Patent ID: 7880595

Claim:
A vehicle monitoring system comprising: a plurality of detecting devices each of which detects a state of a prescribed position of a vehicle and transmits the result of detection; a plurality of relaying devices each of which receives the result of detection transmitted from the plurality of detecting devices and transmits the result of detection; and a display device which displays the results of detection transmitted by the plurality of relaying devices, wherein: a prescribed detecting device has means of transmitting vehicle information including at least the result of detection and self-identifying information; each of the relaying devices has: vehicle information determining means which decides, on the basis of identifying information of at least one detecting device stored in advance, whether or not to receive vehicle information transmitted by the detecting device, vehicle information transmitting means which transmits, when the vehicle information determining means has decided to receive vehicle information, that vehicle information with the self-identifying information included therein, and registration information transmitting means which transmits registration information including self-identifying information and type information indicating the registration of that self-identifying information; one relaying device out of the plurality of relaying devices transmits vehicle information and registration information to the display device, and the other relaying device transmits vehicle information and registration information to the one relaying device; the one relaying device has: registration information determining means which decides, on the basis of type information stored in advance, whether or not to receive registration information transmitted by the other relaying device, registration information transfer means which, when the registration information determining means has decided to receive the registration information, stores identifying information contained in the registration information and transmits the registration information to the display device, vehicle information determining means which, on the basis of the identifying information of the stored registration information, decides whether or not to receive vehicle information transmitted by the other relaying device, and vehicle information transfer means which, when the vehicle information determining means has decided to receive the vehicle information, transmits the received vehicle information to the display device; and the display device has: receiving means which receives vehicle information and registration information transmitted by the one relaying device, and storage means which, on the basis of type information stored in advance, stores identifying information contained in the registration information.