GIS knife switch on-off state indication system and method

Abstract

The application discloses a GIS switch disconnecting piece opening and closing state indication system and method. The system comprises a measurement end and a display end. The measurement end comprises a control module, a rotation detection assembly and a motor. The rotation detection assembly is provided with a through hole, and the main shaft of the switch disconnecting piece penetrates through the through hole. The main shaft of the switch disconnecting piece is provided with a positioning mark. The rotation detection assembly is mechanically connected with the motor, and the rotation of the motor drives at least part of the components in the rotation detection assembly to rotate around the main shaft. The control module is electrically connected with the rotation detection assembly and the motor. The rotation detection assembly is used for detecting the position of the positioning mark and outputting a position signal to the control module. The control module is used for outputting a pulse signal according to the position signal to control the rotation of the motor. The display end is in communication connection with the control module, and the display end is used for indicating the opening and closing state of the switch disconnecting piece according to the number of the pulse signals. Compared with the existing switch disconnecting piece indication device, the technical scheme is more widely applicable, and it is easier to judge the opening and closing position of the switch disconnecting piece.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, and in particular to a system and method for indicating the open / closed status of a GIS disconnector. Background Technology

[0002] The disconnectors of a GIS (Gas Insulated Switchgear) are enclosed in a gas chamber, making it impossible to determine their open or closed status by direct observation.

[0003] Existing technologies typically use a connector between a mass block and a sliding contact to convert the rotation of the outer crank arm of the disconnector into the sliding of the sliding contact on a resistor body, using the resistance value of the variable resistor to diagnose the open / closed state of the disconnector. However, this solution has limited applicability, only suitable for situations where the outer crank arm rotates in a vertical plane. When the outer crank arm rotates in a horizontal plane, the mass block remains in a fixed position and cannot drive the sliding contact, thus failing to activate the GIS disconnector diagnostic device and making it difficult to determine the open / closed state of the GIS disconnector. Summary of the Invention

[0004] This invention provides a system and method for indicating the open / closed status of a GIS disconnector, in order to solve the problem that existing GIS disconnector open / closed status indication devices have a limited scope of application and are difficult to determine the open / closed status of GIS disconnectors.

[0005] According to one aspect of the present invention, a GIS disconnector status indication system is provided, comprising: a measuring end and a display end;

[0006] The measuring end includes: a control module, a rotation detection component, and a motor;

[0007] The rotation detection component has a through hole, and the main shaft of the GIS disconnect switch passes through the through hole; wherein, the main shaft of the GIS disconnect switch is provided with a positioning mark;

[0008] The rotation detection component is mechanically connected to the motor, and the rotation of the motor causes at least a portion of the components in the rotation detection component to rotate around the main shaft;

[0009] The control module is electrically connected to the rotation detection component and the motor respectively; the rotation detection component is used to detect the position of the positioning mark and output a position signal to the control module, and the control module is used to output a pulse signal according to the position signal to control the rotation of the motor;

[0010] The display terminal is communicatively connected to the control module, and the display terminal is used to indicate the open / closed status of the GIS disconnector based on the number of pulse signals.

[0011] Optionally, the rotation detection component includes: a cylindrical rotation kit, a transmission unit, and a tracking unit;

[0012] The cylindrical rotating assembly includes a first assembly and a second assembly arranged coaxially; the first assembly is disposed on the inner side of the second assembly; the inner side of the first assembly has the through hole; the main shaft passes through the through hole;

[0013] The cylindrical rotating assembly also includes multiple connecting parts; the outer surface of the first assembly is mechanically connected to the inner surface of the second assembly through the connecting parts;

[0014] The second component is mechanically connected to the transmission unit. The rotation of the motor drives the transmission unit to rotate, thereby driving the cylindrical rotating component to rotate.

[0015] The tracking unit is disposed on one of the connecting parts, and the tracking unit is electrically connected to the control module.

[0016] Optionally, a plurality of conductive rings are provided on the side of the connecting portion near the second kit, and the tracking unit is provided on the side of the connecting portion near the first kit; the conductive rings are electrically connected to the tracking unit;

[0017] The rotation detection component further includes a paddle post with multiple conductive paddles on it; the first end of each conductive paddle is mechanically connected to the paddle post, and the second end of each conductive paddle is electrically connected to the conductive ring; the control module is electrically connected to the conductive ring via the conductive paddles.

[0018] Optionally, the rotation detection component further includes an annular groove;

[0019] The second kit has multiple pulleys on its top and bottom surfaces, and the cylindrical rotating kit rotates within the annular groove via the pulleys.

[0020] Optionally, the transmission unit includes a plurality of driven wheels and a driving wheel arranged coaxially, the driving wheel being mechanically connected to one of the driven wheels;

[0021] The driving wheel is coaxially arranged with the output shaft of the motor; a rotating gear is provided on the outer side of the second component; the rotating gear is mechanically connected to the driven wheel.

[0022] Optionally, the tracking unit includes an infrared transmitter, an infrared receiver, and a first control unit;

[0023] The infrared transmitter emits infrared light towards the main shaft of the GIS disconnect switch, and the infrared receiver receives the infrared reflected light from the main shaft of the GIS disconnect switch; the positioning mark absorbs part of the infrared light; the position signal includes a first position signal and a second position signal.

[0024] The first control unit outputs the first position signal to the control module when the infrared reflected light received by the infrared receiver is less than or equal to a preset threshold; the first control unit outputs the second position signal to the control module when the infrared reflected light received by the infrared receiver is greater than the preset threshold.

[0025] Optionally, the control module includes a signal transmitting unit and a second control unit; the first control unit is electrically connected to the second control unit, and the second control unit is connected to both the signal transmitting unit and the motor.

[0026] When the second control unit receives the first position signal, it outputs a pulse signal to control the motor to rotate; when the second control unit receives the second position signal, the motor stops rotating.

[0027] The signal transmitting unit is used to send an indication signal to the display terminal according to the number of pulse signals.

[0028] Optionally, the display terminal includes a signal receiving unit, a third control unit, and a display unit; the signal receiving unit is electrically connected to the third control unit, and the third control unit is electrically connected to the display unit.

[0029] The signal receiving unit is communicatively connected to the signal transmitting unit, and the signal receiving unit is used to receive the indication signal;

[0030] The third control unit is used to parse the number of pulse signals according to the indication signal and output a display signal; the display unit is used to display the open / closed status of the GIS disconnector according to the display signal.

[0031] According to another aspect of the present invention, a method for indicating the open / closed status of a GIS disconnector is provided, which is executed using the GIS disconnector open / closed status indication system described in any one of the first aspects;

[0032] The rotation detection component detects the position of the positioning mark and outputs a position signal to the control module;

[0033] The control module outputs a pulse signal based on the position signal;

[0034] The display terminal determines the open / closed state of the GIS disconnector based on the relationship between the number of pulse signals and the first preset number of pulses and the second preset number of pulses.

[0035] Optionally, before the rotation detection component detects the position of the positioning mark and outputs a position signal to the control module, the following is also included:

[0036] The GIS disconnector is controlled to be in the closed position, and the rotation detection component detects the position of the positioning mark to complete the initial positioning.

[0037] The number of pulse signals output by the control module during initial positioning is the first preset number of pulses, which is the number of pulses that the display terminal parses and stores.

[0038] The GIS disconnector is controlled to be in the open position, and the rotation detection component detects the position of the positioning mark and completes the reset.

[0039] The number of pulse signals output by the control module during the reset is the second preset number of pulses, as the display terminal parses and stores.

[0040] The technical solution provided in this embodiment of the invention sets up a measuring end and a display end separately. The measuring end is located outside the main shaft of the GIS disconnect switch, and the display end is located inside the control box. The measuring end sends position information to the control module through a rotation detection component to detect the position of the positioning mark set on the main shaft. The control module sends pulse signals to control the motor to rotate, thereby driving the rotation detection component to detect the position of the positioning mark set on the main shaft. The control module transmits the pulse signal information output during the detection process to the display end. The display end compares the number of received pulse signals with the preset number of pulses to display the opening and closing status of the GIS disconnect switch. The GIS disconnect switch opening and closing status indication system provided in this embodiment of the invention sets up a measuring end and a display end separately. Regardless of whether the rotation direction of the GIS disconnect switch main shaft is horizontal or vertical, the operator can judge the opening and closing status of the GIS disconnect switch through the display end on the control box. Compared with existing GIS disconnect switch opening and closing status indication devices, this system has a wider range of applications and makes it easier to judge the opening and closing status of the GIS disconnect switch.

[0041] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 A schematic diagram of the measuring end of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the rotation detection component of a GIS disconnector state indication system provided in an embodiment of the present invention;

[0045] Figure 3 A schematic diagram of the main shaft of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0046] Figure 4 A schematic diagram of the display terminal of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0047] Figure 5 This is a schematic diagram of the cylindrical rotating assembly of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0048] Figure 6 A schematic diagram of the rotation detection component of another GIS disconnector status indication system provided in an embodiment of the present invention;

[0049] Figure 7 A schematic diagram of the base structure of a rotation detection component of a GIS disconnector state indication system provided in an embodiment of the present invention;

[0050] Figure 8 A schematic diagram of the tracking unit of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0051] Figure 9 A schematic diagram of the control module of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0052] Figure 10 A schematic diagram of the display terminal of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0053] Figure 11 A schematic diagram of the circuit structure of the measuring terminal of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0054] Figure 12 A schematic diagram of the circuit structure of the display terminal of a GIS disconnector status indication system provided in an embodiment of the present invention;

[0055] Figure 13 A flowchart illustrating a method for indicating the open / closed status of a GIS disconnector, as provided in an embodiment of the present invention;

[0056] Figure 14 The flowchart provides another method for indicating the open / closed status of a GIS disconnector in accordance with the embodiments of the present invention. Detailed Implementation

[0057] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0058] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0059] Figure 1 A schematic diagram of the measuring end of a GIS disconnector status indication system provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the rotation detection component of a GIS disconnector state indication system provided in an embodiment of the present invention; Figure 3 A schematic diagram of the main shaft of a GIS disconnector status indication system provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the display terminal of a GIS disconnector status indication system provided in an embodiment of the present invention. See also... Figure 1 , Figure 2 , Figure 3 and Figure 4The system includes a measuring end 100 and a display end 200. The measuring end 100 includes a control module 300, a rotation detection component 400, and a motor 500. The rotation detection component 400 has a through hole 410 through which the main shaft 600 of the GIS disconnect switch passes. A positioning mark 610 is provided on the main shaft 600 of the GIS disconnect switch. The rotation detection component 400 is mechanically connected to the motor 500, and the rotation of the motor 500 drives at least some components of the rotation detection component 400 to rotate around the main shaft 600. The control module 300 is electrically connected to both the rotation detection component 400 and the motor 500. The rotation detection component 400 is used to detect the position of the positioning mark 610 and output a position signal to the control module 300. The control module 300 is used to output a pulse signal according to the position signal to control the rotation of the motor 500. The display end 200 is communicatively connected to the control module 300 and is used to indicate the open / closed state of the GIS disconnect switch according to the number of pulse signals.

[0060] Specifically, the measuring end 100 is fixedly installed outside the main shaft 600 of the GIS disconnect switch to measure the rotation of the main shaft 600; the display end 200 is installed on the control box to visually display the opening and closing status of the GIS disconnect switch. The measuring end 100 transmits the measured information to the display end 200, which then parses and displays the opening and closing status of the GIS disconnect switch. When the disconnect switch inside the GIS is opening and closing, the internal situation is not visible; what is visible is the rotation of the main shaft 600 connecting the internal and external parts. That is, the angle of rotation of the main shaft 600 corresponds to the stroke of the internal disconnect switch. The measuring end 100 includes a base and a housing. The control module 300, the rotation detection component 400, and the motor 500 are mounted on the base and encapsulated in the housing. The main shaft 600 is provided with a positioning mark 610, which can be a colored mark, a line mark, or other marking symbol. In this embodiment, the shape and color of the positioning mark 610 are not specifically limited. When the GIS knife switch rotates, it drives the main shaft 600 to rotate as well, and the positioning mark 610 also rotates accordingly. The rotation detection component 400 is used to detect the position of the positioning mark 610. The rotation detection component 400 has a hollowed-out through hole 410 inside, allowing the main shaft 600 to pass through the through hole 410. The rotation detection component 400 detects the positioning mark 610 by rotating it. Before detection, the position of the positioning mark 610 does not correspond to that of the rotation detection component 400. The rotation detection component 400 first sends a position signal to the control module 300 to start detection. The control module 300 outputs a control pulse signal to make the motor 500 rotate, thereby driving the rotation detection component 400 to rotate until the rotation detection component 400 corresponds to the positioning mark 610. The control module 300 records the number of pulses it outputs during the detection process and communicates the pulse count information to the display terminal 200. The display terminal 200 compares the number of received pulse signals with the preset number of pulses to determine the opening and closing status of the GIS disconnector and displays the result.

[0061] The technical solution provided in this embodiment of the invention sets up a measuring end and a display end separately. The measuring end is located outside the main shaft of the GIS disconnect switch, and the display end is located inside the control box. The measuring end sends position information to the control module through a rotation detection component to detect the position of the positioning mark set on the main shaft. The control module sends pulse signals to control the motor to rotate, thereby driving the rotation detection component to detect the position of the positioning mark set on the main shaft. The control module transmits the pulse signal information output during the detection process to the display end. The display end compares the number of received pulse signals with the preset number of pulses to display the opening and closing status of the GIS disconnect switch. The GIS disconnect switch opening and closing status indication system provided in this embodiment of the invention sets up a measuring end and a display end separately. Regardless of whether the rotation direction of the GIS disconnect switch main shaft is horizontal or vertical, the operator can judge the opening and closing status of the GIS disconnect switch through the display end on the control box. Compared with existing GIS disconnect switch opening and closing status indication devices, this system has a wider range of applications and makes it easier to judge the opening and closing status of the GIS disconnect switch.

[0062] Optionally, Figure 5 This is a schematic diagram of the cylindrical rotating assembly of a GIS disconnector status indication system provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 2 and 5 The rotation detection assembly 400 includes: a cylindrical rotation kit 420, a transmission unit 430, and a tracking unit 440; the cylindrical rotation kit 420 includes a first kit 421 and a second kit 422 coaxially arranged; the first kit 421 is disposed on the inner side of the second kit 422; a through hole 410 is opened on the inner side of the first kit 421; the main shaft 600 passes through the through hole 410; the cylindrical rotation kit 420 also includes multiple connecting parts 423; the outer side of the first kit 421 is mechanically connected to the inner side of the second kit 422 through the connecting parts 423; the second kit 422 is mechanically connected to the transmission unit 430, and the rotation of the motor 500 drives the transmission unit 430 to rotate, thereby driving the cylindrical rotation kit 420 to rotate; the tracking unit 440 is disposed on one of the connecting parts 423, and the tracking unit 440 is electrically connected to the control module 300.

[0063] Specifically, the first assembly 421 and the second assembly 422 are coaxially arranged cylindrical shapes, making the cylindrical rotating assembly 420 appear as two concentric circles at the bottom and top. The inner surface of the first assembly 421 has a hollowed-out through hole 410 through which the main shaft 600 passes. The outer surface of the first assembly 421 is connected to the inner surface of the second assembly 422 via multiple connecting parts 423. The multiple connecting parts 423 are symmetrically distributed, making the cylindrical rotating assembly 420 a symmetrical structure. For example, Figure 5The cylindrical rotating assembly 420 is shown to have four connecting parts 423, which are symmetrically arranged in a cross shape. The outer surface of the second assembly 422 is mechanically connected to the motor 500 via a transmission unit 430. A tracking unit 440 is fixedly mounted on one of the connecting parts 423. The control module 300 is electrically connected to both the tracking unit 440 and the motor 500 (not shown in the figure). During detection, the tracking unit 440 sends a position signal to the control module 300. The control module 300 sends a pulse signal to the motor 500 based on the received position signal. The rotation of the motor 500 drives the transmission unit 430 to rotate, thereby driving the cylindrical rotating assembly 420 to rotate. This causes the tracking unit 440 to follow the rotation of the cylindrical rotating assembly 420 to detect the position of the positioning mark 610.

[0064] Optionally, Figure 6 This is a schematic diagram of the rotation detection component of another GIS disconnector status indication system provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 5 and Figure 6 A plurality of conductive rings 450 are provided on the side of the connecting part 423 near the second kit 422, and a tracking unit 440 is provided on the side of the connecting part 423 near the first kit 421; the conductive rings 450 are electrically connected to the tracking unit 440; the rotation detection assembly 400 also includes a paddle post 460, on which a plurality of conductive paddles 461 are provided; the first end of the conductive paddle 461 is mechanically connected to the paddle post 460, and the second end of the conductive paddle 461 is electrically connected to the conductive rings 450; the control module 300 is electrically connected to the conductive rings 450 through the conductive paddles 461.

[0065] Specifically, the connecting portion 423 has multiple grooves on the side near the second assembly 422. These grooves facilitate the fixed mounting of the conductive ring 450 on the connecting portion 423, allowing the conductive ring 450 to rotate with the rotating detection assembly. For example, Figure 5The connecting portion 423 has three grooves on the side near the second assembly 422, each groove containing a conductive ring 450. A tracking unit 440 is located on the side of the connecting portion 423 near the first assembly 421, bringing the tracking unit 440 close to the through hole 410 for easy detection of the positioning mark 610 on the spindle 600. The conductive ring 450 is made of conductive material, and the tracking unit 440 is electrically connected to the conductive ring 450 via a wire. A paddle post 460, made of non-conductive material, is also fixedly mounted on the base of the rotation detection assembly 400. Multiple conductive paddles 461 are mounted on the paddle post 460. The first end of each conductive paddle 461 is fixedly connected to the paddle post 460, and the second end of the conductive paddle 461 is slidably electrically connected to the corresponding conductive ring 450. When the cylindrical rotating assembly 420 rotates, it causes the conductive ring 450 on the connecting portion 423 to rotate together. The conductive lever 461 has a certain degree of elasticity, which minimizes the resistance to the rotation of the cylindrical rotating assembly 420 when the conductive ring 450 rotates. The control module 300 is electrically connected to the conductive lever 461, thereby realizing the electrical connection between the control module 300 and the tracking unit 440, so that the position signal output by the tracking unit 440 is sent to the control module 300.

[0066] Optionally, Figure 7 This is a schematic diagram of the base structure of a rotation detection component of a GIS disconnector status indication system provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 5 and Figure 7 The rotation detection component 400 also includes an annular groove 470; the top and bottom surfaces of the second component 422 are provided with multiple pulleys 424, and the cylindrical rotating component 420 rotates in the annular groove via the pulleys 424.

[0067] Specifically, the middle part of the base is a hollow area A, through which the main shaft 600 passes. An annular groove 470 is provided around the hollow area A. Multiple pulleys 424 are provided on the top and bottom surfaces of the second assembly 422. The radius of the annular groove 470 is equal to the radius of the second assembly 422, allowing the pulleys 424 to be positioned within the annular groove 470, enabling the cylindrical rotating assembly 420 to rotate within the annular groove 470. It should be noted that first mounting holes 110 are provided on both sides of the base, allowing the measuring end 100 to be mounted on the GIS knife switch through the first mounting holes 110. Two second mounting holes 120 are also provided on the base, through which the lever post 460 and the transmission unit 430 are respectively mounted on the base. The lever post 460 is fixedly mounted in one of the second mounting holes 120.

[0068] Alternatively, based on the above embodiments, see... Figure 5 , Figure 6 and Figure 7The transmission unit 430 includes a plurality of driven wheels 431 and a driving wheel 432 arranged coaxially. The driving wheel 432 is mechanically connected to one of the driven wheels 431. The driving wheel 432 is coaxially arranged with the output shaft of the motor 500. A rotating gear 425 is provided on the outer side of the second assembly 422. The rotating gear 425 is mechanically connected to the driven wheels 431.

[0069] Specifically, multiple driven wheels 431 are fixedly connected to a rotating shaft 433, which can be disposed within another second mounting hole 120. The rotating shaft 433 can rotate within the second mounting hole 120. The driving wheel 432 is coaxially arranged with the output shaft of the motor 500 and is connected to one of the driven wheels 431 via gear meshing. Rotating gears 425 are provided at the top and bottom ends of the outer surface of the second assembly 422, allowing the driven wheels 431 to mesh with the rotating gears 425 on the outer surface of the second assembly 422. For example, Figure 6 The diagram shows three driven wheels 431(1), 431(2), and 431(3), where driven wheel 431(2) can mesh with driving wheel 432, and driven wheels 431(1) and 431(3) are respectively meshed with rotating gear 425 at the top and bottom of the outer side of the second assembly 422. When the motor 500 rotates, it drives driving wheel 432 to rotate, which in turn drives driven wheel 431(2) to rotate, and through rotating shaft 433, drives other driven wheels to rotate, thereby causing the cylindrical rotating assembly 420 to rotate within the annular groove 470 via rotating gear 425 on the outer side of the second assembly 422.

[0070] Optionally, Figure 8 This is a schematic diagram of the tracking unit of a GIS disconnector status indication system provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 8 The tracking unit 440 includes an infrared transmitter 441, an infrared receiver 442, and a first control unit 443. The infrared transmitter 441 emits infrared light to the main shaft 600 of the GIS disconnect switch, and the infrared receiver 442 receives the infrared reflected light from the main shaft 600 of the GIS disconnect switch. The positioning mark 610 absorbs part of the infrared light. The position signal includes a first position signal and a second position signal. The first control unit 443 outputs the first position signal to the control module 300 when the infrared reflected light received by the infrared receiver 442 is less than or equal to a preset threshold. The first control unit 443 outputs the second position signal to the control module 300 when the infrared reflected light received by the infrared receiver 442 is greater than the preset threshold.

[0071] Specifically, the infrared transmitter 441 and the infrared receiver 442 are electrically connected to the first control unit 443. The first control unit 443 is electrically connected to the control module 300. During the rotation of the tracking unit 440, the infrared transmitter 441 emits infrared light towards the main shaft 600. The main shaft 600 reflects the infrared light that hits its surface back. The infrared receiver 442 receives the reflected infrared light from the surface of the main shaft 600, indicating that the tracking unit 440 has not detected the position of the positioning mark 610 at this time. When the infrared light emitted by the infrared transmitter 441 hits the surface of the positioning mark 610, most of the infrared light is absorbed by the positioning mark 610, so that the infrared receiver 442 receives a small portion of the reflected infrared light, indicating that the tracking unit 440 has detected the position of the positioning mark 610 at this time. At the start of detection, the positions of the tracking unit 440 and the positioning mark 610 do not correspond. The infrared reflected light received by the infrared receiver 442 is less than or equal to a preset threshold. The first control unit 443 outputs a first position signal to the control module 300. The control module 300 sends a pulse signal to control the motor 500 to rotate and start detection based on the first position signal. When the positioning mark 610 is detected, that is, when the positions of the tracking unit 440 and the positioning mark 610 correspond, the infrared reflected light received by the infrared receiver 442 is greater than the preset threshold. The first control unit 443 outputs a second position signal to the control module 300. The control module 300 stops sending pulse signals to control the motor 500 to stop rotating based on the second position signal.

[0072] Optionally, Figure 9 This is a schematic diagram of the control module of a GIS disconnector status indication system provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 9 The control module 300 includes a signal transmitting unit 310 and a second control unit 320; the first control unit 443 is electrically connected to the second control unit 320, and the second control unit 320 is connected to both the signal transmitting unit 310 and the motor 500; when the second control unit 320 receives a first position signal, it outputs a pulse signal to control the motor 500 to rotate; when the second control unit 320 receives a second position signal, the motor 500 stops rotating; the signal transmitting unit 310 is used to send an indication signal to the display terminal 200 according to the number of pulse signals.

[0073] Specifically, the second control unit 320 is electrically connected to both the first control unit 443 and the motor 500. When the second control unit 320 receives the first position signal output by the first control unit 443, it outputs a pulse signal to control the motor 500 to rotate. When the second control unit 320 receives the second position signal output by the first control unit 443, it stops outputting pulse signals, and the motor 500 stops rotating. The signal transmitting unit 310 records the number of pulse signals output by the second control unit 320 during the process of receiving the first and second position signals, and then sends an indication signal containing the number of pulse signals output by the second control unit 320 to the display terminal 200. The first position signal can be a high-level signal, and the second position signal can be a low-level signal, thus controlling the motor 500 to rotate when the second control unit 320 receives a high-level signal and controlling the motor 500 to stop rotating when it receives a low-level signal.

[0074] Optionally, Figure 10 This is a schematic diagram of the display terminal of a GIS disconnector status indication system provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 10 The display unit 200 includes a signal receiving unit 210, a third control unit 220, and a display unit 230. The signal receiving unit 210 is electrically connected to the third control unit 220, and the third control unit 220 is electrically connected to the display unit 230. The signal receiving unit 210 is communicatively connected to the signal transmitting unit 310. The signal receiving unit 210 is used to receive indication signals. The third control unit 220 is used to parse the number of pulse signals according to the indication signals and output display signals. The display unit 230 is used to display the open / closed status of the GIS disconnector according to the display signals.

[0075] Specifically, the display terminal 200 can be installed on the control box. The signal receiving unit 210 can receive the indication signal sent by the signal transmitting unit 310 via wireless communication. The third control unit 220 stores a preset number of pulse signals. The third control unit 220 analyzes the indication signal received by the signal receiving unit 210 to determine the actual number of output pulse signals, compares the number of output pulse signals with the preset number of pulses to obtain various results, and outputs different display signals to the display unit 230 based on the comparison results. The display unit 230 includes multiple indicator lights, which can be LEDs emitting different colors. The display unit 230 illuminates different indicator lights according to the different display signals received, thereby displaying the opening and closing status of the GIS disconnector.

[0076] Figure 11 This is a schematic diagram of the circuit structure of the measuring terminal of a GIS disconnector status indication system provided in an embodiment of the present invention. Figure 12 This is a schematic diagram of the circuit structure of the display terminal of a GIS disconnector status indication system provided in an embodiment of the present invention. Based on the above embodiment, see... Figure 10 and Figure 11 Power supply 130 supplies power to the first control unit 443, the second control unit 320, the motor 500, and the signal transmitting unit 310. Power supply 130 and control module 300 can be housed in a control box on the bottom housing. Power supply 140 supplies power to the signal receiving unit 210, the third control unit 220, and the display unit 230. For example, Figure 12 The display unit 230 is shown to have four LEDs. Switch K1 controls the independent operation of the measuring terminal 100, and switch K2 controls the independent operation of the display terminal 200. When measuring the position of the GIS disconnect switch, both switches K1 and K2 need to be turned on.

[0077] The measurement principle of the measuring end of the GIS disconnector status indication system provided in this embodiment of the invention is as follows. Assuming the second control unit 320 outputs a pulse to the motor 500, and the corresponding rotation angle of the cylindrical rotating assembly 420 is θ, then the number of pulses corresponding to one revolution of the cylindrical rotating assembly 420 is 360 / θ. When installing the measuring end 100 of the indicating device, it needs to be initialized. During initialization, the GIS disconnector is first placed in the closed position. Before the measuring end 100 is powered on, the tracking unit 440 is in the initial position, which is fixed. After the measuring terminal 100 is powered on, since the tracking unit 440 does not correspond to the positioning mark 610, the infrared reflected light received by the infrared receiver 442 is less than or equal to a preset threshold. The first control unit 443 outputs a high-level signal to the second control unit 320, and the second control unit 320 sends a pulse signal to control the motor 500 to rotate and start detection. When the tracking unit 440 detects the positioning mark 610, the infrared reflected light received by the infrared receiver 442 is greater than the preset threshold. The first control unit 443 outputs a low-level signal to the second control unit 320, and the second control unit 320 stops outputting pulse signals, controlling the motor 500 to stop rotating, and determining that the current position is that the switch is in the "closed" position. The number of pulses output by the second control unit 320 to the motor 500 at this time is recorded as λ, and the number of pulses is sent to the display terminal 200. The third control unit 220 of the display terminal 200 stores the theoretical number of pulses a = λ corresponding to the "closed" position of the switch. Then, the GIS disconnect switch is placed in the open position. At this time, the tracking unit 440 no longer corresponds to the positioning mark 610, and the infrared reflected light received by the infrared receiver 442 is less than or equal to a preset threshold. The first control unit 443 outputs a high-level signal to the second control unit 320. At this time, the second control unit 320 sends 360 / θ–λ (λ=a) pulse signals to control the motor 500 to rotate, so that the tracking unit 440 returns to the initial position and re-detects. When the tracking unit 440 re-detects the positioning mark 610, the infrared reflected light received by the infrared receiver 442 is greater than the preset threshold. The first control unit 443 outputs a low-level signal to the second control unit 320, and the second control unit 320 stops outputting pulse signals, controlling the motor 500 to stop rotating, and determining that the current position is that the disconnect switch is in the "open" position. The number of pulses output by the control module 300 to the motor 500 during the re-detection process is recorded as λ, and the number of pulses is sent to the display terminal 200. The third control unit 220 of the display terminal 200 stores the theoretical number of pulses b=λ corresponding to the "open" position of the disconnect switch. The parameters a and b stored in the third control unit 220 of the display terminal 200 are not modified after initialization, thus completing the initialization of the measurement terminal 100.

[0078] After initialization, when the measuring knife switch is in the next state, the tracking unit 440 does not correspond to the positioning mark 610, and the infrared reflected light received by the infrared receiver 442 is less than or equal to the preset threshold. At this time, the second control unit 320 outputs 360 / θ–λ (where λ = b at this time) pulses to the motor, so that the tracking unit 440 returns to the initial position. Then, the position of the positioning mark 610 is detected again. Record the number of pulses λ output by the second control unit 320 to the motor 500 during the detection process and send the number of pulses to the display terminal 200 to complete the measurement. Each time the position state of the knife switch changes, the value of λ is continuously overwritten and reset, so that the tracking unit 440 returns to the initial position during the next measurement.

[0079] The display principle of the display terminal of the on-off state indication system of the GIS knife switch provided by the embodiment of the present invention is as follows. After the switch K2 is turned on, the power supply 140 supplies power to the signal receiving unit 210, the third control unit 220 and the display unit 230. When the signal receiving unit 210 receives the signal sent by the measuring terminal 100, the third control unit 220 analyzes the number of pulses λ therein, and then lights different LED lights of the display unit 230 according to different numbers of pulses. Due to reasons such as mechanism aging and jamming, each time the GIS knife switch is turned on or off, the angle rotated by the main shaft 600 may not be the same, with a slight difference. Assume that the allowable angle difference is ±ξ, and the corresponding pulse number error is ±(ξ / θ). The third control unit 220 of the display terminal 200 stores the theoretical number of pulses a corresponding to the "closed" position of the knife switch and the theoretical number of pulses b corresponding to the "open" position of the knife switch. When the number of pulses λ analyzed by the third control unit 220 satisfies: a-(ξ / θ) < λ < a+(ξ / θ), the red LED1 is lit, indicating the closed position; when the number of pulses λ analyzed by the third control unit 220 satisfies: b-(ξ / θ) < λ < b+(ξ / θ), the green LED2 is lit, indicating the open position. When the number of pulses λ analyzed by the third control unit 220 simultaneously satisfies: |λ - a| < |λ - b|, λ < a-(ξ / θ) or λ > a+(ξ / θ), the white LED3 is lit, indicating that the closing is not in place; when the number of pulses λ analyzed by the third control unit 220 simultaneously satisfies: |λ - a| > |λ - b|, λ < b-(ξ / θ) or λ > b+(ξ / θ), the blue LED4 is lit, indicating that the opening is not in place.

[0080] Figure 13 is a flowchart of a method for indicating the on-off state of a GIS knife switch provided by an embodiment of the present invention. See Figure 13 , the method includes:

[0081] S110. The rotation detection component detects the position of the positioning mark and outputs a position signal to the control module.

[0082] Specifically, when the tracking unit of the rotation detection component does not correspond to the positioning mark, it sends a first position signal to the control module to rotate the cylindrical rotation kit to detect the position of the positioning mark.

[0083] S120. The control module outputs a pulse signal according to the position signal.

[0084] Specifically, the control module outputs a pulse signal according to the received first position signal to control the motor to rotate, driving the cylindrical rotation kit to rotate to detect the position of the positioning mark. When the tracking unit detects the positioning mark, the control module stops outputting the pulse signal. The control module communicates the number of pulse signals λ output during the detection process to the display end.

[0085] S130. The display end determines the opening and closing state of the GIS disconnector according to the relationship between the number of pulse signals and the first preset number of pulses and the second preset number of pulses.

[0086] Specifically, the display end compares the relationship between the actual number of output pulse signals λ and the first preset number of pulses a and the second preset number of pulses b, and lights different indicator lights according to different comparison results to display the in-place situation of the opening and closing of the GIS disconnector. Exemplarily, when the number of pulses λ parsed by the third control unit satisfies: a - (ξ / θ) < λ < a + (ξ / θ), the red LED1 is lit, indicating the closed position; when the number of pulses λ parsed by the third control unit satisfies: b - (ξ / θ) < λ < b + (ξ / θ), the green LED2 is lit, indicating the open position. When the number of pulses λ parsed by the third control unit simultaneously satisfies: |λ - a| < |λ - b|, λ < a - (ξ / θ) or λ > a + (ξ / θ), the white LED3 is lit, indicating that the closing is not in place; when the number of pulses λ parsed by the third control unit simultaneously satisfies: |λ - a| > |λ - b|, λ < b - (ξ / θ) or λ > b + (ξ / θ), the blue LED4 is lit, indicating that the opening is not in place.

[0087] Optionally, Figure 14 is a flowchart of another method for indicating the opening and closing state of a GIS disconnector provided by an embodiment of the present invention. On the basis of the above embodiment, see Figure 14 . Before the rotation detection component detects the position of the positioning mark and outputs a position signal to the control module, it further includes:

[0088] S100. Control the GIS disconnector to be in the closed state, and the rotation detection component detects the position of the positioning mark to complete the initial positioning.

[0089] Specifically, the tracking unit is in an initial, fixed position. During initialization, the tracking unit is not aligned with the positioning mark. The infrared reflected light received by the infrared receiver is less than or equal to a preset threshold. The first control unit outputs a high-level signal to the second control unit, which then sends a pulse signal to control the motor to start detection. When the tracking unit detects the positioning mark, the infrared reflected light received by the infrared receiver exceeds the preset threshold. The first control unit outputs a low-level signal to the second control unit, which stops outputting pulse signals and controls the motor to stop rotating, thus determining the current position as the switch being in the "closed" position.

[0090] S101. The display terminal parses and stores the number of pulse signals output by the control module during initial positioning as the first preset number of pulses.

[0091] Specifically, the second control unit outputs λ pulses to the motor and sends the pulse count to the display terminal. The third control unit on the display terminal parses and stores the first preset pulse count a = λ corresponding to the "closed" position of the switch.

[0092] S102, Control the GIS disconnect switch to the open position, and the rotation detection component detects and resets the position of the positioning mark.

[0093] Specifically, after the GIS disconnect switch is in the open position, if the tracking unit is not aligned with the positioning marker, and the infrared reflected light received by the infrared receiver is less than or equal to a preset threshold, the first control unit outputs a high-level signal to the second control unit. At this time, the second control unit sends 360 / θ–λ (where λ = a) pulse signals to control the motor to rotate, causing the tracking unit to return to its initial position for re-detection. When the tracking unit re-detects the positioning marker, the infrared reflected light received by the infrared receiver is greater than the preset threshold. The first control unit outputs a low-level signal to the second control unit, which stops outputting pulse signals, controls the motor to stop rotating, and determines that the current position is the disconnect switch in the "open" position, completing the reset.

[0094] S103. The display terminal parses and stores the number of pulse signals output by the control module during reset as the second preset number of pulses.

[0095] Specifically, during the reset detection process, the control module outputs λ pulses to the motor and sends the pulse count to the display terminal. The third control unit of the display terminal stores the second preset pulse count b = λ corresponding to the "open" position of the knife switch, thus completing the initialization.

[0096] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0097] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A system for indicating the open or closed state of a GIS disconnector, characterized in that The utility model relates to a kind of GIS switch position detection device, including: Measurement end and display end; The measurement end includes: control module, rotation detection component and motor; A through hole is opened in the rotation detection component, and the main shaft of the GIS switch penetrates the through hole;Wherein, the main shaft of the GIS switch is provided with positioning mark; The rotation detection component is mechanically connected with the motor, and the motor drives at least part of the components in the rotation detection component to rotate around the main shaft; The control module is electrically connected with the rotation detection component and the motor respectively;The rotation detection component is used to detect the position of the positioning mark and output position signal to the control module, and the control module is used to output pulse signal according to the position signal to control the motor to rotate; The display end is communicatively connected with the control module, and the display end is used to indicate the on-off state of the GIS switch according to the number of pulse signals.

2. The on-off status indicating system of the GIS disconnector according to claim 1, characterized in that, The rotation detection component includes: cylindrical rotating assembly, transmission unit and tracking unit; The cylindrical rotating assembly includes coaxially arranged first assembly and second assembly;The first assembly is arranged on the inner side of the second assembly;The inner side of the first assembly is provided with the through hole;The main shaft penetrates the through hole; The cylindrical rotating assembly further includes a plurality of connecting parts;The outer side of the first assembly is mechanically connected with the inner side of the second assembly through the connecting parts; The second assembly is mechanically connected with the transmission unit, and the motor drives the transmission unit to rotate to drive the cylindrical rotating assembly to rotate; The tracking unit is arranged on one of the connecting parts, and the tracking unit is electrically connected with the control module.

3. The on-off status indicating system of the GIS disconnector according to claim 2, characterized in that, The side of the connecting part close to the second assembly is provided with a plurality of conductive rings, and the side of the connecting part close to the first assembly is provided with the tracking unit;The conductive ring is electrically connected with the tracking unit; The rotation detection component further includes a dial column, and a plurality of conductive dials are arranged on the dial column;The first end of the conductive dial is mechanically connected with the dial column, and the second end of the conductive dial is electrically connected with the conductive ring;The control module is electrically connected with the conductive dial and the conductive ring through the conductive dial.

4. The on-off status indicating system of the GIS disconnecting link according to claim 2, characterized in that, The rotation detection component further includes an annular groove; The top surface and the bottom surface of the second assembly are provided with a plurality of pulleys, and the cylindrical rotating assembly rotates in the annular groove through the pulleys.

5. The on-off status indicating system of the GIS pole link according to claim 2, characterized in that, The transmission unit includes a plurality of driven wheels and a driving wheel arranged coaxially, and the driving wheel is mechanically connected with one of the driven wheels; The driving wheel is coaxially arranged with the output shaft of the motor, and the outer side of the second assembly is provided with a rotating gear;The rotating gear is mechanically connected with the driven wheel.

6. The on-off status indicating system of the GIS pole link according to claim 2, characterized in that, The tracking unit includes an infrared emitter, an infrared receiver and a first control unit; The infrared emitter is used to emit infrared light to the main shaft of the GIS switch, and the infrared receiver is used to receive the infrared reflection light reflected by the main shaft of the GIS switch;The positioning mark absorbs part of the infrared light;The position signal includes first position signal and second position signal. The first control unit outputs the first position signal to the control module when the infrared reflection light received by the infrared receiver is less than or equal to a preset threshold value; The first control unit outputs the second position signal to the control module when the infrared reflection light received by the infrared receiver is greater than the preset threshold value.

7. The on-off status indicating system of the GIS disconnector according to claim 6, characterized in that, The control module comprises a signal sending unit and a second control unit; the first control unit is electrically connected with the second control unit, and the second control unit is connected with the signal sending unit and the motor respectively; When the second control unit receives the first position signal, it outputs a pulse signal to control the rotation of the motor; When the second control unit receives the second position signal, the motor stops rotating; The signal sending unit is used to send an indication signal to the display end according to the number of pulse signals.

8. The on-off status indicating system of the GIS disconnector according to claim 7, characterized in that, The display end comprises a signal receiving unit, a third control unit and a display unit; the signal receiving unit is electrically connected with the third control unit, and the third control unit is electrically connected with the display unit; The signal receiving unit is communicatively connected with the signal sending unit, and is used to receive the indication signal; The third control unit is used to analyze the number of pulse signals according to the indication signal and output a display signal; and the display unit is used to display the on-off state of the GIS switch according to the display signal.

9. A method for indicating the on-off state of a GIS disconnector, characterized in that, The on-off state indication system of the GIS switch according to any one of claims 1-8 is executed; The rotation detection assembly detects the position of the positioning mark and outputs a position signal to the control module; The control module outputs a pulse signal according to the position signal; The display end determines the on-off state of the GIS switch according to the relationship between the number of pulse signals, a first preset number of pulses and a second preset number of pulses.

10. The method according to claim 9, wherein Before the rotation detection assembly detects the position of the positioning mark and outputs a position signal to the control module, it further comprises: The GIS switch is controlled to be in the on state, and the rotation detection assembly detects the position of the positioning mark to complete the initialization positioning; The display end analyzes and stores the number of pulse signals output by the control module during the initialization positioning as the first preset number of pulses; The GIS switch is controlled to be in the off state, and the rotation detection assembly detects the position of the positioning mark to complete the reset; The display end analyzes and stores the number of pulse signals output by the control module during the reset as the second preset number of pulses.

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