CN210468894U - Intelligent feeder terminal based on 4G communication - Google Patents
Intelligent feeder terminal based on 4G communication Download PDFInfo
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- CN210468894U CN210468894U CN201920370541.1U CN201920370541U CN210468894U CN 210468894 U CN210468894 U CN 210468894U CN 201920370541 U CN201920370541 U CN 201920370541U CN 210468894 U CN210468894 U CN 210468894U
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- 238000004891 communication Methods 0.000 title claims abstract description 29
- 238000012545 processing Methods 0.000 claims abstract description 25
- 230000001360 synchronised effect Effects 0.000 claims abstract description 11
- 230000006855 networking Effects 0.000 claims abstract description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
An intelligent feeder terminal based on 4G communication comprises a data acquisition unit, a circuit breaker control signal circuit module, a signal indication unit, a microcomputer processing unit, a power supply module, a synchronous time service module and a 4G communication module; the microcomputer processing unit comprises a TMS320F28335 chip, a GPIO expansion interface, an RS232 interface and an ADC analog-to-digital converter interface circuit; the 4G communication module adopts a packaged USR-G780 serial port networking module; the synchronous time service module adopts a GPS/BD dual-mode time service module. The utility model discloses can realize feeder terminal 4G network and pass communication and synchronous accurate time service thoroughly, the communication is reliable, is convenient for maintain, can realize the safety and the stability of distribution network, guarantees equipment and user safety.
Description
Technical Field
The utility model relates to a power transmission and distribution equipment, concretely relates to intelligence feeder terminal based on 4G communication.
Background
The distribution network plays an important role in the power industry as an important bridge for connecting a transmission network and users. The Feeder Terminal (FTU) is an intelligent terminal device installed on a distribution room or a feeder line, and is used for detecting the state of a switch on the feeder line, monitoring operation parameters, transmitting data with a main station and executing an issuing command of the main station. The sensitivity, the quick action and the reliability of the FTU greatly influence the safety and the stability of the power distribution network. With the access of the distributed power supply, the situation of the power distribution network is more complicated, the access of the distributed power supply can cause a series of problems of protection misoperation, reduced sensitivity, reclosing failure and the like of the traditional power distribution network, and the requirements on the reliability and maintainability of communication and the synchronism of line signal acquisition are more strict.
Disclosure of Invention
An object of the utility model is to the above-mentioned problem, provide an intelligence feeder terminal based on 4G communication, this feeder terminal simple structure uses and maintains the convenience, and accommodation is wide, and reliability and stability can be good.
The technical scheme for realizing the purpose is as follows: an intelligent feeder terminal based on 4G communication comprises a data acquisition unit, a circuit breaker control signal circuit module, a signal indication unit, a microcomputer processing unit, a power supply module, a synchronous time service module and a 4G communication module; the microcomputer processing unit comprises a TMS320F28335 chip, a GPIO expansion interface, an RS232 interface and an ADC analog-to-digital converter interface circuit; the 4G communication module adopts a packaged USR-G780 serial port networking module and is connected with the microcomputer processing unit through an RS232 interface; the synchronous time service module adopts a GPS/BD dual-mode time service module and is connected with the microcomputer processing unit through an RS232 interface; the data acquisition unit comprises a current transformer, a voltage transformer, a filter circuit and a bias circuit.
Furthermore, the circuit breaker control signal circuit module is connected with the microcomputer processing unit through an optical coupling isolation and a relay.
Furthermore, the feeder terminal also comprises a switching value input/output circuit which is connected with the GPIO expansion interface and the signal indication unit.
Furthermore, the signal indicating unit comprises a closing indicating lamp, an opening indicating lamp, an alarm indicating lamp and a power supply indicating lamp.
The beneficial effects of the utility model reside in that:
the 4G communication module who adopts box-shaped encapsulation supports to remove, UNICOM, the high-speed access of telecommunications 4G, supports to remove, UNICOM's 3G and 2G access, supports agreement pass through the mode (UDC mode), supports server end secondary development, has increased the utility model discloses an application range and expansibility, simultaneously, it is convenient to connect, can use easy to maintain with computer processing unit serial ports connection. The GPS/BD dual-mode time service module is adopted, so that accurate time service of synchronous time service is guaranteed, accurate synchronization of signals collected by a plurality of feeder terminals is guaranteed, protection misjudgment caused by signal collection errors is prevented, and reliability and stability are improved. The microcomputer processing unit adopts a TMS320F28335 chip as a processor, has the functions of storage and strong digital signal processing, and has quick operation, so that the development and the use are convenient and efficient. The network wireless communication with high reliability and convenient maintenance and the accurate action on the faults of the power distribution network meet the requirement of the reliability of the intelligent power distribution network.
Drawings
Fig. 1 is a structural block diagram of an intelligent feeder terminal based on 4G communication.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1, the intelligent feeder terminal based on 4G communication includes a data acquisition unit, a circuit breaker control signal circuit module, a signal indication unit, a microcomputer processing unit, a power supply module, a synchronous time service module, and a 4G communication module. The microcomputer processing unit comprises a TMS320F28335 chip, a GPIO expansion interface, an RS232 interface and an ADC analog-to-digital converter interface circuit. The 4G communication module adopts a packaged USR-G780 serial port networking module and is connected with the microcomputer processing unit through an RS232 interface. The synchronous time service module adopts a GPS/BD dual-mode time service module and is connected with the microcomputer processing unit through an RS232 interface. The data acquisition unit comprises a current transformer, a voltage transformer, a filter circuit and a bias circuit. The current transformer and the voltage transformer are respectively connected with a filter circuit, the filter circuit is connected with a bias circuit, and the bias circuit is connected with an ADC (analog-to-digital converter) interface circuit of the microcomputer processing unit.
The 4G communication module is communicated with the microcomputer processing unit through an RS232 interface, a 4G network bidirectional data transparent transmission protocol is adopted for the power distribution main station and other feeder terminals, and the communication baud rate is set to be 15200 bps.
The synchronous time service module is connected with the microcomputer processing unit through an RS232 interface, and the communication baud rate is set to 9600 bps.
The power supply module is a small-sized isolation switch power supply module converting 220V to 5V, AC-DC. The power module is connected with the signal indicating unit and the microcomputer processing unit and supplies power to the signal indicating unit and the microcomputer processing unit.
In fig. 1, the circuit breaker control signal circuit module is connected with the microcomputer processing unit through optical coupling isolation and a relay, and the output is connected to an operating mechanism of an external circuit breaker. And the circuit breaker control signal circuit module is connected with the relay. The relay is connected to the optocoupler isolator.
In fig. 1, the feeder terminal further includes a switching value input/output circuit connected to the GPIO expansion interface and the signal indication unit, and the GPIO expansion interface is connected to the TMS320F28335 chip.
In fig. 1, the signal indicating unit includes an alarm indicator, a closing indicator, a separating indicator and a power indicator. The power supply indicator light is connected with the power supply module, the switching-off indicator light, the switching-on indicator light and the alarm indicator light are connected with the switching value input/output circuit, and the LED indicator lights with four colors are respectively adopted for indication.
This intelligent feeder terminal based on 4G communication adopts metal subrack structure, includes a backplate, three plug-in components and three groups of guide rails in the subrack, and each part is settled respectively on three plug-in components.
Claims (4)
1. The utility model provides an intelligent feeder terminal based on 4G communication which characterized in that: the feeder line terminal comprises a data acquisition unit, a circuit breaker control signal circuit module, a signal indication unit, a microcomputer processing unit, a power supply module, a synchronous time service module and a 4G communication module; the microcomputer processing unit comprises a TMS320F28335 chip, a GPIO expansion interface, an RS232 interface and an ADC analog-to-digital converter interface circuit; the 4G communication module adopts a packaged USR-G780 serial port networking module and is connected with the microcomputer processing unit through an RS232 interface; the synchronous time service module adopts a GPS/BD dual-mode time service module and is connected with the microcomputer processing unit through an RS232 interface; the data acquisition unit comprises a current transformer, a voltage transformer, a filter circuit and a bias circuit.
2. The intelligent feeder terminal based on 4G communication of claim 1, wherein: and the circuit breaker control signal circuit module is connected with the microcomputer processing unit through an optical coupling isolation and a relay.
3. The intelligent feeder terminal based on 4G communication of claim 1, wherein: the switching value input/output circuit is connected with the GPIO expansion interface and the signal indication unit.
4. The intelligent feeder terminal based on 4G communication of claim 1, wherein: the signal indicating unit comprises a closing indicating lamp, a separating indicating lamp, an alarm indicating lamp and a power supply indicating lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370541.1U CN210468894U (en) | 2019-03-22 | 2019-03-22 | Intelligent feeder terminal based on 4G communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920370541.1U CN210468894U (en) | 2019-03-22 | 2019-03-22 | Intelligent feeder terminal based on 4G communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210468894U true CN210468894U (en) | 2020-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920370541.1U Expired - Fee Related CN210468894U (en) | 2019-03-22 | 2019-03-22 | Intelligent feeder terminal based on 4G communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210468894U (en) |
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2019
- 2019-03-22 CN CN201920370541.1U patent/CN210468894U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200505 Termination date: 20210322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |