A microgrid network detection device and a detection method

Abstract

The present invention discloses a microgrid network detection device and a detection method, including a mobile vehicle. A left lifting telescopic member and a right lifting telescopic member are slidably connected to the upper part of the mobile vehicle. The upper parts of the left lifting telescopic member and the right lifting telescopic member are both connected to a detection contact block through springs. A conductive shell is arranged inside the detection contact block. The two conductive shells are connected through a connecting wire. A detection power supply, a detection instrument, a detection resistor, and a detection switch are connected in series on the connecting wire. By providing the mobile vehicle, the left lifting telescopic member, the right lifting telescopic member, the detection contact block, the conductive shell, the connecting wire, the detection power supply, the detection instrument, the detection resistor, and the detection switch, when the detection switch is turned on, by observing the detection instrument, it can be judged whether there is a problem with the line segment between the two detection contact blocks, and the entire line can be initially detected quickly and step by step in segments to find the approximate problem segment of the problem line, and then the fault location of the segmented line with problems can be searched, improving the search efficiency for the fault location of the line.

Description

Technical Field

[0001] The present invention belongs to the technical field of line detection devices, and particularly relates to a microgrid network detection device and a detection method. Background Art

[0002] A microgrid refers to a small power generation and distribution system composed of distributed power sources, energy storage devices, energy conversion devices, loads, monitoring and protection devices, etc. The grid network of the microgrid is the main transmission mechanism of the microgrid. During the maintenance process of the microgrid network, network detection devices are often used to detect the network lines of the microgrid.

[0003] For network detection devices, when detecting long problem lines, it is not convenient to quickly find the location of line faults, so the network cannot be repaired in time. Summary of the Invention

[0004] In view of the deficiencies and defects in the prior art, the purpose of the present invention is to provide a microgrid network detection device, which solves the problem that the network detection device in the prior art is not convenient to quickly find the location of line faults, so the network cannot be repaired in time.

[0005] To solve the above technical problems, the present invention adopts the following technical scheme: A microgrid network detection device for detecting microgrid lines includes a mobile vehicle. At both ends of the left and right sides of the mobile vehicle, there is a liftable line clamping member for clamping and fixing the line. On the upper part of the mobile vehicle, there is a first chute that can extend left and right. A left lift telescopic member and a right lift telescopic member are slidably connected left and right in the first chute. The upper parts of the left lift telescopic member and the right lift telescopic member are both connected to a detection contact block through springs. Inside the detection contact block, there is a V-shaped groove. The inner bottom of the V-shaped groove is arc-shaped. An arc-shaped conductive shell that contacts the line is provided in the V-shaped groove. The inner diameter of the conductive shell is greater than or equal to the diameter of the line. The two conductive shells are connected by a connecting wire. A detection power supply, a detection instrument, a detection resistor, and a detection switch are connected in series on the connecting wire. The lines between the two conductive shells, the connecting wire, and the two detection contact blocks form a loop path. The detection contact block is also provided with a wire pressing marking member for pressing the line on the detection contact block and marking the fault location.

[0006] As a further improvement of the present invention, the line clamping member includes a lifting rod. At the top of the lifting rod, there is a U-shaped plate. Inside the U-shaped plate, on the front and rear sides, there is an arc-shaped clamping plate connected by a horizontal telescopic rod. The two arc-shaped clamping plates are symmetrically arranged and enclose a ring to clamp the line.

[0007] As a further improvement of the present invention, a support rod extending left and right is provided on the upper part of the mobile vehicle. Both ends of the support rod are fixed to the mobile vehicle through vertical rods. A plurality of sliding rings are slidably arranged on the support rod, and each sliding ring is connected to a connecting wire through a suspension rope.

[0008] As a further improvement of the present invention, the wire pressing and marking member includes a wire pressing plate. The wire pressing plate is rotatably hinged on the inner inclined surface of the detection contact block. A marking cavity is arranged inside the wire pressing plate, and a marking nozzle is arranged at the bottom of the wire pressing plate. The marking nozzle communicates with the marking cavity.

[0009] As a further improvement of the present invention, an elastic pressing block is arranged at the bottom of the wire pressing plate, and an arc-shaped groove is arranged at the bottom of the elastic pressing block.

[0010] As a further improvement of the present invention, a slot is arranged at the bottom of the detection contact block. The upper end of the spring is connected and arranged in the slot, and the lower end of the spring is connected to the left lifting telescopic member or the right lifting telescopic member.

[0011] As a further improvement of the present invention, an insertion hole is arranged in the middle of the bottom of the detection contact block. The end of the connecting wire passes through the insertion hole of the detection contact block and is connected to the conductive shell.

[0012] As a further improvement of the present invention, two redirecting wheels are rotatably connected to the upper ends of the left lifting telescopic member and the right lifting telescopic member through two support rods. One end of the connecting wire is wound around the redirecting wheel of the left lifting telescopic member and is redirected from the directly upper end of the left lifting telescopic member to the front side of the left lifting telescopic member. The other end of the connecting wire is wound around the redirecting wheel of the right lifting telescopic member and is redirected from the directly upper end of the right lifting telescopic member to the front side of the right lifting telescopic member.

[0013] As a further improvement of the present invention, a second chute is arranged on both the left and right sides of the first chute on the mobile vehicle. The wire clamping member is slidably connected to the second chute through a second slider in the left and right directions.

[0014] A detection method using a microgrid network detection device for detection includes the following steps:

[0015] (1) Preparation: Adjust the wire clamping member and the detection contact block downward to a height lower than the wire; then place the mobile vehicle parallel under the right end of the wire; slide the left lifting telescopic member to the left extreme position, and slide the right lifting telescopic member to the right extreme position. At this time, the wire between the two detection contact blocks is the segmented detection section;

[0016] (2) Initial inspection of the segmented inspection section: adjust the left lifting telescopic member and the right lifting telescopic member upward so that the conductive shells in the detection contact blocks can all contact the line, and the line pressing marker blocks the upper side of the line. Turn on the detection switch and observe the detection instrument. If the detection instrument data is normal, it means that the section of the line between the two detection contact blocks is normal. Then proceed to step (3a) to inspect the next segmented inspection section of the line. If the detection instrument data is abnormal, it means that there is a problem with the segmented inspection section between the two detection contact blocks. Then proceed to step (3b) to conduct a specific fault location search for this segmented inspection section until the entire line is inspected.

[0017] (3a) Testing the next segmented inspection section of the line: retract the left lifting telescopic member and the right lifting telescopic member downward, then move the moving vehicle to the left by the horizontal length of the segmented inspection section, and then repeat step (2) to complete the initial testing of the next segmented inspection section of the line;

[0018] (3b) Finding the fault location within the segmented detection section: Move the two line clamping parts upward and clamp the line, then slide the left lifting and telescopic part to the right. When the detection instrument returns to normal, the left side of the detection contact block on the left is the first fault location. The line pressing marking part marks the first fault location. In this segmented detection section, the right side of the first fault location is the normal section, and the left side of the first fault location is the first section to be eliminated. Then, the first section to be eliminated is fault-finding;

[0019] Fault finding of the first section to be eliminated: move the right telescopic lifting member to the left side of the first fault location, move the left telescopic lifting member to the left side of the right telescopic lifting member, and then gradually move the left telescopic lifting member to the left. If the detection instrument is always normal during the process of the left telescopic lifting member moving to the left to the extreme position, it means that the first section to be eliminated is completely normal and the first section to be eliminated has been found. Return to step (3a) to perform the detection of the next segmented detection section. If the detection instrument value is abnormal when the left telescopic lifting member moves to a certain position to the left, at this time, the position close to the right side of the left detection contact block is the second fault location, and the line pressing marker marks the second fault location. In this first section to be eliminated, the right side of the second fault location is the normal section, and the left side of the second fault location is the second section to be eliminated. Then, the second section to be eliminated is fault-finded according to the method of fault-finding of the first section to be eliminated. Repeat this process until all the fault locations of the segmented detection section are found. Return to step (3a) to test the next segmented detection section line.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. By setting up a mobile vehicle, a slidable left lifting telescopic member and a slidable right lifting telescopic member are arranged on the mobile vehicle, and a detection contact block is arranged on each of the left lifting telescopic member and the right lifting telescopic member. A V-shaped groove is arranged on the detection contact block, and a conductive shell is arranged in the V-shaped groove. The two conductive shells are connected by a connecting wire, and a detection power supply, a detection instrument, a detection resistor and a detection switch are connected in series on the connecting wire. When detecting a line fault, the left lifting telescopic member and the right lifting telescopic member can be adjusted to the state with the maximum distance first, and then the left lifting telescopic member and the right lifting telescopic member are adjusted upward so that the conductive shells on the contact blocks can contact the wire. At this time, the line segment between the two detection contact blocks, the connecting wire, the detection power supply, the detection resistor and the detection instrument can form a loop. By turning on the detection switch, the loop can be powered on. By observing whether there is a numerical display on the detection instrument, it can be judged whether there is a problem with the line segment between the two detection contact blocks. And by this method, the whole line can be preliminarily detected quickly and step by step in segments. And during the detection process, if it is found that there is a problem with the line segment between any two detection contact blocks, then the left lifting telescopic member and the right lifting telescopic member are adjusted by moving, and then the fault location between this segmented line is specifically searched one by one. That is, overall, the line is detected in segments one by one first to find the approximate problem segment of the problem line, and then the fault location of the segmented line with problems is searched, which can greatly improve the detection efficiency of the line and the search efficiency of the fault location.

[0022] In addition, two line clamping members are arranged on the mobile vehicle. When searching for the fault location of the segmented line, they can be used to clamp the line to avoid the dragging and shaking of the whole line caused by the movement of the contact block and improve the movement stability of the contact block. In addition, with the arrangement of the line clamping members, after clamping the line, the mobile vehicle can be translated, so as to pull the line to one side, so as to detect the fixing firmness of the line, and by translating the mobile vehicle, the sag state of the line can be changed or measured.

[0023] 2. By setting the line clamping member as a structure of a lifting rod, a U-shaped plate, a horizontal telescopic rod and an arc-shaped clamping plate, the lifting rod can drive the arc-shaped clamping plate to move up and down, so that the arc-shaped clamping plate can just face the line, and then the horizontal telescopic rod drives the two arc-shaped clamping plates to approach each other to clamp the line, and the structure is simple.

[0024] 3. By arranging a support rod on the mobile vehicle, a plurality of sliding rings are slidably arranged on the support rod, and each sliding ring is connected to the connecting wire by a suspension rope. When the left lifting telescopic member and the right lifting telescopic member move left and right, the connecting wire can be driven to slide on the support rod.

[0025] 4. By setting the wire-pressing marker as a wire-pressing plate, a marker cavity is provided inside the wire-pressing plate, and a marker nozzle is provided at the bottom of the wire-pressing plate. The marker nozzle communicates with the marker cavity. By setting the wire-pressing marker as a wire-pressing plate and providing a marker cavity and a marker nozzle on the wire-pressing plate, the wire-pressing plate can press the circuit to prevent the circuit from detaching from the conductive shell. In addition, the provision of the marker cavity and the marker nozzle allows marker ink to be placed in the marker cavity, thereby enabling the marking of the fault location.

[0026] In addition, by providing an elastic pressing block at the bottom of the wire-pressing plate, hard pressing of the circuit can be avoided, so that when the detection contact block moves, the circuit is prevented from being pulled and broken.

[0027] As a further improvement of the present invention, an elastic pressing block is provided at the bottom of the wire-pressing plate, and an arc-shaped groove is provided at the bottom of the elastic pressing block.

[0028] 5. By connecting the detection contact block to the left lifting telescopic or right lifting telescopic member through a spring, elastic adjustment can be made adaptively in the height direction according to the actual height of the circuit, ensuring contact between the conductive shell and the circuit.

[0029] 6. By slidably connecting the circuit clamping member to the mobile vehicle in a left-right manner, when detecting the circuit in segments, the circuit can be clamped first, and then the two circuit clamping members can slide outwards to tighten the segmented circuit, facilitating the movement detection of the detection contact block.

[0030] 7. By using the detection method of the microgrid network detection device, the left lifting telescopic member and the right lifting telescopic member are adjusted outwards to the maximum distance, and the heights of the left lifting telescopic member and the right lifting telescopic member are adjusted so that the conductive shell on the detection contact block can contact the circuit. The section of the circuit between the two detection contact blocks is the segmented detection section. Then, the connecting wire, the conductive shell, the detection power supply, the detection resistor, the detection instrument, and the section of the circuit between the two detection contact blocks form a loop, so that the overall state of the section of the circuit between the two detection contact blocks can be detected for faults. If there is no problem with this segmented detection section of the circuit, the mobile vehicle is directly translated, and then the next segmented detection section is detected. By detecting the circuit in segments one by one in this way, the approximate fault area of the circuit can be quickly located. If a problem is found in a certain segmented detection section of the circuit during the segmented detection process, then the specific fault location within this segmented detection section of the circuit can be searched for.

[0031] In addition, when specifically searching for the faulty location, through the cooperation of moving the left lifting telescopic member and the right lifting telescopic member, first find the normal section and the first faulty location, then exclude the normal section, and then detect the first section to be excluded to check whether there are other faulty locations in the first section to be excluded. And search for the second section to be excluded according to this method, and so on, until the search of the entire first section to be excluded is completed, so as to quickly find out multiple faulty locations in the segmented detection section one by one, and mark the faulty locations, which is convenient for subsequent maintenance and reduces the operation steps.

[0032] Overall, the method of first performing segmented detection on the line and then specifically searching for the faulty location can greatly improve the efficiency of finding the faulty location of the entire line. And during the process of moving and segmentally detecting one by one by the moving vehicle, the detection contact block is retracted downward and then extended upward for detection, avoiding the ineffective wear of the line caused by the detection contact block always contacting and moving with the line, or the damage to the line caused by the dragging of the line. Brief Description of the Drawings

[0033] The present invention will be further described below with reference to the drawings:

[0034] Figure 1 is a schematic structural diagram of the present invention;

[0035] Figure 2 is Figure 1 the E-E sectional view of

[0036] Figure 3 is Figure 1 the enlarged view at A;

[0037] Figure 4 is Figure 2 the enlarged view at B;

[0038] Figure 5 is Figure 2 the enlarged view at C;

[0039] Figure 6 is a schematic structural diagram of the line clamping member;

[0040] Figure 7 is Figure 2 the enlarged view at D;

[0041] Figure 8 is an example illustration of the detection contact block close to the left side and the detection contact block close to the right side;

[0042] In the figure: 1. Moving vehicle; 2. Line clamping member; 201. Lifting rod; 202. U-shaped plate; 203. Horizontal telescopic rod; 204. Arc-shaped clamping plate; 3. First chute; 4. Left lifting and telescopic member; 5. Pressing line marking member; 501. Pressing line plate; 502. Marking cavity; 503. Marking nozzle; 504. Elastic pressing block; 505. Hinge plate; 6. Spring; 7. Detection contact block; 8. V-shaped groove; 9. Conductive shell; 10. Connecting wire; 11. Detection power supply; 12. Detection instrument; 13. Detection resistor; 14. Right lifting and telescopic member; 15. Support rod; 16. Vertical rod; 17. Slip ring; 18. Groove; 19. Support plate; 20. First slider; 21. Deflecting wheel; 22. Support rod; 24. Contact sensor; 25. Suspension rope; 26. Detection switch; 27. Second chute; 28. Second slider. Specific implementation manner

[0043] The following will further describe the present invention in detail with reference to the Figure 1-8 accompanying drawings. For a clearer illustration, only the structures related to the inventive points of the present invention are shown in the figure.

[0044] For the convenience of description, taking Figure 1 as an example, the left - right direction is the transverse direction, the front - back direction is the longitudinal direction, and the up - down direction is the vertical direction.

[0045] An embodiment of the present invention discloses a micro - grid network detection device. Referring to Figure 1 and Figure 2 , a micro - grid network detection device for detecting a micro - grid line, the line being a conductor, includes a moving vehicle 1. A driving mechanism capable of driving it to move is provided on the moving vehicle 1. The driving mechanism on the moving vehicle 1 can adopt the common walking vehicle power mechanism in the prior art. Since no improvement is made in this application, it will not be elaborated here.

[0046] As Figure 1 and Figure 2 shown, a first chute 3 that can extend left - right is provided on the upper part of the moving vehicle 1. A left lifting and telescopic member 4 and a right lifting and telescopic member 14 are slidably connected left - right in the first chute 3 through a first slider 20. The left lifting and telescopic member 4 and the right lifting and telescopic member 14 can adopt electric push rods or hydraulic push rods, etc. A first power mechanism (not shown in the drawings) capable of driving it to move can be provided on the first slider 20. The first power mechanism can adopt a walking motor or other similar power sources commonly used in the prior art that can drive a component to move. The upper parts of the left lifting and telescopic member 4 and the right lifting and telescopic member 14 are both connected to a detection contact block 7 through a spring 6. As Figure 3 and Figure 4As shown, a V-shaped groove 8 is provided inside the detection contact block 7. The inner bottom of the V-shaped groove 8 is arc-shaped. The two conductive shells 9 are connected by a connecting wire 10. An arc-shaped conductive shell 9 in contact with the circuit is provided in the V-shaped groove 8. The inner diameter of the conductive shell 9 is greater than or equal to the diameter of the circuit. A slot 18 is provided at the bottom of the detection contact block 7. The upper end of the spring 6 is connected and arranged in the slot 18. The lower end of the spring 6 is connected to the left lifting telescopic member 4 or the right lifting telescopic member 14. An insertion hole is provided in the middle of the bottom of the detection contact block 7. The end of the connecting wire 10 passes through the insertion hole of the detection contact block 7 and is connected to the conductive shell 9. By connecting the detection contact block 7 to the left lifting telescopic member or the right lifting telescopic member 14 through the spring 6, elastic adjustment can be made adaptively according to the actual height of the circuit in the height direction to ensure the contact between the conductive shell 9 and the circuit.

[0047] As Figure 3 and Figure 5 shown, a detection power supply 11, a detection instrument 12, a detection resistor 13 and a detection switch 26 are connected in series on the connecting wire 10. The detection power supply 11, the detection instrument 12, the detection resistor 13 and the detection switch 26 can be fixed on the left lifting telescopic member 4 through an L-shaped support plate 19. The detection instrument 12 can be an ammeter or a voltmeter. The detection power supply 11 uses a storage battery. The circuit between the two conductive shells 9, the connecting wire 10 and the two detection contact blocks 7 forms a loop-shaped path. A wire pressing marking member 5 is further provided on the detection contact block 7. The wire pressing marking member 5 is used to press the circuit on the detection contact block 7 and is used to mark the fault location.

[0048] In addition, as Figure 1 and Figure 3 shown, a left-right extending support rod 15 is provided on the upper part of the mobile vehicle 1. Both ends of the support rod 15 are fixed on the mobile vehicle 1 through vertical rods 16. A plurality of sliding rings 17 are slidably provided on the support rod 15. Each sliding ring 17 is connected to the connecting wire 10 through a suspension rope 25. When the left lifting telescopic member 4 and the right lifting telescopic member 14 move left and right, the connecting wire 10 can be driven to slide on the support rod 15.

[0049] In addition, as Figure 7As shown, the upper ends of the left lifting and telescoping member 4 and the right lifting and telescoping member 14 are each rotatably connected to two deflecting wheels 21 by two support rods 22. The lengths of the two support rods 22 can be different. During setting, adjustments are made according to the actual manufacturing situation. One end of the connecting wire 10 (the end close to the left lifting and telescoping member 4) is wound around the deflecting wheel 21 of the left lifting and telescoping member 4 and is deflected from the directly upper end of the left lifting and telescoping member 4 to the front side of the left lifting and telescoping member 4. The other end of the connecting wire 10 (the end close to the right lifting and telescoping member 14) is wound around the deflecting wheel 21 of the right lifting and telescoping member 14 and is deflected from the directly upper end of the right lifting and telescoping member 14 to the front side of the right lifting and telescoping member 14, thereby guiding the connecting wire 10 in the direction of the support rod 15.

[0050] In addition, a contact sensor 24 is provided in each of the conductive shells 9. The contact sensor 24 is used to detect whether the conductive shell 9 is in contact with a circuit. When the conductive shell 9 is in contact with the circuit, a signal is sent and transmitted to the left lifting and telescoping member 4 or the right lifting and telescoping member 14 on the same side as the conductive shell 9, thereby controlling the left lifting and telescoping member 4 or the right lifting and telescoping member 14 to stop extending upward. Through the setting of the contact sensor 24, after the conductive shell 9 is in contact with the circuit, the left lifting and telescoping member 4 or the right lifting and telescoping member 14 can stop extending upward in a timely manner, with stronger automation.

[0051] The wire pressing and marking member 5 includes a wire pressing plate 501. The wire pressing plate 501 is rotatably hinged to the inner inclined surface of the detection contact block 7. Specifically, a hinge plate 505 can be provided on the inner inclined surface of the detection contact block 7. A hinge shaft is fixed on the wire pressing plate 501, and the hinge shaft is rotatably hinged to the hinge plate 505, and the hinge shaft is connected to a rotary motor (schematic in the drawing) capable of driving its rotation. The connection setting method and technical principle of the rotary motor are the same as the commonly used rotary motor drive connection methods in the prior art, and the present application will not elaborate too much. Then the rotary motor can drive the hinge shaft and the wire pressing plate 501 to rotate, so as to press down the wire pressing plate 501 or open the wire pressing plate 501. A marking cavity 502 is provided inside the wire pressing plate 501, and a marking nozzle 503 is provided at the bottom of the wire pressing plate 501. The marking nozzle 503 communicates with the marking cavity 502. By setting the wire pressing and marking member 5 as the wire pressing plate 501 and providing the marking cavity 502 and the marking nozzle 503 on the wire pressing plate 501, the wire pressing plate 501 can press the circuit to prevent the circuit from detaching from the conductive shell 9. In addition, the setting of the marking cavity 502 and the marking nozzle 503 can place marking ink in the marking cavity 502, so as to mark the fault location. During specific maintenance, only the fault location needs to be repaired. In order to increase the accuracy, repair detection can also be carried out within a certain range to the left and right of the fault location.

[0052] In addition, an elastic pressing block 504 is provided at the bottom of the wire pressing plate 501, and an arc-shaped groove is provided at the bottom of the elastic pressing block 504. By providing the elastic pressing block 504 at the bottom of the wire pressing plate 501, hard pressing of the circuit can be avoided, so that when the detection contact block 7 moves, the circuit can be prevented from being pulled off.

[0053] In addition, a liftable wire clamping member 2 is provided at each of the left and right ends of the mobile vehicle 1. The two wire clamping members 2 are located outside the left lift telescopic member 4 and the right lift telescopic member 14. The wire clamping member 2 is used to clamp and fix the wire. Specifically, as Figure 6 shown, the wire clamping member 2 includes a lift rod 201. The lift rod 201 can be an electric push rod. A U-shaped plate 202 is provided at the top of the lift rod 201. An arc-shaped clamping plate 204 is connected to each of the front and rear sides inside the U-shaped plate 202 through a horizontal telescopic rod 203. The horizontal telescopic rod 203 can be an electric push rod. The two arc-shaped clamping plates 204 are symmetrically arranged and enclose a ring to clamp the wire. Then the lift rod 201 can drive the arc-shaped clamping plate 204 to move up and down, so that the arc-shaped clamping plate 204 can just face the wire. Then the horizontal telescopic rod 203 drives the two arc-shaped clamping plates 204 to approach each other to clamp the wire, and the structure is simple. In addition, a second chute 27 is provided on each of the left and right sides of the first chute 3 on the mobile vehicle 1. The wire clamping member 2 is slidably connected to the second chute 27 through a second slider 28. A power mechanism for driving its movement is provided on the wire clamping member 2. The power mechanism can be a walking motor or other power sources commonly used in the prior art that can drive the movement of components. When detecting the wire in segments, after the wire is clamped, the two wire clamping members 2 can be slid outwards to tighten the segmented wire, which is convenient for detecting the movement of the detection contact block 7.

[0054] The present invention is provided with a mobile vehicle 1, on which a slidable left lifting telescopic member 4 and a slidable right lifting telescopic member 14 are arranged. A detection contact block 7 is arranged on each of the left lifting telescopic member 4 and the right lifting telescopic member 14. A V-shaped groove 8 is arranged on the detection contact block 7, and a conductive shell 9 is arranged in the V-shaped groove 8. The two conductive shells 9 are connected by a connecting wire 10, and a detection power supply 11, a detection instrument 12, a detection resistor 13 and a detection switch 26 are connected in series on the connecting wire 10. When detecting a line fault, the left lifting telescopic member 4 and the right lifting telescopic member 14 can be adjusted to the state with the maximum distance first, and then the left lifting telescopic member 4 and the right lifting telescopic member 14 are adjusted upward so that the conductive shell 9 on the contact block can contact the wire. At this time, the line segment between the two detection contact blocks 7, the connecting wire 10, the detection power supply 11, the detection resistor 13 and the detection instrument 12 can form a loop. By turning on the detection switch 26, the loop can be energized. By observing whether there is a numerical display on the detection instrument 12, it can be judged whether there is a problem with the line segment between the two detection contact blocks 7. And by this method, the whole line can be preliminarily detected quickly and step by step in sections. During the detection process, if it is found that there is a problem with the line segment between any two detection contact blocks 7, then the left lifting telescopic member 4 and the right lifting telescopic member 14 are adjusted by moving, and then the fault location between this segmented line is specifically searched one by one. Overall, first detect the line in sections one by one to find the approximate problem section of the problem line, and then search for the fault location of the problematic segmented line, which can greatly improve the detection efficiency of the line and the search efficiency of the fault location.

[0055] In addition, two line clamping members 2 are arranged on the mobile vehicle 1. When searching for the fault location of the segmented line, they can be used to clamp the line to avoid the dragging and shaking of the whole line caused by the movement of the contact block and improve the movement stability of the contact block. In addition, with the arrangement of the line clamping members 2, after clamping the line, the mobile vehicle 1 can be translated, so as to pull the line to one side, so as to detect the fixing firmness of the line, and by translating the mobile vehicle 1, the sag state of the line can be changed or measured.

[0056] A detection method using a microgrid network detection device for detection includes the following steps:

[0057] (1) Preparation: Adjust the line clamping members 2 and the detection contact blocks 7 downward to a height lower than the line; then place the mobile vehicle 1 parallel to the lower part of the right end of the line; slide the left lifting telescopic member 4 to the extreme left position, and slide the right lifting telescopic member 14 to the extreme right position. At this time, the line between the two detection contact blocks 7 is the segmented detection section;

[0058] (2) Initial inspection of the segmented inspection section: adjust the left lifting telescopic member 4 and the right lifting telescopic member 14 upwards so that the conductive shell 9 in the detection contact block 7 can all contact the line, and the line pressing marker 5 blocks the upper side of the line. Turn on the detection switch 26 and observe the condition of the detection instrument 12. If the data of the detection instrument 12 is normal, it means that the section of the line between the two detection contact blocks 7 is normal. Then proceed to step (3a) to inspect the next segmented inspection section of the line. If the data of the detection instrument 12 is abnormal, it means that there is a problem with the section of the line between the two detection contact blocks 7. Then proceed to step (3b) to conduct a specific fault location search for this section of the segmented inspection section until the entire line is inspected.

[0059] (3a) Testing the next segmented detection section of the line: retract the left lifting telescopic member 4 and the right lifting telescopic member 14 downward, then move the moving vehicle 1 to the left by the horizontal length of the segmented detection section, and then repeat step (2) to complete the initial testing of the next segmented detection section of the line;

[0060] (3b) Finding the fault location in the segmented detection section: Move the two line clamping members 2 upward and clamp the line, then slide the left lifting and telescopic member 4 to the right. When the detection instrument 12 returns to normal, the left side of the detection contact block 7 on the left is the first fault location. The line pressing marker 5 marks the first fault location. In this segmented detection section, the right side of the first fault location is the normal section, and the left side of the first fault location is the first section to be eliminated. Then, the first section to be eliminated is fault-finded.

[0061] Fault finding of the first section to be eliminated: move the right lifting telescopic member 14 to the left side of the first fault zone, move the left lifting telescopic member 4 to the left side of the right lifting telescopic member 14, and then gradually move the left lifting telescopic member 4 to the left. If the detection instrument 12 is always normal during the process of the left lifting telescopic member 4 moving to the left to the extreme position, it means that the first section to be eliminated is all normal, the first section to be eliminated has been found, and return to step (3a) to perform the next segment detection section detection; if the value of the detection instrument 12 is abnormal when the left lifting telescopic member 4 moves to a certain position to the left, at this time, the position close to the right side of the left detection contact block 7 is the second fault zone. The line marking member 5 marks the second fault location. Then, in this first section to be eliminated, the right side of the second fault location is a normal section, that is, the section between the first fault location and the second fault location is normal, and the left side of the second fault location is the second section to be eliminated. Then, the second section to be eliminated is fault-finded according to the method of fault-finding for the first section to be eliminated, and this process is repeated until all the fault locations of the segmented detection section are completely found. That is, when the last section to be eliminated is fault-detected, the left lifting and telescopic member 4 can be moved to the left to the extreme position. The last section to be eliminated is found, and the process returns to step (3a) to detect the line of the next segmented detection section.

[0062] For the detection method using a microgrid network detection device, the left lifting telescopic member 4 and the right lifting telescopic member 14 are adjusted outward to the maximum distance, and the heights of the left lifting telescopic member 4 and the right lifting telescopic member 14 are adjusted so that the conductive shell 9 on the detection contact block 7 can contact the line. The line between the two detection contact blocks 7 is the segmented detection section. Then, the connecting wire 10, the conductive shell 9, the detection power supply 11, the detection resistor 13, the detection instrument 12, and the line between the two detection contact blocks 7 form a loop, so that the overall state of the line between the two detection contact blocks 7 can be detected for faults. If there is no problem with this segmented detection section of the line, directly translate the mobile vehicle 1, and then detect the next segmented detection section. According to this method, until the entire line is detected. By detecting the line in the way of segmenting it one by one, the approximate fault area of the line can be quickly located. If a problem is found in a certain segmented detection section of the line during the segmented detection process, then the specific fault location within this segmented detection section can be searched for;

[0063] In addition, when searching for the specific fault location, through the cooperation of moving the left lifting telescopic member 4 and the right lifting telescopic member 14, first find the normal section and the first fault location, then exclude the normal section, and then detect the first section to be excluded to detect whether there are other fault locations in the first section to be excluded, and search for the second section to be excluded according to this method, and so on, until the left lifting telescopic member 4 moves to the extreme left position and the entire first section to be excluded is completely searched, so as to quickly find out multiple fault locations within the segmented detection section one by one, and mark the fault locations, which is convenient for subsequent maintenance and reduces the operation steps.

[0064] Overall, the method of first performing segmented detection on the line and then searching for the specific fault location can greatly improve the efficiency of finding the fault location of the entire line. And during the process of the mobile vehicle 1 moving for segmented detection one by one, the detection contact block 7 is retracted downward and then extended upward for detection, avoiding the ineffective wear of the line caused by the detection contact block 7 always contacting and moving on the line, or the damage to the line caused by the pulling of the line.

[0065] In addition, it should be noted that: the immediate left side of the above-mentioned detection contact block 7, in actual implementation, refers to the line within the range from the left edge of the detection contact block 7 to the right edge of the detection contact block 7 at a point x (x is 15 cm) to the left; the immediate right side of the detection contact block 7, in actual implementation, refers to the line within the range from the right edge of the detection contact block 7 to the left edge of the detection contact block 7 at a point x (x is 15 cm) to the right, as specifically shown in Figure 8 shown.

[0066] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. It should be understood that the specific embodiments described herein are only used to understand the present invention and are not used to limit the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

Claims

1. A microgrid network detection device for detecting microgrid lines, including a mobile vehicle, characterized in that: At both the left and right ends of the moving vehicle, there is a liftable line clamping member provided. The line clamping member is used to clamp and fasten the line. On the upper part of the moving vehicle, there is a first chute that extends left and right. Inside the first chute, a left lift telescopic member and a right lift telescopic member are slidably connected left and right. At the upper parts of the left lift telescopic member and the right lift telescopic member, a detection contact block is connected through a spring. Inside the detection contact block, there is a V-shaped groove. The inner bottom of the V-shaped groove is arc-shaped. Inside the V-shaped groove, there is an arc-shaped conductive shell that contacts the line. The inner diameter of the conductive shell is greater than or equal to the diameter of the line. Between the two conductive shells, they are connected through a connecting wire. A detection power supply, a detection instrument, a detection resistor, and a detection switch are connected in series on the connecting wire. The lines between the two conductive shells, the connecting wire, and the two detection contact blocks form a looped circuit. On the detection contact block, there is also a wire pressing marking member, which is used to press the line on the detection contact block and mark the fault location. The wire pressing marking member includes a wire pressing plate. The wire pressing plate is rotatably hinged on the inner inclined surface of the detection contact block. Inside the wire pressing plate, there is a marking cavity. At the bottom of the wire pressing plate, there is a marking nozzle, and the marking nozzle communicates with the marking cavity. At the bottom of the wire pressing plate, there is an elastic pressing block, and at the bottom of the elastic pressing block, there is an arc-shaped groove. The line clamping member includes a lifting rod. At the top of the lifting rod, there is a U-shaped plate. Inside the U-shaped plate, on both the front and rear sides, an arc-shaped clamping plate is connected through a horizontal telescopic rod. The two arc-shaped clamping plates are symmetrically arranged and enclose a ring to clamp the line. On the moving vehicle, on both the left and right sides of the first chute, there is a second chute. The line clamping member is slidably connected left and right with the second chute through a second slider. Inside each conductive shell, there is a contact sensor, which is used to detect whether the conductive shell is in contact with the line. When the conductive shell is in contact with the line, it emits a signal and transmits it to the left lift telescopic member or the right lift telescopic member on the same side as the conductive shell, so as to control the left lift telescopic member or the right lift telescopic member to stop extending upward.

2. The microgrid network detection device according to claim 1, wherein: On the upper part of the moving vehicle, there is a support rod that extends left and right. Both ends of the support rod are fixed on the moving vehicle through vertical rods. On the support rod, there are multiple sliding rings slidably arranged. Each sliding ring is connected to the connecting wire through a suspension rope.

3. The microgrid network detection device according to claim 1, characterized in that: At the bottom of the detection contact block, there is a slotted opening. The upper end of the spring is connected and arranged inside the slotted opening, and the lower end of the spring is connected to the left lift telescopic member or the right lift telescopic member.

4. A microgrid network detection device according to claim 1, characterized in that: In the middle of the bottom of the detection contact block, there is an insertion hole. The end of the connecting wire passes through the insertion hole of the detection contact block and is connected to the conductive shell.

5. A microgrid network detection device according to claim 1, characterized in that: At the upper ends of the left lift telescopic member and the right lift telescopic member, two redirecting wheels are rotatably connected through two support rods. One end of the connecting wire is wound around the redirecting wheel of the left lift telescopic member and redirected from the directly upper end of the left lift telescopic member to the front side of the left lift telescopic member. The other end of the connecting wire is wound around the redirecting wheel of the right lift telescopic member and redirected from the directly upper end of the right lift telescopic member to the front side of the right lift telescopic member.

6. A detection method for detecting using a microgrid network detection device as described in claim 1, characterized in that: Including the following steps: (1) Preparation: Adjust the line clamp and the detection contact block downward to a height lower than the line; then place the mobile vehicle parallel to the lower right end of the line; slide the left lifting telescopic part to the left to the limit position, and slide the right lifting telescopic part to the right to the limit position. At this time, the line between the two detection contact blocks is a segmented detection section; (2) Initial inspection of the segmented inspection section: adjust the left lifting telescopic member and the right lifting telescopic member upward so that the conductive shells in the detection contact blocks can all contact the line, and the line pressing marker blocks the upper side of the line. Turn on the detection switch and observe the detection instrument. If the detection instrument data is normal, it means that the section of the line between the two detection contact blocks is normal. Then proceed to step (3a) to inspect the next segmented inspection section of the line. If the detection instrument data is abnormal, it means that there is a problem with the segmented inspection section between the two detection contact blocks. Then proceed to step (3b) to conduct a specific fault location search for this segmented inspection section until the entire line is inspected. (3a) Testing the next segmented inspection section of the line: retract the left lifting telescopic member and the right lifting telescopic member downward, then move the moving vehicle to the left by the horizontal length of the segmented inspection section, and then repeat step (2) to complete the initial testing of the next segmented inspection section of the line; (3b) Finding the fault location within the segmented detection section: Move the two line clamping parts upward and clamp the line, then slide the left lifting and telescopic part to the right. When the detection instrument returns to normal, the left side of the detection contact block on the left is the first fault location. The line pressing marking part marks the first fault location. In this segmented detection section, the right side of the first fault location is the normal section, and the left side of the first fault location is the first section to be eliminated. Then, the first section to be eliminated is fault-finding; Fault finding of the first section to be eliminated: move the right telescopic lifting member to the left side of the first fault location, move the left telescopic lifting member to the left side of the right telescopic lifting member, and then gradually move the left telescopic lifting member to the left. If the detection instrument is always normal during the process of the left telescopic lifting member moving to the left to the extreme position, it means that the first section to be eliminated is completely normal and the first section to be eliminated has been found. Return to step (3a) to perform the detection of the next segmented detection section. If the detection instrument value is abnormal when the left telescopic lifting member moves to a certain position to the left, at this time, the position close to the right side of the left detection contact block is the second fault location, and the line pressing marker marks the second fault location. In this first section to be eliminated, the right side of the second fault location is the normal section, and the left side of the second fault location is the second section to be eliminated. Then, the second section to be eliminated is fault-finded according to the method of fault-finding of the first section to be eliminated. Repeat this process until all the fault locations of the segmented detection section are found. Return to step (3a) to test the next segmented detection section line.

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