CN115655515A - High-voltage switch cabinet online temperature measurement system based on energy information integrated transmission technology - Google Patents
High-voltage switch cabinet online temperature measurement system based on energy information integrated transmission technology Download PDFInfo
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- CN115655515A CN115655515A CN202211567351.1A CN202211567351A CN115655515A CN 115655515 A CN115655515 A CN 115655515A CN 202211567351 A CN202211567351 A CN 202211567351A CN 115655515 A CN115655515 A CN 115655515A
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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
- 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
Abstract
The application discloses an online temperature measuring system of a high-voltage switch cabinet based on an energy information integrated transmission technology, which comprises a wireless energy transceiver and a temperature monitoring device, wherein the wireless energy transceiver comprises a background control server used for sending and controlling a high-power microwave source, the high-power microwave source radiates energy to the temperature monitoring device through a transceiver module A, and the transceiver module A is also sequentially connected with a signal receiving module and a signal processing and controlling module; the temperature monitoring device comprises a transceiver module B used for receiving energy radiated by the transceiver module A, and the transceiver module B is also sequentially connected with an energy collecting module, a power supply management module, a temperature sensor and a communication module. Compared with an active temperature measuring device, the device performs point-to-point energy supply through external microwave energy, and is long in service life, reliable and higher in safety; compared with a passive temperature measuring device, the passive temperature measuring device has high precision, fixed receiving and sending positions, no need of repeated alignment operation and less environmental influence.
Description
Technical Field
The invention relates to the technical field of temperature measurement and heat measurement devices, in particular to the technical field of temperature measurement devices of moving contacts of a high-voltage switch cabinet, and particularly relates to an online temperature measurement system of the high-voltage switch cabinet based on an energy information integrated transmission technology.
Background
The switch cabinet on-line temperature measuring device monitors the temperature of heating points such as switch contacts in real time, thereby preventing safety fault accidents and providing scientific basis for diagnosing the working state of the switch cabinet through long-time temperature data recording. According to the power supply mode, the current temperature measuring devices are divided into an active type and a passive type.
The active temperature measuring device converts temperature data into digital signals through the temperature sensor, then transmits the digital signals to the wireless signal transmitting module, and transmits the digital signals to the digital terminal according to a specific communication protocol. Because the active device has been used in the device, consequently often need adopt the lithium cell as the energy source of sensor, but because the restriction of lithium cell self electric quantity, active temperature measuring device need change the battery after working a period, and in the change process, need recalibrate temperature measuring device's position in order to guarantee wireless signal's good receipt moreover, so not only inefficiency and the work load of manpower is big.
One passive temperature measuring device is a device that measures temperature by using a linear relationship between the resonance frequency of a resonator inside a temperature sensor and the temperature. When the ambient temperature changes, the parameters of the sensor substrate change with the temperature, thereby changing the resonant frequency of the sensor substrate. The temperature measuring device adopting the mode does not use an active device, so that an external power supply is not needed. However, since the change in the resonant frequency of the resonator is not only related to the temperature change but also affected by other factors such as the installation position of the device, the temperature measurement accuracy is lower than that of the active temperature measuring device. In addition, magnetic field induction electricity (CT electricity) generated by the load current of the wire is used, and the isolation transformation of the power supply is mainly carried out by the electromagnetic induction principle, so that not only can voltage transformation be carried out, but also current transformation can be carried out; however, the CT power taking size is huge, a certain starting voltage is needed, and the conventional temperature measuring device is difficult to meet the requirements.
The existing technical scheme mostly adopts a mode of improving battery capacity and utilizing CT to get electricity to supply power for the device or adopts a passive temperature measurement mode of a surface acoustic wave filter, and has various advantages and disadvantages based on the actual situation of the prior art; in order to provide a more stable solution, the application firstly provides how to supply energy to the high-voltage switch cabinet online temperature measuring device by using a microwave wireless energy transmission mode.
Disclosure of Invention
In order to solve the technical problems of online temperature measurement of a high-voltage switch cabinet and real-time monitoring of the temperature of a moving contact of the high-voltage switch cabinet, the application provides an online temperature measurement system of the high-voltage switch cabinet based on an energy information integrated transmission technology, mutual transmission of energy and information is realized through an antenna, so that uninterrupted active supply of an energy receiving and transmitting end is realized, and passive monitoring of a temperature measurement monitoring end is realized; compared with a passive temperature measuring device, the device has the advantages of high precision, fixed receiving and sending positions, no need of repeated alignment operation and less environmental influence.
In order to achieve the purpose, the technical scheme adopted by the application is as follows:
the high-voltage switch cabinet online temperature measurement system based on the energy information integrated transmission technology comprises a wireless energy receiving and transmitting device and a temperature monitoring device which are in wireless transmission connection, wherein the wireless energy receiving and transmitting device comprises a background control server used for sending out and controlling a high-power microwave source, the high-power microwave source radiates energy to the temperature monitoring device through a receiving and transmitting module A, the receiving and transmitting module A is further sequentially connected with a signal receiving module and a signal processing and control module, and the signal processing and control module is electrically connected with the background control server;
the temperature monitoring device comprises a transceiver module B used for receiving energy radiated by the transceiver module A, the transceiver module B is sequentially connected with an energy collecting module, a power supply management module, a temperature sensor installed in a high-voltage switch cabinet and used for measuring temperature in real time, and a communication module used for being in communication connection with the transceiver module B, and the communication module is electrically connected with the power supply management module.
The working principle is as follows: the background control server controls the high-power microwave source to generate microwave energy through a control instruction output by the system in advance, the microwave energy is sent to the first transceiving isolation module, then is transmitted to the transceiving module A through the first transceiving isolation module and is radiated out, and at the moment, the transmitting part of energy transmission is completed.
The receiving and transmitting module B sends the received microwave energy radiated from the receiving and transmitting module A to the energy collecting module, the energy collecting module converts the microwave energy into direct current energy and sends the direct current energy to the power supply management module for distribution management, and the direct current energy supply power to the temperature sensor and the communication module respectively, so that the process that the microwave energy is converted into electric energy for the temperature sensor used for collecting the temperature of the moving contact of the high-voltage switch cabinet in real time is completed.
The temperature sensor sends acquired temperature data to the communication module, the communication module sends the data to the transceiver module B and sends the data to the transceiver module A in a data form, and the transceiver module A sends the received signals to the signal receiving module and compares the signals after transmitting the signals to the signal processing and control module; when the received temperature data belong to the range of normal values preset by the system, the received temperature data are normally transmitted to the background control server to be displayed and stored in real time, and if the received temperature data exceed the allowable range, alarm information is sent and recorded while the temperature is displayed and stored in real time, so that background workers can know and call the temperature state corresponding to any time period of the high-voltage switch cabinet at any time.
Preferably, the transceiver module a includes a first transceiver isolation module connected to the high-power microwave source and the signal receiving module, and the first transceiver isolation module is further connected to a transceiver antenna a, and a wireless transmission connection is established between the transceiver antenna a and the transceiver module B.
Preferably, the transceiver module B includes a second transceiver isolation module connected to the energy collection module and the communication module, and the second transceiver isolation module is further connected to a transceiver antenna B, and a wireless transmission connection is established between the transceiver antenna B and the transceiver antenna a.
In order to ensure the stability of signal reception and avoid the problem of position or angle change caused by dismounting and mounting of the moving contact of the high-voltage switch cabinet, preferably, the transceiving antenna B is fixedly arranged on the circumferential side wall in the middle of any moving contact of the high-voltage switch cabinet, the transceiving antenna B comprises a plurality of antenna units which are uniformly distributed in the middle of the circumferential side wall of the moving contact, and any antenna unit is electrically connected with the second transceiving isolation module through an outer insulation line group which surrounds the outer circumferential side wall of the moving contact. The antenna units are distributed on the side wall of the movable contact in a circular array mode, and signals can be stably received no matter what angle the movable contact rotates.
In order to avoid mutual interference between energy and data signals, the first transceiving isolation module and the second transceiving isolation module both comprise a first band-pass filter and a second band-pass filter, wherein the first band-pass filter allows microwave energy with the working frequency f1 to pass through and prevents the data signals with the working frequency f2 from passing through; the second band-pass filter prevents microwave energy at an operating frequency f1 from passing therethrough and allows data signals at an operating frequency f2 to pass therethrough. By adopting the structure, the energy information can be transmitted independently in the integrated transmission process without mutual influence and interference.
In order to maximize the microwave energy entering the rectifying circuit and improve the conversion rate of converting the microwave energy into the direct current energy, preferably, the energy harvesting module includes an impedance matching network connected to the second transceiver isolation module, the impedance matching network is electrically connected to the rectifying circuit and a filter network in turn, and the filter network is electrically connected to the power management module. The rectification circuit is implemented by adopting a rectifier bridge, the filter network adopts a direct-through filter and is used for filtering higher harmonics, and finally clean direct current is transmitted to the power management module for power supply distribution.
As one of the selection of the preferred component of this application, adopt the wireless serial port communication of ATK-LORA-01/02 between communication module and the transceiver module B, temperature sensor adopts DS18B20, rectifier circuit adopts the diode to go on, and wherein the model that the diode adopted is HSMS2822, high-power microwave source central frequency point 5.8GHz, output 10W, the power management module model is BQ25504.
Has the advantages that:
(1) Compared with an active temperature measuring device, the device performs point-to-point energy supply through external microwave energy, and is long in service life, reliable and higher in safety; compared with a passive temperature measuring device, the passive temperature measuring device has high precision, fixed receiving and sending positions, no need of repeated alignment operation and less environmental influence.
(2) The device of the invention uses energy transmission and communication to share one receiving and transmitting antenna, and simultaneously, the antenna and the equipment to be tested adopt conformal design, thus reducing the size and being convenient for installation and use in the environment of a switch cabinet.
(3) The signal processing and controlling module is arranged between the information link and the energy link in the device of the invention, thereby forming a closed loop feedback with higher reliability.
(4) The device provided by the invention aims to solve the problem that the high-voltage switch cabinet can still realize stable wireless communication and energy simultaneous transmission in a complex environment with a high multipath effect.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic view of the installation state of the temperature detection device on the movable contact of the high-voltage switch cabinet.
Fig. 2 is a block diagram of the system principle and structure of the present application.
Fig. 3 is a block diagram of a transmit-receive isolation module.
FIG. 4 is a functional block diagram of an energy harvesting module.
Fig. 5 is a block diagram of the structure of the energy collection module.
In the figure: 1-an antenna element; 2-packaging the module; 3-outer insulated wire group.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
Example 1:
with reference to fig. 1-2 of the specification, the present embodiment provides an online temperature measurement system for a high-voltage switch cabinet based on an energy information integrated transmission technology, which includes a wireless energy transceiver and a temperature monitoring device that are connected in a wireless transmission manner, where the wireless energy transceiver includes a background control server for sending out a control high-power microwave source, the high-power microwave source radiates energy to the temperature monitoring device through a transceiver module a, the transceiver module a is further sequentially connected with a signal receiving module and a signal processing and control module, and the signal processing and control module is electrically connected with the background control server;
the temperature monitoring device comprises a transceiver module B used for receiving energy radiated by the transceiver module A, the transceiver module B is sequentially connected with an energy collecting module, a power supply management module, a temperature sensor installed in a high-voltage switch cabinet and used for measuring temperature in real time, and a communication module used for being in communication connection with the transceiver module B, and the communication module is electrically connected with the power supply management module.
The working principle is as follows: the background control server controls the high-power microwave source to generate microwave energy through a control instruction output by the system in advance, the microwave energy is sent to the first transceiving isolation module, then is transmitted to the transceiving module A through the first transceiving isolation module and is radiated out, and at the moment, the transmitting part of energy transmission is completed.
The receiving and transmitting module B sends the received microwave energy radiated from the receiving and transmitting module A to the energy collecting module, the energy collecting module converts the microwave energy into direct current energy and sends the direct current energy to the power supply management module for distribution management, and the direct current energy supply power to the temperature sensor and the communication module respectively, so that the process that the microwave energy is converted into electric energy for the temperature sensor used for collecting the temperature of the moving contact of the high-voltage switch cabinet in real time is completed.
The temperature sensor sends acquired temperature data to the communication module, the communication module sends the data to the transceiver module B and sends the data to the transceiver module A in a data form, and the transceiver module A sends the received signals to the signal receiving module and compares the signals after transmitting the signals to the signal processing and control module; when the received temperature data belong to the range of the normal value preset by the system, the temperature data are normally transmitted to the background control server to be displayed and stored in real time, and if the received temperature data exceed the allowable range, alarm information is sent and recorded while the temperature is displayed and stored in real time, so that background workers can know and call the temperature state corresponding to any time period of the high-voltage switch cabinet at any time.
Example 2:
on the basis of embodiment 1, in order to further optimize the system, as shown in fig. 1 to fig. 5 in the description, the transceiver module a includes a first transceiver isolation module connected to the high-power microwave source and the signal receiving module, respectively, the first transceiver isolation module is further connected to a transceiver antenna a, and a wireless transmission connection is established between the transceiver antenna a and the transceiver module B. In this embodiment, the transceiver module B includes a second transceiver isolation module connected to the energy collection module and the communication module, respectively, and the second transceiver isolation module is further connected to a transceiver antenna B, and a wireless transmission connection is established between the transceiver antenna B and the transceiver antenna a.
In order to ensure the stability of signal receiving and avoid the problem of position or angle change caused by dismounting and mounting a moving contact of a high-voltage switch cabinet, the transceiving antenna B is fixedly arranged on the circumferential side wall in the middle of any moving contact of the high-voltage switch cabinet, the transceiving antenna B comprises a plurality of antenna units 1 which are uniformly distributed in the middle of the circumferential side wall of the moving contact, and any antenna unit 1 is electrically connected with the second transceiving isolation module through an outer insulation wire group 3 which surrounds the outer circumferential side wall of the moving contact. Except for the antenna unit 1, when the temperature monitoring device is actually installed, a solid packaging form is adopted to integrate a packaging module 2 installed at the middle position of the side wall of the movable contact, and the detail is shown in fig. 1. The antenna units 1 are distributed on the side wall of the movable contact in a circular array mode, and signals can be stably received no matter what angle the movable contact rotates.
In order to avoid mutual interference between energy and data signals, the first transceiving isolation module and the second transceiving isolation module both comprise a first band-pass filter and a second band-pass filter, wherein the first band-pass filter allows microwave energy with the working frequency f1 to pass through and prevents the data signals with the working frequency f2 from passing through; the second band-pass filter prevents microwave energy at an operating frequency f1 from passing therethrough and allows data signals at an operating frequency f2 to pass therethrough. By adopting the structure, the energy information can be transmitted independently in the integrated transmission process without mutual influence and interference. Specifically, as shown in fig. 2 and 3 in conjunction with the description, the process of transmitting the microwave energy is as follows:
the high-power microwave source enables generated microwave energy to enter the first transceiving isolation module through a P1 port, and then the microwave energy is output to the transceiving antenna A through a P3 port and radiated out; when receiving the microwave energy, the transceiving antenna B enters the second transceiving isolation module through the P4 port and is output to the energy collection module through the P5 port for subsequent energy conversion so as to obtain direct current for energy supply.
When data signal transmission is performed, the process is as follows:
the temperature sensor sends collected temperature data to the communication module, the temperature data enters the second receiving and transmitting isolation module through the P6 port, the temperature data is transmitted to the receiving and transmitting antenna B through the P4 port, the receiving and transmitting antenna A receives data information sent by the receiving and transmitting antenna B, the data information enters the first receiving and transmitting isolation module through the P3 port, the data information is sent to the signal receiving module through the P2 port, and the data information is sent to the background control server for displaying, storing, alarming, prompting and the like after being compared and processed through the signal processing and control module. In the process, the P1 port and the P2 port are isolated from each other, and the P5 port and the P6 port are isolated from each other, so that mutual interference between energy and data can not occur when common antenna transmission is carried out.
In order to achieve maximum microwave energy entering the rectifying circuit and improve the conversion rate of converting the microwave energy into the dc energy, in this embodiment, the energy collecting module includes an impedance matching network connected to the second transceiving isolating module, the impedance matching network is electrically connected to the rectifying circuit and the filter network in sequence, and the filter network is electrically connected to the power management module. The rectification circuit is implemented by adopting a rectifier bridge, the filter network adopts a direct-connection filter and is used for filtering out higher harmonics, and finally clean direct current is transmitted to the power management module for power supply distribution.
In this embodiment, the communication module and the transceiver module B are in ATK-LORA-01/02 wireless serial communication, the temperature sensor is DS18B20, the rectifier circuit is implemented by a diode pair, the diode type is HSMS2822, the high-power microwave source has a center frequency of 5.8GHz and an output power of 10W, and the power management module type is BQ25504.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. High tension switchgear online temperature measurement system based on energy information integration transmission technology, its characterized in that: the wireless energy receiving and transmitting device comprises a wireless energy receiving and transmitting device and a temperature monitoring device which are in wireless transmission connection, wherein the wireless energy receiving and transmitting device comprises a background control server which is used for sending and controlling a high-power microwave source, the high-power microwave source radiates energy to the temperature monitoring device through a receiving and transmitting module A, the receiving and transmitting module A is also sequentially connected with a signal receiving module and a signal processing and controlling module, and the signal processing and controlling module is electrically connected with the background control server;
the temperature monitoring device comprises a transceiver module B used for receiving energy radiated by the transceiver module A, an energy collecting module, a power management module, a temperature sensor installed in a high-voltage switch cabinet and used for measuring temperature in real time and a communication module used for being in communication connection with the transceiver module B, wherein the transceiver module B is also connected with the energy collecting module in sequence, and the communication module is also electrically connected with the power management module.
2. The high-voltage switch cabinet online temperature measuring system based on the energy information integrated transmission technology according to claim 1, characterized in that: the receiving and transmitting module A comprises a first receiving and transmitting isolation module which is respectively connected with the high-power microwave source and the signal receiving module, the first receiving and transmitting isolation module is also connected with a receiving and transmitting antenna A, and wireless transmission connection is established between the receiving and transmitting antenna A and the receiving and transmitting module B.
3. The high-voltage switch cabinet online temperature measuring system based on the energy information integrated transmission technology according to claim 2, characterized in that: the receiving and transmitting module B comprises a second receiving and transmitting isolation module which is respectively connected with the energy collecting module and the communication module, the second receiving and transmitting isolation module is also connected with a receiving and transmitting antenna B, and wireless transmission connection is established between the receiving and transmitting antenna B and the receiving and transmitting antenna A.
4. The high-voltage switch cabinet online temperature measurement system based on the energy information integrated transmission technology as claimed in claim 3, wherein: the receiving and transmitting antenna B is fixedly arranged on the circumferential side wall of the middle part of any moving contact of the high-voltage switch cabinet, the receiving and transmitting antenna B comprises a plurality of antenna units (1) which are uniformly distributed on the middle part of the circumferential side wall of the moving contact, and any antenna unit (1) is electrically connected with the second receiving and transmitting isolation module through an external insulation line group (3) which surrounds the circumferential side wall of the moving contact.
5. The high-voltage switch cabinet online temperature measurement system based on the energy information integrated transmission technology according to any one of claims 3 to 4, characterized in that: the first transceiving isolation module and the second transceiving isolation module respectively comprise a first band-pass filter and a second band-pass filter, wherein the first band-pass filter allows microwave energy with the working frequency of f1 to pass through and prevents a data signal with the working frequency of f2 from passing through; the second band-pass filter prevents microwave energy at an operating frequency f1 from passing therethrough and allows data signals at an operating frequency f2 to pass therethrough.
6. The high-voltage switch cabinet online temperature measuring system based on the energy information integrated transmission technology according to claim 5, characterized in that: the energy collection module comprises an impedance matching network connected with the second transceiving isolation module, the impedance matching network is sequentially electrically connected with a rectification circuit and a filter network, and the filter network is electrically connected with the power management module.
7. The high-voltage switch cabinet online temperature measuring system based on the energy information integrated transmission technology as claimed in claim 6, wherein: the communication module and the transceiver module B are in wireless serial port communication through ATK-LORA-01/02, the temperature sensor adopts DS18B20, the rectifier circuit adopts a diode pair, the type adopted by the diode is HSMS2822, the central frequency point of the high-power microwave source is 5.8GHz, the output power is 10W, and the type of the power management module is BQ25504.
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