Power distribution automation terminal detection device and method

Abstract

The invention discloses a power distribution automation terminal detection device and method, and relates to the technical field of power distribution automation terminal detection, the power distribution automation terminal detection device comprises a tester, a terminal device and an isolation cover, the terminal device is fixedly provided with a plurality of interfaces, and the isolation cover is provided with a pressing assembly; the method further comprises the following steps that S1, a detector firstly clamps and installs the isolation cover on the terminal equipment, a servo motor I is started, at the moment, alignment of the aviation plug and the corresponding interface is achieved through cooperation of the servo motor I and a rotating disc, and the accuracy of subsequent insertion connection of the aviation plug and the corresponding interface is ensured. The device has the advantages that the required aviation plug can be automatically and accurately inserted into or pulled out of the corresponding interface according to the electrical performance detection content required by the terminal equipment, so that the convenience, the accuracy and the pulling and plugging efficiency of the device for pulling and plugging the aviation plug can be improved, and the detection efficiency of a tester on the terminal equipment can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution automation terminal detection, and in particular to a power distribution automation terminal detection device and method. Background Art

[0002] Distribution automation terminals can be broadly divided into feeder terminal units (FTUs), distribution transformer terminal units (TTUs), switchgear terminal units (DTUs), station terminal units (STUs), and fault indicators. Beidou distribution feeder terminal units leverage Beidou's precise timing and positioning capabilities to effectively improve data synchronization accuracy and equipment management efficiency, enhancing the stability of distribution network operations. Furthermore, they offer real-time monitoring of electrical parameters such as feeder voltage and current, leading to their gradual application in overhead and cable lines within distribution networks. In order to improve the stability of the distribution feeder terminal equipment during operation and to assist the intelligent operation of the distribution network, the electrical performance of the terminal equipment is usually tested before and after it is put into use. In order to improve the accuracy of the electrical performance test results of the terminal equipment, the current electrical performance test equipment usually uses an aviation plug to electrically connect with the interface on the terminal equipment. However, when testing the electrical performance of the terminal equipment, it is usually necessary for the tester to frequently plug and unplug the aviation plug according to the different functional tests, which increases the tediousness of the tester's work. In addition, the process of manually plugging and unplugging the aviation plug is easily affected by human factors, which reduces the stability and accuracy of the connection between the aviation plug and the terminal interface. To this end, we propose a distribution automation terminal detection device and method to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems raised in the background technology and to propose a distribution automation terminal detection device and method.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A power distribution automation terminal detection device includes a tester, a terminal device, and an isolation cover, wherein a plurality of interfaces are fixedly mounted on the terminal device, and a pressing component is provided on the isolation cover; The pressing assembly includes a servo motor 1 fixedly mounted on the isolation cover, a rotating shaft fixedly mounted on the driving end of the servo motor 1, a turntable mounted on the rotating shaft via a first one-way bearing, a plurality of aviation plugs passing through and slidably mounted on the turntable, a tail nut being threadedly mounted on each of the aviation plugs, and a lifting mechanism mounted on the rotating shaft; An adjustment component is provided at the lower end of the rotating shaft for independently lifting and lowering multiple aviation plugs according to detection requirements. A driving component is provided between the aviation plugs for driving the automatic tightening and release of the tail nut.

[0005] A method for using a distribution automation terminal detection device, using the distribution automation terminal detection device described above, comprises the following steps: S1: The inspector must first snap the isolation cover onto the terminal device and start servo motor 1. At this point, the servo motor 1 and the turntable work together to align the aviation plug with the corresponding interface, ensuring the accuracy of subsequent insertion of the aviation plug into the corresponding interface. S2: According to the detection requirements, if all aviation plugs need to be inserted into the corresponding interfaces, by using the cooperation of servo motor 1 and reciprocating screw 1, multiple voyage plugs can be inserted into and pulled out of the corresponding interfaces simultaneously, thereby improving the efficiency and convenience of terminal equipment detection; S3: If, according to the detection requirements, some aviation plugs need to be selectively inserted into the corresponding interfaces, the corresponding aviation plugs can be selectively inserted into the corresponding interfaces by utilizing the cooperation between the operation of the servo motor 2 and the adjustment component, thereby helping to improve the adaptability of the device to the detection requirements of the terminal equipment; S4: After all required aviation plugs are fully inserted into the corresponding interfaces, the driving assembly can drive multiple tail nuts to automatically rotate downward, further locking the corresponding aviation plugs and interfaces. This can help to further improve the stability of the device during the terminal equipment detection process and the accuracy of the detection results.

[0006] Compared with the existing technology, the advantages of the present invention are: 1: Before the aviation plug is plugged into the corresponding interface, the present invention can automatically and accurately align the aviation plug with the corresponding interface through the cooperation of the pressing component and the turntable, which can help ensure the accuracy of the subsequent connection between the aviation plug and the corresponding interface. Then, through the cooperation of the pressing component and the driving component, multiple aviation plugs can be inserted into or unplugged from the corresponding interfaces synchronously or sequentially according to the content of the electrical performance test required by the terminal equipment. This not only helps to improve the convenience, accuracy and plug-in efficiency of the device for plugging and unplugging aviation plugs, but also helps to improve the efficiency of the tester in testing terminal equipment.

[0007] 2: After the present invention automatically inserts the required aviation plug into the corresponding interface, the tail thread can be driven to rotate through the driving component to re-lock the corresponding aviation nut and interface, thereby helping to further improve the stability of the connection between the aviation plug and the corresponding interface, helping to further improve the accuracy of the tester's electrical performance test results for the terminal equipment, and also helping to further improve the convenience of the device in connecting the aviation plug to the corresponding interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1Schematic diagram of the structure of the terminal equipment; Figure 3 for Figure 2 Schematic diagram of the structure of the terminal device after rotating a certain angle; Figure 4 for Figure 1 Schematic diagram of the structure of the components on the middle isolation cover; Figure 5 for Figure 1 A cross-sectional view of the middle terminal device and the isolation cover after being rotated at a certain angle; Figure 6 for Figure 5 Schematic diagram of the structure of the components on the aviation plug; Figure 7 for Figure 6 Schematic diagram of the structure of the aviation plug; Figure 8 for Figure 7 Schematic diagram of the structure after the aviation plug and interface are decomposed; Figure 9 for Figure 5 Schematic diagram of the internal components of the isolation cover; Figure 10 for Figure 9 Schematic diagram of the structure after removing the servo motor 1 and the elastic membrane; Figure 11 for Figure 10 A schematic diagram of the structure of the components composed of multiple support plates; Figure 12 for Figure 11 a schematic cross-sectional view of the middle fixing plate; Figure 13 for Figure 12 Schematic diagram of the structure after rotation at a certain angle; Figure 14 for Figure 13 Schematic diagram of the structure of the middle regulating component; Figure 15 for Figure 14 Schematic diagram of the structure of the middle limit component; Figure 16 for Figure 12 Schematic diagram of the structure of the connection between the middle support plate and the aviation plug; Figure 17 for Figure 16 Schematic diagram of the structure of the middle drive component; Figure 18 for Figure 17 Schematic diagram of the structure of the middle power transmission component; Figure 19 for Figure 18 Schematic diagram of the structure of the assembly connected between the middle parallel shaft gear 1 and the tail nut; Figure 20for Figure 16 Schematic cross-sectional view of the middle support plate.

[0009] In the figure: 1. Tester; 2. Terminal equipment; 3. Isolation cover; 4. Aviation plug; 5. Blocking ring; 6. Pressing assembly; 61. Servo motor 1; 62. Elastic membrane; 63. Rotating shaft; 64. Turntable; 65. Reciprocating screw 1; 66. Fixed plate; 67. Fixed cover; 68. Limiting cylinder; 69. Gear rod; 610. Support plate; 7. Adjustment assembly; 71. One-way bearing (1); 72. Round rod; 73. Rotating gear; 74. Servo motor (2); 75. Electromagnetic interference simulator; 76. Internal gear ring; 77. Spring telescopic rod; 78. Clamping ring; 79. Reciprocating screw (2); 710. Spur gear; 711. Rack; 8. Drive assembly; 81. Positioning plate; 82. Cylinder; 83. Roller; 84. Parallel shaft gear 1; 85. Threaded cylinder; 86. Connecting rod; 87. Connecting frame; 88. Sliding ring; 89. Rod body; 9. Elastic part; 10. Tail nut; 11. Interface. DETAILED DESCRIPTION

[0010] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0011] Reference Figures 1-20 A distribution automation terminal detection device includes a tester 1, a terminal device 2, and an isolation cover 3. A plurality of interfaces 11 are fixedly installed on the terminal device 2, and a pressing component 6 is provided on the isolation cover 3.

[0012] When in operation, terminal device 2 (i.e., the existing Beidou distribution feeder terminal) can monitor the status and electrical parameters of the distribution line in real time, quickly locate and isolate faults and restore power supply. At the same time, it can also realize emergency data transmission, support remote control and dual power supply guarantee, and assist in the intelligent operation of the distribution network. Therefore, before and after the terminal device 2 is put into use, its electrical performance must be tested using existing electrical performance testing equipment (such as tester 1) to ensure its stability during operation.

[0013] from Figure 3It can be seen that the multiple interfaces 11 on the terminal device 2 differ in appearance, size, etc. according to their different functions. Starting from the upper right corner of the terminal device 2 and in a clockwise direction, the interfaces 11 thereon are BATT=backup power supply, COM=communication, LS=line side acquisition, TA=test / extension, and SPS=main power supply. Each interface 11 corresponds to an independent electrical functional domain, so as to avoid mixed interference of different signals or power supplies and reduce the risk of failure. At the same time, through the mutual cooperation between the interfaces 11, the equipment can also adapt to the needs of complex power distribution scenarios, and can also reduce the risk of fault conduction and misoperation. For example, the power interface (SPS / BATT) and the signal interface (COM / LS) are electrically isolated by isolation transformers and optocouplers to prevent primary-side faults (such as short circuit overcurrent) from being transmitted through the line to the secondary terminal, which helps to avoid terminal damage or data loss.

[0014] Reference Figures 1-10 The pressing assembly 6 includes a servo motor 61 fixedly mounted on the isolation cover 3, a driving end of the servo motor 61 is fixedly mounted with a rotating shaft 63, a turntable 64 is mounted on the rotating shaft 63 through a first one-way bearing, and a plurality of aviation plugs 4 are penetrated and slidably mounted on the turntable 64, and the aviation plugs 4 are all threadedly mounted with tail nuts 10 (from Figure 7 As can be seen in the figure, both the aviation plug 4 and the interface 11 are provided with threads that match the corresponding tail nut 10), and a lifting mechanism is installed on the rotating shaft 63.

[0015] The tester 1 is electrically connected to the plurality of aviation plugs 4, and a plurality of cables are connected between the tester 1 and the plurality of aviation plugs 4 ( Figure 1 The cables connecting the tester 1 and the multiple aviation plugs 4 are not fully shown).

[0016] The appearance, size and other performance of multiple aviation plugs 4 (existing equipment) can be adaptively designed according to the appearance of the interface 11 to be connected to them. At the same time, the aviation plug 4 also has the characteristics of anti-vibration, anti-impact, dustproof and waterproof, ensuring the stability of the electrical connection between the two during the subsequent electrical performance testing of the terminal device 2 by the tester 1, and avoiding the influence of poor contact on the accuracy of the test data. The internal shielding design of the aviation plug 4 can effectively suppress electromagnetic interference, ensure the purity of the electrical signal transmission during the testing process, and improve the reliability of the test results. Therefore, the current electrical performance testing equipment usually uses the aviation plug 4 to electrically connect with the interface 11 on the terminal device 2.

[0017] However, when using existing electrical performance testing equipment to test the electrical performance of the terminal device 2, the tester may use excessive force or insert or remove multiple aviation plugs 4 in sequence from the corresponding terminal interfaces due to human factors, which may cause the pins in the terminal interface to bend or break, or the terminals inside the plug to become loose or fall off. Moreover, if the aviation plug 4 is not inserted vertically into the terminal interface, it is also easy for the plug to not be fully inserted into the terminal interface, resulting in insufficient terminal contact area, causing signal interruption, data jump or power failure during testing, thereby reducing the accuracy of the final terminal electrical performance test results. In addition, human static electricity may also cause damage to the internal electronic components of the terminal device 2 during the process of plugging and unplugging the plug. In addition, due to different testing requirements of the terminal device 2, it is necessary to frequently plug and unplug the aviation plug 4 when the tester 1 is testing the electrical performance of the terminal device 2. For example, during the full-function joint debugging or certification-level testing of the terminal device 2 before delivery, multiple aviation plugs 4 need to be inserted into the corresponding interfaces 11 in sequence, which is a cumbersome operation. When it is necessary to perform sub-item functional tests on the terminal device 2, the tester needs to selectively insert some aviation plugs 4 into the corresponding interfaces 11 and unplug the remaining aviation plugs 4 from the corresponding interfaces 11 (if the remaining irrelevant aviation plugs 4 are not unplugged from the corresponding terminal interfaces at this time, it is easy to cause detection errors, Problems such as equipment damage and safety hazards not only reduce the accuracy of the final test results, but are also likely to cause damage to the test equipment and the terminal device 2), further increasing the tediousness of the test personnel's work. For example, when testing the backup power supply switching separately (verifying the seamless switching and endurance of the backup power supply after the main power supply is cut off), it is necessary to separately insert the aviation plugs 4 corresponding to the SPS (main power supply) and BATT (backup battery) into it, and disconnect other interfaces 11. When testing the main power supply performance (SPS interface 11) separately, it is necessary to unplug the elastic aviation plug 4 corresponding to the BATT interface 11.

[0018] from Figure 5 As can be seen in the figure, a placement slot is provided at the upper end of the isolation cover 3 (i.e., the end connected to the housing of the terminal device 2), and elastic snap-fitting parts are fixedly installed on the placement slot in a ring-shaped and evenly distributed manner. When the tester 1 is needed to detect the electrical performance of the terminal device 2, the multiple aviation plugs 4 on the isolation cover 3 are first roughly aligned with the corresponding interfaces 11 (due to human factors, when the isolation cover 3 is manually engaged on the terminal device 2, it is impossible to ensure the precise alignment of the multiple aviation plugs 4 with the corresponding interfaces 11), and then one end of the isolation cover 3 is sealed and engaged and installed at the opening of the terminal device 2 (such as Figure 4 As shown), at this time, the cooperation of multiple elastic snap-fit ​​parts can help improve the stability of the connection between the isolation cover 3 and the terminal device 2, ensuring the stability of the connection between the two after the subsequent multiple aviation plugs 4 are forced into the corresponding interfaces 11.

[0019] At the same time, a sealing ring is provided at the connection between the isolation cover 3 and the terminal device 2. The purpose is to ensure the sealing of the connection between the two after the isolation cover 3 is snapped into place on the terminal device 2. When the aviation plug 4 is inserted into the corresponding interface 11 and the connection between the two is stable, the isolation cover 3 can effectively prevent external dust, water vapor, oil and other environmental pollutants from entering the interface 11, thereby increasing the resistance when the aviation plug 4 contacts the corresponding interface 11 or causing terminal oxidation (such as dust and condensation water problems common in outdoor working scenarios). At the same time, when the aviation plug 4 is stably electrically connected to the corresponding interface 11 and the tester 1 starts to test the electrical performance of the terminal device 2, the isolation cover 3 can also effectively prevent external forces (such as accidental human touch) from damaging the stability of the connection between the aviation plug 4 and the corresponding interface 11. This can help to further improve the subsequent stable connection between the aviation plug 4 and the corresponding interface 11, that is, the stability of the electrical performance test of the terminal device 2 by the tester 1.

[0020] In addition, in order to further improve the stability of the electrical performance detection of the terminal device 2 by the tester 1 after the electrical connection between the tester 1 and the terminal device 2 is achieved through the cooperation between the aviation plug 4 and the corresponding interface 11, the isolation cover 3 can be made of a metal shielding material (such as a nickel-plated copper shell). This can form a Faraday cage effect, blocking the interference of external electrostatic fields and electromagnetic fields on the interface 11 signal (such as human body electrostatic coupling, etc.), and isolating the subsequent electromagnetic interference simulator 75 from running, so that when a strong magnetic field is formed inside the isolation cover 3, the strong magnetic field will have an impact on external electronic products or testers, which helps to further improve the accuracy of the electrical performance detection results of the terminal device 2 by the tester 1.

[0021] After the isolation cover 3 is stably mounted on the terminal device 2, the servo motor 1 61 is started. At this time, the operation of the servo motor 1 61 drives the rotating shaft 63 to rotate clockwise (as shown in FIG. Figure 10In the direction shown), the rotary disk 64 can be driven to rotate together by the cooperation between the rotating shaft 63 and the first one-way bearing (at this time, the rotation of the rotating shaft 63 will also drive the positioning cylinder, the second servo motor 74 and the components thereon to rotate together through the one-way bearing 1 71. At the same time, the second one-way bearing is in a rotatable state and will not rotate therewith). When the rotary disk 64 is forced to rotate clockwise, the multiple aviation plugs 4 can be driven to rotate together until the multiple aviation plugs 4 are directly opposite to the corresponding interfaces 11 (the initial positions of the multiple aviation plugs 4 are set to be located behind the corresponding interfaces 11 in the counterclockwise direction, so as to ensure the effect of adjusting the positions of the multiple aviation plugs 4 by the forced clockwise rotation of the rotary disk 64). In this way, the multiple aviation plugs 4 can be accurately aligned with the corresponding interfaces 11, ensuring the subsequent docking effect between the multiple aviation plugs 4 and the corresponding interfaces 11, helping to improve the accuracy of the subsequent insertion of the multiple aviation plugs 4 into the corresponding interfaces 11, and helping to ensure that the subsequent multiple aviation plugs 4 can be quickly inserted into the interior of the corresponding interfaces 11.

[0022] Reference Figures 1-16 、 Figure 20 The lifting mechanism includes a reciprocating screw rod 65 mounted on the rotating shaft 63 through a second one-way bearing, a fixing plate 66 is mounted on the reciprocating screw rod 65 through a ball nut, and an annular groove is provided on the fixing plate 66 (not shown in the figure, from Figure 13 As can be seen in the figure, a fixed cover 67 is rotatably mounted on the annular chute (the fixed cover 67 is composed of a cylinder and two plates, combined with Figure 11 and Figure 12 It can be seen that the cylinder is rotatably mounted in the annular chute, the two plates are fixedly mounted at the lower end of the cylinder, and the two plates are both fitted with the two adjacent support plates 610). A plurality of limiting cylinders 68 are fixedly mounted at the lower end of the fixed cover 67, and a gear rod 69 is slidably mounted in the limiting cylinder 68 (from Figure 14 As can be seen in the figure, multiple limit cylinders 68 are provided with movable grooves that match the corresponding gear rods 69, which facilitate the corresponding gear rods 69 to move relative to the corresponding limit cylinders 68 under force, and can also achieve movement limitation of the gear rods 69). The lower ends of the gear rods 69 are fixedly installed with support plates 610, and a locking component is installed between the support plate 610 and the aviation plug 4.

[0023] The engaging components include receiving grooves that are evenly distributed in an annular shape on the support plate 610 , and elastic members 9 are fixedly installed on the receiving grooves. The aviation plug 4 is provided with evenly distributed annular grooves, and the grooves are matched with the corresponding elastic members 9 .

[0024] An adjustment assembly 7 is provided at the lower end of the rotating shaft 63 for independently raising and lowering the plurality of aviation plugs 4 according to detection requirements.

[0025] The adjustment assembly 7 includes a plurality of straight plates fixedly mounted on the inner wall of the fixed cover 67, and round rods 72 are penetrated and rotatably mounted on the straight plates, and rotating gears 73 meshing with corresponding gear rods 69 are fixedly mounted on the round rods 72, and a positioning cylinder is mounted on the rotating shaft 63 through a one-way bearing 71, and a servo motor 2 74 is fixedly mounted on the lower end of the positioning cylinder, and a transmission rod is fixedly mounted on the driving end of the servo motor 2 74, and a bracket is mounted on the transmission rod through a one-way bearing 2, and a reciprocating screw rod 2 79 is rotatably mounted on the bracket, and a spur gear 710 is fixedly mounted on the reciprocating screw rod 2 79, and a disc is mounted on the reciprocating screw rod 2 79 through a ball nut 2, and a rack 711 is fixedly mounted on the disc, and the rotating gears 73 are matched with the rack 711, and a limiting component is installed on the transmission rod.

[0026] The limiting component includes a support frame fixedly mounted on the transmission rod, on which an inner gear ring 76 meshing with the spur gear 710 is fixedly mounted, and spring telescopic rods 77 evenly distributed in a ring shape are fixedly mounted on the inner gear ring 76, and a tightening ring 78 is fixedly mounted between the spring telescopic rods 77, and the rotating gears 73 are all matched with the tightening ring 78.

[0027] After the plurality of aviation plugs 4 are aligned with the corresponding interfaces 11, the aviation plugs 4 on the isolation cover 3 need to be inserted into the corresponding interfaces 11 (for example, during the full-function joint debugging or certification test of the terminal device 2 before delivery, by inserting the plurality of aviation plugs 4 into the corresponding interfaces 11, it is convenient to verify the overall reliability of the terminal device 2 in an extremely complex environment), and the servo motor 1 61 is reversed. At this time, the servo motor 1 61 is running, and the rotating shaft 63 is driven to rotate counterclockwise (for example, Figure 11 As shown in the direction, the reciprocating screw 1 65 can be driven to rotate by cooperating with the rotating shaft 63 and the second one-way bearing. When the reciprocating screw 1 65 rotates, the multiple support plates 610 can be driven to move downward by cooperating with the ball nut 1, the fixing plate 66, the fixing cover 67, the multiple limiting cylinders 68 and the multiple gear rods 69. At this time, when the multiple support plates 610 move downward, the corresponding aviation plugs 4 can be driven to move downward together by cooperating with the multiple slots of the corresponding multiple elastic members 9, so that the multiple aviation plugs 4 can be gradually and vertically inserted into the corresponding interfaces 11, which helps to improve the plug-in effect of the multiple aviation plugs 4 and the corresponding interfaces 11, and can also help to improve the plug-in efficiency of the multiple aviation plugs 4 and the corresponding interfaces 11 on the terminal device 2, and helps to improve the effect and efficiency of the tester 1 in detecting the electrical performance of the terminal device 2.

[0028] At the same time, in order to ensure the stability of the relative position between the gear rod 69 and the corresponding limiting cylinder 68 in a static state, that is, when the gear rod 69 is not subjected to force, it will not drive the corresponding support plate 610 and the aviation plug 4 to move downward (such as when the gear rod 69 is not subjected to force) under the coupling effect of its own gravity and the gravity of the components on the corresponding support plate 610. Figure 16In the direction shown), when the initial state is set, the positions of the plurality of rotating gears 73 are limited by the tightening ring 78 (as shown in FIG. Figure 16 As shown), multiple rotating gears 73 engage and limit the positions of corresponding gear rods 69, so as to ensure that when the reciprocating screw 65 is rotated under force, it drives the fixed plate 66, the fixed cover 67 and the multiple limiting cylinders 68, and the multiple rotating gears 73 to move up and down, and the multiple gear rods 69 and the multiple support plates 610 and the aviation plug 4 can move up and down together.

[0029] For example, when the servo motor 1 61 is running, the plurality of aviation plugs 4 are driven to rotate through the cooperation of the rotating shaft 63, the first one-way bearing, and the turntable 64. The aviation plugs 4 drive the corresponding support plate 610, the gear rod 69, the limiting cylinder 68, the fixing cover 67, the round rod 72, and the rotating gear 73 to rotate together. At this time, the rotating shaft 63 will drive the retaining ring 78 to rotate together through the cooperation of the one-way bearing 1 71, the positioning cylinder, the servo motor 2 74, the transmission rod, the supporting frame, the inner gear ring 76, and the plurality of spring telescopic rods 77. This ensures that at this stage, the positions of the plurality of rotating gears 73 are limited by the retaining ring 78, that is, the engagement resistance exerted by the gear blocks on the rotating gear 73 on the gear blocks on the corresponding gear rods 69 can effectively prevent the gear rod 69 from moving downward under the action of its own gravity and the gravity of the corresponding support plate 610. When the servo motor 1 61 is running, the rotating shaft 63 cooperates with the second one-way bearing and the reciprocating screw 1 65 to drive the fixed plate 66, the fixed cover 67 and the multiple straight plates, the multiple round rods 72 and the multiple rotating gears 73 to move downward (combined with Figure 14 and Figure 16 The cam 78 is held in a stationary position so that the plurality of rotating gears 73 are always restricted in rotation by the cam 78. The cam 78 is held in a stationary position so that the plurality of rotating gears 73 are always restricted in rotation by the cam 78. The cam 78 exerts downward pressure on the corresponding gear block on the corresponding gear rod 69 through the upper gear block, thereby driving the corresponding gear rod 69, the support plate 610 and the aviation plug 4 to move downward together (and when the plurality of rotating gears 73 are forced to drive the corresponding gear rod 69 to move downward, the plurality of rotating gears 73 can compress the cam 78 and move downward together through the elasticity of the plurality of spring telescopic rods 77). When the reciprocating screw rod 65 is continuously rotated under the force, When driving the fixed plate 66, the fixed cover 67, and the multiple rotating gears 73 to move upward and reset, the upper tooth block of the rotating gear 73 applies an upward thrust to the corresponding gear rod 69 and its meshing tooth block, which can achieve the effect of pushing the corresponding gear rod 69, the support plate 610 and the aviation plug 4 upward together, and ensure that when multiple aviation plugs 4 need to be inserted into or pulled out of the corresponding interface 11 synchronously, the multiple aviation plugs 4 can be forced to move up and down synchronously.

[0030] The purpose of setting up a rotational connection between the fixed plate 66 and the fixed cover 67 is that when the turntable 64 is driven by force to drive multiple aviation plugs 4 to rotate together, the driving force applied by the aviation plugs 4 to the corresponding limit cylinder 68 and the fixed cover 67 through the support plate 610 and the gear rod 69 can make the fixed cover 67 rotate together, that is, through the rotational connection between the two, the fixed cover 67 can be easily rotated relative to the fixed plate 66 under force.

[0031] When the aviation plugs 4 are aligned with the corresponding interfaces 11, the terminal device 2 needs to be tested for sub-items. For example, when the line telemetry accuracy test (LS+COM+SPS interface 11) of the terminal device 2 is required to verify the acquisition accuracy of the feeder voltage, current, and phase (telemetry core indicators), the servo motor 2 74 is started. At this time, the operation of the servo motor 2 74 will first drive the transmission rod to rotate counterclockwise (such as Figure 14 In the direction shown), when the transmission rod rotates counterclockwise, the bracket and the support frame cooperate to drive the internal gear ring 76, the reciprocating screw rod 2 79, the spur gear 710, and the rack 711 to rotate synchronously (because the internal gear ring 76 and the spur gear 710 are in a relatively static state at this time, the internal gear ring 76 cannot drive the reciprocating screw rod 2 79 to rotate by driving the spur gear 710 at this stage); When the rack 711 rotates under the force and is opposite to the corresponding rotating gear 73 of the SPS interface 11 (as shown in FIG Figure 14 As shown in the state), the servo motor 2 74 rotates in the opposite direction. At this time, when the servo motor 2 74 is running and the transmission rod is driven to rotate clockwise, it will only drive the inner gear ring 76, multiple spring telescopic rods 77, and the tightening ring 78 to rotate clockwise through the support frame. At this time, the driving force applied to the fixed position spur gear 710 by the rotation of the inner gear ring 76 can drive the spur gear 710 and the reciprocating screw rod 2 79 to rotate. When the reciprocating screw rod 2 79 rotates, the rack 711 can be driven to move upward (as shown in the state shown in the state). Figure 14 As shown in the direction), when the notch of the tightening ring 78 is just moved to the bottom of the rotating gear 73, the rack 711 is just engaged with the corresponding rotating gear 73. At this time, the driving force applied by the rack 711 to the rotating gear 73 can drive the rotating gear 73 to rotate, and the driving force applied by the rotation of the rotating gear 73 to the corresponding gear rod 69 can drive the corresponding gear rod 69, the support plate 610 and the aviation plug 4 to move downward (as shown in the direction shown in the direction), when the notch of the tightening ring 78 is just moved to the bottom of the rotating gear 73, the rack 711 is just engaged with the corresponding rotating gear 73. Figure 16 As shown in the direction), gradually insert it into the SPS interface 11, so that the SPS interface 11 can achieve the effect of independent downward movement of the corresponding aviation plug 4 under force.

[0032] After the SPS interface 11 is stably connected to the corresponding aviation plug 4, the servo motor 2 74 is rotated forward again. When the rack 711 is away from the corresponding rotating gear 73, the servo motor 2 74 is rotated reversely until the rack 711 moves downward and resets (as shown in FIG. Figure 14 As shown in the direction), and then rotate the servo motor 2 74 in the forward direction, and then repeat the above operation to drive the corresponding aviation plugs 4 of the LS interface 11 and the COM interface 11 to move downward in turn and insert them into the LS interface 11 and the COM interface 11.

[0033] At the same time, when the tester 1 completes the line telemetry accuracy test on the terminal device 2, the servo motor 2 74 can be rotated in the reverse direction. At this time, the transmission rod and the inner gear ring 76 rotate clockwise to cooperate with each other, and the rack 711 can be driven to move up to its highest position (such as the highest position) through the cooperation of the spur gear 710 and the reciprocating screw rod 2 79. Figure 14 The servo motor 2 74 is then rotated in the forward direction until the rack 711 is rotated by force and meshes with the corresponding rotating gear 73 of the SPS interface 11. At this time, the rack 711 can be driven to move downward and reset through the above operation. In this process, the rack 711 applies an upward driving force to the corresponding gear rod 69 through the rotating gear 73 (as shown in FIG. Figure 14 In the direction shown), the rack rod 69 can be driven to drive the corresponding support plate 610 and the aviation plug 4 to move up and reset until the aviation plug 4 is separated from the SPS interface 11. Thereafter, the rack 711 is first driven away from the rotating gear 73, and then the rack 711 is driven to move up and reset. When the rack 711 is relatively engaged with the rotating gear 73 of the COM interface 11 or the LS interface 11, the rack rod 711 is driven to move down and reset. The aviation plug 4 in the LS interface 11 and the COM interface 11 can be removed in turn. In this way, the aviation plug 4 can be independently raised and lowered as needed, which helps to improve the convenience and accuracy of the device in testing various electrical properties of the terminal equipment 2.

[0034] Reference Figure 7 、 16 - Figure 20 A driving assembly 8 is commonly provided between the aviation plugs 4 for driving the automatic tightening and release of the tail nut 10.

[0035] The driving assembly 8 includes parallel shaft gears 84 that are rotatably mounted on the aviation plug 4 respectively. The lower ends of the parallel shaft gears 84 are fixedly mounted with threaded cylinders 85, and sliding rings 88 are threadedly mounted on the threaded cylinders 85. The tail nuts 10 are provided with sliding grooves, and the sliding grooves are slidably mounted with rod bodies 89 that are evenly distributed in an annular shape, and one end of the rod body 89 is fixedly connected to the corresponding sliding ring 88. The lower ends of the parallel shaft gears 84 are fixedly mounted with connecting rods 86 that are evenly distributed in an annular shape, and the corresponding connecting rods 86 are commonly fixedly mounted with connecting frames 87, and the connecting frames 87 are rotatably connected to the corresponding sliding rings 88, and the lower ends of the connecting frames 87 are fixedly connected to the corresponding tail nuts 10. A power transmission component is commonly installed between the aviation plug 4 and the support plate 610.

[0036] The power transmission components include positioning plates 81 fixedly mounted on the aviation plug 4 respectively, and round rollers 83 are respectively installed on the positioning plates 81 and rotatably mounted thereon. Parallel shaft gear 2 meshing with corresponding parallel shaft gear 1 84 is fixedly mounted on the round rollers 83. Cylinders 82 are fixedly mounted on the lower ends of the support plates 610, and driving rods matching the corresponding round rollers 83 are fixedly mounted on the inner walls of the cylinders 82.

[0037] Combine Figure 7 It can be seen that after the aviation plug 4 is electrically connected to the interface 11 on the terminal device 2, it is usually necessary to manually rotate the tail nut 10 on the aviation plug 4 downward (the thread opened on the aviation plug 4 is matched with the thread opened on the outer wall of the corresponding interface 11, so as to facilitate the smooth sliding of the corresponding tail nut 10 under force thereon) until the tail nut 10 moves to the middle position of the joint between the corresponding aviation plug 4 and the interface 11. In this way, the tail nut 10 can be re-locked on the corresponding aviation plug 4 and the interface 11, which can help to further improve the stability of the connection between the interface 11 and the corresponding aviation plug 4. However, after the aviation plug 4 is inserted into the corresponding interface 11, the tail nut 10 on it needs to be rotated again, which will increase the preparation steps of the corresponding inspection personnel when inspecting the terminal device 2, further increasing the cumbersomeness of the inspection personnel in plugging and unplugging the aviation plug 4.

[0038] In the present invention, as required, the corresponding gear rod 69 is driven downward, and the corresponding aviation plug 4 is driven to be fully inserted into the corresponding interface 11 through the cooperation of the corresponding support plate 610, multiple elastic members 9, and multiple card slots. At this time, when the gear rod 69 drives the support plate 610, the corresponding cylinder 82, and the driving rod to move downward under continuous force, the multiple elastic members 9 on the support plate 610 will contract outward under the movement limit of the corresponding card slot and move out of the corresponding card slot (such as Figure 20 In the direction shown, a plurality of elastic members 9 are provided, each consisting of an elastic rod and a sphere. The elastic rods are fixedly mounted in the corresponding receiving grooves, and the spheres are fixedly mounted on the corresponding elastic rods. In the initial state, the spheres are located inside the corresponding slots. When the spheres are subjected to force and move downward relative to the corresponding slots, the spheres will be moved out of the corresponding slots by compressing the corresponding elastic rods, and the driving rods move downwards, and cooperate with the threaded grooves on the corresponding round rollers 83 (from Figure 18As can be seen in the figure), the round roller 83 can be driven to rotate, and when the round roller 83 drives the corresponding parallel shaft gear 2 to rotate, the parallel shaft gear 2 cooperates with the corresponding parallel shaft gear 1 84 to drive the parallel shaft gear 1 84 to rotate. At this time, the rotation of the parallel shaft gear 1 84 can drive the corresponding tail nut 10 to move downward through the cooperation of the corresponding threaded cylinder 85, the sliding ring 88, and multiple rod bodies 89. At the same time, the forced rotation of the parallel shaft gear 1 84 can drive the corresponding tail nut 10 to rotate through the cooperation with the corresponding multiple connecting rods 86 (multiple connecting rods 86 are provided with force-bearing and telescopic functions) and the connecting frame 87, thereby achieving the effect of rotating and moving the tail nut 10 downward until the tail nut 10 rotates to the corresponding aviation plug 4 and the interface 11 docking position, which can help to further improve the efficiency of the device in plugging and unplugging the aviation plug 4, that is, the convenience and efficiency of the tester 1 in testing the electrical performance of the terminal device 2.

[0039] At the same time, when the aviation plug 4 needs to be removed from the corresponding interface 11, the gear rod 69 is driven by the force to drive the corresponding cylinder 82 and the driving rod to move upward (such as Figure 18 As shown in the direction), at this time, the driving rod applies a reverse driving force to the corresponding round roller 83, which causes the round roller 83 to drive the corresponding parallel shaft gear 84 to rotate in the opposite direction. At this time, the rotation of the parallel shaft gear 84 can drive the corresponding tail nut 10 to rotate and move upward through cooperation with the corresponding threaded cylinder 85, connecting rod 86, sliding ring 88, connecting frame 87 and multiple rod bodies 89. When the tail nut 10 moves up to the initial position, the gear rod 69 drives the corresponding support plate 610 and multiple elastic members 9 to move to the position exactly opposite to the corresponding slot. At this time, due to the elasticity of the multiple elastic members 9 themselves, they will quickly move toward the middle. After the elastic members 9 are re-engaged in the corresponding slots, the gear rod 69 drives the support plate 610 to continue to move upward, which can drive the corresponding aviation plug 4 to move up and reset.

[0040] Reference Figures 1-20 The lower end of the aviation plug 4 is sealed and slidably installed with a sealing ring 5, the lower end of the transmission rod is installed with an electromagnetic interference simulator 75, the upper end of the isolation cover 3 is fixedly installed with two elastic membranes 62, and one end of the corresponding aviation plug 4 is sealed and slidably installed on the corresponding elastic membrane 62.

[0041] The connection parts between the multiple aviation plugs 4 and the corresponding elastic membranes 62 are made of hard materials. The purpose is that when in the initial state, the turntable 64 is forced to drive the multiple aviation plugs 4 to rotate, the overall elasticity of the two elastic membranes 62 can facilitate the compression of the corresponding elastic membranes 62 by the rotation of the multiple aviation plugs 4, thereby ensuring the overall sealing effect of the isolation cover 3 at this stage. When the aviation plug 4 is subsequently forced to move up and down, the hard material characteristics of the connection parts between the aviation plug 4 and the corresponding elastic membrane 62 can facilitate the compression of the corresponding elastic membrane 62 by the rotation of the multiple aviation plugs 4, thereby ensuring the overall sealing effect of the isolation cover 3 at this stage. When the aviation plug 4 is forced to move up and down, the hard material characteristics of the connection parts between the aviation plug 4 and the corresponding elastic membrane 62 can facilitate the compression of the corresponding elastic membrane 62 by the aviation plug 4 relative to the corresponding elastic membrane 62 when the aviation plug 4 is forced to move up and down.

[0042] At the same time, the blocking rings 5 ​​are all made of metal shielding materials, such as copper, aluminum, etc., and an isolation cover 3 is set to stably fit on the terminal device 2. After the position of the aviation plug 4 is adjusted, multiple blocking rings 5 ​​can just block the butt joint between the corresponding aviation plug 4 and the interface 11. The purpose is that if it is necessary to perform sub-item electrical performance testing on the terminal device 2, only part of the aviation plug 4 needs to be inserted into the corresponding interface 11. At this time, when the tester 1 cooperates with the corresponding interface 11 through this part of the aviation plug 4 to test the electrical performance of the terminal device 2, a magnetic field will be generated. If the generated magnetic field is large, it is easy to damage the internal pins of the remaining unconnected interfaces 11. At this time, by utilizing the conductivity and magnetic permeability of the metal material of the blocking ring 5 itself, the electromagnetic signal can be effectively reflected and shielded, thereby achieving the protection of the corresponding interface 11 and the aviation plug 4, which helps to improve the accuracy of the relevant electrical performance test results of the terminal device 2 when the tester 1 is electrically connected to the interface 11 through the corresponding aviation plug 4.

[0043] At the same time from Figure 8 As can be seen in the figure, the external shapes of multiple sealing rings 5 ​​are matched with the anti-fouling notches on the corresponding aviation plugs 4 and the raised keys on the corresponding interfaces 11. The purpose is to facilitate that when the aviation plugs 4 are gradually inserted into the corresponding interfaces 11 under force, the raised keys inside the interfaces 11 can apply an upward extrusion force to the corresponding sealing rings 5, so that the sealing rings 5 ​​move upward. At the same time, when the aviation plugs 4 are removed from the corresponding interfaces 11, the sealing rings 5 ​​can gradually slide to the lowermost position of the corresponding aviation plugs 4 under the action of their own gravity.

[0044] When the aviation plug 4 is electrically connected to the corresponding interface 11 and the tester 1 starts to detect the electrical performance of the terminal device 2, if it is necessary to simulate the influence of the external magnetic field on the stability of the electrical performance of the terminal device 2 during operation, the electromagnetic interference simulator 75 can be started. By cooperating with the sealing isolation cover 3, the influence of a strong magnetic field on the stability of the electrical performance of the terminal device 2 can be simulated, which can help to improve the breadth of the test content of the terminal device 2 by the device.

[0045] The internal components and specific working principles of the electromagnetic interference simulator 75 are all existing technologies and will not be further elaborated here. At the same time, if it is necessary to simulate the impact of extreme temperatures on the stability of the electrical performance of the terminal device 2, the electromagnetic interference simulator 75 can be replaced with a thermometer or an additional thermometer can be added. The specific choice can be made according to the needs of the user.

[0046] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0047] Reference Figures 1-20 A method for using a distribution automation terminal detection device comprises the following steps: S1: The inspector must first snap the isolation cover 3 onto the terminal device 2 and start the servo motor 1 61. The servo motor 1 61 and the turntable 64 cooperate to align the aviation plug 4 with the corresponding interface 11, ensuring the accuracy of subsequent insertion of the aviation plug 4 into the corresponding interface 11. S2: According to the detection requirements, if all aviation plugs 4 need to be inserted into the corresponding interfaces 11, by utilizing the cooperation of the servo motor 61 and the reciprocating screw 65, multiple aviation plugs 4 can be inserted into and removed from the corresponding interfaces 11 simultaneously, thereby improving the efficiency and convenience of the detection of the terminal device 2; S3: If, according to the detection requirements, some of the aviation plugs 4 need to be selectively inserted into the corresponding interfaces 11, the corresponding aviation plugs 4 can be selectively inserted into the corresponding interfaces 11 by utilizing the operation of the second servo motor 74 in conjunction with the adjustment component 7, thereby helping to improve the adaptability of the device to the detection requirements of the terminal device 2; S4: After the required aviation plugs 4 are fully inserted into the corresponding interfaces 11, the driving assembly 8 can drive multiple tail nuts 10 to automatically rotate downward, further locking the corresponding aviation plugs 4 and interfaces 11, which can help further improve the stability of the device during the detection process of the terminal device 2 and the accuracy of the detection results.

[0048] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A power distribution automation terminal detection device, comprising a tester (1), a terminal device (2), and an isolation cover (3), wherein a plurality of interfaces (11) are fixedly mounted on the terminal device (2), characterized in that: A pressing component (6) is provided on the isolation cover (3); The pressing assembly (6) includes a servo motor (61) fixedly mounted on the isolation cover (3), a rotating shaft (63) fixedly mounted on the driving end of the servo motor (61), a turntable (64) mounted on the rotating shaft (63) via a first one-way bearing, a plurality of aviation plugs (4) passing through and slidably mounted on the turntable (64), a tail nut (10) being threadedly mounted on each of the aviation plugs (4), and a lifting mechanism being mounted on the rotating shaft (63); An adjustment assembly (7) is provided at the lower end of the rotating shaft (63) for independently raising and lowering a plurality of aviation plugs (4) according to detection requirements. A driving assembly (8) is provided between the aviation plugs (4) for driving the automatic tightening and release of the tail nut (10).

2. A distribution automation terminal detection device according to claim 1, characterized in that: The lifting mechanism includes a reciprocating screw rod (65) mounted on a rotating shaft (63) via a second one-way bearing, a fixed plate (66) mounted on the reciprocating screw rod (65) via a ball nut, an annular groove is provided on the fixed plate (66), a fixed cover (67) is rotatably mounted on the annular groove, a plurality of limiting cylinders (68) are fixedly mounted on the lower end of the fixed cover (67), a gear rod (69) is slidably mounted in each of the limiting cylinders (68), a support plate (610) is fixedly mounted on the lower end of each of the gear rods (69), and a locking component is commonly installed between the support plate (610) and the aviation plug (4).

3. A distribution automation terminal detection device according to claim 2, characterized in that: The engaging components include receiving grooves that are evenly distributed in an annular shape on the support plate (610), and elastic members (9) are fixedly mounted on the receiving grooves. The aviation plugs (4) are each provided with evenly distributed annular grooves, and the grooves are matched with corresponding elastic members (9).

4. A distribution automation terminal detection device according to claim 2, characterized in that: The adjustment assembly (7) comprises a plurality of straight plates fixedly mounted on the inner wall of the fixed cover (67), each of the straight plates being penetrated by a round rod (72) and rotatably mounted thereon, and each of the round rods (72) being fixedly mounted with a rotating gear (73) meshing with a corresponding gear rod (69); A positioning cylinder is mounted on the rotating shaft (63) via a one-way bearing (71), a servo motor (74) is fixedly mounted on the lower end of the positioning cylinder, a transmission rod is fixedly mounted on the driving end of the servo motor (74), a bracket is mounted on the transmission rod via a one-way bearing (7), a reciprocating screw (79) is rotatably mounted on the bracket, a spur gear (710) is fixedly mounted on the reciprocating screw (79), a disc is mounted on the reciprocating screw (79) via a ball nut (71), a rack (711) is fixedly mounted on the disc, and the rotating gears (73) are all matched with the rack (711), and a limiting component is mounted on the transmission rod.

5. A distribution automation terminal detection device according to claim 4, characterized in that: The limiting component includes a support frame fixedly mounted on the transmission rod, an inner gear ring (76) meshing with the spur gear (710) is fixedly mounted on the support frame, spring telescopic rods (77) uniformly distributed in an annular shape are fixedly mounted on the inner gear ring (76), a tightening ring (78) is fixedly mounted between the spring telescopic rods (77), and the rotating gears (73) are all matched with the tightening ring (78).

6. A distribution automation terminal detection device according to claim 1, characterized in that: The driving assembly (8) includes parallel shaft gears (84) rotatably mounted on the aviation plug (4), the lower ends of the parallel shaft gears (84) are fixedly mounted with threaded cylinders (85), the threaded cylinders (85) are threadedly mounted with sliding rings (88), the tail nuts (10) are provided with sliding grooves, the sliding grooves are slidably mounted with rods (89) evenly distributed in an annular shape, and one end of the rods (89) is fixedly connected to the corresponding sliding rings (88); The lower ends of the parallel shaft gears (84) are fixedly mounted with connecting rods (86) uniformly distributed in an annular shape, and connecting frames (87) are fixedly mounted between the corresponding connecting rods (86), and the connecting frames (87) are rotatably connected to the corresponding sliding rings (88), and the lower ends of the connecting frames (87) are fixedly connected to the corresponding tail nuts (10), and a power transmission component is installed between the aviation plug (4) and the support plate (610).

7. A distribution automation terminal detection device according to claim 6, characterized in that: The power transmission components include positioning plates (81) respectively fixedly mounted on the aviation plugs (4), circular rollers (83) passing through and rotatably mounted on the positioning plates (81), and parallel axis gears (2) meshing with corresponding parallel axis gears (84) respectively fixedly mounted on the circular rollers (83); A cylinder (82) is fixedly mounted on the lower end of each support plate (610), and a driving rod that matches a corresponding round roller (83) is fixedly mounted on the inner wall of each cylinder (82).

8. A distribution automation terminal detection device according to claim 1, characterized in that: The lower end of each aviation plug (4) is sealed and slidably mounted with a blocking ring (5), the lower end of each transmission rod is mounted with an electromagnetic interference simulator (75), the upper end of each isolation cover (3) is fixedly mounted with two elastic membranes (62), and one end of each corresponding aviation plug (4) is sealed and slidably mounted on the corresponding elastic membrane (62).

9. A method for using a distribution automation terminal detection device, using the distribution automation terminal detection device according to claim 8, characterized in that: The following steps are involved: S1: The inspector must first snap-fit ​​the isolation cover (3) onto the terminal device (2) and start the servo motor (61). At this time, the servo motor (61) and the turntable (64) are used to align the aviation plug (4) with the corresponding interface (11), ensuring the accuracy of the subsequent connection between the aviation plug (4) and the corresponding interface (11); S2: According to the detection requirements, if all the aviation plugs (4) need to be inserted into the corresponding interfaces (11), by utilizing the cooperation of the servo motor (61) and the reciprocating screw (65), multiple voyage plugs (4) can be inserted into and removed from the corresponding interfaces (11) simultaneously, thereby improving the efficiency and convenience of the detection of the terminal device (2); S3: If, according to the detection requirements, it is necessary to selectively insert some of the aviation plugs (4) into the corresponding interfaces (11), by utilizing the cooperation of the servo motor 2 (74) and the adjustment component (7), the corresponding aviation plugs (4) can be selectively inserted into the corresponding interfaces (11), thereby helping to improve the adaptability of the device to the detection requirements of the terminal device (2); S4: After all the required aviation plugs (4) are fully inserted into the corresponding interfaces (11), the driving assembly (8) can be used to drive the plurality of tail nuts (10) to automatically rotate downward, thereby further locking the corresponding aviation plugs (4) and the interfaces (11), thereby helping to further improve the stability of the device during the detection process of the terminal device (2) and the accuracy of the detection results.

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