Electricity stealing and leakage line current monitoring device and method, electronic equipment and storage medium

Abstract

The invention discloses a current monitoring device and method for an electricity stealing and leakage line, electronic equipment and a storage medium. The device comprises a combined expandable clip-on ammeter unit, a communication system and a data processing terminal, the combined expandable clip-on ammeter unit is in electromagnetic coupling connection with a main line and branch lines of a distribution network line to be tested and is also in communication connection with the communication system, and the communication system is in communication connection with the data processing terminal; the combined expandable clip-on ammeter unit collects current data of a main line and branch lines of a distribution network line to be tested. The communication system is used for feeding back the current data to the data processing terminal through wireless data transmission; and the data processing terminal is used for processing and calculating the current data based on the Thevenin theorem so as to obtain a judgment result of the electricity stealing and leakage circuit and judge whether to send out an alarm signal or not. The problem of checking electricity stealing and leakage of the distribution line in the transformer area is solved, and a checking vacuum section of electricity stealing and leakage of a main line and main branches of the distribution line in the low-voltage transformer area is filled; and the management and control efficiency and accuracy of the power distribution area are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of line loss management of distribution lines in substations, and in particular to a current monitoring device, method, electronic equipment and storage medium for a leakage current line. Background Art

[0002] As the previous electricity demand is constantly facing challenges such as high-quality development of the power grid, power grid companies, as the main battlefield of energy and electricity, are facing more and more serious line losses in the substations, especially in mountainous rural power. In addition to the limitations of main grid layout, maximum power supply radius, and current load characteristics, there are also a large number of losses caused by aging, failure, leakage, and power theft of low-voltage distribution lines in daily operation and maintenance work.

[0003] Based on the comprehensive management of line loss in distribution lines in the substation during daily inspections, the grassroots staff of the power supply station need to frequently conduct door-to-door surveys, long-term visits, big data comparisons, and line-by-line inspections to address the problem of power leakage caused by line grounding, insulation damage, and user overlap. In actual work, grassroots employees use white cats and metering automation data comparisons, most of which are based on meter terminals. From a certain perspective, when the power leakage does not come from the vicinity of the meter but occurs in the front lines of the main line, branch, and other low-voltage substations, the grassroots power supply station's investigation method is bound to be stretched. The power leakage that occurs in these parts is a blind spot for the investigation of grassroots power supply stations at this stage. At least in actual work, when these parts have overlaps, insulation damage, grounding, and other faults that are difficult to distinguish with the naked eye, it will significantly increase the difficulty of troubleshooting abnormal line loss problems. Therefore, it is necessary to introduce a device that can accurately monitor line leakage for a long time and automatically. Summary of the invention

[0004] The invention provides a current monitoring device and method for a power stealing line, an electronic device and a storage medium to solve the problem of current monitoring for a power stealing line.

[0005] In a first aspect, the present invention provides a current monitoring device for a leakage current line, comprising:

[0006] A combined expandable clamp ammeter unit, a communication system and a data processing terminal; the combined expandable clamp ammeter unit is electromagnetically coupled to the main line and each branch line of the distribution network line to be tested, the combined expandable clamp ammeter unit is communicatively connected to the communication system, and the communication system is communicatively connected to the data processing terminal;

[0007] The combined expandable clamp ammeter unit is used to collect current data of the main line and each branch line of the distribution network line to be tested, and transmit the current data to the communication system;

[0008] The communication system is used to feed back the current data to the data processing terminal via wireless data transmission;

[0009] The data processing terminal is used to process and calculate the current data based on the Thevenin theorem to obtain a judgment result of a leakage circuit, and decide whether to issue an alarm signal according to the judgment result.

[0010] In a second aspect, the present invention provides a method for monitoring the current of a power stealing line, which is applied to a power stealing line current monitoring device, wherein the power stealing line current monitoring device comprises a combined expandable clamp ammeter unit, a communication system and a data processing terminal; the combined expandable clamp ammeter unit is electromagnetically coupled to a main line and each branch line of a distribution network line to be tested, the combined expandable clamp ammeter unit is communicatively connected to the communication system, and the communication system is communicatively connected to the data processing terminal;

[0011] The method comprises:

[0012] The combined expandable clamp ammeter unit collects current data of the main line and each branch line of the distribution network line to be tested, and transmits the current data to the communication system;

[0013] The communication system feeds back the current data to the data processing terminal via wireless data transmission;

[0014] The data processing terminal processes and calculates the current data based on the Thevenin theorem to obtain a judgment result of a leakage circuit, and decides whether to issue an alarm signal according to the judgment result.

[0015] In a third aspect, the present invention provides an electronic device, the electronic device comprising:

[0016] at least one processor; and

[0017] a memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for monitoring current in a leakage power line described in the second aspect of the present invention.

[0019] In a fourth aspect, the present invention provides a computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a processor to implement the method for monitoring current in a power leakage line as described in the second aspect of the present invention when executed.

[0020] In a fifth aspect, the present invention provides an electric power system, comprising the leakage current monitoring device of the power line described in the first aspect of the present invention.

[0021] The current monitoring device for the electric leakage circuit provided by the embodiment of the present invention includes a combined expandable clamp ammeter unit, a communication system and a data processing terminal; the combined expandable clamp ammeter unit is electromagnetically coupled to the main line and each branch line of the distribution network line to be tested, the combined expandable clamp ammeter unit is communicatively connected to the communication system, and the communication system is communicatively connected to the data processing terminal; the combined expandable clamp ammeter unit is used to collect the current data of the main line and each branch line of the distribution network line to be tested, and transmit the current data to the communication system; the communication system is used to feed back the current data to the data processing terminal through wireless data transmission; the data processing terminal is used to process and calculate the current data based on the Thevenin theorem to obtain the judgment result of the electric leakage circuit, and decide whether to issue an alarm signal according to the judgment result. The problem of electric leakage investigation of the distribution line in the substation area is solved, and the vacuum section of electric leakage investigation of the main line and main branch of the distribution line in the low-voltage substation area is filled; the control efficiency and accuracy of the line loss substation area and the abnormal substation area are improved; the workload of the employees of the grassroots power supply station is reduced, the work efficiency is improved, and the line loss substation area and the abnormal substation area can be automatically controlled in real time and accurately.

[0022] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of a current monitoring device for a leakage current line provided in Embodiment 1 of the present invention;

[0025] Figure 2 It is a structural schematic diagram of another leakage current monitoring device provided in the first embodiment of the present invention;

[0026] Figure 3 It is a structural schematic diagram of another leakage current monitoring device provided by the first embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of the structure of the power system provided by the second embodiment of the present invention;

[0028] Figure 5 This is a flow chart of a method for monitoring current in a leakage circuit provided by Embodiment 3 of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of an electronic device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] Figure 1 Schematic diagram of the structure of a current monitoring device for a leakage current line provided in the first embodiment of the present invention. This embodiment is applicable to the situation where the current of a leakage current line is monitored, such as Figure 1 As shown, the current monitoring device for the power leakage line includes: a combined expandable clamp ammeter unit 120, a communication system 130 and a data processing terminal 140, wherein the combined expandable clamp ammeter unit 120 is electromagnetically coupled to the main line of the distribution network line to be tested and each branch line 110, the combined expandable clamp ammeter unit 120 is communicatively connected to the communication system 130, and the communication system 130 is communicatively connected to the data processing terminal 140. The main line of the distribution network line to be tested and each branch line 110 are any low-voltage distribution lines in the substation area, and this embodiment does not impose any restrictions on the specific main line of the distribution network line to be tested and each branch line 110.

[0033] The combined expandable clamp ammeter unit 120 is used to collect current data of the main line and each branch line of the distribution network to be tested, and transmit the current data to the communication system.

[0034] The combined expandable clamp ammeter unit 120 is composed of a plurality of clamp ammeters, each of which can be used alone or in combination with other clamp ammeters.

[0035] The communication system 130 is used to feed back the current data to the data processing terminal via wireless data transmission.

[0036] The data processing terminal 140 is used to process and calculate the current data based on the Thevenin theorem to obtain a judgment result of a leakage circuit, and decide whether to issue an alarm signal according to the judgment result.

[0037] The core content of Thevenin's theorem is: the two ends of a linear network containing an independent voltage source, an independent current source and a resistor can be equivalent to a combination of an independent voltage source V and a series resistor R. Among them, the voltage source V is equal to the open circuit voltage of the network, and the resistor R is equal to the equivalent resistance when all independent sources inside the network are zero. By applying Thevenin's theorem, the complex circuit analysis process can be simplified and help solve various circuit problems, such as calculating current, voltage, power, etc.

[0038] When the current data is processed and calculated based on the Thevenin theorem to obtain the judgment result of the power leakage line, and whether to issue an alarm signal is decided based on the judgment result, it can be determined whether to issue an alarm signal based on the difference comparison between the main line current and the sum of the branch line currents, specifically including: if the difference between the main line current and the sum of the branch line currents is within a preset error range, the data judges that there is no abnormality in the current, there is no power leakage phenomenon, and it is monitored for a long time; if the difference between the main line current and the sum of the branch line currents is not within the preset error range, an alarm signal is generated through a buzzer to quickly and accurately approach the abnormal point.

[0039] When the data processing terminal 140 detects power theft or leakage in a line, it can decide to send out an alarm signal to remind the staff to go to the scene for processing and repair in time, reduce the power loss of the distribution network, and avoid the expansion of the leakage hazard.

[0040] The leakage current line current monitoring device of the present embodiment is used to measure and collect the current load at the topological branch node, obtain the measurement results with high simultaneous rate, and thus intelligently judge the leakage current line section.

[0041] Figure 2 This is a schematic diagram of the structure of another leakage current monitoring device provided in the first embodiment of the present invention. In an optional embodiment, as Figure 2 As shown, the combined expandable clamp ammeter unit 120 includes a battery compartment, a communication module, and a current transformer unit, an ammeter unit, a first storage unit, and a first interface unit that are electrically connected in sequence, the first storage unit is also electrically connected to the communication module, and the battery compartment is electrically connected to the current transformer unit, the ammeter unit, the communication module, the first storage unit, and the first interface unit, respectively.

[0042] Optionally, the battery compartment of the combined expandable clamp ammeter unit 120 has a built-in rechargeable lithium battery, DC6V alkaline dry battery (1.5V AAA×4)*3, to provide power support for the entire unit. The power management unit of the communication system manages the power consumption of the Bluetooth module, DC9V alkaline dry battery (1.5V AA×6), to ensure that it operates stably at a suitable voltage for a long time.

[0043] In an optional embodiment, if Figure 2 As shown, the communication system 130 includes a display screen, a power management unit, and a second interface unit, a second storage unit, a control unit, and a Bluetooth module that are electrically connected in sequence. The second storage unit is also electrically connected to the display screen, and the power management unit is electrically connected to the second interface unit, the second storage unit, the display screen, the control unit, and the Bluetooth module, respectively. The control unit is responsible for processing control signals and data streams related to Bluetooth communication.

[0044] In an optional embodiment, if Figure 2 As shown, the data processing terminal 140 includes a third interface unit, a third storage unit, a CPU control module and a buzzer which are electrically connected in sequence. That is, the third storage unit is electrically connected to the CPU control module, and the CPU control module is electrically connected to the buzzer. Among them, the CPU control module is responsible for core processing and control functions, and usually uses an industrial-grade high-performance embedded processor, such as ARM9.

[0045] The remaining units or modules can be implemented using existing technologies, and this embodiment does not impose any restrictions on their specific implementation methods and functions.

[0046] In an optional embodiment, if Figure 2 As shown, the combined expandable clamp ammeter unit 120 includes a communication module, and the communication system 130 includes a Bluetooth module. The combined expandable clamp ammeter unit 120 is communicatively connected to the communication system 130 via the communication module; and the communication system 130 is communicatively connected to the data processing terminal 140 via the Bluetooth module.

[0047] Optionally, the communication module and the Bluetooth module are implemented using a BC26 module. The size of the BC26 module is only 17.7mm×15.8mm×2.0mm, which can meet the needs of terminal devices for small-size module products to the greatest extent, has the advantages of ultra-low power consumption, small size, simple development, and supports access platforms of different telecom operators. The BC26 module supports Bluetooth function.

[0048] Optionally, the communication protocol inside the leakage current monitoring device is the MQTT protocol, and the data enters the power supply company's distribution network management platform through the IoT proxy gateway. Exemplarily, when using the BC26 module for MQTT communication, it is necessary to first ensure that the BC26 module has been connected to the network and supports the MQTT protocol.

[0049] Figure 3 A schematic diagram of the structure of another leakage current monitoring device provided by an embodiment of the present invention, the leakage current monitoring device comprises a combined expandable clamp ammeter unit 120 and a communication system 130, such as Figure 3 As shown, the expandable clamp ammeter unit 120 includes a clamp head 1 (including a guide area), a detector 2, a POWER indicator light 3, a detector POWER key 4 (for power on / off control), and an insulating rod connector 5. The communication system 130 includes an antenna 6, a USB data download interface 7, a receiver host 8, an LCD screen 9, a function key area 10, a receiver POWER key 11 (for power on / off control), and reference numeral 12 is an insulating rod.

[0050] The operation process of the combined expandable clamp ammeter unit is as follows:

[0051] 1. Turn on and off the machine

[0052] Press the POWER button to turn on the machine and enter the test mode. If the POWER indicator flashes after turning on the machine, it means the battery voltage is low, please replace the battery.

[0053] 2. Data Transmission

[0054] Wireless transmission of test data function: When the meter is in test mode, the test results are transmitted to the communication system wirelessly. The communication system display screen displays the measured current in real time, and the display screen data changes with the current. When the combined expandable clamp ammeter unit is removed from the measured wire, the test results are not retained, and the display screen returns to zero. If the combined expandable clamp ammeter unit does not receive a signal or the combined expandable clamp ammeter unit is not turned on, the "-----" symbol is displayed.

[0055] The operation process of the communication system and data processing terminal is as follows:

[0056] 1. Turn on and off the machine

[0057] Press the POWER button to turn on the device. The LCD will display the data receiving mode. Indicates that the receiver battery voltage is low, reminding you to replace the battery. If the receiver is turned on for about 5 minutes without any operation, the LCD will flash for 10 seconds and the receiver will automatically shut down to reduce battery consumption. During the LCD flashing process, if you press any key without triggering an operation, the receiver will cancel the flash screen and continue to work. Press the POWER button again to shut down.

[0058] In data hold mode, press the POWER button to shut down the device.

[0059] In data review mode, press the POWER button to turn off the device.

[0060] In data deletion mode, press the POWER button to shut down the computer.

[0061] 2. Data Reception

[0062] 1) Turn on the device and enter the data receiving mode. If there is no signal or the detector is not turned on, “-----” will be displayed.

[0063] 2) Clamp the combined expandable clamp ammeter unit to the circuit under test (make sure the clamp head is fully closed). The receiver displays the test results in real time. If the meter displays the "OL" symbol, it means that the current of the circuit under test exceeds the upper limit range of the combined expandable clamp ammeter unit.

[0064] 3) When the current value exceeds the alarm value, the corresponding combined expandable clamp ammeter unit current display bar will flash on the right side Alarm symbol, when any channel alarms, a "beep--beep--beep" alarm sound will be emitted.

[0065] 4) If the receiver corresponds to the combined expandable clamp ammeter unit, the current display column on the right side will be displayed It indicates that the battery of the corresponding combined expandable clamp ammeter unit is low, and it reminds you to replace the battery.

[0066] 3. Data retention

[0067] In the receiving data mode, press the down arrow key, the receiver enters the data hold mode, the "HOLD" symbol is displayed, and the LCD display can be kept. Press the down arrow key again to unlock the data, exit the data hold mode, and return to the receiving data mode.

[0068] 4. Data Storage

[0069] In the data receiving mode, press the down arrow key to hold the data, and the receiver will automatically number and store the currently held data. The receiver can store 800 sets of data. When the storage is full, the "FULL" symbol will be displayed. If the storage is full, the stored data must be deleted before it can be stored again.

[0070] 5. Data review

[0071] In the receiving data mode, press the MEM key to enter the data review mode, the "READ" symbol is displayed, and the stored data group 001 is automatically displayed. Press the up and down arrow keys to scroll up 1 group and down 1 group of stored data respectively; press the right and left arrow keys to scroll up 10 groups and down 10 groups of stored data respectively. When you scroll to the last group of stored data, continue to scroll up to return to the first group of data. In the first group of stored data, scroll down to display the last group of stored data. Press the MEM key again to exit the data review mode and return to the receiving data mode.

[0072] 6. Data Clearance

[0073] In the receiving data mode, press the left arrow key to enter the data deletion mode, and the cursor is at the "NO" position by default. Press the left and right arrow keys to move the cursor. When the cursor is at the "NO" position, press the MEM key to exit the data deletion mode without deleting and return to the receiving data mode; when the cursor is at the "YES" position, press the MEM key to delete the stored data and exit the data deletion mode and return to the receiving data mode.

[0074] 10. Alarm settings

[0075] In the receiving data mode, press the right arrow key to enter the alarm setting interface. The channel where the symbol is located indicates the current setting channel. Press the MEM key to switch the setting channel. You can also exit the alarm setting interface and save.

[0076] Press the up and down arrow keys to increase the alarm value by 1A and decrease it by 1A respectively; press the right and left arrow keys to increase the alarm value by 10A and decrease it by 10A respectively. When it is set to 0, it means the alarm function is turned off.

[0077] 7. Power saving mode

[0078] In the receiving data mode or data hold mode, press the up arrow key to turn off the LCD backlight and enter the power saving mode; press the up arrow key again to turn on the LCD backlight and exit the power saving mode.

[0079] 8. Data upload

[0080] The data stored in the instrument can be uploaded to the computer. Connect the USB communication cable between the computer and the instrument, turn on the instrument, and run the monitoring software. If the software shows that the serial port is open and the connection is successful, the stored historical data can be read, uploaded to the computer and saved.

[0081] The monitoring software has online real-time monitoring and historical query functions, dynamic display, alarm indication, and has the functions of historical data reading, reviewing, saving, and printing.

[0082] The current monitoring device for the electric leakage circuit provided by the embodiment of the present invention includes a combined expandable clamp ammeter unit, a communication system and a data processing terminal; the combined expandable clamp ammeter unit is electromagnetically coupled with the main line and each branch line of the distribution network line to be tested, the combined expandable clamp ammeter unit is communicatively connected with the communication system, and the communication system is communicatively connected with the data processing terminal; the combined expandable clamp ammeter unit is used to collect the current data of the main line and each branch line of the distribution network line to be tested, and transmit the current data to the communication system; the communication system is used to feed back the current data to the data processing terminal through wireless data transmission; the data processing terminal is used to process and calculate the current data based on the Thevenin theorem to obtain the judgment result of the electric leakage circuit, and decide whether to send an alarm signal according to the judgment result. The problem of electric leakage investigation of the distribution line in the substation area is solved, and the vacuum section of electric leakage investigation of the main line and main branch of the distribution line in the low-voltage substation area is filled; the control efficiency and accuracy of the line loss substation area and the abnormal substation area are improved; the workload of the employees of the grassroots power supply station is reduced, the work efficiency is improved, and the line loss substation area and the abnormal substation area can be automatically controlled in real time and accurately.

[0083] Embodiment 2

[0084] Figure 4 This is a structural schematic diagram of a power system provided in Embodiment 2 of the present invention. The power system 500 includes the leakage current line monitoring device described in any one of the embodiments of the present invention. The power system 500 provided in the embodiment of the present invention has corresponding functional modules and beneficial effects of the leakage current line monitoring device.

[0085] Embodiment 3

[0086] Figure 5 The flowchart of a method for monitoring the current of a power transmission line provided in the third embodiment of the present invention is applicable to the situation of monitoring the current of a power transmission line. The method can be performed by a current monitoring device for a power transmission line, and the current monitoring device for a power transmission line includes a combined expandable clamp ammeter unit, a communication system and a data processing terminal; the combined expandable clamp ammeter unit is electromagnetically coupled to the main line and each branch line of the distribution network line to be tested, the combined expandable clamp ammeter unit is communicatively connected to the communication system, and the communication system is communicatively connected to the data processing terminal. The current monitoring device for a power transmission line can be implemented in the form of hardware and / or software, and the current monitoring device for a power transmission line can be configured in an electronic device.

[0087] like Figure 5 As shown, the method for monitoring the current of a leakage current line includes:

[0088] S101, the combined expandable clamp ammeter unit collects current data of the main line and each branch line of the distribution network line to be tested, and transmits the current data to the communication system;

[0089] S102, the communication system feeds back the current data to the data processing terminal through wireless data transmission;

[0090] S103, the data processing terminal processes and calculates the current data based on the Thevenin theorem to obtain a judgment result of the leakage circuit, and decides whether to issue an alarm signal according to the judgment result.

[0091] Embodiment 4

[0092] Figure 6 A schematic diagram of an electronic device 40 that can be used to implement an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0093] like Figure 6 As shown, the electronic device 40 includes at least one processor 41, and a memory connected to the at least one processor 41, such as a read-only memory (ROM) 42, a random access memory (RAM) 43, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 41 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 42 or the computer program loaded from the storage unit 48 to the random access memory (RAM) 43. In the RAM 43, various programs and data required for the operation of the electronic device 40 can also be stored. The processor 41, the ROM 42, and the RAM 43 are connected to each other through a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0094] A number of components in the electronic device 40 are connected to the I / O interface 45, including: an input unit 46, such as a keyboard, a mouse, etc.; an output unit 47, such as various types of displays, speakers, etc.; a storage unit 48, such as a disk, an optical disk, etc.; and a communication unit 49, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 49 allows the electronic device 40 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0095] The processor 41 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 41 executes the various methods and processes described above, such as the method for monitoring the current of a power leakage line.

[0096] In some embodiments, the method for monitoring the current of a power stealing line can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 48. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 40 via the ROM 42 and / or the communication unit 49. When the computer program is loaded into the RAM 43 and executed by the processor 41, one or more steps of the method for monitoring the current of a power stealing line described above can be performed. Alternatively, in other embodiments, the processor 41 can be configured to perform the method for monitoring the current of a power stealing line by any other appropriate means (for example, by means of firmware).

[0097] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0098] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0099] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in combination with an instruction execution system, device or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0100] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0101] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0102] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0103] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0104] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A current monitoring device for a leakage current line, characterized in that: include: Combined expandable clamp ammeter unit, communication system and data processing terminal; The combined expandable clamp ammeter unit is electromagnetically coupled to the main line and each branch line of the distribution network line to be tested, the combined expandable clamp ammeter unit is communicatively connected to the communication system, and the communication system is communicatively connected to the data processing terminal; The combined expandable clamp ammeter unit is used to collect current data of the main line and each branch line of the distribution network line to be tested, and transmit the current data to the communication system; The communication system is used to feed back the current data to the data processing terminal via wireless data transmission; The data processing terminal is used to process and calculate the current data based on the Thevenin theorem to obtain a judgment result of a leakage circuit, and decide whether to issue an alarm signal according to the judgment result.

2. The device for monitoring the current of a leakage current line according to claim 1, characterized in that: The combined expandable clamp ammeter unit includes a battery compartment, a communication module, and a current transformer unit, an ammeter unit, a first storage unit and a first interface unit that are electrically connected in sequence. The first storage unit is also electrically connected to the communication module, and the battery compartment is electrically connected to the current transformer unit, the ammeter unit, the communication module, the first storage unit and the first interface unit respectively.

3. The current monitoring device for a leakage current line according to claim 1, characterized in that: The communication system includes a display screen, a power management unit, and a second interface unit, a second storage unit, a control unit, and a Bluetooth module that are electrically connected in sequence. The second storage unit is also electrically connected to the display screen, and the power management unit is electrically connected to the second interface unit, the second storage unit, the display screen, the control unit, and the Bluetooth module, respectively.

4. The device for monitoring the current of a leakage current line according to claim 1, characterized in that: The data processing terminal comprises a third interface unit, a third storage unit, a CPU control module and a buzzer which are electrically connected in sequence.

5. The device for monitoring the current of a leakage current line according to claim 1, characterized in that: The combined expandable clamp ammeter unit includes a communication module, the communication system includes a Bluetooth module, and the combined expandable clamp ammeter unit is communicatively connected with the communication system via the communication module; The communication system is connected to the data processing terminal through the Bluetooth module.

6. The device for monitoring the current of a leakage current line according to claim 5, characterized in that: The communication module and the Bluetooth module are implemented using BC26 modules.

7. The device for monitoring the current of a leakage current line according to claim 6, characterized in that: The communication protocol inside the leakage current monitoring device is the MQTT protocol.

8. A method for monitoring current in a power leakage circuit, characterized in that: Applicable to a current monitoring device for a power leakage line, the current monitoring device for the power leakage line comprises a combined expandable clamp ammeter unit, a communication system and a data processing terminal; the combined expandable clamp ammeter unit is electromagnetically coupled to the main line and each branch line of the distribution network line to be tested, the combined expandable clamp ammeter unit is communicatively connected to the communication system, and the communication system is communicatively connected to the data processing terminal; The method comprises: The combined expandable clamp ammeter unit collects current data of the main line and each branch line of the distribution network line to be tested, and transmits the current data to the communication system; The communication system feeds back the current data to the data processing terminal via wireless data transmission; The data processing terminal processes and calculates the current data based on the Thevenin theorem to obtain a judgment result of a leakage circuit, and decides whether to issue an alarm signal according to the judgment result.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the method for monitoring the current of a leakage power line as claimed in claim 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the method for monitoring current in a leakage power line as claimed in claim 8 when the processor executes the instructions.

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