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Method for synchronizing sound of alarm lamp of full liquid crystal instrument and display of liquid crystal screen

A liquid crystal instrument, display synchronization technology, applied in the direction of instruments, computer control, simulators, etc., can solve the problem of serial communication message overload, etc., to achieve good display effect

Pending Publication Date: 2022-04-01
AEROSPACE HI TECH HLDG GROUP
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  • Abstract
  • Description
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Problems solved by technology

[0003] Aiming at the problem of serial communication message overload in the existing alarm light sound and liquid crystal screen display synchronization, the invention provides a method for synchronizing the alarm light sound of a full liquid crystal instrument and the liquid crystal screen display

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  • Method for synchronizing sound of alarm lamp of full liquid crystal instrument and display of liquid crystal screen
  • Method for synchronizing sound of alarm lamp of full liquid crystal instrument and display of liquid crystal screen

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Embodiment Construction

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0012] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0014] The method for synchronizing the sound of the warning light of the full liquid crystal instrument and the...

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Abstract

The invention discloses a full liquid crystal instrument alarm lamp sound and liquid crystal screen display synchronization method, solves the problem of serial port communication message overload in existing alarm lamp sound and liquid crystal screen display synchronization, and belongs to the technical field of automobile instruments. The method comprises the following steps: step 1, establishing connection between a display CPU and a main control CPU; 2, the master control CPU sends a clock alignment control message to the display CPU every second, and the master control CPU and the display CPU are synchronously aligned in time; 3, the master control CPU sends an alarm lamp state message to a display CPU, the display CPU determines the flickering frequency Hertz of the alarm lamp according to the alarm lamp state message, and when a clock alignment control message is received, display operation is carried out according to the flickering frequency Hertz of the alarm lamp; meanwhile, the master control CPU which sends the clock alignment control message controls the sound operation of the alarm lamp of the full liquid crystal instrument according to the flickering frequency Hertz of the alarm lamp, synchronization is achieved, only one message is sent no matter how many flickering times are required, the blocking phenomenon is avoided, and the display effect is good.

Description

technical field [0001] The invention relates to a method for synchronizing the alarm light sound of a full liquid crystal instrument and the display of a liquid crystal screen, belonging to the technical field of automobile instruments. Background technique [0002] With the continuous maturity of full liquid crystal instrument technology, the market share of full liquid crystal instrument continues to increase, and the increase of hesitation LCD screen makes the chip of traditional instrument unable to meet the demand. It is generally divided into logic processing chips and LCD display rendering chips. The sound of the instrument is designed to be controlled by a logic chip, and the display is controlled by an LCD chip, so in terms of synchronization, two chips need to communicate to solve it. The existing logic chip and the LCD chip use on-off messages to transmit data. For example, if you need to flash 5 times, you need to send 5 messages. If you transmit data through on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
Inventor 吴雨王大伟韩季秋杨春赵旭琦
Owner AEROSPACE HI TECH HLDG GROUP
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