CN104460433B - System control method of full-liquid-crystal automobile combination meter - Google Patents
System control method of full-liquid-crystal automobile combination meter Download PDFInfo
- Publication number
- CN104460433B CN104460433B CN201410632843.3A CN201410632843A CN104460433B CN 104460433 B CN104460433 B CN 104460433B CN 201410632843 A CN201410632843 A CN 201410632843A CN 104460433 B CN104460433 B CN 104460433B
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- module
- combination meter
- mcu micro
- control method
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0421—Multiprocessor system
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/22—Pc multi processor system
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2637—Vehicle, car, auto, wheelchair
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Instrument Panels (AREA)
- User Interface Of Digital Computer (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention discloses a system control method of a full-liquid-crystal automobile combination meter. The full-liquid-crystal automobile combination meter comprises an MCU, a signal access module, an LED display module, a voice frequency prompting module, an ARM kernel microprocessor, a TFT display module, a video transmission module and a network transmission module. The MCU, the video transmission module and the network transmission module are in both-way connection with the ARM kernel microprocessor, and the TFT display module is connected with the output end of the ARM kernel microprocessor. According to the full-liquid-crystal automobile combination meter and the system control method, the ARM kernel microprocessor is additionally arranged on the basis of a traditional meter, driving to the TFT display module and both-way information transmission of the video transmission module and the network transmission module are achieved, and the functions of playing animations and videos and conducting remote control and data transmission through the network by a user are achieved; UI displaying of the full-liquid-crystal combination meter is achieved, and the requirement of function expansion of the full-liquid-crystal combination meter is met; the full-liquid-crystal automobile combination meter integrates the functions of a traditional combination meter and the functions of a full-liquid-crystal virtual meter, and platformization of system developments of the combination meter is achieved.
Description
Technical field
The present invention relates to vapour vehicle combined instrument technical field, and in particular to a kind of system of full liquid crystal automobile combination meter
Control method.
Background technology
It is used for each of display automobile as the automobile electronics safety and reliability extra high automobile combination meter of requirement
Performance state is planted, is the important information source that driver obtains vehicle-state.Automobile combination meter by various instrument, indicator,
Particularly driver is constituted with alarm lamp, the vehicle operating parameter information for needed for driver provides.With automotive electronics
The more and more fastidious eye of the development of technology and consumer, automobile combination meter experienced from traditional mechanical movement table, electrically
Development course of the formula instrument to full intelligent digital automobile combination instrument.Increasing producer be devoted to exploitation fashion, it is dazzling with
And the combination instrument with huge presentation of information and handoff functionality.
Although combination instrument in the market has all gathered mileometer, engine speed indicator, oil pressure gauge, water temperature
The function of the conventional modules such as table, fuel gauge, storage battery scale, but can not still realize consumer to animation, video playback with
And online etc. demand, the expanded function in later stage can not be met.
The content of the invention
The present invention is in order to overcome the above not enough, there is provided a kind of full liquid with animation, video playback and function of surfing the Net
The system control method of brilliant automobile combination meter.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of full liquid crystal automobile combination meter, including
MCU micro-control units, signal access module, LED display module and audio prompt module, wherein, the signal access module with
The input of the MCU micro-control units is connected, the LED display module, audio prompt module and MCU micro-control units it is defeated
Go out end to be connected, also including ARM cores microprocessor, TFT display modules, video transmission module and network transmission module, the MCU is micro-
Control unit, video transmission module and network transmission module are bi-directionally connected with ARM core microprocessors, the TFT display modules
Output end with ARM core microprocessors is connected, and to realize combination instrument system platform, meets following combination instrument development trend
Large scale TFT combination instruments provide system scheme.
Further, the MCU micro-control units receive the letter by A/D sampling modules, GPIO interface or CAN
The signal of number AM access module.
Further, the ARM cores output end of microprocessor is connected with the audio prompt module, realizes that combination instrument is rich
Rich audio output function.
Further, the MCU micro-control units drive LED display module by GPIO interface or data communication protocol.
Further, the ARM cores microprocessor carries out data biography with MCU micro-control units by data communication protocol
Pass.
Further, the data communication protocol includes IIC, SCI, SPI and CAN protocol.
Further, the MCU micro-control units are controlled using RTOS real time operating systems.
Further, the ARM cores microprocessor is controlled using QNX embedded real-time operating systems.
The present invention also provides a kind of system control method of full liquid crystal automobile combination meter includes following steps：
S1：Initialization MCU micro-control units and ARM core microprocessors；
S2：MCU micro-control units obtain signal access module data message；
S3：MCU micro-control units drive LED display module, audio prompt mould after being processed the data message
Block is pointed out, while sending corresponding data to ARM cores microprocessor 5；
S4：ARM cores microprocessor receive MCU micro-control units data, while with video transmission module and network transmission
Module carries out bidirectional data transfers, then drives TFT display modules to carry out real-time update to the data for receiving and shows；
S5：ARM cores microprocessor starts finger daemon, the dynamic all processes of monitoring system and thread, found the abnormal situation
And repaired.
The system control method of the full liquid crystal automobile combination meter that the present invention is provided, increases by the basis of conventional instrument
The ARM core microprocessors for having added, realize to the driving of TFT display modules and with video transmission module and network transmission module
Bidirectional transfer of information, meet user carries out remote control and data biography to animation, the playing function of video and by network
Defeated function；The UI for realizing full liquid crystal combination instrument shows and its functions expanding requirement demand.The present invention combines traditional group
The function of instrument and full liquid crystal virtual instrument demand is closed, the hardware and software platform of combination instrument system development is realized, the system platform is simultaneous
Hold various embedded real-time operating systems, substantially reduce the construction cycle of system, while improve the security of system and leading to
The property used.
Brief description of the drawings
Fig. 1 is the structural representation of full liquid crystal automobile combination meter of the invention；
Fig. 2 is full liquid crystal automobile combination meter system control method flow chart of the invention.
Shown in Fig. 1：1st, MCU micro-control units；2nd, signal access module；3rd, LED display module；4th, audio prompt mould
Block；5th, ARM cores microprocessor；6th, TFT display modules；7th, video transmission module；8th, network transmission module.
Specific embodiment
The present invention is described in detail below in conjunction with the accompanying drawings：
As shown in figure 1, the invention provides a kind of full liquid crystal automobile combination meter, including MCU micro-control units 1, signal
AM access module 2, LED display module 3, audio prompt module 4, ARM cores microprocessor 5, TFT display modules 6, video transmission module
7 and network transmission module 8.
Signal access module 2 is connected with the input of MCU micro-control units 1, and signal access module 2 is by Vehicular system middling speed
The current work state informations of module such as degree sensor, fuel level sender, temperature sensor and battery pass to MCU micro-controls
Unit processed 1, MCU micro-control units 1 receive the number of signal access module 2 by A/D sampling modules, GPIO interface or CAN
It is believed that breath.
LED display module 3, audio prompt module 4 are connected with the output end of MCU micro-control units 1, and LED display module 3 is wrapped
Include steering indicating light, seat belt light and air bag indicator lamp, original of the MCU micro-control units 1 according to reasonable distribution hardware resource
Then, LED display module 3 is driven by GPIO interface or data communication protocol, controls the break-make of above-mentioned alarm lamp,
Wherein, data communication protocol includes IIC, SCI, SPI and CAN protocol.Audio prompt module 4 realizes reminding turning and safety belt not
The functions such as system's prompting；MCU micro-control units 1 realize the driving to audio prompt module 4 using GPIO interface or PWM.
Two-way company between ARM cores microprocessor 5 and MCU micro-control units 1, video transmission module 7 and network transmission module 8
Connect, TFT display modules 6 are connected to the output end of ARM cores microprocessor 5；MCU micro-control units 1 and ARM cores microprocessor 5 it
Between data transfer is carried out by data communication protocol, the information such as speed, water temperature, mileage are sent to ARM cores microprocessor 5, ARM
Core microprocessor 5 drives TFT display modules 6 to show above- mentioned information in real time, wherein data communication protocol include IIC,
SCI, SPI and CAN protocol.Animation and video that ARM cores microprocessor 5 is wanted to play by the accessing user of video transmission module 7,
And drive TFT display modules 6 to play out, additionally, user can be easy to pass through by the access network based on ethernet of network transmission module 8
Network carries out remote control and data transfer.Preferably, the output end of ARM cores microprocessor 5 is also connected with audio prompt module 4,
Driving audio prompt module 4 carries out relative alarm prompting.
Preferably, MCU micro-control units 1 are controlled using RTOS real time operating systems, and ARM cores microprocessor 5 is used
QNX embedded real-time operating systems are controlled, and RTOS real time operating systems complete the collection of data and place needed for combination instrument
Data interaction is carried out with ARM cores microprocessor 5 after reason, QNX embedded real-time operating systems is effectively reduced in data processing
On CPU usage, substantially increase its service behaviour, QNX embedded real-time operating systems are using round-robin and preferential
Level seizes the scheduling mode being combined, real-time, while using microkernel architecture, make all drivings, separated using with kernel,
Realize conventional combination instrument to full liquid crystal combination instrument without jump smooth transition so that reality combination instrument system hardware and software platform, together
The real-time performance of the full liquid crystal instruments of Shi Zengqiang, portable energy, improve system security reliability energy.
The present invention also provides a kind of system control method of full liquid crystal automobile combination meter, including following steps, such as
Shown in Fig. 2：
S1：Initialization MCU micro-control units 1 and ARM cores microprocessor 5, wherein MCU micro-control units 1 use RTOS realities
When operating system be controlled, main in the step to realize that system electrification is initialized, ARM cores microprocessor 5 is embedded using QNX
Real time operating system is controlled, and the step is substantially carried out Installed System Memory and CPU initialization；
S2：MCU micro-control units 1 obtain the data message of signal access module 2, and specific MCU micro-control units 1 pass through
A/D sampling modules, GPIO interface or CAN receive Vehicular system medium velocity sensor, the fuel oil of the output of signal access module 2
The current work state information of the modules such as fuel level sensor, temperature sensor and battery；
S3：1 pair of data message of MCU micro-control units drives LED display module 3, audio prompt after being processed
Module 4 is pointed out, while send corresponding data to ARM cores microprocessor 5, specifically, LED display module 3 is received accordingly
Data simultaneously realize the instruction function of steering indicating light, seat belt light and air bag indicator lamp, and audio prompt module 4 is received accordingly
Data simultaneously realize the function such as reminding turning and the prompting of safety belt system；
S4：ARM cores microprocessor 5 receives the data of MCU micro-control units 1, while being passed with video transmission module 7 and network
Defeated module 8 carries out bidirectional data transfers, then drives the data of 6 pairs of receptions of TFT display modules to carry out real-time update and shows；Specifically
, animation and video that ARM cores microprocessor 5 is wanted to play by the accessing user of video transmission module 7, and drive TFT to show
Module 6 is played out, while user can be easy to remotely be controlled by network by the access network based on ethernet of network transmission module 8
System and data transfer；
S5：ARM cores microprocessor 5 starts finger daemon, the dynamic all processes of monitoring system and thread, found the abnormal situation
And repaired.
In sum, the system control method of the full liquid crystal automobile combination meter that the present invention is provided, by conventional instrument
On the basis of the ARM cores microprocessor 5 that increased, realize to the driving of TFT display modules 6 and with video transmission module 7 and
The bidirectional transfer of information of network transmission module 8, meet user is carried out far to animation, the playing function of video and by network
Process control and the function of data transfer；The UI for realizing full liquid crystal combination instrument shows and its functions expanding requirement demand.This hair
The bright function of combining conventional combination instrument and full liquid crystal virtual instrument demand, realizes the platform of combination instrument system development
Change, the compatible various embedded real-time operating systems of the system platform substantially reduce the construction cycle of system, while improve being
The security and versatility of system.
Although being illustrated to embodiments of the present invention in specification, these implementation methods are intended only as prompting,
Should not limit protection scope of the present invention.It is equal that various omission, substitution, and alteration are carried out without departing from the spirit and scope of the present invention
Should be comprising within the scope of the present invention.
Claims (8)
1. a kind of system control method of full liquid crystal automobile combination meter, the combination instrument includes that MCU micro-control units, signal connect
Enter module, LED display module and audio prompt module, wherein, the signal access module is defeated with the MCU micro-control units
Enter end to be connected, the LED display module, audio prompt module are connected with the output end of MCU micro-control units, it is characterised in that
Also including ARM cores microprocessor, TFT display modules, video transmission module and network transmission module, the MCU micro-control units,
Video transmission module and network transmission module are bi-directionally connected with ARM core microprocessors, and the TFT display modules are micro- with ARM cores
The output end of processor is connected；
The control method includes following steps：
S1：Initialization MCU micro-control units and ARM core microprocessors；
S2：MCU micro-control units obtain signal access module data message；
S3：MCU micro-control units drive LED display module, audio prompt module to enter after being processed the data message
Row prompting, while sending corresponding data to ARM core microprocessors；
S4：ARM cores microprocessor receive MCU micro-control units data, while with video transmission module and network transmission module
Bidirectional data transfers are carried out, is then driven TFT display modules to carry out real-time update to the data for receiving and is shown；
S5：ARM cores microprocessor starts finger daemon, the dynamic all processes of monitoring system and thread, found the abnormal situation and goes forward side by side
Row is repaired.
2. the system control method of full liquid crystal automobile combination meter according to claim 1, it is characterised in that the MCU
Micro-control unit receives the signal of the signal access module by A/D sampling modules, GPIO interface or CAN.
3. the system control method of full liquid crystal automobile combination meter according to claim 1, it is characterised in that the ARM
Core output end of microprocessor is also connected with the audio prompt module.
4. the system control method of full liquid crystal automobile combination meter according to claim 1, it is characterised in that the MCU
Micro-control unit drives LED display module by GPIO interface or data communication protocol.
5. the system control method of full liquid crystal automobile combination meter according to claim 1, it is characterised in that the ARM
Core microprocessor carries out data transfer with MCU micro-control units by data communication protocol.
6. the system control method of the full liquid crystal automobile combination meter according to claim 4 or 5, it is characterised in that described
Data communication protocol includes IIC, SCI, SPI and CAN protocol.
7. the system control method of full liquid crystal automobile combination meter according to claim 1, it is characterised in that the MCU
Micro-control unit is controlled using RTOS real time operating systems.
8. the system control method of full liquid crystal automobile combination meter according to claim 1, it is characterised in that the ARM
Core microprocessor is controlled using QNX embedded real-time operating systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632843.3A CN104460433B (en) | 2014-11-11 | 2014-11-11 | System control method of full-liquid-crystal automobile combination meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410632843.3A CN104460433B (en) | 2014-11-11 | 2014-11-11 | System control method of full-liquid-crystal automobile combination meter |
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| Publication Number | Publication Date |
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| CN104460433A CN104460433A (en) | 2015-03-25 |
| CN104460433B true CN104460433B (en) | 2017-05-24 |
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| CN201410632843.3A Expired - Fee Related CN104460433B (en) | 2014-11-11 | 2014-11-11 | System control method of full-liquid-crystal automobile combination meter |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527429A (en) * | 2014-11-19 | 2015-04-22 | 上海德科电子仪表有限公司 | Full-liquid crystal virtual instrument of car |
| CN105955110A (en) * | 2016-05-06 | 2016-09-21 | 浙江中科领航汽车电子有限公司 | System architecture of all-liquid crystal automobile instrument |
| CN109624709A (en) * | 2017-10-09 | 2019-04-16 | 上海方堰实业有限公司 | A kind of full spectrum information shared system of new-energy automobile |
| CN109624708A (en) * | 2017-10-09 | 2019-04-16 | 上海方堰实业有限公司 | A kind of intelligent gateway instrument for new-energy automobile |
| CN109995628A (en) * | 2018-01-03 | 2019-07-09 | 联合汽车电子有限公司 | Automobile-used domain controller |
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| CN1811345A (en) * | 2006-03-01 | 2006-08-02 | 上海燃料电池汽车动力***有限公司 | Whole liquid crystal display wide screen combined instrument for vehicle |
| CN201152756Y (en) * | 2008-02-18 | 2008-11-19 | 上海信耀电子有限公司 | Complete digital intelligent automobile combined instrument based on CAN bus |
| CN102267385A (en) * | 2010-06-03 | 2011-12-07 | 上海荣乐汽车电子有限公司 | Integrated digital automobile instrument |
| CN103713906A (en) * | 2014-01-09 | 2014-04-09 | 上汽通用五菱汽车股份有限公司 | Intelligent instrument development platform and method |
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2014
- 2014-11-11 CN CN201410632843.3A patent/CN104460433B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811345A (en) * | 2006-03-01 | 2006-08-02 | 上海燃料电池汽车动力***有限公司 | Whole liquid crystal display wide screen combined instrument for vehicle |
| CN201152756Y (en) * | 2008-02-18 | 2008-11-19 | 上海信耀电子有限公司 | Complete digital intelligent automobile combined instrument based on CAN bus |
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| CN104460433A (en) | 2015-03-25 |
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