Patent RU-2288509-C1 (RU)
Inventor: GERASIMCHUK ALEKSANDR NIKOLAEV
IPC: G08G1/13
Filed: 2005-10-14
Granted: 2006-11-27
Abstract: FIELD: engineering of devices for monitoring, tracking and controlling ground-based vehicles. 
     SUBSTANCE: onboard each vehicle being controlled, signals from global satellite radio-navigation system are received. Current navigation parameters are calculated on basis of these. By means of onboard sensors of vehicle, condition of its units and parts are determined as well as changes of this condition. By means of controller, notifications are generated. By adding fields of service information to notifications, notifications are transformed to messages, in service information fields of which code of identification signs are recorded, current navigation parameters and conditions of units and devices of vehicle. Messages are transferred to high frequency carriers and signals are transformed via radio air to dispatching center. For this, onboard terminal of standard cell phone mobile communication network is used and/or onboard terminal of specialized relay and radio bearing network. In dispatching center, signals of messages are received, demodulated and decoded, primary processing of signals is performed and secondary digital processing of information, determining coordinates and building movement trajectory of vehicle. Trajectories are displayed on background of fragments of electronic map-plan of locale with accompanying text information. After analyzing trajectories, decisions are taken, on basis of which command messages are formed for vehicle with codes of appropriate commands. Command messages are transferred via standard cell phone mobile communication network and/or via specialized relay and radio bearing network to the vehicle. Onboard the vehicle these are decoded, and after that units and devices of vehicle are affected, such as immobilizer. By means of relay and radio bearing network stations, radio tracking is performed over radiation of onboard terminals of specialized relay and radio bearing network mounted on the vehicle. For this, energy, frequency and time radiation parameters are measured from onboard the vehicle and parameter values are sent to dispatching center. There, bearing to radiation source is determined from given base station of relay and radio bearing network and bearing values received from several stations of relay and radio bearing network are used to determine current position of vehicle. Logical processing of parameters of received signals is performed, and results of this processing are used when forming commands transferred to appropriate vehicles via commutation of onboard terminal of cell phone mobile communication network and/or onboard terminal of specialized relay and radio bearing network, and also when forming commands concerning adjustment of radiation parameters of onboard terminal of specialized relay and radio bearing network. These commands are transformed to control codes by both terminals and codes are recorded in command messages relayed to vehicle. After receipt of command messages onboard the vehicle and decoding they are used to affect onboard terminals, causing their enabling/disabling and/or increase/decrease of power and duration of sessions of onboard terminal of specialized relay and radio bearing network. 
     EFFECT: creation of technology, making it possible to improve "costs/efficiency" characteristic for this class of monitoring systems. 
     2 cl, 3 dwg