A high-voltage cable insulation shrinkage rate detection device and system

Abstract

The present invention discloses a device and system for detecting the insulation shrinkage rate of a high-voltage cable, and relates to the technical field of measuring devices. The detection device comprises a controller and a detection unit for obtaining a cross-sectional position on a cable. The detection unit comprises an adjustment bracket, a caliper arranged on the adjustment bracket, and a displacement sensor arranged on the caliper. The caliper is connected to the adjustment bracket, the displacement sensor is connected to the caliper, and the displacement sensor is connected to and communicates with the controller. There are two detection units, a first detection unit for obtaining a cross-sectional position of an insulating layer on a cable, a second detection unit for obtaining a cross-sectional position of a conductor on a cable, and a controller for obtaining data on the cross-sectional position of the insulating layer and the conductor on the cable sent by the detection unit, and calculating and obtaining the shrinkage rate. The detection system comprises the above-mentioned detection device and a computer. The detection system obtains the positions of the cross-sectional positions of the insulating layer and the conductor through two adjustment brackets and two displacement sensors, thereby measuring the insulation shrinkage rate of the cable.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring devices, and in particular to a high-voltage cable insulation shrinkage rate detection device and system. Background Art

[0002] The author searched with the search formula TACD_ALL:((detection OR measurement) AND cable AND insulation AND shrinkage AND rack AND displacement sensor), and obtained the following relatively close existing technical solutions.

[0003] The authorization announcement number is CN211425383U, and its name is a coaxial cable connector protrusion and subsidence detection device. It includes: a connector clamping assembly and a displacement sensor drive assembly; the connector clamping assembly includes a pneumatic clamping jaw, and the pneumatic clamping jaw is fixed with two oppositely arranged clips, and the two clips are provided with a wire clamping groove; the displacement sensor drive assembly includes a displacement sensor, a fixing part and a linear drive part, the displacement sensor is fixed on the fixing part, and the driving end of the linear drive part is connected to the fixing part, driving the fixing part toward or away from the center of the two wire clamping grooves. The connector of the coaxial cable is clamped by the connector clamping assembly, and the displacement sensor is driven by the linear drive part to align the probe of the displacement sensor with the coaxial cable connector, thereby measuring the depth of the central copper wire inside the coaxial cable connector, overcoming the problem of low efficiency of manual measurement and improving the reliability of measurement.

[0004] The authorization announcement number is CN213090676U, and it is titled "A magnetostrictive displacement sensor." The magnetostrictive displacement sensor includes a sliding magnet, a slider magnet fixture, a sensitive element assembly for sensing changes in the sliding magnet's magnetic force, a removable fixing card, an aviation plug, a circuit board mounting base, a sealing gasket, a cylindrical housing, an end cap, and a control circuit board. The magnetostrictive displacement sensor is compact and suitable for measurements in confined spaces and volumetric environments. It can more effectively block and avoid external signal interference, and has high measurement accuracy.

[0005] Combining the above two patent documents and existing technical solutions, the inventors make the following analysis.

[0006] During the operation of high-voltage cable circuits, the quality of cable terminal joints is a key factor affecting power supply safety. Currently, power supply companies often heat and straighten the cable joints during high-voltage cable installation to effectively remove internal stress. During this heating and straightening process, the insulation layer of the high-voltage cable undergoes a certain amount of axial shrinkage after cooling. The shrinkage rate of the high-voltage cable insulation is also a key factor in measuring high-voltage cable quality. Excessive shrinkage will directly affect the installation quality of the cable joints and the safety and reliability of power operation.

[0007] During the heating and straightening phase of high-voltage cables, real-time testing of the axial shrinkage of the cable insulation layer can be used to assess the safety performance of the high-voltage cables, thereby ensuring the installation quality and operational safety of the cable joints. Conventional testing methods involve continuous measurement of the cable insulation during heating and natural cooling. This requires constant observation of the heating and straightening equipment, making operation extremely inconvenient. Furthermore, uncertainties in equipment operation are difficult to manage, leading to measurement errors.

[0008] Existing technical problems and considerations:

[0009] How to solve the technical problem of measuring cable insulation shrinkage rate. Summary of the Invention

[0010] The technical problem to be solved by the present invention is to provide a high-voltage cable insulation shrinkage rate detection device and system to solve the technical problem of measuring the cable insulation shrinkage rate.

[0011] In order to solve the above technical problems, the technical solution adopted by the present invention is: a high-voltage cable insulation shrinkage rate detection device includes a controller and a detection unit for obtaining the cross-sectional position on the cable, the detection unit includes an adjustment bracket, a caliper arranged on the adjustment bracket and a displacement sensor arranged on the caliper, the caliper is connected to the adjustment bracket, the displacement sensor is connected to the caliper, the displacement sensor is connected to and communicates with the controller, there are two detection units, namely a first detection unit and a second detection unit with the same structure, the first detection unit is used to obtain the cross-sectional position of the insulation layer on the cable, the second detection unit is used to obtain the cross-sectional position of the conductor on the cable, and the controller is used to obtain data on the cross-sectional position of the insulation layer and the conductor cross-sectional position on the cable sent by the detection unit, calculate and obtain the shrinkage rate.

[0012] A further technical solution is that the first detection unit includes a first adjustment bracket, a first caliper and a first displacement sensor, the first caliper is connected to the first adjustment bracket, and the first displacement sensor is connected to the first caliper.

[0013] A further technical solution is that: the displacement sensor is a displacement sensor whose core is a capacitive grating sensor.

[0014] A further technical solution is: it also includes a base, and the adjustment bracket is connected to the base.

[0015] A further technical solution is that: it also includes a display, and the controller is electrically connected to the display to form a reading table.

[0016] A further technical solution is that the first adjustment bracket is movably connected to the second adjustment bracket.

[0017] A further technical solution is that: the base is a magnetic base.

[0018] A further technical solution is to adjust the movable connection between the bracket and the base.

[0019] A further technical solution is that: the display is a touch screen.

[0020] A high-voltage cable insulation shrinkage rate detection system includes the above-mentioned detection device and a computer. The computer is connected to and communicates with a controller in the detection device. The computer is used to obtain information sent by the detection device and form a detection system.

[0021] The beneficial effects of adopting the above technical solution are:

[0022] First, a high-voltage cable insulation shrinkage rate detection device includes a controller and a detection unit for obtaining the cross-sectional position of the cable. The detection unit includes an adjustment bracket, a caliper mounted on the adjustment bracket, and a displacement sensor mounted on the caliper. The caliper is connected to the adjustment bracket, the displacement sensor is connected to the caliper, and the displacement sensor is connected to and communicates with the controller. There are two detection units, a first detection unit and a second detection unit, each with identical structures. The first detection unit is used to obtain the cross-sectional position of the cable insulation layer, and the second detection unit is used to obtain the cross-sectional position of the cable conductor. The controller is used to obtain the data on the cross-sectional position of the cable insulation layer and the conductor from the detection units, calculate, and obtain the shrinkage rate. This technical solution uses two adjustment brackets and two displacement sensors to obtain the cross-sectional positions of the insulation layer and the conductor, thereby measuring the cable insulation shrinkage rate.

[0023] Second, a high-voltage cable insulation shrinkage rate detection system includes the aforementioned detection device and a computer. The computer is connected and communicates with the controller in the detection device. The computer is used to obtain information from the detection device and form a detection system. This technical solution uses two adjustment brackets and two displacement sensors to obtain the position of the insulation layer cross section and the conductor cross section, thereby measuring the cable insulation shrinkage rate. The computer facilitates further data management and use.

[0024] Please refer to the detailed description of the specific implementation method. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural diagram of embodiment 1 of the present invention;

[0026] Figure 2 yes Figure 1 Structural diagram of the middle adjustment bracket;

[0027] Figure 3 This is a principle block diagram of embodiment 1 of the present invention;

[0028] Figure 4 This is a state diagram of the application of Example 1 of the present invention.

[0029] in:

[0030] 1 magnetic table base;

[0031] 2 first displacement sensor;

[0032] 3. Second displacement sensor;

[0033] 4 first data line;

[0034] 5 reading table;

[0035] 6 second data line;

[0036] 7. First adjustment bracket;

[0037] 7-1 support column;

[0038] 7-2 first locking screw;

[0039] 7-3 caliper seat;

[0040] 7-4 second locking screw;

[0041] 7-5 through hole;

[0042] 8 first caliper;

[0043] 9 second caliper;

[0044] 10 second adjustment bracket;

[0045] A high voltage cable insulation layer;

[0046] B High voltage cable conductor. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0049] Example 1:

[0050] like Figures 1 to 4 As shown, the present invention discloses a high-voltage cable insulation shrinkage rate detection device including a base, a display, a controller and a detection unit for obtaining the cross-sectional position of the cable. The detection unit includes an adjustment bracket, a caliper installed on the adjustment bracket and a displacement sensor installed on the caliper.

[0051] The displacement sensor is a displacement sensor whose core is a capacitive grating sensor.

[0052] like Figure 1 As shown, the base is a magnetic meter base 1.

[0053] like Figure 1 As shown, there are two detection units, namely a first detection unit and a second detection unit with identical structures.

[0054] like Figure 1 As shown, the first detection unit includes a first adjustment bracket 7 , a first caliper 8 and a first displacement sensor 2 . The first caliper 8 is fixedly connected to the first adjustment bracket 7 , and the first displacement sensor 2 is fixedly connected to the first caliper 8 .

[0055] like Figure 1 As shown, the second detection unit includes a second adjustment bracket 10 , a second caliper 9 and a second displacement sensor 3 . The second caliper 9 is fixedly connected to the second adjustment bracket 10 , and the second displacement sensor 3 is fixedly connected to the second caliper 9 .

[0056] like Figure 1 As shown, the second adjustment bracket 10 is plugged and fixed to the magnetic meter base 1, and the first adjustment bracket 7 is plugged and fixed to the second adjustment bracket 10 and the positions thereof can be adjusted.

[0057] like Figure 2 As shown, the first adjustment bracket 7 includes a support column 7-1, a first locking screw 7-2, a caliper seat 7-3, a second locking screw 7-4 and a through hole 7-5. The support column 7-1 is plugged into the caliper seat 7-3 and fixedly connected together by the first locking screw 7-2. A through hole 7-5 is provided on the caliper seat 7-3, which is used to insert the caliper's connecting part into the through hole 7-5 and fix them together through the second locking screw 7-4.

[0058] like Figure 3 As shown, the display is an LCD touch screen.

[0059] like Figure 3 As shown, the first displacement sensor is electrically connected to and communicates with the controller, the second displacement sensor is electrically connected to and communicates with the controller, and the controller is electrically connected to the touch screen to form a reading table.

[0060] like Figure 4As shown, the two adjustment brackets are brackets that can adjust their positions respectively, and are used to adjust the positions of the test needles of their respective displacement sensors, so that the test needle of the first displacement sensor 2 can overlap with the cross-section A of the insulation layer on the cable, and the test needle of the second displacement sensor 3 can overlap with the cross-section B of the conductor on the cable.

[0061] The first detection unit is used to obtain the cross-sectional position of the insulation layer on the cable.

[0062] The second detection unit is used to obtain the cross-sectional position of the conductor on the cable.

[0063] The controller is used to obtain data on the cross-sectional position of the insulation layer and the conductor on the cable sent by the detection unit, and calculate and obtain the shrinkage rate.

[0064] Among them, the controller, displacement sensor, display, battery itself and corresponding communication connection technology are existing technologies. The formula and method for calculating and obtaining the shrinkage rate based on the data of the cross-sectional position of the insulation layer and the cross-sectional position of the conductor on the cable are existing technologies and will not be repeated here.

[0065] Example 2:

[0066] Embodiment 2 differs from Embodiment 1 in that the displacement sensor is a magnetostrictive displacement sensor.

[0067] The invention discloses a high-voltage cable insulation shrinkage rate detection device comprising a base, a display, a controller and a detection unit for obtaining the cross-sectional position of the cable. The detection unit comprises an adjustment bracket, a caliper mounted on the adjustment bracket and a displacement sensor mounted on the caliper.

[0068] The displacement sensor is a magnetostrictive displacement sensor.

[0069] The base is a magnetic base.

[0070] There are two detection units, namely a first detection unit and a second detection unit with identical structures.

[0071] The first detection unit includes a first adjustment bracket, a first caliper and a first displacement sensor. The first caliper is fixedly connected to the first adjustment bracket, and the first displacement sensor is fixedly connected to the first caliper.

[0072] The second detection unit includes a second adjustment bracket, a second caliper, and a second displacement sensor. The second caliper is fixedly connected to the second adjustment bracket, and the second displacement sensor is fixedly connected to the second caliper. The second adjustment bracket is plugged and fixed to the magnetic base. The first adjustment bracket and the second adjustment bracket are plugged together and can be adjusted.

[0073] The first adjustment bracket includes a support column, a first locking screw, a caliper seat, a second locking screw and a through hole. The support column is plugged into the caliper seat and fixedly connected together by the first locking screw. The caliper seat is provided with a through hole for inserting the connecting part of the caliper into the through hole and fixing them together by the second locking screw.

[0074] The display is a touch screen.

[0075] The first displacement sensor is electrically connected to and communicates with the controller, the second displacement sensor is electrically connected to and communicates with the controller, and the controller is electrically connected to the touch screen to form a reading table.

[0076] The two adjustment brackets are brackets that can adjust their positions respectively, and are used to adjust the positions of the test needles of their respective displacement sensors so that the test needle of the first displacement sensor can overlap with the cross-section of the insulation layer on the cable, and the test needle of the second displacement sensor can overlap with the cross-section of the conductor on the cable.

[0077] The first detection unit is used to obtain the cross-sectional position of the insulation layer on the cable.

[0078] The second detection unit is used to obtain the cross-sectional position of the conductor on the cable.

[0079] The controller is used to obtain data on the cross-sectional position of the insulation layer and the conductor on the cable sent by the detection unit, and calculate and obtain the shrinkage rate.

[0080] Example 3:

[0081] The present invention discloses a high-voltage cable insulation shrinkage rate detection system comprising the detection device of Example 1 and a computer. The computer is wirelessly connected and communicates with a controller in the detection device via a communication device. The computer is used to obtain information sent by the detection device and form a detection system to facilitate data management and use.

[0082] The base is a magnetic base.

[0083] There are two detection units, namely a first detection unit and a second detection unit with identical structures.

[0084] The first detection unit includes a first adjustment bracket, a first caliper and a first displacement sensor. The first caliper is fixedly connected to the first adjustment bracket, and the first displacement sensor is fixedly connected to the first caliper.

[0085] The second detection unit includes a second adjustment bracket, a second caliper and a second displacement sensor. The second caliper is fixedly connected to the second adjustment bracket, and the second displacement sensor is fixedly connected to the second caliper.

[0086] The second adjustment bracket is plugged and fixed to the magnetic meter base, and the first adjustment bracket and the second adjustment bracket are plugged together and can adjust their positions.

[0087] The first adjustment bracket includes a support column, a first locking screw, a caliper seat, a second locking screw and a through hole. The support column is plugged into the caliper seat and fixedly connected together by the first locking screw. The caliper seat is provided with a through hole for inserting the connecting part of the caliper into the through hole and fixing them together by the second locking screw.

[0088] The display is a touch screen.

[0089] The first displacement sensor is electrically connected to and communicates with the controller, the second displacement sensor is electrically connected to and communicates with the controller, and the controller is electrically connected to the touch screen to form a reading table.

[0090] The two adjustment brackets are brackets that can adjust their positions respectively, and are used to adjust the positions of the test needles of their respective displacement sensors so that the test needle of the first displacement sensor can overlap with the cross-section of the insulation layer on the cable, and the test needle of the second displacement sensor can overlap with the cross-section of the conductor on the cable.

[0091] The first detection unit is used to obtain the cross-sectional position of the insulation layer on the cable.

[0092] The second detection unit is used to obtain the cross-sectional position of the conductor on the cable.

[0093] The controller is used to obtain data on the cross-sectional position of the insulation layer and the conductor on the cable sent by the detection unit, and calculate and obtain the shrinkage rate.

[0094] The concept of this application:

[0095] A device for testing the shrinkage rate of an insulation layer of a high-voltage cable comprises a magnetic meter base, an adjustment bracket, a caliper, a displacement sensor, a data line, and a reading meter.

[0096] The two displacement sensors fixed on the magnetic meter base are pressed against the conductor cross-section and insulation cross-section of the high-voltage cable respectively by adjusting the position of the adjustment bracket and the reversing caliper. The reading meter receives the displacement change values ​​of the two displacement sensors through the data line during the heating and straightening process of the high-voltage cable, and calculates the shrinkage rate of the high-voltage cable insulation layer based on the difference between the two and the length of the heated and straightened cable.

[0097] Technical solution:

[0098] 1. A high-voltage cable insulation layer shrinkage rate testing device, including a magnetic meter stand, an adjustment bracket, a caliper, a displacement sensor, a data line, and a reading meter.

[0099] 2. The magnetic meter stand includes a magnetic base and a support. The magnetic base is adsorbed to the metal surface, and an adjustment bracket is mounted on the support. The adjustment bracket can move up and down and can rotate around the support.

[0100] 3. The adjustment bracket includes a support column, a locking screw, a caliper seat, and a through hole; the support column is fixed to the caliper seat with a locking screw, and the through hole on the caliper seat can be connected to another adjustment bracket and fixed in position with a locking screw; the support column is fitted with the caliper, and the caliper can move and rotate along the support column.

[0101] 4. The displacement sensor uses a capacitive sensor as its core. The test needle can move linearly along the center hole with the help of an internal spring. It is externally powered and outputs a serial pulse signal, which can be converted into displacement data through a synchronous clock signal. The displacement sensor is connected to a reading meter via a data line.

[0102] 5. The reading meter includes a touch LCD screen, an I / O digital interface, an I2C serial interface, a controller, and a 3.7V lithium battery; the controller is connected to the touch LCD screen via the I / O digital interface to realize operation and display functions; the controller is connected to the data line of the displacement sensor via the I2C serial interface to read the displacement data; the 3.7V lithium battery supplies power to the controller and displacement sensor through the power line.

[0103] Technical solution description:

[0104] like Figure 1 、 Figure 2 As shown, a high-voltage cable insulation layer shrinkage rate testing device includes a magnetic meter base 1, a first displacement sensor 2, a second displacement sensor 3, a first data line 4, a reading meter 5, a second data line 6, a first adjustment bracket 7, a first caliper 8, a second caliper 9, and a second adjustment bracket 10.

[0105] The second adjustment bracket 10 is fixed on the magnetic meter base 1, and the first adjustment bracket 7 is fixed on the second adjustment bracket 10; the first caliper 8 and the second caliper 9 are mounted on the first adjustment bracket 7, the first displacement sensor 2 is fixed on the first caliper 8, and the second displacement sensor 3 is installed on the second caliper 9; the first displacement sensor 2 and the second displacement sensor 3 are connected to the reading meter 5 through the second data line 6 and the first data line 4 respectively.

[0106] like Figure 2 As shown, the first adjustment bracket 7 includes: a support column 7-1, a first locking screw 7-2, a caliper seat 7-3, a second locking screw 7-4, and a through hole 7-5.

[0107] like Figure 3 As shown, the reading meter 5 is powered by a 3.7V lithium battery and is connected to the first displacement sensor 2 and the second displacement sensor 3 through the second data line 6 and the first data line 4; the reading meter 5 receives data through the data line and is operated and displayed through the touch LCD screen.

[0108] Directions:

[0109] Assembly before testing:

[0110] First, measure the length of the insulation layer of the heated and straightened high-voltage cable; place the magnetic meter stand 1, set the second adjustment bracket 10 on the pillar of the magnetic meter stand 1, and then install the first adjustment bracket 7 on the support column of the second adjustment bracket 10, and set the first caliper 8 and the second caliper 9 on the support column of the first adjustment bracket 7, and then install the first displacement sensor 2 and the second displacement sensor 3 in the horizontal through holes of the first caliper 8 and the second caliper 9, respectively.

[0111] position:

[0112] like Figure 4 As shown, the magnetic meter stand 1 is adsorbed onto the horizontal plane on the same side as the measuring end of the high-voltage cable. The positions of the first adjustment bracket 7 and the second adjustment bracket 10 are adjusted, and then the positions of the first caliper 8 and the second caliper 9 are adjusted so that the test pin of the second displacement sensor 3 and the center of the cross-section B of the high-voltage cable conductor are at the same height, and the test pin of the first displacement sensor 2 and the center of the cross-section A of the high-voltage cable insulation layer are at the same height. The magnetic meter stand 1 is moved so that the test pins of the first displacement sensor 2 and the second displacement sensor 3 are closely attached to the test cross-section, and a certain amount of expansion and contraction is retained in the test pins.

[0113] Test readings:

[0114] Connect the reading meter 5, manually enter the insulation length value of the heated and straightened cable section, and start the test.

[0115] Data processing:

[0116] After the heat straightening is completed, stop the test and record the peak shrinkage rate. If necessary, you can export all dynamic measurement data during the heat straightening process.

[0117] After this application has been running internally for a period of time, on-site technicians have reported that it is beneficial in the following ways:

[0118] 1. Effectively control the cable quality by measuring the shrinkage rate of the high-voltage cable insulation layer.

[0119] 2. Control the installation process quality of cable joints according to the insulation layer shrinkage rate to improve the operation reliability and service life of the cable.

[0120] 3. Digital display of retraction rate, intuitive and convenient.

[0121] 4. Simultaneously measure the changes in the cable conductor and insulation layer to avoid measurement errors caused by the overall expansion and contraction of the cable during the heating and straightening process.

[0122] At present, the technical solution of the present invention has been put into pilot production, that is, a smaller-scale test of the product before large-scale mass production; after the pilot production was completed, a user usage survey was carried out on a small scale, and the survey results showed that user satisfaction was high; now preparations have begun for the formal production and industrialization of the product (including intellectual property risk warning surveys).

Claims

1. A high-voltage cable insulation shrinkage rate detection device, characterized in that: It includes a controller and a detection unit for obtaining the cross-sectional position of the cable. The detection unit includes an adjustment bracket, a caliper arranged on the adjustment bracket and a displacement sensor arranged on the caliper. The caliper is connected to the adjustment bracket, the displacement sensor is connected to the caliper, and the displacement sensor is connected to and communicates with the controller. There are two detection units, namely a first detection unit and a second detection unit with the same structure. The first detection unit is used to obtain the cross-sectional position of the insulation layer on the cable, and the second detection unit is used to obtain the cross-sectional position of the conductor on the cable. The controller is used to obtain data on the cross-sectional position of the insulation layer and the conductor on the cable sent by the detection unit, and calculate and obtain the shrinkage rate.

2. A high-voltage cable insulation shrinkage rate detection device according to claim 1, characterized in that: The first detection unit includes a first adjustment bracket, a first caliper and a first displacement sensor. The first caliper is connected to the first adjustment bracket, and the first displacement sensor is connected to the first caliper.

3. The high-voltage cable insulation shrinkage rate detection device according to claim 1, characterized in that: The displacement sensor is a displacement sensor whose core is a capacitive grating sensor.

4. The high-voltage cable insulation shrinkage rate detection device according to claim 1, characterized in that: The utility model also comprises a base, and the adjustment bracket is connected with the base.

5. The high-voltage cable insulation shrinkage rate detection device according to claim 1, characterized in that: The device also includes a display, and the controller is electrically connected to the display to form a reading table.

6. The high-voltage cable insulation shrinkage rate detection device according to claim 2, characterized in that: The first adjustment bracket is movably connected to the second adjustment bracket.

7. The high-voltage cable insulation shrinkage rate detection device according to claim 4, characterized in that: The base is a magnetic base.

8. The high-voltage cable insulation shrinkage rate detection device according to claim 4, characterized in that: Adjust the bracket and the base to make it movable.

9. The high-voltage cable insulation shrinkage rate detection device according to claim 5, characterized in that: The display is a touch screen.

10. A high-voltage cable insulation shrinkage rate detection system, characterized by: The detection device according to any one of claims 1 to 9 further comprises a computer, wherein the computer is connected to and communicates with a controller in the detection device, and the computer is used to obtain information sent by the detection device and form a detection system.

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