CN105522926A - Automobile instrument system based on STM32 - Google Patents
Automobile instrument system based on STM32 Download PDFInfo
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- CN105522926A CN105522926A CN201410561317.2A CN201410561317A CN105522926A CN 105522926 A CN105522926 A CN 105522926A CN 201410561317 A CN201410561317 A CN 201410561317A CN 105522926 A CN105522926 A CN 105522926A
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Abstract
The invention discloses an automobile instrument system based on STM32. According to the invention, the automobile instrument system realizes powerful functions and also realizes data communication with other modules in an automobile. The automobile instrument system based on the STM32 comprises an STM32 controller module and a power supply module CAN bus and is characterized in that an external input end of the STM32 controller module is provided with a water temperature analog quantity input module, an oil quantity analog quantity input module, an A/D conversion module, a motor speed sensor module, an automobile speed sensor module and a pulse signal processing module; the water temperature analog quantity input module is connected with the A/D conversion module and then connected to the STM32 controller module; the oil quantity analog quantity input module is connected with the A/D conversion module and then connected to the STM32 controller module; the external output end of the STM32 controller module is provided with a four-way stepping motor driving module, an MAX232 module, LED indicating modules for steering, braking and the like as well as a power supply module; the four-way stepping motor driving module is connected with a four-way pointer display module; and the MAX232 module is connected with an LED driving and display module.
Description
Technical field
The invention belongs to vehicle electric field, relate to a kind of automobile instrument system based on STM32 particularly.
Background technology
Automobile instrument system makes chaufeur can understand traveling, the mode of operation of vehicle at any time, ensures that automobile can travel safely and reliably.Therefore the meter system of automobile needs that possess can exactly by the mode expressed intact such as various information numerals, word, figure of automobile out.The display mode of current auto meter mainly contains the auxiliary display of pointer display, numerical monitor, acousto-optic and figure, is commonplace and universal a kind of electronic automobile meter display mode.Display instrument based on stepping motor is the main display mode of auto meter in current and following a period of time.
In recent years, developing rapidly of automobile makes people have higher requirement to the traveling comfort of automobile and safety.Instrument is the interactive interface of people and automobile, for chaufeur provides the required information such as vehicle operating parameter, fault, mileage, is the requisite parts of each automobile.Instrument display directly perceived and attractive in appearance makes to drive still do not ride instead of walk required, and also become a part for comfortable life, the accurate and reliability of Parameter transfer is then directly connected to the safety of running car.Therefore, it is possible to there is a kind of instrument that is accurate and failure-free reception and registration automobile parameters to be very important.
Summary of the invention
The present invention is exactly for the problems referred to above, proposes a kind of novel electronic automobile meter system, based on the automobile instrument system of STM32; Electronic automobile meter systemic-function of the present invention is powerful, and the CAN communication interface that have employed automobile industry standard can be articulated in the CAN in car, achieves the data communication with other module in automobile.
For realizing above-mentioned purpose of the present invention, the present invention adopts following technical scheme.
A kind of automobile instrument system based on STM32 of the present invention, comprises STM32 controller module, power module CAN; Its structural feature is: described STM32 controller module external input terminals arranges and comprises water temperature Analog input mModule, oil mass Analog input mModule, A/D conversion module, motor speed sensor assembly, automotive speed sensor module, impulse singla processing module; Described water temperature Analog input mModule connects A/D conversion module and is connected to STM32 controller module, and described oil mass Analog input mModule connects A/D conversion module and is connected to STM32 controller module; The outside mouth of described STM32 controller module arranges and comprises four road driving stepper motor modules, MAX232 module, turns to and LED indicating module, the power module such as brake; Described four driving stepper motor model calling four road, road pointer display modules, described MAX232 model calling LED drives and display module.
As a preferred embodiment of the present invention, described STM32 controller module is ARMCortex-M3 kernel, its built-in 64K flash memory; Also comprise in addition: 10 timers, two 12 1-Msample/s A and D converters, two 12 figure place weighted-voltage D/A converters, two I2C interfaces, five USART interfaces and three SPI ports and 12 DMA passages.
As another kind of preferred version of the present invention, described four road driving stepper motor modules adopt stepping motor and VID66-06 tetra-motor drive ic of VID29-05.
Further, four pins of VID66-06 of the present invention the electric capacity of upper four 0.1 μ F.
As another kind of preferred version of the present invention, described impulse singla processing module adopts hall sensor acquisition pulse signal UI.
As another kind of preferred version of the present invention, described A/D conversion module adopts 12 high speed micropower sampling A and D converter ADS7816.
The invention has the beneficial effects as follows:
The Novel automobile instrument dish of the present invention's design is that stepping motor analog meter and Liquid Crystal Display LCD display are combined, these four parameters of the speed of a motor vehicle, engine speed, water temperature and oil mass are designed to respectively the virtual mouse instrument combine display on step motor type pointer meters and LCD, thus make a display equipment operational failure and another kind of equipment can also normally show, improve stability and the reliability of gauge panel.For warning messages such as steering indicating light, headlight, fog lamp, stoplight stop lamps, carry out indicating reminders by the LED on gauge panel, the multiple demand of client to modern automobile gauge panel can be met.
The present invention for control core, adopts the CAN communication interface of automobile industry standard can be articulated in the CAN in car with microprocessor STM32F103, realizes the data communication with other module in automobile.
Accompanying drawing explanation
Fig. 1 is a kind of automobile instrument system structural representation based on STM32 of the present invention.
Detailed description of the invention
As shown in Figure 1, be a kind of automobile instrument system structural representation based on STM32 of the present invention.Comprising STM32 controller module, power module CAN; Its structural feature is: described STM32 controller module external input terminals arranges and comprises water temperature Analog input mModule, oil mass Analog input mModule, A/D conversion module, motor speed sensor assembly, automotive speed sensor module, impulse singla processing module; Described water temperature Analog input mModule connects A/D conversion module and is connected to STM32 controller module, and described oil mass Analog input mModule connects A/D conversion module and is connected to STM32 controller module; The outside mouth of described STM32 controller module arranges and comprises four road driving stepper motor modules, MAX232 module, turns to and LED indicating module, the power module such as brake; Described four driving stepper motor model calling four road, road pointer display modules, described MAX232 model calling LED drives and display module.
Auto meter is responsible for the various data of record and display automobile, and wherein topmost have the speed of a motor vehicle, rotating speed, water temperature, oil mass, LED status etc.Automobile instrument panel designed by the present invention needs the information of processes and displays to mainly contain: the speed of a motor vehicle, engine speed, water temperature, oil mass and various switching value AIS.
The present invention take CAN as communication mechanism, and STM32 is core processor, completes the collection of information, process and display.Wherein water temperature, oil mass obtain analog signal respectively from respective sensor, then send into treater through A/D conversion, make treater control water temperature and oil mass display.Deflection, the speed of a motor vehicle and tach signal obtain by measuring respective sensor pulse signal, send into treater through signal transacting again, thus control the needle deflection of rotating speed and the speed of a motor vehicle, treater also sends to LCD LCD MODULE after these signal transacting by serial communication.Other on-off model (such as turn to, brake etc.) is obtained by CAN communication module, by giving treater again to process after bus transfer or other link process, and carries out corresponding operating mode instruction with LED, and then prompting or watchful chaufeur are noted.
Described CAN has a lot of characteristic: (1) have employed two-wire differential signal, and the quantity of communication protocol to node itself does not limit, and in bus, the quantity of node can dynamically change; (2) form of broadcast transmitting message, namely message can be received by all nodes simultaneously; (3) many main websites structure, each node equality, preceence determined by message ID; (4) content of each message is by identifier, and identifier is unique in a network; (5) there is error detection and the error handling mechanism of a set of complexity, as CRC detect, the automatic repeating transmission of the electromagnetism interference of interface, error message, the recovery of temporary error and the closedown of permanent error; (6) have employed twisted-pair feeder as bus media, transfer rate can reach 1Mbps, bus length <=40 rice; (7) have employed the position coded system that NRZ and position are filled, reduce the bit error ratio of message.
STM32 controller module of the present invention is ARMCortex-M3 kernel, its built-in 64K flash memory; Also comprise in addition: 10 timers, two 12 1-Msample/s A and D converters, two 12 figure place weighted-voltage D/A converters, two I2C interfaces, five USART interfaces and three SPI ports and 12 DMA passages.Described four road driving stepper motor modules adopt stepping motor and VID66-06 tetra-motor drive ic of VID29-05.Four pins of VID66-06 of the present invention the electric capacity of upper four 0.1 μ F.Described impulse singla processing module adopts hall sensor acquisition pulse signal UI.Described A/D conversion module adopts 12 high speed micropower sampling A and D converter ADS7816.
Claims (6)
1., based on an automobile instrument system of STM32, comprise STM32 controller module, power module CAN; It is characterized in that: described STM32 controller module external input terminals arranges and comprises water temperature Analog input mModule, oil mass Analog input mModule, A/D conversion module, motor speed sensor assembly, automotive speed sensor module, impulse singla processing module; Described water temperature Analog input mModule connects A/D conversion module and is connected to STM32 controller module, and described oil mass Analog input mModule connects A/D conversion module and is connected to STM32 controller module; The outside mouth of described STM32 controller module arranges and comprises four road driving stepper motor modules, MAX232 module, turns to and LED indicating module, the power module such as brake; Described four driving stepper motor model calling four road, road pointer display modules, described MAX232 model calling LED drives and display module.
2. a kind of automobile instrument system based on STM32 according to claim 1, is characterized in that: described STM32 controller module is ARMCortex-M3 kernel, its built-in 64K flash memory; Also comprise in addition: 10 timers, two 12 1-Msample/s A and D converters, two 12 figure place weighted-voltage D/A converters, two I2C interfaces, five USART interfaces and three SPI ports and 12 DMA passages.
3. a kind of automobile instrument system based on STM32 according to claim 1, is characterized in that: described four road driving stepper motor modules adopt stepping motor and VID66-06 tetra-motor drive ic of VID29-05.
4. a kind of automobile instrument system based on STM32 according to claim 3, is characterized in that: four pins of described VID66-06 the electric capacity of upper four 0.1 μ F.
5. a kind of automobile instrument system based on STM32 according to claim 1, is characterized in that: described impulse singla processing module adopts hall sensor acquisition pulse signal UI.
6. a kind of automobile instrument system based on STM32 according to claim 1, is characterized in that: described A/D conversion module adopts 12 high speed micropower sampling A and D converter ADS7816.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410561317.2A CN105522926A (en) | 2014-10-21 | 2014-10-21 | Automobile instrument system based on STM32 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410561317.2A CN105522926A (en) | 2014-10-21 | 2014-10-21 | Automobile instrument system based on STM32 |
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| CN105522926A true CN105522926A (en) | 2016-04-27 |
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| CN201410561317.2A Pending CN105522926A (en) | 2014-10-21 | 2014-10-21 | Automobile instrument system based on STM32 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721634A (en) * | 2020-12-04 | 2021-04-30 | 深圳市道和实业有限公司 | New energy automobile intelligent instrument control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721634A (en) * | 2020-12-04 | 2021-04-30 | 深圳市道和实业有限公司 | New energy automobile intelligent instrument control system |
| CN112721634B (en) * | 2020-12-04 | 2022-06-21 | 深圳市道和实业有限公司 | New energy automobile intelligent instrument control system |
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Application publication date: 20160427 |