CN205910817U - SF6 gas density wireless long -distance monitoring and early warning system - Google Patents
SF6 gas density wireless long -distance monitoring and early warning system Download PDFInfo
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- CN205910817U CN205910817U CN201620801714.7U CN201620801714U CN205910817U CN 205910817 U CN205910817 U CN 205910817U CN 201620801714 U CN201620801714 U CN 201620801714U CN 205910817 U CN205910817 U CN 205910817U
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Abstract
The utility model discloses a SF6 gas density wireless long -distance monitoring and early warning system, including SF6 sensor (1), more than one wireless sensing unit (2), wireless receiving dispensing device (3), server (4), mobile client (6), computer client -side (7), SF6 sensor (1), wireless sensing unit (2), wireless receiving dispensing device (3) and server (4) communication connection, and mobile client (6), computer client -side (7) all with server (4) communication connection. The utility model discloses can realize intelligent remote monitoring of SF6 density temperature and pressure and early warning, monitoring system's reliability is good with stability simultaneously.
Description
Technical field
This utility model be related to a kind of sf6 gas density remotely monitor, early warning system, belong to TT&C system technical field.
Background technology
During at present hydroenergy storage station produces at home, the important indicator data of most equipment (as gis air bound pressure,
The data such as leakage current) need artificial reading, artificial calculating analysis and artificial storage, the level of informatization is relatively low, and impact is given birth to
Produce efficiency and increase production cost;Some equipment easily cause safe duty due to its particularity of place environment, personnel on site's collection
Have a job former, but the monitoring of these data is extremely important to producing;Some important monitoring datas need in time to related director
Early warning (as Leakage Current exceedes warning value), to take measures on customs clearance in time.
Utility model content
Utility model purpose: in order to overcome the deficiencies in the prior art, this utility model provides a kind of sf6 gas close
Degree wireless remote monitoring early warning system, it is capable of sf6 density temperature and the long-range monitoring of pressure intelligentization and early warning.
For achieving the above object, the technical solution adopted in the utility model is: a kind of sf6 gas density wireless remote monitoring
Early warning system, including sf6 sensor (1), more than one wireless sensing unit (2), wireless receiving dispensing device (3), service
Device (4), cell-phone customer terminal (6), computer client (7), described sf6 sensor (1), wireless sensing unit (2), wireless receiving are sent out
Send device (3) and server (4) communication connection, and described cell-phone customer terminal (6), computer client (7) all with server (4)
Communication connection, wherein:
Sf6 sensor (1), responsible sf6 gas data information gathering;
Wireless sensing unit (2), wireless sensing unit (2) controls sf6 sensor (1) work, and sf6 sensor (1) is adopted
The data is activation collecting is to wireless receiving dispensing device (3);
Wireless receiving dispensing device (3), is responsible for receiving the upper data sent out of wireless sensing unit (2), simultaneously by wireless sensing
Unit (2) data packing processes and is sent to server (4);The reception server (4) is sent to the instruction of wireless sensing unit (2),
And this instruction is issued to wireless sensing unit (2);The reception server (4) is sent to the SMS of specified mobile phone number,
And this SMS is issued to specified mobile phone number;
Server (4), described server includes threshold value memory module data contrast module, and described server is responsible for reception
Data that wireless receiving dispensing device (3) sends simultaneously stores to this data, and threshold value memory module is used for storing threshold value, data
The data that contrast module is used for sending wireless receiving dispensing device 3 is compared with the threshold value of storage, if being more than threshold value, controls
Wireless receiving dispensing device (3) processed sends instructions to wireless sensing unit (2), controls wireless receiving dispensing device (3) to send out simultaneously
Send SMS to specified mobile phone number;Described server (4) passes through internet and computer client (7), cell phone customer
End (6) is connected, and by tcp/ip mode and computer client (7) and cell-phone customer terminal (6) communication, response computer visitor simultaneously
The data request operation of family end (7) and cell-phone customer terminal (6) and parameter setting operation;
Cell-phone customer terminal (6), is communicated by tcp/ip mode with server (4), and can be by cell-phone customer terminal (6) to clothes
Business device (4) request operation;
Computer client (7), is communicated by tcp/ip mode with server (4), and can be by computer client (7) to clothes
Business device (4) request operation and parameter setting operation.
Preferred: described sf6 sensor (1) gathers sf6 gas data information and includes the density of sf6 gas, temperature, pressure
Power, Wei Shui.
Preferred: described wireless sensing unit (2) adopts short-distance wireless radiofrequency signal with wireless receiving dispensing device (3)
Carry out both-way communication, communication frequency is 433mhz.
Preferred: wireless sensing unit (2) passes through periodically to open sf6 sensor (1) and gather sf6 sensor (1)
The data is activation arriving is to wireless receiving dispensing device (3);Wireless sensing unit (2) is uploading data to wireless receiving every time simultaneously
A time window can be opened after dispensing device (3) be used for receiving the control instruction that wireless receiving dispensing device (3) issues, this control
System instruction includes arranging wireless sensing unit (2) sleep cycle, time window size, data re-transmitting number of times.
Preferred: wireless receiving dispensing device (3) uses wireless srd radio frequency chip cc1101 and wireless sensing unit (2)
Carry out data communication.
Preferred: described wireless receiving dispensing device (3) and wireless sensing unit (2) carry out data communication and adopt data to prevent
By data anticollision mechanism cca, collision molange cca, detects whether the free time decides whether to send data channel, if letter
Road hurry explanation space in there is characteristic frequency radiofrequency signal, now need send data equipment need stop send data until
Channel idle.
Preferred: described wireless receiving dispensing device (3) receives what all wireless sensing units (2) in a period of time sent
Data packing is transmitted wire-lessly to system server (4) by gprs after processing.
Preferred: described cell-phone customer terminal (6) asks operation inclusion to check system monitoring state and sf6 to server (4)
Sensing data, when there are abnormal conditions, server (4) pushes early warning to cell-phone customer terminal (6);Described computer client
The parameter setting operation at end (7) includes sf6 sensor acquisition frequency and short message warning number.
Preferred: described cell-phone customer terminal (6) asks operation inclusion to check system monitoring state and sf6 to server (4)
Sensing data, when there are abnormal conditions, server (4) pushes early warning to specified mobile phone number.
Effective: described sf6 sensor (1) adopts gdi+gdt-20sf6 sensor, wherein gdi is mechanical type density meter,
Gdt-20 is digital sf6 sensor;Wireless sensing unit adopts cc430 microcontroller;Described wireless receiving dispensing device (3)
Using stm32 high-performance processor.
A kind of sf6 gas density wireless remote monitoring early warning system that this utility model provides, compared to existing technology, has
Following beneficial effect:
1st, sf6 intellectuality long-distance wireless monitoring, timely early warning sf6 gas leakage are achieved, effective control greenhouse gases are arranged
Put.
2nd, data analysis, automatically storage, automatic remote early warning are achieved, managing for sf6 equipment state overhauling provides
Science and feasibility.
3rd, solve wireless sensor device in high pressure equipment radio interference (electromagnetic compatibility) problem it is ensured that monitoring system
The reliability and stability of system.
4th, eliminate manual read's table handling, effectively increase the productivity, improve personnel safety.
5th, sf6 measuring density system is installed and need not be connected up, and quick and easy for installation, good looking appearance is generous.
Brief description
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of this utility model application system.
Wherein, 1 be sf6 sensor, 2 be wireless sensing unit, 3 be wireless receiving dispensing device, 4 be server, 5 be handss
Machine short message, 6 be cell-phone customer terminal, 7 be computer client.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is further described.
A kind of sf6 gas density wireless remote monitoring early warning system, including sf6 sensor 1, more than one wireless sensing
Unit 2, wireless receiving dispensing device 3, server 4, cell-phone customer terminal 6, computer client 7, described sf6 sensor 1, wireless biography
Sense unit 2, wireless receiving dispensing device 3 and server 4 communicate to connect, and described cell-phone customer terminal 6, computer client 7 are equal
Communicate to connect with server 4.As shown in Figure 1, 2, sf6 sensor 1 and wireless sensing unit 2 pass through cable connection, wireless sensing
Unit 2 and wireless receiving dispensing device 3 use short-distance wireless radiofrequency signal to communicate.Wireless receiving dispensing device 3 is in server 4
The short breath of mobile phone 5 can be sent under controlling and arrive specified mobile phone number.Wireless receiving dispensing device 3 accesses wireless mobile by gprs mode
Communication network and telecom operators' base station communication, wireless receiving dispensing device 3 is accessed internet and service by operator base station
Device 4 communicates.Cell-phone customer terminal 6 is connected by internet with server 4.Computer client 7 is passed through with server 4
Internet is connected.
Sf6 sensor 1, responsible sf6 gas data information gathering;Sf6 sensor 1 can gather sf6 gas data information
Including parameters such as the density of sf6 gas, temperature, pressure, micro- water.The sf6 sensor that the system uses is German Wei Ka company sf6
Gas sensor, model: gdi+gdt-20sf6 sensor, wherein gdi are mechanical type density meter, gdt-20 is digital sf6
Sensor, this sensor can measure sf6 gas density, temperature, pressure value.Gdt-20 sensor application is airtight in long term monitoring
Related gas condition parameter in container, sensor can carry out the virial equation computing of complexity using powerful microprocessor,
Calculate the density of current gas by pressure and temperature.This sensor can compensate for the pressure change that heat effect causes, it is to avoid shadow
Ring output valve.By changing different sensors, the system can realize different physical measurement, and water as micro- in gas etc. is surveyed
Amount.Sensor output interface is rs-485 interface, supports modbus rtu protocol.
Wireless sensing unit 2, wireless sensing unit 2 controls sf6 sensor 1 to work, the number that sf6 sensor 1 is collected
According to transmission to wireless receiving dispensing device 3;Wireless sensing unit 2 is powered using disposable high power lithium battery.Described wireless sensing
Unit 2 and wireless receiving dispensing device 3 carry out both-way communication using short-distance wireless radiofrequency signal, and communication frequency is 433mhz.
Wireless sensing unit adopts ti company product cc430 microcontroller, this microcontroller integrated high-performance msp430 single-chip microcomputer kernel
And srd radio frequency communication chip cc1101.Cc430 has the very outstanding super low-power consumption of industry and excellent in performance.Wireless sensing list
First 2 working mechanisms are that the data is activation periodically opened sf6 sensor 1 and collect sf6 sensor 1 sends to wireless receiving
Device 3 is in sleep state at ordinary times, can close sensor in sleep state to reduce the consumption to the energy content of battery, wireless sensing list
Close, cc430 is set to super low-power consumption state.Wireless sensing unit 2 is after uploading data to wireless receiving dispensing device 3 every time simultaneously
A time window can be opened for receiving the control instruction that wireless receiving dispensing device 3 issues, this control instruction includes arranging
Wireless sensing unit 2 sleep cycle, time window size, data re-transmitting number of times etc..Wireless sensing unit 2 include microcontroller,
The ingredients such as sf6 sensor interface circuitry, power supply module.
Wireless receiving dispensing device 3, is responsible for carrying out full duplex communication with wireless sensing unit 2 server 4 and sends handss
Machine note;It is responsible for the data sent out being received on wireless sensing unit 2, simultaneously by more than one wireless sensing unit 2 data multiple
Packing processes and is sent to server 4;The reception server 4 is sent to the instruction of wireless sensing unit 2, and this instruction is issued to no
Line sensing unit 2;The reception server 4 is sent to the SMS of specified mobile phone number, and this SMS is issued to
Specified mobile phone number;Wireless receiving dispensing device 3 completes to coordinate modules operation using stm32 high-performance processor and completes
Service logic, adopts embedded OS rtx to dispatch each task to realize the logic function of complexity in stm32 processor.
Wireless receiving dispensing device 3 carries out data communication using high-performance wireless srd radio frequency chip cc1101 with wireless sensing unit.No
Line transmission and reception apparatus are operated together in 433mhz less radio-frequency frequency with multiple wireless sensing unit communications, equipment, in order to
Each wireless sensing unit radiofrequency signal conflict is avoided to lead to system operation irregularity, system achieves advance data anticollision mechanism
Cca, that is, described wireless receiving dispensing device 3 and wireless sensing unit 2 carry out data communication and adopt data anticollision mechanism cca,
Detect whether the free time decides whether to send data channel by data anticollision mechanism cca, if channel busy explanation space
In there is characteristic frequency radiofrequency signal, now need send data equipment need stop send data until channel idle.
Excellent described wireless receiving dispensing device 3 receives the data packing that in a period of time, all wireless sensing units 2 send
After process, system server 4 is transmitted wire-lessly to by gprs.Wireless receiving dispensing device can be with reception system server 4
That sends out instructs and parses, and executes corresponding action according to analysis result, and such as system server automatic early-warning mechanism can control no
It is abnormal to specified mobile phone number prompting related personnel's sf6 gas density that line transmission and reception apparatus send SMS.Wireless receiving
Dispensing device uses simcom company gprs module sim900a, this module can realize data access wireless communication networks and
Send the functions such as the short breath of mobile phone.Wireless receiving dispensing device 3 adopts 220v industrial-frequency alternating current to work, and hands over 220v through internal circuit
Stream Power convert is for providing working power for internal modules after 5v DC source.
Server 4, server is data processing, the core of data operation.It is responsible for completing the automatic storage of data, automatically divide
Analysis, automatic early-warning function;It is responsible for receiving the data that wireless receiving dispensing device 3 sends, and this data is carried out storing, analyzes
And early warning;Its analysis method is: set a threshold value first, when the data that wireless receiving dispensing device 3 sends exceedes threshold value,
Then judge that this data exceedes warning value.When the data that wireless receiving dispensing device 3 sends is in threshold range, then assert this number
According to for normal data.The software program that this analysis method is realized or the circuit of realization are fairly simple, those skilled in the art according to
The method can easily design corresponding circuit or software program.Therefore, this server there are a threshold value to deposit
Storage module data contrast module, threshold value memory module is used for storing threshold value, and Data Comparison module is used for sending wireless receiving
The data that device 3 sends is compared contrast with the threshold value of storage, if being more than threshold value, judges that this data exceedes warning value, instead
It, assert that this data is normal data.Server, as tcp server end, needs there is fixing ip address.Server with
Communication between gprs module is full duplex communication.By full duplex mode, server can be transmitted with reception processing gprs module
The data come, can also notify after data processing finishes whether gprs module is necessary to send the functions such as short message.Service
Device 4 is connected with computer client 7, cell-phone customer terminal 6 also by internet, and server 4 is by tcp/ip mode and computer
Client and cell phone customer end communication.Server can respond data request operation and the ginseng of computer client and cell-phone customer terminal
Number setting operation.According to analysis result, wireless receiving dispensing device 3 is controlled to send instructions to wireless sensing unit 2, that is, when line connects
The data transmitting and receiving device 3 transmission when exceeding threshold value, controls wireless receiving dispensing device 3 to send instructions to wireless sensing unit 2;
According to early warning mechanism, control wireless receiving dispensing device 3 to send SMS to specified mobile phone number, send when line receives
When the data that device 3 sends exceedes threshold value, wireless receiving dispensing device 3 is controlled to send SMS to specified mobile phone number;
Described server 4 is connected with computer client 7, cell-phone customer terminal 6 by internet, and by tcp/ip mode and computer
Client 7 and cell-phone customer terminal 6 communicate, simultaneously the data request operation of response computer client 7 and cell-phone customer terminal 6 and parameter
Setting operation;
Mobile phone short message 5: after server automatically analyzes to sf6 sensing data, abnormal meeting automatic early-warning leads to if monitoring
Know that wireless receiving dispensing device 3 sends SMS to specified mobile phone number;
Cell-phone customer terminal 6, cell-phone customer terminal is responsible for system data and is shown, the function such as parameter setting.By cell-phone customer terminal
State and the inquiry of historical data can be transported in real time with inquiry system, the function such as statistics display, early warning show.Pass through with server 4
Tcp/ip mode communicates, and can ask operation by cell-phone customer terminal 6 to server 4;Described cell-phone customer terminal 6 is to server 4
System monitoring state and sf6 sensing data are checked in request operation inclusion, and when there are abnormal conditions, server 4 is to cell phone customer
End 6 push early warning;The parameter setting operation of described computer client 7 includes sf6 sensor acquisition frequency and short message warning
Number.
Described cell-phone customer terminal 6 asks operation inclusion to check system monitoring state and sf6 sensing data to server 4,
When there are abnormal conditions, server 4 pushes early warning to specified mobile phone number.
Computer client 7, brain client 7 is realized system data and is shown, the function such as parameter setting.Can by computer client
Function is shown etc. with inquiry system real-time running state and the inquiry of historical data, statistics display, early warning.Pass through with server 4
Tcp/ip mode communicates, and can ask operation and parameter setting operation by computer client 7 to server 4.
Led to by rf 433mhz radio frequency signal between wireless sensing unit 1 and wireless receiving dispensing device 2
News, a wireless receiving dispensing device can be with multiple wireless sensing unit communications working in same radio-frequency channel.Different
Wireless receiving dispensing device operates in different radio-frequency channels to avoid producing each other interference.Wireless receiving dispensing device 2
Telecom operators base station 3 is transferred data to by gprs radio mobile communication technology, telecom operators base station 3 is by data access
Internet is simultaneously sent to server 4.SMS 6 can be sent to by wireless receiving dispensing device 2 by base station specifies
Number is to realize early warning SMS informing function.Cell-phone customer terminal 5 and computer client 7 are all by internet and server
4 are connected.Cell-phone customer terminal and computer client to server request Monitoring Data and can issue arrange parameter and instruct clothes
Business device, server does corresponding operating to after instruction parsing.
From the foregoing, this system is the application example in power system on-line monitoring for the technology of Internet of things, whole system is adopted
Use wireless transmission scheme.The parameters such as the density of wireless sensing unit collection sf6, pressure, temperature, are sent to by short-distance wireless
Wireless receiving dispensing device, wireless receiving dispensing device passes through mobile network gprs and the Internet converged, by the data collecting
It is sent to system database server, server, computer client, cell-phone customer terminal jointly complete data analysis, automatically deposit
Storage, automatic early-warning function.The system realizes the wireless network that sf6 density temperature and the long-range monitoring of pressure intelligentization and early warning are integrated
Network system.The system is that technology of Internet of things is applied in one of TT&C system example.
This utility model based on various sensor technologies, with the Internet and computer technology for the Internet of Things supporting
(internet of things) technology is introduced in the production of hydroenergy storage station, not only can solve various in background technology
A difficult problem, and remote data monitoring can be provided, distant early warning data computer automatic analysis etc., thus effectively increase life
Produce efficiency, from avoiding security incident at all.
The above be only preferred implementation of the present utility model it should be pointed out that: for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (10)
1. a kind of sf6 gas density wireless remote monitoring early warning system it is characterised in that: include sf6 sensor (1), one with
On wireless sensing unit (2), wireless receiving dispensing device (3), server (4), cell-phone customer terminal (6), computer client
(7), described sf6 sensor (1), wireless sensing unit (2), wireless receiving dispensing device (3) and server (4) communication link
Connect, and described cell-phone customer terminal (6), computer client (7) all communicated to connect with server (4), wherein:
Sf6 sensor (1), responsible sf6 gas data information gathering;
Wireless sensing unit (2), wireless sensing unit (2) controls sf6 sensor (1) work, and sf6 sensor (1) is collected
Data is activation to wireless receiving dispensing device (3);
Wireless receiving dispensing device (3), is responsible for receiving the upper data sent out of wireless sensing unit (2), simultaneously by wireless sensing unit
(2) data packing processes and is sent to server (4);The reception server (4) is sent to the instruction of wireless sensing unit (2), and will
This instruction is issued to wireless sensing unit (2);The reception server (4) is sent to the SMS of specified mobile phone number, and will
This SMS is issued to specified mobile phone number;
Server (4), described server includes threshold value memory module data contrast module, and described server is responsible for receiving wirelessly
Data that transmission and reception apparatus (3) send simultaneously stores to this data, and threshold value memory module is used for storing threshold value, Data Comparison
The data that module is used for sending wireless receiving dispensing device 3 is compared with the threshold value of storage, if being more than threshold value, controls no
Line transmission and reception apparatus (3) send instructions to wireless sensing unit (2), control wireless receiving dispensing device (3) to send handss simultaneously
Machine short message is to specified mobile phone number;Described server (4) passes through internet and computer client (7), cell-phone customer terminal (6)
It is connected, and by tcp/ip mode and computer client (7) and cell-phone customer terminal (6) communication, respond computer client simultaneously
And the data request operation of cell-phone customer terminal (6) and parameter setting operation (7);
Cell-phone customer terminal (6), is communicated by tcp/ip mode with server (4), and can be by cell-phone customer terminal (6) to server
(4) request operation;
Computer client (7), is communicated by tcp/ip mode with server (4), and can be by computer client (7) to server
(4) request operation and parameter setting operation.
2. sf6 gas density wireless remote monitoring early warning system according to claim 1 it is characterised in that: described sf6 passes
Sensor (1) gathers sf6 gas data information and includes the density of sf6 gas, temperature, pressure, Wei Shui.
3. sf6 gas density wireless remote monitoring early warning system according to claim 2 it is characterised in that: described wireless
Sensing unit (2) and wireless receiving dispensing device (3) carry out both-way communication using short-distance wireless radiofrequency signal, and communication frequency is
433mhz.
4. sf6 gas density wireless remote monitoring early warning system according to claim 3 it is characterised in that: wireless sensing
The data is activation that unit (2) passes through periodically to open sf6 sensor (1) and collect sf6 sensor (1) is sent out to wireless receiving
Send device (3);Wireless sensing unit (2) can open one after uploading data to wireless receiving dispensing device (3) every time simultaneously
Time window is used for receiving the control instruction that wireless receiving dispensing device (3) issues, and this control instruction includes arranging wireless sensing
Unit (2) sleep cycle, time window size, data re-transmitting number of times.
5. sf6 gas density wireless remote monitoring early warning system according to claim 1 it is characterised in that: wireless receiving
Dispensing device (3) carries out data communication using wireless srd radio frequency chip cc1101 with wireless sensing unit (2).
6. sf6 gas density wireless remote monitoring early warning system according to claim 5 it is characterised in that: described wireless
Transmission and reception apparatus (3) and wireless sensing unit (2) carry out data communication and adopt data anticollision mechanism cca, are prevented by data
Whether the free time decides whether to send data collision molange cca detection channel, if existing specific in channel busy explanation space
Frequency RF signal, now needs the equipment sending data to need to stop sending data until channel idle.
7. sf6 gas density wireless remote monitoring early warning system according to claim 6 it is characterised in that: described wireless
Transmission and reception apparatus (3) receive after the data packing that in a period of time, all wireless sensing units (2) send is processed and pass through gprs
It is transmitted wire-lessly to system server (4).
8. sf6 gas density wireless remote monitoring early warning system according to claim 1 it is characterised in that: described mobile phone
Client (6) asks operation inclusion to check system monitoring state and sf6 sensing data to server (4), and abnormal feelings are occurring
During condition, server (4) pushes early warning to cell-phone customer terminal (6);The parameter setting operation of described computer client (7) includes
Sf6 sensor acquisition frequency and short message warning number.
9. sf6 gas density wireless remote monitoring early warning system according to claim 1 it is characterised in that: described mobile phone
Client (6) asks operation inclusion to check system monitoring state and sf6 sensing data to server (4), and abnormal feelings are occurring
During condition, server (4) pushes early warning to specified mobile phone number.
10. sf6 gas density wireless remote monitoring early warning system according to claim 1 it is characterised in that: described sf6
Sensor (1) adopts gdi+gdt-20sf6 sensor, and wherein gdi is mechanical type density meter, and gdt-20 is digital sf6 sensing
Device;Wireless sensing unit adopts cc430 microcontroller;Described wireless receiving dispensing device (3) adopts stm32 high-performance treatments
Device.
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107749158A (en) * | 2017-10-23 | 2018-03-02 | 中国电力科学研究院有限公司 | A kind of system and method for long-range monitoring Puffer-type power equipment air pressure |
CN107835236A (en) * | 2017-10-30 | 2018-03-23 | 中国电力科学研究院有限公司 | A kind of Puffer-type power equipment air pressure long-distance monitoring method and system |
CN108007817A (en) * | 2017-12-14 | 2018-05-08 | 中国电力科学研究院有限公司 | A kind of long range gas-insulated transmission line SF6Gas density monitors system and method |
CN108270850A (en) * | 2017-12-29 | 2018-07-10 | 山东大学 | It is a kind of based on the air patrolling and checking management system of Android hand-held sets and its application |
CN108918774A (en) * | 2018-06-21 | 2018-11-30 | 南方电网科学研究院有限责任公司 | A kind of SF6 gas density is detection method and system |
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2016
- 2016-07-27 CN CN201620801714.7U patent/CN205910817U/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107749158A (en) * | 2017-10-23 | 2018-03-02 | 中国电力科学研究院有限公司 | A kind of system and method for long-range monitoring Puffer-type power equipment air pressure |
CN107835236A (en) * | 2017-10-30 | 2018-03-23 | 中国电力科学研究院有限公司 | A kind of Puffer-type power equipment air pressure long-distance monitoring method and system |
CN108007817A (en) * | 2017-12-14 | 2018-05-08 | 中国电力科学研究院有限公司 | A kind of long range gas-insulated transmission line SF6Gas density monitors system and method |
CN108270850A (en) * | 2017-12-29 | 2018-07-10 | 山东大学 | It is a kind of based on the air patrolling and checking management system of Android hand-held sets and its application |
CN108918774A (en) * | 2018-06-21 | 2018-11-30 | 南方电网科学研究院有限责任公司 | A kind of SF6 gas density is detection method and system |
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