PROBLEM TO BE SOLVED: To attain a navigation computation device that allows for a theft discrimination.SOLUTION: A navigation computation device 20 comprises: a control unit 21; a theft monitor unit 22; an RF processing unit 23; a storage unit 24; a switch unit 25; and a sensor unit 30. The theft monitor unit 22 and sensor unit 30 are configured to have power steadily supplied, and the theft monitor unit 22 is configured to detect a change in output of the sensor unit 30 when there is no trigger signal, and output a theft monitor signal. The switch unit 25 is configured to be electrified by the theft monitor signal, and supply power to the control unit 21. When started up by reception of the theft monitor signal, the control unit 21 is configured to execute a satellite navigation computation using a positioning signal received by the RF processing unit 23, and execute an inertia navigation computation using the output of the sensor unit 30. The control unit 21 outputs a theft detection signal on the basis of the result of the satellite navigation computation and the result of the inertia navigation computation.

    【課題】盗難判別が可能な航法演算装置を実現する。【解決手段】航法演算装置20は、制御部21、盗難監視部22、RF処理部23、記憶部24、スイッチ部25、および、センサ部30を備える。盗難監視部22およびセンサ部30には定常的に電源が供給されており、盗難監視部22は、トリガ信号が無いときに、センサ部30の出力の変化を検出して、盗難監視信号を出力する。スイッチ部25は盗難監視信号によって導通し、制御部21に電源が供給される。制御部21は、盗難監視信号を受けて起動すると、RF処理部23で受信した測位信号を用いた衛星航法演算と、センサ部30の出力を用いた慣性航法演算を実行する。制御部21は、衛星航法演算の結果と慣性航法演算の結果に基づいて、盗難検出信号を出力する。【選択図】図1


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    Title :

    NAVIGATION COMPUTATION DEVICE, THEFT NOTIFICATION DEVICE, THEFT NOTIFICATION SYSTEM AND THEFT DETECTION METHOD


    Additional title:

    航法演算装置、盗難報知装置、盗難報知システム、および盗難検出方法


    Contributors:

    Publication date :

    2015-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01S RADIO DIRECTION-FINDING , Funkpeilung



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