CN2777661Y - On line temp wireless monitoring system for distributing and transforming apparatus - Google Patents
On line temp wireless monitoring system for distributing and transforming apparatus Download PDFInfo
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- CN2777661Y CN2777661Y CN200520073967.9U CN200520073967U CN2777661Y CN 2777661 Y CN2777661 Y CN 2777661Y CN 200520073967 U CN200520073967 U CN 200520073967U CN 2777661 Y CN2777661 Y CN 2777661Y
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Abstract
The utility model provides an on-line temperature wireless monitoring system for an apparatus capable of distributing and transforming electricity. The system can read the temperature measuring data of a monitoring point in long distance in a non-contact form and can automatically transfer the temperature data collected to a computer for carrying out the integrated storage management, instant analysis, and automatic alarm for solving the automatic real-time monitoring problem of the working temperature of the apparatus in a wide range and complicated industrial on-site environment. The monitoring system is composed of an active wireless temperature sensor, a wireless temperature data receiver, and a temperature data analysis process computer, wherein the active wireless temperature sensor is arranged on the monitoring point of the apparatus capable of distributing and transforming electricity. The temperature of the monitoring point needs to be monitored. The wireless temperature data receiver is arranged in a station capable of distributing and transforming electricity, and the temperature data analysis process computer is arranged in a main control room of the station capable of distributing and transforming electricity. The active wireless temperature sensor and the wireless temperature data receiver are connected by radio, and the temperature data analysis process computer and the wireless temperature data receiver are connected by an industrial on-site bus.
Description
Technical field
The utility model belongs to automation field, relate to the online temperature wireless monitoring system of a kind of allocation transformer equipment, the automatic real time temperature of especially a kind ofly adapt to that monitoring point quantity is many, complex distribution, the industry spot environment of difficult wiring being used is down measured disposal system.
Background technology
In recent years, electric system power transmission and transformation network develops towards high voltage, jumbo direction, and electric load is rapid growth situation.Along with power customer to improving constantly that the security of electric power supply, reliability, continuity require, electric power primary equipment running overload, supercycle maintenance even can't interruption maintenance etc. the phenomenon ubiquity.In the operational process, phenomenons such as electric power primary equipment local overheating, overtemperature, insulation damages happen occasionally, and have caused equipment to burn out even the fire disaster accident; Cause system blackout, jeopardize power grid security, to causing heavy economic losses for the electricity consumption both sides.Thereby, grasp equipment health status in real time, timely discovery, abatement apparatus defective, the safe and reliable operation of assurance power equipment ensures the safe and reliable power supply of client, and is particularly important to electric system now.
Allocation transformer equipment on-line temperature monitoring method commonly used at present mainly contains temperature sensing cable formula and thermistor-type, and they are wired temperature monitoring method all, are primarily aimed at the cable that lays in raceway groove or the tunnel and use.But the crucial contact of the high aloft equipment of, complex distribution many for the temperature monitoring number of spots, difficult wiring then can't use these wired temperature monitoring methods.Temperature monitoring to this kind equipment still is confined to can't carry out on-line monitoring, more can not carry out analysis and early warning to the temperature rise situation of equipment the temperature of equipment with traditional thermometric modes such as the warm sheet of examination, artificial far infrared thermometrics.
Summary of the invention
The purpose of this utility model provides a kind of digital temperature sensing of utilizing, radio communication, data transmission, the online temperature wireless monitoring system that new and high technologies such as Computer Processing combine, this system noncontact at a distance reads the temperature measuring data of monitoring point, automatically the temperature data of gathering is transferred to computing machine and carries out the centralized stores management, and can carry out instant analysis to the temperature data of each monitoring point, find that temperature surpasses the setting thresholding or rate of rise in temperature is too fast, then report to the police automatically, remind the operator on duty in time to handle, thereby solve on a large scale, the auto-real-time monitoring difficult problem of equipment working temperature under the complex industrial site environment.
The technical solution of the utility model is:
The online temperature wireless monitoring system of a kind of allocation transformer equipment, it is characterized in that it is mainly by the active wireless temperature sensor, the wireless temperature data receiver, temperature data analysis processing computer three parts are formed, the active wireless temperature sensor is installed in the monitoring point that needs thermometric on the power equipment, the wireless temperature data receiver is arranged in the correct position in the distribution transforming power station, the temperature data analysis processing computer is installed in Allocation transformer station master-control room, by dedicated radio link, be connected by industrial field bus between temperature data analysis processing computer and the wireless temperature data receiver between active wireless temperature sensor and the wireless temperature data receiver.
The quantity decision of the quantity of radio temperature sensor by the monitoring point is installed in the distribution transforming power station, can be 1～tens thousand of.
The quantity of wireless temperature data receiver is installed by the area in distribution transforming power station and the quantity and the distributing position decision of monitoring point in the distribution transforming power station.Each wireless temperature data receiver can receive the data of radius all radio temperature sensor emissions in 100 meters scopes.
A sleeving temperature data analysis process computer is installed in a distribution transforming power station at least.
Each wireless senser has unique ID numbering, and radio temperature sensor is measured the temperature of monitoring point automatically every a setting-up time, and temperature data that records and ID number of sensor are sent with wireless mode together; The wireless temperature data receiver receives in the monitoring range temperature measuring data of the active wireless temperature sensor emission that all can reliable communication and sensor ID number, and buffer-stored is in the receiver internal storage; Temperature data analysis processing computer Automatic Cycle is communicated by letter with receiver successively, reads the monitor temperature data that receive in the wireless temperature data receiver internal storage and corresponding sensor ID number; The temperature data analysis processing computer deposits the data of gathering in database, and data are carried out analysis-by-synthesis, and warning is sent in the danger that may exist.
The active wireless temperature sensor mainly comprises digital sensor U1, radio transmitting and receiving chip U3, storer EEPROM U2 and power circuit, the MOSI pin of radio transmitting and receiving chip U3 connects the DIN pin of digital sensor U1 and the SI pin of storer EEPROM U2, its MISO pin connects the SO pin of digital sensor DOUT pin and storer EEPROM U2, its SCK pin provides serial clock for digital sensor U1 and storer EEPROM U2, and its EECSN pin connects the CS pin of storer EEPROM U2.
The wireless temperature data receiver mainly comprises radio transmitting and receiving chip U5, storer EEPROMU4, differential data line transceiver UP1 and power circuit, the P01 of radio transmitting and receiving chip U5, P02, P03, the P04 pin meets the DI of differential data line transceiver UP1, RO respectively, / RE, the DE pin, the A of differential data line transceiver UP1, the B pin is connected with industrial field bus.
The radio communication of system described in the utility model can select to work in ISM frequency of operation such as 433MHz, 915MHz or 2450MHz.
The beneficial effects of the utility model:
1, compare with general temperature monitoring system, its adopts wireless mode to transmit the temperature of tested measuring point, so the installation of system equipment, use, maintenance, and expands very conveniently from now on, is specially adapted to complicated industry spot environment.
2, the working temperature that system can continuous 24 hours uninterrupted automated monitors has realized the quantitative management of equipment operation maintenance helping the potential faults in the timely discovering device operational process, guarantees the safe and reliable operation of electrical production.
Description of drawings
Fig. 1 is the utility model structured flowchart.
Fig. 2 is the utility model radio temperature sensor circuit theory diagrams.
Fig. 3 is the utility model wireless temperature data receiver circuit theory diagrams.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, the online temperature wireless monitoring system of a kind of allocation transformer equipment, system is made up of active wireless temperature sensor 1, wireless temperature data receiver 2, temperature data analysis processing computer 3 three parts.Active wireless temperature sensor 1 self-timing is measured the temperature of monitoring point, and temperature data that records and ID number of sensor are sent with wireless mode together; Wireless temperature data receiver 2 receives in the monitoring ranges temperature measuring data of active wireless temperature sensor 1 emission that all can reliable communication and sensor ID number, and buffer-stored is in the receiver internal storage; Be connected by industrial field bus between temperature data analysis processing computer 3 and the wireless temperature data receiver 2, computing machine is that main frame (Master), each receiver are slave (Slaver), the computing machine Automatic Cycle is communicated by letter with receiver successively, reads the monitor temperature data that receive in the receiver internal storage and corresponding sensor ID number.Temperature data analysis processing computer 3 deposits the data of gathering in database, and data are carried out analysis-by-synthesis, and warning is sent in the danger that may exist.
Fig. 2 is an active wireless temperature sensor circuit schematic diagram of the present utility model, and the hardware chip that needs in the total system to use mainly comprises ADT7301 digital sensor, nRF9E5 radio transmitting and receiving chip, EEPROM etc.Wherein ADT7301 is the intelligent temperature sensor of the up-to-date release of U.S. Analog Devices company, and its temperature-measuring range is-40 ℃～150 ℃.NRF9E5 is the wireless data transceiving intelligent RF chip that Northern Europe Nordic company releases, its built-in 51 single-chip microcomputers, and peripheral circuit connects very simple.EEPROM adopts 25320, and it is the external program memory of the SPI Serial Peripheral Interface (SPI) of nRF9E5 support.These chips are equipped with correspondent peripheral circuit, the basic hardware structure of construction system.
The MOSI pin of nRF9E5 transmits data to the SI pin of temperature sensor DIN pin and EEPROM respectively, the MISO pin of nRF9E5 receives from temperature sensor DOUT pin and EEPROM SO pin serial data, nRF9E5 SCK is as temperature sensor and EEPROM serial clock, EECSN is that the CS of EEPROM send enable signal, P07 is that temperature sensor send chip selection signal, and XC1 is the crystal oscillator input, and XC2 is crystal oscillator output, IREF is an analog reference voltage, and ANT1 and ANT2 are antennal interface.Principle of work: ADT7301 is under energy-saving mode, the sheet internal oscillator is closed, ADT7301 does not carry out temperature transition, under the normal conversion pattern, when carrying out read/write operation, its internal oscillator can automatically reset after read-write operation finishes so that temperature divertor can carry out temperature transition again, from the DOUT output terminal to SPI interface MISO.The transceiver of nRF9E5 has three kinds of working methods, and ShockBurst receives (RX) mode, ShockBurst sends (TX) mode and idle mode.Its mode of operation is by TRX_CE, TX_EN and PWR_UP decision.The master routine of nRF9E5 leaves in the outside serial EEPROM, and when chip began to power on, producer's boot of its inside solidification was by the SPI interface, with 4K byte space among the RAM of the importing of the master routine among outside EEPROM nRF9E5.When microcontroller has data to send, by the SPI interface, give nRF905 the address of receiver and the data that will send chronologically, microcontroller is put high TRX_CE and TX_EN, excites the ShockBurstTM sending mode of nRF905, and the radio frequency register is opened automatically, packing data (adding prefix and CRC check sign indicating number), send packet, producing centre frequency by the inner modulation circuit is the modulating wave of 433/868/915MHZ, amplifies the back through power amplifier again and launches from the PCB antenna.When data are sent completely, the DSR pin is put height; AUTO_RETRAN is put height, and nRF905 constantly retransmits, and is put lowly up to TRX_CE, and the nRF905 process of transmitting is finished, and enters idle pulley automatically.
Radio temperature sensor adopts the power supply of 3V button cell, and battery capacity should be greater than 300mAh.
Fig. 3 is wireless temperature data receiver circuit theory diagrams of the present utility model, mainly comprises radio transmitting and receiving chip nRF9E5, EEPROM, differential data line transceiver SN75LBC184 and power circuit.Wherein the nRF9E5 integrated package is the wireless data transceiving intelligent RF chip that Northern Europe Nordic company releases, and it is built-in with 51 single-chip microcomputers, and peripheral circuit connects very simple, can be connected with radio-frequency antenna easily.25320 is pin-saving chip, and it is connected with nRF9E5 by the SPI Serial Peripheral Interface (SPI), and its external program and data space are provided.SN75LBC184 be in the SN5176 industry standard scope the differential data line transceiver they have built-in high-energy transition noise protective device; integrated transient voltage resists; message transmission rate in electrical noise environment is 250kbps, and 1/4 unit load allows 128 devices to be connected to bus.
The method of attachment of nRF9E5 and EEPROM is identical with data transmitter, the P01 of nRF9E5, P02, P03, P04 respectively with differential data line transceiver DI, RO ,/RE, DE connects, differential data line transceiver A, the B pin is connected with industrial field bus, and antenna adopts 50 ohm single-ended antennas.Power circuit produces 5V and powers to LBC184, and LM1117 is a power management module, and the 5V level is converted into the 3.3V that nRF9E5 can use.The master routine of principle of work: nRF9E5 leaves in the outside serial EEPROM, and when chip began to power on, producer's boot of its inside solidification was by the SPI interface, with 4K byte space among the RAM of the importing of the master routine among outside EEPROM nRF9E5.When TRX_CE is high, when TX_EN is low, nRF905 enters the ShockBurstTM receiving mode, the high-frequency signal of being sent here by transmitter is through receiver antenna, low noise amplifier, frequency mixer, bandpass filter and detuner obtain data output, and nRF905 detects the carrier wave of same frequency range, carrier wave detects pin and is put height, when receiving an address that is complementary, the matching addresses pin is put height, when a correct packet receives, nRF905 removes prefix automatically, address and CRC check position, then the DSR pin is put height, microcontroller is put TRX_CE low, and nRF905 enters idle pulley; Microcontroller moves on to data in the microcontroller with certain speed by the SPI mouth, and when all Data Receiving finish, nRF905 puts DSR pin and matching addresses pin low.The A of LBC184, B end is delivered to industrial field bus, and PC is monitored the data of RS485, after receiving new data, and the temperature data of each monitoring point on the new user interface more.
The utility model embodiment adopts the wireless ISM frequency of operation of 433MHz.
The utility model embodiment adopts RS485 standard field data bus, and data rate is 4800bps.
It is 1.6G or more high-grade technical grade PC compatible computer that the utility model embodiment temperature data analysis processing computer adopts CPU, installation and operation Microsoft Windows 2000 operating systems.
Claims (10)
1, the online temperature wireless monitoring system of a kind of allocation transformer equipment, it is characterized in that it is mainly by active wireless temperature sensor (1), wireless temperature data receiver (2), temperature data analysis processing computer (3) three parts are formed, active wireless temperature sensor (1) is installed in allocation transformer equipment to be needed on the monitoring point of thermometric, wireless temperature data receiver (2) is arranged in the correct position in the distribution transforming power station, temperature data analysis processing computer (3) is installed in Allocation transformer station master-control room, link to each other by radio between active wireless temperature sensor (1) and the wireless temperature data receiver (2), be connected by industrial field bus between temperature data analysis processing computer (3) and the wireless temperature data receiver (2).
2, the online temperature wireless monitoring system of allocation transformer equipment according to claim 1 is characterized in that installing in the distribution transforming power station quantity decision of the quantity of radio temperature sensor (1) by the monitoring point, can be 1～tens thousand of.
3, the online temperature wireless monitoring system of allocation transformer equipment according to claim 1, the quantity that it is characterized in that wireless temperature data receiver (2) is installed in the distribution transforming power station is by the area in distribution transforming power station and the quantity and the distributing position decision of monitoring point, and each wireless temperature data receiver can receive the data of radius all radio temperature sensors (1) emission in 100 meters scopes.
4, the online temperature wireless monitoring system of allocation transformer equipment according to claim 1 is characterized in that a distribution transforming power station installs a sleeving temperature data analysis process computer (3) at least.
5, the online temperature wireless monitoring system of allocation transformer equipment according to claim 1 is characterized in that each active wireless temperature sensor (1) has unique ID numbering.
6, the online temperature wireless monitoring system of allocation transformer equipment according to claim 1, it is characterized in that active wireless temperature sensor (1) measures the temperature of monitoring point automatically every a setting-up time, and temperature data that records and ID number of sensor are sent with wireless mode together; Wireless temperature data receiver (2) receives in the monitoring range temperature measuring data of active wireless temperature sensor (1) emission that all can reliable communication and sensor ID number, and buffer-stored is in the receiver internal storage; Temperature data analysis processing computer (3) Automatic Cycle is communicated by letter with receiver successively, reads the monitor temperature data that receive in wireless temperature data receiver (2) internal storage and corresponding sensor ID number; Temperature data analysis processing computer (3) deposits the data of gathering in database, and data are carried out analysis-by-synthesis, and warning is sent in the danger that may exist.
7, the online temperature wireless monitoring system of allocation transformer equipment according to claim 5, it is characterized in that active wireless temperature sensor (1) mainly comprises digital sensor U1, radio transmitting and receiving chip U3, storer EEPROM U2 and power circuit, the MOSI pin of radio transmitting and receiving chip U3 connects the DIN pin of digital sensor U1 and the SI pin of storer EEPROM U2, its MISO pin connects the SO pin of digital sensor DOUT pin and storer EEPROM U2, its SCK pin is digital sensor U1 and storer EEPROM U2 serial clock, and its EECSN pin connects the CS pin of storer EEPROM U2.
8, the online temperature wireless monitoring system of allocation transformer equipment according to claim 1, it is characterized in that wireless temperature data receiver (2) receives the data that a plurality of radio temperature sensors are launched in the monitor area with wireless mode, and data are passed to process computer by industrial field bus.
9, the online temperature wireless monitoring system of allocation transformer equipment according to claim 8, it is characterized in that wireless temperature data receiver (2) mainly comprises radio transmitting and receiving chip U5, storer EEPROM U4, differential data line transceiver UP1 and power circuit, the P01 of radio transmitting and receiving chip U5, P02, P03, the P04 pin meets the DI of differential data line transceiver UP1 respectively, RO ,/RE, DE pin, the A of differential data line transceiver UP1, the B pin is connected with industrial field bus.
10, the online temperature wireless monitoring system of allocation transformer equipment according to claim 1 is characterized in that the radio communication of system can select to work in the ISM frequency of operation of 433MHz, 915MHz or 2450MHz.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200520073967.9U CN2777661Y (en) | 2005-07-27 | 2005-07-27 | On line temp wireless monitoring system for distributing and transforming apparatus |
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| CN200520073967.9U CN2777661Y (en) | 2005-07-27 | 2005-07-27 | On line temp wireless monitoring system for distributing and transforming apparatus |
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| CN200520073967.9U Expired - Fee Related CN2777661Y (en) | 2005-07-27 | 2005-07-27 | On line temp wireless monitoring system for distributing and transforming apparatus |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100595538C (en) * | 2008-06-23 | 2010-03-24 | 上海轶龙应用软件开发有限公司 | Wireless real time temperature monitoring recording method |
| CN102355015A (en) * | 2011-09-07 | 2012-02-15 | 重庆长安汽车股份有限公司 | Distributed battery management system for electric vehicle |
| CN101750985B (en) * | 2008-11-27 | 2012-02-22 | 中国第一汽车股份有限公司 | Remote temperature sensing and monitoring system and method for 0.4kV low voltage switch |
| CN102564625A (en) * | 2010-12-29 | 2012-07-11 | 上海市电力公司 | Wireless temperature sensor |
| CN102566621A (en) * | 2010-12-29 | 2012-07-11 | 上海市电力公司 | Wireless temperature monitoring system for electric power device |
| CN102853941A (en) * | 2012-09-06 | 2013-01-02 | 上海欣影电力科技发展有限公司 | Wireless temperature on-line monitoring system for base station type switch cabinet |
| CN103473907A (en) * | 2013-08-30 | 2013-12-25 | 云南大红山管道有限公司 | Device for automatically detecting and warning temperature rise in medium-voltage frequency converter cabinet and detection method therefor |
| CN103674292A (en) * | 2013-10-18 | 2014-03-26 | 国家电网公司 | Temperature detecting method and apparatus for devices of transformer station |
| CN104658232A (en) * | 2015-03-24 | 2015-05-27 | 唐山现代工控技术有限公司 | Method and device for measuring indoor temperature |
| CN105278511A (en) * | 2015-11-19 | 2016-01-27 | 国家电网公司 | Equipment room temperature intelligent control system |
| CN107907235A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of substation capacitors automatic temperature measurement prior-warning device and method |
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2005
- 2005-07-27 CN CN200520073967.9U patent/CN2777661Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100595538C (en) * | 2008-06-23 | 2010-03-24 | 上海轶龙应用软件开发有限公司 | Wireless real time temperature monitoring recording method |
| CN101750985B (en) * | 2008-11-27 | 2012-02-22 | 中国第一汽车股份有限公司 | Remote temperature sensing and monitoring system and method for 0.4kV low voltage switch |
| CN102564625A (en) * | 2010-12-29 | 2012-07-11 | 上海市电力公司 | Wireless temperature sensor |
| CN102566621A (en) * | 2010-12-29 | 2012-07-11 | 上海市电力公司 | Wireless temperature monitoring system for electric power device |
| CN102355015A (en) * | 2011-09-07 | 2012-02-15 | 重庆长安汽车股份有限公司 | Distributed battery management system for electric vehicle |
| CN102853941A (en) * | 2012-09-06 | 2013-01-02 | 上海欣影电力科技发展有限公司 | Wireless temperature on-line monitoring system for base station type switch cabinet |
| CN103473907A (en) * | 2013-08-30 | 2013-12-25 | 云南大红山管道有限公司 | Device for automatically detecting and warning temperature rise in medium-voltage frequency converter cabinet and detection method therefor |
| CN103674292A (en) * | 2013-10-18 | 2014-03-26 | 国家电网公司 | Temperature detecting method and apparatus for devices of transformer station |
| CN104658232A (en) * | 2015-03-24 | 2015-05-27 | 唐山现代工控技术有限公司 | Method and device for measuring indoor temperature |
| CN105278511A (en) * | 2015-11-19 | 2016-01-27 | 国家电网公司 | Equipment room temperature intelligent control system |
| CN107907235A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | A kind of substation capacitors automatic temperature measurement prior-warning device and method |
| CN107907235B (en) * | 2017-07-14 | 2020-01-10 | 国网浙江省电力公司湖州供电公司 | Automatic temperature measurement early warning device and method for transformer substation capacitor |
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| CF01 | Termination of patent right due to non-payment of annual fee |