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EP 1 221 152 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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07.05.2003 Bulletin 2003/19 |
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Date of filing: 20.09.1999 |
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International Patent Classification (IPC)7: G08B 21/00 |
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International application number: |
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PCT/EP9906/950 |
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International publication number: |
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WO 0102/2379 (29.03.2001 Gazette 2001/13) |
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ELECTRONIC PRESENCE SURVEILLANCE
ELEKTRONISCHE ANWESENHEITSÜBERWACHUNG
SURVEILLANCE DE PRESENCE ELECTRONIQUE
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Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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Date of publication of application: |
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10.07.2002 Bulletin 2002/28 |
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Proprietor: Feuillarade, Pascal |
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06310 Beaulieu sur Mer (FR) |
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Inventor: |
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- Feuillarade, Pascal
06310 Beaulieu sur Mer (FR)
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Representative: Viering, Jentschura & Partner |
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Postfach 22 14 43 80504 München 80504 München (DE) |
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References cited: :
EP-A- 0 732 820 FR-A- 2 768 249 US-A- 5 661 460
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EP-A- 0 969 435 US-A- 5 289 163
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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[0001] The present invention relates to electronic surveillance systems for surveilling
the presence of a mobile object within a certain distance with respect to a monitoring
device surveilling the mobile object. Such a system generally consists of primarily
a transmitter, a receiver and a processing unit for processing the data or signals
from the transmitter and received by the receiver. The invention especially relates
to such systems which further release an alarm, when a threshold distance between
the mobile object and the monitoring device is exceeded, and which are able to determine
and indicate the direction of the mobile object with respect to the monitoring unit.
[0002] Hawthorne (U.S. Pat. No. 4,785,291) discloses a system for determining and indicating
the distance between a transmitter and a receiver (monitor), in which the signal indicated
on the receiver turns into an alarm mode signal, as soon as a threshold distance is
exceeded by the transmitter. This system is not able to monitor the direction of the
transmitter. The receiver (monitoring device) is a box intended for stationary use.
[0003] Perez et al. (U.S. Pat. No. 5,289,163) and Musa (U.S. Pat. No. 5,557,259) suggest
locating systems for surveilling the distance and the direction of a transmitter in
reference to a receiver by releasing an audible and/or vibrating alarm and displaying
the direction of the transmitter on the receiver as soon as a threshold distance is
exceeded by the transmitter. In Perez et al. the monitoring device is a box, attacheable
to a person. In Musa the monitoring device has the form of a bracelet, attacheable
to the wrist of a person.
[0004] Dalsace (Fr. Pat. App. No. 2,749,994) suggests a transmitter-receiver system for
releasing an audible or vibrating alarm, when a selectable predetermined threshold
distance is exceeded. This system does not provide a direction monitoring option.
[0005] Recently, Pearl (www.pearl.com) has revealed a surveillance system, wherein the distance
and the direction between a monitor box and an element attacheable to the person to
be surveilled (e.g. a child) may be displayed on an LCD display. This system does
not provide an alarm option for releasing an alarm when a preset threshold distance
is exceeded.
[0006] A system measuring and displaying the distance, and releasing an alarm if a threshold
distance is exceeded, is known from US-A-5 661 460. This system, however, does not
disclose that the distance measuring unit is incorporated into a mobile phone, sharing
the CPU of the mobile phone.
[0007] It is the intention of the present invention to provide a compact, portable surveillance
system for surveilling the presence of a mobile object within a predetermined distance
range of up to typically several 10 metres with respect to a monitoring device. Such
a system is a useful instrument e.g. for an adult having the charge of a playing child.
She/he can attach the mobile object to the child and have the monitoring device with
her/him, and thus she/he can surveille the presence of the child without the need
of permanent direct visual or mechanical contact to the child, which would prevent
her/him from doing other things during her/his activity of surveilling the child.
The surveillance system can also be used for other applications, such as monitoring
the distance of elderly or mentally disabled people outside specialized homes or clinics,
of a team or group member (outdoor sports and leisure activities), a pet or the like.
[0008] According to the present invention said monitoring device is incorporated into a
mobile phone apparatus such as e.g. a GSM cellular phone. Due to this latter feature
the surveillance system of the invention is especially comfortable for users: mobile
phones are very common by now, thus it is not unusual that a person owns a private
mobile phone and permanently has this phone with her. This means that when whishing
to use the surveillance system the person does not have to take an additional, bulky
device with her, but she can just use a supplementary option of her mobile phone,
which she has with her anyway.
[0009] The presence surveillance system according to the present invention comprises on
the one hand an R.F. transmitter emitting R.F. signals and being attacheable to a
mobile object. On the other hand it comprises an electronic monitoring device comprising
a receiver section being adapted to said R.F. transmitter. Said receiver section receives
R.F. signals emitted by the R.F. transmitter and provides a corresponding signal to
a distance measuring section also provided in the monitoring device. The distance
measuring section determines from the received actual R.F. signal more or less permanently
at successive time points the corresponding momentary actual distance of the R.F.
transmitter with respect to the monitoring device and outputs a corresponding distance
output signal to a microprocessor section provided in the monitoring device. Said
microprocessor section preferably compares the value of said distance output signal
to a threshold value corresponding to a predetermined threshold distance, which should
not be exceeded by the mobile object, i.e. for example by the child. The threshold
value is for example stored in a memory of the monitoring device being provided therein.
If now the value of the distance output signal exceeds said threshold value, an alarm
section provided in the monitoring device generates an alarm.
The aforementioned microprocessor further controls the receiver section, the measuring
section and the alarm section.
The R.F., i.e. the Radio Frequency spectral range has been chosen, as by using this
spectral range transmission with little distortion or interference can be obtained,
even with the presence of objects such as walls, doors and vegetation in the transmission
path of R.F. signals between the R.F. transmitter and the monitoring device.
[0010] The mobile phone apparatus of the invention comprises a dice comprising a CPU, with
a transceiver, an alarm unit disposing of one or more alarms such as audible, voice
and vibrational alarms, a keyboard and a display being connected to the CPU.
[0011] According to the invention at least the microprocessor section of the monitoring
device is integrated into the dice of the mobile phone apparatus, the monitoring device
is operatively connected to and thus may be operated via the keyboard and the display
of the mobile phone apparatus. Preferably the actual distances are recallable into
the display of the mobile phone apparatus by means of the keyboard thereof. Optionally,
if the mobile phone apparatus disposes of a menu, the aforementioned actions of operating
the monitoring device and of recalling the actual distances into the display of the
mobile phone apparatus may also be done via said menu.
[0012] Although there is the possibility that the monitoring device is provided with a separate
alarm section for generating specific alarms, the alarm section of the monitoring
device is preferably integrated into the alarm unit of the mobile phone apparatus,
and optionally disposes of specific alarms for the electronic surveillance system,
which are different from the conventional alarms of the mobile phone.
[0013] The actual distance between the R.F. transmitter and the monitoring device may be
measured via the signal amplitude of the R.F. signal received by the receiver section
of the monitoring device. This method has the disadvantage that, even though an appropriate
spectral range has been chosen, objects and obstacles in the transmission path of
the R.F. signal can distort the R.F. signal, such that the actual distance is determined
incorrectly. Therefore, for measuring the actual distance between the R.F. transmitter
and the monitoring device there is preferably provided a pulsed operation mode. In
this mode the R.F. transmitter emits as R.F. signals a series of successive R.F. pulses
at a corresponding series of successive time points of emission. At least one of the
microprocessor section and the receiver section of the monitoring device is synchronized
to these time points of emission of said R.F. pulses. For example the R.F. transmitter
and the monitoring device comprise each a clock, and the two clocks run at the same
speed and emit their respective clock pulses at the same time point or alternatively
at two different time points having a specified fixed time distance with respect to
each other. The distance measuring section determines the propagation time period
of each of the R.F. pulses proceeding between the R.F. transmitter and the monitoring
device. From this propagation time period the actual distance between the R.F. transmitter
and the monitoring device is determined. The distance measuring section generates
a distance output signal corresponding to the propagation time period and thus to
the actual distance measured before and provides said distance output signal to the
display of the mobile phone apparatus, where the distance output signal is displayed
in a form such as "DISTANCE:.....m". Optionally said distance output signal is displayed
via a bar graph.
[0014] Although the pulsed operation mode is preferably used according to the invention,
it would be possible instead that there is provided a monitor transmitter in the monitoring
device which is designed such that it emits a switch-on impulse to the mobile object.
The switch-on pulse may be emitted when a key of the mobile phone or a button is depressed.
The mobile object comprises a transceiver comprising, besides the R.F. transmitter,
an object receiver for receiving the switch-on impulse from the monitor transmitter.
The transceiver is designed such that receipt of the switch-on impulse switches the
R.F. transmitter of the mobile object on and initiates the emission of one or more
R.F. signals by the R.F. transmitter.
Optionally the switch-on impulse from the monitor transmitter initiates the emission
of the first pulse in pulsed operation mode and the a distance measurement in pulsed
operation mode.
[0015] According to a further preferred option of the surveillance system according to the
invention the direction of the location of the R.F. transmitter with respect to the
location of the monitoring device is detected via determination of the polarization
of the R.F. signals. The monitoring device for this purpose further comprises a direction
detector circuit. For detecting said direction the user e.g. executes a rotation around
the vertical axis of his upright body by an angle of 360 degrees. When doing so he
also rotates the monitoring device, i.e. the mobile phone apparatus. When, according
to the relative orientation of the antenna of the monitoring device and the field
vector of the R.F. signal, the receiver signal is e.g. a maximum or e.g. a minimum,
corresponding to the fact that the direction of the location of the R.F. transmitter
has been found, the alarm section of the monitoring device generates an alarm. The
alarm can be an alarm of the mobile phone apparatus or alternatively a separate audible
or visible signal such as a beep or an LED. Alternatively or in addition the display
indicates that the direction has been found. The direction of the location of the
R.F. transmitter with respect to the location of the monitoring device can alternatively
be detected via the signal amplitude of the R.F. signal. But this latter method has
the disadvantage that objects or obstacles in the transmission path of the R.F. signals
possibly distort the transmission of the R.F. signals, which makes it difficult to
search and find the direction.
[0016] According to another option the predetermined threshold distance is presettable via
the keyboard and preferably under support of the display of the mobile phone apparatus
or, if available, via the menu of the latter. This setting of the threshold distance
can be such that the threshold distance is a permanent preset value. Preferably the
threshold distance is settable and changeable by the user of the surveillance system
as often as she/he wants, wherein the value of the threshold distance is freely adjustable
to be a value not greater than the value of the predetermined distance range of e.g.
50 metres. Further, the monitoring device may even be settable to a plurality of threshold
values to respond to a plurality of additional different threshold distances, and
the alarm section of the monitoring device generates an alarm each time the value
of the distance output signal exceeds one out of the plurality of corresponding additional
different threshold values. These additional different threshold values are preferably
settable, just like the first threshold value. They may be presettable (once) by the
manufacturer, but they are preferably settable by the user as often as she/he wants,
with the threshold values being freely adjustable in the same way as for the abovementioned
single threshold value. Further, preferably different alarms may be available for
the different threshold values. For example a vibrational and/or a visual alarm is
generated for all but the largest threshold values, and a beep and optionally a visual
alarm is generated for the largest threshold value. Or a pulsed beep is generated
for all but the largest threshold values, wherein the pulse repetition rate may be
related, e.g. directly proportional, to the respective threshold value, and a permanent
beep is generated for the largest threshold value. Or beeps of different frequencies
or of different sound volumes are generated for the different threshold values, or
the like. Alternatively some other combination of alarms out of the available alarms
- comprising the separate ones and the ones of the mobile phone - may be provided.
[0017] The surveillance system being intended also for outdoor use, the R.F. transmitter
is preferably hermetically sealed into a waterproof casing. Preferably the R.F. transmitter
is further incorporated into a bracelet with an adjustable strap, such that the bracelet
can be attached to a wrist, arm, ankle, leg, the upper part of the body, the neck
or the like of a person. The R.F. transmitter may alternatively be incorporated into
a belt, a pendant to be worn on a strap or the like around the neck or the like, or
the like.
[0018] The presence surveillance system of the invention preferably further disposes of
a standby mode. When the surveillance system is in standby mode, the R.F. transmitter
emits R.F. signals, the receiver of the monitoring device receives the R.F. signals,
the distance measuring section determines the distance between the R.F. transmitter
and the monitoring device and provides a distance output signal to the microprocessor
section of the monitoring device. The microprocessor section comprises a comparing
section being designed such that it then compares the value of the distance output
signal to a or, if several threshold values are available, to the several different
threshold value/s. When the value of the distance output signal exceeds the or any
out of the several different threshold value/s, respectively, an alarm is released,
and alternatively also the distance output signal is provided to the display of the
mobile phone, such that the distance is displayed on the display of the mobile phone.
If a direction detector cercuit is available, as there is in the preferably, upon
exceeding of a threshold distance also a direction output signal is provided to the
display or to the alarm unit or to both.
[0019] In normal operation mode all features of said standby mode are available, and in
addition the distance output signal is permanently provided to the display of the
mobile phone for being displayed there. I.e. the distance output signal is provided
to the display for being displayed there also in that case, when no predetermined
threshold value is exceeded.
[0020] Summarizing, in standby mode the user is contacted by the monitoring device only
in that case, when a predetermined threshold value is exceeded. In that case, when
a predetermined threshold value is exceeded, at least an alarm is raised. Preferably
the system is switched to normal operation mode as well. In normal operation mode
distance and, if a direction detection circuit is available, direction of the R.F.
tranmitter with respect to the monitoring device are permanently indicated, wether
the distance exceeds a threshold distance or not; when a threshold distance is exceeded,
an alarm is raised.
[0021] When a predetermined threshold distance is exceeded while the mobile phone apparatus
is in use in conventional telephone mode, e.g. while the user is making or receiving
a telephone call or while the user is setting the menu or while she/he is checking
a mail box of the mobile phone apparatus, if such is available, or the like, at least
an alarm is raised. Preferably the surveillance system is in addition automatically
switched to normal operation mode, i.e. the distance output signal and optionally
the direction output signal is/are provided to the display to be indicated there.
Neither said raising of an alarm nor said switching to normal operation mode, when
a predetermined threshold distance is exceeded, interrupts the activity of the conventional
telephone mode momentarily in use. I.e., for example a telephone conversation is not
interrupted, when a threshold distance is exceeded.
[0022] Summarizing, the incorporated monitoring device of the invention does not alter the
conventional functions of the mobile phone apparatus.
[0023] The monitoring device of the invention is preferably incorporated into a cellular
mobile phone apparatus, nevertheless it may alternatively be incorporated into the
cordless mobile phone apparatus of a conventional cordless phone.
[0024] While the features according to the invention are described in the claims, the invention
is further described in reference to a preferred embodiment of the invention as shown
in the drawings.
Fig. 1 shows a bracelet A with an incorporated R.F. transmitter C according to the
invention.
Fig. 2 shows a monitoring device E according to the preferred embodiment of the invention
being, according to the invention, incorporated into an mobile phone apparatus APP
and a microprocessor section P according to the preferred embodiment of the invention.
Fig. 3 shows an R.F. transmitter C according to the preferred embodiment of the invention.
Fig. 4 shows a monitoring device E according to the preferred embodiment of the invention.
Fig. 5 shows part of a monitoring device E according to another embodiment of the
invention.
[0025] The description of the preferred embodiment will be made in reference to figures
1 to 4 of the drawings.
[0026] The R.F. transmitter C according to the preferred embodiment of the invention is
preferably incorporated into a bracelet A, as shown in fig. 1.
[0027] Referencing to fig. 2 a monitoring device E according to a preferred embodiment of
the invention is incorporated into a mobile phone apparatus (APP). The mobile phone
apparatus according to the preferred embodiment of the invention comprises an antenna
AN, a display DI, a keyboard KB, and a microprocessor section P, here for clarity
shown outside the mobile phone apparatus, but according to the invention being incorporated
into the mobile phone apparatus.
[0028] With reference to fig. 3 the R.F. transmitter C according to the preferred embodiment
of the invention is incorporated into a bracelet A and comprises an antenna B and
a lithium cell D. The antenna B is a double line antenna. The encoding is 12 bit and
programmable via a switch (not shown). For alimentation a PP3 battery with an output
voltage of 9 Volts is used. The frequency of the R.F. transmitter C is 433 MHz. The
cycle of emission is 1 emission per second, wherein the emission is optionally visualized
via an LED. The range of emission of the R.F. transmitter C is typically 20 metres.
The R.F. transmitter C is sealed into a casing made of ABS and having the size of
a typical sports wristwatch. A membrane being tightly connected with the casing guarantees
the hermetical disconnection of the R.F. transmitter C from the environmental atmosphere.
An adjustable strap allows the adjustment of the bracelet to an arm, wrist, upper
part of the body, an ankle or the like the bracelet is to be attached to.
[0029] With reference to fig. 4 the monitoring device E comprises an antenna F, an alimentation
means G, a receiver section H with a direction detector circuit, a distance measuring
section I, a threshold adjustment section J for setting the predetermined threshold
value or values, a switching means K for switching the monitoring device E between
normal operation mode and standby mode, an alarm 1 L and a display 1 M, each of the
two latter being related to the measurement of the distance between the R.F. transmitter
C and the monitoring device E, an alarm 2 N and a display 2 O, each of the two latter
being related to the determination of the direction of the R.F. transmitter C with
respect to the monitoring device E, and a microprocessor section P.
[0030] The antenna F of the monitoring device E is a SMA-double line joint and at the same
time a quarter-wave antenna. The alimentation G is identical with the battery of the
mobile phone apparatus. The level of the received R.F. signal is indicated digitally
via a bar graph. The receiver section H operates at a frequency of 433 MHz. The encoding
is 12 bit and programmable via a switch (not shown).
[0031] The microprocessor section P of the monitoring device E consists of a section of
a silicon dice comprising a printed circuit. The silicon dice of the preferred embodiment
is identical with the dice of the mobile phone apparatus, which dice is modified by
the microprocessor section P, the dice of the mobile phone apparatus comprising registers,
an arithmetic-logic unit ALU, a control unit, a bus, data input and output interfaces
and a line amplifier and disposing of bus adresses indicating the location of data
to be read from or to be written into a central memory.
[0032] For fullfilling the functions of the surveillance system, which are supplementary
to the conventional functions of a mobile phone apparatus, a microprogram is integrated
into the microprocessor section P.
[0033] The complete dice thus treats the four functions of:
- operating in the conventional mobile phone net,
- permanently transmitting, processing and maintaining information coming from the R.F.
transmitter C towards the mobile phone apparatus,
- utilizing the release means of the existing audible, voice or vibrational alarms of
the mobile phone apparatus, when a predetermined threshold distance between the R.F.
transmitter C and the receiver H (the mobile phone apparatus) is exceeded, and
- indicating the direction of the R.F. transmitter C on the display and/or via an alarm
of the mobile phone apparatus via the magnetic pole of the R.F. transmitter C (or
an analogous system).
[0034] The microprocessor section P calculates in real time the propagation time period
of R.F. signals from the R.F. transmitter C to the mobile phone apparatus. This calculation
allows the indication of the exact distance of the location of the R.F. transmitter
C with respect to the location of the mobile phone apparatus on the display DI of
the mobile phone apparatus.
[0035] The detailed functioning of the monitoring device E according to the preferred embodiment
of the invention in its function of detecting an actual distance being larger than
a threshold distance is the following.
The R.F. receiver H receives an R.F. signal and transmits the R.F. signal to the distance
measuring section I. The threshold adjustment section J releases via the distance
measuring section I the activation of the alarm 1 L and the display 1 M. Then the
alarm 1 L releases the alarm 2 N and the display 2 O. The alarm 2 N and the display
2 O are repeated until manual extinction.
The alarm 1 L and the display 1 M are repeated until the threshold distance J is not
exceeded any more (optional manual extinction).
[0036] The surveillance system of the preferred embodiment of the invention disposes of
four threshold distances, which are settable in the threshold adjustment section J
and via the menu or generally via the keyboard KB and the display DI of the mobile
phone apparatus to be e.g. 5, 10, 15 and 20 metres.
[0037] In standby mode an alarm 1 L is released when one out of the four predetermined threshold
distances is exceeded. When exceeding 5 metres, a beep with a duration of 0.5 seconds
is emitted every 4 seconds, when exceeding 10 metres said beep is emitted every 2
seconds, when exceeding 15 metres, said beep is emitted every one second, and finally
when 20 metres are exceeded, a permanent beep is emitted, and the system is switched
to normal operation mode. The alarm 1 L triggers the display 1 M, which in turn releases
the alarm 2 N and the display 2 O. Said beep is preferably an audible alarm of the
mobile phone.
[0038] In normal operation mode the receiver H and/or the distance measuring section I activate/s
the display 1 M, which in turn releases the alarm 2 N and the display 2 O.
The alarm 2 N and the display 2 O are repeated until manual extinction.
[0039] The display 1 N can e.g. be a text such as "DISTANCE:....m" displayed on the display
of the mobile telephone.
The display 2 O can be a text such as "Direction OK", when the direction of the location
of the R.F. transmitter C is found, and a text such as "Searching Transmitter" otherwise.
In normal operation mode, the display of the mobile telephone e.g. alternately displays
the texts of display 1 N and display 2 O, each of the texts staying on the display
for e.g. one second, or, according to the choice by the user, the display 1 N permanently
stays visible on the display, until manual extinction.
[0040] According to another embodiment of the invention the predetermined distance range
is typically 100 metres. According to still another embodiment said range is a few
or several 10 metres or a plurality of 10 metres.
[0041] The monitoring device of the surveillance system according to the present invention
is preferably incorporated into a cellular mobile phone apparatus, but it may alternatively
also be incorporated into a conventional cordless phone with a cordless mobile phone
apparatus (APP) as shown in fig. 2 and a cordless phone base station (BST) as shown
in fig. 5.
Legend to Drawings
[0042]
Figure 3
A - bracelet
B - antenna
C - transmitter radio frequency
D - alimentation, lithium cell
Figure 4
E - monitoring device
F - antenna
G - alimentation
H - receiver, direction detector
I - distance measuring section
J - threshold adjustment section
K - switching means
L - alarm 1
M - display 1
N - Alarm 2
O - display 2
P - microprocessor
1. A presence surveillance system for surveilling the presence of a mobile object within
a predetermined distance range of up to a plurality of 10 metres, comprising
an R.F. transmitter (A) emitting R.F. signals and being attacheable to said mobile
object, and
an electronic monitoring device (E) for receiving and processing said R.F. signals
for determining the momentary actual distances of said R.F. transmitter with respect
to said monitoring device, the monitoring device correspondingly comprising
- a receiver section being adapted to said R.F. transmitter,
- a distance measuring section determining the actual distance and providing a distance
output signal corresponding to the determined actual distance and being connected
to said receiver section, and
- a microprocessor section,
- wherein the receiver section and the measuring section are controlled by the microprocessor
section,
wherein the monitoring device is incorporated into a mobile phone apparatus (APP)
such as especially a GSM cellular phone apparatus comprising a dice comprising a CPU,
with a transceiver, a keyboard and a display being connected to the CPU,
wherein at least the microprocessor section of the monitoring device is integrated
into the CPU of the mobile phone apparatus and the monitoring device is operatively
connected to the keyboard and the display of the mobile phone apparatus.
2. A presence surveillance system according to claim 1,
wherein further
said microprocessor section comprises a comparing section for comparing the value
of said distance output signal to a threshold value corresponding to a predetermined
threshold distance, and
the monitoring device comprises an alarm section being connected to at least one
out of said distance measuring section and said microprocessor section and being controlled
by said microprocessor section and generating an alarm, when the value of said distance
output signal exceeds said threshold value.
3. A presence surveillance system according to claim 2,
wherein further
the mobile phone apparatus comprises an alarm unit disposing of one or more alarms
such as especially audible, voice and vibrational alarms, and
the alarm section of the monitoring device is integrated into the alarm unit of
the mobile phone apparatus.
4. A presence surveillance system according to any of claims 1 to 3, wherein the mobile
phone apparatus further comprises a menu circuit and a menu program unit operating
the menu circuit, the monitoring device being operated and controlled via said menu
program unit, and the actual distances being recallable into the display of the mobile
phone apparatus by means of the menu program unit thereof.
5. A presence surveillance system according to any of claims 1 to 4, wherein the R.F.
transmitter is designed such that it emits as R.F. signals a series of successive
R.F. pulses with a predetermined pulse period and a predetermined pulse length at
a corresponding series of successive time points of emission in a pulsed operation
mode,
at least one of the microprocessor section and the receiver section of the monitoring
device being synchronized to the time points of emission of said R.F. pulses with
a time delay of zero or not zero with respect to said time points,
the distance measuring section of the monitoring device being designed to determine
the propagation time period of each of the R.F. pulses proceeding between the R.F.
transmitter and the monitoring device,
the distance measuring section for each R.F. pulse generating a distance output
signal corresponding to the respective propagation time period of the respective R.F.
pulse and thus to the actual distance between the R.F. transmitter and the monitoring
device, and
the distance output signal being displayed on the display of the mobile phone apparatus,
optionally together with a text such as "Distance: <...> m", wherein at the place
of the "<...>" the distance output signal is displayed in the form of a respective
numerical value.
6. A presence surveillance system according to any of claims 1 to 5, wherein said distance
output signal is displayed via a bar graph.
7. A presence surveillance system according to any of claims 1 to 6, further comprising
a direction detector circuit for generating a direction output signal indicative of
the direction of the location of the R.F. transmitter with respect to the location
of the monitoring device.
8. A presence surveillance system according to any of claims 2 to 7,
wherein the monitoring device is designed such that it responds to a plurality
of different threshold values,
the comparing section of the microprocessor section being designed and controlled
to compare the value of the distance output signal to at least one out of said plurality
of different threshold values, and
the alarm section of the monitoring device being designed and controlled to generate
an alarm each time the value of the distance output signal of the measuring section
exceeds one out of the plurality of different threshold values.
9. A presence surveillance system according to any of claims 2 to 8, wherein the or each
of the predetermined threshold distance/-s is presettable to a value to be at most
the value of the predetermined distance range, but otherwise freely adjustable, via
the keyboard and/or the display of the mobile phone apparatus or via the menu program
unit thereof, respectively.
10. A presence surveillance system according to any of claims 1 to 9, wherein the actual
distances are recallable into the display of the mobile phone apparatus by means of
the keyboard thereof.
11. A presence surveillance system according to any of claims 7 to 10, wherein the direction
of the R.F. transmitter with respect to the monitoring device is recallable by means
of the keyboard of the mobile phone apparatus, such that the direction is indicated
by the display and/or via at least one out of the alarms of the mobile phone apparatus
or alternatively via a separate audible or visual or sensual alarm such as e.g. a
beep, an LED or a buzzer, respectively.
12. A presence surveillance system according to any of claims 2 to 10, wherein the actual
distances are indicated on the display of the mobile phone apparatus, when the or
alternatively any out of the predetermined threshold distance/s is exceeded by the
actual distance.
13. A presence surveillance system according to any of claims 7 to 12, wherein the direction
of the R.F. transmitter with respect to the monitoring device is indicated on the
display and/or via at least one out of the alarms of the mobile phone apparatus or
alternatively via a separate audible or visual or sensual alarm such as e.g. a beep,
an LED or a buzzer, respectively, upon exceeding of a predetermined threshold distance
by the actual distance.
14. A presence surveillance system according to any of claims 1 to 13, wherein the R.F.
transmitter is hermetically sealed into a waterproof casing.
15. A presence surveillance system according to one of claims 1 to 14, wherein the R.F.
transmitter is incorporated into a bracelet attacheable to a wrist, an arm, an upper
part of the body, an ankle, a leg, the neck or the like of a person.
16. A presence surveillance system according to any of claims 1 to 15, wherein further
the monitoring device comprises an SMA - double line joint and quarter wave antenna
and the R.F. transmitter comprises an integrated double line antenna.
17. The mobile phone apparatus of a presence surveillance system according to any of claims
1 to 8, 11 and 12, the mobile phone apparatus comprising incorporated therein the
monitoring device of the system.
18. A cordless phone installation comprising a cordless phone-base-station and a cordless
mobile phone apparatus which is the mobile phone apparatus of a presence surveillance
system according to any of claims 1 to 8, 11 and 12, the cordless phone apparatus
comprising incorporated therein the monitoring device of the system.
1. Ein Anwesenheits-Überwachungssystem zum Überwachen der Anwesenheit eines mobilen Objektes
innerhalb eines vorbestimmten Abstandsbereichs von bis zu einer Mehrzahl von 10 Metern,
aufweisend
einen R.F.-Sender (A), der R.F.-Signale emittiert und an dem mobilen Objekt anbringbar
ist, und
eine elektronische Überwachungsvorrichtung (E) zum Empfangen und Verarbeiten der
R.F.-Signale zum Bestimmen der momentanen tatsächlichen Abstände des R.F.-Senders
bezüglich der Überwachungsvorrichtung, wobei die Überwachungsvorrichtung entsprechend
aufweist
- eine Empfängersektion, die an den R.F.-Sender angepasst ist;
- eine Abstandmesssektion, die den tatsächlichen Abstand bestimmt und ein Abstand-Ausgabesignal
entsprechend dem bestimmten tatsächlichen Abstand bereitstellt und an die Empfängersektion
angeschlossen ist, und
- eine Mikroprozessorsektion,
- wobei die Empfängersektion und die Messsektion mittels der Mikroprozessorsektion
gesteuert werden,
wobei die Überwachungsvorrichtung in ein Mobiltelefongerät (APP) eingebaut ist
wie vornehmlich ein GSM-Mobiltelefongerät, das einen Chip aufweist, der eine CPU aufweist,
mit einem Sende-/Empfangsgerät, einer Tastatur und einer Anzeige, angeschlossen an
die CPU, wobei zumindest die Mikroprozessorsektion der Überwachungsvorrichtung in
die CPU des Mobiltelefongeräts integriert ist und die Überwachungsvorrichtung wirkverbunden
an die Tastatur und die Anzeige des Mobiltelefongeräts angeschlossen ist.
2. Ein Anwesenheits-Überwachungssystem gemäß Anspruch 1,
wobei ferner
die Mikroprozessorsektion eine Vergleichsektion zum Vergleichen des Werts des Abstand-Ausgabesignals
mit einem Schwellenwert gemäß einem vorbestimmten Schwellenabstand aufweist, und
die Überwachungsvorrichtung eine Alarmsektion aufweist, die an mindestens einen
von der Abstandmesssektion und der Mikroprozessorsektion angeschlossen ist, und die
mittels der Mikroprozessorsektion gesteuert wird und die einen Alarm erzeugt, wenn
der Wert des Abstand-Ausgabesignals den Schwellenwert überschreitet.
3. Ein Anwesenheits-Überwachungssystem gemäß Anspruch 2,
wobei ferner
das Mobiltelefongerät eine Alarmeinheit aufweist, verfügend über einen oder mehrere
Alarme wie vornehmlich akustische, Sprach- und Vibrations-Alarme und
die Alarmsektion der Überwachungsvorrichtung in die Alarmeinheit des Mobiltelefongeräts
integriert ist.
4. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 3, wobei das Mobiltelefongerät
ferner einen Menüschaltkreis und eine den Menüschaltkreis betreibende Menüprogrammeinheit
aufweist, wobei die Überwachungsvorrichtung über die Menüprogrammeinheit betrieben
und gesteuert wird, und wobei die tatsächlichen Abstände in die Anzeige des Mobiltelefongeräts
mittels der Menüprogrammeinheit davon abrufbar sind.
5. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 4, wobei der R.F.-Sender
derart gestaltet ist, dass er als R.F.-Signale eine Serie von aufeinanderfolgenden
R.F.-Pulsen mit einer vorbestimmten Pulsperiode und einer vorbestimmten Pulslänge
zu einer entsprechenden Serie von aufeinanderfolgenden Emissionszeitpunkten in einem
gepulsten Betriebsmodus emittiert,
wobei zumindest eine der Mikroprozessorsektion und der Empfängersektion der Überwachungsvorrichtung
mit den Emissionszeitpunkten der R.F.-Pulse synchronisiert ist, mit einer Zeitverzögerung
von Null oder Nicht-Null bezüglich der Zeitpunkte,
wobei die Abstandsmesssektion der Überwachungsvorrichtung zum Bestimmen der Propagationszeitperiode
von jedem der R.F.-Pulse gestaltet ist, übergehend zwischen dem R.F.-Sender und der
Überwachungsvorrichtung,
wobei die Abstandmesssektion für jeden R.F.-Puls ein Abstand-Ausgabesignal gemäß
der jeweiligen Propagationszeitperiode des jeweiligen R.F.-Pulses erzeugt, und daher
gemäß dem tatsächlichen Abstand zwischen dem R.F.-Sender und der Überwachungsvorrichtung,
und
wobei das Abstand-Ausgabesignal an der Anzeige des Mobiltelefongeräts angezeigt
wird, optional gemeinsam mit einem Text wie beispielsweise "Abstand: <...> m", wobei
an der Stelle des "<...>" das Abstand-Ausgabesignal in der Form eines jeweiligen numerischen
Werts angezeigt wird.
6. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 5, wobei das Abstand-Ausgabesignal
über ein Balkendiagramm angezeigt wird.
7. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 6, ferner aufweisend
einen Richtungsdetektor-Schaltkreis zum Erzeugen eines Richtungs-Ausgabesignals, anzeigend
die Richtung der Position des R.F.-Senders bezüglich der Position der Überwachungsvorrichtung.
8. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 2 bis 7,
wobei die Überwachungsvorrichtung derart gestaltet ist, dass sie auf eine Mehrzahl
von unterschiedlichen Schwellenwerten anspricht,
wobei die Vergleichsektion der Mikroprozessorsektion derart gestaltet und gesteuert
wird, dass der Wert des Abstand-Ausgabesignals mit mindestens einem der Mehrzahl von
unterschiedlichen Schwellenwerten verglichen wird, und
wobei die Alarmsektion der Überwachungsvorrichtung derart gestaltet und gesteuert
wird, dass sie einen Alarm jedes Mal erzeugt, wenn der Wert des Abstand-Ausgabesignals
der Messsektion einen von der Mehrzahl von unterschiedlichen Schwellenwerten überschreitet.
9. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 2 bis 8, wobei der oder
jeder der vorbestimmten Schwellenabstand/-abstände auf einem Wert voreinstellbar ist,
der höchstens der Wert des vorbestimmten Abstandsbereichs ist, aber ansonsten frei
justierbar, über die Tastatur und/oder die Anzeige des Mobiltelefongeräts bzw. über
die Menüprogrammeinheit davon.
10. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 9, wobei die tatsächlichen
Abstände in die Anzeige des Mobiltelefongeräts mittels der Tastatur davon abrufbar
sind.
11. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 7 bis 10, wobei die
Richtung des R.F.-Senders bezüglich der Überwachungsvorrichtung mittels der Tastatur
des Mobiltelefongeräts abrufbar ist, derart, dass die Richtung mittels der Anzeige
und/oder über mindestens einen von den Alarmen des Mobiltelefongeräts oder alternativ
über einen separaten akustischen oder visuellen oder taktilen Alarm angezeigt wird,
wie beispielsweise ein Piepston, eine LED beziehungsweise ein Buzzer.
12. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 2 bis 10, wobei die
tatsächlichen Abstände an der Anzeige des Mobiltelefongeräts angezeigt werden, wenn
der oder alternativ ein beliebiger der vorbestimmten Schwellenabstand/abstände von
dem tatsächlichen Abstand überschritten wird.
13. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 7 bis 12, wobei die
Richtung des R.F.-Senders bezüglich der Überwachungsvorrichtung an der Anzeige und/oder
über mindestens einen von den Alarmen des Mobiltelefongeräts oder alternativ über
einen separaten akustischen oder visuellen oder taktilen Alarm wie beispielsweise
ein Piepston, eine LED bzw. ein Buzzer angezeigt wird, beim Überschreiten eines vorbestimmten
Schwellenabstands durch den tatsächlichen Abstand.
14. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 13, wobei der
R.F.-Sender hermetisch in einem wasserfesten Gehäuse abgedichtet ist.
15. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 14, wobei der
R.F.-Sender in ein Armband eingebaut ist, anbringbar an ein Handgelenk, einen Arm,
einen oberen Teil des Körpers, einen Knöchel, ein Bein, den Hals oder Ähnliches von
einer Person.
16. Ein Anwesenheits-Überwachungssystem gemäß einem der Ansprüche 1 bis 15, wobei ferner
die Überwachungsvorrichtung eine SMA-Doppelleitungsverbindung und Viertelwellenantenne
aufweist und der R.F.-Sender eine integrierte Doppelleitungsantenne aufweist.
17. Das Mobiltelefongerät eines Anwesenheits-Überwachungssystems gemäß einem der Ansprüche
1 bis 8, 11 und 12, wobei das Mobiltelefongerät darin eingebaut die Überwachungsvorrichtung
des Systems aufweist.
18. Eine Schnurlostelefon-Anlage, die eine Schnurlöstelefon-Basisstatiön und ein Schnurlosmobiltelefon-Gerät
aufweist, welches das Mobiltelefongerät eines Anwesenheits-Überwachungssystems gemäß
einem der Ansprüche 1 bis 8, 11 und 12 ist, wobei das Schnurlostelefon-Gerät darin
eingebaut die Überwachungsvorrichtung des Systems aufweist.
1. Système de surveillance de présence pour surveiller la présence d'un objet mobile
dans une portée déterminée de distance jusqu'à une pluralité de 10 mètres, comprenant
un émetteur RF (A) émettant des signaux RF et qui peut être fixé audit objet mobile,
et
un dispositif de contrôle électronique (E) pour recevoir et traiter lesdits signaux
RF pour déterminer les distances instantanées réelles dudit émetteur RF par rapport
audit dispositif de contrôle, le dispositif de contrôle comprenant de façon correspondante
- une section de réception qui est adaptée audit émetteur RF,
- une section de mesure de distance déterminant la distance réelle et fournissant
un signal de sortie de distance correspondant à la distance réelle déterminée et étant
raccordée à ladite section de réception, et
- une section formant microprocesseur,
- la section formant récepteur et la section de mesure étant commandées par la section
formant microprocesseur,
ledit dispositif de contrôle étant incorporé dans un poste téléphonique mobile
(APP) comme par exemple notamment un dispositif de téléphone cellulaire GMS, comprenant
une plaquette comprenant une unité centrale CPU, un émetteur-récepteur, un clavier
et un dispositif d'affichage étant connectés à l'unité centrale CPU, et dans lequel
au moins la section à microprocesseur du dispositif de contrôle est intégrée dans
l'unité CPU du dispositif de téléphone mobile, et le dispositif de contrôle est connecté
de façon opérationnelle au clavier et au dispositif d'affichage du dispositif de téléphone
mobile..
2. Système de surveillance de présence selon la revendication 1 dans lequel en outre
ladite section formant microprocesseur comprend une section de comparaison pour
comparer la valeur dudit signal de sortie de distance à une valeur de seuil correspondant
à une distance de seuil prédéterminée, et le dispositif de contrôle comprend une section
d'alarme qui est connectée à au moins l'une desdites sections de mesure de distance,
et ladite section à microprocesseur et étant commandé par ladite section à microprocesseur,
et produisant une alarme lorsque la valeur dudit signal de sortie de distance dépasse
ladite valeur de seuil.
3. Système de surveillance de présence selon la revendication 2, dans lequel en outre
le dispositif de téléphone mobile comprend une unité d'alarme disposant d'une ou
plusieurs alarmes comme par exemple les alarmes audibles, vocales et vibrationnelles,
et la section d'alarme du dispositif de contrôle est intégrée dans l'unité d'alarme
du dispositif de téléphone mobile.
4. Système de surveillance de présence selon l'une quelconque des revendications 1 à
3, dans lequel le dispositif de téléphone mobile comporte en outre un circuit à menu
et une unité de programme à menu faisant fonctionner le circuit à menu, le dispositif
de contrôle étant actionné et commandé par l'intermédiaire de ladite unité de programme
à menu, et les distances actuelles pouvant être appelées dans l'affichage du dispositif
à téléphone mobile au moyen d'une unité de programme à menu d'un seul dispositif.
5. Système de surveillance de présence selon l'une quelconque des revendications 1 à
4, dans lequel l'émetteur RF est agencé de telle sorte qu'il émet comme signaux RF
une série d'impulsions RF successives ayant une période d'impulsion prédéterminée,
et une longueur d'impulsion prédéterminée à une série d'instants successifs d'émission
dans un mode de fonctionnement pulsé,
au moins l'une de la section à microprocesseur et de la section à récepteur du
dispositif de contrôle étant synchronisée sur les instants d'émission desdites impulsions
RF avec un retard égal à zéro ou non égal à zéro par rapport auxdits instants,
la section de mesure de distance du dispositif de contrôle étant conçue de manière
à déterminer l'intervalle de temps de propagation de chacune des impulsions RF transmises
entre l'émetteur RF et le dispositif de contrôle,
la section de mesure de distance pour chacune des impulsions RF produisant un signal
de sortie de distance correspondant à l'intervalle de temps de propagation respectif
de l'impulsion RF respective et par conséquent à la distance réelle entre l'émetteur
RF et le dispositif de contrôle, et
le signal de sortie de la distance étant affiché sur le dispositif d'affichage
du dispositif à téléphone mobile, facultativement conjointement avec un texte tel
que "distance: <...> m", le signal de sortie de distance étant affiché, à la place
de "<...>" sous la forme d'une valeur numérique respective.
6. Système de surveillance de présence selon l'une quelconque des revendications 1 à
5, dans lequel ledit signal de sortie de distance est affiché par l'intermédiaire
d'un graphique à barres.
7. Système de surveillance de présence selon l'une quelconque des revendications 1 à
6, comprenant en outre un circuit formant détecteur de direction pour produire un
signal de sortie de direction indicatif de la direction de l'emplacement de l'émetteur
RF par rapport à l'emplacement du dispositif de contrôle.
8. Système de surveillance de présence selon l'une quelconque des revendications 2 à
7, dans lequel le dispositif de contrôle est conçu de telle sorte qu'il répond à une
pluralité de différentes valeurs de seuil,
la section de comparaison de la section à microprocesseur étant conçue et commandée
de manière à comparer la valeur du signal de sortie de distance à au moins une de
ladite pluralité de différentes valeurs de seuil, et
la section d'alarme du dispositif de contrôle étant conçue et commandée de manière
à produire une alarme chaque fois que la valeur du signal de sortie de distance de
la section de mesure dépasse l'une d'une pluralité de différentes valeurs de seuil.
9. Système de surveillance de présence selon l'une quelconque des revendications 2 à
8, dans lequel la ou chacune des distances de seuil prédéterminées est préréglable
sur une valeur égale au plus à la valeur de la gamme de distances prédéterminée, mais
sinon pouvant être ajustée librement, par l'intermédiaire du clavier et/ou du dispositif
d'affichage du dispositif de téléphone mobile ou par l'intermédiaire respectivement
du clavier et/ou du dispositif d'affichage et/ou de l'unité de programme à menu de
ce dispositif.
10. Système de surveillance de présence selon l'une quelconque des revendications 1 à
9, selon lequel les distances réelles peuvent être rappelées dans l'affichage d'un
dispositif de téléphone mobile au moyen du clavier de ce dernier.
11. Système de surveillance de présence selon l'une quelconque des revendications 7 à
10, dans lequel la direction de l'émetteur RF par rapport au dispositif de contrôle
peut être rappelée au moyen du clavier du dispositif à téléphone mobile de telle sorte
que la direction est indiquée par le dispositif d'affichage et/ou à l'aide d'au moins
l'une des alarmes du dispositif à téléphone mobile ou sinon par l'intermédiaire d'une
alarme audible, visuelle ou sensible séparée, comme par exemple respectivement un
bip, une diode LED ou un vibreur.
12. Système de surveillance de présence selon l'une quelconque des revendications 2 à
10, dans lequel les distances actuelles sont indiquées sur le dispositif d'affichage
du dispositif de téléphone mobile, lorsque la distance de seuil prédéterminée ou sinon
n'importe laquelle parmi les distances de seuil prédéterminées est dépassée par la
distance réelle.
13. Système de surveillance de présence selon l'une quelconque des revendications 7 à
12, dans laquelle la distance de l'émetteur RF par rapport au dispositif de contrôle
est indiqué sur le dispositif d'affichage et/ou par l'intermédiaire d'au moins l'une
des alarmes du dispositif de téléphone mobile ou sinon au moyen d'une alarme audible,
visuelle ou sensible, comme par exemple respectivement un bip, une diode LED, ou un
vibreur, lors du dépassement d'une distance de seuil prédéterminée par la distance
actuelle.
14. Système de surveillance de présence selon l'une quelconque des revendications 1 à
13, dans lequel le transmetteur RF est scellé hermétiquement dans un boîtier étanche
à l'eau.
15. Système de surveillance de présence selon l'une des revendications 1 à 14, dans lequel
l'émetteur RF est incorporé dans un bracelet pouvant être fixé à un poignet, à un
bras, une partie supérieure du corps, une cheville, un bras, le cou ou analogue d'une
personne.
16. Système de surveillance de présence selon l'une quelconque des revendications 1 à
15, dans lequel en outre le dispositif de contrôle comprend une antenne à joint de
ligne double SMA/antenne quart-d'onde et l'émetteur RF comprend une antenne à ligne
double intégrée.
17. Dispositif de téléphone mobile d'un système de surveillance de présence selon l'une
quelconque des revendications 1 à 8, 11 et 12, le dispositif de contrôle du système
étant incorporé dans le dispositif de téléphone mobile.
18. Installation de téléphone sans fil comprenant un poste téléphonique sans fil de base
et un dispositif de téléphone mobile sans fil, qui est le dispositif de téléphone
mobile d'un système de surveillance de présence selon l'une quelconque des revendications
1 à 8, 11 et 12, le dispositif de contrôle du système étant incorporé dans le dispositif
de téléphone sans fil.