A power distribution automation system calibrator

Abstract

The present invention relates to the technical field of power distribution verification, and discloses a power distribution automation system calibrator, which includes a calibrator body. A support module is arranged at the bottom of the calibrator body. The support module includes a bracket mechanism. The bracket mechanism includes a main bracket assembly and a sub-bracket assembly. The main bracket assembly includes a main bracket, and the sub-bracket assembly includes a sub-bracket. A first brake plate and a second brake plate are arranged at the connection between the main bracket and the sub-bracket. A retracting and releasing mechanism includes a lower mounting plate. The bracket mechanism is located at the bottom of the lower mounting plate. An upper mounting plate is rotatably mounted on the top of the lower mounting plate. A guiding retracting and releasing assembly is arranged between the upper mounting plate and the lower mounting plate. By setting multiple groups of main brackets and sub-brackets, and relying on the rotational connection between the main brackets and the sub-brackets to adaptively change to different ground surfaces, the effect of supporting on the ground with different terrains is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of distribution verification, and specifically relates to a distribution automation system calibrator. Background Art

[0002] The distribution automation system calibrator is a key device to ensure the reliable operation of the distribution automation system. It can perform accuracy verification on the data collected by devices such as smart meters and sensors in the system, test communication functions, verify protection functions, detect automation functions, and evaluate device performance. It has characteristics such as high precision, high resolution, and high sampling rate, can output standard signals, and is equipped with multiple communication interfaces.

[0003] The Chinese patent application with the authorization announcement number CN218848192U discloses an intelligent terminal test system, including a feeder terminal, a watt-hour meter calibrator, and an analog relay protection tester. A number of feeder terminals are connected to a number of analog relay protection testers in one-to-one correspondence to form a number of test branches. After the number of test branches are connected in parallel, they are connected to the same watt-hour meter calibrator, realizing multi-channel control of the watt-hour meter calibrator and the analog relay protection tester. It can simultaneously test a number of feeder terminals synchronously, improve the test efficiency of the feeder terminals, shorten the test time, and solve the problem that in the prior art, when testing a number of feeder terminals, a separate test experiment needs to be carried out for each feeder terminal. Through this setting, users do not need to move the test instrument multiple times, reducing the input of manpower and material resources, making full use of resources, and effectively overcoming the defects of the prior art.

[0004] However, this technical solution still has at least the following defects: The above solution cannot meet the application requirements for complex outdoor terrains. For example, when operating outdoors in remote areas, there may be problems such as unstable placement due to uneven terrain, which may lead to damage caused by dropping. In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a distribution automation system calibrator. By setting multiple groups of main brackets and auxiliary brackets, and relying on the rotational connection between the main brackets and the auxiliary brackets to adapt to different ground surfaces, so as to achieve the effect of supporting on the ground surfaces of different terrains; by setting sensors on each auxiliary bracket and triggering the sensors when the auxiliary brackets contact the ground, when the triggered sensors meet the support conditions, the display lights turn on to prompt the operator that the calibrator can be placed on the ground; by setting a first brake plate and a second brake plate to brake the main brackets and the auxiliary brackets, so that it can be locked and support the calibrator when placed on the ground, and at the same time meet the effect of folding the main brackets and the auxiliary brackets during storage.

[0006] The technical solution adopted by the present invention to solve its technical problems is:

[0007] A power distribution automation system calibrator, comprising a calibrator body, a support module is arranged at the bottom of the calibrator body, and the support module includes;

[0008] A bracket mechanism, a plurality of the bracket mechanisms are provided, the bracket mechanism includes a main bracket assembly and a sub-bracket assembly, the main bracket assembly includes a main bracket, the sub-bracket assembly includes a sub-bracket, and the main bracket and the sub-bracket are rotatably connected. A first brake plate and a second brake plate are arranged at the connection between the main bracket and the sub-bracket, and the first brake plate and the second brake plate are mutually extruded to fix the main bracket and the sub-bracket;

[0009] A retracting and releasing mechanism, the retracting and releasing mechanism includes a lower mounting plate, the bracket mechanism is located at the bottom of the lower mounting plate, an upper mounting plate is rotatably mounted on the top of the lower mounting plate, a guiding retracting and releasing assembly is arranged between the upper mounting plate and the lower mounting plate, and the upper mounting plate and the lower mounting plate change the rotation direction to control the retracting and releasing of the bracket mechanism by the guiding retracting and releasing assembly.

[0010] As a preferred embodiment of the present invention, a groove is formed on the main bracket, a clamping driving device is arranged inside the groove, the clamping driving device is used to drive the first brake plate to clamp the second brake plate, a pushing device is further arranged on the main bracket, and a manual driving device is arranged between the pushing device and the lower mounting plate, and the manual driving device is used to drive the pushing device to make the clamping driving device work.

[0011] As a preferred embodiment of the present invention, the clamping driving device includes a push plate, connecting rods are fixedly installed at both ends of the push plate, one end of the connecting rod movably penetrates through the main bracket and extends to the outside, a support plate is fixedly installed at one end of the connecting rod located outside the main bracket, and the first brake plate is fixedly connected with the support plate;

[0012] The pushing device includes a connecting block, an insertion plate is fixedly installed on one side of the connecting block, a push rod is fixedly installed at one end of the insertion plate, the push rod is adapted to the push plate, and an elastic sheet is installed between the connecting block and the main bracket.

[0013] As a preferred embodiment of the present invention, the pushing device further includes a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are rotatably connected. One end of the first connecting plate is rotatably connected with the connecting block, one end of the second connecting plate is rotatably connected to one end of the main bracket, and a column gear is fixedly installed at the end of the second connecting plate connected to the main bracket;

[0014] The manual driving device includes a connecting frame fixedly installed on the side of the lower mounting plate. A first mounting block is slidably installed on the connecting frame. Connectors are fixedly installed at both ends of the first mounting block. Side connecting plates are fixedly installed at the bottoms of both ends of the first mounting block. A second mounting block is fixedly installed at the bottom of the side connecting plate. A rack is fixedly installed on one side of the second mounting block, and the rack is adapted to a column gear.

[0015] As a preferred embodiment of the present invention, the auxiliary support assembly further includes a slide rod slidably installed on the auxiliary support. The second brake plate is fixedly installed at one end of the auxiliary support. A sensor is fixedly installed on the auxiliary support. A housing is fixedly installed on the top of the upper mounting plate, and a display lamp is installed on the housing.

[0016] As a preferred embodiment of the present invention, a slide rail is installed at the bottom of the lower mounting plate. A slider is slidably installed on the slide rail. The slider is rotatably connected to one end of the main support. A limiting rod is installed at one end of the main support, and the limiting rod is adapted to the slider. The limiting rod is used to limit the rotation angle of the main support. A chute is opened at the bottom of the lower mounting plate. A blocking rod is fixedly installed on the top of the slider, and the blocking rod is movably connected in the chute. A chassis is installed at the bottom of the lower mounting plate.

[0017] As a preferred embodiment of the present invention, the guiding and winding and unwinding assembly includes a guiding plate fixedly installed at the bottom of the upper mounting plate. A first hook plate and a second hook plate are respectively rotatably connected to both ends of the guiding plate. A first transmission assembly and a second transmission assembly are respectively arranged at the tops of the first hook plate and the second hook plate. The first transmission assembly and the second transmission assembly are used to control the rotation of the first hook plate and the second hook plate.

[0018] As a preferred embodiment of the present invention, the first transmission assembly includes a first bevel gear fixedly connected to the first hook plate. The second transmission assembly includes a second bevel gear fixedly connected to the second hook plate. A third bevel gear is meshed and connected to one side of both the first bevel gear and the second bevel gear. A rotating shaft is fixedly installed between the two third bevel gears, and the rotating shaft is rotatably connected to the upper mounting plate. A knob is fixedly installed at the top of the first bevel gear.

[0019] As a preferred embodiment of the present invention, a plurality of equally spaced adaptation slots are opened on the outside of the lower mounting plate. A plurality of equally spaced elastic plates are fixedly installed on the outside of the upper mounting plate, and the elastic plates are adapted to the adaptation slots.

[0020] As a preferred embodiment of the present invention, a power distribution automation system calibrator further includes a processor, and a control system for controlling the locking of the support mechanism is configured on the processor. The control system includes a detection unit, a judgment unit, and an execution unit;

[0021] The detection unit is used to obtain the working states of the sensors on each support mechanism and generate corresponding instructions based on the changes in the working states;

[0022] The judgment unit is used to judge whether the support mechanism meets the support condition, and the support condition represents the condition when the support mechanism can support the calibrator body;

[0023] The execution unit is used to control the display lamp to light up when the support condition is met.

[0024] As a preferred embodiment of the present invention, the detection unit includes a position acquisition strategy. The position acquisition strategy includes obtaining the points of the sensors on each support mechanism and the point corresponding to the center of the calibrator body, and generating a rectangular coordinate system with the point corresponding to the center of the calibrator body as the origin, and generating the position coordinates of each sensor based on the rectangular coordinate system;

[0025] The detection unit further includes a state conversion strategy. The state conversion strategy includes an initial state and a final state. The initial state represents the state when the sensor is not triggered, and the final state represents the state when the sensor is triggered. The state conversion strategy further includes generating a conversion instruction when the slide bar triggers the sensor, and based on the conversion instruction, converting the triggered sensor from the initial state to the final state.

[0026] As a preferred embodiment of the present invention, the judgment unit includes a condition acquisition strategy. The condition acquisition strategy includes a central region, and the central region represents a circle corresponding to the center point of the calibrator body as the center. The condition acquisition strategy further includes obtaining the trajectory equation corresponding to the central region based on the rectangular coordinate system, and the position coordinates of the sensor converted to the final state, and generating a straight line equation based on the position coordinates of two adjacent sensors converted to the final state;

[0027] The judgment unit further includes a condition judgment strategy. The condition judgment strategy includes calculating whether the polygon formed by the central region and the sensors converted to the final state has an intersection based on the straight line equation and the trajectory equation. If there is no intersection, generating a first-order instruction, otherwise generating an empty instruction;

[0028] The condition judgment strategy further includes obtaining the position relationship between the straight line equation and the center of the central region, and based on this, judging whether the center of the central region is inside the polygon formed by the sensors converted to the final state. If so, generating a second-order instruction, otherwise, generating an empty instruction.

[0029] As a preferred embodiment of the present invention, the execution unit includes obtaining the instructions generated by the acquisition and judgment unit. When the first-order instructions and the second-order instructions are obtained, a prompt signal is generated, and the display lamp is controlled to work based on the prompt signal. Otherwise, an empty signal is generated, and the display lamp is controlled to be in a standby state based on the empty signal.

[0030] The present invention has the following beneficial effects compared with the prior art:

[0031] By setting multiple groups of main brackets and sub-brackets, and relying on the rotational connection between the main brackets and the sub-brackets to adapt to different ground surfaces, the present invention achieves the effect of supporting on ground surfaces with different terrains.

[0032] By setting sensors on each sub-bracket and triggering the sensors when the sub-bracket contacts the ground, when the triggered sensors meet the support conditions, the display lamp lights up to prompt the operator that the calibrator can be placed on the ground.

[0033] By setting the first brake plate and the second brake plate to brake the main bracket and the sub-bracket, the present invention enables them to be locked and support the calibrator when placed on the surface, and at the same time satisfies the effect of folding the main bracket and the sub-bracket during storage. Brief Description of the Drawings

[0034] Figure 1 It is a schematic structural diagram of the open state of the bracket mechanism of a calibrator for a distribution automation system according to the present invention;

[0035] Figure 2 It is a schematic structural diagram of the retracted state of the bracket mechanism of a calibrator for a distribution automation system according to the present invention;

[0036] Figure 3 It is a schematic structural diagram of the bracket mechanism according to the present invention;

[0037] Figure 4 It is a schematic structural diagram of the sub-bracket according to the present invention;

[0038] Figure 5 It is a schematic structural diagram of the first brake plate according to the present invention;

[0039] Figure 6 It is a schematic structural diagram of the connecting block according to the present invention;

[0040] Figure 7 It is a schematic structural diagram of the first mounting block according to the present invention;

[0041] Figure 8 It is a schematic structural diagram of the column gear according to the present invention;

[0042] Figure 9 It is a schematic structural diagram of the slide rail according to the present invention;

[0043] Figure 10 Structural schematic diagram of the limit rod of the present invention;

[0044] Figure 11 Structural schematic diagram of the adaptor slot of the present invention;

[0045] Figure 12 Structural schematic diagram of the first bevel gear of the present invention;

[0046] Figure 13 Structural schematic diagram of the guide plate of the present invention;

[0047] Figure 14 Structural schematic diagram of the first hook plate and the second hook plate of the present invention;

[0048] Figure 15 Schematic diagram of the distribution coordinates of the central region and the sensor points of the present invention;

[0049] Figure 16 Schematic diagram of the process of the detection unit of the present invention;

[0050] Figure 17 Schematic diagram of the process of the judgment unit of the present invention;

[0051] Figure 18 Schematic diagram of the process of the execution unit of the present invention.

[0052] Reference numerals:

[0053] 100, calibrator body; 101, housing; 102, upper mounting plate; 103, lower mounting plate; 104, elastic plate; 105, adaptor slot;

[0054] 200, main bracket; 201, groove; 202, push plate; 203, connecting rod; 204, support plate; 205, first brake plate; 206, push rod; 207, plug plate; 208, connecting block; 209, elastic sheet; 210, first connecting plate; 211, second connecting plate; 212, limit rod;

[0055] 300, sub-bracket; 301, slide bar; 302, sensor; 303, display lamp; 304, second brake plate;

[0056] 400, slide rail; 401, slider; 402, column gear; 403, connecting frame; 404, first mounting block; 405, connecting piece; 406, side connecting plate; 407, second mounting block; 408, rack;

[0057] 500, chute; 501, stop bar; 502, guide plate; 503, first hook plate; 504, second hook plate; 505, first bevel gear; 506, second bevel gear; 507, third bevel gear; 508, rotating shaft; 509, knob;

[0058] 600, chassis;

[0059] 700, central area. Detailed implementation manner

[0060] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0061] Embodiment 1

[0062] As Figures 1 to 14 shown, a power distribution automation system calibrator includes a calibrator body 100, and a support module is provided at the bottom of the calibrator body 100. The support module includes;

[0063] Bracket mechanism, there are multiple bracket mechanisms, the bracket mechanism includes a main bracket assembly and a sub-bracket assembly, the main bracket assembly includes a main bracket 200, the sub-bracket assembly includes a sub-bracket 300, and the main bracket 200 is rotatably connected to the sub-bracket 300. A first brake plate 205 and a second brake plate 304 are provided at the connection between the main bracket 200 and the sub-bracket 300. The first brake plate 205 and the second brake plate 304 are pressed against each other to keep the main bracket 200 and the sub-bracket 300 fixed;

[0064] Retracting and releasing mechanism, the retracting and releasing mechanism includes a lower mounting plate 103. The bracket mechanism is located at the bottom of the lower mounting plate 103. An upper mounting plate 102 is rotatably mounted on the top of the lower mounting plate 103. A guiding retracting and releasing assembly is provided between the upper mounting plate 102 and the lower mounting plate 103. The upper mounting plate 102 and the lower mounting plate 103 change the rotation direction to control the retracting and releasing of the bracket mechanism by the guiding retracting and releasing assembly.

[0065] As Figure 3 , Figure 6 , Figure 7 , Figure 8 shown, in the detailed implementation manner, a groove 201 is provided on the main bracket 200, a clamping driving device is provided inside the groove 201, and the clamping driving device is used to drive the first brake plate 205 to clamp the second brake plate 304. A pushing device is also provided on the main bracket 200. A manual driving device is provided between the pushing device and the lower mounting plate 103, and the manual driving device is used to drive the pushing device to make the clamping driving device work. In this setting, using a manual driving device to drive the clamping driving device to work can save technical costs.

[0066] As Figure 3 , Figure 5 , Figure 6As shown, further, the clamping drive device includes a push plate 202. Connecting rods 203 are fixedly installed at both ends of the push plate 202. One end of each connecting rod 203 movably penetrates through the main bracket 200 and extends to the outside. A support plate 204 is fixedly installed at the end of the connecting rod 203 located outside the main bracket 200. The first brake plate 205 is fixedly connected to the support plate 204.

[0067] The pushing device includes a connecting block 208. A plug plate 207 is fixedly installed on one side of the connecting block 208. A push rod 206 is fixedly installed at one end of the plug plate 207. The push rod 206 is adapted to the push plate 202. An elastic sheet 209 is installed between the connecting block 208 and the main bracket 200. In this setting, the connecting block 208 drives the plug plate 207 to move, thereby pushing the push rod 206 into the push plate 202 and driving the push plate 202 to move. The push plate 202 drives the support plate 204 to move through the connecting rod 203, and then the first brake plate 205 clamps the second brake plate 304.

[0068] As Figure 6 、 Figure 7 As shown, further, the pushing device further includes a first connecting plate 210 and a second connecting plate 211, and the first connecting plate 210 and the second connecting plate 211 are rotatably connected. One end of the first connecting plate 210 is rotatably connected to the connecting block 208. One end of the second connecting plate 211 is rotatably connected to one end of the main bracket 200, and a column gear 402 is fixedly installed at the end of the second connecting plate 211 connected to the main bracket 200.

[0069] The manual drive device includes a connecting frame 403 fixedly installed on the side of the lower mounting plate 103. A first mounting block 404 is slidably installed on the connecting frame 403. Connecting members 405 are fixedly installed at both ends of the first mounting block 404. Side connecting plates 406 are fixedly installed at the bottoms of both ends of the first mounting block 404. A second mounting block 407 is fixedly installed at the bottom of the side connecting plate 406. A rack 408 is fixedly installed on one side of the second mounting block 407. The rack 408 is adapted to the column gear 402. In this setting, when the connecting member 405 is pulled downwards, the connecting member 405 drives the first mounting block 404 and the side connecting plate 406 to move downwards, and then drives the rack 408 to move downwards through the second mounting block 407. While the rack 408 moves downwards, it drives the second connecting plate 211 to rotate through meshing with the column gear 402.

[0070] As Figure 3 、 Figure 4As shown, further, the auxiliary support assembly further includes a slide bar 301, the slide bar 301 is slidably installed on the auxiliary support 300, the second brake plate 304 is fixedly installed at one end of the auxiliary support 300, a sensor 302 is fixedly installed on the auxiliary support 300, a housing 101 is fixedly installed on the top of the upper mounting plate 102, and a display lamp 303 is installed on the housing 101. In this setting, when the display lamp 303 works, it means that the support mechanism meets the condition for supporting the calibrator, and at this time, the calibrator can be placed on the ground.

[0071] Embodiment 2

[0072] As Figure 9 、 Figure 10 、 Figure 12 As shown, in the specific implementation, a slide rail 400 is installed at the bottom of the lower mounting plate 103, a slider 401 is slidably installed on the slide rail 400, the slider 401 is rotatably connected to one end of the main support 200, a limit rod 212 is installed at one end of the main support 200, the limit rod 212 is adapted to the slider 401, and the limit rod 212 is used to limit the rotation angle of the main support 200. A chute 500 is opened at the bottom of the lower mounting plate 103, a stop rod 501 is fixedly installed at the top of the slider 401, and the stop rod 501 is movably connected in the chute 500. A chassis 600 is installed at the bottom of the lower mounting plate 103. In this setting, the main support 200 is prevented from rotating excessively by the limit rod 212 against the slider 401, avoiding too small a contact range between the bottom of the auxiliary support 300 and the ground.

[0073] As Figures 12 to 14 As shown, further, the guiding and retracting assembly includes a guiding plate 502, the guiding plate 502 is fixedly installed at the bottom of the upper mounting plate 102, a first hook plate 503 and a second hook plate 504 are respectively rotatably connected to both ends of the guiding plate 502, a first transmission assembly and a second transmission assembly are respectively arranged at the tops of the first hook plate 503 and the second hook plate 504, and the first transmission assembly and the second transmission assembly are used to control the rotation of the first hook plate 503 and the second hook plate 504. In this setting, when the first hook plate 503 is retracted and the second hook plate 504 is opened, the stop rod 501 slides along the second hook plate 504 and contacts the outer arc of the guiding plate 502, and finally disengages from one end of the guiding plate 502 close to the first hook plate 503. When the first hook plate 503 is opened and the second hook plate 504 is retracted, the stop rod 501 slides along the first hook plate 503 and contacts the inner arc of the guiding plate 502, and finally disengages from one end of the guiding plate 502 close to the second hook plate 504.

[0074] As Figure 12As shown in the figure, further, the first transmission component includes a first bevel gear 505, the first bevel gear 505 is fixedly connected to the first hook plate 503, the second transmission component includes a second bevel gear 506, the second bevel gear 506 is fixedly connected to the second hook plate 504, and a third bevel gear 507 is meshed with one side of both the first bevel gear 505 and the second bevel gear 506. A rotating shaft 508 is fixedly installed between the two third bevel gears 507, the rotating shaft 508 is rotatably connected to the upper mounting plate 102, and a knob 509 is fixedly installed on the top of the first bevel gear 505. In this setting, the knob 509 drives the first bevel gear 505 to rotate, and the first bevel gear 505 drives the second bevel gear 506 to rotate through the third bevel gear 507 and the rotating shaft 508, so that the first hook plate 503 and the second hook plate 504 rotate.

[0075] As Figure 11 shown in the figure, further, a plurality of adaptor slots 105 are arranged at equal intervals on the outer side of the lower mounting plate 103, and a plurality of elastic plates 104 are fixedly installed at equal intervals on the outer side of the upper mounting plate 102. The elastic plates 104 are adapted to the adaptor slots 105. In this setting, when the lower mounting plate 103 rotates, it will drive the elastic plates 104 to switch and move in the adaptor slots 105, so that each time the lower mounting plate 103 rotates, it can stop at a specific angle, avoiding mechanical interference between the first hook plate 503 and the second hook plate 504 and the stop lever 501 when they rotate.

[0076] Embodiment 3

[0077] As Figures 15 to 18 shown in the figure, a power distribution automation system calibrator further includes a processor, and a control system for controlling the locking of the support mechanism is configured on the processor. The control system includes a detection unit, a judgment unit, and an execution unit;

[0078] The detection unit is used to obtain the working states of the sensors 302 on each support mechanism and generate corresponding instructions based on the changes in the working states;

[0079] The judgment unit is used to judge whether the support mechanism meets the support condition, and the support condition represents the condition when the support mechanism can support the calibrator body 100;

[0080] The execution unit is used to control the display lamp 303 to light up when the support condition is met.

[0081] The detection unit includes a position acquisition strategy. The position acquisition strategy includes obtaining the positions of the sensors 302 on each support mechanism and the position corresponding to the center of the calibrator body 100, generating a rectangular coordinate system with the position corresponding to the center of the calibrator body 100 as the origin, and generating the position coordinates of each sensor 302 based on the rectangular coordinate system;

[0082] The detection unit further includes a state transition strategy, which includes an initial state and a final state. The initial state represents the state when the sensor 302 is not triggered, and the final state represents the state when the sensor 302 is triggered. The state transition strategy also includes that when the slide bar 301 triggers the sensor 302, a conversion instruction is generated, and based on the conversion instruction, the triggered sensor 302 is converted from the initial state to the final state.

[0083] The judgment unit includes a condition acquisition strategy, which includes a central region 700. The central region 700 represents a circle corresponding to the center point of the calibrator body 100 as the center of the circle. The position where the center of gravity of the calibrator is located is within the central region 700. The condition acquisition strategy also includes obtaining the trajectory equation corresponding to the central region 700 based on the rectangular coordinate system, as well as the position coordinates of the sensor 302 converted to the final state, and generating a straight line equation based on the position coordinates of two adjacent sensors 302 in the final state.

[0084] The judgment unit further includes a condition judgment strategy, which includes calculating whether there is an intersection between the central region 700 and the polygon formed by the sensor 302 converted to the final state based on the straight line equation and the trajectory equation. If there is no intersection, a first-order instruction is generated, otherwise an empty instruction is generated.

[0085] The condition judgment strategy also includes obtaining the positional relationship between the straight line equation and the center of the central region 700, and based on this, judging whether the center of the central region 700 is inside the polygon formed by the sensor 302 converted to the final state. If so, a second-order instruction is generated, otherwise an empty instruction is generated.

[0086] When the center of the central region 700 is located inside the polygon and the central region 700 does not intersect with the polygon, the central region 700 being located inside the polygon indicates that the center of gravity of the calibrator is inside the polygon. At this time, placing the calibrator on the ground will not cause tilting due to the offset of the center of gravity.

[0087] The execution unit includes obtaining the instruction generated by the judgment unit. When the first-order instruction and the second-order instruction are obtained, a prompt signal is generated, and based on the prompt signal, the display lamp 303 is controlled to work. Otherwise, an empty signal is generated, and based on the empty signal, the display lamp 303 is controlled to be in the standby state.

[0088] The implementation principle of a power distribution automation system calibrator in this embodiment is as follows: During operation, the knob 509 is rotated. The knob 509 drives the first bevel gear 505 to rotate. The first bevel gear 505 drives the second bevel gear 506 to rotate through the third bevel gear 507 and the rotating shaft 508, so that the first hook plate 503 and the second hook plate 504 rotate. The first hook plate 503 is rotated to the retracted state, and the second hook plate 504 is rotated to the open state. At this time, the mounting plate 103 is rotated as a whole.

[0089] The lower mounting plate 103 rotates while driving the entire support mechanism to rotate, and the slider 401 and the blocking rod 501 rotate. At the same time, the guide plate 502 is fixedly mounted on the bottom of the upper mounting plate 102, so that the blocking rod 501 rotates and moves outward along the slide groove 500 under the action of the second hook plate 504 and the guide plate 502, and drives the entire support mechanism to move.

[0090] During the movement of the bracket mechanism, the main bracket assembly and the auxiliary bracket assembly open under the action of gravity, and the calibrator is placed on the ground. The slide bar 301 on the auxiliary bracket 300 contracts after contacting the ground, and triggers the sensor 302. At the same time, the rotation connection between the main bracket 200 and the auxiliary bracket 300 enables it to adapt to the uneven ground. When the display light 303 lights up, it means that the conditions for supporting the calibrator are met. At this time, the connecting piece 405 is pulled downward, and the connecting piece 405 drives the first mounting block 404 and the side connecting plate 406 to move downward, and then drives the rack 408 to move downward through the second mounting block 407. , the rack 408 moves downward and drives the second connecting plate 211 to rotate by meshing with the column gear 402. The second connecting plate 211 drives the connecting block 208 to move by abutting against the first connecting plate 210. The connecting block 208 drives the plug plate 207 to move, thereby pushing the push rod 206 into the push plate 202 and driving the push plate 202 to move. The push plate 202 drives the support plate 204 to move through the connecting rod 203, thereby causing the first brake plate 205 to clamp the second brake plate 304. The main bracket 200 and the auxiliary bracket 300 are kept fixed by friction. At this time, the calibrator can be placed on the ground;

[0091] When storing, first reset the connecting piece 405 to disengage the first brake plate 205 and the second brake plate 304 from the clamping state, and rotate the knob 509 in the reverse direction to make the first hook plate 503 in the open state and the second hook plate 504 in the retracted state. At this time, flip the calibrator as a whole, and fold the auxiliary bracket assembly on the main bracket assembly, and rotate the lower mounting plate 103 as a whole in the reverse direction, so that the blocking rod 501 rotates in the opposite direction relative to the guide plate 502, and moves inward along the slide groove 500 under the action of the guide plate 502 and the first hook plate 503, thereby moving the main bracket assembly and the auxiliary bracket assembly toward the base frame 600, and making the auxiliary bracket assembly stuck in the base frame 600 during the movement to complete the storage.

[0092] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A power distribution automation system calibrator, comprising a calibrator body (100), characterized in that, A support module is provided at the bottom of the calibrator body (100), and the support module includes; A bracket mechanism, and a plurality of bracket mechanisms are provided. The bracket mechanism includes a main bracket assembly and a sub-bracket assembly. The main bracket assembly includes a main bracket (200), and the sub-bracket assembly includes a sub-bracket (300). The main bracket (200) is rotatably connected to the sub-bracket (300). A first brake plate (205) and a second brake plate (304) are provided at the connection between the main bracket (200) and the sub-bracket (300). The first brake plate (205) and the second brake plate (304) are pressed against each other to keep the main bracket (200) and the sub-bracket (300) fixed; A retracting and extending mechanism, which includes a lower mounting plate (103). The bracket mechanism is located at the bottom of the lower mounting plate (103). An upper mounting plate (102) is rotatably mounted on the top of the lower mounting plate (103). A guiding retracting and extending assembly is provided between the upper mounting plate (102) and the lower mounting plate (103). The upper mounting plate (102) and the lower mounting plate (103) change the rotation direction to control the retracting and extending of the bracket mechanism by the guiding retracting and extending assembly; The sub-bracket assembly further includes a slide rod (301). The slide rod (301) is slidably mounted on the sub-bracket (300). The second brake plate (304) is fixedly mounted at one end of the sub-bracket (300). A sensor (302) is fixedly mounted on the sub-bracket (300). A housing (101) is fixedly mounted on the top of the upper mounting plate (102), and a display lamp (303) is mounted on the housing (101); It further includes a processor, and a control system for controlling the locking of the bracket mechanism is configured on the processor. The control system includes a detection unit, a judgment unit, and an execution unit; The detection unit is used to obtain the working state of the sensors (302) on each bracket mechanism and generate corresponding instructions based on the change of the working state; The judgment unit is used to judge whether the bracket mechanism meets the support condition, and the support condition represents the condition when the bracket mechanism can support the calibrator body (100); The execution unit is used to control the display lamp (303) to light up when the support condition is met; The detection unit includes a position acquisition strategy, and the position acquisition strategy includes obtaining the points of the sensors (302) on each bracket mechanism and the point corresponding to the center of the calibrator body (100), generating a rectangular coordinate system with the point corresponding to the center of the calibrator body (100) as the origin, and generating the position coordinates of each sensor (302) based on the rectangular coordinate system; The detection unit further includes a state conversion strategy. The state conversion strategy includes an initial state and a final state. The initial state represents the state when the sensor (302) is not triggered, and the final state represents the state when the sensor (302) is triggered. The state conversion strategy further includes generating a conversion instruction when the slide rod (301) triggers the sensor (302), and converting the triggered sensor (302) from the initial state to the final state based on the conversion instruction; The judgment unit includes a condition acquisition strategy, the condition acquisition strategy includes a central region (700), the central region (700) is characterized as a circle corresponding to the center point of the calibrator body (100), the condition acquisition strategy further includes obtaining the trajectory equation corresponding to the central region (700) based on a rectangular coordinate system, and the position coordinates of the sensor (302) converted to the final state, and generating a straight line equation based on the position coordinates of two adjacent sensors (302) in the final state; The judgment unit further includes a condition judgment strategy, the condition judgment strategy includes calculating whether the polygon formed by the central region (700) and the sensor (302) converted to the final state has an intersection based on the straight line equation and the trajectory equation, if there is no intersection, generating a first-order instruction, otherwise generating an empty instruction; The condition judgment strategy further includes obtaining the positional relationship between the straight line equation and the center of the central region (700), and judging whether the center of the central region (700) is inside the polygon formed by the sensors (302) converted to the final state based on this, if so, generating a second-order instruction, otherwise, generating an empty instruction.

2. The calibration instrument for a distribution automation system according to claim 1, wherein A groove (201) is provided on the main bracket (200), a clamping driving device is arranged inside the groove (201), the clamping driving device is used to drive the first brake plate (205) to clamp the second brake plate (304), a pushing device is further arranged on the main bracket (200), a manual driving device is arranged between the pushing device and the lower mounting plate (103), and the manual driving device is used to drive the pushing device to make the clamping driving device work.

3. The calibration instrument for a distribution automation system according to claim 2, characterized in that, The clamping driving device includes a push plate (202), connecting rods (203) are fixedly installed at both ends of the push plate (202), one end of the connecting rod (203) movably penetrates through the main bracket (200) and extends to the outside, and a support plate (204) is fixedly installed at one end of the connecting rod (203) located outside the main bracket (200), and the first brake plate (205) is fixedly connected to the support plate (204); The pushing device includes a connecting block (208), a plug plate (207) is fixedly installed on one side of the connecting block (208), a push rod (206) is fixedly installed at one end of the plug plate (207), the push rod (206) is adapted to the push plate (202), and an elastic sheet (209) is installed between the connecting block (208) and the main bracket (200).

4. The calibration instrument for a distribution automation system according to claim 3, wherein The pushing device further includes a first connecting plate (210) and a second connecting plate (211), and the first connecting plate (210) and the second connecting plate (211) are rotatably connected, one end of the first connecting plate (210) is rotatably connected to the connecting block (208), one end of the second connecting plate (211) is rotatably connected to one end of the main bracket (200), and a column gear (402) is fixedly installed at the end of the second connecting plate (211) connected to the main bracket (200); The manual driving device includes a connecting frame (403) fixedly installed on the side of the lower mounting plate (103). A first mounting block (404) is slidably installed on the connecting frame (403). Connectors (405) are fixedly installed at both ends of the first mounting block (404). Side connecting plates (406) are fixedly installed at the bottoms of both ends of the first mounting block (404). A second mounting block (407) is fixedly installed at the bottom of the side connecting plate (406). A rack (408) is fixedly installed on one side of the second mounting block (407). The rack (408) is adapted to the column gear (402).

5. The calibration instrument for a distribution automation system according to claim 4, characterized in that, A slide rail (400) is installed at the bottom of the lower mounting plate (103). A slider (401) is slidably installed on the slide rail (400). The slider (401) is rotatably connected to one end of the main bracket (200). A limiting rod (212) is installed at one end of the main bracket (200). The limiting rod (212) is adapted to the slider (401). The limiting rod (212) is used to limit the rotation angle of the main bracket (200). A chute (500) is opened at the bottom of the lower mounting plate (103). A blocking rod (501) is fixedly installed at the top of the slider (401). The blocking rod (501) is movably connected in the chute (500). A bottom frame (600) is installed at the bottom of the lower mounting plate (103).

6. The calibration instrument for a distribution automation system according to claim 5, characterized in that, The guiding and retracting assembly includes a guiding plate (502). The guiding plate (502) is fixedly installed at the bottom of the upper mounting plate (102). A first hook plate (503) and a second hook plate (504) are respectively rotatably connected to both ends of the guiding plate (502). A first transmission assembly and a second transmission assembly are respectively arranged at the tops of the first hook plate (503) and the second hook plate (504). The first transmission assembly and the second transmission assembly are used to control the rotation of the first hook plate (503) and the second hook plate (504).

7. The calibration instrument for a distribution automation system according to claim 6, wherein The first transmission assembly includes a first bevel gear (505). The first bevel gear (505) is fixedly connected to the first hook plate (503). The second transmission assembly includes a second bevel gear (506). The second bevel gear (506) is fixedly connected to the second hook plate (504). A third bevel gear (507) is meshed with one side of both the first bevel gear (505) and the second bevel gear (506). A rotating shaft (508) is fixedly installed between the two third bevel gears (507). The rotating shaft (508) is rotatably connected to the upper mounting plate (102). A knob (509) is fixedly installed at the top of the first bevel gear (505).

8. A power distribution automation system calibrator according to claim 7, characterized in that, A plurality of equally spaced distribution fitting grooves (105) are opened on the outside of the lower mounting plate (103). A plurality of equally spaced distribution elastic plates (104) are fixedly installed on the outside of the upper mounting plate (102). The elastic plates (104) are adapted to the fitting grooves (105).

9. The calibration instrument for a distribution automation system according to claim 8, characterized in that The execution unit includes obtaining the instructions generated by the acquisition and judgment unit. When the first-order instructions and the second-order instructions are obtained, a prompt signal is generated, and based on the prompt signal, the display lamp (303) is controlled to work. Otherwise, an empty signal is generated, and based on the empty signal, the display lamp (303) is controlled to be in the standby state.

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