CN205523713U - Automobile instrument system based on CAN bus - Google Patents
Automobile instrument system based on CAN bus Download PDFInfo
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- CN205523713U CN205523713U CN201620322141.XU CN201620322141U CN205523713U CN 205523713 U CN205523713 U CN 205523713U CN 201620322141 U CN201620322141 U CN 201620322141U CN 205523713 U CN205523713 U CN 205523713U
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- automobile instrument
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Abstract
The utility model discloses an automobile instrument system based on CAN bus, including microcontroller, engine speed collection module, car light signal collection module, bus transceiver, water temperature sensor, speed sensor, fuel quantity sensor, switching value acquisition circuit, multiway switch, AD conversion module, clock source, display, instrument and motor collection module 0. The utility model discloses a motormeter integration is got up to CAN bus technique, forms the digitalizer table, and required line is few, and the precision is high, sensitivity is good, can independently select to take still demonstration output of instrument output according to the big or small reasonable layout display device of car department's accuse panel, rationally arranges the space.
Description
Technical field
This utility model relates to a kind of automobile instrument system, a kind of automobile instrument system based on CAN, belongs to industrial instrument field.
Background technology
Automobile instrument is the communication for information interface of driver and automobile, mainly includes speed, engine speed, water temperature, oil mass and various switching value or alarm signal, and automobile instrument has important function to automotive safety and economy run.In recent years, along with the development of automotive electronic technology, automobile instrument display information is also continuously increased, and traditional mechanical pointer-type automobile combination meter is owing to line is various, take up room big, cannot meet existing automobile and use demand.
Summary of the invention
This utility model purpose is to provide a kind of automobile instrument system based on CAN, and this automobile instrument system line is numerous less, can take up room with reasonable distribution.
To achieve these goals, a kind of automobile instrument system based on CAN of this utility model, including microcontroller, engine speed acquisition module, car light signal acquisition module, bus transceiver, cooling-water temperature sensor, vehicle speed sensor, fuel-quantity transducer, switch quantity acquisition circuit, variable connector, A/D modular converter, clock source, display and motor control module；Described engine speed acquisition module and car light signal acquisition module gather engine speed and car light signal respectively, and mail to CAN by bus transceiver；The information that cooling-water temperature sensor and fuel-quantity transducer gather enters variable connector, and the preprocessed circuit of information that vehicle speed sensor gathers enters variable connector；Microprocessor controls variable connector and A/D modular converter complete A/D conversion；Information that A/D is changed by microcontroller, the switch state information gathered by switch quantity acquisition circuit, the information that received by bus transceiver mail to display or motor control module, motor control module control instrument motor, clock source provides clock for microcontroller.
This utility model passes through CAN technology, is integrated by automobile instrument, forms digital instrumentation, required line is few, and precision is high, sensitivity is good, can control panel size reasonable layout display device according to automobile department, instrument output is taked still to show output, reasonable arrangement space from main separation.
Accompanying drawing explanation
Fig. 1 is this utility model theory diagram；
Fig. 2 is this utility model pretreatment schematic block circuit diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is described further.
As shown in Figure 1, a kind of automobile instrument system based on CAN, including microcontroller, engine speed acquisition module, car light signal acquisition module, bus transceiver, cooling-water temperature sensor, vehicle speed sensor, fuel-quantity transducer, switch quantity acquisition circuit, variable connector, A/D modular converter, clock source, display and motor control module；Described engine speed acquisition module and car light signal acquisition module gather engine speed and car light signal respectively, and mail to CAN by bus transceiver；The information that cooling-water temperature sensor and fuel-quantity transducer gather enters variable connector, and the preprocessed circuit of information that vehicle speed sensor gathers enters variable connector；Microprocessor controls variable connector and A/D modular converter complete A/D conversion；Information that A/D is changed by microcontroller, the switch state information gathered by switch quantity acquisition circuit, the information that received by bus transceiver mail to display or motor control module, motor control module control instrument motor, clock source provides clock for microcontroller.
This utility model passes through CAN technology, is integrated by automobile instrument, forms digital instrumentation, required line is few, and precision is high, sensitivity is good, can control panel size reasonable layout display device according to automobile department, instrument output is taked still to show output, reasonable arrangement space from main separation.
Further, described pretreatment circuit includes RC filter circuit, transistor amplifier and schmidt shaping circuit, and input signal exports after RC filtering, audion amplification, Schmidt's shaping.
Further, described display includes LCD display and light-emitting diode display, and mileage information uses LCD to show, switching value or alarm signal use LED to show.
Claims (3)
1. an automobile instrument system based on CAN, it is characterized in that, including microcontroller, engine speed acquisition module, car light signal acquisition module, bus transceiver, cooling-water temperature sensor, vehicle speed sensor, fuel-quantity transducer, switch quantity acquisition circuit, variable connector, A/D modular converter, clock source, display and motor control module；Described engine speed acquisition module and car light signal acquisition module gather engine speed and car light signal respectively, and mail to CAN by bus transceiver；The information that cooling-water temperature sensor and fuel-quantity transducer gather enters variable connector, and the preprocessed circuit of information that vehicle speed sensor gathers enters variable connector；Microprocessor controls variable connector and A/D modular converter complete A/D conversion；Information that A/D is changed by microcontroller, the switch state information gathered by switch quantity acquisition circuit, the information that received by bus transceiver mail to display or motor control module, motor control module control instrument motor, clock source provides clock for microcontroller.
Automobile instrument system based on CAN the most according to claim 1, it is characterized in that, described pretreatment circuit includes RC filter circuit, transistor amplifier and schmidt shaping circuit, and input signal exports after RC filtering, audion amplification, Schmidt's shaping.
Automobile instrument system based on CAN the most according to claim 2, it is characterised in that described display includes LCD display light-emitting diode display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322141.XU CN205523713U (en) | 2016-04-18 | 2016-04-18 | Automobile instrument system based on CAN bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322141.XU CN205523713U (en) | 2016-04-18 | 2016-04-18 | Automobile instrument system based on CAN bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205523713U true CN205523713U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620322141.XU Expired - Fee Related CN205523713U (en) | 2016-04-18 | 2016-04-18 | Automobile instrument system based on CAN bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205523713U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926699A (en) * | 2017-03-31 | 2017-07-07 | 重庆小康工业集团股份有限公司 | The control display methods and its control system of Digital Automobile combination instrument |
-
2016
- 2016-04-18 CN CN201620322141.XU patent/CN205523713U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926699A (en) * | 2017-03-31 | 2017-07-07 | 重庆小康工业集团股份有限公司 | The control display methods and its control system of Digital Automobile combination instrument |
| CN106926699B (en) * | 2017-03-31 | 2019-12-03 | 重庆小康工业集团股份有限公司 | The control display methods and its control system of Digital Automobile combination instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170418 |