VEHICLE OPERATION RECORDING SYSTEM

• Main Authors: KATAOKA RYOHEI, SAWADA SHINICHI, NIIMI HIDEKI, SUGIURA NORIHIKO, NISHI KOJI
• Format: Patent
• Language: English; Japanese
• Published: 10.08.2021
• Subjects: ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE; CHECKING-DEVICES; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATING RANDOM NUMBERS; GENERATION; PERFORMING OPERATIONS; PHYSICS; REGISTERING OR INDICATING THE WORKING OF MACHINES; SYSTEMS FOR STORING ELECTRIC ENERGY; TIME OR ATTENDANCE REGISTERS; TRANSPORTING; VEHICLES IN GENERAL; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR; VOTING OR LOTTERY APPARATUS

To detect termination of operation of a vehicle by detecting the switching to a storage battery from a main power supply device in a vehicle operation recording device externally provided with an auxiliary storage battery.SOLUTION: A vehicle operation recording system includes: a vehicle operation recording device that operates while receiving supply of driving power; a main power supply device capable of supplying the driving power at a predetermined voltage to the vehicle operation recording device while receiving power supplied from a power source provided on a vehicle; and an auxiliary power supply device that is provided outside the vehicle operation recording device and between the vehicle operation recording device and the main power supply device and can supply driving power at a voltage different from that of the main power supply device to the vehicle operation recording device while receiving power supplied from a storage battery. The auxiliary power supply device further includes a switching unit for switching a supply source of the driving power from the main power supply device to the auxiliary power supply device when the supply of the driving power to the vehicle operation recording device from the main power supply device is stopped. A control unit determines whether the supply source of the driving power is switched based on change in voltage of the driving power supplied to the vehicle operation recording device from the predetermined voltage.SELECTED DRAWING: Figure 1 【課題】車両運行記録装置の外部に補助用の蓄電池を設けたものにおいて、主電源装置から蓄電池への切り替えを検出することで車両の運行終了を検知する。【解決手段】車両運行記録システムは、駆動電力の供給を受けて動作する車両運行記録装置と、車両に設けられた電源から電力の供給を受けて所定電圧の駆動電力を車両運行記録装置に供給可能な主電源装置と、車両運行記録装置の外部でかつ車両運行記録装置と主電源装置との間に設けられ蓄電池からの電力の供給を受けて主電源装置とは異なる電圧の駆動電力を車両運行記録装置に供給可能な補助電源装置と、を備える。補助電源装置は、主電源装置から車両運行記録装置に対する駆動電力の供給が停止した場合に駆動電力の供給源を主電源装置から補助電源装置に切り替える切替部を更に有する。制御部は車両運行記録装置に供給される駆動電力の電圧が所定電圧から変化したことに基づいて駆動電力の供給源の切り替えを判定する。【選択図】図１