Single-line three-state signal sampling system of automobile instrument and sampling method thereof

A sampling system and automotive instrument technology, applied in vehicle components, transportation and packaging, etc., can solve problems such as inconvenient production control, and achieve the effects of facilitating production control, reducing functional abnormalities, and reducing instrument power consumption

Pending Publication Date: 2021-03-16
AEROSPACE HI TECH HLDG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the existing instrument signal sampling system can only collect one kind of signal, which leads to the need to change the device o

Method used

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  • Single-line three-state signal sampling system of automobile instrument and sampling method thereof
  • Single-line three-state signal sampling system of automobile instrument and sampling method thereof

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Experimental program
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Example Embodiment

[0050] Specific embodiment one: the following combination figure 1 and figure 2 This embodiment is described. A single-wire three-state signal sampling system for an automobile instrument described in this embodiment includes resistors R1-R16, capacitors C1-C4, switching diodes RD1-RD3, field effect transistor QT1 and triode KT1;

[0051] The sampling system includes three sampling modules, the three sampling modules correspond to three sampling ends and three external input ends, and the sampling ends of each sampling module correspond to the external input ends;

[0052] The three sampling terminals are one end of the resistor R3, one end of the resistor R11 and one end of the resistor R15, respectively.

[0053] The other end of resistor R3 is connected to one end of capacitor C1, one end of resistor R6 and one end of resistor R2 at the same time, the other end of capacitor C1 and the other end of resistor R6 are grounded at the same time, the other end of resistor R2 is ...

Example Embodiment

[0062] Specific embodiment two: the following combination figure 1 and figure 2 This embodiment will be described. The sampling method of a single-wire three-state signal sampling system of an automobile instrument described in this embodiment is implemented based on the sampling system, and the sampling method includes:

[0063] S1. The sampling system receives the configuration information of the car through the EOL online configuration system;

[0064] S2, the sampling system obtains the effective value of the signal state of the three external input terminals according to the configuration information obtained in S1, and stores the effective value of the signal state;

[0065] S3. The output end of the sampling system controls the "PULL_UP" port to connect or disconnect with the power supply at a fixed frequency;

[0066] S4. The three sampling terminals determine the states of the three external input terminals.

[0067] Further, the valid values ​​of the signal state...

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Abstract

The invention discloses a single-line three-state signal sampling system of an automobile instrument and a sampling method thereof, belongs to the technical field of automobile instruments, and aims at solving the problems that an existing instrument signal sampling system can only collect one signal, so that devices need to be changed on a PCB during collection state switching, and production control is inconvenient. The method comprises the steps that the sampling system receives configuration information of an automobile through an EOL online configuration system; the sampling system obtains signal state effective values of three external input ends and stores the signal state effective values; the output end of the sampling system controls the PULL_UP port to be connected with or disconnected from a power supply at a fixed frequency; and three sampling ends judge the states of the three external input ends. The method is used for collecting different level states of the automobileinstrument.

Description

technical field [0001] The invention relates to a single-line three-state signal sampling system of an automobile instrument and a sampling method thereof, belonging to the technical field of automobile instruments. Background technique [0002] With the development of automotive technology, different configurations of models need to use different controllers, and different controllers will output different signals to the car instrument. For example, to achieve the same function, the A controller outputs a high level to the instrument, the B controller outputs a low level to the instrument, and the C controller outputs a floating to the instrument. In this case, in order to meet the diversification of vehicle models, the combination meter has one type of vehicle configuration corresponding to one type of meter, and the same vehicle type corresponds to dozens of types of meters. [0003] Therefore, the current application technology has the following disadvantages: [0004]...

Claims

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Application Information

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IPC IPC(8): B60K35/00
CPCB60K35/00B60K2370/50
Inventor 邓雷王宇胡杨高原
Owner AEROSPACE HI TECH HLDG GROUP
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