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Signal sending method and device

A signal transmission and signal technology, applied in the field of in-vehicle terminals, can solve the problems of displaying wrong icons, high-speed video signal environment interference, etc., and achieve the effect of ensuring safety and improving accuracy.

Active Publication Date: 2021-04-13
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This application provides a signal sending method and device, which are used to solve the problem that the high-speed video signal is disturbed by the environment during the transmission process, and the wrong icon is displayed on the liquid crystal display

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  • Signal sending method and device
  • Signal sending method and device

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Embodiment Construction

[0044] The technical solution of the present application will be described below in conjunction with the embodiments of the present application and the accompanying drawings.

[0045] In order to facilitate the understanding of the technical solutions provided by the embodiments of the present application, the technical scenarios to which the technical solutions of the present application are applicable are firstly introduced.

[0046] The technical solution of the present application can be applied to technical scenarios of vehicle driving, such as vehicle driving, autonomous vehicles, smart vehicles, electric vehicles or new energy vehicles, and the like. Among them, in a vehicle driving system, such as figure 1 As shown, the car machine 110 and the instrument panel 120 are included, and the car machine 110 and the instrument panel 120 are connected by wires.

[0047] Wherein, the car machine 110 may be a cockpit domain controller (Cockpit Domain Controller, CDC). The inst...

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Abstract

The invention discloses a signal sending method. When a user triggers a first icon event, a system-on-chip SOC of a vehicle machine generates and sends a high-speed serial signal to an instrument screen, the high-speed serial signal is used for transmitting a window image corresponding to a first icon, and the instrument screen comprises a deserializer, a microprocessor MCU and a display screen. The method comprises the steps that an MCU receives a first image signal sent by a deserializer, and the first image signal is obtained after the high-speed serial signal is analyzed; and the MCU obtains a first check value according to the first image signal, and sends a second image signal to the display screen when detecting that the first check value is different from a second check value corresponding to the first icon. The method disclosed by the invention can be applied to an intelligent automobile, an automatic driving automobile, an electric automobile or a new energy automobile, and the second image signal is sent when it is detected that the first image signal is interfered, so that the display screen displays the normal window image containing the first icon, and the driving safety of a driver is improved.

Description

technical field [0001] The present application relates to the technical field of vehicle-mounted terminals, in particular to a signal sending method and device for controlling icons displayed on an instrument screen. Background technique [0002] In recent years, more and more equipment such as car dashboards and driving recorders use LCD panels to display images. Demand is also increasing. Because the key information of the car body needs to be displayed in real time on the LCD screen, such as turn signals, fault warning lights, gear lights, etc. If these information cannot be displayed correctly on the LCD screen, it may cause the driver to operate incorrectly and affect personal safety. , or even a traffic accident. [0003] Among them, the main reason for displaying error messages on the LCD screen is that the high-speed video signal transmitted from the vehicle host (or "vehicle machine") to the LCD screen is interfered. For example, the distance between the LCD scree...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/10B60K37/00B60R16/023
CPCH04N7/102B60K37/00B60R16/023B60K35/10B60K2360/111B60K2360/119B60K2360/1438B60K35/22B60K35/29B60K2360/199
Inventor 王少龙
Owner HUAWEI TECH CO LTD
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