CN102902214B - Electro-hydraulic intelligent distributed controller - Google Patents
Electro-hydraulic intelligent distributed controller Download PDFInfo
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- CN102902214B CN102902214B CN201210394236.9A CN201210394236A CN102902214B CN 102902214 B CN102902214 B CN 102902214B CN 201210394236 A CN201210394236 A CN 201210394236A CN 102902214 B CN102902214 B CN 102902214B
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Abstract
The invention discloses an electro-hydraulic intelligent distributed controller which comprises a CPU (Central Processing Unit) circuit (1), an A/D (Analog-to-Digital) acquisition circuit (2), a digital output circuit (3), a digital input circuit (4), a power supply circuit (6) and a CAN (Controller Area Network) bus communication circuit (5), wherein the power supply circuit (6) is output to power supply input ends of other circuits; the CPU circuit (1) is connected with printed conductors of other circuits; an external power supply is converted by the power supply circuit (6) into three power supplies required by the controller; external input and communication data collected by the A/D acquisition circuit (2), the digital input circuit (4) and the CAN bus communication circuit (5) are logically processed and calculated by the CPU circuit (1); and closed-loop control on external load and bus communication are realized through the digital output circuit (3) and the CAN bus communication circuit (5). The controller with the automotive electronics and bus technology has a wider application prospect in the fields of special vehicles, engineering machinery and factory automation.
Description
Technical field
The present invention relates to a kind of electronic controller, particularly a kind of electric liquid intelligent distributed control system device.
Background technology
Most special vehicle, engineering machinery control system are all used centralized cpci bus controller as control core, centralized cpci bus controller function is concentrated and is complicated, and its composition mainly comprises CPU board, I/O plate, A/D plate, communication board, power panel and backboard etc.CPU board, I/O plate, A/D plate, communication board, power panel are connected with backboard by special connector.Due to centralized cpci bus controller control mode high concentration, local fault may cause the global failure of system, has reduced reliability and the expandability of system.
Summary of the invention
The object of the invention is to provide a kind of electric liquid intelligent distributed control system device, and the fault that solves centralized cpci bus controller part may cause the global failure of system, the problem that the reliability of system and expandability are low.
A kind of electric liquid intelligent distributed control system device, comprise: cpu circuit, A/D Acquisition Circuit, switching value output circuit, switching value input circuit and power circuit, CAN bus communication circuit, wherein, A/D Acquisition Circuit, comprising: filter unit, multiway analog switch, A/D converter; Switching value output circuit, comprising: isolating chip, electronic relay switch; CAN bus communication circuit, comprising: CAN bus driver, terminal resistance; Power circuit: comprising: K switch 1,5V insulating power supply and 12V insulating power supply.Cpu circuit adopts 32 single-chip microcomputers as control core.
Outside input power is connected with K switch 1 input end wire, the output terminal of power circuit is connected for electrical input printed conductor with cpu circuit, the output terminal of power circuit is connected for electrical input printed conductor with A/D Acquisition Circuit, the output terminal of power circuit is connected for electrical input printed conductor with switching value input circuit, the output terminal of power circuit is connected for electrical input printed conductor with switching value output circuit, the output terminal of power circuit is connected for electrical input printed conductor with CAN bus communication circuit, the SPI interface end of cpu circuit is connected with the SPI interface end printed conductor of A/D Acquisition Circuit, the digital input end of cpu circuit is connected with the output terminal printed conductor of switching value input circuit, the digital output end of cpu circuit is connected with the input end printed conductor of isolating chip, the CAN PORT COM of cpu circuit is connected with the PORT COM printed conductor of the CAN bus driver of CAN bus communication circuit.
The output terminal of K switch 1 is connected with the input end of 5V insulating power supply, the input end printed conductor of 12V insulating power supply respectively; The analog signal output of filter unit is connected with the input end printed conductor of multiway analog switch, and the output terminal of multiway analog switch is connected with the analog input end printed conductor of A/D converter; The digital output end of isolating chip is connected with the input end printed conductor of electronic relay switch; The output terminal of CAN bus driver is connected with terminal resistance printed conductor.
The power supply of outside input, after power circuit is converted to 5V, 12V and tri-kinds of power supplys of 24V, is the power supply of normally working of cpu circuit, A/D Acquisition Circuit, switching value output circuit, switching value input circuit and CAN bus communication circuit.A/D Acquisition Circuit by external analog signal after filter unit carries out filtering processing, selected to export A/D converter to by multiway analog switch, A/D converter, by simulating signal throughput and comparison, is converted to digital signal, export cpu circuit to, realize the collection to outside analog input signal.External switch semaphore inputs to switching value input circuit, through expansion I/O chip, realizes level conversion and logic latch, exports in real time external switch signal to cpu circuit.Switching value output circuit is isolated cpu circuit control output logic level signal after output by isolating chip, drives the break-make of electronic relay switch, realizes and transfers cpu circuit control output logic to load in load power voltage.CAN bus communication circuit by CAN bus driver and terminal resistance, is converted to the differential signal of outside CAN bus transfer and cpu circuit level signal altogether, by with being connected of the PORT COM of cpu circuit, realize control and access to bus.Hang oneself in the future A/D Acquisition Circuit, switching value input circuit, CAN bus communication circuit of cpu circuit processed the digital signal and the communication data that obtain, carry out logical process and calculating, be converted to the output control signal of gauge tap amount output circuit, CAN bus communication circuit, realize closed-loop control and bus communication to external loading.
The fault that this electric liquid intelligent distributed control system device has solved centralized cpci bus controller part may cause the global failure of system, the problem that the reliability of system and expandability are low.Being a kind of hi-tech parts that integrate automotive electronic technology, soft PLC technology, bussing technique, is a kind of control module for the outdoor gear such as special vehicle, engineering machinery.This electric liquid intelligent distributed control system device can be applied to special vehicle, engineering machinery and relevant factory automation field completely.
Brief description of the drawings
The composition frame chart of a kind of electric liquid intelligent distributed control system device of Fig. 1;
The power circuit composition frame chart of a kind of electric liquid intelligent distributed control system device of Fig. 2;
The A/D Acquisition Circuit composition frame chart of a kind of electric liquid intelligent distributed control system device of Fig. 3;
The switching value output circuit composition frame chart of a kind of electric liquid intelligent distributed control system device of Fig. 4;
The switching value input circuit composition frame chart of a kind of electric liquid intelligent distributed control system device of Fig. 5;
The CAN bus communication circuit composition frame chart of a kind of electric liquid intelligent distributed control system device of Fig. 6.
1.CPU circuit 2.A/D Acquisition Circuit 3. switching value output circuit 4. switching value input circuit 5.CAN bus communication circuit 6. power circuit 7.5V insulating power supply 8.12V insulating power supply 9. filter unit 10. multiway analog switch 11.A/D converter 12. isolating chip 13. electronic relay switch 14.CAN bus driver 15. expansion I/O chips
Embodiment
A kind of electric liquid intelligent distributed control system device, comprising: cpu circuit 1, A/D Acquisition Circuit 2, switching value output circuit 3, switching value input circuit 4 and power circuit 6, CAN bus communication circuit 5.Wherein, A/D Acquisition Circuit 2, comprising: filter unit 9, multiway analog switch 10, A/D converter 11; Switching value output circuit 3, comprising: isolating chip 12, electronic relay switch 13; CAN bus communication circuit 5, comprising: CAN bus driver 14, terminal resistance R; Power circuit 6: comprising: K switch 1,5V insulating power supply 7 and 12V insulating power supply 8.It is control core that cpu circuit 1 adopts 32 single-chip microcomputers.
Outside input power is connected with K switch 1 input end wire, the output terminal of power circuit 6 is connected for electrical input printed conductor with cpu circuit 1, the output terminal of power circuit 6 is connected for electrical input printed conductor with A/D Acquisition Circuit 2, the output terminal of power circuit 6 is connected for electrical input printed conductor with switching value input circuit 4, the output terminal of power circuit 6 is connected for electrical input printed conductor with switching value output circuit 3, the output terminal of power circuit 6 is connected for electrical input printed conductor with CAN bus communication circuit 5, the SPI interface end of cpu circuit 1 is connected with the SPI interface end printed conductor of A/D Acquisition Circuit 2, the digital input end of cpu circuit 1 is connected with the output terminal printed conductor of switching value input circuit 4, the digital output end of cpu circuit 1 is connected with the input end printed conductor of switching value output circuit 3 isolating chips 12, the CAN PORT COM of cpu circuit 1 is connected with the PORT COM printed conductor of the CAN bus driver 14 of CAN bus communication circuit 5.
The output terminal of K switch 1 is connected with the input end of 5V insulating power supply 7, the input end printed conductor of 12V insulating power supply 8 respectively; The analog signal output of filter unit 9 is connected with the input end printed conductor of multiway analog switch 10, and the output terminal of multiway analog switch 10 is connected with the analog input end printed conductor of A/D converter 11; The digital output end of isolating chip 12 is connected with the input end printed conductor of electronic relay switch 13; The output terminal of CAN bus driver 14 is connected with terminal resistance R printed conductor.
The power supply of outside input, after power circuit 6 is converted to 5V, 12V and tri-kinds of power supplys of 24V, for the normal work power supply of cpu circuit 1, A/D Acquisition Circuit 2, switching value output circuit 3, switching value input circuit 4 and CAN bus communication circuit 5.A/D Acquisition Circuit 2 is carried out external analog signal after filtering processing through filter unit 9, select to export to A/D converter 11 by multiway analog switch 10, A/D converter 11 is by simulating signal throughput and comparison, be converted to digital signal, export cpu circuit 1 to, realize the collection to outside analog input signal.External switch semaphore inputs to switching value input circuit 4, through expansion I/O chip 15, realizes level conversion and logic latch, exports in real time external switch signal to cpu circuit 1.Switching value output circuit 3 is controlled output logic level signal by cpu circuit 1 and is isolated after output by isolating chip 12, drives the break-make of electronic relay switch 13, realizes and transfers cpu circuit control output logic to load in load power voltage.CAN bus communication circuit 5 is by CAN bus driver 14 and terminal resistance R, the differential signal of outside CAN bus transfer is converted to and cpu circuit 1 level signal altogether, by with being connected of the PORT COM of cpu circuit 1, realize control and access to bus.Hang oneself in the future A/D Acquisition Circuit 2, switching value input circuit 4, CAN bus communication circuit 5 of cpu circuit 1 processed the digital signal and the communication data that obtain, carry out logical process and calculating, be converted to the output control signal of gauge tap amount output circuit 3, CAN bus communication circuit 5, realize closed-loop control and bus communication to external loading.
Claims (1)
1. an electric liquid intelligent distributed control system device, is characterized in that comprising: cpu circuit (1), A/D Acquisition Circuit (2), switching value output circuit (3), switching value input circuit (4) and power circuit (6), CAN bus communication circuit (5); Wherein, A/D Acquisition Circuit (2), comprising: filter unit (9), multiway analog switch (10), A/D converter (11); Switching value output circuit (3), comprising: isolating chip (12), electronic relay switch (13); CAN bus communication circuit (5), comprising: CAN bus driver (14), terminal resistance R; Power circuit (6): comprising: K switch 1,5V insulating power supply (7) and 12V insulating power supply (8); Cpu circuit (1) adopts 32 single-chip microcomputers;
Outside input power is connected with K switch 1 input end wire, the output terminal of power circuit (6) is connected for electrical input printed conductor with cpu circuit (1), the output terminal of power circuit (6) is connected for electrical input printed conductor with A/D Acquisition Circuit (2), the output terminal of power circuit (6) is connected for electrical input printed conductor with switching value input circuit (4), the output terminal of power circuit (6) is connected for electrical input printed conductor with switching value output circuit (3), the output terminal of power circuit (6) is connected for electrical input printed conductor with CAN bus communication circuit (5), the SPI interface end of cpu circuit (1) is connected with the SPI interface end printed conductor of A/D Acquisition Circuit (2), the digital input end of cpu circuit (1) is connected with the output terminal printed conductor of switching value input circuit (4), the digital output end of cpu circuit (1) is connected with the input end printed conductor of isolating chip (12), the CAN PORT COM of cpu circuit (1) is connected with the PORT COM printed conductor of CAN bus driver (14),
The output terminal of K switch 1 is connected with the input end of 5V insulating power supply (7), the input end printed conductor of 12V insulating power supply (8) respectively; The analog signal output of filter unit (9) is connected with the input end printed conductor of multiway analog switch (10), and the output terminal of multiway analog switch (10) is connected with the analog input end printed conductor of A/D converter (11); The digital output end of isolating chip (12) is connected with the input end printed conductor of electronic relay switch (13); The output terminal of CAN bus driver (14) is connected with terminal resistance R printed conductor;
The power supply of outside input, after power circuit (6) is converted to 5V, 12V and tri-kinds of power supplys of 24V, for the normal work power supply of cpu circuit (1), A/D Acquisition Circuit (2), switching value output circuit (3), switching value input circuit (4) and CAN bus communication circuit (5); A/D Acquisition Circuit (2) is carried out external analog signal after filtering processing through filter unit (9), select to export to A/D converter (11) by multiway analog switch (10), A/D converter (11) is by simulating signal throughput and comparison, be converted to digital signal, export cpu circuit (1) to, realize the collection to outside analog input signal; External switch semaphore inputs to switching value input circuit (4), through expansion I/O chip (15), realizes level conversion and logic latch, exports in real time external switch signal to cpu circuit (1); Switching value output circuit (3) is controlled output logic level signal by cpu circuit (1) and is isolated after output by isolating chip (12), drive the break-make of electronic relay switch (13), realize and transfer cpu circuit control output logic to load in load power voltage; CAN bus communication circuit (5) is by CAN bus driver (14) and terminal resistance R, the differential signal of outside CAN bus transfer is converted to and cpu circuit (1) level signal altogether, by with being connected of the PORT COM of cpu circuit (1), realize control and access to bus; Hang oneself in the future A/D Acquisition Circuit (2), switching value input circuit (4), CAN bus communication circuit (5) of cpu circuit (1) processed the digital signal and the communication data that obtain, carry out logical process and calculating, be converted to the output control signal of gauge tap amount output circuit (3), CAN bus communication circuit (5), realize closed-loop control and bus communication to external loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210394236.9A CN102902214B (en) | 2012-10-17 | 2012-10-17 | Electro-hydraulic intelligent distributed controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210394236.9A CN102902214B (en) | 2012-10-17 | 2012-10-17 | Electro-hydraulic intelligent distributed controller |
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| CN102902214A CN102902214A (en) | 2013-01-30 |
| CN102902214B true CN102902214B (en) | 2014-08-20 |
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| US10819136B2 (en) | 2019-02-15 | 2020-10-27 | Ford Global Technologies, Llc | System and method of adaptive high voltage transient control for external loads |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI250393B (en) * | 2004-09-10 | 2006-03-01 | Innolux Display Corp | Industrial control circuit |
| CN2791746Y (en) * | 2005-04-04 | 2006-06-28 | 苏州鹞鹰数据技术有限公司 | High-speed high-precision analogue sigual collection playback card |
| CN100544150C (en) * | 2007-08-22 | 2009-09-23 | 董右云 | Intelligentized electric energy management system assembled device |
| CN201281817Y (en) * | 2008-09-25 | 2009-07-29 | 卡斯柯信号有限公司 | Distributed locale controller based on LonWorks locale bus technology |
| CN201690477U (en) * | 2010-02-04 | 2010-12-29 | 烟台毅康电子科技有限公司 | Distributed controller based on Zigbee technology |
| CN202268901U (en) * | 2011-09-01 | 2012-06-06 | 珠海博威智能电网有限公司 | Distributed controller for simple communication |
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