CN104483911A - Electrical power monitoring and transmission system based on CAN bus - Google Patents
Electrical power monitoring and transmission system based on CAN bus Download PDFInfo
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- CN104483911A CN104483911A CN201410580447.0A CN201410580447A CN104483911A CN 104483911 A CN104483911 A CN 104483911A CN 201410580447 A CN201410580447 A CN 201410580447A CN 104483911 A CN104483911 A CN 104483911A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 63
- 230000005540 biological transmission Effects 0.000 title claims abstract description 36
- 238000004891 communication Methods 0.000 claims abstract description 80
- 238000012545 processing Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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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
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4185—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by the network communication
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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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- Manufacturing & Machinery (AREA)
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- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses an electrical power monitoring and transmission system based on a CAN bus. The system comprises the CAN bus, data acquisition units, a data monitoring unit and a communication unit. The data acquisition units and the communication unit are connected to the same CAN bus; and the data monitoring unit is connected with the communication unit. The CAN bus is used for realizing two-way transmission and multiple-direction transmission of data; the data acquisition units are used for collecting the data of the electrical equipment in real time; the data monitoring unit is used for being responsible for receiving, storing and displaying monitoring and controlling data of various electrical equipment; and the communication unit allows a communication mode to be established between the CAN bus and the data monitoring unit and is used for realizing two-way transmission of the data between the CAN bus and the data monitoring unit. The communication unit comprises a PCI communication module, a processing module and a CAN control module. The system can carry out real-time monitoring and controlling on current, voltage and temperature in the high voltage environment and provides decision basis for equipment maintenance and repairing.
Description
Technical field
The present invention relates to power system monitoring control field, especially relate to the power monitoring transmission system based on CAN.
Background technology
In recent years, the long-distance monitor and control of electric system is developed rapidly and is subject to the growing interest about department technology personnel such as operation, management, scientific researches.Wherein embedded technology with it flexibly, function the feature such as cutting can obtain the widespread use of electric system.And fieldbus Monitoring and Controlling is embedded technology is applied to the typical technology of electric power monitoring control system.
Field bus technique becomes the electric power monitoring opertaing device of single dispersion into network node, take fieldbus as tie, and they are connected into information of can communicating with each other, jointly complete the network system of automatic control task.At present, the electric power monitoring control information transmission technology based on bus adopts RS-232 and RS-485 usually, but these technical characterstics exist following drawback: 1) system relative closure, lacks unified specification and communication protocol; 2) monitor control system is primary and secondary structure, network can only have a host node, cannot form how main redundant system, and when host node breaks down, system just cannot be run; 3) baud rate is lower, and transmission range is short, can not meet requirement of real-time.
Summary of the invention
The object of the invention is the deficiency overcoming existing electric power monitoring control system, power monitoring transmission system based on CAN is provided, this system carries out real-time inspection and control to electric current, voltage and temperature under hyperbaric environment, for plant maintenance, maintenance provide decision-making foundation.
Object of the present invention is achieved through the following technical solutions: based on the power monitoring transmission system of CAN, comprise CAN, data acquisition unit, data monitoring unit and communication unit, described data acquisition unit and communication unit are all connected in same CAN, described data monitoring unit is connected with described communication unit, wherein: described CAN is for realizing transmitted in both directions, the multi-party transport of data; Described data acquisition unit is used for the data such as the voltage of Real-time Collection power equipment, electric current and temperature, and sends data to described CAN; Described data monitoring unit is used for the Monitoring and Controlling data being responsible for receiving, store and show various power equipment; Described communication unit makes to set up communication pattern between described CAN and described data monitoring unit, for realizing the two-way transmission of data between CAN and data monitoring unit; Described communication unit comprises PCI communication module, processing module and CAN control module, the transmission that described PCI communication module is used for pci bus data controls and receives to control, described CAN control module is for the treatment of the transmission of data in CAN and reception, described processing module is used for being responsible for the digital communication between PCI communication module and CAN control module and coordinated management, and conversion is applicable to Frame or the control frame of CAN communication or PCI communication.In the present invention, by the setting of data monitoring unit, the power equipment information that data acquisition unit can be obtained is shown to monitoring personnel in real time, monitoring personnel is had field condition and understands intuitively, convenient to the control at scene.Use CAN building network, based on the feature that C AN bus independence is strong, native system increases a device node or removes the normal operation of a device node on overall network and can not produce any impact in universal serial bus, add it and have the advantages that traffic rate is high and data communication is real-time, the monitor network thus based on CAN has powerful independence, stability and free performance.
Further, described data acquisition unit comprises sensing module and control module, described sensing module is for gathering the current/voltage between each line circuit of power equipment and each line, and the convert information of sensing module collection is the Frame that CAN can be transmitted by described control module.In the present invention, the data of data acquisition unit acquires transfer to data monitoring unit by CAN.
Further, described CAN control module comprises CAN module, Logic control module and SPI communication module, described CAN module is connected with described CAN, described SPI communication module is connected with described processing module, described Logic control module is connected with SPI communication module respectively with CAN module, described CAN module is for the treatment of the acceptance of data in CAN and transmission, described SPI communication module is for accepting the steering order of processing module, and described Logic control module is for controlling the operation of described control module.In order to adapt to the needs of the distribution of electric power monitoring control system height, data interconnection, monitor control system needs abundant communication module.In this Monitoring and Controlling transmission system, communication unit is with module, can realize the high-speed transfer of data, can use as Monitoring and Controlling, greatly facilitates enforcement and the application of network.
Compared with existing monitoring transmission technology, the present invention has following beneficial effect: in the present invention, use CAN building network, based on the feature that C AN bus independence is strong, native system increases a device node or removes the normal operation of a device node on overall network and can not produce any impact in universal serial bus, add it and have the advantages that traffic rate is high and data communication is real-time, this monitor network has powerful independence, stability and free performance.The another setting by data acquisition unit, data monitoring unit and communication unit, the present invention can be formed and a kind ofly collect dispersion, two-way, interconnection, the transmission of interaction and supervisory system.Native system is unified arranges net, and cost is low, connects easily, is easy to form stable electric power monitoring net control.
Accompanying drawing explanation
Fig. 1 is the structural representation of the power monitoring transmission system specific embodiment based on CAN of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
As shown in Figure 1, based on the power monitoring transmission system of CAN, comprise CAN, data acquisition unit, data monitoring unit and communication unit, described data acquisition unit and communication unit are all connected in same CAN, described data monitoring unit is connected with described communication unit, wherein: described CAN is for realizing transmitted in both directions, the multi-party transport of data; Described data acquisition unit is used for the data such as the voltage of Real-time Collection power equipment, electric current and temperature, and sends data to described CAN; Described data monitoring unit is used for the Monitoring and Controlling data being responsible for receiving, store and show various power equipment; Described communication unit makes to set up communication pattern between described CAN and described data monitoring unit, for realizing the two-way transmission of data between CAN and data monitoring unit.
In the present invention, all unit in whole system are all articulated in same CAN, form ATM layer relationsATM in logic.CAN belongs to bus type serial communication network, and it adopts multiple host pattern to run, and can realize the mutual backup functionality of many equipment multisystem.As long as any device systems node on that network can send information data mutually to any node, device systems economize on electricity data distribute formation different level priority rank according to sequential.CAN transfer bus adopts CRC check mode usually, has very strong error correction, makes native system to carry out reliable data communication.The power equipment information of data acquisition unit can be shown to monitoring personnel by data monitoring unit in real time, and monitoring personnel are got information about field condition, convenient to the control at scene.Communication unit is inserted in for connecting the equipment of CAN on data monitoring unit, and it is mainly used in realizing CAN communication and data monitoring unit communication.Communication unit mainly adopts event driven manner to realize its function, main flow generally: enter work major cycle after initialization, self-inspection, wait for event trigger, by event trigger call inner each functional module.When the present invention applies, by the current/voltage between each line circuit of data acquisition unit acquires power equipment and each line, again by CAN by this information transmission to communication unit, be transferred to the staff of data monitoring unit side again by communication unit, complete the monitoring of the voltage to power equipment, electric current and each several part temperature.
The communication unit of the present embodiment comprises PCI communication module, processing module and CAN control module, the transmission that described PCI communication module is used for pci bus data controls and receives to control, described CAN control module is for the treatment of the transmission of data in CAN and reception, described processing module is used for being responsible for the digital communication between PCI communication module and CAN control module and coordinated management, and conversion is applicable to Frame or the control frame of CAN communication or PCI communication.For adapting to the needs of the distribution of electric power monitoring control system height, data interconnection, monitor control system needs the communication unit of rich interface.Data monitoring unit has pci interface usually, and in this supervisory system, communication unit is with the PCI communication module matched, for realizing data monitoring unit communication.To this, PCI9054 chip can be adopted, this chip can realize complete PCI main control module and object module function, and the pci bus interface of complexity is converted to relative simple user interfaces, and it can realize all hardware interface signal required by PCI specification and configuration space registers.Communication unit is in the center of general frame in this transmission system, and need have powerful performance and good stability as communication unit most important parts processing module, can adopt arm processor.When MCU receives data that PCI communication module gives and control character is known, carry out after judgements process, being converted to Frame or the control frame of CAN, giving CAN control module, automatically completed the transmission of a frame by CAN control module.When MCU receives Frame or control frame that CAN communication interface gives, after carrying out judgement process, be converted to Frame or the control frame of pci bus, give PCI communication module, automatically completed to the transmission of data monitoring unit by PCI communication module.
Embodiment 2
The present embodiment has made following restriction further on the basis of embodiment 1: described data acquisition unit comprises sensing module and control module, described sensing module is for gathering the current/voltage between each line circuit of power equipment and each line, and the convert information of sensing module collection is the Frame that CAN can be transmitted by described control module.In the present invention, sensing module and control module are equivalent to input end and the output terminal of data acquisition unit respectively, by input end by the information feed back that gathers to control module, then be the Frame that CAN can be transmitted by control module by this convert information, by information transmission in CAN.
Embodiment 3
The present embodiment has made following restriction further on the basis of embodiment 1 or 2: described CAN control module comprises CAN module, Logic control module and SPI communication module, described CAN module is connected with described CAN, described SPI communication module is connected with described processing module, described Logic control module is connected with SPI communication module respectively with CAN module, described CAN module is for the treatment of the acceptance of data in CAN and transmission, described SPI communication module is for accepting the steering order of processing module, described Logic control module is for controlling the operation of described CAN control module.In the present invention, CAN control module is connected with processing module by SPI communication module, the various read write command of receiving processing module and steering order.
Above content is the further description done the present invention in conjunction with concrete preferred implementation, can not assert that the specific embodiment of the present invention is confined to these explanations.For general technical staff of the technical field of the invention, not departing from other embodiments drawn under technical scheme of the present invention, all should be included in protection scope of the present invention.
Claims (3)
1. based on the power monitoring transmission system of CAN, it is characterized in that: comprise CAN, data acquisition unit, data monitoring unit and communication unit, described data acquisition unit and communication unit are all connected in same CAN, described data monitoring unit is connected with described communication unit, wherein:
Described CAN is for realizing transmitted in both directions, the multi-party transport of data;
Described data acquisition unit is used for the data such as the voltage of Real-time Collection power equipment, electric current and temperature, and sends data to described CAN;
Described data monitoring unit is used for the Monitoring and Controlling data being responsible for receiving, store and show various power equipment;
Described communication unit makes to set up communication pattern between described CAN and described data monitoring unit, for realizing the two-way transmission of data between CAN and data monitoring unit;
Described communication unit comprises PCI communication module, processing module and CAN control module, the transmission that described PCI communication module is used for pci bus data controls and receives to control, described CAN control module is for the treatment of the transmission of data in CAN and reception, described processing module is used for being responsible for the digital communication between PCI communication module and CAN control module and coordinated management, and conversion is applicable to Frame or the control frame of CAN communication or PCI communication.
2. the power monitoring transmission system based on CAN according to claim 1, it is characterized in that: described data acquisition unit comprises sensing module and control module, described sensing module is for gathering the current/voltage between each line circuit of power equipment and each line, and the convert information of sensing module collection is the Frame that CAN can be transmitted by described control module.
3. the power monitoring transmission system based on CAN according to claim 1 and 2, it is characterized in that: described CAN control module comprises CAN module, Logic control module and SPI communication module, described CAN module is connected with described CAN, described SPI communication module is connected with described processing module, described Logic control module is connected with SPI communication module respectively with CAN module, described CAN module is for the treatment of the acceptance of data in CAN and transmission, described SPI communication module is for accepting the steering order of processing module, described Logic control module is for controlling the operation of described CAN control module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410580447.0A CN104483911A (en) | 2014-10-27 | 2014-10-27 | Electrical power monitoring and transmission system based on CAN bus |
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| CN201410580447.0A CN104483911A (en) | 2014-10-27 | 2014-10-27 | Electrical power monitoring and transmission system based on CAN bus |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090217279A1 (en) * | 2005-08-08 | 2009-08-27 | Robert Bosch Gmbh | Method and Device for Controlling a Computer System |
| CN202042031U (en) * | 2011-04-19 | 2011-11-16 | 盛隆电气集团有限公司 | Electric fire hazard monitoring device based on controller area network (CAN) bus |
| CN102355394A (en) * | 2011-07-21 | 2012-02-15 | 大唐移动通信设备有限公司 | Method and device for performing data transmission control for a plurality of paths of controller area network (CAN) buses |
| CN102591300A (en) * | 2012-03-02 | 2012-07-18 | 上海大学 | Real time monitoring device of movable engineering machinery and equipment |
| CN103001233A (en) * | 2012-10-24 | 2013-03-27 | 株洲变流技术国家工程研究中心有限公司 | Wireless remote monitoring system and wireless remote monitoring method for reactive compensation device |
| CN203645407U (en) * | 2013-12-19 | 2014-06-11 | 陕西银河网电科技有限公司 | Intelligent electric power monitoring system of power transformation and distribution station |
-
2014
- 2014-10-27 CN CN201410580447.0A patent/CN104483911A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090217279A1 (en) * | 2005-08-08 | 2009-08-27 | Robert Bosch Gmbh | Method and Device for Controlling a Computer System |
| CN202042031U (en) * | 2011-04-19 | 2011-11-16 | 盛隆电气集团有限公司 | Electric fire hazard monitoring device based on controller area network (CAN) bus |
| CN102355394A (en) * | 2011-07-21 | 2012-02-15 | 大唐移动通信设备有限公司 | Method and device for performing data transmission control for a plurality of paths of controller area network (CAN) buses |
| CN102591300A (en) * | 2012-03-02 | 2012-07-18 | 上海大学 | Real time monitoring device of movable engineering machinery and equipment |
| CN103001233A (en) * | 2012-10-24 | 2013-03-27 | 株洲变流技术国家工程研究中心有限公司 | Wireless remote monitoring system and wireless remote monitoring method for reactive compensation device |
| CN203645407U (en) * | 2013-12-19 | 2014-06-11 | 陕西银河网电科技有限公司 | Intelligent electric power monitoring system of power transformation and distribution station |
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