This vehicle-mounted device is provided with the following: a positioning unit that outputs a positioning result indicating the current location of a vehicle on the basis of a positioning signal received from an artificial satellite; a positioning-result memory unit that associates positioning results with times and stores said positioning results; and a processing unit that uses past positioning results stored in the positioning-result memory unit and the current positioning result from the positioning unit to detect spoofing on the basis of whether or not the movement of the vehicle satisfies prescribed criteria.
Vehicle-mounted device and spoofing detection method
2016-02-10
Patent
Electronic Resource
English
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