CN111664952B - Temperature measurement reset system of factory high-voltage control cabinet and control method thereof - Google Patents
Temperature measurement reset system of factory high-voltage control cabinet and control method thereof Download PDFInfo
- Publication number
- CN111664952B CN111664952B CN202010360446.0A CN202010360446A CN111664952B CN 111664952 B CN111664952 B CN 111664952B CN 202010360446 A CN202010360446 A CN 202010360446A CN 111664952 B CN111664952 B CN 111664952B
- Authority
- CN
- China
- Prior art keywords
- temperature
- reset
- controller
- server terminal
- temperature measurement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/022—Means for indicating or recording specially adapted for thermometers for recording
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K3/00—Thermometers giving results other than momentary value of temperature
- G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
Abstract
The invention discloses a temperature measurement reset system of a factory high-voltage control cabinet, which is integrated in the high-voltage control cabinet and comprises a controller, a reset trigger switch, a plurality of sub-modules connected with external equipment and a signal acquisition module, wherein the controller resets the sub-modules or the system through the reset trigger switch, a plurality of signal output ends of the controller are electrically connected with the corresponding sub-modules, and the controller receives a reset signal output by the signal acquisition module through a signal input end arranged on the controller and controls the resetting of each sub-module and resets the corresponding external equipment; the invention also discloses a reset control method thereof, which comprises the steps that the server terminal receives the temperature signal and the system control equipment resets; by adopting the technical scheme, the overheating temperature occurrence point of the equipment is monitored in real time, and the equipment with high temperature is reset, so that the maintenance and the use of the equipment are guaranteed.
Description
Technical Field
The invention belongs to the field of power control systems, and particularly relates to a temperature measurement resetting system of a factory high-voltage control cabinet and a control method thereof.
Background
In the process of coal mining and processing, a large number of electric control devices are adopted, temperature control monitoring and reset control of the electric control devices are very important links, most of the prior art adopts a temperature indicating wax sheet mode and an infrared thermometer temperature measuring mode to monitor temperature, the temperature is measured by adopting the temperature indicating wax sheet mode, and when the temperature reaches a certain value, the wax sheet changes color; the temperature measurement by the infrared thermometer can be monitored only when the infrared thermometer is regularly used for inspection, the interference of sunlight must be avoided by a point-by-point temperature measurement method of the infrared thermometer, the equipment connectors in the switch cabinet cannot be used for measurement, real-time monitoring cannot be achieved, and the limitation is large.
Disclosure of Invention
The invention aims to solve the technical problem of providing a temperature measurement resetting system of a factory high-voltage control cabinet and an automatic control method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a temperature measurement reset system of factory high tension control cabinet, this system integration in high tension control cabinet which characterized in that: comprises a controller, a reset trigger switch, a plurality of sub-modules connected with external equipment, and a signal acquisition module, wherein the signal acquisition module comprises a wireless temperature sensor, a temperature measurement communication terminal and a temperature display instrument, the signal input interface of the controller is respectively provided with a reset signal input end corresponding to the wireless temperature sensor, the temperature measurement communication terminal, the temperature display instrument and the power supply module, the temperature sensor monitors the temperature of the external equipment and collects the operating temperature data of each monitoring point from the temperature measurement communication terminal, storing the data in a database for a long time, displaying a temperature change curve of a monitoring point in real time, analyzing and compensating a difference value, starting reset control immediately once the temperature is overheated or is rapidly heated to a preset alarm temperature value, and outputting corresponding reset signals to each switch module by a controller through a signal input interface corresponding to the sub-module;
the controller is provided with a plurality of signal input ends corresponding to the submodules respectively, and the controller receives reset signals output by the signal acquisition module through the signal input ends arranged on the controller to control the submodules to reset and reset corresponding external equipment.
The invention discloses a temperature measurement reset system of a factory high-voltage control cabinet.A submodule connected with a controller respectively comprises a plurality of switch modules connected with a control bus and a power chip module, and the signal output end of the controller is respectively connected with corresponding peripheral equipment and respective power supply modules through different switch modules.
The invention discloses a temperature measurement reset system of a factory high-voltage control cabinet, wherein a reset trigger switch comprises a trigger switch and a port connected with a voltage source, and when the trigger switch is closed, a reset signal is generated and transmitted to a controller.
The invention discloses a temperature measurement resetting system of a factory high-voltage control cabinet, wherein a controller adopts LU-920 UY.
The invention discloses a reset control method of a factory high-voltage control cabinet, which further comprises the following steps:
s1, establishing a communication base station with a server terminal, installing the wireless temperature sensor at the connection position and the surface of equipment which is easy to generate heat to collect temperature data, and automatically transmitting the temperature data of a monitoring point once by the temperature sensor according to a set time interval to transmit the temperature data to the temperature measurement communication terminal;
s2, the temperature display instrument is installed in a centralized control room and is responsible for receiving temperature data sent by each wireless temperature sensor through a temperature measurement communication terminal, the temperature measurement communication terminal is connected to a server terminal through a bus and uploads the data to the server terminal, and the server terminal responds to various commands of management software at the same time;
s3, the server terminal collects the operating temperature data of each monitoring point from the temperature measurement communication terminal, stores the operating temperature data in a database for a long time, displays the monitoring points in real time and generates a temperature change curve; the temperature data received by the server terminal is compared with multiple groups of actual temperature data, the difference value is recorded in the server terminal, the server terminal combines the temperature difference values generated by comparison to generate a compensation curve, and the compensation curve is combined with the real-time display monitoring point to generate a corresponding temperature change curve.
When the received real-time display monitoring point and the temperature difference value are larger than a reset threshold value required by the site, the server terminal receives a signal from the server terminal; automatically triggering the controller to reset the corresponding switch module;
on the contrary, if the acquired value of the server terminal is within the reset threshold, the server terminal continues to monitor and generate a temperature change curve.
The invention discloses a reset control method of a factory high-voltage control cabinet, wherein when a server terminal simultaneously receives that a numerical value obtained by combining a plurality of real-time display monitoring points at different positions with a temperature difference value is larger than a reset threshold value required by a site, the server terminal simultaneously sends a reset signal of a controller corresponding to a switch module.
By adopting the technical scheme, the wireless temperature sensor, the temperature measurement communication terminal and the temperature display instrument are used as the signal acquisition module, the server terminal is matched with the control controller and the switch modules to carry out temperature monitoring on the mining equipment, the operation temperature data of each monitoring point is acquired from the temperature measurement communication terminal and is stored in the database for a long time, the temperature change curve of the monitoring point is displayed in real time and is analyzed and subjected to difference value compensation, once the temperature is found to be overheated or rapidly heated to a preset alarm temperature value, the reset control is immediately started to protect the equipment, and not only is the equipment protected, but also the temperature early warning range of the equipment can be adjusted by utilizing the method, so that the most suitable temperature threshold value is set, the production cost is saved, and the service life of the equipment is ensured.
The invention will be explained in more detail below with reference to the drawings and examples.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a logic diagram of a reset control method according to the present invention.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail for the purpose of providing a more complete, accurate and thorough understanding of the inventive concepts and technical solutions of the present invention, including the shapes of the components, the structures, the mutual positions and connection relationships of the components, the functions and operating principles of the components, the manufacturing processes, the operation and use methods, and the like.
FIG. 1 is a logic block diagram of a reset control method of the present invention, and is a temperature measurement reset system of a factory high-voltage control cabinet, which is integrated in the high-voltage control cabinet and includes a controller, a reset trigger switch, a plurality of sub-modules connected to external devices, and a signal acquisition module, wherein a reset signal input terminal of the controller is connected to the reset trigger switch, the controller resets the sub-modules or the system through the reset trigger switch, and a plurality of signal output terminals of the controller are electrically connected to the corresponding sub-modules, wherein the controller is respectively provided with a plurality of signal input terminals corresponding to the plurality of sub-modules, the controller receives a reset signal output by the signal acquisition module through the signal input terminal thereof to control the resetting of each sub-module, and resets the corresponding external devices, the sub-modules connected to the controller respectively include a plurality of switch modules connected to a control bus and a power chip module, the signal output end of the controller is respectively connected with the corresponding peripheral and the respective power supply module through different switch modules, the reset trigger switch comprises a trigger switch and a port connected with a voltage source, when the trigger switch is closed, a reset signal is generated and transmitted to the controller, the signal acquisition module comprises a wireless temperature sensor, a temperature measurement communication terminal and a temperature display, the signal input interface of the controller is respectively provided with a reset signal input end corresponding to the wireless temperature sensor, the temperature measurement communication terminal, the temperature display and the power supply module, wherein the controller outputs the corresponding reset signal to each switch module through the signal input interface corresponding to the sub-module, and the controller adopts LU-920 UY.
The signal acquisition module of the scheme consists of a wireless temperature sensor, a temperature measurement communication terminal (temperature display instrument) and a communication base station, and can realize remote intelligent online monitoring and early warning on the temperature under various severe environments by adopting various communication technologies such as micro-power consumption wireless communication, a digital temperature sensor, anti-electromagnetic interference design and the like; the sensor is mainly installed at the junction and surface of the equipment which is easy to generate heat, the sensor automatically transmits the temperature data of the monitoring point once at regular intervals, and the alarm is given immediately when the temperature is abnormal, so that the limitation of the sending period is avoided. The temperature display instrument is arranged in the centralized control room and is responsible for receiving temperature data sent by each wireless temperature sensor, uploading the data to the computer of the temperature monitoring workstation through bus connection and responding to various commands of management software; the wireless temperature monitoring and data acquisition system is characterized in that a temperature monitoring computer acquires operating temperature data of each monitoring point from a temperature measurement communication terminal, the operating temperature data are stored in a database for a long time, the temperature change curve of the monitoring points is displayed in real time and analyzed, and once the temperature is found to be overheated or rapidly heated to a preset alarm temperature value, an alarm is given immediately.
The reset control method disclosed by the scheme further comprises the following steps of:
s1, establishing a communication base station with a server terminal, installing the wireless temperature sensor at the connection position and the surface of equipment which is easy to generate heat, and automatically transmitting the temperature data of a monitoring point once by the sensor according to a set time interval to be transmitted to the temperature measurement communication terminal;
s2, the temperature display instrument is installed in a centralized control room and is responsible for receiving temperature data sent by each wireless temperature sensor through a temperature measurement communication terminal, the temperature measurement communication terminal is connected to a server terminal through a bus and uploads the data to the server terminal, and the server terminal responds to various commands of management software at the same time;
and S3, the server terminal collects the operating temperature data of each monitoring point from the temperature measurement communication terminal, stores the operating temperature data in the database for a long time, displays the monitoring points in real time and generates a temperature change curve.
The temperature data received by the server terminal in the step S3 is compared with the actual sets of temperature data, the difference is recorded in the server terminal, and the server terminal combines the temperature difference generated by the comparison to generate a compensation curve, and combines the compensation curve with the real-time display monitoring point to generate a corresponding temperature change curve.
When the received value obtained by combining the real-time display monitoring point and the temperature difference value is larger than a reset threshold value required by a site, the server terminal in the system; automatically triggering the controller to reset the corresponding switch module;
on the contrary, if the acquired value of the server terminal is within the reset threshold, the server terminal continues to monitor and generate a temperature change curve.
And if the server terminal receives the numerical values obtained by combining the real-time display monitoring points at different positions with the temperature difference value and is larger than the reset threshold value required by the site, the server terminal simultaneously sends a reset signal of the controller corresponding to the switch module.
By adopting the technical scheme, the wireless temperature sensor, the temperature measurement communication terminal and the temperature display instrument are used as the signal acquisition module, the server terminal is matched with the control controller and the switch modules to carry out temperature monitoring on the mining equipment, the operation temperature data of each monitoring point is acquired from the temperature measurement communication terminal and is stored in the database for a long time, the temperature change curve of the monitoring point is displayed in real time and is analyzed and subjected to difference value compensation, once the temperature is found to be overheated or rapidly heated to a preset alarm temperature value, the reset control is immediately started to protect the equipment, and not only is the equipment protected, but also the temperature early warning range of the equipment can be adjusted by utilizing the method, so that the most suitable temperature threshold value is set, the production cost is saved, and the service life of the equipment is ensured.
The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.
Claims (6)
1. The utility model provides a temperature measurement reset system of factory high tension control cabinet, this system integration in high tension control cabinet which characterized in that: comprises a controller, a reset trigger switch, a plurality of sub-modules connected with external equipment, and a signal acquisition module, wherein the signal acquisition module comprises a wireless temperature sensor, a temperature measurement communication terminal and a temperature display instrument, the signal input interface of the controller is respectively provided with a reset signal input end corresponding to the wireless temperature sensor, the temperature measurement communication terminal, the temperature display instrument and the power supply module, the temperature sensor monitors the temperature of the external equipment and collects the operating temperature data of each monitoring point from the temperature measurement communication terminal, storing the data in a database for a long time, displaying a temperature change curve of a monitoring point in real time, analyzing and compensating a difference value, starting reset control immediately once the temperature is overheated or is rapidly heated to a preset alarm temperature value, and outputting corresponding reset signals to each switch module by a controller through a signal input interface corresponding to the sub-module;
the controller is provided with a plurality of signal input ends corresponding to the submodules respectively, and the controller receives reset signals output by the signal acquisition module through the signal input ends arranged on the controller to control the submodules to reset and reset corresponding external equipment.
2. The temperature measurement resetting system of the factory high-voltage control cabinet according to claim 1, wherein the sub-modules connected to the controller respectively comprise a plurality of switch modules connected to a control bus and a power chip module, and the signal output ends of the controller are respectively connected to the corresponding external device and the respective power supply module through different switch modules.
3. The system of claim 1, wherein the reset trigger switch comprises a trigger switch and a port connected to a voltage source, wherein when the trigger switch is closed, a reset signal is generated and transmitted to the controller.
4. The thermometric reset system of a factory high voltage control cabinet according to claim 1, wherein said controller is LU-920 UY.
5. A reset control method of a factory high-voltage control cabinet, comprising the temperature measurement reset system of the factory high-voltage control cabinet as claimed in any one of claims 1 to 4, characterized by further comprising the following steps:
s1, establishing a communication base station with a server terminal, installing the wireless temperature sensor at the connection position and the surface of equipment which is easy to generate heat to collect temperature data, and automatically transmitting the temperature data of a monitoring point once by the temperature sensor according to a set time interval to transmit the temperature data to the temperature measurement communication terminal;
s2, the temperature display instrument is installed in a centralized control room and is responsible for receiving temperature data sent by each wireless temperature sensor through a temperature measurement communication terminal, the temperature measurement communication terminal is connected to a server terminal through a bus and uploads the data to the server terminal, and the server terminal responds to various commands of management software at the same time;
s3, the server terminal collects the operating temperature data of each monitoring point from the temperature measurement communication terminal, stores the operating temperature data in a database for a long time, displays the monitoring points in real time and generates a temperature change curve; the temperature data received by the server terminal is compared with a plurality of groups of actual temperature data, the difference value is recorded in the server terminal, the server terminal combines the temperature difference values generated by comparison to generate a compensation curve, and the compensation curve is combined with the real-time display monitoring point to generate a corresponding temperature change curve;
when the received value obtained by combining the real-time display monitoring point and the temperature difference value is larger than a reset threshold value required by the site, the server terminal receives a reset signal; automatically triggering the controller to reset the corresponding switch module;
on the contrary, if the acquired value of the server terminal is within the reset threshold, the server terminal continues to monitor and generate a temperature change curve.
6. The method as claimed in claim 5, wherein the server terminal simultaneously transmits the controller reset signal corresponding to the switch module when the server terminal simultaneously receives the values obtained by combining the real-time display monitoring points at different positions with the temperature difference value, and the obtained values are greater than the reset threshold required by the site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360446.0A CN111664952B (en) | 2020-04-30 | 2020-04-30 | Temperature measurement reset system of factory high-voltage control cabinet and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360446.0A CN111664952B (en) | 2020-04-30 | 2020-04-30 | Temperature measurement reset system of factory high-voltage control cabinet and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111664952A CN111664952A (en) | 2020-09-15 |
| CN111664952B true CN111664952B (en) | 2022-01-28 |
Family
ID=72383011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010360446.0A Active CN111664952B (en) | 2020-04-30 | 2020-04-30 | Temperature measurement reset system of factory high-voltage control cabinet and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111664952B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1472371A (en) * | 1974-02-26 | 1977-05-04 | Bair W | Monitoring systems |
| CN102403655A (en) * | 2010-09-14 | 2012-04-04 | 河南省电力公司焦作供电公司 | Middle/high voltage switch cabinet temperature monitoring system based on electronic nose technology |
| CN105371970A (en) * | 2015-12-15 | 2016-03-02 | 国家电网公司 | Substation wireless temperature measuring alarm system |
| CN105842621A (en) * | 2016-06-06 | 2016-08-10 | 中国计量大学 | Networked temperature switch automatic verification device and method |
| CN108168719A (en) * | 2018-01-19 | 2018-06-15 | 广州汉光电气股份有限公司 | A kind of wireless temperature measurement system for high-tension switch cabinet |
| CN209027683U (en) * | 2018-12-04 | 2019-06-25 | 张朝峰 | Device temperature monitoring device, equipment and its system in a kind of high-tension switch cabinet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6084614A (en) * | 1983-10-17 | 1985-05-14 | Toshiba Heating Appliances Co | Temperature controller |
-
2020
- 2020-04-30 CN CN202010360446.0A patent/CN111664952B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1472371A (en) * | 1974-02-26 | 1977-05-04 | Bair W | Monitoring systems |
| CN102403655A (en) * | 2010-09-14 | 2012-04-04 | 河南省电力公司焦作供电公司 | Middle/high voltage switch cabinet temperature monitoring system based on electronic nose technology |
| CN105371970A (en) * | 2015-12-15 | 2016-03-02 | 国家电网公司 | Substation wireless temperature measuring alarm system |
| CN105842621A (en) * | 2016-06-06 | 2016-08-10 | 中国计量大学 | Networked temperature switch automatic verification device and method |
| CN108168719A (en) * | 2018-01-19 | 2018-06-15 | 广州汉光电气股份有限公司 | A kind of wireless temperature measurement system for high-tension switch cabinet |
| CN209027683U (en) * | 2018-12-04 | 2019-06-25 | 张朝峰 | Device temperature monitoring device, equipment and its system in a kind of high-tension switch cabinet |
Non-Patent Citations (1)
| Title |
|---|
| 高压开关柜温升分析及继电器仪表室自动温度控制;张岩;《电子制作》;20190331;47、48、87 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111664952A (en) | 2020-09-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203337262U (en) | On-line imaging temperature measurement and detection system based on infrared technology | |
| CN107045762B (en) | Electric fire remote monitoring dynamic early warning method and system | |
| KR20200081088A (en) | The implement method of smart solution for switchgear existing installed | |
| CN201096542Y (en) | Optical fibre type temperature on-line monitoring system | |
| CN110989462A (en) | Infrared array temperature control method and device | |
| CN110855513A (en) | Power equipment temperature online monitoring system and method | |
| CN201774314U (en) | Wireless temperature monitoring system for power transmission line equipment | |
| CN108732431A (en) | Electrostatic monitoring system | |
| CN111664952B (en) | Temperature measurement reset system of factory high-voltage control cabinet and control method thereof | |
| CN111024160A (en) | Acquisition method and system suitable for temperature and humidity online monitoring signals of cable core of power distribution cable connector | |
| CN113654587A (en) | Wind-powered electricity generation field environmental data monitoring devices | |
| CN210322033U (en) | Female temperature monitoring devices that arranges of cubical switchboard | |
| CN110618060A (en) | Electromechanical integral digital display gas density relay | |
| CN201724748U (en) | Bus temperature monitoring system | |
| CN104776936A (en) | Distributed low-voltage electric connection joint online temperature-measuring system based on ZigBee technology | |
| CN215575498U (en) | Monitoring system for aging test of chip | |
| CN215492099U (en) | Intelligent ring main unit cable temperature monitoring device and intelligent ring main unit | |
| CN111819760A (en) | Monitoring of high or medium voltage installations | |
| CN210347872U (en) | Battery monitoring device and battery | |
| CN112072794A (en) | Power supply temperature measurement protection system | |
| KR20210034533A (en) | Apparatus for Detector of Temperature of Rack | |
| CN105716730A (en) | Wireless temperature measurement system for monitoring temperature of moving and static contacts of circuit breaker | |
| CN201653570U (en) | Electric terminal on-line temperature measuring device based on wireless communication technology | |
| CN220539774U (en) | Real-time monitoring device and system for temperature of power output loop of wind turbine generator | |
| CN213874718U (en) | Cable accessory temperature monitoring device based on dot matrix temperature measurement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |