CN115662823A - Isolating switch and control system - Google Patents
Isolating switch and control system Download PDFInfo
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- CN115662823A CN115662823A CN202211304845.0A CN202211304845A CN115662823A CN 115662823 A CN115662823 A CN 115662823A CN 202211304845 A CN202211304845 A CN 202211304845A CN 115662823 A CN115662823 A CN 115662823A
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- reclosing
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- isolating switch
- unique identifier
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Abstract
The invention relates to the technical field of isolating switches, and provides an isolating switch and a control system, wherein the isolating switch comprises a transmission part, a moving contact, a static contact, a controller and a display part, wherein the transmission part, the moving contact, the static contact, the controller and the display part are arranged in a shell, the display part is used for displaying a first image label, the first image label at least stores a unique identifier and a timestamp which are matched with the isolating switch, the controller is used for receiving a reclosing instruction sent by a mobile terminal, verifying the unique identifier, the timestamp and an authorization key in the reclosing instruction, and if the verification is passed, the moving contact is driven to act by controlling the action of the transmission part so as to realize the reclosing operation of the isolating switch; the mobile terminal obtains a unique identifier and a timestamp matched with the isolating switch by scanning the first image tag, generates a reclosing instruction according to the unique identifier, the timestamp and the authorization key and sends the reclosing instruction to the controller, and the first image tag is dynamically updated. The invention can avoid the occurrence of wrong reclosing operation.
Description
Technical Field
The invention relates to the technical field of isolating switches, in particular to an isolating switch and a control system.
Background
In many cases, the isolating switch trips due to overcurrent, short circuit, leakage or undervoltage. After the technical personnel get to the site to remove the fault, the technical personnel can send an instruction to carry out reclosing operation on the disconnecting switch through the mobile terminal. Technical personnel drive isolator through the instruction and carry out reclosing operation, can avoid the electric shock risk that manual reclosing operation probably appears.
For an electrical cabinet housing with multiple disconnectors installed, it is possible that more than one disconnector is in the open state. Except for the isolating switch which is tripped due to overcurrent, short circuit, leakage or undervoltage, other isolating switches can be opened due to maintenance requirements. If the specific isolating switch is not switched on again in a targeted manner, the isolating switch which is switched off due to maintenance needs is switched on again, and an electric shock accident is easily caused. In addition, if a technician makes the disconnecting switch still having a fault perform reclosing operation through an instruction, the disconnecting switch is easy to have secondary fault, and in case of serious fault, the disconnecting switch can be also short-circuited to cause a fire accident.
In the prior art, the disconnecting switch performs reclosing operation after receiving a reclosing instruction sent by a technician through a mobile terminal, the identification of the reclosing instruction is lacked, and accidents such as electric shock or fire are easily caused by wrong reclosing operation.
Disclosure of Invention
Based on this, in order to solve the problems that in the prior art, after receiving a reclosing instruction sent by a technician through a mobile terminal, the disconnecting switch performs reclosing operation, the reclosing instruction is not judged, and accidents such as electric shock or fire are easy to happen due to wrong reclosing operation, the invention provides a disconnecting switch and a control system, and the specific technical scheme is as follows:
an isolating switch comprises a transmission part, a moving contact and a fixed contact which are arranged in a shell, wherein the transmission part is in transmission connection with the moving contact and is configured to drive the moving contact to act so as to be matched with the fixed contact, so that the switching-on and switching-off operation of the isolating switch is realized;
the method comprises the steps that an authorization key is stored in a mobile terminal, a unique identifier and a timestamp matched with an isolating switch are obtained by scanning a first image label, and a reclosing instruction is generated according to the unique identifier, the timestamp and the authorization key and is sent to a controller;
and the first image label is dynamically updated, and after the display part dynamically updates the first image label, an updated time stamp is returned to the controller.
The controller in the isolating switch verifies the unique identifier, the timestamp and the authorization key in the reclosing instruction, and drives the transmission part to act after the unique identifier, the timestamp and the authorization key in the reclosing instruction pass the verification, so that the reclosing operation of the isolating switch is realized.
In addition, the first image tag is dynamically updated, so that the real-time performance of the first image tag can be improved, and a reclosing instruction can be dynamically updated. Therefore, when a technician removes a fault and needs to control the disconnecting switch to carry out reclosing operation, the first image label needs to be rescanned, and frequent reclosing actions caused by misoperation of the disconnecting switch are avoided.
Further, the mobile terminal at least comprises a scanning component for scanning the first image label and a storage unit for storing the authorization key.
Further, the first image label is a two-dimensional code or a bar code.
An isolating switch control system comprises a controller and a mobile terminal, wherein the mobile terminal is bound with a user identity and is distributed with an authorization key matched with the user identity, the mobile terminal is used for scanning a first image label displayed by a display part, acquiring a unique identifier and a timestamp matched with an isolating switch, generating a reclosing instruction according to the unique identifier, the timestamp and the authorization key and sending the reclosing instruction to the controller, the controller is used for receiving the reclosing instruction, verifying the unique identifier, the timestamp and the authorization key in the reclosing instruction, and if the verification is passed, a transmission part is controlled to act to drive a moving contact to act so as to realize the reclosing operation of the isolating switch;
and after the display part dynamically updates the first image label, returning an updated time stamp to the controller.
Further, the mobile terminal at least comprises a scanning component for scanning the first image label and a storage unit for storing the authorization key.
Further, a key generation algorithm is stored in the controller, and the key generation algorithm generates an authorization key according to the user identity information.
Further, the first image label is a two-dimensional code or a bar code.
Drawings
The invention will be further understood from the following description in conjunction with the accompanying drawings. The components in the figures are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the embodiments. Like reference numerals designate corresponding parts throughout the different views.
Fig. 1 is a schematic diagram of an overall structure of an isolating switch according to an embodiment of the invention;
fig. 2 is a schematic diagram of an overall structure of an isolator control system according to an embodiment of the present invention.
Description of reference numerals:
1. a housing; 2. a display member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to embodiments thereof. It should be understood that the detailed description and specific examples, while indicating the scope of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" used herein do not denote any particular order or quantity, but rather are used to distinguish one element from another.
As shown in fig. 1, an isolation switch in an embodiment of the present invention includes a transmission component, a movable contact, and a fixed contact installed in a housing 1, where the transmission component is in transmission connection with the movable contact and configured to drive the movable contact to move to cooperate with the fixed contact, so as to implement an opening and closing operation of the isolation switch.
The specific structures and installation modes of the transmission part, the moving contact and the static contact belong to the conventional technical means in the field, so the details are not repeated herein.
The isolating switch further comprises a controller and a display part 2 which is arranged on an isolating switch shell and used for displaying a first image tag, wherein the first image tag at least stores a unique identifier and a timestamp which are matched with the isolating switch, the controller is used for receiving a reclosing instruction sent by the mobile terminal, verifying the unique identifier, the timestamp and an authorization key in the reclosing instruction, and if the verification is passed, driving a moving contact to act by controlling a transmission part so as to realize the reclosing operation of the isolating switch;
the method comprises the steps that an authorization key is stored in a mobile terminal, a unique identifier and a timestamp matched with an isolating switch are obtained by scanning a first image tag, and a reclosing instruction is generated according to the unique identifier, the timestamp and the authorization key and is sent to a controller;
and the display part returns an updated time stamp to the controller after dynamically updating the first image label.
The mobile terminal comprises at least a scanning component, such as a camera, for scanning the first image label and a storage unit, such as a memory, for storing the authorization key. The first image tag includes, but is not limited to, a two-dimensional code and a barcode.
The memory unit in the controller is also used to store the unique identifier and the time stamp. By dynamically updating the first image tag, the real-time performance of the first image tag can be improved.
In some cases, technicians often cannot eliminate all trip faults of a disconnector at once. Before the fault is completely eliminated, a technician needs to control the disconnecting switch to carry out multiple reclosing operations. However, due to poor network signals, technicians may send multiple reclosing commands through the mobile terminal in a short time. At this time, if the fault is not completely eliminated, the isolating switch is frequently tripped, which is not beneficial to the fault elimination and the overhaul and maintenance of the isolating switch.
By dynamically updating the first image tag, the reclosing instruction can be dynamically updated. Therefore, when a technician removes a fault and needs to control the disconnecting switch to carry out reclosing operation, the first image label needs to be rescanned, and frequent reclosing actions caused by misoperation of the disconnecting switch are avoided. Even if network signals are poor and technicians send multiple reclosing commands through the mobile terminal in a short time under the condition that faults are not completely eliminated, the disconnecting switch cannot be frequently switched on or tripped, and the troubleshooting and the overhauling maintenance of the faults of the disconnecting switch can be conveniently carried out by the technicians.
The isolating switch is provided with a display part for displaying the first image label on the shell, so that the mobile terminal can acquire the unique identifier and the time stamp matched with the isolating switch by scanning the first image label and generate a reclosing instruction according to the unique identifier, the time stamp and the authorization key.
The controller in the isolating switch verifies the unique identifier, the timestamp and the authorization key in the reclosing instruction, and drives the transmission part to act after the unique identifier, the timestamp and the authorization key in the reclosing instruction pass the verification, so that the reclosing operation of the isolating switch is realized.
In this embodiment, the isolating switch further comprises a fault detection unit, and the fault detection unit is used for detecting a fault signal of the isolating switch and feeding the fault signal back to the controller. Fault signals include, but are not limited to, over-current, under-voltage, short circuit, and leakage. If the fault signal is not received, the controller judges that the isolating switch is in a normal state.
Since the fault detection unit for detecting the fault signal of the isolating switch belongs to the conventional technical means in the field, the details are not described herein.
The controller is in communication connection with the detection unit, when the isolating switch is judged to be in a normal state, an image instruction is generated and sent to the display part, and the display part generates a first image label stored with a unique identifier and a timestamp according to the image instruction.
When the controller judges that the isolating switch is in a normal state, the controller generates an image instruction and sends the image instruction to the display part, so that the isolating switch can be ensured to safely and effectively execute reclosing operation, and the problem of secondary tripping caused by reclosing due to the fact that faults are not eliminated is avoided.
Correspondingly, as shown in fig. 2, an isolator control system includes a controller and a mobile terminal, the mobile terminal is bound with a user identity and is allocated with an authorization key matched with the user identity, the mobile terminal is configured to scan a first image tag displayed by a display unit, obtain a unique identifier and a timestamp matched with an isolator, generate a reclosing instruction according to the unique identifier, the timestamp and the authorization key, and send the reclosing instruction to the controller, the controller is configured to receive the reclosing instruction, verify the unique identifier, the timestamp and the authorization key in the reclosing instruction, and if the verification is passed, drive a moving contact to act by controlling a transmission unit to realize reclosing operation of the isolator;
specifically, the mobile terminal is in communication connection with the controller, a key generation algorithm is stored in the controller, and the key generation algorithm generates an authorization key according to the user identity information and sends the authorization key to the mobile terminal.
Preferably, the display part 2 is a display screen. The display section 2 dynamically updates the first image tag storing at least the unique identifier matching the disconnector and a time stamp. The display component returns an updated timestamp to the controller after dynamically updating the first image tag.
Therefore, the reclosing instruction can be dynamically updated by dynamically updating the first image tag. Technical personnel need to scan the first image label again each time when removing faults and needing to control the isolating switch to carry out reclosing operation, so that frequent reclosing actions of the isolating switch caused by misoperation are avoided.
The controller stores an authorization key, a unique identifier of the isolating switch and an updated timestamp, and verifies the unique identifier, the authorization key and the timestamp in the reclosing instruction according to the authorization key, the unique identifier of the isolating switch, the updated timestamp and the reclosing instruction stored in the controller after receiving the reclosing instruction generated by the mobile terminal.
In the disconnecting switch control system, after a technician goes to the site and eliminates a fault, the mobile terminal is used for scanning the first image tag, and the mobile terminal can extract the unique identifier and the time stamp of the disconnecting switch through the first image tag. The mobile terminal can generate a reclosing instruction corresponding to the disconnecting switch needing to be subjected to reclosing operation in a targeted manner through the authorization key stored in the mobile terminal, the extracted unique identifier of the disconnecting switch and the timestamp.
After the reclosing instruction is generated by the mobile terminal in a targeted manner, the controller verifies the unique identifier, the timestamp and the authorization key in the reclosing instruction, and drives the moving contact to act to realize the reclosing operation of the isolating switch by controlling the action of the transmission part after the verification is passed, so that the occurrence of wrong reclosing operation can be avoided.
In addition, the mobile terminal generates a reclosing instruction corresponding to the isolating switch needing to be subjected to reclosing operation in a targeted manner through the authorization key stored in the mobile terminal and the extracted unique identifier and the timestamp of the isolating switch, and the situation that a non-technician sends an illegal reclosing instruction to the controller through scanning the first image tag so that the isolating switch can execute the reclosing operation can be prevented.
In one embodiment, the controller is further configured to verify the unique identifier, the authorization key and the timestamp in the reclosing instruction according to an authorization key, the unique identifier of the disconnecting switch, the updated timestamp and the reclosing instruction, if the unique identifier, the authorization key and the timestamp in the reclosing instruction pass the verification, determine whether the disconnecting switch has a fault signal, if so, lock the transmission part, and if not, control the transmission part to act, and drive the moving contact to act to realize the reclosing operation of the disconnecting switch.
Therefore, before the fault of the isolating switch is not relieved, a technician cannot drive the isolating switch to carry out reclosing operation by sending a reclosing instruction to the controller, and the occurrence of secondary fault and fire accident of the isolating switch caused by forced reclosing operation can be avoided.
In one embodiment, the disconnecting switch control system further comprises a second image tag at least storing the opening identifier, wherein the second image tag is installed on an operation handle of the disconnecting switch and is configured to be shot only when the disconnecting switch is in the opening state; the mobile terminal is also used for shooting a real-time image of the isolating switch, generating an unlocking instruction according to the real-time image and the authorization key and sending the unlocking instruction to the controller; the controller receives the unlocking instruction, extracts the real-time image and the authorization key in the unlocking instruction, judges whether the real-time image simultaneously comprises the first image label and the second image label, extracts and verifies the authorization key, the unique identifier and the timestamp in the first image label and the brake separating identifier in the second image label if the real-time image simultaneously comprises the first image label and the second image label, and carries out unlocking operation on the transmission component after the authorization key, the unique identifier and the timestamp in the first image label and the brake separating identifier in the second image label pass verification and judge that the isolating switch has no fault signal.
Here, the second image tag includes, but is not limited to, a two-dimensional code and a barcode.
After the controller locks the transmission component to avoid the occurrence of secondary faults and fire accidents of the isolating switch caused by forced reclosing operation, if the transmission component needs to be unlocked, technicians need to shoot real-time images of the isolating switch and send the real-time images and the authorization key to the controller. And the controller unlocks the transmission component after the authorization key, the unique identifier and the time stamp in the first image tag and the opening identifier in the second image tag pass verification and judge that the isolating switch has no fault signal. Therefore, the unlocking operation of the disconnecting switch control system on the transmission part comprises multiple judgment and verification of an authorized key, a fault signal, a unique identifier, a timestamp and a switching-off identifier of a technician, so that the safety of the reclosing operation of the disconnecting switch can be greatly improved, and the occurrence of wrong reclosing operation is avoided.
In addition, the second image tag at least storing the opening identifier is installed on the isolating switch operating handle, and the monitoring of the opening and closing state of the isolating switch can be realized without modifying the existing isolating switch circuit structure. After the fault of the isolating switch is eliminated, a technician shoots a real-time image containing the first image label and the second image label through the mobile terminal and sends the real-time image to the controller under the condition that the isolating switch is in an opening state, so that the unlocking operation can be safely and quickly carried out on the transmission part of the isolating switch, and the reclosing operation can be realized.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. An isolating switch comprises a transmission part, a moving contact and a fixed contact which are arranged in a shell, wherein the transmission part is in transmission connection with the moving contact and is configured to drive the moving contact to act so as to be matched with the fixed contact, so that the switching-on and switching-off operation of the isolating switch is realized;
the method comprises the steps that an authorization key is stored in a mobile terminal, a unique identifier and a timestamp matched with an isolating switch are obtained by scanning a first image tag, and a reclosing instruction is generated according to the unique identifier, the timestamp and the authorization key and is sent to a controller;
and the display part returns an updated time stamp to the controller after dynamically updating the first image label.
2. A disconnector according to claim 1, characterized in that the mobile terminal comprises at least scanning means for scanning the first image tag and a memory unit for storing the authorisation key.
3. A disconnector according to claim 2, in which the first image tag is a two-dimensional code or a bar code.
4. A disconnecting switch control system is characterized by comprising a controller and a mobile terminal, wherein the mobile terminal is bound with a user identity and is distributed with an authorization key matched with the user identity, the mobile terminal is used for scanning a first image label displayed by a display part, acquiring a unique identifier and a timestamp matched with a disconnecting switch, generating a reclosing instruction according to the unique identifier, the timestamp and the authorization key and sending the reclosing instruction to the controller, the controller is used for receiving the reclosing instruction, verifying the unique identifier, the timestamp and the authorization key in the reclosing instruction, and if the verification is passed, driving a moving contact to act by controlling a transmission part to realize the reclosing operation of the disconnecting switch;
and after the display part dynamically updates the first image label, returning an updated time stamp to the controller.
5. The disconnecting switch control system according to claim 4, wherein the mobile terminal comprises at least a scanning component for scanning the first image tag and a storage unit for storing the authorization key.
6. The isolator control system according to claim 5, wherein the controller has stored therein a key generation algorithm that generates the authorization key based on the user identity information.
7. The isolator control system of claim 6, wherein the first image tag is a two-dimensional code or a bar code.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211304845.0A CN115662823A (en) | 2022-10-24 | 2022-10-24 | Isolating switch and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211304845.0A CN115662823A (en) | 2022-10-24 | 2022-10-24 | Isolating switch and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115662823A true CN115662823A (en) | 2023-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211304845.0A Pending CN115662823A (en) | 2022-10-24 | 2022-10-24 | Isolating switch and control system |
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|---|---|
| CN (1) | CN115662823A (en) |
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2022
- 2022-10-24 CN CN202211304845.0A patent/CN115662823A/en active Pending
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