CN2768282Y - Power distribution terminal - Google Patents
Power distribution terminal Download PDFInfo
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- CN2768282Y CN2768282Y CN 200420115284 CN200420115284U CN2768282Y CN 2768282 Y CN2768282 Y CN 2768282Y CN 200420115284 CN200420115284 CN 200420115284 CN 200420115284 U CN200420115284 U CN 200420115284U CN 2768282 Y CN2768282 Y CN 2768282Y
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Abstract
The utility model relates to an electricity distribution terminal which comprises a power supply, a measure and control unit, a central processing unit, a storage unit and a communication control unit, wherein the measure and control unit, the storage unit and the communication control unit are respectively connected with the central processing unit, and are controlled by the central processing unit. The power supply provides the working voltage of the power supply, wherein the measure and control unit collects terminal data and carries out data conversion. The central processing unit receives the information of the measure and control unit, judges the information which is received, and controls the action of the terminal which is controlled. The storage unit stores data and caries out data interchange, and the communication control unit receives the information of the central processing unit and transmits the information to a network.
Description
Technical field
The utility model relates to a kind of distribution terminal, refer in particular to the employing DSP digital signal processor techniques that is applied in the electrical power distribution automatization system, have the ethernet communication interface, adopt the IEC60870-5-104 stipulations to carry out communication, and provide Web Server function based on http protocol, have Internet/Web browser human-computer interaction interface, adopt general IE browser to realize the distribution terminal of operations such as the remote control of terminal, remote measurement, remote signalling, remote maintenance.
Background technology
Along with development of science and technology; the also unprecedented speed of electricity market is in development; especially also more and more higher to the requirement of the power distribution automation in the electric power system; power distribution automation is to utilize hyundai electronics, computer, communication and network technology; power distribution network online data and off-line data, power distribution network data and user data, electric network composition and geographical figure etc. are carried out information integration; constitute complete automated system, the modernization of the monitoring under normal operation of realization power distribution network and equipment thereof and the accident condition, protection, control, usefulness electric charge distribution management.
Existing distribution terminal adopts traditional central processing unit, realize as INTEL96 and 51 series monolithics and corresponding scm software thereof, but the mode of operation that is based on this kind processor can not adapt to power system development, mainly shows:
1, in use, operating efficiency is low, is difficult to realize real-time and multi-functional double requirements;
2, along with Internet development, traditional mode of operation is difficult to realize the network function of distribution terminal, can't use common software to terminal operation, maintenance, causes the bottleneck of terminal technology development;
3, in distribution system, communication becomes the bottleneck of restriction Distribution Automation Technology development, existing distribution terminal lacks the Fast Ethernet interface, make that technology such as advanced communication mode such as fiber optic Ethernet are difficult to use in distribution system, existing distribution terminal can not adapt to the requirement of power distribution automation development.
Summary of the invention
The purpose of this utility model provides a kind of distribution terminal, it is by advanced DSP digital signal processor techniques, strengthened the real-time of data processing, use embedded OS and industrial chipset module, simplified development process, use ethernet controller to realize the network communicating function of terminal, thereby make terminal networkization, improve its operating efficiency.
Another purpose of the present utility model is to provide a kind of distribution terminal; can realize fault detect and protection, failure wave-recording, earth fault line selection and selections, Fault Identification, the isolation of supply line and recover functions such as non-faulty section power supply, and can realize remote measurement, remote signalling, distant control function.
Another purpose of the present utility model provides a kind of distribution terminal, can transmit the data of TTU, kilowatt-hour meter or other intelligent apparatus.
The purpose of this utility model is achieved in that a kind of distribution terminal, includes: power supply, measurement and control unit, CPU, memory cell and communication control unit;
Described measurement and control unit, memory and communication control unit connect with described central processing unit respectively, and are controlled by central processing unit, and described power supply provides its operating voltage, wherein:
The go forward side by side conversion of line data of described measurement and control unit acquisition terminal data;
Described CPU receives the information of measurement and control unit and the information that receives is judged, and the action of control controlled terminal;
The go forward side by side line data exchange of described storage unit stores data;
Described communication control unit receives the information of CPU and this information is sent to network.
Described CPU adopts the DSP digital signal processor.
Described communication control unit contains Rabbit2000 built-in industrial chipset, μ C/OS-II multiple task real-time operation system and RTL8019 ethernet communication controller, 1 Ethernet interface is provided, adopt the IEC60870-5-104 stipulations to carry out communication, and provide Web Server function based on http protocol, have Internet/Web browser human-computer interaction interface, realize terminal operation by the IE browser; Described communication control unit also is provided with 2 RS485 interfaces, 2 RS232 interfaces, and this interface adopts the IEC60870-5-101 stipulations to carry out communication.
The terminal data of described measurement and control unit collection is the state of switch in alternating current-direct current input variable or the distribution system.
Effect of the present utility model is significant:
1, the utility model adopts the embedded communication module, 10M ethernet hardware communication interface is provided, traffic rate is much higher than present 9600bps that uses or the traffic rate of 19200bps more, and the performance that has improved distribution terminal especially realizes the network function of terminal;
2, the embedded communication module of the utility model employing, make the utility model realize Web Server function based on http protocol, and can adopt general IE browser to obtain the data that terminal is gathered, and can safeguard terminal, operation such as remote control, make terminal networkization, greatly facilitate user's use.
3, the utility model adopts the embedded system modular structure, and the development of having saved special-purpose software has reduced system cost;
4, the utility model adopts the communication protocol-IEC60870-5-104 stipulations based on ICP/IP protocol, has improved communication efficiency;
5, adopted the DSP digital signal processor in the structure of the present utility model, made it improve real-time and reliability.
Description of drawings
Fig. 1 is a complete machine structure block diagram of the present utility model.
Fig. 2 is a schematic circuit of the present utility model.
Fig. 3 is a circuit diagram of the present utility model.
Embodiment
The utility model is a kind of distribution terminal, and as shown in Figure 1, it includes: power supply, measurement and control unit, CPU, memory cell and communication control unit; Described measurement and control unit, memory and communication control unit connect with described central processing unit respectively, and are controlled by central processing unit, and described power supply provides its working power, wherein: the go forward side by side conversion of line data of described measurement and control unit acquisition terminal data; Described CPU receives the information of measurement and control unit and the information that receives is judged, and the action of control controlled terminal; The go forward side by side line data exchange of described storage unit stores data; Described communication control unit receives the information of CPU and this information is sent to network.
In the present embodiment, CPU of the present utility model selects to adopt the high-speed dsp chip; ripple carries out the calculating of 64 point samplings weekly; be equipped with maturation, the AC sampling of simplifying and protection algorithm, the accuracy that the accuracy of assurance DATA REASONING and protection are judged, fast, reliably.
Described communication control unit contains Rabbit2000 built-in industrial chipset, μ C/OS-II multiple task real-time operation system and RTL8019 ethernet communication controller, 1 Ethernet interface is provided, adopt the IEC60870-5-104 stipulations to carry out communication, and provide Web Server function based on http protocol, have Internet/Web browser human-computer interaction interface, can realize terminal operation by the IE browser; Described communication control unit also is provided with 2 RS485 interfaces, 2 RS232 interfaces, adopts the IEC60870-5-101 stipulations to carry out communication.In actual use, because it provides 5 communication interfaces, i.e. Ethernet interface, 2 RS485 interfaces, 2 RS232 interfaces all can independently be finished network communicating function, make the user can select internetwork connection mode as required.
Measurement and control unit described in the utility model detects the interchange of distribution system and the input of DC quantity, and whether the work of the state of each switch in the detection distribution line and circuit is normal, then its testing result is carried out the conversion of signal and be sent to described CPU, after described CPU and memory cell are carried out exchanges data, according to testing result, whether the work of judging circuit is normal, if distribution line is working properly, then CPU is sent to described memory cell with detection information, the operational data of described unit records distribution line, and the data of line work are sent to network by the ethernet interface in the communication control unit, so that the distribution system client is monitored in real time to the operating state of distribution line, described distribution system client can be browsed every data by the IE browser, the distribution monitor main website that has authority in addition can control the utility model by communication control unit, and then the control distribution system.
As measurement and control unit when detecting data, detection line has fault, then described CPU judges according to testing result rapidly, send instruction controlled device is carried out breaking-closing operating, and this information is sent to described memory cell, described memory cell is got up this information stores, can carry out browsing data monitoring and control to it for master station and client.
Described measurement and control unit and described CPU are finished the current failure measuring ability jointly, described current failure testing circuit detects the negative-sequence current signal and is sent to described CPU, by described CPU signal is handled, judged whether the fault generation and carried out troubleshooting.Owing to adopted high accuracy instrument transformer, AC Data and DSP digital signal processor techniques, thereby improved its sensitivity and reliability.
Structure of the present utility model as shown in Figure 1 is made up of 5 unit, and all circuit structures, element, chip layout are on four layers of wiring board, and the communication control unit module is fixing in the circuit board with base; Wiring board is shaped as rectangle, adopts SMT technology and plug-in mounting technology in conjunction with making, and all components and parts all adopt wide temperature level; Wiring board spraying three anti-lacquers, shell shape is an aluminium alloy cuboid, surface plastic spraying is also used the silk screen printing product marking.
Be illustrated in figure 2 as schematic circuit of the present utility model, described measurement and control unit adopts the high accuracy instrument transformer, 14 high-speed synchronous A/D converters are realized, be illustrated in figure 3 as key component circuit diagram of the present utility model, the utility model adopts real-time multi-task operating system, with integrated ICP/IP protocol station, improved the especially realization of its network function of performance of terminal, can adopt 10M ethernet hardware communication interface in the present embodiment, traffic rate is much higher than present 9600bps that uses or the traffic rate of 19200bps more, has improved the operating efficiency of distribution terminal; Said structure of the present utility model makes the Web Server function that the utlity model has based on http protocol, in use can adopt general IE browser to obtain the data that terminal is gathered, and can safeguard terminal, make terminal networkization, greatly facilitate user's use, need not to carry out the development of special-purpose software, reduced system cost; The utility model can with the distribution substation of the data of special collection terminal in the electrical power distribution automatization system, employing is carried out exchanges data based on the communication protocol-IEC60870-5-104 stipulations of ICP/IP protocol, and can be positioned at browsing page on any client computer with browser, obtain information, improved its communication efficiency; The utility model has adopted the negative-sequence current fault detection method in addition, makes the utility model aspect route protection, has improved reliability and sensitivity.
Claims (4)
1, a kind of distribution terminal is characterized in that, includes: power supply, measurement and control unit, CPU, memory cell and communication control unit;
Described measurement and control unit, memory and communication control unit connect with described central processing unit respectively, and are controlled by central processing unit, and described power supply provides its operating voltage, wherein:
The go forward side by side conversion of line data of described measurement and control unit acquisition terminal data;
Described CPU receives the information of measurement and control unit and the information that receives is judged, and the action of control controlled terminal;
The go forward side by side line data exchange of described storage unit stores data;
Described communication control unit receives the information of CPU and this information is sent to network.
2, a kind of distribution terminal as claimed in claim 1 is characterized in that, described CPU adopts the DSP digital signal processor.
3, a kind of distribution terminal as claimed in claim 1, it is characterized in that, described communication control unit contains Rabbit2000 built-in industrial chipset, μ C/OS-II multiple task real-time operation system and RTL8019 ethernet communication controller, 1 Ethernet interface is provided, adopt the IEC60870-5-104 stipulations to carry out communication, and Web Server function based on http protocol is provided, and have Internet/Web browser human-computer interaction interface, realize terminal operation by the IE browser; Described communication control unit also is provided with 2 RS485 interfaces, 2 RS232 interfaces, and this interface adopts the IEC60870-5-101 stipulations to carry out communication.
4, a kind of distribution terminal as claimed in claim 1 is characterized in that, the terminal data of described measurement and control unit collection is the state of switch in alternating current-direct current input variable or the distribution system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115284 CN2768282Y (en) | 2004-11-25 | 2004-11-25 | Power distribution terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115284 CN2768282Y (en) | 2004-11-25 | 2004-11-25 | Power distribution terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2768282Y true CN2768282Y (en) | 2006-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115284 Expired - Fee Related CN2768282Y (en) | 2004-11-25 | 2004-11-25 | Power distribution terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2768282Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122139A (en) * | 2010-12-22 | 2011-07-13 | 广东电网公司电力科学研究院 | Distribution automation terminal and AC (Alternating Current) sampling channel expansion method thereof |
| CN102984005A (en) * | 2012-12-05 | 2013-03-20 | 深圳供电局有限公司 | Method and system for remotely maintaining terminal equipment of power distribution network and corresponding terminal equipment |
| CN103529331A (en) * | 2013-10-25 | 2014-01-22 | 珠海许继电气有限公司 | Full-automatic detection method of terminal history data |
| CN103837786A (en) * | 2014-03-28 | 2014-06-04 | 国网上海市电力公司 | State monitoring system and monitoring method of intelligent distribution network equipment |
| CN105281424A (en) * | 2015-11-11 | 2016-01-27 | 国网山东省电力公司烟台供电公司 | Collection terminal power assisting device |
-
2004
- 2004-11-25 CN CN 200420115284 patent/CN2768282Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122139A (en) * | 2010-12-22 | 2011-07-13 | 广东电网公司电力科学研究院 | Distribution automation terminal and AC (Alternating Current) sampling channel expansion method thereof |
| CN102122139B (en) * | 2010-12-22 | 2012-11-07 | 广东电网公司电力科学研究院 | Distribution automation terminal and AC (Alternating Current) sampling channel expansion method thereof |
| CN102984005A (en) * | 2012-12-05 | 2013-03-20 | 深圳供电局有限公司 | Method and system for remotely maintaining terminal equipment of power distribution network and corresponding terminal equipment |
| CN102984005B (en) * | 2012-12-05 | 2016-04-13 | 深圳供电局有限公司 | Method and system for remotely maintaining terminal equipment of power distribution network and corresponding terminal equipment |
| CN103529331A (en) * | 2013-10-25 | 2014-01-22 | 珠海许继电气有限公司 | Full-automatic detection method of terminal history data |
| CN103529331B (en) * | 2013-10-25 | 2016-04-20 | 珠海许继电气有限公司 | A kind of method of fully-automated synthesis terminal historical data |
| CN103837786A (en) * | 2014-03-28 | 2014-06-04 | 国网上海市电力公司 | State monitoring system and monitoring method of intelligent distribution network equipment |
| CN105281424A (en) * | 2015-11-11 | 2016-01-27 | 国网山东省电力公司烟台供电公司 | Collection terminal power assisting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shidai Corp. Group Assignor: Beijing Time Technologies Co., Ltd. Contract fulfillment period: 2009.5.12 to 2014.5.11 Contract record no.: 2009990000496 Denomination of utility model: Method and device for maintaining redundant channel of power distribution terminal Granted publication date: 20060329 License type: Exclusive license Record date: 20090514 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.5.12 TO 2014.5.11; CHANGE OF CONTRACT Name of requester: SHIDAI GROUP CO. Effective date: 20090514 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060329 Termination date: 20111125 |