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Time synchronization method and device for vehicle-mounted equipment as well as time synchronization system

A technology for in-vehicle equipment and time synchronization, applied in the field of Internet of Vehicles, it can solve the problems of long startup time and inability of in-vehicle equipment to synchronize time information in time, so as to achieve the effect of optimizing user experience

Inactive Publication Date: 2019-02-12
FAFA AUTOMOBILE (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application provides a method, device and system for synchronizing the time of vehicle-mounted equipment to solve the problem in the prior art that the device for synchronizing the time of vehicle-mounted equipment takes a long time to start and the vehicle-mounted equipment cannot synchronize time information in time

Method used

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  • Time synchronization method and device for vehicle-mounted equipment as well as time synchronization system
  • Time synchronization method and device for vehicle-mounted equipment as well as time synchronization system
  • Time synchronization method and device for vehicle-mounted equipment as well as time synchronization system

Examples

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Embodiment 1

[0041] see Figure 1a , what is shown in the figure is a schematic diagram of the time synchronization process between the vehicle-mounted device time synchronization device and the vehicle-mounted terminal in the prior art. In the prior art, when the vehicle-mounted terminal applies for time synchronization from the vehicle-mounted device time synchronization device, the vehicle-mounted terminal TS1 sends a time synchronization request Sync to the vehicle-mounted equipment time synchronization device, and the vehicle-mounted equipment time synchronization device receives the above-mentioned time synchronization request Sync at TM2 time. Since the vehicle-mounted equipment time synchronization device is cold-started or after the user adjusts the time, it often needs to After a period of time, the time of the vehicle-mounted device synchronization time can stabilize. After the time is stabilized, the time stamp Delay_Resq is fed back to the vehicle-mounted terminal at TM3, and th...

Embodiment 2

[0089] The embodiment of the present application also provides a device for synchronizing the time of the on-board equipment, such as Figure 5 shown, including:

[0090] The first receiving module 51 receives the first time synchronization request sent by the vehicle-mounted device;

[0091] The first sending module 52, in response to the first time synchronization request, sends a first timestamp to the vehicle-mounted device, where the first timestamp is generated based on stored time information;

[0092] The time update module 53 updates the time information according to the received time setting information;

[0093] The second receiving module 54 receives the second time synchronization request sent by the vehicle-mounted device;

[0094] The second sending module 55 generates a second time stamp according to the updated time information, and sends the second time stamp to the on-vehicle device.

[0095] Specifically, the device for synchronizing time of vehicle-moun...

Embodiment 3

[0110] The embodiment of the present application also provides a synchronous time system, such as Figure 6 shown, including:

[0111] The device 61 and at least one vehicle-mounted device 62 for synchronizing time of any vehicle-mounted device as described in Embodiment 2;

[0112] The at least one vehicle-mounted device 62 is used for:

[0113] Send a time synchronization request to the device 61 for synchronizing time of the vehicle-mounted equipment;

[0114] Update the time information stored locally according to the received timestamp.

[0115] In this solution, the time synchronization request sent by the on-vehicle device may include the time when the time synchronization request is sent. In this step, the locally stored time information is updated according to the received timestamp, which can make the locally stored time information consistent with the time stored in the device for synchronizing the time of the on-board equipment, thereby making the time displayed...

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Abstract

The invention relates to the field of terminals, in particular to a time synchronization method an device for vehicle-mounted equipment as well as a time synchronization system, used for solving the problem that multiple vehicle-mounted equipment can not timely synchronize time in the prior art. The method comprises the following steps: receiving a first time synchronization request sent by vehicle-mounted equipment; responding to the first time synchronization request, and sending a first time stamp to the vehicle-mounted equipment; according to received time setting information, updating time information; receiving a second time synchronization request sent by the vehicle-mounted equipment; and according to the updated time information, generating a second time stamp, and sending the second time stamp to the vehicle-mounted equipment. The technical scheme provided by the invention can enable time of each vehicle-mounted terminal to be unified with time information of a time synchronization device of the vehicle-mounted equipment before the time synchronization device of the vehicle-mounted equipment is completely started, so that a passenger in a vehicle acquires the same time information by virtue of different vehicle-mounted terminals, user experience is optimized, and the passenger can learn a local time close to the correct time.

Description

technical field [0001] The present application relates to the field of Internet of Vehicles, and in particular to a method and device for synchronizing time of vehicle equipment and a system for synchronizing time. Background technique [0002] Existing vehicles often include multiple in-vehicle devices, and different in-vehicle devices can provide information for the driver, co-pilot, and passengers respectively. These vehicle-mounted devices are often connected with a time synchronization module (TelematicsBOX, T-BOX) to realize information exchange. [0003] Specifically, the car may include a copilot screen, a central control screen, and an instrument screen. These three display screens belong to different vehicle-mounted terminals respectively, and each vehicle-mounted terminal is connected with T-BOX. When the various devices in the car are cold-started, it will take a while for the T-BOX to fully start. Before the full start-up, each vehicle-mounted terminal cannot ...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04L7/00H04J3/06
CPCH04J3/0638H04L7/0016H04W56/001
Inventor 成凯
Owner FAFA AUTOMOBILE (CHINA) CO LTD
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