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(11) | EP 0 856 826 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | A security system |
| (57) A security system 10 comprises a sensor array 20 which includes, for example, a motion
sensor, a thermal sensor and a camera, a control unit 18 which includes a microprocessor
arranged to receive data from sensors and to determine whether the data received from
the sensors constitutes a threat. The microprocessor can provide an alert to an operator
on determination of a threat. The microprocessor includes neural net software which
automatically re-defines the threat parameters stored in the memory of the microprocessor
if the operator identifies a false threat. According to another aspect of the invention, a vehicle logging system is provided comprising a camera 114 for recording an image of the registration mark of the vehicle entering an area, and optical camera recognition means, for example, a computer with image processing software, for identifying the vehicle registration mark from the image recorded on the camera 114. A microprocessor stores details of the vehicle registration mark of the vehicle and also details of a transaction conducted by the vehicle within the aforesaid area. The system is especially useful for eliminating fraud at waste disposal sites by keeping a log of vehicle transactions which can be checked against the registration marks of the vehicle that have been on site on a particulat day (Figure 5). |