The method of calculating the distance between two sending - receiving stations

摘要

The method of calculating the distance between the 1. 1st and 2nd sending - receiving stations.2.1 sending - receiving stations in vehicle technology the usual way, are used as electronic key module or the appraisal device in order to verify key module the key it is not in the lock device. With meaningful verification number in the appraisal device correspondence unless the key module which is obtained is a vicinity of the appraisal device, operation stop of the lock device is obstructed. New method distance between two sending - receiving stations makes that it seeks with high degree of disassembly possible.2.2. with new method, one transmission signal occurs respectively in the sending - receiving station, is transmitted to the respective other sending - receiving station as the microwave pulse string which has specified pulse repetition frequency. Pulse repetition frequency of the transmission signal is different just the specified difference frequency which is smaller than pulse repetition frequency if possible mutually. In the sending - receiving station, pulse of the transmission signal which is transmitted from the respective sending - receiving station the agreement point in time which is suitable to the point in time when pulse of the reception signal which is received is piled up is required. Distance between the sending - receiving station is required from agreement point in time.