CN110248332A - A kind of substation field SF6 leakage alarm monitoring device and monitoring method - Google Patents
A kind of substation field SF6 leakage alarm monitoring device and monitoring method Download PDFInfo
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- CN110248332A CN110248332A CN201910628690.8A CN201910628690A CN110248332A CN 110248332 A CN110248332 A CN 110248332A CN 201910628690 A CN201910628690 A CN 201910628690A CN 110248332 A CN110248332 A CN 110248332A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 54
- 238000012806 monitoring device Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 9
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910018503 SF6 Inorganic materials 0.000 claims description 22
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000009408 flooring Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009414 blockwork Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0031—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array
- G01N33/0032—General constructional details of gas analysers, e.g. portable test equipment concerning the detector comprising two or more sensors, e.g. a sensor array using two or more different physical functioning modes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0068—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a computer specifically programmed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0073—Control unit therefor
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/38—Services specially adapted for particular environments, situations or purposes for collecting sensor information
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- H02J13/0013—
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
-
- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S40/00—Systems 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
- Y04S40/12—Systems 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
- Y04S40/126—Systems 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
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- Immunology (AREA)
- Combustion & Propulsion (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Alarm Systems (AREA)
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Abstract
The invention discloses a kind of substation field SF6Leakage alarm monitoring device and monitoring method, monitoring modular and monitoring host pass through ROLA wireless network connection；Monitoring modular is powered by battery；Host side LORA module sends data requesting instructions；Sensor side LORA module receives data in a power-save mode；Sensor side LORA module is by the data forwarding received to processor；Sensor side LORA module is set operating mode by processor, and sends back complex data to sensor side LORA module；Sensor side LORA module will reply data forwarding to host side LORA module, and monitoring host is made to receive reply data；After sensor side LORA module reply data are sent, sensor side LORA module is set battery saving mode by processor；It solves and is limited by wiring by irremovable position, there are problems that flexibility difference；Solve field wiring trouble, surface the wire casing problems such as unsightly.
Description
Technical field
The invention belongs to substation SF6Leak detection technology more particularly to a kind of substation field SF6Leakage alarm monitoring
Device and monitoring method.
Background technique
The substation field SF of the prior art6Leakage alarm monitoring device SF6Leakage alarm monitoring device mainly includes monitoring
Host and monitoring modular, a monitoring host or are attached with the multiple monitoring modulars in scene；It is distributed in the monitoring mould of each point
Block is required to carry out power-supply wiring and communication wires, these cables once arrange monitoring point when being embedded under cement flooring, by cloth
Line is limited irremovable position, if it is poor there are flexibility the problems such as, be routed by wire casing, that there are field wirings is troublesome,
The surface wire casing problems such as unsightly.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of substation field SF6Leakage alarm monitoring device and monitoring
Method is distributed in the monitoring modular of each point to solve substation field and is required to carry out power-supply wiring and communication wires, these
Monitoring point is once arranged when cable is embedded under cement flooring, is limited by wiring by irremovable position, there are flexibility differences etc.
If problem, be routed by wire casing, there are field wiring trouble, surface the wire casing problems such as unsightly.
The technical scheme is that
A kind of substation field SF6Leakage alarm monitoring device, it includes: monitoring host and monitoring modular, the monitoring modular
Pass through ROLA wireless network connection with monitoring host；The monitoring modular is powered by battery.
The monitoring modular includes the MSP430F235 low power processor based on TI, MSP430F235 low power processor
It is connect with sensor unit；MSP430F235 low power processor is connect with sensor side LORA module conducting wire；The sensor
Unit includes oxygen sensor and sulfur hexafluoride sensor；Oxygen sensor and sulfur hexafluoride sensor pass through respectively A/D module with
The connection of MSP430F235 low power processor.
Monitoring host includes GPRS repeat circuit plate, 100Mbps forwarded circuit board based on STM32F103, is based on
The GPRS repeat circuit plate of STM32F103 is connected with 100Mbps forwarded circuit board by RS232；Based on STM32F103's
GPRS repeat circuit plate is connect with host side LORA module conducting wire.
A kind of monitoring method of substation field SF6 leakage alarm monitoring device, it includes:
Step 1, host side LORA module send data requesting instructions；
Step 2, sensor side LORA module receive data in a power-save mode；
Step 3, sensor side LORA module give the data forwarding received to MSP430F235 low power processor；
Sensor side LORA module is set operating mode by step 4, MSP430F235 low power processor, and sends back plural number
According to sensor side LORA module；
Step 5, sensor side LORA module will reply data forwarding to host side LORA module, and monitoring host is made to receive reply
Data；
Step 6, sensor side LORA module are replied after data are sent, and MSP430F235 low power processor is by sensor side
LORA module is set as battery saving mode.
The invention has the advantages that:
The processor of monitoring modular is designed as MSP430F235 low power processor by the present invention, which is a with essence
16 ultralow-power-consumixedn mixedn type single-chip microcontrollers of simple instruction set, under low-power consumption mode, operating current is less than 0.5mA；It therefore can
To be powered by battery, to avoid power supply line is laid；By integrating LORA module in MSP430F235 low power processor,
Monitoring modular data information is wirelessly transmitted to monitoring host by LORA module, avoids laying signal wire；The present invention is using narrow
The Wireless detection module that research and development low-power consumption is designed with Internet of Things LORA transmission technology, conveniently layouts, sends data to host.It is main
Machine function is functional outer in addition to having GPRS protocol conversion module institute, be provided simultaneously with wireless sensor module data receiver handle and
The functions such as air-blower control, real-time display；There is LORA protenchyma networking transport extremely low power dissipation to be disobeyed using linear spread spectrum
The existing cellular base station of Lai Yu, without SIM card can independent networking, operation frequency range be 470-518MHz, transmission range be 1 ~ 3km, have
There is stronger penetrability, particularly suitable for substation's regional area ad hoc network, then concentrates forwarding；Due to host of the present invention and prison
Surveying between module does not have any cable, therefore monitoring terminal easy to remove, improves monitoring flexibility；Solves substation field
The monitoring modular for being distributed in each point is required to carry out power-supply wiring and communication wires, one when these cables are embedded under cement flooring
Denier arranges monitoring point, is limited by wiring by irremovable position, if it is poor there are flexibility the problems such as, by wire casing be routed,
Then there are field wiring trouble, surface the wire casing problems such as unsightly.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is present invention monitoring main machine structure schematic diagram；
Fig. 3 is monitoring modular structural schematic diagram of the present invention.
Specific embodiment
A kind of substation field SF6Leakage alarm monitoring device, it includes: monitoring host and monitoring modular, the monitoring
Module and monitoring host pass through ROLA wireless network connection；The monitoring modular is powered by battery.
The monitoring modular includes the MSP430F235 low power processor based on TI, MSP430F235 low power processor
It is connect with sensor unit；MSP430F235 low power processor and sensor side LORA module pass through Transistor-Transistor Logic level interface lead
Connection；The sensor unit includes oxygen sensor and sulfur hexafluoride sensor；Oxygen sensor and sulfur hexafluoride sensor
It is connect respectively by A/D module with MSP430F235 low power processor.
Monitoring modular is powered using battery, is guarantee entire module continuous work 1 year or more, low power dissipation design is the present invention
Key；The present invention uses the MSP430F235 low power processor based on TI, and the MSP430 of TI is a with reduced instruction
16 ultralow-power-consumixedn mixedn type single-chip microcontrollers of collection, under low-power consumption mode, operating current is less than 0.5mA, is particularly suitable for adopting
The battery-powered occasion to work long hours.
Sensor unit selects intelligent oxygen sensor and sulfur hexafluoride sensor；Wherein, O2Sensor accuracy be ±
2%FS, range 0-25%, SF6Sensor testing principle is infrared optical absorption, SF6Sensor accuracy is ± 3%FS, and range is
0-3000 μ L/L, power supply 5V.For low power operation, power supply sampling is controlled by CPU using at interval of 15min
Once, power supply is disconnected after sampling；To save battery supply as far as possible.
Monitoring host includes GPRS repeat circuit plate, 100Mbps forwarded circuit board based on STM32F103, is based on
The GPRS repeat circuit plate of STM32F103 is connected with 100Mbps forwarded circuit board by RS232；Based on STM32F103's
GPRS repeat circuit plate is connect with host side LORA module conducting wire.
Monitor GPRS repeat circuit plate, 100Mbps forwarded circuit board of the host based on STM32F103；100Mbps net
Network repeat circuit plate is as the principle of GPRS protocol forward module.LORA module directlys adopt positive point atom wireless module, adopts
It is interacted with the serial ports of Transistor-Transistor Logic level interface and STM32F103, while information friendship is carried out by IO and I2C and switch control plate
Mutually.Relay status is controlled by IO between switch control plate and main control chip STM32F103, to control warning output and wind
Machine state passes through I2C bus transfer temperature and humidity state value.Simultaneous Switching control panel takes into account power supply processing function.
The main control chip of 100Mbps forwarded circuit board also uses STM32F103, and network chip uses 100 m ethernet
Chip DM9000.
Host is monitored using the ARM chip STM32F103 of ST Microelectronics as control master chip, GPRS modulates core
Piece uses SIM900A, it is the GSM/GPRS module for aiming at the nations of China and India Market Design, the frequency range of work are as follows: EGSM
900MHz and DCS 1800MHz has SIM card interface, and carries out data interaction using serial interface and MCU.Control master chip
Reserved 485 interfaces can upload bus with existing leakage alarm host 485 and carry out doubling, parse existing upload data and realize data
Forwarding.100M forwarded circuit board, the data extremely station end Intranet that forwarding STM32F103 is transmitted by RS232 are designed simultaneously.
Directional transmission patterns are used between host side LORA module and sensor side LORA module, host module address is
0XFFFF, then the module is in broadcast listening mode, and the data of transmission can be owned with other of phase same rate and channel
Sensor module receives (broadcast)；The data transmission of all modules on phase same rate and channel can be monitored simultaneously.
A kind of monitoring method of substation field SF6 leakage alarm monitoring device, it includes:
Step 1, host side LORA module send data requesting instructions；
Step 2, sensor side LORA module receive data in a power-save mode；
Step 3, sensor side LORA module give the data forwarding received to MSP430F235 low power processor；
Sensor side LORA module is set operating mode by step 4, MSP430F235 low power processor, and sends back plural number
According to sensor side LORA module；
Step 5, sensor side LORA module will reply data forwarding to host side LORA module, and monitoring host is made to receive reply
Data；
Step 6, sensor side LORA module are replied after data are sent, and MSP430F235 low power processor is by sensor side
LORA module is set as battery saving mode.
Specifically: sensor side LORA module is communicated by Transistor-Transistor Logic level with MSP430F235, sensor side LORA mould
Block works in battery saving mode, and sensor side LORA module is in module in a dormant state in this operating mode, and serial ports will close
It closes, the serial data from external MCU can not be received, do not have the function of wireless transmission in this mode, can only periodically listen to
External wireless data, after by effective wake-up code, sensor side LORA module will be continuously in reception state, wait
It is received to entire effective data packets, then AUX is exported high level by sensor side LORA module, and postpones 20ms
Afterwards, open serial ports for the wireless data received by TXD sending, after AUX exported into low level.MSP430F235 is received
General modfel is set by sensor side LORA module after to serial data and is also operating mode, and replies to monitoring host number
According to battery saving mode being set by sensor side LORA module again after being sent, to realize low-power consumption requirement.
Claims (4)
1. a kind of substation field SF6Leakage alarm monitoring device, it includes: monitoring host and monitoring modular, it is characterised in that:
The monitoring modular and monitoring host pass through ROLA wireless network connection；The monitoring modular is powered by battery.
2. a kind of substation field SF6 leakage alarm monitoring device according to claim 1, it is characterised in that: the prison
Surveying module includes the MSP430F235 low power processor based on TI, and MSP430F235 low power processor and sensor unit connect
It connects；MSP430F235 low power processor is connect with sensor side LORA module conducting wire；The sensor unit includes that oxygen passes
Sensor and sulfur hexafluoride sensor；Oxygen sensor and sulfur hexafluoride sensor pass through A/D module function low with MSP430F235 respectively
Consume processor connection.
3. a kind of substation field SF6 leakage alarm monitoring device according to claim 1, it is characterised in that: monitoring master
Machine includes GPRS repeat circuit plate, 100Mbps forwarded circuit board based on STM32F103, the GPRS based on STM32F103
Repeat circuit plate is connected with 100Mbps forwarded circuit board by RS232；GPRS repeat circuit plate based on STM32F103
It is connect with host side LORA module conducting wire.
4. a kind of monitoring method of substation field SF6 leakage alarm monitoring device as described in claim 1, feature exist
In: it includes:
Step 1, host side LORA module send data requesting instructions；
Step 2, sensor side LORA module receive data in a power-save mode；
Step 3, sensor side LORA module give the data forwarding received to MSP430F235 low power processor；
Sensor side LORA module is set operating mode by step 4, MSP430F235 low power processor, and sends back plural number
According to sensor side LORA module；
Step 5, sensor side LORA module will reply data forwarding to host side LORA module, and monitoring host is made to receive reply
Data；
Step 6, sensor side LORA module are replied after data are sent, and MSP430F235 low power processor is by sensor side
LORA module is set as battery saving mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628690.8A CN110248332A (en) | 2019-07-12 | 2019-07-12 | A kind of substation field SF6 leakage alarm monitoring device and monitoring method |
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| CN201910628690.8A CN110248332A (en) | 2019-07-12 | 2019-07-12 | A kind of substation field SF6 leakage alarm monitoring device and monitoring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309098A (en) * | 2020-10-27 | 2021-02-02 | 福建优迪电力技术有限公司 | Passive wireless SF6 gas detection device capable of realizing fan linkage |
| CN112750293A (en) * | 2021-01-18 | 2021-05-04 | 内蒙古京科发电有限公司 | System and method for realizing data wireless transmission of light measurement station |
| CN115855171A (en) * | 2023-03-02 | 2023-03-28 | 山东铁马电气科技发展有限公司 | Online monitoring and alarming system for gas in SF6 electrical equipment and implementation method |
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| US20160131624A1 (en) * | 2014-03-20 | 2016-05-12 | Chugai Technos Corporation | Carbon dioxide ground leakage monitoring system |
| CN207907948U (en) * | 2018-03-23 | 2018-09-25 | 济南祥控自动化设备有限公司 | Coal yard ambient intelligence monitoring system |
| CN108986438A (en) * | 2018-08-17 | 2018-12-11 | 上海海事大学 | A kind of gantry crane data wireless monitor system based on LoRa |
| CN109064727A (en) * | 2018-09-18 | 2018-12-21 | 淄博祥龙测控技术有限公司 | Coal mine goaf wireless sensing device based on LORA technology and communication method |
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| US20160131624A1 (en) * | 2014-03-20 | 2016-05-12 | Chugai Technos Corporation | Carbon dioxide ground leakage monitoring system |
| CN207907948U (en) * | 2018-03-23 | 2018-09-25 | 济南祥控自动化设备有限公司 | Coal yard ambient intelligence monitoring system |
| CN108986438A (en) * | 2018-08-17 | 2018-12-11 | 上海海事大学 | A kind of gantry crane data wireless monitor system based on LoRa |
| CN109064727A (en) * | 2018-09-18 | 2018-12-21 | 淄博祥龙测控技术有限公司 | Coal mine goaf wireless sensing device based on LORA technology and communication method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309098A (en) * | 2020-10-27 | 2021-02-02 | 福建优迪电力技术有限公司 | Passive wireless SF6 gas detection device capable of realizing fan linkage |
| CN112750293A (en) * | 2021-01-18 | 2021-05-04 | 内蒙古京科发电有限公司 | System and method for realizing data wireless transmission of light measurement station |
| CN115855171A (en) * | 2023-03-02 | 2023-03-28 | 山东铁马电气科技发展有限公司 | Online monitoring and alarming system for gas in SF6 electrical equipment and implementation method |
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