CN204576219U - Track operation vehicle PC control system - Google Patents
Track operation vehicle PC control system Download PDFInfo
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- CN204576219U CN204576219U CN201520188095.4U CN201520188095U CN204576219U CN 204576219 U CN204576219 U CN 204576219U CN 201520188095 U CN201520188095 U CN 201520188095U CN 204576219 U CN204576219 U CN 204576219U
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- 238000004891 communication Methods 0.000 claims abstract description 31
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- 230000003137 locomotive effect Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 5
- 230000010354 integration Effects 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 abstract 1
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- 238000010276 construction Methods 0.000 description 3
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- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000010705 motor oil Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a kind of track operation vehicle PC control system, comprise master control borad and man-machine interface, master control borad comprises controller, power circuit, analog to digital converter, digital to analog converter, input/output module, RS485 isolate transceiver module, CAN and isolate transceiver module; The signal that controller exports each module gathers, computing and process, by CAN and engine and wheel box communication, control the state of engine and wheel box, obtain the information from engine and wheel box simultaneously, shown in man-machine interface by RS485 communication.This Control System of Microcomputer integrates protection, measurement, Signal aspects and wagon control function; realize the thermoacoustic prime engine of rail vehicle and the centralized unified management of crucial vehicle parameter; the all unit modules of Successful integration vehicle body; effective prevention railcar exists and potential unsafe factor in operational process, realizes thermoacoustic prime engine and the safeguard protection of railcar.
Description
Technical field
The utility model relates to a kind of Control System of Microcomputer for track operation car.
Background technology
Track operation car is the main conveyance that the construction departments such as railway equipment maintenance, overhaul, capital construction execute the task, and is widely used.Traditional track operation vehicle control is by gathering throttle control handle opening amount signal, by its conversion process, give engine electronic control unit, realize the scheme that throttle rotating speed controls, adopts the gear shift of solenoid control wheel box and commutation, employing speed probe adds mechanical indicating pointer instrument and show running velocity in real time.Prior art exploitation control system and fail between wheel box and engine three well to merge, overall employing open-loop design, lack close-loop feedback amount, this is for the applied environment of rail vehicle, safety Design is far from being enough, is secondly exactly that intelligence degree is not high.Therefore, be necessary to design a kind of track operation car Control System of Microcomputer, implement communication safely and efficiently with engine, wheel box and reliably control driving conditions.
Utility model content
Technical problem to be solved in the utility model be overcome prior art above-mentioned deficiency and a kind of Control System of Microcomputer for track operation car is provided, realize thermoacoustic prime engine and the safeguard protection of railcar.
The technical scheme in the invention for solving the above technical problem is: track operation vehicle PC control system comprises master control borad and man-machine interface, and master control borad comprises controller, power circuit, analog to digital converter, digital to analog converter, input/output module, RS485 isolate transceiver module, CAN and isolate transceiver module; Power circuit is that Control System of Microcomputer is powered, and power circuit front end adds Electro Magnetic Compatibility circuit; Analog to digital converter converts continuous print analog voltage signal to discrete digital quantity; The digital signal that controller exports is converted to simulating signal and sends into engine electronic control unit by digital to analog converter; RS485 isolates transceiver module and realizes controller and man-machine interface both-way communication by optocoupler and RS485 transceiver; CAN isolates transceiver module and adopts optocoupler and CAN transceiver, is realized the communication of controller and engine electronic control unit, gear box control unit by CAN; The signal that controller exports each module gathers, computing and process, by CAN and engine and wheel box communication, control the state of engine and wheel box, obtain the information from engine and wheel box simultaneously, shown in man-machine interface by RS485 communication.
Preferred analog to digital converter comprises analog input clamp protection circuits, input buffer, the anti-aliasing analog filter of second order.
The controller improved is connected with locomotive brake cylinder pressure test device, and controller real-time sampling locomotive brake cylinder pressure signal, controller is according to the running status of pressure adjusting engine.
The master control borad of further improvement also comprises watchdog circuit.
The Control System of Microcomputer further improved also comprises warning device, and controller controls warning device according to the signal of sampling.
The man-machine interface improved is with fault processing module, and fault processing module receives the information of controller, to information data analyzing and processing.
With register, USB interface in the man-machine interface of further improvement.
Compared with prior art, the utility model has the advantage of: (1) adopts CAN to realize the full duplex communication of engine and wheel box and Control System of Microcomputer, controller controls the state of engine and wheel box according to the signal gathered, and obtain engine simultaneously, other operational factor of wheel box and locomotive, and shown by man-machine interface, in case of the situation such as fault or hypervelocity reminds driver by warning device, collection protection, measure, Signal aspects and wagon control function are in one, realize the thermoacoustic prime engine of rail vehicle and the centralized unified management of crucial vehicle parameter, the all unit modules of Successful integration vehicle body, effective prevention railcar exists and potential unsafe factor in operational process.(2) the Electro Magnetic Compatibility circuit, optocoupler etc. that increase, promote the antijamming capability of whole hardware circuit, strengthens railcar amount and control ground reliability, security.(3) analog to digital converter adopts clamp protection circuits, input buffer, the anti-aliasing analog filter of second order, the security of enhancing and the precision of data message.(4) controller is connected with locomotive brake cylinder pressure test device, according to the running status of brake-cylinder pressure signal adjustment engine, further ensures traffic safety, gets rid of the potential safety hazard of brake system.(5) man-machine interface is interior with fault processing module, register, USB interface etc., has further expanded function, has facilitated driver to understand analyzing stored handling failure information, can also be connected by USB with other equipment.
Accompanying drawing explanation
Fig. 1 is Control System of Microcomputer one-piece construction block diagram.
Fig. 2 is the theory diagram of master control borad.
Fig. 3 is analog to digital converter theory diagram.
Fig. 4 is process of self-test process flow diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment, the utility model is further illustrated.
Track operation vehicle control as shown in Fig. 1, wherein Control System of Microcomputer receives control signal or the instruction of driver controller and other functional module, and Control System of Microcomputer adopts the full duplex communication of SAE J1939 protocol realization engine and wheel box by CAN.
Control System of Microcomputer is made up of master control borad and man-machine interface two large divisions, master control borad is responsible for the analog signals that exports vehicle-mounted each functional module and on-off model gathers, computing and process, is then shown in man-machine interface by inner RS485 communication.Simultaneously, master control borad passes through the full duplex communication of CAN SAE J1939 protocol realization and engine and wheel box, Real-time Obtaining is from the every crucial vehicle parameter of engine and wheel box and failure message, as: diesel engine speed, diesel engine working hours, coolant water temperature, engine oil pressure, oil temperature, TOT Transmission Oil Temperature, wheel box rotating speed, wheel box direction etc., eventually through RS485 communication, man-machine interface shows in real time.
As shown in Figure 2, master control borad comprises controller to the structure of Control System of Microcomputer, power circuit, analog to digital converter, digital to analog converter, watchdog circuit, input/output module, RS485 isolate transceiver module, CAN and isolate transceiver module.
Be integrated with two CAN controller in controller chip, bit rate reaches as high as 1Mbps, filters relevant all protocol processes by CAN controller complete independently, do not need controller intervention with data input and data output.Controller, by specific function controller CAN controller, reads the data received, and writes the data that will send.
Power circuit provides power supply for functional module each in Control System of Microcomputer, and power circuit front end adds Electromagnetic Compatibility circuit, promotes the anti-electromagnetic interference capability of whole hardware circuit.
Analog to digital converter is used for converting continuous print analog voltage signal to discrete digital quantity, 14 conversion accuracies selected by analog to digital converter, support true bipolarity ± 10V input, 8 Channel Synchronous samplings are external, the integrated complete data acquisition solution of analog to digital converter: analog input clamp protection circuits (CLAMP), allows input overvoltage to reach ± 16.5V; There is the input buffer of 1M Ω analog input impedance, allow it to be directly connected with signal source or sensor; The anti-aliasing analog filter of second order.After digitizing conversion process, then by spi bus and controller communication, its principle as shown in Figure 3.
The Main Function of digital to analog converter is the E-Gas mouth digital signal exported from controller being converted to the coupling simulating signal that requires of throttle and sending into engine electronic control unit, thus realizes engine governed speed and control.Digital to analog converter preferentially selects four-way, 14 bit buffering voltage output types.
Watchdog circuit ensures that controller can reset after breaking down at work in time, strengthens the reliability of whole system.
Input/output module realizes the conversion of level and the isolation of signal by optocoupler, effectively prevents the introducing of external interference.
RS485 isolates transceiver module and comprises asynchronous receiving-transmitting transmitter, high speed photo coupling, RS485 transceiver.The internal communication of controller and man-machine interface adopts RS485 communication modes, and RS485 isolates transceiver module and adopts the mode of light-coupled isolation to realize both-way communication, effectively prevents the introducing of external interference.
CAN isolates transceiver module and comprises CAN interface, high speed photo coupling and CAN transceiver; CAN transceiver is the interface between CAN controller and physical bus; the complete compatible ISO11898 standard of this device; there is the function such as high input impedance, low current standby mode, Thermal protection, open failure protection, anti-instantaneous interference, slop control, be applicable to the serial communication of higher communication speed, good antijamming capability and high reliability CAN.
The Control System of Microcomputer course of work:
The accelerator opening amount signal of controller real-time sampling driver controller, by internal mode number conversion, after converting digital signal calculation process to, again through digital-to-analog conversion, convert the voltage signal meeting engine throttle control overflow to and send into engine electronic control unit, thus realize the control of railcar engine governed speed.The direction signal that controller real-time sampling driver controller sends, in conjunction with enable switch signal, commutation command is sent by CAN after Logic judgment, the moment of torsion simultaneously uploaded according to engine electronic control unit and tach signal, after logical process, repack, be sent to gear box control unit, thus realize automatic gear change function.
After controller powers on, automatically enter self-check program, adopt internal loopback closed loop self test mode, can each IO channel of automatic decision and communication whether normally set up, effectively prevent the potential safety hazard that fault causes.After self-inspection completes, system can show self-detection result and according to fault category and severity, whether automatic decision will enter normal mode of operation.Self-inspection flow process as shown in Figure 4, detects sample devices hardware, is detected and is exported control hardware, as arbitrary link detects fault, then carry out fault alarm, by the failure message after man-machine interface Graphics Processing by external signal sampling, tune, logical process.
Controller is by CAN Real-time Obtaining wheel box tach signal, in conjunction with wheel footpath and axle gear ratio, calculate real-time vehicle speed signal, show in man-machine interface on the one hand, compare, when the speed of a motor vehicle exceedes threshold points with the hypervelocity threshold points of software set on the other hand, controller sends control signal, the trigger alarm actuating of relay, sends sound and light alarm signal, reminds driver to carry out deceleration-operation; When the speed of a motor vehicle continues to rise to a certain setting value, controller continues to send sound and light alarm signal, simultaneously no matter now accelerator open degree how, controller fixing output idling voltage, forces engine to return idling, wheel box makes the return trip empty gear.
Controller real-time sampling locomotive brake cylinder pressure signal, when pressure signal exceedes software set threshold values, no matter now accelerator open degree how, and controller is fixing exports idling voltage, forces engine to return idling, and wheel box makes the return trip empty gear.
The data that controller is uploaded by CAN Real-time Collection engine electronic control unit, comprise engine speed, coolant water temperature, engine oil pressure, boost pressure, fuel consume, intake air temperature, oil temperature, cell voltage, working time etc. information, turn RS485 communication through CAN, man-machine interface shows; The data that controller is uploaded by CAN Real-time Collection wheel box, comprise the information such as oil temperature, wheel box rotating speed, wheel box direction, wheel box communication state, coupled motions state, bending moment operating state, gear shifting action state, gear error condition, turn RS485 communication through CAN, man-machine interface shows.The simulating signal that microcomputerized controller Real-time Collection current sensor, voltage sensor, fuel level sensor export and filter cleaner blocking switching signal, through conversion process, then through RS485 communication, man-machine interface shows.
Microcomputerized controller reads the vehicle parameter and failure message uploaded from engine and wheel box in real time by CAN, turn RS485 communication through CAN and be uploaded to man-machine interface, man-machine interface host computer procedure receives packet, according to communications protocol fixed between microcomputerized controller, analyzing and processing is carried out to packet, extract the raw data needed, raw data is delivered to the register of corresponding man-machine interface through process, again the data in register are issued the display of each control element, data are mail to Flash simultaneously and store.In addition host computer procedure also carries out Real-Time Monitoring RS485 communication state, response interface switching etc.So, realize reading vehicle parameter and the failure message in railcar traveling each second, and the parameter read is stored in flash storage, ensure the long-time ability storing data.Late time data covers the data in early stage successively.The data stored are copied out by USB flash disk etc. or import PC by USB interface, to check data, and analyzing failure cause.
Controller optionally reads failure code and the information of engine and wheel box in real time by CAN, in conjunction with fault category and severity, RS485 communication is turned through CAN, man-machine interface shows, export control signal simultaneously, the trigger alarm actuating of relay, sends sound and light alarm signal, reminds driver to note and provides foundation for troubleshooting.
Claims (7)
1. track operation vehicle PC control system, it is characterized in that: described Control System of Microcomputer comprises master control borad and man-machine interface, master control borad comprises controller, power circuit, analog to digital converter, digital to analog converter, input/output module, RS485 isolate transceiver module, CAN and isolate transceiver module;
Power circuit is that Control System of Microcomputer is powered, and power circuit front end adds Electro Magnetic Compatibility circuit;
Analog to digital converter converts continuous print analog voltage signal to discrete digital quantity;
The digital signal that controller exports is converted to simulating signal and sends into engine electronic control unit by digital to analog converter;
RS485 isolates transceiver module and realizes controller and man-machine interface both-way communication by optocoupler and RS485 transceiver;
CAN isolates transceiver module and adopts optocoupler and CAN transceiver, is realized the communication of controller and engine electronic control unit, gear box control unit by CAN;
The signal that controller exports each module gathers, computing and process, by CAN and engine and wheel box communication, control the state of engine and wheel box, obtain the information from engine and wheel box simultaneously, shown in man-machine interface by RS485 communication.
2. track operation vehicle PC control system according to claim 1, is characterized in that: analog to digital converter comprises analog input clamp protection circuits, input buffer, the anti-aliasing analog filter of second order.
3. track operation vehicle PC control system according to claim 1, it is characterized in that: controller is connected with locomotive brake cylinder pressure test device, controller real-time sampling locomotive brake cylinder pressure signal, controller is according to the running status of pressure adjusting engine.
4. track operation vehicle PC control system according to claim 1, is characterized in that: described master control borad also comprises watchdog circuit.
5. track operation vehicle PC control system according to claim 1, is characterized in that: described Control System of Microcomputer also comprises warning device, and controller controls warning device according to the signal of sampling.
6. track operation vehicle PC control system according to claim 1, is characterized in that: described man-machine interface is with fault processing module, and fault processing module receives the information of controller, to information data analyzing and processing.
7. track operation vehicle PC control system according to claim 1, is characterized in that: with register, USB interface in described man-machine interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520188095.4U CN204576219U (en) | 2015-03-31 | 2015-03-31 | Track operation vehicle PC control system |
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| CN201520188095.4U CN204576219U (en) | 2015-03-31 | 2015-03-31 | Track operation vehicle PC control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279656A (en) * | 2018-03-27 | 2018-07-13 | 杭州泓创新能源有限公司 | Vehicle traction intelligent controlling device |
| CN109062113A (en) * | 2018-09-03 | 2018-12-21 | 山海特种装备股份有限公司 | A kind of aircraft air source truck electrical control gear |
| CN109649434A (en) * | 2018-12-24 | 2019-04-19 | 中铁宝桥集团有限公司 | A kind of railcar intelligent maintenance system and method |
| CN111664889A (en) * | 2020-05-19 | 2020-09-15 | 神华新朔铁路有限责任公司 | Device, method and system for acquiring characteristic quantity of rail transit vehicle |
| CN111984578A (en) * | 2019-12-06 | 2020-11-24 | 深圳市安达自动化软件有限公司 | Controller with isolation and digital quantity expansion module thereof |
| CN113971877A (en) * | 2021-10-22 | 2022-01-25 | 湘潭大学 | Remote control system and remote control method for unmanned vehicle |
-
2015
- 2015-03-31 CN CN201520188095.4U patent/CN204576219U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279656A (en) * | 2018-03-27 | 2018-07-13 | 杭州泓创新能源有限公司 | Vehicle traction intelligent controlling device |
| CN108279656B (en) * | 2018-03-27 | 2023-07-25 | 杭州泓创新能源有限公司 | Intelligent control device for vehicle driving |
| CN109062113A (en) * | 2018-09-03 | 2018-12-21 | 山海特种装备股份有限公司 | A kind of aircraft air source truck electrical control gear |
| CN109649434A (en) * | 2018-12-24 | 2019-04-19 | 中铁宝桥集团有限公司 | A kind of railcar intelligent maintenance system and method |
| CN111984578A (en) * | 2019-12-06 | 2020-11-24 | 深圳市安达自动化软件有限公司 | Controller with isolation and digital quantity expansion module thereof |
| CN111984578B (en) * | 2019-12-06 | 2022-11-08 | 深圳市安达自动化软件有限公司 | Digital quantity expanding device of controller with isolation |
| CN111664889A (en) * | 2020-05-19 | 2020-09-15 | 神华新朔铁路有限责任公司 | Device, method and system for acquiring characteristic quantity of rail transit vehicle |
| CN113971877A (en) * | 2021-10-22 | 2022-01-25 | 湘潭大学 | Remote control system and remote control method for unmanned vehicle |
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Address after: 315021 Zhejiang Province, Ningbo Jiangbei District Yongjiang Industrial Park No. 138 vibration Yonglu Patentee after: NINGBO CRRC TIMES TRANSDUCER TECHNOLOGY Co.,Ltd. Address before: 315021 Zhejiang Province, Ningbo Jiangbei District Yongjiang Industrial Park No. 138 vibration Yonglu Patentee before: Ningbo CRRC Times Transducer Technology Co.,Ltd. |
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Granted publication date: 20150819 |