Power distribution cabinet temperature abnormity early warning and adjusting device system and use method thereof

Abstract

The invention relates to the technical field of power system safety monitoring, in particular to a power distribution cabinet temperature abnormity early warning and adjusting device system and a using method thereof. The device is composed of a controller, an alarm unit, a detection unit and a temperature measurement data management module. The controller integrates data processing, control coordination and database functions, and realizes data interaction and storage. The alarm unit integrates an indoor air conditioner, short message sending, sound-light alarm and a fan, and responds to temperature abnormity by controlling the coordination module. The detection unit uses a room temperature detector and an infrared thermal imaging thermodetector to collect data and transmits the data to the data processing module. The temperature measurement data management module is connected to the database through a high-speed network and supports checking and management of a temperature measurement standing book. The whole system aims at timely early warning and adjusting temperature abnormity of the power distribution cabinet to ensure safe operation of equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of power system safety monitoring, and in particular to a distribution cabinet temperature abnormality early warning and regulation device system and a use method thereof. Background Art

[0002] During the use of low-voltage distribution cabinets, when the switch wire screws or meter screws are loose, resulting in poor line contact, it will cause contact resistance heating, the insulating material will melt or even ignite, and electrical fire accidents are likely to occur. When the air switch fails, the line load is too large, or the cables used are too thin, it is also easy to cause the line to heat up and cause accidents. Therefore, a temperature abnormality automatic warning and power-off system and device for distribution cabinets that can sense temperature abnormalities in time and automatically handle temperature abnormalities is needed. Summary of the invention

[0003] The present invention provides a distribution cabinet temperature abnormality warning and adjustment device system and its use method, aiming to solve the problems of temperature abnormality and electrical fire hazards caused by loose switch crimping screws, loose meter screws, air switch failure, excessive line load or too thin cables in the distribution cabinet in the prior art. The device monitors the internal temperature of the distribution cabinet in real time through infrared imaging technology, and immediately warns and responds once an abnormality is found, which can effectively prevent the occurrence of electrical fire accidents.

[0004] The present invention proposes the following technical solutions: The temperature abnormality warning and adjustment device system of the power distribution cabinet includes a power distribution room, a power distribution cabinet, and a controller, and is characterized in that it includes an alarm unit, a detection unit, and a temperature measurement data management module; The controller includes a data processing module, a control coordination module, and a database. The data processing module is respectively connected to the control coordination module and the database by signal, and the database is connected to the control coordination module by electrical signal; The alarm unit includes an indoor air conditioner, a fan, a short message sending module, and an audible and visual alarm, wherein the indoor air conditioner, the short message sending module, the audible and visual alarm, and the fan are all connected to the control and coordination module by signal; The detection unit includes a room temperature detector and an infrared thermal imaging thermometer device, both of which are connected to the data processing module signal; the infrared thermal imaging thermometer device is fixedly installed on the top of the power distribution cabinet; The temperature measurement data management module is connected to the database through a high-speed network, and the temperature measurement data management module can view the temperature measurement records stored in the database.

[0005] The abnormal temperature warning and adjustment device system of the power distribution cabinet is characterized in that the room temperature detector is installed indoors, and the room temperature detector detects the indoor temperature.

[0006] The temperature abnormality warning and adjustment device system of the power distribution cabinet is characterized in that the infrared thermal imaging thermometer device comprises an infrared imager (1), an electric telescopic rod (2), and a base (3); the base (3) is installed on the top of the power distribution cabinet; a turntable (4) is rotatably installed above the base (3); the electric telescopic rod (2) is installed above the turntable (4); the electric telescopic rod (2) comprises a first telescopic rod section (5) and a second telescopic rod section (6); the first telescopic rod section (5) and the second telescopic rod section (6) are respectively fixedly installed with a first-section rod connecting ring (7) and a second-section rod connecting ring (8); the second telescopic rod section (6) is slidably sleeved with the first telescopic rod section (5).

[0007] The distribution cabinet temperature abnormality warning and adjustment device system is characterized in that the one-section rod connecting ring (7) is rotatably mounted with a one-section connecting rod (9), the one-section connecting rod (9) is rotatably connected to the mounting frame (10) and is located at the front end of the mounting frame (10), the two-section rod connecting ring (8) is rotatably mounted with two-section connecting rods (11), the two-section connecting rods (11) are fixedly connected to the mounting frame (10) and are located at the rear end of the mounting frame (10), the mounting frame (10) is fixedly mounted with an infrared imager (1), and the infrared imager (1) can rotate around the two-section rod connecting ring (8).

[0008] The distribution cabinet temperature abnormality warning and adjustment device system is characterized in that when the telescopic rod section 1 (5) moves outward horizontally, the telescopic rod section 2 (6) remains stationary, and the telescopic rod section 1 (5) drives the infrared imager (1) to rotate slightly via the telescopic rod section 1 (9).

[0009] The temperature abnormality warning and adjustment device system of the power distribution cabinet is characterized in that the base (3) is provided with a motor compartment (12), the motor compartment is fixedly equipped with a motor (13), the output shaft of the motor (13) is connected to the turntable (4) through a coupling, the motor (13) drives the turntable (4) to rotate through the output shaft and its reduction mechanism, and the top of the turntable (4) is provided with a mounting seat (14), and the mounting seat (14) is fixedly connected to the electric telescopic rod (2) through bolts (15).

[0010] The method for using the distribution cabinet temperature abnormality warning and adjustment device system is characterized by the following specific steps: S1: Control the infrared thermal imaging thermometer device to rotate around the power distribution cabinet. Each measurement needs to rotate three times to take thermal imaging photos of the upper, middle and lower areas of the side of the power distribution cabinet, respectively, to obtain temperature data of the upper, middle and lower areas, and then transmit the detection data to the data processing module; S2: After receiving the detection data, the data processing module inputs the obtained temperature data of the upper, middle and lower areas of the side into a preset algorithm formula, calculates the measured temperature value of the distribution cabinet, and transmits it to the control coordination module; S3: According to the room temperature, the temperature threshold of the power distribution cabinet is set. When the measured temperature value exceeds the temperature threshold by 5°C, the control and coordination module prompts that the temperature of the power distribution cabinet is too high and cooling measures need to be taken; when the measured temperature value exceeds the temperature threshold by 10°C, the control and coordination module prompts that the temperature of the power distribution cabinet is too high, the system alarms, and the power workers are required to go to the site to find out the cause and repair; S4: The data processing module stores the measured temperature value of the power distribution cabinet in the database and establishes a temperature measurement account; based on the consistency between the operation application of S3 and the actual situation of the power distribution cabinet, the temperature threshold of the power distribution cabinet is further corrected, and the parameters in the algorithm formula of S2 are corrected in one step; S5: The control and coordination module decides whether to activate the alarm mechanism based on the temperature value measured by the distribution cabinet, including starting the fan system in the distribution room to enhance air circulation, adjusting the air conditioner in the distribution room to the lowest temperature, activating the sound and light alarm device to emit a strong sound and light signal to attract attention, and sending an alarm text message to the on-duty personnel to clearly inform them of the current emergency situation and require them to deal with it immediately.

[0011] The method for using the distribution cabinet temperature abnormality warning and adjustment device system is characterized in that the algorithm formula is: ; in T Measure the temperature value for the power distribution cabinet, is the average temperature of the upper area on each side of the distribution cabinet, is the average value of the middle area on each side of the distribution cabinet, is the average temperature of the lower area of ​​each side of the distribution cabinet; a, b, and c are weight factors, the value range of a is 0.2 to 0.6, the value range of b is 0.4 to 6.0, and the value range of c is 0.1 to 0.2.

[0012] The method for using the abnormal temperature warning and adjustment device system for the power distribution cabinet is characterized in that the infrared thermal imaging thermometer device rotates around the power distribution cabinet, and each measurement is performed at an interval of 10-15 minutes before the next measurement.

[0013] The method for using the distribution cabinet temperature abnormality warning and adjustment device system is characterized in that each time the infrared thermal imaging thermometer device measures, the electric telescopic rod (2) is controlled to extend and retract to ensure that the distance between the infrared thermal imaging thermometer and the side of the distribution cabinet to be measured is 70-90 cm. When the infrared thermal imaging thermometer performs temperature measurement operations in the upper, middle and lower areas of the distribution cabinet, the angles between the infrared thermal imaging thermometer and the horizontal plane are set to 30-35 degrees, 40-45 degrees and 60-70 degrees respectively.

[0014] The beneficial effects of the present invention are: 1. The present invention can automatically perform temperature detection, data analysis, abnormality judgment and early warning operations, reducing dependence on manual labor and improving the intelligence level of the system.

[0015] 2. The present invention utilizes infrared imaging technology to accurately measure the temperature distribution on the surface of the power distribution cabinet in a non-contact manner, thereby promptly discovering potential overheating problems.

[0016] 3. The present invention automatically performs temperature detection every 15 minutes, ensuring continuous monitoring of the temperature of the power distribution cabinet and being able to detect and handle temperature anomalies in real time.

[0017] 4. When the present invention detects abnormal temperature, the device can immediately take a series of preventive measures, such as turning on the fan, activating the sound and light alarm, notifying the maintenance personnel via text messages, and adjusting the air conditioning temperature, etc., which significantly reduces the risk of accidents.

[0018] 5. The present invention stores the detected temperature data in a database, which is convenient for staff to conduct historical data query, trend analysis and subsequent maintenance work.

[0019] 6. In addition to the early warning function, the present invention can also adjust the ambient temperature around the power distribution cabinet as needed, adapt to different working conditions, and ensure that the power distribution cabinet operates within a suitable temperature range.

[0020] 7. The design of the infrared detector device of the present invention takes into account the diversity of working environments, and its electric telescopic rod and rotating mounting frame can adjust the position and angle of the infrared imager according to actual needs.

[0021] 8. The design of the device of the present invention takes into account the convenience of installation. At the same time, due to its high degree of automation, the daily maintenance workload is small, which reduces the operation and maintenance costs.

[0022] 9. The automated temperature monitoring and early warning system of the present invention greatly improves work efficiency, while also increasing the reliability of system operation and ensuring the stable operation of the power system.

[0023] 10. The temperature measurement data management module of the present invention provides a user-friendly operation interface, which facilitates the staff to easily manage and set system parameters and view warning information and temperature data. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the system structure of the abnormal temperature warning and adjustment device for the power distribution cabinet of the present invention; Figure 2 This is a flowchart of the method for using the abnormal temperature warning and adjustment device system for the power distribution cabinet of the present invention; Figure 3 It is a schematic diagram of an infrared thermal imaging thermometer device for a power distribution cabinet of the power distribution cabinet temperature abnormality early warning and adjustment device system of the present invention; Figure 4 It is a three-dimensional schematic diagram of an infrared thermal imaging thermometer device for a power distribution cabinet of the power distribution cabinet temperature abnormality early warning and adjustment device system of the present invention; Figure 5 It is a partial cross-sectional view of an infrared thermal imaging thermometer device for a power distribution cabinet of the power distribution cabinet temperature abnormality early warning and adjustment device system of the present invention.

[0025] In the figure: 1. Infrared imager; 2. Electric telescopic rod; 3. Base; 4. Turntable; 5. 1st section of telescopic rod; 6. 2nd section of telescopic rod; 7. 1st section rod connecting ring; 8. 2nd section rod connecting ring; 9. 1st section rod; 10. Mounting frame; 11. 2nd section rod; 12. Motor compartment; 13. Motor; 14. Mounting seat; 15. Bolts. DETAILED DESCRIPTION

[0026] The abnormal temperature warning and adjustment device system of the power distribution cabinet includes a power distribution room, a power distribution cabinet, a controller, an alarm unit, a detection unit, and a temperature measurement data management module.

[0027] The controller comprises a data processing module, a control coordination module and a database. The data processing module is respectively connected with the control coordination module and the database by signals, and the database is connected with the control coordination module by electrical signals.

[0028] The alarm unit includes an indoor air conditioner, a fan, a short message sending module, and an audible and visual alarm, which are electrically connected, and the fan, the indoor air conditioner, the short message sending module, the audible and visual alarm, and the fan are all connected to the control coordination module signal.

[0029] The detection unit includes a room temperature detector and an infrared thermal imaging thermometer device. Both the room temperature detector and the infrared thermal imaging thermometer device are connected to the data processing module signal. The room temperature detector detects the indoor temperature. The infrared thermal imaging thermometer device includes an infrared imager 1, an electric telescopic rod 2, and a base 3. The base 3 is installed at the center of the top of the power distribution cabinet. A turntable 4 is rotatably installed above the base 3. An electric telescopic rod 2 is fixedly installed above the turntable 4. The electric telescopic rod 2 includes a telescopic rod section 1 5 and a telescopic rod section 2 6. The telescopic rod section 1 5 and the telescopic rod section 2 6 are respectively fixedly installed with a 1-section rod connecting ring 7 and a 2-section rod connecting ring 8. The 1-section rod connecting ring 7 is rotatably installed with a 1-section connecting rod 9. The 1-section connecting rod 9 is rotatably connected to the mounting frame 10 and is located at the front end of the mounting frame 10. The 2-section rod connecting ring 8 is rotatably installed with a 2-section connecting rod 11. The 2-section connecting rod 11 is fixedly connected to the mounting frame 10 and is located at the rear end of the mounting frame 10. The mounting frame 10 is fixedly installed with an infrared imager 1, and the infrared imager 1 can rotate around the 2-section rod connecting ring 8. The telescopic rod 2 section 6 is slidably sleeved with the telescopic rod 1 section 5. When the telescopic rod 1 section 5 moves outward horizontally, the telescopic rod 2 section 6 remains stationary, and the telescopic rod 1 section 5 drives the infrared imager 1 to rotate slightly through the 1-section connecting rod 9. The base 3 is provided with a motor compartment 12, and the motor compartment is fixedly installed with a motor 13. The output shaft of the motor 13 is connected to the turntable 4 through a coupling. The motor 13 drives the turntable 4 to rotate through the output shaft and its reduction mechanism. The top of the turntable 4 is provided with a mounting seat 14, and the mounting seat 14 is fixedly connected to the electric telescopic rod 2 through a bolt 15.

[0030] The temperature measurement data management module is connected to the database through a high-speed network, and the temperature measurement data management module can view the temperature measurement records stored in the database.

[0031] The specific steps for using the abnormal temperature warning and adjustment device system of the power distribution cabinet are as follows: S1: Control the infrared thermal imaging thermometer device to rotate around the power distribution cabinet. The specific rotation range needs to be determined according to the actual situation of the power distribution cabinet on-site installation. Each measurement needs to be rotated three times, and the next measurement should be performed after an interval of 10-15 minutes. Take thermal imaging photos of the upper, middle and lower areas of each side of the power distribution cabinet to obtain the temperature data of the upper, middle and lower areas, and then transmit the detection data to the data processing module.

[0032] S2: After receiving the detection data, the data processing module inputs the temperature data of the upper, middle and lower areas of each side into a preset algorithm formula. The algorithm formula is: ; in T Measure the temperature value for the power distribution cabinet, is the average temperature of the upper area on each side of the distribution cabinet, is the average value of the middle area on each side of the distribution cabinet, is the average temperature of the lower area of ​​each side of the distribution cabinet; a, b, and c are weight factors, the value range of a is 0.2 to 0.6, the value range of b is 0.4 to 6.0, and the value range of c is 0.1 to 0.2.

[0033] After the measured temperature value of the distribution cabinet is calculated by the algorithm formula, the measured temperature value of the distribution cabinet is transmitted to the control coordination module.

[0034] S3: Compare the measured temperature value of the distribution cabinet with the temperature threshold of the distribution cabinet. When the measured temperature value exceeds the temperature threshold by 5°C, the control and coordination module prompts that the temperature of the distribution cabinet is too high and cooling measures need to be taken. When the measured temperature value exceeds the temperature threshold by 10°C, the control and coordination module prompts that the temperature of the distribution cabinet is too high, and the system alarms, requiring power workers to go to the site to find out the cause and repair it.

[0035] The temperature threshold of the power distribution cabinet is set based on the room temperature data measured by the room temperature measuring instrument, and the value range of the temperature threshold of the power distribution cabinet is 10°C to 20°C higher than the room temperature data.

[0036] S4: The data processing module stores the measured temperature value of the distribution cabinet into the database and establishes a temperature measurement ledger; based on the consistency between the S3 operation application and the actual situation of the distribution cabinet, the temperature threshold of the distribution cabinet is further corrected, and the parameters in the S2 algorithm formula are corrected in one step.

[0037] S5: The control and coordination module decides whether to activate the alarm mechanism based on the temperature value measured by the distribution cabinet, including starting the fan system in the distribution room to enhance air circulation, adjusting the air conditioner in the distribution room to the lowest temperature, activating the sound and light alarm device to emit a strong sound and light signal to attract attention, and sending an alarm text message to the on-duty personnel to clearly inform them of the current emergency situation and require them to deal with it immediately.

[0038] During specific use, the electric telescopic rod 2 is controlled to be extended and retracted to ensure that the distance between the infrared thermal imaging thermometer and the side of the power distribution cabinet to be measured is 70-90 cm.

[0039] When the infrared thermal imaging thermometer measures the temperature of the upper, middle and lower areas of the power distribution cabinet, the telescopic rod 1 section 5 moves outward horizontally while the telescopic rod 2 section 6 remains stationary. The telescopic rod 1 section 5 drives the infrared imager 1 to rotate through the 1st section connecting rod 9, thereby completing the specific angle requirement of the infrared thermal imaging thermometer and the horizontal plane. The angles of the infrared thermal imaging thermometer and the horizontal plane are set to 30-35 degrees, 40-45 degrees, and 60-70 degrees respectively.

Claims

1. A temperature abnormality warning and adjustment device system for a power distribution cabinet, including a power distribution room, a power distribution cabinet, and a controller, characterized in that: It includes an alarm unit, a detection unit, and a temperature measurement data management module; The controller includes a data processing module, a control coordination module, and a database. The data processing module is respectively connected to the control coordination module and the database by signal, and the database is connected to the control coordination module by electrical signal; The alarm unit includes an indoor air conditioner, a short message sending module, an audible and visual alarm, and a fan, and the indoor air conditioner, the short message sending module, the audible and visual alarm, and the fan are all connected to the control and coordination module by signal; The detection unit includes a room temperature detector and an infrared thermal imaging thermometer device, both of which are connected to the data processing module signal; the infrared thermal imaging thermometer device is fixedly installed on the top of the power distribution cabinet; The temperature measurement data management module is connected to the database through a high-speed network, and the temperature measurement data management module can view the temperature measurement records stored in the database.

2. The temperature abnormality warning and adjustment device system of the power distribution cabinet according to claim 1 is characterized in that The room temperature detector is installed indoors, and detects the indoor temperature.

3. The distribution cabinet temperature abnormality warning and adjustment device system according to claim 1 is characterized in that: The infrared thermal imaging thermometer device comprises an infrared imager (1), an electric telescopic rod (2), and a base (3). The base (3) is mounted on the top of a power distribution cabinet. A turntable (4) is rotatably mounted above the base (3). The electric telescopic rod (2) is mounted above the turntable (4). The electric telescopic rod (2) comprises a first telescopic rod section (5) and a second telescopic rod section (6). The first telescopic rod section (5) and the second telescopic rod section (6) are respectively fixedly mounted with a first-section rod connecting ring (7) and a second-section rod connecting ring (8). The second telescopic rod section (6) is slidably sleeved with the first telescopic rod section (5).

4. The distribution cabinet temperature abnormality warning and adjustment device system according to claim 3 is characterized in that: The one-section rod connecting ring (7) is rotatably mounted with a one-section connecting rod (9), the one-section connecting rod (9) is rotatably connected to the mounting frame (10) and is located at the front end of the mounting frame (10), the two-section rod connecting ring (8) is rotatably mounted with a two-section connecting rod (11), the two-section connecting rod (11) is fixedly connected to the mounting frame (10) and is located at the rear end of the mounting frame (10), the mounting frame (10) is fixedly mounted with an infrared imager (1), and the infrared imager (1) can rotate around the two-section rod connecting ring (8).

5. According to claim 4, the temperature abnormality warning and adjustment device system of the power distribution cabinet is characterized in that: When the telescopic rod section 1 (5) moves outward horizontally, the telescopic rod section 2 (6) remains stationary, and the telescopic rod section 1 (5) drives the infrared imager (1) to rotate slightly via the connecting rod section 1 (9).

6. The distribution cabinet temperature abnormality warning and adjustment device system according to claim 3 is characterized in that: The base (3) is provided with a motor compartment (12), and a motor (13) is fixedly installed in the motor compartment. The output shaft of the motor (13) is connected to the turntable (4) via a coupling. The motor (13) drives the turntable (4) to rotate via the output shaft and its reduction mechanism. A mounting seat (14) is provided on the top of the turntable (4), and the mounting seat (14) is fixedly connected to the electric telescopic rod (2) via bolts (15).

7. The method for using the distribution cabinet temperature abnormality warning and adjustment device system according to any one of claims 1 to 6 is characterized in that: The specific steps are as follows: S1: Control the infrared thermal imaging thermometer device to rotate around the power distribution cabinet. Each measurement needs to be rotated three times to take thermal imaging photos of the upper, middle and lower areas of the side of the power distribution cabinet, respectively, to obtain temperature data of the upper, middle and lower areas, and then transmit the detection data to the data processing module; S2: After receiving the detection data, the data processing module inputs the obtained temperature data of the upper, middle and lower areas of the side into a preset algorithm formula, calculates the measured temperature value of the distribution cabinet, and transmits it to the control coordination module; S3: According to the room temperature, the temperature threshold of the power distribution cabinet is set. When the measured temperature value exceeds the temperature threshold by 5°C, the control and coordination module prompts that the temperature of the power distribution cabinet is too high and cooling measures need to be taken; when the measured temperature value exceeds the temperature threshold by 10°C, the control and coordination module prompts that the temperature of the power distribution cabinet is too high, the system alarms, and the power workers are required to go to the site to find out the cause and repair; S4: The data processing module stores the measured temperature value of the power distribution cabinet in the database and establishes a temperature measurement account; based on the consistency between the operation application of S3 and the actual situation of the power distribution cabinet, the temperature threshold of the power distribution cabinet is further corrected, and the parameters in the algorithm formula of S2 are corrected in one step; S5: The control and coordination module decides whether to activate the alarm mechanism based on the temperature value measured by the distribution cabinet, including starting the fan system in the distribution room to enhance air circulation, adjusting the air conditioner in the distribution room to the lowest temperature, activating the sound and light alarm device to emit a strong sound and light signal to attract attention, and sending an alarm text message to the on-duty personnel to clearly inform them of the current emergency situation and require them to deal with it immediately.

8. The method for using the distribution cabinet temperature abnormality warning and adjustment device system according to claim 7 is characterized in that: The algorithm formula is: ； in T Measure the temperature value for the power distribution cabinet, is the average temperature of the upper area on each side of the distribution cabinet, is the average value of the middle area on each side of the distribution cabinet, is the average temperature of the lower area of ​​each side of the distribution cabinet; a, b, and c are weight factors, the value range of a is 0.2 to 0.6, the value range of b is 0.4 to 6.0, and the value range of c is 0.1 to 0.

2.

9. The method for using the distribution cabinet temperature abnormality warning and adjustment device system according to claim 7 is characterized in that: The infrared thermal imaging thermometer device rotates around the power distribution cabinet, and each measurement is performed with an interval of 10-15 minutes before the next measurement.

10. The method for using the distribution cabinet temperature abnormality warning and adjustment device system according to claim 7 is characterized in that: Each time the infrared thermal imaging thermometer device performs measurement, the electric telescopic rod (2) is controlled to be extended or retracted to ensure that the distance between the infrared thermal imaging thermometer and the side of the distribution cabinet to be measured is 70-90 cm. When the infrared thermal imaging thermometer performs temperature measurement operations in the upper, middle and lower areas of the distribution cabinet, the angles between the infrared thermal imaging thermometer and the horizontal plane are set to 30-35 degrees, 40-45 degrees and 60-70 degrees respectively.

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