GIS knife contact status real-time monitoring system

Abstract

The present invention provides a real-time monitoring system for GIS knife contact status, comprising a plurality of transparent peepholes mounted on the device and end caps for covering the transparent peepholes, as well as a plurality of camera unit groups located outside the device and within the transparent peepholes. Each camera unit group corresponds to a knife contact located within the device and is used to capture monitoring images of the corresponding knife contact. The plurality of camera unit groups are connected to an external monitoring system to transmit monitoring images containing the knife contacts to the external monitoring system. This solution monitors contact status through direct monitoring, avoiding the problem of misjudgment of status. The system can be simply modified from the existing system and installed externally, eliminating the need to worry about high voltage within the device and eliminating safety issues. The solution is low-cost and has minimal implementation pressure.

Description

Technical Field

[0001] The invention belongs to the technical field of GIS switch blade state monitoring, and in particular relates to a real-time monitoring system for GIS switch blade contact states. Background Art

[0002] The opening and closing action of the GIS switch is that the operating mechanism receives the opening and closing command, drives the motor to run, and the motor transmits the torque to the connecting rod mechanism, which then pushes the contact conductive rod to move linearly to achieve the purpose of opening and closing.

[0003] Because GIS is a fully enclosed structure, existing technology cannot directly monitor the actual operating status of the contacts. It can only indirectly check whether the opening and closing are in place by monitoring the rotation angle of the synchronous indicator of the operating mechanism. However, this monitoring method is prone to misjudgment. For example, when there is a problem with the connecting rod system, it will lead to misjudgment. Misjudgment of the contacts may lead to serious consequences. Therefore, a system that can directly monitor the status of the knife contacts is needed. Summary of the Invention

[0004] The purpose of the present invention is to provide a real-time monitoring system for the status of GIS knife contacts in order to solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A real-time monitoring system for the status of GIS knife contacts comprises a plurality of transparent peep windows mounted on the equipment and end caps for covering the transparent peep windows, as well as a plurality of camera unit groups located outside the equipment and in the transparent peep windows. Each camera unit group corresponds to a knife contact located in the equipment and is used to obtain a monitoring image of the corresponding knife contact. The plurality of camera unit groups are all connected to an external monitoring system to send monitoring images containing the knife contacts to the external monitoring system.

[0007] In the above-mentioned GIS knife contact state real-time monitoring system, each camera unit group includes a micro camera and a fill light for filling light for the micro camera;

[0008] A wire hole is provided on the end cover, and the camera unit group is connected with a wire. The wire extends through the wire hole to the outside of the transparent peep window and is connected to an external monitoring system.

[0009] In the above-mentioned real-time monitoring system for the status of GIS knife contacts, the micro cameras and fill lights of each camera unit group are staggered so that the micro cameras can obtain non-reflective / low-reflective images.

[0010] In the above-mentioned GIS knife contact status real-time monitoring system, each camera unit group includes multiple fill lights, and the multiple fill lights are installed in the same end cover as the micro cameras in the group, and the micro cameras and fill lights are staggered through a staggered structure.

[0011] In the above-mentioned GIS knife contact status real-time monitoring system, the staggered structure includes a truncated cone-shaped light blocking ring arranged on the circumferential outside of the micro camera, and multiple fill lights are respectively located outside the truncated cone-shaped light blocking ring and illuminate the knife contacts corresponding to the camera unit group to realize the staggered arrangement of the micro camera and the fill light.

[0012] In the above-mentioned real-time monitoring system for the status of GIS knife contacts, the end face of the frustum-shaped light blocking ring away from the bottom wall of the end cover is attached to the transparent peek window, and the frustum-shaped light blocking ring covers the light blocking range C of the transparent peek window, including the perspective range D covered by the necessary shooting range A of the micro camera.

[0013] In the above-mentioned real-time monitoring system for the status of GIS knife contacts, the micro cameras and fill lights of the same camera unit group are respectively installed in the two end covers, and the lenses of the micro cameras and the light of the fill lights are both directed towards the knife contacts corresponding to the micro cameras in the group to realize the staggered arrangement of the micro cameras and fill lights in the group.

[0014] In the above-mentioned GIS knife contact status real-time monitoring system, the micro cameras of one camera unit group and the fill lights of another camera unit group are installed in the same end cover, so that a mutually staggered arrangement structure is formed between the two or more camera unit groups.

[0015] In the above-mentioned GIS knife contact status real-time monitoring system, the external monitoring system stores the corresponding relationship between each camera unit group and the knife contact, and the corresponding relationship between each camera unit group and the external monitoring system port;

[0016] The external monitoring system has an execution module for starting the corresponding camera unit group according to instructions generated by manual control or automatically generated;

[0017] The external monitoring system is provided with an image recognition module for automatically recognizing the status of the knife contacts in the pictures taken by the camera unit group.

[0018] In the above-mentioned real-time monitoring system for the status of GIS knife contacts, the external monitoring system has an execution coordination module for controlling the camera unit groups with mutually staggered relationships to start only one group at a time.

[0019] The advantages of the present invention are:

[0020] 1. The structure is simple and only requires simple transformation on the original basis, and the economic cost of implementing the solution is low;

[0021] 2. Installed outside the equipment, there is no need to worry about the high voltage problem inside the equipment, there is no safety problem, and the implementation plan is stress-free with no safety issues;

[0022] 3. By staggering the fill light and camera, you can effectively avoid reflection problems and capture clear images.

[0023] 4. Direct monitoring of the switch status by image capture can more clearly and effectively judge the working status of the switch than the original indirect monitoring method, and can effectively avoid misjudgment and the serious consequences caused by misjudgment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic structural diagram of a transparent peep window end cover according to an embodiment of the present invention;

[0025] Figure 2 This is another structural schematic diagram of a transparent peep window end cover according to an embodiment of the present invention;

[0026] Figure 3 Schematic diagram of the shooting path and fill light path in the first embodiment of the present invention;

[0027] Figure 4 This is a system circuit structure block diagram of the GIS knife contact status real-time monitoring system in Example 1 of the present invention;

[0028] Figure 5 Schematic diagram of the shooting path and fill light path in the third embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the appearance of the device in Example 4 of the present invention.

[0030] Reference numerals: transparent peep window 1; end cover 2; wire hole 21; protruding block 22; embedding groove 23; camera unit group 3; miniature camera 31; fill light 32; knife contact 4; external monitoring system 5; monitoring terminal 51; expansion port 52; frustum-shaped aperture ring 6. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Example 1

[0033] like Figures 1-4As shown, this embodiment discloses a real-time monitoring system for GIS switch contact status, comprising a plurality of transparent peep windows 1 mounted on GIS equipment and an end cap 2 for covering the transparent peep windows 1. The end cap 2 has a protrusion 22 located outside the transparent peep windows 1 for opening the end cap 2. A mounting groove 23 is defined within the transparent peep windows 1 and corresponding to the protrusion 22.

[0034] Those skilled in the art should know that the transparent peep window on the GIS equipment is used for staff to observe the internal status of the equipment. The GIS equipment has multiple knife contacts 4, and each knife contact 4 corresponds to one or more (usually one) transparent peep windows for staff to observe the knife contact 4.

[0035] This solution involves a simple modification of the transparent peep window 1, specifically the end cap 2 of the transparent peep window 1. Specifically, a wire hole 21 is opened in the mounting groove 23 of the end cap 2, through which a raised block 22 is passed. A micro camera 31 is then installed in the mounting groove 23, and three fill lights 32 are arranged around the micro camera 31 to provide supplementary light for the micro camera 31. The micro camera 31 faces the knife contact 4 located within the device, and is used to capture surveillance images including the knife contact 4. In this embodiment, the fill lights 32 in the same group are installed on the same end cap 2 as the micro camera 31, and together with the micro camera 31, face the knife contact 4.

[0036] The miniature camera 31 and fill light 32 are each connected to a wire. The wires extend through the wire hole 21 to the outside of the transparent peephole 1 and are connected to the external monitoring system 5. The wires are used to transmit images to the external monitoring system 5 and receive power from the external monitoring system 5. The miniature camera 31 and fill light 32 can be connected to the external monitoring system 5 using separate wires and ports. Alternatively, the wires for the miniature camera 31 and fill light 32 can be combined and connected to a USB port or other data port. The USB port can then be used to connect to the external monitoring system 5, transmitting images to the external monitoring system 5 and receiving power from the external monitoring system 5 for the fill light 32 and miniature camera 31.

[0037] Specifically, the external monitoring system 5 includes a monitoring terminal 51 and a monitoring display screen 52. The monitoring terminal 51 is connected to an expansion port 52. The USB ports connected to the multiple camera units 3 are respectively connected to the expansion ports 52, and are then connected to the monitoring terminal 51 through the expansion ports 52. In this embodiment, the miniature camera 31 and the fill light 32 are preferably connected to a USB port or other data port by wires, so the expansion port 52 here is a USB expansion port.

[0038] This embodiment installs the newly added camera unit outside the device, eliminating the need to worry about high voltage inside the device and ensuring complete retrofit safety. This simple retrofit solves a practical problem. Directly monitoring the knife contacts 4 within the device completely avoids misjudgments of contact movement, improving operational safety. This approach offers a low-investment, high-return solution. For example, the retrofit offers low economic costs, low stress costs, and minimal effort, while completely avoiding misjudgments of contact movement and the serious consequences they bring. Furthermore, it facilitates direct, real-time monitoring of contact movement status.

[0039] Example 2

[0040] This embodiment is similar to the first embodiment, except that the monitoring terminal 51 of this embodiment stores the corresponding relationship between each camera unit group 3 and the knife contact 4, as well as the corresponding relationship between each camera unit group 3 and the port on the expansion port 52. When the status of a knife contact 4 needs to be checked, the corresponding camera unit group 3 is obtained based on the corresponding relationship. Then, the port corresponding to the corresponding camera unit group 3 is powered on to activate the fill light 32 and micro camera 31 of the camera unit group 3, and the image is captured from the micro camera 31. The binding relationship between the camera unit group 3 and the knife contact 4 is stored in the monitoring terminal 51 during the modification process.

[0041] The binding relationship between the camera unit group 3 and the ports on the expansion port 52 is obtained and saved after the USB port of the camera unit group 3 is inserted into the expansion port 52. Specifically, each USB port of the camera unit group 3 has its own physical number. When the USB port of each camera unit group 3 is plugged into the expansion port 52, the monitoring terminal 51 will obtain the physical number of the USB port of the plugged port, thereby determining the camera unit group 3, and then save the binding relationship between the camera unit group 3 and the plugged port. When the USB port of the camera unit group 3 changes the port to which it is connected, the binding relationship is updated. The binding method can prevent the capture of data from being mistaken, and the user can plug the USB port of the camera unit group 3 into any port of the expansion port 52.

[0042] If the fill light 32 and the micro camera 31 use separate wires and ports, the correspondence between the power cord of the fill light 32 in each camera unit group 3 and the switch contact 4, as well as the correspondence between the fill light 32 and the port on the extension port 52 can be stored. The correspondence is stored in the monitoring terminal 51 in advance during the modification process. Since the inside of the device is in a dark state without the fill light 32 and no picture can be obtained, the monitoring picture is obtained by controlling the power supply of the fill light 32. Of course, the correspondence between the fill light 32 and the micro camera 31 in the group and the extension port 52 and the switch contact 4 can also be stored at the same time, and the ports connected to the fill light 32 and the micro camera 31 can be controlled at the same time when starting or shutting down the camera unit group 3.

[0043] Preferably, the monitoring terminal 51 of this embodiment includes an execution module, which is used to start the corresponding camera unit group 3 according to instructions generated by manual control or automatically generated to light the fill light 32 in the group and obtain pictures taken by the micro camera 31 in the group; starting the camera unit group 3 when needed can save energy.

[0044] Further preferably, the monitoring terminal 51 also includes an image recognition module for automatically identifying the status of the knife contacts 4 in the images captured by the camera unit group 3. The corresponding camera unit group 4 can be activated based on the latest movement of the knife contacts 4. For example, when a knife contact 4 receives a close command / open command, the camera unit group 3 corresponding to the knife contact 4 is activated for real-time online monitoring and automatic identification of the contact status. When the contact status is consistent with the command, it indicates normal operation. If it is inconsistent, an alarm is issued. Each camera unit group 4 can also be activated at a fixed time, and the knife contacts 4 can be judged to be in a normal state based on the image. When it is judged to be in an abnormal state, an alarm is issued. In a normal state, the closed knife contact 4 is in a closed state, and the open knife contact 4 is in an open state.

[0045] Example 3

[0046] This embodiment is similar to the first embodiment, except that, since the interior of the device is a high-pressure environment, for safety reasons, the device window is provided with a transparent peep window 1 for isolating the inside and outside of the device. When the fill light is directly irradiated on the transparent peep window 1, there will be a reflection problem. Therefore, the picture obtained by the micro camera 31 in the first embodiment will have a relatively serious reflection problem, resulting in the picture not being clear enough.

[0047] In order to solve the reflection problem, the micro camera 31 and the fill light 32 of each camera unit group 3 of this embodiment are staggeredly arranged through a staggered structure so that the micro camera 31 can obtain a non-reflection / low-reflection image.

[0048] Specifically, if Figure 5 As shown, the staggered structure covers a truncated cone-shaped aperture ring 6 that is arranged on the circumferential outer side of the micro camera 31. The truncated cone-shaped aperture ring 6 is a hollow structure without a cover or a bottom, and a plurality of fill lights 32 are respectively located outside the truncated cone-shaped aperture ring 6 and illuminate the knife contacts 4 facing the micro cameras 31 in the group. The fill lights 32 can be installed on the bottom wall of the end cover 2 or on the circumferential inner wall of the end cover 2. The truncated cone-shaped aperture ring 6 is fixed to the end cover 2, and the bottom end of the truncated cone-shaped aperture ring 6 can be fixed to the bottom wall or the circumferential inner wall of the end cover 2 to fix the truncated cone-shaped aperture ring 6 to the end cover 2.

[0049] Specifically, after the end cap 2 is placed on the transparent peep window 1, the end surface of the truncated cone-shaped light-blocking ring 6 away from the bottom of the end cap will be in contact with the transparent peep window 1. A buffer strip made of a flexible material such as rubber can be provided around the end surface of the truncated cone-shaped light-blocking ring 6 in contact with the transparent peep window 1 to prevent the truncated cone-shaped light-blocking ring 6 from scratching the transparent peep window 1. The light-blocking range C of the transparent peep window 1 covered by the truncated cone-shaped light-blocking ring 6 includes the perspective range D of the transparent peep window 1 covered by the necessary shooting range A of the micro camera 31. The inclusion here includes overlapping, i.e., the light-blocking range C overlaps with the perspective range D. The necessary shooting range refers to the minimum shooting range that includes the knife contact 4, which is smaller than the complete shooting range B of the micro camera.

[0050] In this embodiment, a truncated cone-shaped aperture ring 6 is set to stagger the fill light 32 and the micro camera 31, so that the fill light 32 and the micro camera are located in different spaces, blocking part of the fill light source to prevent the light source from irradiating the perspective range D and causing reflection problems. The light source of the fill light 32 enters the interior of the device from outside the circular aperture ring 6 through the transparent peep window 1 to illuminate the knife contact 4, which can solve the reflection problem and improve the clarity of the photos taken by the micro camera 31.

[0051] Example 4

[0052] This embodiment is similar to embodiments one to three, except that the micro camera 31 and fill light 32 of the same camera unit group 3 in this embodiment are respectively installed at two transparent peep windows 1, and the lens of the micro camera 31 and the light of the fill light 32 are both directed towards the knife contact 4 corresponding to the micro camera 31 in the group to achieve a staggered arrangement of the micro camera 31 and the fill light 32 in the group.

[0053] Furthermore, in this embodiment, the monitoring terminal 51 also has an execution coordination module for controlling the camera unit groups 3 with a mutually staggered relationship to start only one group at a time to avoid reflection problems.

[0054] Since a device has relatively many switch blade contacts 4 and corresponding transparent peep windows 1, and the interior of the device is connected, a mutually staggered arrangement structure can be formed by combining two or more transparent peep windows. Figure 6As shown, the micro camera A of the camera unit group A and the fill light B of the camera unit group B are in the end cover a, and the fill light A of the camera unit group A and the micro camera B of the camera unit group B are in the end cover b. When the camera unit group A is started, that is, the micro camera A in the end cover a and the fill light A in the end cover b are started, the camera unit group B is turned off. Conversely, when the camera unit group B is started, the camera unit group A is turned off, thereby achieving a mutually staggered arrangement relationship between the camera unit group A and the camera unit group B. This embodiment achieves a staggered arrangement of the micro cameras 31 and the fill light 32 of a camera unit group 3 by respectively installing them at two transparent peep windows 1, and maximizes the non-reflective / low-reflective image acquisition of all the knife contacts 4 through the mutual staggered relationship between two or more camera unit groups 3. When a micro camera 31 is working, there is no light source in the transparent peep window 1 where it is located, thereby achieving the purpose of solving the reflection problem.

[0055] Since some knife contacts 4 may have no available transparent peep windows 1 except for their corresponding transparent peep windows 1, it is impossible to modify the camera unit group 3 by staggering the arrangement. In this case, this embodiment can be used in combination with the third embodiment.

[0056] This embodiment also adopts a staggered manner to install the micro camera 31 and fill light 32 of a camera unit group 4, and through the mutual use of each transparent peep window, a mutually staggered arrangement structure is formed between two or more camera unit groups 3, which can effectively avoid the reflection problem and obtain higher-definition pictures.

[0057] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

[0058] Although this document frequently uses terms such as transparent peephole 1; end cap 2; wire hole 21; raised block 22; mounting slot 23; camera unit assembly 3; miniature camera 31; fill light 32; knife contact 4; external monitoring system 5; monitoring terminal 51; expansion port 52; and frustum-shaped aperture ring 6, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations would be contrary to the spirit of the present invention.

Claims

1. A GIS knife contact state real-time monitoring system, comprising a plurality of transparent peep windows (1) mounted on the device and end covers (2) for covering the transparent peep windows (1), characterized in that: It also includes a plurality of camera unit groups (3) located outside the device and in the end cover (2) of the transparent peep window (1), each camera unit group (3) corresponds to a knife contact (4) located inside the device and is used to obtain a monitoring image of the corresponding knife contact (4), and the plurality of camera unit groups (3) are connected to an external monitoring system (5); Each camera unit group (3) includes a micro camera (31) and a fill light (32) for filling light for the micro camera (31); The micro cameras (31) and fill lights (32) of the same camera unit group (3) are respectively installed in the two end covers (2), and the lenses of the micro cameras (31) and the light of the fill lights (32) are directed toward the knife contacts (4) corresponding to the micro cameras (31) in the group to achieve a staggered arrangement of the micro cameras (31) and the fill lights (32) in the group so that the micro cameras (31) can obtain a non-reflective / low-reflective image; The micro camera (31) is installed at the embedding groove (23) of the end cover (2), and the embedding groove (23) is originally provided in the end cover (2) of the device.

2. The GIS switch contact status real-time monitoring system according to claim 1 is characterized in that: The end cover (2) is provided with a wire hole (21), the camera unit group (3) is connected with a wire, and the wire extends through the wire hole (21) to the outside of the transparent peep window (1) and is connected to the external monitoring system (5).

3. The GIS knife contact status real-time monitoring system according to claim 1 is characterized in that: Each camera unit group (3) includes a plurality of fill lights (32).

4. The GIS knife contact status real-time monitoring system according to claim 3 is characterized in that: The micro camera (31) of one camera unit group (3) and the fill light (32) of another camera unit group (3) are installed in the same end cover (2), so that a mutually staggered arrangement structure is formed between the two or more camera unit groups (3).

5. The GIS knife contact status real-time monitoring system according to claim 4 is characterized in that: The fill light (32) is located on the circumferential outside of the micro camera (31) on the same end cover (2).

6. The GIS knife contact status real-time monitoring system according to any one of claims 1 to 5, characterized in that: The external monitoring system (5) stores the corresponding relationship between each camera unit group (3) and the knife contact (4), as well as the corresponding relationship between each camera unit group (3) and the port of the external monitoring system (5); The external monitoring system (5) has an execution module for starting the corresponding camera unit group (3) according to instructions generated by human control or automatically generated; The external monitoring system (5) has an image recognition module for automatically identifying the state of the knife contact (4) in the image captured by the camera unit group (3).

7. The GIS switch contact status real-time monitoring system according to claim 5 is characterized in that: The external monitoring system (5) has an execution coordination module for controlling the camera unit groups (3) having a mutually staggered relationship to start only one group at a time.

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