CN104049155B - Electrical equipment detection line and detection method based on automatic guidance carrier vehicle - Google Patents

Abstract

The invention discloses a power equipment detection assembly line and detection method based on an automatic guided transport vehicle. There are different test instruments, the central control room is equipped with a central control computer, and the test instruments at each test station are connected to the central control computer by means of communication; at least one automatic guided transport vehicle, which carries the power for the test The equipment samples, under the control of the central control computer in the central control room, run between each test station according to a certain test procedure, and conduct various tests on the power equipment samples carried by the automatic guided transport vehicle. The test data obtained by the test instruments at the station is sent back to the central control computer in the central control room by means of communication for summary. Compared with the traditional test method of traditional electric equipment, the detection efficiency of the present invention is higher, and the labor intensity of test personnel is smaller.

Description

A detection line and detection method for power equipment based on automatic guided transport vehicles

technical field

The invention relates to the technical field of electric equipment detection, in particular to an automatic guided transport vehicle-based electric equipment detection assembly line and detection method.

Background technique

Referring to Figure 1 to Figure 8, the automatic guided vehicle (AGV) used for handling on the production line has a large load capacity, and at the same time it can realize full-scale travel such as straight travel, horizontal travel, oblique travel, any curved movement, and zero-turn radius rotation under heavy loads. ability to move. The automatic guided transport vehicle can adopt a variety of control methods, such as wired control, wireless remote control and industrial computer automatic control, etc., and can also choose a variety of positioning methods for positioning, such as video tracking positioning, IGPS positioning and magnetic nail tracking position.

At present, the traditional test method of power equipment is: personnel or vehicles carry test instruments to the site or to the warehouse to conduct various tests on fixed power equipment. Since power equipment involves multiple performance tests, for the same power equipment, testers need Carry a variety of instruments, and every time a test project is completed, the wiring needs to be replaced to meet the needs of different test projects. In addition, in the case of limited space on site or in the warehouse, it is necessary to change the site or use lifting equipment to remove the test product and replace the next test product every time a test product is completed. Therefore, the traditional test mode not only requires a lot of equipment , Connecting and changing lines repeatedly, instruments and equipment need manual and crane handling, the test process is labor-intensive and the test efficiency is slow. Moreover, the data obtained from each test project needs to be manually input into the computer, and the calculation and summary are performed by the computer. Not only will there be errors in the data entry method, but the efficiency is also slow.

In order to improve the test efficiency, some places currently use fixed track-type reprinted test samples to carry out flow tests along the pre-laid track. Although it improves the test efficiency and reduces the labor intensity of the test personnel, it still has the following problems: 1. Track The laying workload is heavy and the construction period is long, which generally takes 2 to 3 months; 2. Once a fault point occurs, the entire test system will be paralyzed; 3. Once the track is laid, some newly added test items cannot be tested in the original test. The system is upgraded on the basis of the system, and the cost of transformation is huge, and the transformation period is also long.

Contents of the invention

One of the technical problems to be solved by the present invention is to provide an automatic guided vehicle-based power equipment inspection line for many technical problems in the test method for batch quality sampling inspection of various types and specifications of power equipment.

The second technical problem to be solved by the present invention is to provide a detection method for electrical equipment based on an automatic guided transport vehicle.

The technical problem to be solved by the present invention can be realized by the following technical solutions:

A power equipment testing assembly line based on automatic guided transport vehicles, including:

A test site, in which a plurality of test stations and a central control room are arranged, each test station is equipped with different test instruments, the central control room is provided with a central control computer, and the test instruments of each test station are connected with the central control room. The central control computers in the control room are connected by means of communication.

At least one automatic guided transport vehicle, the automatic guided transport vehicle carries the tested electrical equipment test products, and under the control of the central control computer in the central control room, it runs between each test station according to a certain test procedure. The tested electrical equipment samples carried by the automatic guided transport vehicle carry out various tests, and the test instruments at each test station transmit the obtained test data back to the central control computer in the central control room for summary by means of communication.

In a preferred embodiment of the present invention, the communication method is a wired communication method or a wireless communication method.

In a preferred embodiment of the present invention, a power equipment test product waiting station and a power equipment test product inspected station are also set in the test site, and the power equipment test product waiting station and power A crane is installed in the station where the equipment test product has been inspected. When the automatic guided transport vehicle runs to the station where the electric equipment test product is to be inspected, the tested electric equipment test product is hoisted to the automatic guided transport vehicle by the crane. When the guided transport vehicle runs to the position where the power equipment test product has been inspected, the tested power equipment test product is hoisted from the automatic guided transport vehicle by a crane.

In a preferred embodiment of the present invention, the various tests at least include voltage ratio measurement and connection group label verification test items, winding DC resistance measurement test items, temperature rise test items, short circuit impedance and load loss test items, no-load Current and no-load loss measurement test items, on-load tap-changer test items, lightning full-wave impact test items, winding insulation resistance test items, iron core, clip insulation resistance test items, induction withstand voltage test items, externally applied withstand voltage test items Test items, partial discharge test items.

In a preferred embodiment of the present invention, the power equipment includes at least power transformers, reactors, voltage transformers, current transformers, high-voltage switchgear, circuit breakers, combination appliances, cable branch boxes, ring network cabinets, pole-mounted Switches, isolating switches and grounding switches, complete sets of shunt capacitors, complete sets of arc suppression coils.

In a preferred embodiment of the present invention, the central control room is set at one end of the test field, and the power equipment sample to-be-inspected station and the power equipment sample inspected station are set at the other end of the test field; The location is set between the central control room and the station where the power equipment sample is to be inspected and the station where the power equipment sample has been inspected.

In a preferred embodiment of the present invention, the test station, the station for the power equipment sample to be inspected and the station for the power equipment sample to be inspected are arranged in parallel in two rows, with a transportation channel in the middle.

In a preferred embodiment of the present invention, each test station includes a safety fence, and an equipment access gate is arranged on the side of the safety fence facing the transportation passage, and the equipment access gate is connected with the central control in the central control room. Computer control connection; a wiring prompt screen is provided on one side of the complete fence, and the wiring prompt screen is connected to the central control computer signal in the central control room; a shelving area is provided in the middle of the safety fence; Each test station is connected by a detection channel, and the part of the detection channel extending into the test station is supported above the test station by the detection channel support frame; the part of the detection channel extending into the test station is set There are test instruments and a test line switching device, and the test line switching device is connected to the central control computer in the central control room; a test area control panel is installed on the detection channel support frame, and the test area control panel is connected to the Central control computer signal connection in the central control room.

A method for detecting electrical equipment based on an automatic guided transport vehicle, comprising the steps of:

1. Hoisting steps of the tested electrical equipment samples

In this step, the power equipment sample to be inspected is hoisted to the power equipment sample waiting station or directly hoisted on the sample tray of the power equipment sample waiting station;

2. The steps of inputting the basic information of the tested electric equipment

2.1. Staff use mobile terminals or fixed terminals to create or call equipment inspection task sheets, enter the basic information of the tested electrical equipment test products in the equipment inspection task sheets, and then send them to the central control computer in the central control room by means of communication. The measurement and control software in the central control computer automatically generates a test plan according to the type and specification of the power equipment to be tested, and then sends it to the mobile terminal or fixed terminal through communication. Select the test items according to the actual requirements of the test, save the final test plan, generate the final test task list of the tested power equipment sample, and send it to the central control computer in the central control room through communication, and print out the list containing the tested power equipment at the same time. A label with information on the type and specification of the test product and the final test protocol;

2.2. The staff paste the label generated in step 2.1 on the tested electric equipment in the station where the electric equipment is to be tested;

2.3. According to the test tasks, the central control computer in the central control room arranges the automatic guided transport vehicle server to generate the transportation path; the automatic guided transport vehicle server uses communication to send movement trajectory commands to the automatic guided transport vehicle;

3. The automatic guided transport vehicle transports the power equipment under test and transports the test product to the test station.

3.1. The automatic guided transport vehicle runs to the station where the power equipment test product is to be inspected as its starting position;

3.2. When the test starts, the tested electrical equipment samples in the power equipment sample waiting station are hoisted onto the automatic guided transport vehicle; or the automatic guided transport vehicle receives the operation instructions from the automatic guided transport vehicle server, Move under the test product tray according to the preset trajectory, and the server of the automatic guided transport vehicle sends a lifting command to the automatic guided transport vehicle, and lifts the test product tray loaded with the tested electric equipment test product to the ground and puts it on the automatic on the guided transport vehicle;

3.3. After step 3.2 is executed, the AGV server sends a moving target command to the AGV, and the AGV transports the power equipment under test to a test station along the running track according to the command. Wait for the test connection; or after step 3.2 is executed, the AGV server sends a moving target command to the AGV, and the AGV transports the power equipment under test to a certain location along the running track according to the command. In a test station, in the test station, the lifting platform of the automatic guided transport vehicle lowers the test product tray to the test product tray storage area in the test station to wait for wiring, and the automatic guided transport vehicle withdraws from the test station Stand by or perform other test tasks in the transportation channel;

4. The test process steps of the tested electrical test product

4.1. The central control computer in the central control room reads the information in the label on the tested power equipment sample through the fixed reading device or mobile reading device installed in the test station, and confirms that the test station The test items in the test station; after confirmation, display the test wiring diagram by setting the wiring prompt display in the test station, and allow the staff to enter the test station for wiring;

4.2. After the staff enters the test station, the central control computer in the central control room controls the test line switching device in the test station to automatically drop the test line of the relevant test items according to the test items, and the wiring personnel display according to the wiring prompts. screen for wiring;

4.3. After the staff completes the wiring, leave the test station, press the "test start" confirmation button on the control panel of the test area of the test station, and the central control computer in the central control room confirms the information. The measurement and control software in the central control computer conducts tests according to the preset test process;

4.4. After the test of the test station is completed, the central control computer in the central control room will automatically issue an instruction to notify the staff that the test station needs to be withdrawn. After the staff receives or sees the instruction, enter the test station Inside, release the test line on the tested electrical equipment sample; after completing the line withdrawal, the staff leave the test station, and press the "test end" confirmation button on the test area control panel of the test station, the test line The switching device automatically retracts and resets;

4.5. When the test of a certain test station is completed, the central control computer in the central control room sends the next operation instruction to the automatic guided transport vehicle in the test station through the automatic guided transport vehicle server to automatically guide the transport The vehicle carries the tested electrical equipment sample along the running track according to the instructions, transports the tested electrical equipment sample to the next test station, repeats the above steps 3.3 to 4.4 for the next test; or the automatic guided transport vehicle carries the tested electrical equipment According to the instruction, the test product of electric equipment runs to the inspected station of the electric equipment sample along the running track, and lifts the tested electric equipment sample from the automatic guided transport vehicle in the inspected station of the electric equipment test product; or the central The central control computer in the control room sends instructions to the idle automatic guided vehicles through the automatic guided vehicles server, and after receiving the instructions, the idle automatic guided vehicles run along the running track to the test product tray in the test station and lift the test product tray onto the idle automatic guided transport vehicle, and then the idle automatic guided transport vehicle carries the tested power equipment test product along the running track, and transports the tested power equipment test product to the next In the test station, repeat the above steps 3.3 to 4.4 for the next test; or the central control computer in the central control room sends instructions to the idle AGV through the AGV server, and the idle AGV After receiving the instruction, run along the running track to the bottom of the test product tray in the test station and lift the test product tray onto the idle automatic guided transport vehicle, and then the idle automatic guided transport vehicle carries the test object The power equipment test product runs along the running track to the power equipment test product inspected station, and the power equipment test product under test is hoisted from the automatic guided transport vehicle in the power equipment test product inspected station.

Due to the adoption of the above technical solution, the present invention applies the automatic guided transport vehicle currently used in the production line to the power equipment test. Compared with the traditional power equipment, the traditional test method has higher detection efficiency and less labor intensity for testers. Compared with the track-type power equipment test assembly line, it has the advantages of less construction work of the test site and a shorter construction period. When an automatic guided transport vehicle fails, other automatic guided transport vehicles can continue to work without affecting the test. The operation of the center. For newly added test items, the present invention has the advantages of fast upgrading and low cost.

Description of drawings

Figure 1 is a front view of an automated guided transport vehicle.

Figure 2 is a left side view of the automated guided transport vehicle.

Figure 3 is a top view of the automated guided transport vehicle.

Fig. 4 is a perspective view of an automatic guided transport vehicle.

Fig. 5 is a schematic diagram of the linear motion trajectory of the automatic guided transport vehicle.

Fig. 6 is a schematic diagram of the oblique movement trajectory of the automatic guided transport vehicle.

Fig. 7 is a schematic diagram of an arbitrary curved motion track of an automatic guided transport vehicle.

Fig. 8 is a schematic diagram of the zero turning radius turning track of the automatic guided transport vehicle.

Fig. 9 is a schematic diagram of the test site layout of the power equipment quality inspection test center of the present invention.

Fig. 10 is a schematic structural diagram of a test station in the power equipment quality inspection test center of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Referring to FIG. 1 to FIG. 8 , the automatic guided vehicle 200 used in the present invention is an automatic guided vehicle (AGV) used for handling on a production line.

The automatic guided transport vehicle 200 has a carrying capacity of 0-50 tons, and can realize omnidirectional movement capabilities such as straight travel, horizontal travel, oblique travel, any curved movement, and zero-turn radius rotation under heavy loads. The automatic guided transport vehicle 200 can adopt a variety of control methods, such as wired control, wireless remote control, and industrial computer automatic control, etc., and can also choose a variety of positioning methods for positioning, such as video tracking positioning, IGPS positioning and magnetic nail positioning. trace positioning. Therefore, the automatic guided transport vehicle 200 can be used for electric equipment testing.

When the automatic guided transport vehicle is used for the electric equipment test, referring to FIG. 9 , a test site 100 is established, and the automatic guided transport vehicle 200 can be used to form a trackless electric equipment test assembly line.

Continuing to refer to Fig. 9, eight test stations 101, 102, 103, 104, 105, 106, 107, a central control room 109, a station 110 for power equipment samples to be tested and a power equipment test station are set in the test site 100. The product inspection station 111, of course, the number of test stations can not be limited to eight, and can also be increased or decreased as required.

The central control control room 109 is set at one end of the test site 100, and the station 110 for power equipment samples to be inspected and the station 111 for power equipment test products to be inspected are set at the other end of the test site 100; eight test stations 101, 102, 103 , 104, 105, 106, 107, 108 are divided into two rows and arranged between the central control control room 109 and the station 110 for the power equipment sample to be inspected and the station 111 for the power equipment sample to be inspected. The station 110 for power equipment samples to be inspected and the test stations 101, 102, 103, 104 form a row, and the station 111 for power equipment samples to be inspected and the test stations 105, 106, 107, 108 form another row. There is a transport channel 112 between the rows of test stations.

The eight test stations 101, 102, 103, 104, 105, 106, 107, and 108 are equipped with different test instruments for different test items, such as voltage ratio measurement and connection group label verification test items, winding DC resistance measurement test test items, temperature rise test items, short-circuit impedance and load loss test items, no-load current and no-load loss measurement test items, and on-load tap-changer test items, can be used in any of the test stations 101, 102, and 106. There are transformation ratio tester, three-phase DC resistance tester, three-phase test power supply, transformer parameter tester, temperature inspection instrument, DC resistance tester, transformer parameter tester, three-phase test power supply, and on-load decomposition switch. Tester; the test instruments configured in the test stations 101, 102, and 106 are the same. The reason for this setting is that the detection workload of the distribution transformer is large, and the temperature rise test of the distribution transformer takes a long time (about 10 hours). . The configuration of three identical test stations can greatly improve the test efficiency. After the staff enters the test stations 101, 102, and 106, all the test items of the test stations can be automatically completed only by wiring once.

For the lightning full-wave impact test items, an impact test device can be installed at the test station 108; after the staff enters the test station 108, all the test items of the test station can be automatically completed as long as one wiring is performed.

For the winding insulation resistance test items, iron core, clamp insulation resistance test items, induction withstand voltage test items, externally applied withstand voltage test items, and partial discharge test items, an electronic insulation resistance meter can be set at the test station 107. Frequency conversion power supply, no partial discharge test transformer, no partial discharge voltage divider, no partial discharge variable frequency power supply, partial discharge tester, no partial discharge voltage divider (coupling capacitor), after the staff enters the test station 107, as long as Once wiring is performed, all test items of the test station can be automatically completed.

In short, the planning principle of the above-mentioned test site 100 is: the test station with a large number of tested electric equipment samples and many test items is arranged in the place where the test site 100 is set up close to the inspected station 111 of the electric equipment test product; the wiring method is similar The test items are grouped in one test station to reduce the line change time; multiple test items of the same power equipment test product are concentrated in the same test station to reduce the handling time of the power equipment test product; The test station 107 for the high voltage test such as the discharge test is set in the shielding room.

In order to quickly summarize the test data of each test station, the test instruments configured in the eight test stations 101, 102, 103, 104, 105, 106, 107, and 108 are connected to the central control computer in the central control room 109 through wired Communication methods (such as optical fiber communication, cable communication, etc.) or wireless methods (Wifi, Bluetooth, etc.) communication connection. In this way, the test data of each test station can be quickly summarized, avoiding the problems of high error rate and low efficiency in manual input.

Take the test station 101 as an example below to describe the structure of each test station in detail. Referring to FIG. 9, the test station 101 includes a safety fence 101a, and the side of the safety fence 101a facing the transport passage 112 is provided with an equipment access gate 101b. The side facing away from the transportation channel 112 is provided with a wiring access gate 101k, and the equipment access gate 101b and the wiring access gate 101k are connected to the central control computer in the central control room 109 under control.

A wiring prompt screen 101c is arranged on the left side in the complete fence 101a, and the wiring prompt screen 101c is connected with the central control computer in the central control room 109 by signal.

A test area 101d is set in the middle of the safety fence 101a, and a sample tray rest area 101e is set in the test area 101d. During the test, the sample tray 101f is placed on the sample tray rest area 101e.

Each test station is connected by a detection channel 113, and the part 113a of the detection channel 113 extending into the test station 101 is supported above the test station 101 by the detection channel support frame 101g, and the detection channel 113 extends into the part of the test station 101 113a is provided with a test instrument 300 and a test line switching device 310, and the test line switching device 310 is connected to the central control computer in the central control room 109; a test area control panel 101h is installed on the detection channel support frame 101g, and the test area control The panel 101h is signally connected to the central control computer in the central control room 109 .

The core of the present invention is that the power equipment test product is carried by an automatic guided transport vehicle 200 (see Fig. 1 to Fig. 8), and the automatic guided transport vehicle 200 is controlled by the central control computer in the central control room The test program is run among the eight test stations 101, 102, 103, 104, 105, 106, 107, and 108, and various tests are performed on the power equipment samples carried by the automatic guided transport vehicle 200.

The following describes the test process of the distribution transformer in detail:

1. Hoisting of distribution transformer test products

The truck carrying the distribution transformer test product enters the power equipment test product waiting station 110, and the crane lifts the distribution transformer test product to the power equipment test product waiting station 110 or directly hoists it at the power equipment test product waiting station 110 on the sample tray 101f.

2. Entry of basic information of distribution transformer test products

a. The staff paste the QR code sticker generated by the QR code printer on the distribution transformer test product to be inspected in the station 110 for the power equipment test product to be inspected.

b. The staff use a tablet computer to create or call an equipment inspection task list, and enter the basic information of the distribution transformer test product to be inspected in the equipment inspection task list. The measurement and control software in the central control computer in the central control room 109 performs the distribution transformer The test plan is automatically generated according to the type of test product, and the staff selects the test items according to the actual needs of the test, and saves the plan, generates the final test task list of the distribution transformer test product, and sends it to the central control computer in the central control room 109 through the wireless network middle.

c. The central control computer in the central control room 109 arranges the automatic guided transport vehicle server to generate the transport route according to the test task. The AGV server sends a movement trajectory command to the AGV 200 through a dedicated wireless signal.

3. Automated guided transport vehicles 200 to transport test products for testing

a. The starting position of the automatic guided transport vehicle 200 is at the station 110 of the power equipment sample to be inspected.

b. When the test starts, the AGV 200 receives the operation instruction from the AGV server, moves to the test product tray 101f according to the preset trajectory, and the AGV server sends the AGV 200 A lifting command is issued to lift the sample tray 101f off the ground and place it on the automatic guided transport vehicle 200 .

c. After the automatic guided transport vehicle 200 lifts the test product tray 101f and the distribution transformer, the automatic guided transport vehicle server sends a moving target instruction to the automatic guided transport vehicle 200, and the automatic guided transport vehicle 200 follows the instruction along the running track , transport the distribution transformer test sample to the safety fence 101a of the test station 101. The central control computer in the central control room 109 issues an instruction to open the equipment access gate 101b of the test station 101, and automatically guides the transport vehicle 200 into the test station 101. The lifting table of the automatic guided transport vehicle 200 lowers the test product tray 101f to the test product tray storage area 101e in the test area 101d, the automatic guided transport vehicle 200 withdraws from the test station 101, and the automatic guided transport vehicle 200 is in the transport channel 112 Standby or perform other test tasks, the equipment access gate 101b of the test station 101 is closed. (There is a warning light above the test station 101. When there is no test product at the test station 101, the green light is always on. When there is a test product entering and waiting for wiring, the warning light flashes green.)

4. Test process

a. Read the two-dimensional code information: a high-definition camera is installed on one side of the test station 101. When the test product tray 101f reaches the test position, the central control computer in the central control room 109 automatically scans the two-dimensional code information through the high-definition camera , to confirm the test items in the test station 101. The wiring prompt display screen 101c displays the test wiring diagram, and automatically opens the lock of the wiring access gate 101k in the test station 101 . The test area control panel 101h displays the current test items and prompts the wiring personnel to enter the safety fence 101a for wiring.

b. Test product wiring: When the wiring staff finds that the warning light of the test station 101 is flashing green in the safe passage, they manually open the wiring access gate 101k and enter the test station 101 for wiring. The test line switching device 310 above the test station 101 will automatically drop the relevant test lines according to the test items. The test lines have obvious signs, and the wiring personnel will perform wiring according to the wiring prompt display.

c. Start the test: After the wiring personnel complete the wiring, they leave the test station 101, manually close the wiring access gate 101k, and press the test start confirmation button on the control panel 101h of the test area. After the central control computer in the central control room 109 detects the confirmation information of the wiring access gate 101k, the equipment access gate 101b and the test area control panel 101h, it automatically closes the locking device of the wiring access gate 101k, and the measurement and control software conducts the test according to the preset test process , the warning light flashes red during the test.

d. Test product withdrawal: After the test of the test station 101 is completed, the locking device of the wiring access gate 101k is automatically opened, and the warning light flashes green, indicating that the test area needs to be withdrawn. The wiring staff manually opens the wiring access gate 101k to enter the test area, releases the distribution transformer test product test line, the wiring staff evacuates the test station 101, closes the wiring access gate 101k, and presses the test end confirmation button on the test area control panel 101h , the test line switching device 310 is automatically retracted and reset.

e. Replacement of the test area: the central control computer in the central control room 109 completes the test items according to the task list, and sends an instruction to the idle automatic guided transport vehicle 200 to move to the test station 101 under the test product tray 101f and lift it up. Move the distribution transformer test product to the test station 107 to carry out the rest of the test items.

f. For the flow of the test area, repeat steps a to e.

g. Replacing the test area: The central control computer in the central control room 109 completes the test items according to the task list, and sends an instruction to the idle automatic guided transport vehicle 200 to move to the test station 107 under the test product tray and lift it up. The electric transformer test product moves to the test station 108 to carry out the remaining test items.

h. For the flow of the test area, repeat steps a to e.

i. End of the test: when the test item has completed all the test items, the automatic guided transport vehicle 200 moves the distribution transformer test item to the inspection station 111 of the power equipment test item, and puts down the test item tray. The central control computer in the central control room 109 automatically provides and saves the test report according to the test items and test data, and prompts whether the test data is out of tolerance, and provides corresponding national standard inquiries to facilitate staff to make judgments.

5. Unloading of distribution transformer test products

At the station 111 where the power equipment has been inspected, the staff uses a crane to lift the sample to the inspected area.

See Table 1 for distribution transformer test items and testing instruments configured at each station

Table 1

Note: The detection instruments configured in test areas 101, 102, and 106 are the same. The reason for this planning is that the detection workload of distribution transformers is heavy, and the temperature rise test of distribution transformers takes a long time (about 10 hours).

Planning three test areas with the same configuration can greatly improve the detection efficiency.

Claims (7)

1. A power equipment detection assembly line based on an automatic guided transport vehicle, characterized in that it comprises: A test site, in which a plurality of test stations and a central control room are arranged, each test station is equipped with different test instruments, the central control room is provided with a central control computer, and the test instruments of each test station are connected with the central control room. The central control computers in the control room are connected by means of communication; At least one automatic guided transport vehicle, the automatic guided transport vehicle carries the tested electrical equipment test products, and under the control of the central control computer in the central control room, it runs between each test station according to a certain test procedure. The tested electrical equipment samples carried by the automatic guided transport vehicle carry out various tests, and the test instruments at each test station transmit the obtained test data back to the central control computer in the central control room for summary by means of communication; Each test station includes a safety fence, and an equipment access gate is provided on the side of the safety fence facing the transportation channel, and the equipment access gate is connected to the central control computer in the central control room; One side of the wiring prompt screen is provided with a wiring prompt screen, and the wiring prompt screen is connected with the central control computer signal in the central control room; the middle position in the safety fence is provided with a shelving area; each test station is connected through a detection channel, and the The part of the detection channel extending into the test station is supported above the test station by the detection channel support frame; the part of the detection channel extending into the test station is provided with a test instrument and a test line switching device, and the test The line switching device is controlled and connected to the central control computer in the central control room; a test area control panel is installed on the detection channel support frame, and the test area control panel is signally connected to the central control computer in the central control room; The communication method is a wired communication method or a wireless communication method. 2. The electric equipment detection assembly line based on the automatic guided transport vehicle as claimed in claim 1, characterized in that, in the test site, there is also a power equipment sample to be inspected station and a power equipment sample that has been inspected. Station, the station for the power equipment sample to be inspected and the station for the power equipment sample to be inspected are equipped with a crane. The test product is hoisted onto the automatic guided transport vehicle by a crane. When the automatic guided transport vehicle runs to the position where the power equipment test product has been inspected, the tested electric equipment test product is lifted from the automatic guided transport vehicle by a crane. 3. The power equipment detection assembly line based on automatic guided transport vehicles as claimed in claim 1, wherein said tests at least include voltage ratio measurement and coupling group label verification test items, winding DC resistance measurement test items, Temperature rise test items, short-circuit impedance and load loss test items, no-load current and no-load loss measurement test items, on-load tap-changer test items, lightning full-wave impact test items, winding insulation resistance test items, iron core, clamps Insulation resistance test items, induction withstand voltage test items, externally applied withstand voltage test items, partial discharge test items. 4. The electric equipment detection assembly line based on the automatic guided transport vehicle as claimed in claim 3, wherein the electric equipment at least comprises a power transformer, a reactor, a voltage transformer, a current transformer, a high-voltage switch cabinet, a circuit breaker Devices, combined electrical appliances, cable branch boxes, ring network cabinets, pole-mounted switches, isolating switches and grounding switches, complete sets of shunt capacitors, and complete sets of arc suppression coils. 5. The electric equipment detection assembly line based on the automatic guided transport vehicle as claimed in claim 2, characterized in that, the central control room is arranged at one end of the test field, and the electric equipment test product waiting station and the electric equipment test The inspected station is set at the other end of the test site; each test station is set between the central control room, the station to be inspected and the inspected station. 6. The electric equipment detection assembly line based on the automatic guided transport vehicle as claimed in claim 5, characterized in that, the test station and the electric equipment sample to-be-inspected station and the electric equipment sample inspected station are divided into two parts. The rows are arranged in parallel, and the middle is the transportation channel. 7. A method for detecting electrical equipment based on an automatic guided transport vehicle, comprising the steps of: 1). Hoisting steps of the tested electrical equipment samples In this step, the power equipment sample to be inspected is hoisted to the power equipment sample waiting station or directly hoisted on the sample tray of the power equipment sample waiting station; 2). The steps of inputting the basic information of the tested electric equipment 2.1). Staff use mobile terminals or fixed terminals to create or call equipment inspection task sheets, enter the basic information of the tested electrical equipment test products in the equipment inspection task sheets, and then send them to the central control computer in the central control room by means of communication , the measurement and control software in the central control computer automatically generates a test plan according to the type and specification of the tested power equipment test product, and then sends it to the mobile terminal or fixed terminal through communication, and the staff on the mobile terminal or fixed terminal Select the test items according to the actual needs of the test, save the final test plan, generate the final test task list of the tested power equipment test product, and send it to the central control computer in the central control room through communication, and print out the list containing the tested power equipment at the same time. A label with information on the type, specification and final test plan of the equipment to be tested; 2.2). The staff paste the label generated in step 2.1 on the tested electric equipment in the station to be tested; 2.3). According to the test task, the central control computer in the central control room arranges the AGV server to generate the transportation path; the AGV server sends the moving track command to the AGV by means of communication; 3). The automatic guided transport vehicle transports the tested electrical equipment and the test product to the test station. 3.1). The automatic guided transport vehicle runs to the station where the power equipment test product is to be inspected as its starting position; 3.2). When the test starts, the power equipment sample under test in the power equipment sample waiting station is hoisted to the automatic guided transport vehicle; or the automatic guided transport vehicle receives the operation command of the automatic guided transport vehicle server , move to the test product tray according to the pre-set trajectory, the automatic guided transport vehicle server sends a lifting command to the automatic guided transport vehicle, and lifts the test product tray loaded with the tested electrical equipment test product to the ground and rests on the on an automatic guided transport vehicle; 3.3). After step 3.2) is executed, the AGV server sends a moving target command to the AGV, and the AGV transports the power equipment under test to a certain test site along the running track according to the command. Wait for the test wiring in the station; or after step 3.2), the server of the automatic guided transport vehicle sends a moving target instruction to the automatic guided transport vehicle, and the automatic guided transport vehicle follows the running track according to the instruction, and moves the power equipment under test Transport to a certain test station. In the test station, the lifting platform of the automatic guided transport vehicle lowers the test product tray to the test product tray storage area in the test station to wait for wiring, and the automatic guided transport vehicle withdraws from the test station. The test station is on standby in the transportation channel or performs other test tasks; 4). The test process steps of the tested electric test product 4.1). The central control computer in the central control room reads the information in the label on the tested power equipment sample through the fixed reading device or mobile reading device installed in a certain test station, and confirms that the test station Test items in the station; after confirmation, display the test wiring diagram by setting the wiring prompt display in the test station, and allow the staff to enter the test station for wiring; 4.2). After the staff enters the test station, the central control computer in the central control room controls the test line switching device in the test station to automatically drop the test line of the relevant test items according to the test items, and the wiring personnel follow the wiring prompts Display wiring; 4.3). After the staff completes the wiring, leave the test station, press the "test start" confirmation button on the control panel of the test area of the test station, and the central control computer in the central control room confirms the information. The measurement and control software in the central control computer conducts tests according to the preset test process; 4.4). When the test of the test station is completed, the central control computer in the central control room will automatically issue an instruction to notify the staff that the test station needs to be withdrawn. After receiving or seeing the instruction, the staff will enter the test station. In the test station, remove the test line on the tested electrical equipment; after completing the withdrawal, the staff leaves the test station, and press the "test end" confirmation button on the test area control panel of the test station to test The line switching device automatically retracts and resets; 4.5). When the test of a certain test station is completed, the central control computer in the central control room sends the next operation instruction to the automatic guided transport vehicle in the test station through the automatic guided transport vehicle server, and the automatic guidance The transport vehicle carries the tested electrical equipment sample along the running track according to the instructions, transports the tested electrical equipment sample to the next test station, repeats the above steps 3.3) to 4.4) for the next test; or automatically guides the transport The vehicle carries the tested electrical equipment sample along the running track according to the instructions, and runs to the inspected station of the electrical equipment sample, and lifts the tested electrical equipment sample from the automatic guided transport vehicle in the inspected station of the electrical equipment sample ; or the central control computer in the central control room sends instructions to the idle automatic guided vehicles through the automatic guided vehicles server, and after receiving the instructions, the idle automatic guided vehicles run along the running track to the test station. Under the test product tray and lift the test product tray onto the idle automatic guided transport vehicle, and then the idle automatic guided transport vehicle carries the tested power equipment test product along the running track, and transports the tested power equipment test product In the next test station, repeat the above steps 3.3) to 4.4) for the next test; or the central control computer in the central control room sends instructions to the idle automatic guided vehicles through the automatic guided vehicles server, and the idle ones After receiving the instruction, the automatic guided transport vehicle runs along the running track to the bottom of the test product tray in the test station and lifts the test product tray to the idle automatic guided transport vehicle, and then the idle automatic guided transport vehicle The transport vehicle carries the tested electrical equipment samples along the running track, runs to the inspected station of the electrical equipment samples, and lifts the tested electrical equipment samples from the automatic guided transport vehicle in the inspected station of the electrical equipment samples.