A device for monitoring the operating status of disconnecting switches based on positioning

Abstract

The present invention discloses a positioning-based isolating switch action state monitoring device, comprising a satellite communication positioning unit, a main control unit, a power supply unit and a substation Internet of Things communication unit; the satellite communication positioning unit receives a power Beidou differential signal, calculates the device location information according to the received signal, and transmits the device location information to the main control unit; the main control unit determines the state position of the isolating switch according to the device location information and the pre-configured position and state mapping relationship information, and transmits the isolating switch state location information to the cloud main station through the WeChat communication positioning unit, and / or transmits the isolating switch state location information to the substation Internet of Things system through the substation Internet of Things communication unit. The present invention utilizes satellite positioning technology to achieve high-precision positioning of the device itself, so that reliable positioning of the knife switch position and judgment of the separation and closing state can be achieved when it is installed on the isolating switch knife switch.

Description

Technical Field

[0001] The invention relates to the technical field of power equipment status monitoring, in particular to a positioning-based isolating switch action status monitoring device. Background Art

[0002] Isolating switch is a commonly used equipment in the electric power field, mainly used for "isolating power supply, switching operation, and connecting and disconnecting low-current circuits". When the isolating switch is in the "open" state, there should be an obvious disconnection mark between the contacts; when in the "closed" state, the moving and static contacts should fit tightly to reliably carry the current in the circuit and avoid abnormal heating caused by poor contact.

[0003] At present, the industry has proposed advanced technologies such as "one-button" sequential control operation of substations. According to the relevant standards that "at least two indications with different principles or sources must change simultaneously to confirm that the equipment has been operated", the operating status of the disconnector should be confirmed by additional confirmation methods based on different principles in addition to the indications of the equipment itself. Summary of the invention

[0004] The purpose of the present invention is to provide a positioning-based isolating switch operation status monitoring device, which uses satellite positioning technology to achieve high-precision positioning of the device itself, so that when it is installed on the isolating switch knife switch, it can achieve reliable positioning of the knife switch position and judgment of the opening and closing state.

[0005] The technical solution adopted by the present invention is: a positioning-based isolating switch action status monitoring device, comprising a satellite communication positioning unit, a main control unit, a power supply unit and a substation Internet of Things communication unit, wherein the power supply unit is used to provide working power for the device;

[0006] The satellite communication positioning unit receives the electric Beidou differential signal, calculates the device location information according to the received signal, and transmits the device location information to the main control unit;

[0007] The main control unit determines the status position of the isolating switch based on the device location information and the pre-configured location and status mapping relationship information, and transmits the isolating switch status position information to the cloud main station through the WeChat communication positioning unit, and / or transmits the isolating switch status position information to the substation Internet of Things system through the substation Internet of Things communication unit.

[0008] Optionally, the preconfigured position and state mapping relationship information includes device position information when the isolating switch is in an open state, and device position information when the isolating switch is in a closed state;

[0009] The main control unit determines the state position of the disconnector according to the device position information and the pre-configured position and state mapping relationship information: the current device position information is matched with the device position information when the disconnector is in the open state and the closed state respectively, and the disconnector state corresponding to the device position information with a high matching degree is used as the current state of the disconnector.

[0010] Optionally, the device further comprises a human-machine interface unit, which is used to receive a position and mapping relationship configuration signal input from the outside and transmit it to the main control unit; wherein the position and mapping relationship configuration signal comprises configuration type information, and the configuration type comprises a separate position configuration and a combined position configuration;

[0011] In response to the configuration type information in the received position and mapping relationship configuration signal corresponding to the sub-position configuration, the main control unit configures the received device position information as the device position information when the isolation switch is in the sub-state;

[0012] In response to the configuration type information in the received position and mapping relationship configuration signal corresponding to the closed position configuration, the main control unit configures the received device position information as the device position information when the isolation switch is in the closed state.

[0013] Optionally, the satellite communication positioning module includes a public-private integrated communication module and a Beidou RTK module. The public-private integrated communication module receives the power Beidou differential signal and transmits it to the Beidou RTK module. The Beidou RTK module calculates the device position information based on the power Beidou differential data and transmits the calculation result to the main control unit.

[0014] Optionally, the public-private integrated communication module adopts a public-private integrated 4G / 5G communication module with Beidou baseband signal processing function. The combination of the public-private integrated 4G / 5G communication module and the Beidou RTK module can achieve centimeter-level positioning of the device itself.

[0015] Optionally, the device further includes a power intranet encryption module;

[0016] The main control unit receives the encrypted power Beidou differential signal through the power intranet encryption module;

[0017] The main control unit sends the isolating switch status monitoring result data to the power intranet encryption module for encryption, and the power intranet encryption module transmits the encrypted isolating switch status monitoring result data to the cloud master station system through the public-private integrated communication module.

[0018] Optionally, the substation Internet of Things communication unit adopts a Zigbee / LoRa communication module.

[0019] Optionally, the power supply unit includes an energy storage module and an inductive power supply module, and the energy storage module is used to provide working power to other unit modules of the device when the isolating switch is in the open position; when the isolating switch is in the closed position, the main control unit controls the inductive power supply module to obtain the electric energy signal from the line connected to the conductive rod of the isolating switch by induction, and provide working power to other unit modules of the device, or charge the energy storage unit at the same time.

[0020] On the other hand, the present invention also provides an application method of the aforementioned isolating switch operation status monitoring device, comprising:

[0021] Install the device on the conductive rod of the disconnector to be monitored;

[0022] Control the isolating switch to be in the split state, and send a position and mapping relationship configuration signal corresponding to the split position configuration to the device main control unit, so that the main control unit records the current device position information as the device position information when the isolating switch is in the split state;

[0023] Control the isolating switch to be in a closed state, and send a position and mapping relationship configuration signal corresponding to the closed position configuration to the device main control unit, so that the main control unit records the current device position information as the device position information when the isolating switch is in the closed state;

[0024] The device configured with the position and state mapping information is used to monitor the state of the disconnector in real time, obtain the real-time state and position information of the disconnector, and send it to the cloud master station and / or the substation Internet of Things system.

[0025] Optionally, after controlling the isolating switch to be in an open state or a closed state, a position and mapping relationship configuration signal is sent to a main control unit of the device through a human-machine interface unit of the device.

[0026] Beneficial Effects

[0027] The present invention utilizes Beidou satellite positioning technology to achieve high-precision positioning of the device itself. During configuration, it can record corresponding device position information when the isolating switch is in different states, thereby enabling reliable positioning of the switch position and judgment of the opening and closing state when the device is installed on the isolating switch.

[0028] At the same time, the present invention can make the device meet the requirements of power intranet access through the combination of the public-private integrated communication module and the power intranet encryption unit, so that all data during the use of the device is in the intranet encryption environment, which is safe and reliable and will not leak the device location information, ensuring the safety of public network operation. In addition, the present invention is easy to configure and operate, and the monitoring results are reliable, which can help to effectively confirm the operating status of the isolation switch.

[0029] In addition, the present invention adopts a dual power supply mode of inductive power supply + energy storage, in which the energy storage battery mainly powers the device when the isolating switch is in the open state. When in the closed state, the device can obtain working power through inductive power supply, and at the same time charge the energy storage battery, which can ensure the battery life of the device of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure shows the installation schematic diagram of the isolating switch operation status monitoring device of the present invention;

[0031] Figure 2 The figure shows a schematic diagram of the structure of an embodiment of the isolating switch operation status monitoring device of the present invention;

[0032] Figure 3 The figure is a schematic flow chart of the application method of the isolating switch operation status monitoring device of the present invention;

[0033] Figure 4 The figure shows the principle schematic diagram of the induction power taking module in the isolating switch operation status monitoring device of the present invention;

[0034] In the figure: 1-conductive rod, 2-induction coil, 01 isolating switch action status monitoring device installation position, 02-earthing switch, 03-wiring terminal, 04-main contact blade transmission shaft, 05-earthing switch transmission shaft, 06-bearing seat, 07-rod-shaped insulating support. DETAILED DESCRIPTION

[0035] The invention is further described below with reference to the accompanying drawings and specific embodiments.

[0036] Example 1

[0037] This embodiment introduces a positioning-based isolating switch action status monitoring device, referring to Figure 2 As shown, it includes a satellite communication positioning unit, a main control unit, a power supply unit and a substation Internet of Things communication unit. The power supply unit is used to provide working power for the device; the satellite communication positioning unit receives the power Beidou differential signal, calculates the device location information according to the received signal, and transmits the device location information to the main control unit; the main control unit determines the state position of the disconnector according to the device location information and the pre-configured position and state mapping relationship information, and transmits the disconnector state position information to the cloud main station through the WeChat communication positioning unit, and / or transmits the disconnector state position information to the substation Internet of Things system through the substation Internet of Things communication unit.

[0038] This embodiment uses satellite positioning technology to achieve high-precision positioning of the device itself, so that when it is installed on the disconnector switch, it can achieve reliable positioning of the switch position and judgment of the opening and closing state.

[0039] This embodiment also involves the following specific designs.

[0040] In order to enable the device to distinguish the state signal of the isolating switch according to the real-time position in actual work, the device of this embodiment needs to first configure the mapping relationship between the device position and the isolating switch state when it is used. The aforementioned pre-configured position and state mapping relationship information includes the device position information when the isolating switch is in the open state, and the device position information when the isolating switch is in the closed state. These configurations can be directly written into the device software, but in order to make the application of the device more convenient, this embodiment adopts the method of configuration before monitoring.

[0041] Therefore, the device of this embodiment is further provided with a human-machine interface unit, which is used to receive a position and mapping relationship configuration signal input from the outside and transmit it to the main control unit; wherein the position and mapping relationship configuration signal includes configuration type information, and the configuration type includes a separate position configuration and a combined position configuration;

[0042] In response to the configuration type information in the received position and mapping relationship configuration signal corresponding to the sub-position configuration, the main control unit configures the received device position information as the device position information when the isolation switch is in the sub-state;

[0043] In response to the configuration type information in the received position and mapping relationship configuration signal corresponding to the closed position configuration, the main control unit configures the received device position information as the device position information when the isolation switch is in the closed state.

[0044] The above-mentioned human-machine interface unit can be implemented as an existing human-machine interaction interface such as a button, a touch screen or an infrared remote controller. The configuration signal can be input multiple times, such as setting: a configuration start button, an open position confirmation button, a closed position confirmation button, etc. on the remote controller. A display unit can also be set on the device to display a reminder signal after the main control unit receives the device position information. The operator can first press the configuration start button, then control the open and closed state of the disconnector, and then press the open position or closed position confirmation button after the display unit sends a reminder signal. At this time, the main control unit can record the corresponding position and correspond to the open and closed state of the disconnector.

[0045] During the actual monitoring process, the main control unit determines the state position of the disconnector based on the device position information and the pre-configured position and state mapping relationship information, that is, matching the current device position information with the device position information when the disconnector is in the open state and the closed state, respectively, and taking the disconnector state corresponding to the device position information with a high degree of matching as the current state of the disconnector.

[0046] like Figure 2As shown, in this embodiment, the satellite communication positioning module includes a public-private integrated communication module and a Beidou RTK module. The public-private integrated communication module receives the electric Beidou differential signal and transmits it to the Beidou RTK module. The Beidou RTK module calculates the device position information based on the electric Beidou differential data and transmits the calculation result to the main control unit.

[0047] The public-private integrated communication module adopts the public-private integrated 4G / 5G communication module with Beidou baseband signal processing function. The combination of the public-private integrated 4G / 5G communication module and the Beidou RTK module can achieve centimeter-level positioning of the device itself.

[0048] The device also includes an intranet encryption module, through which the main control unit receives the encrypted Beidou differential signal of the power. For the isolating switch status monitoring result data, the main control unit first sends it to the intranet encryption module for encryption, and the intranet encryption module transmits the encrypted isolating switch status monitoring result data to the cloud master station system through the public-private integrated communication module.

[0049] The substation IoT communication unit uses Zigbee / LoRa communication module.

[0050] The power supply unit includes an energy storage module and an induction power supply module. The energy storage module is used to provide working power to other unit modules of the device when the isolating switch is in the off position. Figure 4 As shown, the induction power supply module includes an induction coil 2, which is wound around the outer periphery of the conductive rod 1. When the isolating switch is in the closed position, the main control unit controls the induction power supply module to obtain the electric energy signal from the line connected to the conductive rod of the isolating switch by induction, and provides working power to other unit modules of the device, or charges the energy storage unit at the same time. The charging and discharging circuits and related controls of the energy storage power supply can adopt existing technologies.

[0051] This embodiment can not only realize its own high-precision positioning and reliable judgment of the state of the isolating switch, but also meet the requirements for safe access to the power intranet. It is easy to configure and operate, and has a long battery life, which can ensure continuous and reliable monitoring of the state of the isolating switch.

[0052] Example 2

[0053] This embodiment introduces the application method of the isolating switch operation status monitoring device in embodiment 1. Figure 3 , methods include:

[0054] Install the device on the conductive rod 1 of the disconnector to be monitored, such as at installation position 01. Figure 1 As shown;

[0055] Control the isolating switch to be in the split state, and send a position and mapping relationship configuration signal corresponding to the split position configuration to the device main control unit through the human-machine interface unit, so that the main control unit records the current device position information as the device position information when the isolating switch is in the split state;

[0056] Control the isolating switch to be in a closed state, and send a position and mapping relationship configuration signal corresponding to the closed position configuration to the device main control unit through the human-machine interface unit, so that the main control unit records the current device position information as the device position information when the isolating switch is in the closed state;

[0057] The device configured with the position and state mapping information is used to monitor the state of the disconnector in real time, obtain the real-time state and position information of the disconnector, and send it to the cloud master station and / or the substation Internet of Things system.

[0058] In this embodiment, the human-machine interface unit can be implemented as an existing human-machine interaction interface such as a button, a touch screen or an infrared remote controller. The configuration signal can be input multiple times, such as setting a configuration start button, an open position confirmation button, a closed position confirmation button, etc. on the remote controller. A display unit can also be set on the device to display a reminder signal after the main control unit receives the device position information. The operator can first press the configuration start button, then control the open and closed state of the disconnector, and then press the open position or closed position confirmation button after the display unit sends a reminder signal. At this time, the main control unit can record the corresponding position and correspond to the open and closed state of the disconnector.

[0059] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.

Claims

1. A positioning-based isolating switch action status monitoring device, characterized in that: It includes a satellite communication positioning unit, a main control unit, a power supply unit, a substation Internet of Things communication unit and a human-machine interface unit. The power supply unit is used to provide working power for the device; The satellite communication positioning unit receives the electric Beidou differential signal, calculates the device location information according to the received signal, and transmits the device location information to the main control unit; The main control unit determines the state position of the disconnector according to the device position information and the pre-configured position and state mapping relationship information, and transmits the disconnector state position information to the cloud main station through the satellite communication positioning unit, and transmits the disconnector state position information to the substation Internet of Things system through the substation Internet of Things communication unit; the pre-configured position and state mapping relationship information includes: the device position information when the disconnector is in the open state, and the device position information when the disconnector is in the closed state; The human-machine interface unit is used to receive a position and mapping relationship configuration signal input from the outside, and transmit it to the main control unit; wherein the position and mapping relationship configuration signal includes configuration type information, and the configuration type includes a separate position configuration and a combined position configuration; In response to the configuration type information in the received position and mapping relationship configuration signal corresponding to the sub-position configuration, the main control unit configures the received device position information as the device position information when the isolation switch is in the sub-state; In response to the configuration type information in the received position and mapping relationship configuration signal corresponding to the closed position configuration, the main control unit configures the received device position information as the device position information when the isolation switch is in the closed state; The configuration method of the position and state mapping relationship includes: Install the device on the conductive rod of the disconnector to be monitored; Control the isolating switch to be in the split state, and send a position and mapping relationship configuration signal corresponding to the split position configuration to the main control unit, so that the main control unit records the current device position information as the device position information when the isolating switch is in the split state; The isolating switch is controlled to be in a closed state, and a position and mapping relationship configuration signal corresponding to the closed position configuration is sent to the main control unit, so that the main control unit records the current device position information as the device position information when the isolating switch is in the closed state.

2. The positioning-based isolating switch action status monitoring device according to claim 1 is characterized in that: The main control unit determines the state position of the disconnector according to the device position information and the pre-configured position and state mapping relationship information: the current device position information is matched with the device position information when the disconnector is in the open state and the closed state respectively, and the disconnector state corresponding to the device position information with a high matching degree is used as the current state of the disconnector.

3. The positioning-based isolating switch action status monitoring device according to claim 1 or 2, characterized in that: The satellite communication positioning unit includes a public-private integrated communication module and a Beidou RTK module. The public-private integrated communication module receives the electric power Beidou differential signal and transmits it to the Beidou RTK module. The Beidou RTK module calculates the device position information based on the electric power Beidou differential data and transmits the calculation result to the main control unit.

4. The positioning-based isolating switch action status monitoring device according to claim 3 is characterized in that: The public-private integrated communication module adopts a public-private integrated 4G or 5G communication module with Beidou baseband signal processing function.

5. The positioning-based isolating switch action status monitoring device according to claim 3 is characterized in that: It also includes a power intranet encryption module; The main control unit receives the encrypted power Beidou differential signal through the power intranet encryption module; The main control unit sends the isolating switch status monitoring result data to the power intranet encryption module for encryption, and the power intranet encryption module transmits the encrypted isolating switch status monitoring result data to the cloud main station through the public-private integrated communication module.

6. The positioning-based isolating switch action status monitoring device according to claim 1 or 2, characterized in that: The substation Internet of Things communication unit adopts a Zigbee or LoRa communication module.

7. The isolating switch action state monitoring device based on positioning according to claim 1 or 2 is characterized in that: The power supply unit includes an energy storage module and an inductive power supply module. The energy storage module is used to provide working power to other unit modules of the device when the isolating switch is in the open position; when the isolating switch is in the closed position, the main control unit controls the inductive power supply module to obtain the electric energy signal from the line connected to the conductive rod of the isolating switch by induction, and provide working power to other unit modules of the device, or charge the energy storage unit at the same time.

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