CN202119545U - Wireless temperature measuring system - Google Patents

Wireless temperature measuring system Download PDF

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Publication number
CN202119545U
CN202119545U CN2011200562195U CN201120056219U CN202119545U CN 202119545 U CN202119545 U CN 202119545U CN 2011200562195 U CN2011200562195 U CN 2011200562195U CN 201120056219 U CN201120056219 U CN 201120056219U CN 202119545 U CN202119545 U CN 202119545U
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China
Prior art keywords
temperature sensor
wireless network
data
management unit
temperature
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CN2011200562195U
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Chinese (zh)
Inventor
普宏林
善学雷
白文亮
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易门供电有限公司
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Priority to CN2011200562195U priority Critical patent/CN202119545U/en
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Publication of CN202119545U publication Critical patent/CN202119545U/en

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Abstract

The utility model provides a wireless temperature measuring system, comprising a wireless temperature sensor node connected with a Zigbee wireless network management unit and used for acquiring temperature data of a monitoring point and transmitting the temperature data to the Zigbee wireless network management unit via a Zigbee wireless network, wherein the Zigbee wireless network management unit is connected with a data detection management center and is used for receiving the temperature data and uploading the temperature data to the data detection management center, and the data detection management center stores the received temperature data. The technical scheme of the utility model overcomes the problems that wired sensors have defects in anti-interference performance, insulation performance and installation dimension and other wireless sensors have defects in power consumption, volume, etc. The wireless temperature measuring system is strong in self networking capability and provides a novel, highly efficient, reliable and practical solution scheme for temperature measuring of a transformer station high voltage switch cabinet.

Description

Wireless temperature measurement system
Technical field
The utility model relates to wireless communication technology, relates in particular to the wireless temperature measurement system based on the Zigbee wireless technology.
Background technology
Important equipment such as the high-tension switch cabinet of generating plant and transformer station, busbar joint, outdoor disconnecting link switch; In the long-time running process; The contact of switch such as is connected at the position with bus can be because of wearing out or contact resistance is excessive generates heat; Make adjacent insulation component capabilities deterioration, even puncture and cause the accident.Therefore; The on-line temperature monitoring problem of electrical equipment has become in the electric system and to be the practical problems that guarantees the urgent need solution of electrical equipment safe operation institute; This is to improve pressing for of electrical equipment reliability, has crucial meaning to ensureing the power system safety and stability operation.
For a long time, the running temperature of high-tension apparatus joint is difficult to monitoring, and this is that common thermometry can not be used because of solving the High-Voltage Insulation problem because these positions all have exposed high pressure.
Existing temp measuring system mainly contains three types according to the different of Fundamentals of Sensors and transmission mode: optical fiber, infrared and wireless transmission, respectively as follows:
(1) fibre optic temperature sensor adopts the fiber optic transmission temperature signal; Have excellent insulating property, precision advantage of higher, its shortcoming are easy to break, easily broken, non-refractory; The optical fiber surface that is used for isolated high-voltage is polluted easily; May cause the optical fiber creeping discharge, the wound form on equipment is installed the maintenance generation inconvenience to high-tension apparatus simultaneously, costs an arm and a leg.
(2) infrared measurement of temperature is a contactless temperature-measuring; Be subject to the environment and the interference of electromagnetic field on every side; Precision is lower, and is very narrow and small owing to the space for switch cubicle in addition, and infrared temperature probe can't effectively be installed; Because probe must keep certain safe distance with testee, and need be over against the surface of testee.This defective that makes infrared technique be used on the sensor device is conspicuous: it must be in visual scope interior orientation transmission, and can not there be any stopping the centre, requires the device location relative fixed simultaneously.
(3) the wireless temperature measurement sensor does not receive the restriction of switch cubicle body structure; Adopt the electromagnetic transmission signal; Sensor is directly installed on the high-tension apparatus, and temperature survey is accurate, and can solve the problem of electric insulation problem and signal transmission; It does not receive the influence of climatic environment simultaneously, has fundamentally solved high-tension apparatus contact running temperature and has been difficult for the effectively difficult problem of monitoring.
As far as adopting the wireless temperature measurement technology; To the occasion characteristics that temperature probe uses, high voltage, very strong electromagnetic field are to very big these characteristics of radio wave interference, except some basic requirements; As: outside power system capacity, precision, the monitoring function requirement etc., also be faced with some difficult problems:
(1) needs are selected the wireless network of appropriate frequency;
(2) temperature measuring equipment adopts powered battery, means that equipment itself must satisfy super low-power consumption, and long playing requirement is not suitable for small-sized, portable sensor device like HomeRF802.11b etc. because cost is too high; And bluetooth and WiFi (Wireless Fidelity, be called for short WiFi) then can not be applicable to because power consumption is excessive and need the electric power of long-term work thermometric occasion;
(3) need volume little, be prone to install.
Therefore, need a kind of wireless temperature measurement system, it should have low cost, prolongs in short-term, unlicensed band, high safety, closely, low complex degree, advantages such as low-power consumption solve the problem of high-tension apparatus thermometric.
The utility model content
In view of this; The utility model technical matters to be solved is; A kind of wireless temperature measurement system of art is provided; Can overcome wired sensor at aspects such as anti-interference, insulation and installation dimensions and other wireless sensers in the defective and the deficiency of aspects such as power consumption, volume, and the MANET ability is strong.
The utility model provides a kind of wireless temperature measurement system based on the Zigbee wireless technology; Comprise: the radio temperature sensor node; Be connected to Zigbee wireless network management unit; Can gather the temperature data of monitoring point, and temperature data is sent to Zigbee wireless network management unit through the Zigbee wireless network; Zigbee wireless network management unit is connected to Data Detection administrative center, can receive temperature data, and with temperature data uploading to Data Detection administrative center; Data Detection administrative center is used for the temperature data that receives is stored.
In technique scheme, preferably, to realize correlation function, correlation function comprises the displays temperature data, gives the alarm, provides temperature inquiry or the like to the temperature data analysis of storage in Data Detection administrative center.
In technique scheme; Preferably; Can also comprise: the communication management terminal; Be connected to Zigbee wireless network management unit, Data Detection administrative center, the temperature data that a plurality of Zigbee wireless network managements unit receives is sent to Data Detection administrative center together through this communication management terminal.
In technique scheme, preferably, when a plurality of radio temperature sensor nodes were connected to same Zigbee wireless network management unit, the topological structure type of a plurality of radio temperature sensor nodes can comprise: star-like, sheet type, tree type and reticular pattern etc.
In technique scheme, preferably, when the topological structure of a plurality of radio temperature sensor nodes was star-like, a plurality of radio temperature sensor nodes can comprise: the radio temperature sensor host node is connected directly to same Zigbee wireless network management unit; A plurality of radio temperature sensor child nodes are connected directly to the radio temperature sensor host node.
In technique scheme, preferably, when the topological structure of a plurality of radio temperature sensor nodes was the tree type, a plurality of radio temperature sensor nodes can comprise: the radio temperature sensor host node is connected directly to same Zigbee wireless network management unit; A plurality of radio temperature sensor child nodes, each radio temperature sensor child node directly or through other radio temperature sensor child nodes is connected to same Zigbee wireless network management unit indirectly.
In technique scheme, preferably, radio temperature sensor can comprise: the thermometric chip, be connected with the I/O interface of single-chip microcomputer through single line, and the temperature data of the check point of gathering is sent to single-chip microcomputer; Single-chip microcomputer is connected to RF transceiver, and temperature data is sent to RF transceiver; RF transceiver is connected to built-in aerial, and the Single-chip Controlling RF transceiver is to be sent to zigbee wireless network management unit through built-in aerial with temperature data; And built-in aerial.
In technique scheme, preferably, Zigbee wireless network management unit can comprise: timing trigger unit, order radio temperature sensor node collecting temperature data at interval with preset time; Reading unit is connected to the radio temperature sensor node, can read the running parameter of radio temperature sensor node, and preserves running parameter.
Through technique scheme, can realize wireless temperature measurement system based on the Zigbee wireless technology, its power consumption is little, and the MANET ability is strong, can measure required temperature in efficient quick ground.
Description of drawings
Fig. 1 shows the block diagram according to the wireless temperature measurement system of the embodiment of the utility model;
Fig. 2 shows the synoptic diagram according to the wireless temperature measurement system of the embodiment of the utility model.
Embodiment
In order more to be expressly understood above-mentioned purpose, the feature and advantage of the utility model, the utility model is further described in detail below in conjunction with accompanying drawing and embodiment.
A lot of details have been set forth in the following description so that make much of the utility model; But; The utility model can also adopt other to be different from other modes described here and implement, and therefore, the utility model is not limited to the restriction of following disclosed specific embodiment.
Fig. 1 shows the block diagram according to the wireless temperature measurement system of the embodiment of the utility model.
As shown in Figure 1; The wireless temperature measurement system 100 based on the Zigbee wireless technology according to the embodiment of the utility model comprises: radio temperature sensor node 102; Be connected to Zigbee wireless network management unit 104; Gather the temperature data of monitoring point, and temperature data is sent to Zigbee wireless network management unit 104 through the Zigbee wireless network; Zigbee wireless network management unit 104 is connected to Data Detection administrative center 106, receives temperature data, and with temperature data uploading to Data Detection administrative center 106; Data Detection administrative center 106 stores the temperature data that receives.
In technique scheme, preferably, the temperature data analysis of 106 pairs of storages of Data Detection administrative center is to realize correlation function, and correlation function comprises the displays temperature data, gives the alarm, provides temperature inquiry or the like.
In technique scheme; Preferably; Can also comprise: communication management terminal 108; Be connected to Zigbee wireless network management unit 104, Data Detection administrative center 106, the temperature data that a plurality of Zigbee wireless network managements unit 104 receives is sent to Data Detection administrative center 106 together through this communication management terminal 108.
In technique scheme; Preferably; When a plurality of radio temperature sensor nodes 102 were connected to same Zigbee wireless network management unit 104, the topological structure type of a plurality of radio temperature sensor nodes 102 can comprise: star-like, sheet type, tree type and reticular pattern etc.
In technique scheme; Preferably; When the topological structure of a plurality of radio temperature sensor nodes 102 was star-like, a plurality of radio temperature sensor nodes 102 can comprise: the radio temperature sensor host node is connected directly to same Zigbee wireless network management unit 104; A plurality of radio temperature sensor child nodes are connected directly to the radio temperature sensor host node.
In technique scheme; Preferably; When the topological structure of a plurality of radio temperature sensor nodes was the tree type, a plurality of radio temperature sensor nodes 102 comprised: the radio temperature sensor host node is connected directly to same Zigbee wireless network management unit 104; A plurality of radio temperature sensor child nodes, each radio temperature sensor child node directly or through other radio temperature sensor child nodes is connected to same Zigbee wireless network management unit 104 indirectly.
In technique scheme, preferably, radio temperature sensor can comprise: the thermometric chip, be connected with the I/O interface of single-chip microcomputer through single line, and the temperature data of the check point of gathering is sent to single-chip microcomputer; Single-chip microcomputer is connected to RF transceiver, and temperature data is sent to RF transceiver; RF transceiver is connected to built-in aerial, and the Single-chip Controlling RF transceiver is to be sent to zigbee wireless network management unit through built-in aerial with temperature data; And built-in aerial.
In technique scheme, preferably, Zigbee wireless network management unit 104 can comprise: timing trigger unit, order radio temperature sensor node collecting temperature data at interval with preset time; Reading unit is connected to radio temperature sensor node 102, reads the running parameter of radio temperature sensor node, and preserves running parameter.
Through technique scheme, can realize wireless temperature measurement system based on the Zigbee wireless technology, its power consumption is little, and the MANET ability is strong, can measure required temperature in efficient quick ground.
Fig. 2 shows the synoptic diagram according to the wireless temperature measurement system of the embodiment of the utility model.
As shown in Figure 2, the wireless temperature measuring system of present embodiment is made up of four parts:
(1) the radio temperature sensor node 202: be responsible for gathering the temperature data of monitoring point, and send data through the ZigBee network.
Radio temperature sensor node 202 is elementary cells of this system, and it is responsible for obtaining temperature data and to the pre-service of temperature data, and temperature data is transferred to ZigBee wireless network management unit 204.
Radio temperature sensor node 202 inner integrated 2.4GHz RF transceiver and single-chip microcomputer and the high performance thermometric chip DS18B20 that meet the IEEE802.15.4 standard; This thermometric chip directly is connected with the single-chip processor i/o mouth through single line; Needn't increase special bus controller in addition, also reduce the volume of radio temperature sensor node when reducing hardware cost.
Radio temperature sensor node 202 is installed in the surface of equipment electrified body; Should have performance high temperature resistant and insulation; The used radio temperature sensor node 202 of the temp measuring system of present embodiment adopts high temperature modified ABS plastic encapsulation; Through a large amount of experiments, can satisfy fully and on the basis that guarantees measuring accuracy, satisfy the requirement of electric system insulation and high temperature.
(2) ZigBee wireless network management unit 204 (being called concentrator again): be responsible for to collect the temperature data that wireless sensor node 202 sends, and collected temperature data uploading to Data Detection administrative center 208.
The gateway that ZigBee wireless network management unit 204 in this system is integrated in the ZigBee network and the function of telegon; Possesses crucial effects; Adopt ZigBee wireless network mode to be connected on the one hand with radio temperature sensor node 202; And the running parameter of ordering radio temperature sensor node 202 to carry out thermometric and read it at interval with regular time; Deposit internal memory simultaneously in, this need be that the radio temperature sensor node of being managed 202 is provided with number table through each ZigBee wireless network management unit 204 just, to avoid entanglement; Each ZigBee wireless network management unit 204 adopts Ethernets or RS-485 bus to be connected with the main frame of data with monitoring management center 208 on the other hand, is controlled by the order of main frame and makes a series of reflection.The function that ZigBee wireless network management unit 204 also has has: running parameter and functions such as duty indication, clock and house dog that reception and store sensor data, the ZigBee subnet of administrative institute's administration, warning function, transmission data are given main frame, setting and modification communication management terminal 206.Each ZigBee wireless network management unit 204 can insert 16 or 32 sensor nodes, and number of active lanes is configured according to transformer station's scale of reality.
(3) the communication management terminal 206: communication management terminal 206 equipment of each transformer station's configuration; The temperature signal that is used for standing is entirely concentrated; And, utilize in the station on the server of existing means of communication with the Data Detection administrative center 208 that delivers to a distant place on the signal according to certain rule.Certainly, it should be appreciated by those skilled in the art do not have communication management terminal 206 can realize the technique effect of collecting temperature too.
(4) data monitoring administrative center 208: be responsible for that running parameter is carried out at communication management terminal 206 and set; The reception temperature measurement data that each ZigBee wireless network management unit 204 is uploaded from system; And data are preserved, analyze and management etc.; Temperature measurement data can be made the longer-term storage record in system's real-time data base, supply query display at any time.
Radio temperature sensor node 202 is directly installed on the equipment under test surface; A plurality of wireless sensor nodes 202 can be managed in a ZigBee wireless network management unit 204; Network management unit 204 is transferred to the real-time data base of data monitoring administrative center 208 through the high-speed backbone network; By real-time video data of the monitor terminal of data monitoring administrative center 208 and temperature changing curve diagram; Can print relevant form, when temperature anomaly, data monitoring administrative center 208 reminds the related personnel to take measures through multiple type of alarm.
Data monitoring administrative center 208 is made up of a high-performance industrial computer; It in order to accomplish unified management and the deployment to whole temperature monitoring system, can realize temperature demonstration in real time, historgraphic data recording and functions such as analysis, alarm condition record with mounting temperature monitoring analysis software.
Software can be set up the switch cubicle device databases, and parameters such as the structure of display device and model help the operations staff to monitor and analyze the overheat condition of switch cubicle contact, dope the position that fault takes place, and guarantee the safe operation of switch cubicle equipment.
The network topology of the radio temperature sensor node 202 in the present embodiment has: star-like, sheet, tree type and mesh network topology, and by a host node management plurality of sub node, maximum host nodes can be managed 254 node; Host node also can be formed the big net of 65535 nodes at most by the last layer network node control simultaneously.
The star topology network structure is simpler; Concerning radio temperature sensor node 202 is not that a lot of system is as for an independent transformer station; The star topology network can be simplified network design, reduce power consumption, and is optimized and cutting through the protocol stack to the ZigBee network, removes in the network layer support bunch tree-like and the mesh network topological structure; Can reduce the consumption of processor resource effectively, improve the real-time response ability of 202 pairs of acquired signal of radio temperature sensor node.
In addition; The telegon of the Zigbee wireless network management unit 204 in the star topology network adopts the beacon enable mode: through changing beacon sum of series superframe progression; Make the telegon four kinds of states that can be in transmission, receive, intercept and sleep; Thereby reach better energy-conservation purpose, therefore, the wireless temperature measurement system in the present embodiment adopts the star topology network.
Data transmission in this wireless temperature measurement system, the data communication between radio temperature sensor node 202 in this system and the ZigBee wireless network management unit 204 are based on the ZigBee wireless network.In the wireless transmission process, owing to receive the influence of many factors that possibly occur such as transmission range, field conditions, the unpredictable mistake of regular meeting's generation of communicating by letter between radio temperature sensor node 202 and the ZigBee wireless network management unit 204.For system can be communicated by letter reliably, when design ZigBee communication protocol stack, need consider reliability of data transmission, each layer all realized power-saving mechanism, reduces the energy consumption and the emissive power of node.And this ZigBee wireless network is operated in the 2.4GHZ frequency range that meets the IEEE802.15.4 standard; The utilization direct sequence spread spectrum skill; Antijamming capability is stronger, in addition, and competition and conflict when adopting the CSMA-CA technology to avoid data to send; The GTS pattern is adopted in the communication of MAC layer data, guarantees reliability of data communication in the ZigBee wireless network.
In wireless temperature measurement system; After radio temperature sensor node 202 is installed, need continuous firing for a long time, the selection of high energy battery is necessary; But the energy-conservation of radio temperature sensor node 202 is a more importantly problem; Taked following measure for this reason: reduce the energy consumption of Temperature sampler, main through selecting the low-power consumption chip, reduce the chip operation time; CPU executes the task with the fastest speed, gets into park mode then, through interrupting waking up single-chip microcomputer and RF transceiver.Through conservative measuring and calculating, select high-octane battery for use, radio temperature sensor node 202 can be worked more than 2 years at least.
Illustrate the wireless temperature measurement system of present embodiment below again; Be used as pilot if choose a 35kV transformer station; Plan configuration radio temperature sensor node 202 is 100 (can adjust as one sees fit during the project implementation), and ZigBee wireless network management unit 204 has 4, and communication management terminal 206 has 1; Data Detection administrative center 208 has 1, adopts star structure to make up wireless network.
Data Detection administrative center 208 is responsible for the temperature monitoring signal that transmits on the difference station is gathered and realizes managing concentratedly, and the database software of configure dedicated is stored data.The concrete mounting means of this wireless temperature measurement system can for:
1, radio temperature sensor node 202 can be installed in high-tension switch cabinet nipple or outdoor equipment surface, fixes with the mode of colligation;
2, Zigbee wireless network management unit 204 can be installed on the switch cubicle secondary device installation panel or be fixed on the indoor wall of switch cubicle, and outdoor equipment then is fixed on apart from the wall nearest in the measuring point 50m scope;
3, communication management terminal 206 can be installed in the communication screen or the specified location in user of transformer station;
4, Data Detection administrative center 208 is arranged in the Control Room at concentrated center, a distant place.
The comprehensive above technical scheme that has specified the utility model with reference to figure 1 and Fig. 2; The technical scheme of the utility model has considered that ZigBee wireless network thermometry is applied to the principle of high-voltage switch contact, network design, software and hardware realizes and system is anti-interference and the aspects such as design of low-power consumption; Can realize a kind of wireless temperature measurement system based on the Zigbee wireless technology; Compare similar monitoring system, native system has adopted up-to-date ZigBee technique construction, has following advantages:
Overcome wired sensor comprise infra-red heat galvanic couple, optical fiber temperature-measurement etc. at aspects such as anti-interference, insulation and installation dimensions and other wireless sensers in the defective and the deficiency of aspects such as power consumption, volume, for transformer station's high-tension switch cabinet thermometric provides a kind of novel, efficient, reliable, practical solution; ZigBee network technology based on the advanced person makes up the electric system temperature monitoring system, and the MANET ability is strong; Competition and conflict when the chip of radio temperature sensor node has adopted the CSMA-CA technology to avoid data to send, the GTS pattern is adopted in the communication of MAC layer data, guarantees reliability of data communication in the ZigBee wireless network; The CPU of radio temperature sensor node all adopts multi-mode working with each network management unit, effectively reduces system power dissipation, through the high performance battery of configuration, makes the non-maintaining time of system reach more than 2 years again; Wireless network through based on the ZigBee technology makes up, and carries out round-the-clock monitoring through the temperature to high-tension switch cabinet, and contingent hot stall is carried out early warning in advance, can effectively prevent the generation of the overheated various serious accidents that cause, takes precautions against in possible trouble; Through long term monitoring to the switch cubicle temperature, sum up the characteristic of switch cubicle temperature variation, for the maintenance in advance of switch cubicle provides foundation, carry out equipment health status for relevant departments simultaneously and the assessment in serviceable life has certain reference value; This temp measuring system has not only solved network layout difficulty, cost is high and problem such as real-time difference, and also has certain advantage at aspects such as investment, construction and maintenances, and the entire system investment is little, and but the safe operation to equipment has great significance.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims (7)

1. a wireless temperature measurement system is characterized in that, comprising:
The radio temperature sensor node is connected to Zigbee wireless network management unit, gathers the temperature data of monitoring point, and said temperature data is sent to said Zigbee wireless network management unit through the Zigbee wireless network;
Said Zigbee wireless network management unit is connected to Data Detection administrative center, receives said temperature data, and with the extremely said Data Detection of said temperature data uploading administrative center;
Said Data Detection administrative center stores the said temperature data that receives.
2. wireless temperature measurement system according to claim 1 is characterized in that, also comprises:
The communication management terminal; Be connected to said Zigbee wireless network management unit, said Data Detection administrative center; The said temperature data that a plurality of Zigbee wireless network managements unit receives is sent to Data Detection administrative center together through said communication management terminal.
3. wireless temperature measurement system according to claim 1; It is characterized in that; When a plurality of radio temperature sensor nodes were connected to same Zigbee wireless network management unit, the topological structure type of said a plurality of radio temperature sensor nodes comprised: star-like, sheet type, tree type and reticular pattern.
4. wireless temperature measurement system according to claim 3 is characterized in that, when the topological structure of said a plurality of radio temperature sensor nodes was star-like, said a plurality of radio temperature sensor nodes comprised:
The radio temperature sensor host node is connected directly to said same Zigbee wireless network management unit;
A plurality of radio temperature sensor child nodes are connected directly to said radio temperature sensor host node.
5. wireless temperature measurement system according to claim 3 is characterized in that, when the topological structure of said a plurality of radio temperature sensor nodes was the tree type, said a plurality of radio temperature sensor nodes comprised:
The radio temperature sensor host node is connected directly to said same Zigbee wireless network management unit;
A plurality of radio temperature sensor child nodes, each radio temperature sensor child node directly or through other radio temperature sensor child nodes is connected to said same Zigbee wireless network management unit indirectly.
6. wireless temperature measurement system according to claim 1 is characterized in that, said radio temperature sensor comprises:
The thermometric chip is connected with the I/O interface of single-chip microcomputer through single line, and the temperature data of the said check point of gathering is sent to said single-chip microcomputer;
Said single-chip microcomputer is connected to RF transceiver, and said temperature data is sent to said RF transceiver;
Said RF transceiver is connected to built-in aerial, and the said RF transceiver of said Single-chip Controlling is to be sent to said zigbee wireless network management unit through said built-in aerial with said temperature data;
Said built-in aerial.
7. according to each described wireless temperature measurement system in the claim 1 to 6, it is characterized in that said Zigbee wireless network management unit comprises:
Timing trigger unit orders said radio temperature sensor node to gather said temperature data with preset time at interval;
Reading unit is connected to said radio temperature sensor node, reads the running parameter of said radio temperature sensor node, and preserves said running parameter.
CN2011200562195U 2011-03-04 2011-03-04 Wireless temperature measuring system CN202119545U (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661807A (en) * 2012-05-08 2012-09-12 襄垣县树元电器有限公司 Wireless intelligent temperature measuring instrument of electric equipment
CN102661806A (en) * 2012-05-08 2012-09-12 襄垣县树元电器有限公司 Wireless temperature monitoring device for power equipment
CN102851424A (en) * 2012-07-30 2013-01-02 北京北科亿力科技有限公司 Online cooling water temperature difference measuring system for wireless blast furnace
CN103196586A (en) * 2013-03-01 2013-07-10 德清县供电局 Substation equipment temperature monitoring system
CN103546354A (en) * 2013-10-22 2014-01-29 天津七一二通信广播有限公司 Communicating method being based on Internet of Things electric temperature measurement equipment and enabling RS485 bus and CAN bus to be compatible
CN103810828A (en) * 2012-11-09 2014-05-21 中国科学院沈阳计算技术研究所有限公司 Wireless communication system and method for Internet-of-Things aggregation node of machine tool
CN103822723A (en) * 2014-03-17 2014-05-28 济南鲁瑞智能技术有限公司 System and method for detecting temperature of switch cabinet based on Internet of Things
CN104464396A (en) * 2014-12-08 2015-03-25 华东师范大学 Geography air temperature daily change detecting and teaching system and method based on Zigbee
CN105698945A (en) * 2016-04-12 2016-06-22 中交航局安装工程有限公司 Wireless temperature measurement system
CN107271048A (en) * 2017-07-03 2017-10-20 杭州家和物联技术有限公司 A kind of wireless temperature measurement system and its temp measuring method
CN111486991A (en) * 2020-05-09 2020-08-04 国家电网有限公司 Overheating risk early warning device and early warning method for 10kV high-voltage switch cabinet

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102661806A (en) * 2012-05-08 2012-09-12 襄垣县树元电器有限公司 Wireless temperature monitoring device for power equipment
CN102661807A (en) * 2012-05-08 2012-09-12 襄垣县树元电器有限公司 Wireless intelligent temperature measuring instrument of electric equipment
CN102851424A (en) * 2012-07-30 2013-01-02 北京北科亿力科技有限公司 Online cooling water temperature difference measuring system for wireless blast furnace
CN103810828A (en) * 2012-11-09 2014-05-21 中国科学院沈阳计算技术研究所有限公司 Wireless communication system and method for Internet-of-Things aggregation node of machine tool
CN103810828B (en) * 2012-11-09 2017-02-08 中国科学院沈阳计算技术研究所有限公司 Wireless communication system and method for Internet-of-Things aggregation node of machine tool
CN103196586A (en) * 2013-03-01 2013-07-10 德清县供电局 Substation equipment temperature monitoring system
CN103546354A (en) * 2013-10-22 2014-01-29 天津七一二通信广播有限公司 Communicating method being based on Internet of Things electric temperature measurement equipment and enabling RS485 bus and CAN bus to be compatible
CN103546354B (en) * 2013-10-22 2016-06-29 天津七一二通信广播有限公司 Based on the communication means that the RS485 of Internet of Things electric power temperature measuring equipment is compatible with CAN
CN103822723B (en) * 2014-03-17 2016-08-17 济南鲁瑞智能技术有限公司 Switch cabinet temperature detecting system based on Internet of Things and method
CN103822723A (en) * 2014-03-17 2014-05-28 济南鲁瑞智能技术有限公司 System and method for detecting temperature of switch cabinet based on Internet of Things
CN104464396A (en) * 2014-12-08 2015-03-25 华东师范大学 Geography air temperature daily change detecting and teaching system and method based on Zigbee
CN105698945A (en) * 2016-04-12 2016-06-22 中交航局安装工程有限公司 Wireless temperature measurement system
CN107271048A (en) * 2017-07-03 2017-10-20 杭州家和物联技术有限公司 A kind of wireless temperature measurement system and its temp measuring method
CN111486991A (en) * 2020-05-09 2020-08-04 国家电网有限公司 Overheating risk early warning device and early warning method for 10kV high-voltage switch cabinet

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