To provide a technique that can achieves a suitable on-vehicle device in terms of accurately sensing a lost article in a vehicle or in terms of easiness of enabling the lost article to be sensed.SOLUTION: An on-vehicle device 14 performs radio communication with a terminal of an occupant in a vehicle 10 (a user terminal 12) and makes an electric field intensity holding part 34 memorize electric field intensity in the radio communication with the user terminal 12. The on-vehicle device 14 determines whether the user terminal 12 is in the vehicle 10 or not, on the basis of a value concerning first electric field intensity memorized in the electric field intensity holding part 34 when a state of power supply of the vehicle 10 is brought into a predetermined state and a value concerning second electric field intensity memorized in a memorizing part when the occupant got off from the vehicle 10. The on-vehicle device 14 makes a predetermined notification to the occupant, when determining that the user terminal 12 is in the vehicle 10.SELECTED DRAWING: Figure 1
【課題】車両内の忘れ物を精度よく検知する観点、または、忘れ物検知の実現容易性の観点から好適な車載装置を実現する技術を提供する。【解決手段】車載装置14は、車両10の乗員の端末(ユーザ端末12)と無線通信を行い、ユーザ端末12との無線通信における電界強度を電界強度保持部34に記憶させる。車載装置14は、車両10の電源の状態が所定の状態になった際の電界強度保持部34に記憶された第1の電界強度に関する値と、車両10から乗員が降車した際の記憶部に記憶された第2の電界強度に関する値とに基づいて、ユーザ端末12が車両10内に存在するか否かを判定する。車載装置14は、車両10が車両10内に存在すると判定された場合、乗員に所定の通知を行う。【選択図】図1
ON-VEHICLE DEVICE, LOST ARTICLE NOTIFICATION METHOD AND COMPUTER PROGRAM
車載装置、忘れ物通知方法およびコンピュータプログラム
2023-06-08
Patent
Electronic Resource
Japanese
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