CN102843386B - Radio frequency communication module for fault indicator of power distribution network line and applications of radio frequency communication module - Google Patents

Radio frequency communication module for fault indicator of power distribution network line and applications of radio frequency communication module Download PDF

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Publication number
CN102843386B
CN102843386B CN201110142282.5A CN201110142282A CN102843386B CN 102843386 B CN102843386 B CN 102843386B CN 201110142282 A CN201110142282 A CN 201110142282A CN 102843386 B CN102843386 B CN 102843386B
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China
Prior art keywords
frequency communication
radio
radio frequency
communication module
control chip
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CN201110142282.5A
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CN102843386A (en
Inventor
熊晨阳
钱博
宓欣
佘益辉
吴军生
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AVIC Airport Equipment Co., Ltd
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LINYI METROLOGICAL VERIFICATION INSTITUTE
SHANGHAI LI'AN ELECTRONIC TECHNOLOGY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

The invention relates to a radio frequency communication module for a fault indicator of a power distribution network line and applications of the radio frequency communication module. The input end of the radio frequency communication module is connected with a main chip of the fault indicator; the output end of the radio frequency communication module is connected to a main station server. The radio frequency communication module is characterized by comprising a control chip with an SPI (serial peripheral interface) bus, a power module and a radio frequency communication chip; the control chip and the main chip are in two-way communication connection; the radio frequency communication chip is in two-way communication connection with the control chip through an interface of the SPI bus; and the power module is connected with the control chip. Compared with the prior art, the radio frequency communication module has the advantages of low power consumption, ad-hoc network and long communication distance, and the fault indicator has the service life over 10 years and an effective communication distance over 1000m.

Description

A kind of radio-frequency communication module of distribution network line fault indicating device and application thereof
Technical field
The present invention relates to a kind of 10kV distribution network line fault monitoring field, especially relate to a kind of radio-frequency communication module and application thereof of 1 distribution network line fault indicating device.
Background technology
10kV power distribution network is directly in the face of electricity consumption user, so line construction is complicated, joint is many easily occurs the fault such as short circuit, ground connection, affects normal power supply.Fault detector is as a kind of fault detect and positioner, and extensive use in distribution, current fault detector is mainly divided into mechanical type and electronic type two kinds.Mechanical type fault detector, its function is simple, can only tackle short trouble, helpless for earth fault, and artificial line walking must be coordinated to determine abort situation.At present, domestic beginning adopts intelligentized electronic type fault detector, but because the general node of power distribution network is many, branch is many, operational mode is complicated, so electronic type fault detector how constructing communication network, the accuracy that how there is under low-power consumption sufficiently long communication distance, how to ensure promptness and the data communicated, for the existing considerable influence of fault detector figures in the expression of value of the linen, as an equivalent, and consequently, as a thing that is value.
Summary of the invention
Object of the present invention be exactly provide to overcome defect that above-mentioned prior art exists a kind of low in energy consumption, MANET, communication distance are long, and fault detector can be made to have radio-frequency communication module and the application thereof of the useful life more than 10 years and the distribution network line fault indicating device of the effective communication distance more than 1000 meters.
Object of the present invention can be achieved through the following technical solutions: a kind of radio-frequency communication module of distribution network line fault indicating device, be connected with the master chip of fault detector, it is characterized in that, the input of this radio-frequency communication module is connected with the master chip of fault detector, the output of radio-frequency communication module is connected with main website server, it is characterized in that, described radio-frequency communication module comprises the control chip with spi bus, power module, radio frequency communication chips, described control chip is connected with master chip both-way communication, described radio frequency communication chips is connected with control chip both-way communication by the interface of spi bus, described power module is connected with control chip.
The outside of described radio-frequency communication module is provided with metallic shield.
The interface of described spi bus comprises status register, radio frequency communication chips configuration register, sends address register, transmitting data register and receive data register.
Described radio-frequency communication module also comprises the pressurizer that can provide 3.3V ~ 5V linear voltage stabilization, and this pressurizer is connected with power module.
Described radio-frequency communication module also comprises reset chip, and this reset chip is connected with control chip.
An application for the radio-frequency communication module of distribution network line fault indicating device as claimed in claim 1, is characterized in that, this application comprises the following steps: 1) I/O, UART, SPI of control chip and the initialization of radio frequency communication chips configuration register; 2) radio frequency communication chips has judged whether, to the reception of the frame information that main control chip sends, then carry out step 3 if the judgment is Yes), otherwise carry out step 7); 3) radio frequency communication chips completes parameter and functional configuration according to the flag of frame of information; 4) control chip is to radio frequency communication chips write address and data; 5) radio frequency communication chips is arranged to emission mode, and sends information to main website server; 6) terminate to send, and return step 2); 7) judge whether data are ready to, and then carry out steps 8 if the judgment is Yes), otherwise return step 2); 8) from SPI read data, set low DR and AM pin, the valid data frame received is sent backstage, forwards step 2 to).
Compared with prior art, the present invention has the following advantages:
1, there is low in energy consumption, MANET and the long feature of communication distance;
2, fault detector can be realized by the present invention, in limited electric power supply situation, there is the useful life more than 10 years and the effective communication distance more than 1000 meters, and by MANET mode, utilize the redundant node in network, ensure that the communication reliability of fault detector;
3, the useful life solving the existence of 10kV distribution line electronic type fault detector is short, installs too intensive, the problem of communication reliability difference.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is method flow diagram of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Figure 1, a kind of radio-frequency communication module of distribution network line fault indicating device, be connected with the master chip 4 of fault detector, this radio-frequency communication module comprises control chip 2, power module 3, radio frequency communication chips 1, the pressurizer 7 that can provide 3.3V ~ 5V linear voltage stabilization, reset chip 6 with spi bus.Control chip 2 is connected with master chip 4 both-way communication, and radio frequency communication chips 1 is connected with control chip 2 both-way communication by the interface of spi bus, and power module 3 is connected with control chip 2.Pressurizer 7 is connected with power module 3.Reset chip 6 is connected with control chip 2.
Control chip selects Micro Energy Lose chip SIF921, and this control chip has standard spi bus, and convenient and master chip carries out serial communication, and has the 2 external serial ports in tunnel, can realize the data interaction with fault detector master chip;
Radio frequency communication chips adopts SI4432 Micro Energy Lose radio communication chip, this chip technology is ripe, and user interface is friendly, is convenient to carry out secondary development, particularly self-defined route and operating frequency, is more suitable for for this equipment based on cascaded communication mode of fault detector;
Power module has independent current source management function, operating voltage 1.9V ~ 3.6V, thus ensures that voltage fluctuation is minimum for the impact of communication module;
This radio-frequency communication module is when making, except antenna and external serial interface, all the other devices are all arranged in the same face of circuit board, and close with metallic shield, avoid the interference of extraneous electromagnetic interference to communication module, be especially suitable for the fault detector worked in strong electromagnetic interference environment.
Radio-frequency communication module each part function is as follows:
Control chip is responsible for the control of whole communication module, and major function comprises: 1, route and MANET control automatically; 2, carry out information interaction with fault detector by serial ports, information comprises Various types of data, heartbeat frame, communication module status information etc.; 3, carry out information interaction with radio frequency communication chips by spi bus, comprise the transmission of uplink and downlink message, radio frequency communication chips state, clock information etc.All functions are by realizing mcu programming by C language.
Radio frequency communication chips is under the control of single-chip microcomputer, the information of fault detector and data are reported main website server, and receive the information that main website server sends, pass through control chip, coordinate the CPU of fault detector to indicate whole fault detector to complete various function by control chip.Radio frequency communication chips forms primarily of frequency synthesizer, receiving demodulation device, power amplifier, crystal oscillator and modulator, do not need additional filter, automatic process prefix and CRC (CRC), use SPI interface and micro-controller communications, configure very convenient.In addition, its power consumption is very low, and when launching with the power output of 10dbm, electric current only has 7mA, electric current when working in receiving mode is 14mA, fully meet the Micro Energy Lose requirement under fault indicator condition, and built-in idle pulley and shutdown mode, be easier to realize energy-conservation.
For the spi bus of main control chip and radio frequency communication chips information interaction, the interface of this spi bus by status register, radio-frequency configuration register, send address register, transmitting data register and receive data register five registers and form.Status register comprises DSR pin state information and matching addresses pin state information; Radio-frequency configuration register comprises transceiver configuration information, as frequency and output function etc.; Send address register and comprise the address of receiver and the byte number of data; Transmitting data register comprises the information of packet to be sent, as byte number etc.; Receive data register comprises the information such as the byte number of the data that will receive.
The Typical operating voltages of main control chip and radio frequency communication chips is+3.3V, and system power supply power supply standard configuration is+5V, owing to being subject to fault indicator environmental impact, this voltage has larger fluctuation, especially when powered battery and mutual inductance power taking two kinds of supply power modes switch, so adopt low pressure difference linear voltage regulator TPS7333 to realize the linear voltage stabilization of+5V ~+3.3V.In order to realize stablizing, reset reliably, the reset chip TPS70733 of low voltage operating is used to produce reset signal.
Bidirectional data transfers between main control chip with radio frequency communication chips uses identical frame format, and frame format is made up of frame head, frame length, flag of frame and data.Frame head is Frame opening flag, is fixed as 0FF81H, length 2 byte.Frame length refers to the byte number to all data of this frame end from flag of frame, does not comprise frame head, frame length itself, and unit is byte, and frame length accounts for 1 byte.Flag of frame is in order to indicate the contents attribute of these frame data, and length is 1 byte.Data send and adopt inquiry mode, and data receiver adopts interrupt mode.
As shown in Figure 2, the invention still further relates to a kind of application of radio-frequency communication module of distribution network line fault indicating device, this application comprises the following steps:
Step 101) I/O, UART, SPI of control chip and the initialization of radio frequency communication chips configuration register;
Step 102) radio frequency communication chips judged whether the reception of a frame information that sends main control chip, then carry out step 103 if the judgment is Yes), otherwise carry out step 107);
Step 103) radio frequency communication chips completes parameter and functional configuration according to the flag of frame of information;
Step 104) control chip is to radio frequency communication chips write address and data;
Step 105) radio frequency communication chips is arranged to emission mode, and send information to main website server;
Step 106) terminate to send, and return step 102);
Step 107) judge whether data are ready to, and then carry out steps 108 if the judgment is Yes), otherwise return step 102);
Step 108) from SPI read data, set low DR and AM pin, the valid data frame received is sent backstage, forwards step 102 to).
The present invention adopts radio communication mode, and its mode of operation comprises frequency hopping and fixed frequency, optional arbitrarily; There is routing function, adopt MANET communication; Low power dissipation design; Long communication distance; Transmitting power 7 ~ 16dbm is adjustable, and communication distance can reach 500 meters under 7dbm transmitting power, can reach 1000 meters under 16dbm transmitting power.
Low power dissipation design: its emission current is not more than 60mA; Quiescent current 7uA and data transmit-receive can be carried out immediately; Radio frequency close current 60hA, wakeup time 120uS.Fault detector can be realized in the working life only having in powered battery situation more than 5 years by this module; In cooperation induction power taking situation, there is the useful life more than 10 years.
Frequency hopping and fixed frequency: have frequency hopping and fixed frequency two kinds of mode of operations, wherein fixed frequency is public frequency band 433MHz, and frequency hopping frequency range interval is 240 ~ 930MHz.

Claims (5)

1. the radio-frequency communication module of a distribution network line fault indicating device, the input of this radio-frequency communication module is connected with the master chip of fault detector, the output of radio-frequency communication module is connected with main website server, it is characterized in that, described radio-frequency communication module comprises control chip, power module, radio frequency communication chips with spi bus, described control chip is connected with master chip both-way communication, described radio frequency communication chips is connected with control chip both-way communication by the interface of spi bus, and described power module is connected with control chip;
The interface of described spi bus comprises status register, radio frequency communication chips configuration register, sends address register, transmitting data register and receive data register;
The application of the radio-frequency communication module of above-mentioned distribution network line fault indicating device is as follows:
1) I/O, UART, SPI of control chip and the initialization of radio frequency communication chips configuration register;
2) radio frequency communication chips has judged whether, to the reception of the frame information that main control chip sends, then carry out step 3 if the judgment is Yes), otherwise carry out step 7);
3) radio frequency communication chips completes parameter and functional configuration according to the flag of frame of information;
4) control chip is to radio frequency communication chips write address and data;
5) radio frequency communication chips is arranged to emission mode, and sends information to main website server;
6) terminate to send, and return step 2);
7) judge whether data are ready to, and then carry out steps 8 if the judgment is Yes), otherwise return step 2);
8) from SPI read data, set low DR and AM pin, the valid data frame received is sent backstage, forwards step 2 to).
2. the radio-frequency communication module of a kind of distribution network line fault indicating device according to claim 1, it is characterized in that, the outside of described radio-frequency communication module is provided with metallic shield.
3. the radio-frequency communication module of a kind of distribution network line fault indicating device according to claim 1, it is characterized in that, described radio-frequency communication module also comprises the pressurizer that can provide 3.3V ~ 5V linear voltage stabilization, and this pressurizer is connected with power module.
4. the radio-frequency communication module of a kind of distribution network line fault indicating device according to claim 1, it is characterized in that, described radio-frequency communication module also comprises reset chip, and this reset chip is connected with control chip.
5. an application for the radio-frequency communication module of distribution network line fault indicating device as claimed in claim 1, is characterized in that, this application comprises the following steps:
1) I/O, UART, SPI of control chip and the initialization of radio frequency communication chips configuration register;
2) radio frequency communication chips has judged whether, to the reception of the frame information that main control chip sends, then carry out step 3 if the judgment is Yes), otherwise carry out step 7);
3) radio frequency communication chips completes parameter and functional configuration according to the flag of frame of information;
4) control chip is to radio frequency communication chips write address and data;
5) radio frequency communication chips is arranged to emission mode, and sends information to main website server;
6) terminate to send, and return step 2);
7) judge whether data are ready to, and then carry out steps 8 if the judgment is Yes), otherwise return step 2);
8) from SPI read data, set low DR and AM pin, the valid data frame received is sent backstage, forwards step 2 to).
CN201110142282.5A 2011-05-30 2011-05-30 Radio frequency communication module for fault indicator of power distribution network line and applications of radio frequency communication module Active CN102843386B (en)

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CN103944600A (en) * 2014-04-18 2014-07-23 天津七一二通信广播有限公司 Terminal based on ISM communication frequency band

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201281743Y (en) * 2008-09-01 2009-07-29 江苏银网电气股份有限公司 System for monitoring network distribution line fault
CN201408239Y (en) * 2009-03-19 2010-02-17 天津市电力公司 Wireless monitoring system applied to high-tension power transmission line
CN201535811U (en) * 2009-09-30 2010-07-28 泉州科力电气有限公司 FL system of electric distribution network based on wireless communication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201281743Y (en) * 2008-09-01 2009-07-29 江苏银网电气股份有限公司 System for monitoring network distribution line fault
CN201408239Y (en) * 2009-03-19 2010-02-17 天津市电力公司 Wireless monitoring system applied to high-tension power transmission line
CN201535811U (en) * 2009-09-30 2010-07-28 泉州科力电气有限公司 FL system of electric distribution network based on wireless communication

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Effective date of registration: 20200603

Address after: 101300 Shunyi District Beijing airport logistics base logistics park, Shunyi District, Beijing, No. 1

Patentee after: AVIC Airport Equipment Co., Ltd

Address before: 243 room 112-113, building 960, Zhongxing Road, Shanghai, Zhabei District, 200070

Co-patentee before: LINYI METROLOGICAL VERIFICATION INSTITUTE

Patentee before: SHANGHAI LI'AN ELECTRONIC TECHNOLOGY Co.,Ltd.