Non-contact induction measurement air switch and handle remote control device

Abstract

The invention discloses a non-contact induction measurement air switch and handle remote control device which comprises a power distribution cabinet, a control terminal device is arranged in the power distribution cabinet, and the control terminal device is electrically connected with a remote control pressing plate, a remote control air switch, a remote control handle and a non-contact voltage sensor; the remote control handle is used for controlling the handle switch rotating shaft to rotate; the non-contact voltage sensor is used for acquiring voltage information of the remote control pressing plate in a non-contact manner; the control terminal device collects state information of the remote control pressing plate, the remote control air switch and the remote control handle and then forwards the state information to the intelligent terminal, the control terminal device establishes a remote control logic rule according to the state information and voltage information of the remote control pressing plate, and remote control is conducted according to the remote control logic rule. According to the invention, the pressing plate is ensured to be put and withdrawn in place through the position and the loop voltage, the normal state of the circuit breaker opening and closing control loop is ensured, the research control terminal device realizes interval remote control logic calculation and an edge calculation function of abnormal alarm, and successful remote control of primary equipment is ensured.

Description

Technical Field

[0001] This invention relates to the field of circuit breaker and handle remote control technology, specifically to a non-contact sensing measurement circuit breaker and handle remote control device. Background Technology

[0002] The primary reason for using circuit breakers (air switches) and remote control handles in existing technologies is the inherent drawbacks of traditional power distribution systems' manual operation modes, such as slow response, high risk to personnel, and low fault recovery efficiency. With the increasing demands for power supply reliability from smart grid construction, power systems urgently need to achieve remote and precise control of equipment status and rapid fault isolation. The combined application of circuit breakers and remote control handles effectively overcomes the spatial limitations of manual on-site operation, executing opening and closing actions via remote commands, significantly shortening fault handling time (from hours to minutes), reducing the risk of electric shock for maintenance personnel, and simultaneously meeting the operational needs of frequent equipment switching in distributed energy access scenarios. This has become an indispensable basic technical configuration in the upgrade of power distribution automation.

[0003] In existing technical implementations, the circuit breaker and handle remote control device mainly rely on the integration of multidisciplinary technologies to achieve remote control functions: 1) The electrical sensing layer uses an embedded current / voltage sensor group to collect line parameters in real time, and works with a photoelectric encoder to accurately identify the circuit breaker's opening and closing positions; 2) The communication layer builds a bidirectional transmission channel based on ZigBee or 4G wireless modules to realize command interaction between the control center and field equipment; 3) The control layer uses a programmable logic controller (PLC) to parse remote commands and drive a servo motor or electromagnetic coil actuator to complete the precise angle adjustment of the handle mechanism; 4) The software layer configures a fault feature database and logical discrimination algorithm, and combines it with a SCADA system to realize the automatic identification of abnormal states such as overcurrent and short circuit. Although this technical architecture achieves basic remote operation, there are still obvious technical coupling defects in each link.

[0004] For auxiliary components of power distribution terminals, such as pressure plates, circuit breakers, and handles, some domestic manufacturers have achieved pressure plate position status acquisition through technologies such as magnetic induction and micro-motion. However, they do not have the functions of acquiring pressure plate voltage and circuit status, as well as remote control function for pressure plates. Circuit breakers mainly acquire their status through auxiliary contacts. Some circuit breaker manufacturers provide remote control devices, which are installed on the side. On-site modifications require moving the adjacent circuit breaker to make room for installation, which is difficult to meet on-site modification needs. Switching handles mainly provide status through their auxiliary contacts and cannot currently achieve remote control function. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a non-contact sensing measurement device for circuit breakers and handle remote control, which solves the technical problems of lacking functions for acquiring voltage and circuit status of pressure plates and remote control functions of pressure plates, the inability to modify circuit breakers on-site, and the inability to achieve remote control functions when switching handles.

[0006] The present invention adopts the following technical solution.

[0007] A non-contact inductive measurement circuit breaker and handle remote control device, including a distribution cabinet, The power distribution cabinet is equipped with a control terminal device, which is electrically connected to the remote control pressure plate, remote control circuit breaker, remote control handle, and non-contact voltage sensor. The remote control handle is used to control the rotation of the handle switch shaft; the non-contact voltage sensor is used to collect voltage information of the remote control pressure plate non-contactly. The control terminal device collects the status information of the remote control pressure plate, remote control circuit breaker, and remote control handle and forwards it to the smart terminal. The control terminal device establishes remote control logic rules based on the status information and the voltage information of the remote control pressure plate, and performs remote control control according to the remote control logic rules. Preferably, the remote control pressure plate, remote control circuit breaker, remote control handle, and non-contact voltage sensor are all connected to the inner wall of the distribution cabinet by bolts or threads.

[0008] Preferably, the remote-controlled circuit breaker is internally provided with a status detection signal unit, which is used to detect the open / closed status of the remote-controlled circuit breaker in real time; The remote-controlled circuit breaker supports 1P-3P circuit breakers and has a plastic casing.

[0009] Preferably, the remote-controlled pressure plate includes a pressure plate body, an access control module, a voltage detection module, a CPU core control module, a motor, linkage components, a communication module, and a status detection module; the pressure plate body includes two ports, an upper port and a lower port; the access control module is used to control the connection between the two ports of the pressure plate body and the voltage detection module; the status detection module is used to detect the status information of the pressure plate body and the linkage components in real time; the motor and the linkage components directly cooperate with each other.

[0010] Preferably, after the CPU core control module receives a remote control command through the communication module, the access control module connects the upper port of the pressure plate body to the voltage detection module, and the voltage detection module performs voltage measurement to obtain the first voltage information; the access control module then connects the lower port of the pressure plate body to the voltage detection module, and the voltage detection module performs voltage measurement to obtain the second voltage information. The CPU core control module performs calculations and logical analysis on the first voltage information and the second voltage information, and determines the analysis result based on whether the first voltage information and the second voltage information are within a preset voltage range. When the analysis result is abnormal, the motor will not be driven to move the linkage components to perform the loading and unloading operation of the pressure plate body. When the analysis result is normal, the drive motor drives the linkage component to perform the engagement and disengagement operation of the pressure plate body; after the operation is completed, the voltage of the upper and lower ports of the pressure plate body is measured again to determine whether the engagement and disengagement were successful.

[0011] Preferably, the remote control logic rules are as follows: The system identifies the remote control command input by the user, aggregates the status information of the remote control pressure plate, remote control circuit breaker, remote control handle, and voltage information of the remote control pressure plate into a remote controllable state, and determines whether the remote controllable state meets the remote controllable conditions of the remote control command. When the remote control conditions are met, the remote control command is parsed to obtain the control command, and the control command is sent to the remote control pressure plate, remote control circuit breaker, and remote control handle in the control sequence to achieve programmed control.

[0012] Preferably, determining whether the remote controllable state meets the remote controllable conditions of the remote control command includes: Identify the remote control operation corresponding to the remote control command, determine whether the remote control operation to be executed conforms to the anti-misoperation rules or logic based on the remote control status, and obtain the corresponding judgment result.

[0013] Preferably, when the remote control capability is met, the remote control pressure plate, remote control circuit breaker, and remote control handle are increased by 1; otherwise, they are increased by 0.

[0014] The beneficial effects of this invention are that, compared with the prior art, this invention provides a non-contact sensing measurement circuit breaker and handle remote control device. It adopts a continuous pressure plate structure, enabling electric operation and status acquisition. The continuous remote control pressure plate communicates with a host computer via RS485 communication to achieve remote control and status acquisition. This device has functions such as electric operation, status acquisition, and RS485 communication, meeting the needs of different circuit breaker types and widths. The handle remote control device, with functions such as electric control conversion, status acquisition, and RS485 communication, along with the continuous remote control pressure plate, circuit breaker remote control device, and handle remote control device, enables electric control of auxiliary components in the power distribution terminal, thus achieving remote deployment and restoration of secondary safety measures without on-site personnel operation. The voltage measurement of the pressure plate circuit is determined by a non-contact inductive sensor and the status of the secondary circuit. Based on the piezoelectric effect and inverse piezoelectric effect of the piezoelectric ceramic sheet, a periodic vibration capacitive pressure plate voltage monitoring sensor is used to measure the voltage of the pressure plate circuit. The non-contact inductive sensor does not need to be connected to the pressure plate circuit and does not affect the normal operation of the pressure plate secondary circuit. By measuring the voltage value between the upper and lower ends of the pressure plate and ground, the normality of the control circuit can be determined, ensuring that the remote control operation can be executed correctly. The intelligent control terminal device can collect the status of the pressure plate and its voltage, circuit breaker and handle, and send it to the intelligent terminal via Ethernet. It has the advantages of auxiliary component status collection and transmission, remote control status aggregation, control command parsing, remote control logic calculation and programmed sequential control. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the circuit breaker and handle remote control device for non-contact induction measurement in this invention. Figure 2 This is a schematic diagram of the remote control pressure plate structure in this invention; Figure 3 This is a schematic diagram of the remote control circuit breaker structure in this invention; Figure 4 This is a schematic diagram of the remote control handle structure in this invention; Figure 5 This is a schematic diagram of the connection of the remote control pressure plate structure in this invention; Figure 6 This is a schematic diagram of the non-contact voltage sensor process structure in the example of this invention; Figure 7 This is a schematic diagram of the flow structure of the control terminal device in this invention.

[0016] Attached reference numerals: 1. Distribution cabinet; 2. Remote control handle; 3. Non-contact voltage sensor; 4. Remote control circuit breaker; 5. Remote control pressure plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0018] Please see Figure 1-7A non-contact inductive measurement circuit breaker and handle remote control device includes a power distribution cabinet 1, a terminal auxiliary component remote control pressure plate 5, a remote control circuit breaker 4, a remote control handle 2, and a non-contact voltage sensor 3, which communicate with the control terminal device using an RS485 communication interface and Modbus-RTU communication protocol.

[0019] The power distribution cabinet 1 is equipped with a control terminal device. The control terminal device is electrically connected to the remote control pressure plate 5, the remote control circuit breaker 4, the remote control handle 2 and the non-contact voltage sensor 3. The control terminal device uses network port 2 and network port 1 to remotely communicate with the main station via DTU. like Figure 4 As shown, the remote control handle 2 is used to control the rotation of the handle switch shaft; the non-contact voltage sensor 3 is used to collect voltage information of the remote control pressure plate 5 in a non-contact manner. After collecting the status information of the remote control pressure plate 5, the remote control circuit breaker 4, and the remote control handle 2, the control terminal device forwards it to the smart terminal. The control terminal device establishes remote control logic rules based on the status information and the voltage information of the remote control pressure plate 5, and performs remote control control according to the remote control logic rules.

[0020] The remote control pressure plate 5, remote control circuit breaker 4, remote control handle 2, and non-contact voltage sensor 3 are all connected to the inner wall of the distribution cabinet 1 by bolts and threads.

[0021] like Figure 3 As shown, Figure 3 This is a schematic diagram of a remote control circuit breaker. The remote control circuit breaker 4 has a status detection signal unit inside, which is used to detect the open / closed status of the remote control circuit breaker 4 in real time. The remote control circuit breaker 4 supports 1P-3P circuit breakers and features a plastic casing.

[0022] like Figure 2 , 5 As shown, the remote control pressure plate 5 includes a pressure plate body, an access control module, a voltage detection module, a CPU core control module, a motor, linkage components, a communication module, and a status detection module. The pressure plate body includes two ports, an upper port and a lower port. The access control module is used to control the connection between the two ports of the pressure plate body and the voltage detection module. The status detection module is used to detect the status information of the pressure plate body and linkage components in real time. The motor and linkage components directly cooperate with each other.

[0023] When the CPU core control module receives the remote control command through the communication module, the access control module connects the upper port of the pressure plate body to the voltage detection module, and the voltage detection module performs voltage measurement to obtain the first voltage information; the access control module then connects the lower port of the pressure plate body to the voltage detection module, and the voltage detection module performs voltage measurement to obtain the second voltage information. The CPU core control module performs calculations and logical analysis on the first voltage information and the second voltage information, and determines the analysis result based on whether the first voltage information and the second voltage information are within the preset voltage range. When the analysis result is abnormal, the motor will not be driven to move the linkage components to perform the loading and unloading operation of the pressure plate body. When the analysis result is normal, the drive motor drives the linkage component to perform the engagement and disengagement operation of the pressure plate body; after the operation is completed, the voltage of the upper and lower ports of the pressure plate body is measured again to determine whether the engagement and disengagement were successful.

[0024] like Figure 7 As shown, the remote control logic rules are as follows: The system identifies the remote control command input by the user, aggregates the status information of the remote control pressure plate 5, the remote control circuit breaker 4, the remote control handle 2, and the voltage information of the remote control pressure plate 5 into a remote controllable state, and determines whether the remote controllable state meets the remote controllable conditions of the remote control command. When the remote control conditions are met, the remote control command is parsed to obtain the control command, and the control command is sent to the remote control pressure plate 5, the remote control circuit breaker 4, and the remote control handle 2 in the control sequence to achieve programmed control.

[0025] Determining whether the remote control capability status meets the remote control command's conditions includes: Identify the remote control operation corresponding to the remote control command, determine whether the remote control operation to be executed conforms to the anti-misoperation rules or logic based on the remote control status, and obtain the corresponding judgment result.

[0026] When the conditions for remote control are met, the remote control pressure plate 5, the remote control circuit breaker 4, and the remote control handle 2 are pushed up by 1; otherwise, they are pushed up by 0.

[0027] In one embodiment, the control terminal device communicates with the intelligent terminal unit (DTU) using the Ethernet communication interface 104 protocol. The DTU communicates with the distribution automation master station via fiber optic or 4G wireless using the distribution automation 104 protocol. This enables remote control commands to be issued from the master station to the distribution terminal outlet pressure plate, line bay operating power circuit breaker, and remote-to-local switching handle of at least one distribution substation or ring network box, as well as to monitor the pressure plate circuit voltage.

[0028] The intelligent control terminal device collects the status information of the remote control pressure plate 5, remote control circuit breaker 4, and remote control handle 2 via RS485 communication, such as switch status, knife switch status, and protection function enabled / disabled status. It is then forwarded to the smart terminal via Ethernet 104 protocol. The smart control terminal device performs remote control logic calculations based on the collected status information and information such as the voltage of the pressure plate circuit.

[0029] In one embodiment, a remote control pressure plate 5 is connected to the inside of the power distribution cabinet 1 by bolts and threads, a remote control circuit breaker 4 is connected to the inside of the power distribution cabinet 1 by bolts and threads, and a remote control handle 2 is connected to the inside of the power distribution cabinet 1 by bolts and threads. The device is installed between the original KK handle switch and the screen panel, and is connected to the handle switch shaft through the internal structure to realize the remote control automatic gear switching function of the ordinary handle switch.

[0030] In one embodiment, the remote control handle 2 is an intelligent control box. The remote control handle 2 uses a plastic casing and has a high-performance CPU and rich external interfaces inside. The remote control handle 2 uses MODBUS and can receive control commands sent by the remote control host through 485 communication. It also drives the handle switch shaft to rotate through the internal motor and structural transmission components.

[0031] In one embodiment, the non-contact voltage sensor 3 includes a shielding electrode, a piezoelectric ceramic, a charged wire, and a sensing electrode. The shielding electrode, piezoelectric ceramic, charged wire, and sensing electrode are all electrically connected to the remote control circuit breaker 4, the remote control pressure plate 5, and the remote control handle 2. The electric field to be measured on the surface of the sensing electrode is E. The shielding electrode is grounded. Driven by the piezoelectric ceramic, the shielding electrode vibrates horizontally at a frequency ω, periodically blocking the sensing electrode. The amount of induced charge on the surface of the sensing electrode changes periodically, thereby generating an induced current. The amplitude of this current is proportional to the amplitude of the electric field to be measured. Electric field detection can be achieved by measuring this induced current. When the sensitive structure is in resonance, there are no easily worn components such as motors, resulting in a longer lifespan and better stability and reliability.

[0032] The beneficial effects of this invention are that, compared with the prior art, this invention can realize remote control technology for pressure plates, circuit breakers and handles, study non-contact induction measurement technology for pressure plate circuit voltage, ensure that the pressure plate is in place by position and circuit voltage, ensure that the circuit breaker opening and closing control circuit is in normal condition, and study the control terminal device to realize the edge computing function of remote control logic calculation and abnormal alarm, ensuring successful remote control of primary equipment.

[0033] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.

[0034] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.

[0035] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.

[0036] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages ​​such as Smalltalk, C++, etc., and conventional procedural programming languages ​​such as "C" or similar languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to execute the computer-readable program instructions, thereby implementing various aspects of this disclosure.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A non-contact induction measurement air switch and handle remote control device, comprising a power distribution cabinet (1), characterized in that: the inside of the power distribution cabinet (1) is provided with a control terminal device, which is electrically connected with a remote control pressure plate (5), a remote control air switch (4), a remote control handle (2) and a non-contact voltage sensor (3) respectively; the remote control handle (2) is used for controlling the rotation of the handle switch shaft; the non-contact voltage sensor (3) is used for non-contact acquisition of voltage information of the remote control pressure plate (5); the control terminal device transmits the state information of the remote control pressure plate (5), the remote control air switch (4) and the remote control handle (2) to an intelligent terminal, establishes a controllable logic rule according to the state information and the voltage information of the remote control pressure plate (5), and controls remotely according to the controllable logic rule.

2. The non-contact induction measurement air switch and handle remote control device according to claim 1, characterized in that: the remote control pressure plate (5), the remote control air switch (4), the remote control handle (2) and the non-contact voltage sensor (3) are all connected on the inner wall of the power distribution cabinet (1) through bolts.

3. The non-contact induction measurement air switch and handle remote control device according to claim 1, characterized in that: the inside of the remote control air switch (4) is provided with a state detection signal unit, which is used for real-time detection of the on / off state of the remote control air switch (4) and then sends the state to the control terminal device; the remote control air switch (4) supports 1P-3P air switch, and the remote control air switch (4) adopts a plastic shell.

4. The non-contact induction measurement air switch and handle remote control device according to claim 2, characterized in that: the remote control pressure plate (5) comprises a pressure plate body, a linkage component and a state detection module; the state detection module is used for real-time detection of the state information of the pressure plate body and the linkage component and then sends the state information to the control terminal device. the remote control pressure plate (5) further comprises an access control module, a voltage detection module, a CPU core control module, a communication module and a motor; the motor is drivingly connected with the linkage component; the pressure plate body comprises two ports, i.e. an upper port and a lower port; the access control module is used for connecting the two ports of the pressure plate body with the voltage detection module; 5. The non-contact inductively measured space switch and handle remote control device of claim 4, wherein: after the CPU core control module receives a remote control instruction through the communication module, the access control module connects the upper port of the pressure plate body with the voltage detection module, the voltage detection module measures the voltage of the pressure plate body to obtain first voltage information; then the access control module connects the lower port of the pressure plate body with the voltage detection module, and the voltage detection module measures the voltage of the pressure plate body to obtain second voltage information; the CPU core control module processes and analyzes the first voltage information and the second voltage information, and determines an analysis result according to whether the first voltage information and the second voltage information are within a preset voltage range; when the analysis result is abnormal, the motor does not drive the linkage component to operate the pressure plate body. ​ When the analysis result is normal, the motor driving linkage member performs a putting-off operation on the platen body; after the putting-off operation is completed, the upper port and the lower port of the platen body are measured again, and it is judged whether the putting-off is successful.

6. The remote control device for air switch and handle according to claim 1, characterized in that: The controllable logic rule is as follows: The remote control instruction input by the user is identified, and the state information of the remote control platen (5), the remote control air switch (4), and the remote control handle (2) and the voltage information of the remote control platen (5) are aggregated into a controllable state, and it is judged whether the controllable state satisfies the controllable condition of the remote control instruction; When it is judged that the controllable condition is satisfied, the remote control instruction is analyzed, a control instruction is obtained, the control instruction is issued to the remote control platen (5), the remote control air switch (4), and the remote control handle (2) according to a control sequence, and programmed control is realized.

7. The non-contact inductively measured space switch and handle remote control device of claim 6, wherein: It is judged whether the controllable state satisfies the controllable condition of the remote control instruction, including: The remote control operation corresponding to the remote control instruction is identified, and it is judged according to the controllable state whether the remote control operation to be executed conforms to the anti-misoperation rule or logic, and a corresponding judgment result is obtained.

8. The remote control device for air switch and handle according to claim 7, characterized in that: When the controllable condition is satisfied, 1 is sent to the remote control platen (5), the remote control air switch (4), and the remote control handle (2), and 0 is sent when the controllable condition is not satisfied.

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