Temperature measuring device and temperature measuring system

Abstract

The utility model provides a temperature measuring device and a temperature measuring system, the temperature measuring device comprises a signal transmit-receive unit, a control unit, a communication unit and a power supply unit, and the control unit is used for controlling the signal transmit-receive unit to transmit microwaves with corresponding frequencies to a temperature acquisition unit; the wireless signal is returned by the different temperature acquisition units under excitation of microwaves with corresponding frequencies and carries temperature information of a position to be measured, the control unit is used for carrying out data analysis on the wireless signal to obtain temperature data, and the communication unit is used for sending the temperature data to display equipment for displaying. The power supply unit is used for providing electric energy for each component. By adopting the temperature measuring device and the temperature measuring system provided by the invention, the accuracy of wireless temperature measurement can be improved, and a power failure can be found in time.

Description

Technical Field

[0001] The present application relates to the field of railway safe transportation, and in particular to a temperature measuring device and a temperature measuring system. Background Art

[0002] Railway power supply systems provide crucial power support for safe railway transportation. However, related equipment and facilities, such as lightning arresters, insulators, and cable connectors, are prone to overheating, which can lead to major safety incidents such as explosions and fires. This can cause power outages and compromise safe railway operations. Therefore, regular temperature monitoring of the measured points (high-voltage contacts) in railway power supply systems is essential.

[0003] Currently, the most commonly used method for detecting high-voltage contact temperature is to use a portable infrared measuring instrument to perform wireless measurements at each point. This method calculates the temperature of a hot spot by measuring the infrared radiation emitted by the measuring instrument. However, in addition to being related to the hot spot's own temperature, the infrared radiation emitted by the hot spot is also easily affected by many factors, including weather conditions, sunlight intensity, the amount of dust and rust on the surface of the measured point, and the distance to the measured point. Therefore, the infrared radiation emitted by the measured point cannot accurately reflect the measured point's temperature information, making it difficult to guarantee measurement accuracy. Utility Model Content

[0004] The present application provides a temperature measuring device and a temperature measuring system, which utilize microwave maser technology to solve the problems of large interference and difficulty in ensuring measurement accuracy in wireless temperature measurement using infrared radiation in existing railway power supply systems.

[0005] In a first aspect, the present application provides a temperature measurement device, comprising: a signal transceiver unit, a control unit, a communication unit, and a power supply unit;

[0006] The signal transceiver unit is connected to the control unit, the control unit is connected to the communication unit, and the power supply unit is connected to the signal transceiver unit, the control unit and the communication unit respectively;

[0007] The control unit is used to control the signal transceiver unit to transmit microwaves of corresponding frequencies to different temperature acquisition units installed at at least one location to be measured, and receive wireless signals carrying temperature information of the location to be measured returned by the temperature acquisition units under the excitation of microwaves of corresponding frequencies, and the signal transceiver unit is used to forward the wireless signals to the control unit;

[0008] The control unit is used to perform data analysis on the wireless signal to obtain temperature data;

[0009] The communication unit is used to send the temperature data output by the control unit to the display device for display;

[0010] The power supply unit is used to provide electrical energy to the signal transceiver unit, the control unit and the communication unit.

[0011] The temperature measuring device adopts the above technical solution. Since the temperature acquisition unit is directly installed at the position to be measured, it can directly obtain accurate temperature data of the position to be measured. At this time, the temperature measuring device uses the signal transceiver unit to transmit microwaves of corresponding frequency to the temperature acquisition unit. When the temperature acquisition unit receives the microwaves of corresponding frequency, it is excited and returns a wireless signal carrying information such as temperature, position, and time to the signal transceiver unit. The control unit analyzes the wireless signal and can at least obtain temperature data. Therefore, the temperature data wirelessly acquired at one end of the temperature measuring device can truly reflect the temperature conditions at one end of the position to be measured, greatly improving the accuracy of temperature measurement.

[0012] Based on the above technical solution, the present application can also make the following improvements:

[0013] In a possible implementation, the display device includes a first display screen, which is wired to the control unit via a communication unit, and the first display screen is integrated with the signal transceiver unit, the control unit, the communication unit, and the power supply unit.

[0014] Generally, the signal transceiver unit, control unit, communication unit and power supply unit are integrated together. In the above implementation, the first display screen in the display device is integrated with other units to facilitate observation of temperature data and other information directly on the first display screen during detection.

[0015] In a possible implementation, the display device includes a second display screen located at a remote server, and the second display screen is wirelessly connected to the control unit via a communication unit.

[0016] In the above implementation, the acquired temperature data can be directly wirelessly transmitted to the second display screen of the remote server for centralized display.

[0017] In a possible implementation, the system further includes: a storage unit connected to the control unit and configured to store temperature data generated by the control unit.

[0018] In the above implementation, the storage unit can be used to store historical temperature data and other information, which can be easily retrieved by the background.

[0019] In a possible implementation, the device further includes: a data interface unit connected to the storage unit, configured to provide the temperature data in the storage unit to the external device when connected to the external device.

[0020] In the above implementation, the data interface unit is provided to facilitate the external device to directly obtain information such as temperature history data from the storage unit.

[0021] In a possible implementation, the power supply unit includes:

[0022] The power filter is provided with an AC interface for receiving external AC power and filtering the external AC power;

[0023] The AC-DC conversion module is connected to the power filter, the signal transceiver unit, the control unit and the communication unit, and is used to convert external AC power into DC power and output it to the signal transceiver unit, the control unit and the communication unit.

[0024] The above implementation method can utilize an external 220V AC power to power the temperature measuring device.

[0025] In a possible implementation, the power supply unit includes a battery. Providing a power supply unit with a battery can ensure the power supply of the temperature measuring device, which is conducive to the temperature measuring device performing temperature measurement operations at the location to be measured anytime and anywhere.

[0026] In a possible implementation, the system further includes: an alarm unit connected to the control unit, configured to issue an alarm message when the temperature data output by the control unit exceeds a preset value.

[0027] In the above implementation, when the temperature data of the position to be measured exceeds a preset value as determined by the control unit, the alarm unit may be controlled to issue an alarm message.

[0028] In a second aspect, the present application further provides a temperature measurement system, comprising the temperature measurement device of any of the above embodiments, a remote server, and a plurality of temperature acquisition units, wherein the temperature measurement device is connected to the temperature acquisition unit and the remote server respectively;

[0029] The multiple temperature collection units are respectively fixed to different positions to be measured through the mounting parts, and are used to collect the temperatures of the different positions to be measured;

[0030] The temperature measuring device is used to transmit microwaves of corresponding frequency to at least one temperature acquisition unit. When the temperature acquisition unit receives the microwave, it is stimulated to return a wireless signal carrying temperature information to the temperature measuring device. The temperature measuring device is used to perform data analysis on the wireless signal to obtain temperature data and send the temperature data to a remote server.

[0031] In the aforementioned temperature measurement system, each temperature acquisition unit installed at a different location to be measured is paired with a temperature measurement device. Each temperature acquisition unit and the temperature measurement device have matching frequencies. When the temperature measurement device transmits a corresponding microwave frequency to the temperature acquisition units at each location to be measured, the temperature acquisition unit, upon receiving the matching microwave frequency, transmits the collected temperature, address, time, and other information to the temperature measurement device in the form of a carrier signal. The temperature measurement device then extracts the temperature and other information from the carrier signal and sends it to a remote server. Therefore, in this temperature measurement system, the temperature measurement device can simultaneously and wirelessly obtain accurate temperature data from multiple locations to be measured, analyze this temperature data, and thus promptly and accurately determine the location of the fault.

[0032] In a possible implementation, the temperature acquisition unit uses a maser temperature sensor.

[0033] In the above implementation method, since the general wireless temperature acquisition unit needs to be powered by a battery or an external power supply, it is relatively troublesome to replace and use it. The temperature acquisition unit using the maser temperature sensor has low energy consumption and can work directly under the excitation of microwaves without the need for batteries or external power supplies. It truly achieves passive wireless at the temperature acquisition end and effectively solves the wiring and power supply problems of the traditional wireless temperature acquisition unit.

[0034] The present application provides a temperature measurement device and a temperature measurement system, comprising a signal transceiver unit, a control unit, a communication unit, and a power supply unit; the signal transceiver unit is connected to the control unit, the control unit is connected to the communication unit, and the power supply unit is respectively connected to the signal transceiver unit, the control unit, and the communication unit; the control unit is used to control the signal transceiver unit to transmit microwaves of corresponding frequencies to temperature acquisition units installed at at least one position to be measured, and receive wireless signals containing temperature information of the position to be measured returned by the temperature acquisition unit under the excitation of microwaves of corresponding frequencies, the signal transceiver unit is used to forward the wireless signals to the control unit; the control unit is used to perform data analysis on the wireless signals to obtain temperature data; the communication unit is used to send the temperature data output by the control unit to a display device for display; and the power supply unit is used to provide electrical energy to the signal transceiver unit, the control unit, and the communication unit. By receiving the actual measured temperature data, the temperature measurement device avoids interference from many factors, can improve the accuracy of wireless temperature measurement, and is conducive to timely detection of power failures. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0036] Figure 1This is a structural diagram of an embodiment of a temperature measurement system of the present application;

[0037] Figure 2 This is a structural diagram of the first embodiment of the temperature measuring device of the present application;

[0038] Figure 3 This is a structural diagram of a second embodiment of a temperature measuring device of the present application;

[0039] Figure 4 This is a structural diagram of a third embodiment of a temperature measuring device of the present application;

[0040] Figure 5 This is a structural diagram of an embodiment of a temperature acquisition unit of the present application;

[0041] Figure 6 This is a structural diagram of another embodiment of a temperature acquisition unit of the present application.

[0042] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

[0043] Description of reference numerals:

[0044] 100 - temperature acquisition unit; 110 - wireless transmission unit; 120 - sensor body; 130 - antenna; 140 - power module;

[0045] 200 - temperature measuring device; 210 - signal transceiver unit; 220 - control unit; 230 - communication unit; 240 - power supply unit; 250 - display device; 251 - first display screen; 260 - storage unit; 270 - data interface unit;

[0046] 300-remote server; 310-second display screen. DETAILED DESCRIPTION

[0047] Currently, in railway power supply systems, the temperature of lightning arresters, insulators, cable heads, and other related equipment is detected wirelessly using infrared measuring instruments. This method calculates the temperature of the hot spot by measuring the infrared radiation value of the hot spot and the distance between the measuring instrument and the measuring point. However, the infrared radiation value reaching the measuring instrument from the hot spot is not only related to the hot spot's own temperature and distance, but is also affected by many factors, including weather conditions (sunny, cloudy, rainy, snowy, foggy), sunlight intensity (morning, noon, evening, night), the amount of dust on the surface of the measured point, and the degree of rust. Therefore, the infrared radiation of the measured point cannot accurately reflect the measured point's temperature information. Correction algorithms are generally used to adjust this information, but this still makes it difficult to guarantee measurement accuracy.

[0048] In response to the above technical problems, the following specific embodiments and accompanying drawings are used to describe in detail the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0049] Figure 1 This is a schematic diagram of the structure of an embodiment of a temperature measurement system of the present application. This embodiment provides a temperature measurement system for a railway power supply system. The temperature measurement system includes a temperature measurement device 200, a remote server 300, and multiple temperature acquisition units 100. The temperature measurement device 200 is connected to the temperature acquisition unit 100 and the remote server 300 respectively. The temperature measurement device 200 is a handheld device that can wirelessly connect to the remote server 300 and the temperature acquisition unit 100.

[0050] Generally speaking, railway power supply systems have numerous locations to be measured, such as lightning arresters, insulators, and cable heads, which are prone to heat generation. Therefore, multiple temperature acquisition units 100 are each secured to different locations via mounting portions to collect temperatures at these locations. In other applications requiring temperature monitoring, such as power generation and construction, the locations to be measured can be selected based on the specific application, and this is not intended to limit these applications.

[0051] The temperature measuring device 200 is used to transmit microwaves of corresponding frequency to at least one temperature acquisition unit 100. When the temperature acquisition unit 100 receives the microwave, it is stimulated to return a wireless signal carrying temperature information to the temperature measuring device 200. The temperature measuring device 200 is used to perform data analysis on the wireless signal to obtain temperature data and send the temperature data to the remote server 300.

[0052] The temperature measuring device 200 has different corresponding frequencies with different temperature sensors, and these corresponding frequencies can be set in advance. For example, the temperature measuring device 200 has a matching corresponding frequency f1 with temperature acquisition unit A, and a matching corresponding frequency f2 with temperature acquisition unit B. F1 and f2 are different, and different temperature acquisition units 100 have different operating frequencies with the temperature measuring device 200 to avoid interference from signals of the same frequency. When the temperature measuring device 200 transmits microwaves with a frequency of f1 to temperature acquisition unit A, it stimulates temperature acquisition unit A to transmit the collected temperature data and other information to the temperature measuring device 200 in the form of a wireless signal.

[0053] In some possible implementations, the temperature acquisition unit A can load temperature data and other information into a carrier and send microwaves with a frequency of f1' to the temperature measuring device 200. Here, the frequency f1' is the microwave frequency generated by the stimulated radiation of the temperature acquisition unit A. Among them, f1' is different from f1, which can avoid co-frequency interference.

[0054] With respect to the wireless signal returned by the temperature acquisition unit 100 and loaded with information such as temperature data as a carrier, the temperature measuring device 200 can perform data analysis by demodulating the wireless signal, thereby extracting information such as temperature data for storage and forwarding.

[0055] Taking into account the need to perform abnormal analysis on the temperature data of different locations to be measured, the temperature measuring device 200 needs to send the temperature data and other information to the remote server 300. After receiving the temperature data and other information, the remote server 300 can perform the following processing, such as: graphically displaying the distribution of different locations to be measured and the temperature data corresponding to the locations to be measured on the map, and providing timely alarms of abnormal temperature status information to management personnel; displaying historical temperature curves of different locations to be measured; saving information such as abnormal historical temperature data of different locations to be measured, using it as a basis for fault analysis, and analyzing the health status of the equipment to be measured accordingly.

[0056] It should be noted that the wireless signal transmitted by the temperature acquisition unit 100 not only carries the temperature data collected by the temperature acquisition unit 100, but also carries information such as the corresponding number, address, acquisition time, and whether the temperature exceeds a set threshold. This allows the remote server 300 to associate the analyzed temperature data with the temperature acquisition unit 100, and if there is a temperature anomaly, the cause and location of the fault can be promptly identified.

[0057] In the entire temperature measurement system, the temperature measuring device 200 can be remotely controlled by the remote server 300 or operated by a handheld employee, and is only required to collect temperature at some of the locations to be measured. In this way, the temperature measuring device 200 only needs to send microwaves of corresponding frequencies to the temperature collection units 100 of these locations to be measured, thereby realizing the temperature measurement of the specified locations to be measured by the temperature measurement system.

[0058] Figure 2This is a schematic structural diagram of a first embodiment of a temperature measuring device of the present application. The temperature measuring device includes: a signal transceiver unit 210, a control unit 220, a communication unit 230, and a power supply unit 240. The signal transceiver unit 210 is connected to the control unit 220, the control unit 220 is connected to the communication unit 230, and the power supply unit 240 is connected to the signal transceiver unit 210, the control unit 220, and the communication unit 230. The control unit 220 is used to control the signal transceiver unit 210 to transmit microwaves of corresponding frequencies to the temperature acquisition unit 100 installed at at least one location to be measured, and to receive wireless signals containing temperature information of the location to be measured returned by the temperature acquisition unit 100 under the excitation of microwaves of corresponding frequencies. The signal transceiver unit 210 is used to forward the wireless signals to the control unit 220; the control unit 220 is used to perform data analysis on the wireless signals to obtain temperature data; the communication unit 230 is used to send the temperature data output by the control unit 220 to a display device for display; and the power supply unit 240 is used to provide power to the signal transceiver unit 210, the control unit 220, and the communication unit 230.

[0059] The control unit 220 is the core control part of the temperature measuring device 200. It adopts the X86 architecture. It can control the signal transceiver unit 210 to transmit microwaves of corresponding frequencies to the temperature acquisition units 100 installed at different locations to be measured under the remote control of the remote server 300 or the operation of the handheld employee, and receive the wireless signal containing the temperature data of the location to be measured and other information returned by the temperature acquisition unit 100 under the excitation of the microwave of the corresponding frequency. Figure 1 As shown, for example, the signal transceiver unit 210 sends microwave signals with frequencies f1 and f2 to the temperature measurement unit A and the temperature measurement unit B, respectively. Under microwave excitation, the two temperature measurement units load their collected temperature data and other information into wireless signals with frequencies f1' and f2' and send them to the signal transceiver unit 210, where f2' is the frequency generated by the stimulated radiation of the temperature measurement unit B under the action of the microwave frequency f2.

[0060] After receiving the returned wireless signal, the signal transceiver unit 210 forwards it to the control unit 220. The control unit 220 analyzes the wireless signal to obtain temperature data, the corresponding temperature acquisition unit 100 number, the acquisition time, the address of the location to be measured, and other information.

[0061] The communication unit 230 is used to send information such as temperature data output by the control unit to the display device 250 for display, and the power supply unit 240 is used to provide power to the signal transceiver unit 210, the control unit 220 and the communication unit 230.

[0062] In one possible implementation, Figure 3This is a schematic diagram of the structure of the second embodiment of the temperature measurement device of the present application. The display device 250 includes a first display screen 251. The first display screen 251 is connected to the control unit 220 via a communication unit 230 by wired connection, such as RS232 / 485. The first display screen 251 is integrated with the signal transceiver unit 210, the control unit 220, the communication unit 230, and the power supply unit 240. In this case, the power supply unit 240 is also used to supply power to the first display screen 251.

[0063] The provision of the first display screen 251 is not only conducive to the portability of the temperature measuring device 200 , but also convenient for handheld workers to directly observe various information such as temperature data on the first display screen 251 .

[0064] In another embodiment, the display device 250 includes a second display screen 310 located in a remote server, and the second display screen 310 is wirelessly connected to the control unit 220 via the communication unit 230 .

[0065] The second display screen 310 is located on the remote server 300 and is wirelessly connected to the control unit 220 via the communication unit 230, such as 4G / 5G / WIFI / Lora / Zigbee. The provision of the second display screen 310 facilitates the centralized display of the acquired temperature data on the remote server 300. For example, the second display screen 310 can graphically display the distribution of different test locations and the temperature data corresponding to the test locations, providing timely warnings of abnormal temperature conditions to management personnel; displaying historical temperature curves of the test locations based on selection; and saving information such as abnormal historical temperature data at different test locations as a basis for fault analysis, thereby analyzing the health status of the test equipment.

[0066] In this embodiment, only one of the first display screen 251 and the second display screen 310 can be set. For example, when only the second display screen 310 is set, the temperature measuring device 200 does not need to display the current temperature data. It only needs to send the temperature data and other information of the location to be detected to the remote server 300, so that the remote server 300 can analyze and display the temperature data and other information.

[0067] In one possible implementation, Figure 4 This is a schematic diagram of the structure of the third embodiment of the temperature measuring device of the present application. The temperature measuring device 200 is Figure 2 The illustrated temperature measuring device 200 is further equipped with a storage unit 260, which is connected to the control unit 220 and is used to store temperature data and other information generated by the control unit 220. This allows the historical temperature data and other information stored in the storage unit 260 to be easily accessed by the backend at any time. Without the storage unit 260, the temperature data and other information collected by the temperature measuring device 200 would only be stored on the remote server 300.

[0068] In this embodiment, sometimes it is necessary to obtain historical temperature data nearby, and a data interface unit 270 is added, which is connected to the storage unit 260 and is used to provide the temperature data in the storage unit 260 to the external device when connected to the external device.

[0069] In one possible implementation, the power supply unit 240 can adopt two power supply methods. For the temperature measuring device 200 that is not to be carried, it can be directly powered by an external 220V AC power. At this time, the power supply unit 240 includes a power filter and an AC-DC conversion module.

[0070] The power filter is provided with an AC power interface for receiving external AC power and filtering the external AC power.

[0071] The AC-DC conversion module is connected to the power filter, the signal transceiver unit 210, the control unit 220 and the communication unit 230, and is used to convert the external AC power into DC power and output it to the signal transceiver unit 210, the control unit 220 and the communication unit 230. If a first display screen 251 is provided, DC power must also be output to the first display screen 251.

[0072] For the temperature measuring device 200 that is often carried, the power supply unit 240 includes a battery to ensure power supply during temperature measurement operations anytime and anywhere.

[0073] In a possible implementation, the temperature measuring device 200 may further be provided with an alarm unit connected to the control unit 220 for issuing an alarm message when the temperature data output by the control unit 220 exceeds a preset value.

[0074] If the wireless signal returned by the temperature acquisition unit 100 does not carry information on whether the temperature data exceeds the preset value, the control unit 220 needs to make a judgment. Specifically, the control unit 220 can compare the temperature data corresponding to the temperature acquisition unit 100 with the corresponding preset value. If the temperature data exceeds the preset value, the alarm unit is triggered to issue an alarm message.

[0075] If the wireless signal returned by the temperature acquisition unit 100 naturally carries information about whether the temperature data exceeds a preset value (this can be done solely by the temperature acquisition unit 100), the control unit 220 does not need to compare the temperature data with the preset value. For example, if the abnormality information is 0, it indicates that there is no abnormality, while if the abnormality information is 1, it indicates that the temperature data at the measured location corresponding to the temperature acquisition unit 100 exceeds the preset value. In this case, the control unit 220 only needs to determine whether the parsed abnormality information is 0 or 1. If it is 1, the alarm unit is triggered to issue an alarm message.

[0076] The above alarm information can be displayed in the form of text or graphics (including video) on the first display screen 251, sound through a speaker, or vibration prompt through a buzzer, or it can be a combination of the above-mentioned multiple alarm methods. This application does not make specific restrictions here.

[0077] If the temperature measuring device 200 is not equipped with an alarm unit, the abnormal information indicating whether the temperature data is abnormal can be directly sent to the remote server 300 for processing. Specifically, the remote server 300 can determine the corresponding temperature collection unit 100 number and the address of the location to be measured based on the received abnormal information.

[0078] Figure 5 This is a schematic diagram of the structure of an embodiment of a temperature acquisition unit of the present application. In the temperature measuring device 200 and the temperature measuring system provided in the above embodiment, the temperature acquisition unit 100 with a wireless data transmission function generally includes a wireless transmission unit 110 and a sensor body 120. Figure 5 As shown, the wireless transmission unit 110 is used to send and receive signals, and the sensor body 120 is used to collect temperature data at the location to be measured. The sensor body 120 has a relatively low power consumption, generally 0.05mW, and can obtain energy through in-situ energy replenishment. The wireless transmission unit 110, which transmits temperature data and other information, is generally implemented using technologies such as Zigbee and Lora. Its power consumption is generally high (over 18mW) and cannot be provided through in-situ energy replenishment. Therefore, a battery is generally provided in the temperature acquisition unit 100 as a power supply module 140 for power supply. However, the outdoor environment of the battery is unsafe and its service life is limited. It needs to be replaced regularly, which is a relatively dangerous operation in the railway power supply system.

[0079] In order to solve the above problems, this embodiment first explains the relevant terms:

[0080] Stimulated emission: The principle is that when an atom at a high energy level receives a photon with an energy difference equal to its own, it is stimulated to a low energy level and simultaneously emits two photons of the same frequency, direction, phase, and polarization. In practice, when a stimulated module receives electromagnetic waves of a certain frequency, it generates electromagnetic waves of a different frequency.

[0081] Maser technology: A wireless communication technology for measuring and transmitting pulse signals. It operates directly through spatial electromagnetic waves without energy conversion and charging processes, so there is no energy loss in circuit operation. Therefore, electromagnetic waves less than 10 μW can drive the maser transistor to work. There is a three-level system inside the maser transistor (the energy levels are Ec, Er, and Eh respectively, and Ec < Er < Eh). When a certain frequency of pump energy is input, electrons in the low-energy level Ec will be driven to the high-energy level Eh. The middle energy level Er is controlled by the sensing chip and is directly related to external information (such as temperature, pressure, etc.). It will stimulate the electrons in the high-energy level Eh to transition downward and emit electromagnetic waves of different frequencies, thereby carrying out sensing information.

[0082] Therefore, the temperature acquisition unit 100 adopting maser technology can overcome the problems existing in the prior art. In this embodiment, a temperature measurement system is provided. The temperature acquisition unit 100 adopts a maser temperature sensor. The temperature acquisition unit 100 based on maser technology Figure 6 is a schematic structural diagram of another embodiment of the temperature acquisition unit of this application. As Figure 6 shown, it includes an antenna 130, a sensor body 120, and an installation part (not shown in the figure). The sensor body 120 adopts a maser temperature sensor.

[0083] The installation part can adopt common fixing methods such as nut type, hoop, watchband type, wire clip, and caliper according to different measured positions. This embodiment does not make specific limitations here.

[0084] The antenna 130 is used to receive the microwave of the corresponding frequency emitted by the temperature measurement device 200, and there is no need to adopt technologies with high power consumption such as Zigbee and Lora. The maser temperature sensor is a single-transistor operation. It can be directly driven to work under the action of the microwave of the corresponding frequency without a storage battery and an external power supply, and can also meet the overall power consumption (less than 1 mW). Moreover, the microwave reception frequency is different from the information loading frequency, which can maximally avoid co-frequency interference and information congestion.

[0085] It can be seen that if the temperature measurement system adopts the temperature acquisition unit 100 based on maser technology, it can reduce the complexity and power consumption of the temperature measurement system, and the anti-fading and anti-interference performance of wireless transmission is stronger, greatly improving the accuracy of temperature data, which is beneficial to timely discovering power failures.

[0086] It can be understood that although the above embodiment mainly collects temperature data of the measured position, it can be fully applied to the collection of other parameters in the railway power supply system, such as pressure, instantaneous current, etc., and can also be applied to other technical fields that require accurate collection of sensor data.

[0087] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A temperature measuring device, characterized in that: include: a signal transceiver unit (210), a control unit (220), a communication unit (230), and a power supply unit (240); The signal transceiver unit (210) is connected to the control unit (220), the control unit (220) is connected to the communication unit (230), and the power supply unit (240) is connected to the signal transceiver unit (210), the control unit (220), and the communication unit (230) respectively; The control unit (220) is used to control the signal transceiver unit (210) to transmit microwaves of corresponding frequencies to the temperature acquisition unit (100) installed at at least one location to be measured, and to receive wireless signals carrying temperature information of the location to be measured returned by the temperature acquisition unit (100) under the excitation of the microwaves of the corresponding frequency, and the signal transceiver unit (210) is used to forward the wireless signals to the control unit (220); The control unit (220) is used to perform data analysis on the wireless signal to obtain temperature data; The communication unit (230) is used to send the temperature data output by the control unit (220) to the display device (250) for display; The power supply unit (240) is used to provide electric energy to the signal transceiver unit (210), the control unit (220) and the communication unit (230).

2. The temperature measuring device according to claim 1, characterized in that The display device (250) comprises a first display screen (251), wherein the first display screen (251) is connected to the control unit (220) via a communication unit (230) via a wire, and the first display screen (251) is integrated with the signal transceiver unit (210), the control unit (220), the communication unit (230) and the power supply unit (240).

3. The temperature measuring device according to claim 1, characterized in that The display device (250) includes a second display screen located at a remote server (300), and the second display screen is wirelessly connected to the control unit (220) via a communication unit (230).

4. The temperature measuring device according to claim 1, characterized in that Also includes: The storage unit (260) is connected to the control unit (220) and is used to store the temperature data generated by the control unit (220).

5. The temperature measuring device according to claim 4, characterized in that: Also includes: The data interface unit (270) is connected to the storage unit (260) and is used to provide the temperature data in the storage unit (260) to the external device when connected to the external device.

6. The temperature measuring device according to claim 1, characterized in that The power supply unit (240) comprises: The power filter is provided with an AC interface for receiving external AC power and filtering the external AC power; An AC-DC conversion module is connected to a power filter, a signal transceiver unit (210), a control unit (220), and a communication unit (230), and is used to convert external alternating current into direct current and output the direct current to the signal transceiver unit (210), the control unit (220), and the communication unit (230).

7. The temperature measuring device according to claim 1, characterized in that The power supply unit (240) includes a battery.

8. The temperature measuring device according to claim 1, characterized in that: Also includes: An alarm unit is connected to the control unit (220) and is used to issue an alarm message when the temperature data output by the control unit (220) exceeds a preset value.

9. A temperature measurement system, characterized in that: The device comprises a temperature measuring device (200) according to any one of claims 1 to 8, a remote server (300), and a plurality of temperature acquisition units (100), wherein the temperature measuring device (200) is connected to the temperature acquisition units (100) and the remote server (300) respectively; The multiple temperature collection units (100) are respectively fixed on different positions to be measured through mounting parts, and are used to collect temperatures at the different positions to be measured; The temperature measuring device (200) is used to transmit microwaves of a corresponding frequency to at least one temperature acquisition unit (100); the temperature acquisition unit (100) is used to be stimulated to return a wireless signal carrying temperature information to the temperature measuring device (200) upon receiving the microwaves; the temperature measuring device (200) is used to perform data analysis on the wireless signal to obtain temperature data, and to send the temperature data to a remote server (300).

10. The temperature measurement system according to claim 9, characterized in that: The temperature acquisition unit (100) adopts a maser temperature sensor.

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