Isolating switch and control system

Abstract

The present invention relates to the technical field of disconnectors, and provides a disconnector and control system. The disconnector includes a transmission component, a moving contact, a stationary contact, a controller, and a display component for displaying a first image tag, the first image tag storing at least a unique identifier and a timestamp matching the disconnector. The controller is configured to receive a reclosing instruction sent by a mobile terminal, verify the unique identifier, timestamp, and authorization key in the reclosing instruction, and if the verification is successful, control the transmission component to actuate the moving contact to achieve a reclosing operation of the disconnector. The mobile terminal scans the first image tag to obtain the unique identifier and timestamp matching the disconnector, generates a reclosing instruction based on the unique identifier, timestamp, and authorization key, and transmits it to the controller. The first image tag is dynamically updated. The present invention can avoid the occurrence of erroneous reclosing operations.

Description

Technical Field

[0001] The present invention relates to the technical field of isolating switches, and in particular to an isolating switch and a control system. Background Art

[0002] Disconnectors often trip due to overcurrent, short circuit, leakage, or undervoltage. After a technician arrives on-site to troubleshoot the problem, they use a mobile device to issue a command to reclose the disconnector. This command actuates the disconnector to reclose, eliminating the risk of electric shock associated with manual reclosing.

[0003] For electrical cabinets equipped with multiple disconnect switches, more than one may be in the open state. Besides disconnect switches that trip due to overcurrent, short circuit, leakage, or undervoltage, others may be tripped for maintenance. Failure to reclose specific disconnect switches, causing disconnect switches that were opened for maintenance to reclose, can easily lead to electric shock accidents. Furthermore, if technicians instruct disconnect switches that are still faulty to reclose, this can easily cause secondary faults in the disconnectors. In severe cases, this can cause the disconnectors to short-circuit, potentially resulting in fires.

[0004] In the prior art, the disconnector performs a reclosing operation immediately after receiving a reclosing instruction sent by a technician through a mobile terminal. However, there is a lack of judgment on the reclosing instruction, which can easily lead to accidents such as electric shock or fire due to incorrect reclosing operations. Summary of the Invention

[0005] Based on this, in order to solve the problem in the prior art that the disconnector performs a reclosing operation immediately after receiving a reclosing instruction sent by a technician through a mobile terminal, lacks the ability to distinguish the reclosing instruction, and is prone to accidents such as electric shock or fire due to erroneous reclosing operations, the present invention provides an disconnector and a control system, the specific technical solutions of which are as follows:

[0006] An isolating switch includes a transmission component, a moving contact, and a stationary contact installed in a housing. The transmission component is in transmission connection with the moving contact and is configured to drive the moving contact to cooperate with the stationary contact to achieve opening and closing operations of the isolating switch. The isolating switch also includes a controller and a display component installed on the isolating switch housing for displaying a first image label. The first image label stores at least a unique identifier and a timestamp that match the isolating switch. The controller is configured to receive a reclosing instruction sent by a mobile terminal, verify the unique identifier, timestamp, and authorization key in the reclosing instruction, and if the verification is successful, drive the moving contact to achieve the reclosing operation of the isolating switch by controlling the transmission component to operate.

[0007] The mobile terminal stores an authorization key, obtains a unique identifier and a timestamp matching the disconnector by scanning the first image tag, generates a reclosing instruction based on the unique identifier, timestamp and authorization key, and sends the reclosing instruction to the controller;

[0008] The first image tag is dynamically updated, and after the display component dynamically updates the first image tag, it returns an updated timestamp to the controller.

[0009] The controller in the disconnector verifies the unique identifier, timestamp and authorization key in the reclosing instruction, and after the unique identifier, timestamp and authorization key in the reclosing instruction are verified, drives the transmission component to operate and realize the reclosing operation of the disconnector. This can solve the problem in the prior art that the disconnector performs the reclosing operation immediately after receiving the reclosing instruction sent by the technician through the mobile terminal, lacks the judgment of the reclosing instruction, and is prone to accidents such as electric shock or fire due to erroneous reclosing operation.

[0010] Furthermore, by dynamically updating the first image tag, the real-time nature of the first image tag can be improved, allowing for dynamic updates of reclosing instructions. This allows technicians to rescan the first image tag each time they need to reclose the disconnector during troubleshooting, preventing frequent reclosing of the disconnector due to misoperation.

[0011] Furthermore, the mobile terminal at least includes a scanning component for scanning the first image tag and a storage unit for storing the authorization key.

[0012] Furthermore, the first image tag is a QR code or a barcode.

[0013] A disconnector control system includes a controller and a mobile terminal. The mobile terminal is bound to a user identity and is assigned an authorization key that matches the user identity. The mobile terminal is used to scan a first image tag displayed by a display component to obtain a unique identifier and a timestamp that match the disconnector. A reclosing instruction is generated based on the unique identifier, timestamp, and authorization key and sent to the controller. The controller is used to receive the reclosing instruction, verify the unique identifier, timestamp, and authorization key in the reclosing instruction, and if the verification is successful, control the operation of a transmission component to drive a moving contact to achieve a reclosing operation of the disconnector.

[0014] The first image tag is dynamically updated, and after the display component dynamically updates the first image tag, it returns an updated timestamp to the controller.

[0015] Furthermore, the mobile terminal at least includes a scanning component for scanning the first image tag and a storage unit for storing the authorization key.

[0016] Furthermore, a key generation algorithm is stored in the controller, and the key generation algorithm generates an authorization key according to user identity information.

[0017] Furthermore, the first image tag is a QR code or a barcode. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily drawn to scale, but rather the emphasis is placed on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0019] Figure 1 This is a schematic diagram of the overall structure of an isolating switch in one embodiment of the present invention;

[0020] Figure 2 It is a schematic diagram of the overall structure of an isolating switch control system in one embodiment of the present invention.

[0021] Description of reference numerals:

[0022] 1. Housing; 2. Display component. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The "first" and "second" in the present invention do not represent specific quantities and orders, but are only used to distinguish names.

[0027] like Figure 1 As shown, an isolating switch in one embodiment of the present invention includes a transmission component, a moving contact and a static contact installed in a housing 1. The transmission component is transmission-connected to the moving contact and is configured to drive the moving contact to cooperate with the static contact to realize the opening and closing operations of the isolating switch.

[0028] Since the specific structures and installation methods of the transmission components, the moving contacts and the static contacts belong to conventional technical means in this field, they will not be described in detail here.

[0029] The disconnector further includes a controller and a display component 2 mounted on the disconnector housing for displaying a first image label, wherein the first image label stores at least a unique identifier and a timestamp matching the disconnector. The controller is configured to receive a reclosing instruction sent by a mobile terminal, verify the unique identifier, timestamp, and authorization key in the reclosing instruction, and if the verification is successful, control the transmission component to actuate the movable contact to achieve a reclosing operation of the disconnector.

[0030] The mobile terminal stores an authorization key, obtains a unique identifier and a timestamp matching the disconnector by scanning the first image tag, generates a reclosing instruction based on the unique identifier, timestamp and authorization key, and sends the reclosing instruction to the controller;

[0031] The first image tag is dynamically updated, and after the display component dynamically updates the first image tag, it returns an updated timestamp to the controller.

[0032] The mobile terminal at least includes a scanning component such as a camera for scanning the first image tag and a storage unit such as a memory for storing the authorization key. The first image tag includes but is not limited to a QR code and a bar code.

[0033] The storage unit in the controller is also used to store the unique identifier and the timestamp. By dynamically updating the first image tag, the real-time performance of the first image tag can be improved.

[0034] In some cases, technicians often cannot eliminate all tripping faults of disconnectors at once. Before completely eliminating the fault, technicians need to control the disconnector and reclose it multiple times. However, due to poor network signal and other factors, technicians may send multiple reclosing commands via mobile terminals in a short period of time. In this case, if the fault is not completely eliminated, the disconnector will trip frequently, which is not conducive to troubleshooting and maintenance of the disconnector.

[0035] By dynamically updating the first image tag, the reclosing command can also be dynamically updated. This allows technicians to rescan the first image tag each time they need to reclose the disconnector during troubleshooting. This prevents frequent reclosing of the disconnector due to misoperation. Even if the network signal is poor and the fault has not been completely resolved, the disconnector will not frequently close or trip if the technician sends multiple reclosing commands via a mobile terminal within a short period of time. This facilitates troubleshooting, inspection, and maintenance of the disconnector.

[0036] The disconnector is provided with a display component for displaying a first image label on the housing, so that the mobile terminal can obtain a unique identifier and a timestamp matching the disconnector by scanning the first image label and generate a reclosing instruction according to the unique identifier, timestamp and authorization key.

[0037] The controller in the disconnector verifies the unique identifier, timestamp and authorization key in the reclosing instruction, and after the unique identifier, timestamp and authorization key in the reclosing instruction are verified, drives the transmission component to operate and realize the reclosing operation of the disconnector. This can solve the problem in the prior art that the disconnector performs the reclosing operation immediately after receiving the reclosing instruction sent by the technician through the mobile terminal, lacks the judgment of the reclosing instruction, and is prone to accidents such as electric shock or fire due to erroneous reclosing operation.

[0038] In this embodiment, the isolating switch further includes a fault detection unit configured to detect a fault signal from the isolating switch and transmit the fault signal back to the controller. Fault signals include, but are not limited to, overcurrent, undervoltage, short circuit, and leakage. If no fault signal is received, the controller determines that the isolating switch is in a normal state.

[0039] Since the fault detection unit for detecting the fault signal of the isolating switch is a conventional technical means in this field, it will not be described in detail here.

[0040] The controller is in communication with the detection unit, and when it determines that the disconnector is in a normal state, generates an image instruction and sends it to the display component. The display component generates a first image tag storing a unique identifier and a timestamp according to the image instruction.

[0041] When the controller determines that the disconnector is in a normal state, it generates an image instruction and sends it to the display component, which can ensure that the disconnector performs the reclosing operation safely and effectively, and avoid the problem of re-tripping caused by reclosing due to the failure not being eliminated.

[0042] Accordingly, if Figure 2As shown, a disconnector control system includes a controller and a mobile terminal. The mobile terminal is bound to a user identity and is assigned an authorization key that matches the user identity. The mobile terminal is used to scan a first image tag displayed by a display component to obtain a unique identifier and a timestamp that match the disconnector. A reclosing instruction is generated based on the unique identifier, timestamp, and authorization key and sent to the controller. The controller is used to receive the reclosing instruction and verify the unique identifier, timestamp, and authorization key in the reclosing instruction. If the verification is successful, the controller controls the transmission component to drive the moving contact to operate to achieve the reclosing operation of the disconnector.

[0043] Specifically, the mobile terminal is in communication with the controller, and the controller stores a key generation algorithm. The key generation algorithm generates an authorization key according to user identity information and sends the key to the mobile terminal.

[0044] Preferably, the display component 2 is a display screen. The display component 2 dynamically updates a first image tag, which stores at least a unique identifier matching the disconnector and a timestamp. After dynamically updating the first image tag, the display component returns an updated timestamp to the controller.

[0045] In this way, by dynamically updating the first image tag, the reclosing instruction can be dynamically updated. Every time a technician needs to control the disconnector to reclose the circuit breaker during troubleshooting, they need to rescan the first image tag, avoiding frequent reclosing operations caused by incorrect operation of the disconnector.

[0046] The controller stores an authorization key, a unique identifier of the disconnector, and an updated timestamp. After receiving the reclosing instruction generated by the mobile terminal, it verifies the unique identifier, authorization key, and timestamp in the reclosing instruction based on the authorization key, the unique identifier of the disconnector, the updated timestamp, and the reclosing instruction stored in itself.

[0047] In the described disconnector control system, after a technician arrives on-site to troubleshoot a fault, they scan the first image tag using a mobile terminal. The mobile terminal then extracts the disconnector's unique identifier and timestamp from the first image tag. Using its stored authorization key and the extracted unique identifier and timestamp, the mobile terminal can generate a reclosing command specifically for the disconnector requiring reclosing.

[0048] After the mobile terminal generates a targeted reclosing instruction, the controller verifies the unique identifier, timestamp and authorization key in the reclosing instruction. After the verification is passed, the controller controls the movement of the transmission component to drive the moving contact to realize the reclosing operation of the disconnector, thereby avoiding the occurrence of erroneous reclosing operations. This solves the problem in the prior art that the disconnector performs the reclosing operation immediately after receiving the reclosing instruction sent by the technician through the mobile terminal, lacks the judgment of the reclosing instruction, and is prone to accidents such as electric shock or fire due to erroneous reclosing operations.

[0049] In addition, the mobile terminal uses its own stored authorization key and the extracted unique identifier and timestamp of the disconnector to specifically generate a reclosing instruction corresponding to the disconnector that needs to be reclosed. It can also prevent non-technical personnel from sending illegal reclosing instructions to the controller by scanning the first image tag, causing the disconnector to perform a reclosing operation.

[0050] In one embodiment, the controller is further configured to verify the unique identifier, authorization key, and timestamp in the reclosing instruction based on the authorization key, unique identifier of the disconnector, updated timestamp, and reclosing instruction stored in the controller. If the verification is successful, it is determined whether there is a fault signal in the disconnector. If so, the transmission component is locked. If not, the transmission component is controlled to move and drive the moving contact to move to realize the reclosing operation of the disconnector.

[0051] In this way, before the disconnector fault is resolved, technicians cannot drive the disconnector to reclose by sending a reclosing command to the controller, thereby avoiding secondary faults and fire accidents caused by forced reclosing operations of the disconnector.

[0052] In one embodiment, the disconnector control system further includes a second image tag storing at least a trip identifier, the second image tag being mounted on the operating handle of the disconnector and being configured to be captured only when the disconnector is in the trip state; the mobile terminal is further configured to capture a real-time image of the disconnector, generate an unlock instruction based on the real-time image and the authorization key, and send the unlock instruction to the controller; the controller receives the unlock instruction and extracts the real-time image and the authorization key in the unlock instruction, determines whether the real-time image includes both the first image tag and the second image tag, and if so, extracts and verifies the authorization key, the unique identifier and timestamp in the first image tag, and the trip identifier in the second image tag; after the authorization key, the unique identifier and timestamp in the first image tag, and the trip identifier in the second image tag are verified and it is determined that the disconnector has no fault signal, the transmission component is unlocked.

[0053] Here, the second image tag includes but is not limited to a QR code and a barcode.

[0054] After the controller locks the transmission component to prevent secondary faults and fire accidents caused by forced reclosing of the disconnector, if the transmission component needs to be unlocked, a technician needs to take a real-time image of the disconnector and send the real-time image and authorization key to the controller. After the authorization key, the unique identifier and timestamp in the first image tag, and the trip identifier in the second image tag are verified and it is determined that there is no fault signal on the disconnector, the controller unlocks the transmission component. In this way, the disconnector control system's unlocking operation of the transmission component includes multiple judgments and verifications of the technician's authorization key, fault signal, unique identifier, timestamp, and trip identifier, which can greatly improve the safety of the disconnector reclosing operation and avoid the occurrence of erroneous reclosing operations.

[0055] Furthermore, by installing a second image tag containing at least an opening identifier on the disconnector operating handle, the disconnector's open and closed states can be monitored without modifying the existing disconnector circuit structure. After troubleshooting the disconnector, technicians can use a mobile terminal to capture a real-time image containing the first and second image tags while the disconnector is in the open state and send it to the controller. This allows the disconnector's transmission components to be unlocked and reclosed safely and quickly.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. An isolating switch, comprising a transmission component, a moving contact, and a static contact installed in a housing, wherein the transmission component is in transmission connection with the moving contact and is configured to drive the moving contact to cooperate with the static contact to realize the opening and closing operation of the isolating switch, characterized in that: The isolating switch further includes a controller and a display component mounted on the isolating switch housing for displaying a first image label, wherein the first image label stores at least a unique identifier and a timestamp that match the isolating switch. The controller is configured to receive a reclosing instruction sent by a mobile terminal, verify the unique identifier, timestamp, and authorization key in the reclosing instruction, and if the verification is successful and there is no fault signal on the isolating switch, control the transmission component to actuate the moving contact to achieve a reclosing operation on the isolating switch. If the verification is successful and there is a fault signal on the isolating switch, lock the transmission component. After the controller locks the transmission component, if it is necessary to unlock the transmission component, a real-time image and an authorization key must be sent to the controller. The mobile terminal stores an authorization key, obtains a unique identifier and a timestamp matching the disconnector by scanning the first image tag, generates a reclosing instruction based on the unique identifier, timestamp and authorization key, and sends the reclosing instruction to the controller; The mobile terminal is further configured to capture a real-time image of the disconnector, generate an unlock instruction based on the real-time image and the authorization key, and send the unlock instruction to the controller. The controller receives the unlock instruction and extracts the real-time image and the authorization key from the unlock instruction, determines whether the real-time image includes both the first image tag and the second image tag, and if so, extracts and verifies the authorization key, the unique identifier and the timestamp in the first image tag, and the disconnect identifier in the second image tag. After the authorization key, the unique identifier and the timestamp in the first image tag, and the disconnect identifier in the second image tag are verified and it is determined that there is no fault signal on the disconnector, the transmission component is unlocked. The first image tag is dynamically updated, and after the display component dynamically updates the first image tag, it returns an updated timestamp to the controller.

2. The isolating switch according to claim 1, characterized in that: The mobile terminal at least comprises a scanning component for scanning the first image tag and a storage unit for storing the authorization key.

3. The isolating switch according to claim 2, characterized in that: The first image tag is a QR code or a barcode.

4. An isolating switch control system, characterized in that: The invention comprises a controller and a mobile terminal, wherein the mobile terminal is bound to a user identity and is assigned an authorization key matching the user identity. The mobile terminal is used to scan a first image tag displayed by a display component, obtain a unique identifier and a timestamp matching the disconnector, generate a reclosing instruction based on the unique identifier, timestamp and authorization key, and send the reclosing instruction to the controller. The controller is used to receive the reclosing instruction, verify the unique identifier, timestamp and authorization key in the reclosing instruction, and if the verification is successful and there is no fault signal on the disconnector, drive the moving contact to move by controlling the transmission component to achieve the reclosing operation of the disconnector. If the verification is successful and there is a fault signal on the disconnector, lock the transmission component. After the controller locks the transmission component, if it is necessary to unlock the transmission component, it is necessary to send a real-time image and the authorization key to the controller. The disconnector control system further includes a second image tag storing at least an opening identifier, the second image tag being mounted on an operating handle of the disconnector and configured to be captured only when the disconnector is in an opening state; the mobile terminal is further configured to capture a real-time image of the disconnector, generate an unlock instruction based on the real-time image and an authorization key, and send the unlock instruction to the controller; the controller receives the unlock instruction and extracts the real-time image and the authorization key from the unlock instruction, determines whether the real-time image includes both the first image tag and the second image tag, and if so, extracts and verifies the authorization key, the unique identifier and timestamp in the first image tag, and the opening identifier in the second image tag; and after the authorization key, the unique identifier and timestamp in the first image tag, and the opening identifier in the second image tag are verified and it is determined that the disconnector has no fault signal, performs an unlocking operation on the transmission component; The first image tag is dynamically updated, and after the display component dynamically updates the first image tag, it returns an updated timestamp to the controller.

5. The isolating switch control system according to claim 4, characterized in that: The mobile terminal at least comprises a scanning component for scanning the first image tag and a storage unit for storing the authorization key.

6. The isolating switch control system according to claim 5, characterized in that: The controller stores a key generation algorithm, which generates an authorization key based on user identity information.

7. The isolating switch control system according to claim 6, characterized in that: The first image tag is a QR code or a barcode.

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