Line loss monitoring and positioning system and positioning method

Abstract

The invention provides a line loss monitoring and positioning system and positioning method, and relates to the technical field of line loss monitoring. The line loss monitoring and positioning system comprises a measuring table, a length measuring mechanism and a resistance measuring mechanism, a limiting groove is formed in the rear end of the upper surface of the measuring table, the resistance measuring mechanism is arranged at the front end of the upper surface of the measuring table, and the length measuring mechanism is arranged in the limiting groove. The front end and the rear end, close to the limiting groove, of the upper surface of the measuring table are each provided with a dial gauge, the length measuring mechanism comprises two limiting blocks, and the middle of the inner wall of one side of the limiting groove is rotationally connected with a driving bidirectional threaded rod. According to the line loss monitoring and positioning system and the positioning method provided by the invention, the resistance of electric wires used by power transmission lines with different diameters can be conveniently measured through the adjustable sliding block provided with the measuring block, and the electric wires used by the power transmission lines with different lengths can be conveniently measured through the adjustable limiting block.

Description

Technical Field

[0001] The present invention relates to the technical field of line loss monitoring, and in particular to a line loss monitoring positioning system and a positioning method. Background Art

[0002] Line loss monitoring refers to the process of measuring the power loss generated by the transmission lines used by the distribution equipment in the power system during the power transmission process. Through line loss monitoring, the circuit loss of the transmission line can be checked in time, and then the problems of the transmission line can be discovered in time to prevent the use of transmission lines with high losses, thereby reducing the waste of electricity in the transmission process and achieving energy conservation and efficient utilization.

[0003] However, the existing line loss monitoring is performed by calculating and analyzing the statistical data of electricity meters used by residents after the transmission lines are installed and used. In addition, there is a lack of line loss monitoring of the transmission lines before they are installed, which leads to the discovery of line loss problems after the transmission lines are put into operation, which may require expensive modification costs to repair. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the present invention provides a line loss monitoring and positioning system and positioning method, which solves the problem that the prior art line loss monitoring lacks line loss monitoring of the transmission line before the transmission line is installed, resulting in line loss problems being discovered only after the transmission line is put into operation, and expensive modification costs may be required to repair them.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a line loss monitoring and positioning system, including a measuring platform, a length measuring mechanism and a resistance measuring mechanism, a limiting groove is provided on the rear end of the upper surface of the measuring platform, a resistance measuring mechanism is provided on the front end of the upper surface of the measuring platform, a length measuring mechanism is provided inside the limiting groove, and scales are provided on the front and rear ends of the upper surface of the measuring platform close to the limiting groove, respectively, the length measuring mechanism includes two limiting blocks, a driving bidirectional threaded rod is rotatably connected to the middle part of the inner wall of one side of the limiting groove, a No. 1 vertical plate is fixedly connected to the front end of the upper surface of the limiting block, and a No. 1 vertical plate is fixedly connected to the rear end of the upper surface of the limiting block. The ends are fixedly connected with a No. 2 vertical plate, and a No. 1 slide groove is respectively provided in the middle of the outer wall of one side of the No. 1 vertical plate near the center of the limit block, and a No. 2 slide groove is respectively provided in the middle of the outer wall of one side of the No. 2 vertical plate near the center of the limit block, and a No. 2 slide groove is respectively provided, and the middle part of the bottom surface of the No. 1 slide groove is respectively fixedly connected with a guide rod, and the upper end of the guide rod is respectively fixedly connected with the top surface of the No. 1 slide groove, and the middle part of the bottom surface of the No. 2 slide groove is respectively rotatably connected with an adjusting two-way threaded rod, and the upper end of the outer wall of the adjusting two-way threaded rod is respectively threadedly connected with the No. 1 slide rod, and the lower end of the outer wall of the adjusting two-way threaded rod is respectively threadedly connected with the No. 2 slide rod;

[0008] The resistance measuring mechanism comprises an ohmmeter detection box, the lower surface of the ohmmeter detection box is fixedly connected to the measuring table, one side of the upper surface of the ohmmeter detection box is electrically connected to the positive terminal, the other side of the upper surface of the ohmmeter detection box is electrically connected to the negative terminal, the negative terminal and the positive terminal are respectively fixedly connected to a detection bus, the detection bus is respectively fixedly connected to a detection disk on the side away from the ohmmeter detection box, a plurality of cavities are respectively opened in the middle of the outer wall of the side of the detection disk close to the ohmmeter detection box, the inside of the cavities are respectively slidably connected with sliders, the outer wall of the slider on the side away from the center of the detection disk is respectively fixedly connected to a reset spring, and the outer wall of the slider on the side close to the center of the ohmmeter detection box is respectively fixedly connected to a measuring block;

[0009] Through the above technical scheme, the resistance and length of the wires used in the transmission line are measured by the resistance measuring mechanism and the length measuring mechanism respectively, and the diameter of the wires used in the transmission line through which the actual current passes is calculated using the resistance law, and finally the diameter d1 of the wires used in the transmission line measured by the vernier caliper is subtracted to determine whether the allowable deviation range of the diameter of the wires and cables specified in GB / T3953 is ±1%d, which is 90% of the national standard wire diameter.

[0010] Preferably, the side of the reset spring away from the center of the detection disk is fixedly connected to the inner wall of the cavity away from the center of the detection disk, and the outer wall of the measuring block away from the center of the ohmmeter detection box is electrically connected to the detection branch line, and the detection branch lines are electrically connected to the detection bus.

[0011] Through the above technical solution, a load is applied to the slider through the reset spring, so that the slider slides inside the cavity, and then the measuring block fits the two ends of the wires used in the transmission line, the ohmmeter detection box is started, and the current is transmitted to multiple measuring blocks through the detection bus and the detection branch line, and circulates the wires used in the transmission line.

[0012] Preferably, the lower ends of the outer walls of the guide rods are slidably connected to the second slide bar, and a power port is provided at the lower part of the outer wall on the other side of the ohmmeter detection box;

[0013] Through the above technical solution, an external power source is connected through the power port and sufficient power is provided to the ohmmeter detection box.

[0014] Preferably, a No. 1 clamping block is fixedly connected to the middle of the lower surface of the No. 1 slide bar, and a No. 2 clamping block is fixedly connected to the middle of the upper surface of the No. 1 slide bar;

[0015] Through the above technical solution, the wires used in the power transmission line are clamped by the No. 1 clamp block and the No. 2 clamp block.

[0016] Preferably, the first slide bar slides inside the first slide groove and the second slide groove respectively, and the second slide bar slides inside the first slide groove and the second slide groove respectively;

[0017] Through the above technical solution, the moving directions of the No. 1 slide bar and the No. 2 slide bar are restricted by the No. 1 slide groove and the No. 2 slide groove.

[0018] Preferably, the upper ends of the adjusting bidirectional threaded rods respectively pass through the second slide slot to the outside of the second vertical plate and are fixedly connected with a torsion block;

[0019] Through the above technical solution, the torsion block rotates and adjusts the bidirectional threaded rod, so that the first slide bar and the second slide bar move inside the first vertical plate and the second vertical plate respectively.

[0020] Preferably, the middle parts of the front end and rear end outer walls of the limit block are respectively fixedly connected with indicator blocks;

[0021] Through the above technical solution, the difference L between the two indicating blocks and the scale is read through the values ​​of the indicating block and the scale.

[0022] Preferably, the four corners of the lower surface of the measuring platform are fixedly connected with support legs, and the other side of the driving bidirectional threaded rod passes through the limit groove to the outside of the measuring platform and is fixedly connected with a rotating handle;

[0023] Through the above technical solution, the bidirectional threaded rod is driven by rotating the handle.

[0024] Preferably, the limit blocks slide inside the limit grooves, both sides of the driving bidirectional threaded rod body are respectively threadedly connected with the limit blocks, and the upper ends of the outer walls of the guide rod body are respectively slidably connected with the No. 1 slide bar;

[0025] Through the above technical solution, the two limit blocks are driven to rotate by rotating the bidirectional threaded rod so as to slide inside the limit groove, so that the wires used for the power transmission line clamped by the No. 1 clamp block and the No. 2 clamp block are straightened.

[0026] Preferably, the positioning method of the line loss monitoring and positioning system comprises the following steps:

[0027] S1: Use a vernier caliper to measure the diameter d1 of the wire used in the transmission line, and obtain the resistivity ρ of the wire used in the transmission line from the technical specifications of the product provided by the wire manufacturer;

[0028] S2: placing the two ends of the wire used for the transmission line between the first clamp block and the second clamp block respectively, and then using the twist block to rotate and adjust the bidirectional threaded rod, so that the first slide bar and the second slide bar move inside the first vertical plate and the second vertical plate respectively, so that the first clamp block and the second clamp block clamp the wire used for the transmission line;

[0029] S3: The bidirectional threaded rod is driven by rotating the handle, so that the two limit blocks slide inside the limit groove, so that the wires used for the power transmission line clamped by the No. 1 clamp block and the No. 2 clamp block are straightened, and the difference L between the two indicator blocks and the scale is read;

[0030] S4: placing the two ends of the electric wires used in the transmission line inside the multiple measuring blocks provided on the two detection disks, and starting the ohmmeter detection box, transmitting the current to the multiple measuring blocks through the detection bus and the detection branch line, and flowing through the electric wires used in the transmission line, thereby obtaining the measured resistance R of the electric wires used in the transmission line;

[0031] S5: Calculate the cross-sectional area S of the wire used in the transmission line through the resistance law R = ρL / S, and calculate the area of ​​the circle formula S = πr 2 , calculate the radius r2 of the wire used in the transmission line, and then calculate the diameter d2 of the wire used in the transmission line;

[0032] S6: Compare the difference between d1 and d2. If the allowable deviation range of the diameter of wires and cables specified in GB / T3953 is ±1%d, which is 90% of the national standard wire diameter, then the wires used in the transmission line can be used normally. If it does not comply with the allowable deviation range of the diameter of wires and cables specified in GB / T3953, which is ±1%d, which is 90% of the national standard wire diameter, then the wires used in the transmission line cannot be used normally.

[0033] (III) Beneficial effects

[0034] The present invention provides a line loss monitoring and positioning system and positioning method, which have the following beneficial effects:

[0035] 1. The present invention provides a line loss monitoring and positioning system and positioning method. The resistance and length of the wires used in the transmission line are respectively measured by a resistance measuring mechanism and a length measuring mechanism, and the actual current diameter of the wires used in the transmission line is calculated using the resistance law. Finally, the diameter d1 of the wires used in the transmission line measured by a vernier caliper is subtracted to determine whether the allowable deviation range of the diameter of the wires and cables specified in GB / T3953 is ±1% d, which is 90% of the national standard wire diameter.

[0036] 2. The present invention provides a line loss monitoring and positioning system and positioning method, which facilitates the measurement of the resistance of wires used in transmission lines of different diameters through an adjustable slider provided with a measuring block, and facilitates the measurement of wires used in transmission lines of different lengths through an adjustable limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the main structure of the present invention from a first viewing angle;

[0038] Figure 2 is a schematic diagram of the main structure of the present invention from a second viewing angle;

[0039] Figure 3 It is a partial cross-sectional structural schematic diagram of the length measuring mechanism of the present invention;

[0040] Figure 4 for Figure 2 The enlarged view of point A in the middle;

[0041] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0042] in,

[0043] 1. Measuring table; 2. Support legs; 3. Limiting grooves;

[0044] 4. Length measuring mechanism; 401. Limit block; 402. Indicator block; 403. Driving bidirectional threaded rod; 404. Turning handle; 405. No. 1 vertical plate; 406. No. 1 slideway; 407. Guide rod; 408. No. 2 vertical plate; 409. No. 2 slideway; 410. Adjusting bidirectional threaded rod; 411. Twist block; 412. No. 1 slideway; 413. No. 1 clamping block; 414. No. 2 slideway; 415. No. 2 clamping block; 416. Scale;

[0045] 5. Resistance measuring mechanism; 501. Ohmmeter test box; 502. Power port; 503. Negative terminal; 504. Positive terminal; 505. Detection bus; 506. Detection disk; 507. Detection branch line; 508. Cavity; 509. Reset spring; 510. Slider; 511. Measuring block. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0047] like Figure 1-5 As shown, an embodiment of the present invention provides a line loss monitoring and positioning system, including a measuring platform 1, a length measuring mechanism 4 and a resistance measuring mechanism 5. A limiting groove 3 is provided at the rear end of the upper surface of the measuring platform 1, and a resistance measuring mechanism 5 is provided at the front end of the upper surface of the measuring platform 1. The length measuring mechanism 4 is provided inside the limiting groove 3. The front end and the rear end of the upper surface of the measuring platform 1 near the limiting groove 3 are respectively provided with scales 416. The length measuring mechanism 4 includes two limiting blocks 401. A driving bidirectional threaded rod 403 is rotatably connected to the middle part of the inner wall of one side of the limiting groove 3. A first vertical plate 405 is fixedly connected to the front end of the upper surface of the limiting block 401, and a second vertical plate 408 is fixedly connected to the rear end of the upper surface of the limiting block 401. A No. 1 slide groove 406 is respectively provided in the middle of the outer wall of one side of the plate 405 near the center of the limit block 401, and a No. 2 slide groove 409 is respectively provided in the middle of the outer wall of one side of the No. 1 vertical plate 408 near the center of the limit block 401, and a guide rod 407 is respectively fixedly connected to the middle of the inner bottom surface of the No. 1 slide groove 406, and the upper end of the guide rod 407 is respectively fixedly connected to the top surface of the No. 1 slide groove 406, and the middle of the inner bottom surface of the No. 2 slide groove 409 is respectively rotatably connected with an adjusting bidirectional threaded rod 410, and the upper end of the outer wall of the rod body of the adjusting bidirectional threaded rod 410 is respectively threadedly connected with a No. 1 slide rod 412, and the lower end of the outer wall of the rod body of the adjusting bidirectional threaded rod 410 is respectively threadedly connected with a No. 2 slide rod 414;

[0048] The resistance measuring mechanism 5 comprises an ohmmeter detection box 501, the lower surface of the ohmmeter detection box 501 is fixedly connected to the measuring platform 1, one side of the upper surface of the ohmmeter detection box 501 is electrically connected to a positive terminal 504, the other side of the upper surface of the ohmmeter detection box 501 is electrically connected to a negative terminal 503, the negative terminal 503 and the positive terminal 504 are respectively fixedly connected to a detection bus 505, the detection bus 505 is respectively fixedly connected to a detection disk 506 on the side away from the ohmmeter detection box 501, the detection disk 506 is respectively provided with a plurality of cavities 508 in the middle of the outer wall of the side close to the ohmmeter detection box 501, the inside of the cavity 508 is respectively slidably connected to a slider 510, the outer wall of the slider 510 on the side away from the center of the detection disk 506 is respectively fixedly connected to a reset spring 509, and the outer wall of the slider 510 on the side close to the center of the ohmmeter detection box 501 is respectively fixedly connected to a measuring block 511;

[0049] The adjustable slider 510 provided with the measuring block 511 facilitates the measurement of the resistance of the electric wires used in the power transmission lines of different diameters, and the adjustable limit block 401 facilitates the measurement of the electric wires used in the power transmission lines of different lengths.

[0050] The side of the return spring 509 away from the center of the detection disk 506 is fixedly connected to the inner wall of the cavity 508 away from the center of the detection disk 506, and the outer wall of the measuring block 511 away from the center of the ohmmeter detection box 501 is electrically connected to the detection branch line 507, and the detection branch line 507 is electrically connected to the detection bus 505;

[0051] A load is applied to the slider 510 through the return spring 509, so that the slider 510 slides inside the cavity 508, and then the measuring block 511 is attached to the two ends of the wires used in the transmission line, the ohmmeter detection box 501 is started, and the current is transmitted to multiple measuring blocks 511 through the detection bus 505 and the detection branch line 507, and circulates the wires used in the transmission line.

[0052] The lower ends of the outer walls of the guide rods 407 are slidably connected to the second slide rods 414, and the lower part of the outer wall of the other side of the ohmmeter detection box 501 is provided with a power port 502;

[0053] An external power source is connected via the power port 502 to provide sufficient power for the ohmmeter detection box 501 .

[0054] A first clamping block 413 is fixedly connected to the middle of the lower surface of the first slide bar 412, and a second clamping block 415 is fixedly connected to the middle of the upper surface of the first slide bar 412;

[0055] The first clamp block 413 and the second clamp block 415 clamp the electric wires used in the power transmission line.

[0056] The first slide bar 412 slides inside the first slide groove 406 and the second slide groove 409 respectively, and the second slide bar 414 slides inside the first slide groove 406 and the second slide groove 409 respectively;

[0057] The moving directions of the first slide bar 412 and the second slide bar 414 are limited by the first slide groove 406 and the second slide groove 409 .

[0058] The upper ends of the adjusting bidirectional threaded rods 410 respectively pass through the second slide slots 409 to the outside of the second vertical plate 408 and are fixedly connected with the torsion blocks 411;

[0059] The twist block 411 rotates and adjusts the bidirectional threaded rod 410 to move the first slide bar 412 and the second slide bar 414 inside the first vertical plate 405 and the second vertical plate 408 respectively.

[0060] The middle of the outer wall of the front end and the rear end of the limit block 401 are respectively fixedly connected with an indicating block 402;

[0061] The difference L between the two indicating blocks 402 and the scale 416 is read by the numerical values ​​of the indicating block 402 and the scale 416 .

[0062] The four corners of the lower surface of the measuring platform 1 are fixedly connected with support legs 2, and the other side of the driving bidirectional threaded rod 403 passes through the limit slot 3 to the outside of the measuring platform 1 and is fixedly connected with a rotating handle 404;

[0063] The bidirectional threaded rod 403 is driven by rotating the handle 404 .

[0064] The limit blocks 401 slide inside the limit grooves 3, driving the two sides of the bidirectional threaded rod 403 to be threadedly connected to the limit blocks 401 respectively, and the upper ends of the outer walls of the guide rods 407 are slidably connected to the first slide bar 412 respectively;

[0065] By driving the bidirectional threaded rod 403 to rotate, the two limiting blocks 401 slide inside the limiting groove 3, so that the first clamping block 413 and the second clamping block 415 clamp the wires used in the power transmission line and straighten them.

[0066] The positioning method of the line loss monitoring and positioning system comprises the following steps:

[0067] S1: Use a vernier caliper to measure the diameter d1 of the wire used in the transmission line, and obtain the resistivity ρ of the wire used in the transmission line from the technical specifications of the product provided by the wire manufacturer;

[0068] S2: Place the two ends of the electric wire used for the power transmission line between the first clamp block 413 and the second clamp block 415 respectively, and then use the twist block 411 to rotate and adjust the bidirectional threaded rod 410, so that the first slide bar 412 and the second slide bar 414 move inside the first vertical plate 405 and the second vertical plate 408 respectively, so that the first clamp block 413 and the second clamp block 415 clamp the electric wire used for the power transmission line;

[0069] S3: The bidirectional threaded rod 403 is driven to rotate by the turning handle 404, so that the two limit blocks 401 slide inside the limit groove 3, so that the first clamp block 413 and the second clamp block 415 clamp the wire used for the power transmission line to be straightened, and the difference L between the two indicator blocks 402 and the scale 416 is read;

[0070] S4: placing the two ends of the electric wires used in the power transmission line inside the multiple measuring blocks 511 provided on the two testing trays 506, and starting the ohmmeter testing box 501, transmitting the current to the multiple measuring blocks 511 through the testing bus 505 and the testing branch line 507, and flowing through the electric wires used in the power transmission line, thereby obtaining the measured resistance R of the electric wires used in the power transmission line;

[0071] S5: Calculate the cross-sectional area S of the wire used in the transmission line through the resistance law R = ρL / S, and calculate the area of ​​the circle formula S = πr 2 , calculate the radius r2 of the wire used in the transmission line, and then calculate the diameter d2 of the wire used in the transmission line;

[0072] S6: Compare the difference between d1 and d2. If the allowable deviation range of the diameter of wires and cables specified in GB / T3953 is ±1%d, which is 90% of the national standard wire diameter, then the wires used in the transmission line can be used normally. If it does not comply with the allowable deviation range of the diameter of wires and cables specified in GB / T3953, which is ±1%d, which is 90% of the national standard wire diameter, then the wires used in the transmission line cannot be used normally.

[0073] Working principle: When using the line loss monitoring and positioning system, first, use a vernier caliper to measure the diameter d1 of the wire used in the transmission line, and obtain the resistivity ρ of the wire used in the transmission line through the technical specifications of the products provided by the wire manufacturer. Secondly, place the two ends of the wire used in the transmission line between the No. 1 clamp block 413 and the No. 2 clamp block 415, and then use the torsion block 411 to rotate and adjust the bidirectional threaded rod 410, so that the No. 1 slide bar 412 and the No. 2 slide bar 414 move inside the No. 1 vertical plate 405 and the No. 2 vertical plate 408, respectively, so that the No. 1 clamp block 413 and the No. 2 clamp block 415 clamp the wire used in the transmission line, and then, the bidirectional threaded rod 403 is driven by the turning handle 404 to make the two limit The positioning block 401 slides inside the limiting groove 3, so that the No. 1 clamping block 413 and the No. 2 clamping block 415 clamp the wire used in the power transmission line and straighten it, and read the difference L between the two indicating blocks 402 and the scale 416. Then, the two ends of the wire used in the power transmission line are respectively placed inside the multiple measuring blocks 511 set on the two detection disks 506, and the ohmmeter detection box 501 is started, and the current is transmitted to the multiple measuring blocks 511 through the detection bus 505 and the detection branch line 507, and flows through the wire used in the power transmission line, so as to obtain the measured resistance R of the wire used in the power transmission line, and then, through the resistance law R = ρL / S, the cross-sectional area S of the wire used in the power transmission line is calculated, and through the area formula of the circle S = πr 2 , calculate the radius r2 of the wire used in the transmission line, and then calculate the diameter d2 of the wire used in the transmission line. Finally, compare the difference between d1 and d2. If it meets the requirements of GB / T3953 that the diameter deviation range of wires and cables is ±1%d, that is, 90% of the national standard wire diameter, then the wires used in the transmission line can be used normally. If it does not meet the requirements of GB / T3953 that the diameter deviation range of wires and cables is ±1%d, that is, 90% of the national standard wire diameter, then the wires used in the transmission line cannot be used normally.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A line loss monitoring and positioning system, comprising a measuring platform (1), a length measuring mechanism (4) and a resistance measuring mechanism (5), characterized in that: A limit groove (3) is provided at the rear end of the upper surface of the measuring platform (1), a resistance measuring mechanism (5) is provided at the front end of the upper surface of the measuring platform (1), a length measuring mechanism (4) is provided inside the limit groove (3), and scales (416) are provided at the front end and the rear end of the upper surface of the measuring platform (1) near the limit groove (3), respectively. The length measuring mechanism (4) comprises two limit blocks (401), a driving bidirectional threaded rod (403) is rotatably connected to the middle part of the inner wall of one side of the limit groove (3), a first vertical plate (405) is fixedly connected to the front end of the upper surface of the limit block (401), a second vertical plate (408) is fixedly connected to the rear end of the upper surface of the limit block (401), and the first vertical plate (405) is located near the center of the limit block (401). A first slide groove (406) is respectively provided in the middle of the outer wall of one side, and a second slide groove (409) is respectively provided in the middle of the outer wall of the second vertical plate (408) near the center of the limit block (401). A guide rod (407) is respectively fixedly connected to the middle of the inner bottom surface of the first slide groove (406), and the upper end of the guide rod (407) is respectively fixedly connected to the top surface of the inner side of the first slide groove (406). An adjusting bidirectional threaded rod (410) is respectively rotatably connected to the middle of the inner bottom surface of the second slide groove (409). The upper end of the outer wall of the rod body of the adjusting bidirectional threaded rod (410) is respectively threadedly connected to the first slide rod (412), and the lower end of the outer wall of the rod body of the adjusting bidirectional threaded rod (410) is respectively threadedly connected to the second slide rod (414); The resistance measuring mechanism (5) comprises an ohmmeter detection box (501), the lower surface of the ohmmeter detection box (501) is fixedly connected to the measuring platform (1), one side of the upper surface of the ohmmeter detection box (501) is electrically connected to a positive electrode terminal (504), the other side of the upper surface of the ohmmeter detection box (501) is electrically connected to a negative electrode terminal (503), the negative electrode terminal (503) and the positive electrode terminal (504) are respectively fixedly connected to a detection bus (505), and the detection bus (505) is far away from the ohmmeter detection box ( A detection disk (506) is fixedly connected to one side of the detection disk (506), a plurality of cavities (508) are respectively opened in the middle of the outer wall of the detection disk (506) close to the ohmmeter detection box (501), a slider (510) is slidably connected inside the cavities (508), a reset spring (509) is fixedly connected to the outer wall of the slider (510) on the side away from the center of the detection disk (506), and a measuring block (511) is fixedly connected to the outer wall of the slider (510) on the side close to the center of the ohmmeter detection box (501).

2. A line loss monitoring and positioning system according to claim 1, characterized in that: The side of the return spring (509) away from the center of the detection disk (506) is fixedly connected to the inner wall of the cavity (508) away from the center of the detection disk (506), and the outer wall of the measuring block (511) away from the center of the ohmmeter detection box (501) is electrically connected to the detection branch line (507), and the detection branch line (507) is electrically connected to the detection bus (505).

3. A line loss monitoring and positioning system according to claim 1, characterized in that: The lower ends of the outer walls of the guide rods (407) are slidably connected to the second slide rod (414) respectively, and a power port (502) is provided at the lower part of the outer wall on the other side of the ohmmeter detection box (501).

4. A line loss monitoring and positioning system according to claim 1, characterized in that: A first clamping block (413) is fixedly connected to the middle of the lower surface of the first slide bar (412), and a second clamping block (415) is fixedly connected to the middle of the upper surface of the first slide bar (412).

5. A line loss monitoring and positioning system according to claim 1, characterized in that: The first slide bar (412) slides inside the first slide groove (406) and the second slide groove (409) respectively, and the second slide bar (414) slides inside the first slide groove (406) and the second slide groove (409) respectively.

6. A line loss monitoring and positioning system according to claim 1, characterized in that: The upper ends of the adjusting bidirectional threaded rods (410) respectively pass through the second slide grooves (409) to the outside of the second vertical plate (408) and are fixedly connected to the torsion blocks (411).

7. A line loss monitoring and positioning system according to claim 1, characterized in that: The middle parts of the front end and rear end outer walls of the limit block (401) are respectively fixedly connected with indicator blocks (402).

8. A line loss monitoring and positioning system according to claim 1, characterized in that: The four corners of the lower surface of the measuring platform (1) are fixedly connected to support legs (2), and the other side of the driving bidirectional threaded rod (403) passes through the limit groove (3) to the outside of the measuring platform (1) and is fixedly connected to a rotating handle (404).

9. A line loss monitoring and positioning system according to claim 1, characterized in that: The limit blocks (401) slide inside the limit grooves (3), both sides of the rod body of the driving bidirectional threaded rod (403) are respectively threadedly connected to the limit blocks (401), and the upper ends of the outer walls of the rod body of the guide rod (407) are respectively slidably connected to the No. 1 sliding rod (412).

10. The positioning method of a line loss monitoring and positioning system according to claim 1, characterized in that: The following steps are involved: S1: Use a vernier caliper to measure the diameter d1 of the wire used in the transmission line, and obtain the resistivity ρ of the wire used in the transmission line from the technical specifications of the product provided by the wire manufacturer; S2: placing the two ends of the electric wire used in the power transmission line between the first clamp block (413) and the second clamp block (415), and then using the twist block (411) to rotate and adjust the bidirectional threaded rod (410), so that the first slide bar (412) and the second slide bar (414) move inside the first vertical plate (405) and the second vertical plate (408), respectively, so that the first clamp block (413) and the second clamp block (415) clamp the electric wire used in the power transmission line; S3: The bidirectional threaded rod (403) is driven to rotate by the turning handle (404), so that the two limit blocks (401) slide inside the limit groove (3), so that the first clamp block (413) and the second clamp block (415) clamp the electric wire used for the power transmission line and straighten it, and read the difference L between the two indicator blocks (402) and the scale (416); S4: placing the two ends of the electric wires used in the power transmission line inside the multiple measuring blocks (511) provided on the two testing plates (506), and starting the ohmmeter testing box (501), transmitting the current to the multiple measuring blocks (511) through the testing bus (505) and the testing branch line (507), and flowing the electric wires used in the power transmission line, thereby obtaining the measured resistance R of the electric wires used in the power transmission line; S5: Calculate the cross-sectional area S of the wire used in the transmission line through the resistance law R = ρL / S, and calculate the area of ​​the circle formula S = πr 2 , calculate the radius r2 of the wire used in the transmission line, and then calculate the diameter d2 of the wire used in the transmission line; S6: Compare the difference between d1 and d2. If the allowable deviation range of the diameter of wires and cables specified in GB / T3953 is ±1%d, which is 90% of the national standard wire diameter, then the wires used in the transmission line can be used normally. If it does not comply with the allowable deviation range of the diameter of wires and cables specified in GB / T3953, which is ±1%d, which is 90% of the national standard wire diameter, then the wires used in the transmission line cannot be used normally.

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