Title:
POWER SUPPLY CONTROL CIRCUIT FOR ON-BOARD DEVICE, METHOD, ON-BOARD DEVICE, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/179594
Kind Code:
A1
Abstract:
The present invention relates to a power supply control circuit for an on-board device, a method, the on-board device, and a vehicle, applied to the technical field of automatic driving. The power supply control circuit comprises: a V2X main control unit, a navigation unit connected to the V2X main control unit, and a navigation antenna socket connected to the navigation unit, the navigation antenna socket being used for accessing an active antenna or a passive antenna for transmitting a navigation signal, and a capacitor being provided between the navigation unit and the navigation antenna socket; and a first power supply connected between the capacitor and the navigation antenna socket by means of a switch switching circuit and an inductor in sequence, wherein a control end of the switch switching circuit is used for receiving a first control signal from the V2X main control unit and switching the on-off state of the switch switching circuit on the basis of the first control signal, and the switch switching circuit is used for being in an on state when the active antenna is accessed and being in an off state when the passive antenna is accessed. The circuit can be applied to different installation environments and guarantee reliable transmission of a navigation signal.
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Inventors:
LI GUOFENG (CN)
ZHANG SHUMIN (CN)
DENG ZHIWEI (CN)
ZHANG SHUMIN (CN)
DENG ZHIWEI (CN)
Application Number:
PCT/CN2023/082751
Publication Date:
September 28, 2023
Filing Date:
March 21, 2023
Export Citation:
Assignee:
ZHIDAO NETWORK TECH BEIJING CO LTD (CN)
International Classes:
G01C21/26; G01S19/13; H01Q23/00
Foreign References:
| CN114379484A | 2022-04-22 | |||
| CN112909585A | 2021-06-04 | |||
| CN101819276A | 2010-09-01 | |||
| CN215954300U | 2022-03-04 | |||
| CN113237480A | 2021-08-10 | |||
| CN103022663A | 2013-04-03 | |||
| CN204681392U | 2015-09-30 | |||
| US20170032603A1 | 2017-02-02 | |||
| US5332977A | 1994-07-26 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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