The invention relates to an anti-power-off automobile data recorder which comprises a recorder chip and further comprises a first power supply chip, a second power supply chip, a power supply control chip and a power supply control chip, and the first power supply chip is electrically connected with a storage battery of an automobile and used for converting 12V direct current into 5V direct current; the second power supply chip is electrically connected with the first power supply chip and is used for converting 12V direct current into 1.5 V direct current, 1.8 V direct current and 3.3 V direct current, and the recorder chip is connected with the second power supply chip; the MCU is electrically connected with the first power supply chip and the second power supply chip; the logic control circuit is respectively connected with the MCU and the second power supply chip; and the super capacitor is respectively connected with the logic control circuit and the first power supply chip. According to the recorder, after the storage battery is disconnected, 5V is supplied to the rear end by the super capacitor, so that the system is not instantly powered off, the video is prevented from being damaged before an accident, the stability is good, the reliability is high, the service life of the super capacitor is prolonged, and the stability is good.
本发明涉及一种防断电行车记录仪,包括记录仪芯片,还包括:第一电源芯片,第一电源芯片与汽车的蓄电池电性连接,用于将12V直流电转换为5V直流电;第二电源芯片,第二电源芯片与第一电源芯片电性连接,用于将12V直流电转换为1.5V、1.8V和3.3V的直流电,记录仪芯片与第二电源芯片连接;MCU,MCU分别与第一电源芯片和第二电源芯片电性连接;逻辑控制电路,逻辑控制电路分别与MCU和第二电源芯片连接;及超级电容,超级电容分别与逻辑控制电路和第一电源芯片连接。该记录仪在蓄电池断开后由超级电容给后端供给5V,保证系统不会瞬间断电,保证事故前这段视频被损坏,稳定性好、可靠性高,延长了超级电容的使用寿命、稳定性好。
Anti-outage automobile data recorder and anti-outage method thereof
一种防断电行车记录仪及其防断电方法
2022-03-01
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte |
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