CN201773300U - Centralized monitoring device in direct-current power system - Google Patents
Centralized monitoring device in direct-current power system Download PDFInfo
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- CN201773300U CN201773300U CN2010202591889U CN201020259188U CN201773300U CN 201773300 U CN201773300 U CN 201773300U CN 2010202591889 U CN2010202591889 U CN 2010202591889U CN 201020259188 U CN201020259188 U CN 201020259188U CN 201773300 U CN201773300 U CN 201773300U
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Abstract
A centralized monitoring device in a direct-current power system consists of four parts: a core part of an automated route management (ARM) processor, a network part of a power supply, a key interface and liquid crystal display (LCD) part, and a communication part, wherein the core part of the ARM processor is respectively connected with the key interface and LCD part and the communication part by electrical signals, and transmits data streams, and the network part of the power supply respectively supplies power for the core part of the ARM processor, the key interface and LCD part, and the communication part. The device can realize the real-time acquisition and display of data information uploaded by various units and modules, the data acquisition is interconnected by RS485 communication way, and the centralized monitoring device uploads unified information to an integrated automation monitoring device by the optional RS232 and RS485 communication way in various different stipulated formats to realize data remote transmission. The device has a modular structure, and is simple in screening and very flexible in configuration.
Description
(1) technical field
The utility model belongs to the monitoring technique field, is specifically related to the centralized control apparatus in a kind of DC power system.
(2) background technology
Electric system is made up of high frequency switch power, accumulator, supervising device and other auxiliary unit usually with direct supply.Past, the automaticity of supervisory system was not high always owing to be subjected to the restriction of technology and device.Need supervisory system automaticity height, stable, reliable operation, easy to adjust, economical and practical requirement according to generating plant, power station, all kinds of transformer station, electric substation all can't be satisfied.
(3) summary of the invention
Dc operation power supply system is the visual plant in power station, the transformer station, and centralized control apparatus is very important control core in the dc operation power supply system.For satisfying power station, the unattended requirement of transformer station, its major function of centralized control apparatus is to realize the automatic management of power-supply system, the optimal management of battery pack.Centralized control apparatus in this DC power system is for satisfying above-mentioned requirements design.
For achieving the above object, the technical scheme of the utility model patent is as follows: it is to be made of four parts for the centralized control apparatus in a kind of DC power system: ARM processor core, power supply network portion, keystroke interface and liquid-crystal display section, communication part, ARM processor core is connected with liquid-crystal display section, communication part electric signal with keystroke interface respectively and transmits data stream, and the power supply network portion is respectively ARM processor core, keystroke interface and liquid-crystal display section, communication part power supply is provided.This device can be realized gathering in real time the data message of various unit, module uploading and show, data acquisition is to be undertaken interconnected by the RS485 communication modes, centralized control apparatus is with unified information, by RS232 and the optional communication modes of RS485, be uploaded to the comprehensive automation supervising device with multiple different rule schemata, realize data remote.This device is that modular construction, group screen are simple, configuration is very flexible.
The utility model patent also has some technical characterictics like this:
That 1, this patent is selected is embedded-type ARM processor S3C44BOX, the processor of ARM system is a most popular processor in the present embedded system, adopted the RISC technology, it is simple to have addressing mode, characteristics such as register is many, and instruction length is fixing make its processing speed fast, execution efficient height, processing power is well beyond Single Chip Microcomputer (SCM) system.
2, adopted RS485 transceiver-ADM2483 based on iCoupler magnetic coupling isolation technology, this chip internal is integrated with three way word Signal Spacing passages and a low-power consumption RS485 transceiver, the DM2483 isolation voltage is 2.5KV, signal transmission rate 500Kbps, but 256 nodes of bus carry have significantly improved the stability of work.
3, realize Chinese and English bilingual interface handoff functionality at any time, do not need to re-power or reset.
4, realization and host computer carry out communication by the RS232/RS485 communication modes, and can choose at random standard communication protocols such as CDT, MODBUS, T103, PROFIBUS.
5, realized that parameter is provided with prompt facility, and display parameter setting success and the successful picture of preservation.
6, realized the ground connection inspection function, battery inspection function, switching value monitoring function, the control function of each module and various warning function centralized control apparatus.Setting by parameter also can realize independently ground connection inspection function, the battery inspection function, and the switching value monitoring function, the interface also changes with changes of function.
7, realize the Centralized Monitoring management and the decentralized data acquisition of transformation and distribution system,, monitor the ruuning situation of electric system in real time by " four the is distant " function and the transmission of comprehensive automation device internet data of remote signalling, remote measurement, remote control, remote regulating.
(4) description of drawings:
Fig. 1 is the ingredient theory diagram
Fig. 2 is a principle of work block diagram in DC power system
Fig. 3 is power supply Principles of Network figure
Fig. 4 is a hardware ingredient theory diagram
Fig. 5 RS485 Principle of Communication figure
Serial ports know-why block diagram is realized in Fig. 6 parallel port
(5) embodiment
For a more detailed description below in conjunction with accompanying drawing 1 to 6 couples of the present invention of accompanying drawing:
The utility model patent is to be image data and deal with data in the core set with ARM 32 bit processing machine S3C44BOX, ARM 32 bit processing machine S3C44BOX are the data acquisitions that realizes by serial line interface and parallel interface with being connected of communication part as shown in Figure 1, serial line interface is that ARM processor S3C44BOX is connected the input and output of realization data by serial i/O mouth with the ADM2483 chip, as shown in Figure 5.Because ARM processor S3C44BOX provides two groups of serial communication I/O interfaces, wherein one group of communication I/O interface mainly realizes being connected with analog acquisition unit, switching value unit the mutual transmission that realizes data stream; Another group communication I/O interface and host computer are realized communication, and the information that centralized control apparatus is collected passes to comprehensive automation device host computer, realize the teletransmission function of data.To be ARM processor S3C44BOX be connected with CPLD by 8 bit data bus parallel interface, interface block diagram as shown in Figure 6, the serial communication of the programming realization data by CPLD inside.This serial ports mainly provides and device talks such as charging set module, UPS inversion module, DC/DC power module direct current AC sampling, EPS inversion module, insulating monitoring unit, battery routing inspection unit, switching value monitoring means, interchange of data, as shown in Figure 2.Button partly is by the mode of line scanning high-low level to be imported CPLD, calculates key set code by the CPLD language program, key set code is passed to ARM processor S3C44BOX again, and ARM processor S3C44BOX carries out the key set code corresponding operating.Liquid-crystal display section is the pith of man-machine interface, and it adopts the colorful display screen design of 256 looks, selects for use different colours to show different data, and different switching value state and alarm condition result of use are very good.Very simple with ARM processor S3C44BOX interface, ARM processor S3C44BOX carries the driver of this liquid crystal display, and easy to use, functional effect is good.
The electric power network part then is the energy supply of this device, and it will offer each chip operation power supply.Make its various piece effectively, continuous in data processing, it is the guarantee of this centralized control apparatus work.Be the power supply network of centralized control apparatus as shown in Figure 3; here introduced the service area of each power module; wherein+12VDC is the input of external switch power supply; + 12VDC input prime adding EMC holding circuit; in this circuit, add common mode voltage dependent resistor (VDR) and differential mode voltage dependent resistor (VDR); filter capacitor, anti-interference ripple rejector such as electromagnetic interface filter has been protected the stability of back level work circuit effectively.The power module of DC12/5 of being linked in sequence provides the 5V power supply of whole supervising device, and output power has the use of enough late-class circuits, also offers the coil working power supply of relay output dry contact; Back level DC5/5 power module provides the communication insulating power supply, and this communication device is the ADM2483 novel chip of a internal insulation; The DC5/3.3 power module provides the power supply of the function part that the working power of CPLD realizes button and the working power core logic voltage of the S3C44BOX of 32 ARM processors is provided.
Be to be the centralized control apparatus hardware composition theory diagram of core with ARM 32 bit processing machine S3C44BOX as shown in Figure 4, the major technique characteristics of its hardware are to have used the integrated MAXII CPLD of programmable Premium Features product low in energy consumption, that cost is low, two kinds of method program compilers of available figure and language, very flexible, it is obvious to go to tremble effect.Realize the operation of button with 32 ARM processor S3C44BOX interfaces, and realized parallel port commentaries on classics serial ports technology, the external acquisition port of the design is increased, the image data simultaneously that can walk abreast, data processing speed strengthens; 256 dichroic liquid crystal colorful display screens are to have selected LM057QC1T01 model graphic dot matrix 256 look stn liquid crystal modules, and its resolution is 320 * 240, have that interface is simple, a working stability and be convenient to characteristics such as operation, and man-machine interface is the close friend very.The own lcd controller of ARM 32 bit processing machine S3C44B0X is sent to outside lcd driver with the data in the buffer memory, and produce necessary LCD control signal, support varying level and vertically count, the LCD of different pieces of information line width, distinct interface sequential and refresh rate; Adopted RS485 transceiver-ADM2483 chip among the design based on iCoupler magnetic coupling isolation technology, this chip internal is integrated with three way word Signal Spacing passages and a low-power consumption RS485 transceiver, ADM2483 chip isolation voltage is 2.5KV, signal transmission rate 500Kbps, but 256 nodes of bus carry have improved the stability of work greatly; Input/output module is a 64k bit serial E
2PROM AT24C64 pin-saving chip, can with 400KHZ I
2The C bus compatible, 100 ten thousand program/erase cycles can be preserved data 100 years.He will preserve all need preserve parameter is set and safeguards a level parameter, the running status that reflects DC power system in real time. by receiving the data of from real-time data base, importing into, but the real-time voltage of display device on every circuit, electric current and switch, the closed off-state of isolating switch. the integrated design of this electric power monitoring system and centralized control apparatus are the inexorable trends of DC power system automatic technology development.
The utility model patent has various very detailed history to report to the police, make user's DC power system transparence, it is the intelligent centralized control apparatus that a cover improves DC power system security, reliability and economy, this device is a modular construction, easy to operate, and group screen is simple, configuration is very flexible.
Claims (3)
1. the centralized control apparatus in the DC power system, it is to be made of four parts: ARM core, power supply network portion, keystroke interface and display part, communication part, it is characterized in that the ARM core is connected with keystroke interface, liquid-crystal display section, communication part respectively and transmits data stream, realize the mutual transmission of data, the power supply network portion is respectively ARM core, keystroke interface and liquid-crystal display section, communication part provides power supply.
2. the centralized control apparatus in a kind of DC power system according to claim 1, the ARM core that it is characterized in that forming centralized control apparatus is embedded-type ARM processor S3C44BOX.
3. the centralized control apparatus in a kind of DC power system according to claim 1 is characterized in that the display screen that liquid crystal display is adopted is a colorful display screen LM057QC1T01 type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202591889U CN201773300U (en) | 2010-07-15 | 2010-07-15 | Centralized monitoring device in direct-current power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202591889U CN201773300U (en) | 2010-07-15 | 2010-07-15 | Centralized monitoring device in direct-current power system |
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| Publication Number | Publication Date |
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| CN201773300U true CN201773300U (en) | 2011-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202591889U Expired - Fee Related CN201773300U (en) | 2010-07-15 | 2010-07-15 | Centralized monitoring device in direct-current power system |
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| CN (1) | CN201773300U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902078A (en) * | 2010-07-15 | 2010-12-01 | 哈尔滨九洲电气股份有限公司 | Centralized monitoring device in direct-current power supply system |
| CN114421627A (en) * | 2022-03-11 | 2022-04-29 | 深圳市首航新能源股份有限公司 | Power supply monitoring system, control method and central monitoring unit |
-
2010
- 2010-07-15 CN CN2010202591889U patent/CN201773300U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101902078A (en) * | 2010-07-15 | 2010-12-01 | 哈尔滨九洲电气股份有限公司 | Centralized monitoring device in direct-current power supply system |
| CN114421627A (en) * | 2022-03-11 | 2022-04-29 | 深圳市首航新能源股份有限公司 | Power supply monitoring system, control method and central monitoring unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20170715 |