CN-122017417-A - Portable voltage non-contact anti-electricity-stealing detection system and method

CN122017417ACN 122017417 ACN122017417 ACN 122017417ACN-122017417-A

Abstract

The invention provides a portable voltage non-contact anti-electricity-stealing detection system and method, comprising a non-contact sampling subsystem, a multi-port communication subsystem, a host data processing subsystem, a meter reading test data display subsystem, a meter reading time and communication detection subsystem and a meter reading time period reading and setting subsystem, wherein the non-contact sampling subsystem is used for acquiring a wire voltage signal in a non-contact mode, sampling and measuring an error of a low-voltage metering device, sampling and measuring a current amplitude of a high-voltage line or a low-voltage line, the multi-port communication subsystem is used for carrying out wireless communication transmission of detection data through a built-in antenna array of a host, transmitting and reading data of the metering device to be detected of a communication port, the host data processing subsystem is used for carrying out transformation ratio measurement, line checking detection, harmonic analysis, electric quantity compensation and meter reading test, and each module is used for realizing transformation ratio measurement detection through program switching, and the meter reading test data display subsystem is used for displaying an ammeter alarm event, meter alarm event type statistics meter data, statistics meter event reading data, wiring inspection data and electric quantity compensation calculation data according to a query instruction.

Inventors

LIU XUN
FEI GUIHUAI
ZHU JIANBO
YANG YULE

Assignees

深圳市先行电气技术有限公司

Dates

Publication Date: 20260512
Application Date: 20260210

Claims (10)

1. Portable voltage non-contact anti-electricity-stealing detecting system, its characterized in that includes: The non-contact sampling subsystem acquires a wire voltage signal in a non-contact mode, performs non-contact voltage sampling, samples and measures errors of the low-voltage metering device, and samples and measures current amplitude values of a high-voltage circuit or a low-voltage circuit; The multi-port communication subsystem is used for carrying out wireless communication transmission of detection data through an antenna array built in a host, and transmitting and reading data of a metering device to be detected of a communication port; the host data processing subsystem is used for performing transformation ratio measurement, line checking detection, harmonic analysis, electric quantity compensation and meter reading test, and each module is used for realizing transformation ratio measurement detection through program switching; The meter reading test data display subsystem is used for performing meter reading timing and communication detection, and rate period reading and setting, and displaying meter alarm event, meter alarm event type statistics table data, statistics table event reading data, wiring inspection data and electric quantity compensation calculation data according to the query instruction.
2. The portable voltage non-contact anti-theft detection system of claim 1, wherein the non-contact sampling subsystem comprises: The non-contact voltage sampling module is used for acquiring a wire voltage signal in a non-contact mode based on a Hall sensing principle, and performing non-contact voltage sampling without damaging a lead seal or an open meter cover; The low-voltage metering error sampling module is used for sampling and measuring errors of a low-voltage metering device, wherein the errors comprise meter component metering device errors, current transformer transformation ratio, polarity and phase-to-phase correspondence; And the current sampling module is used for sampling and measuring the current amplitude of the high-voltage line or the low-voltage line.
3. The portable voltage non-contact anti-theft detection system of claim 1, wherein the multi-port communication subsystem comprises: the host built-in antenna module is used for carrying out wireless communication transmission of detection data through the host built-in antenna array; And the ammeter data communication module is used for transmitting and reading the data of the metering device to be detected of the communication port through various data interfaces.
4. The portable voltage non-contact anti-theft detection system of claim 1, wherein the host data processing subsystem comprises: The transformation ratio measuring module is used for carrying out electric power inspection and electric power detection on the low-voltage current transformer and carrying out high-voltage transformation ratio detection; the intelligent line checking detection module is used for selecting corresponding power factors according to the load property of the line to which the calibrated meter belongs, carrying out line checking detection of various corresponding power factors according to the selected various corresponding power factors, and obtaining a multi-power factor line checking detection record set; The harmonic analysis module is used for measuring harmonic waves, drawing a harmonic spectrum diagram and analyzing the percentage content of each subharmonic wave; The electric quantity supplementing module is used for sequentially arranging the electric meter alarm events from large to small according to the electric meter alarm events and generating an electric meter alarm event type statistical table according to the occurrence times of the electric meter alarm events and the occurrence accumulation time of the electric meter alarm events, screening the electric meter alarm events needing electric quantity supplementing and counting the electric meter alarm event types; And the meter replacement and compensation module is used for sampling current data during the replacement of the electric energy meter in real time through the clamp ammeter, accessing the terminal box for sampling through the voltage terminal, calculating and accumulating electric quantity in real time, and automatically calculating the electric quantity which should be withdrawn and compensated during the meter replacement after the meter replacement is finished.
5. The portable voltage non-contact anti-theft detection system according to claim 1, wherein the meter reading test data display subsystem comprises: The meter reading test module is used for performing meter reading time correction and communication detection, rate period reading and setting, a demand register, a demand indication value error test, frozen data, a load curve and time record, and prompting to input a meter address and supplement bits when the ammeter does not support a broadcast address or fails to read the meter; The data display module receives the inquiry command and displays the ammeter alarm event, ammeter alarm event type statistics table data, statistics table event reading data, wiring inspection data and electric quantity compensation calculation data according to the inquiry command.
6. The portable voltage non-contact anti-electricity-stealing detection method is characterized by comprising the following steps of: S1, acquiring a wire voltage signal in a non-contact mode, performing non-contact voltage sampling, sampling and measuring an error of a low-voltage metering device, and sampling and measuring a current amplitude of a high-voltage line or a low-voltage line; s2, carrying out wireless communication transmission of detection data through a built-in antenna array of the host, and transmitting and reading data of the metering device to be detected of the communication port; s3, performing transformation ratio measurement, line checking detection, harmonic analysis, electric quantity compensation and meter reading test, wherein the transformation ratio measurement detection is realized by each module through program switching; s4, performing meter reading and timing and communication detection, and rate period reading and setting, and displaying meter alarm event, meter alarm event type statistics table data, statistics table event reading data, wiring inspection data and electric quantity compensation calculation data according to the query instruction.
7. The portable voltage non-contact anti-theft detection method according to claim 6, wherein S1 comprises: s11, acquiring a wire voltage signal in a non-contact mode based on a Hall sensing principle, and performing non-contact voltage sampling without damaging a lead seal or opening a meter cover; s12, sampling and measuring errors of a low-voltage metering device, wherein the errors comprise meter composition metering device errors, current transformer transformation ratios, polarities and phase-to-phase correspondence; s13, sampling and measuring the current amplitude of the high-voltage line or the low-voltage line; The non-contact voltage sampling module comprises a voltage clamp, an A-phase voltage clamp, a B-phase voltage clamp, a C-phase voltage clamp and a phase-locking clamp, wherein the voltage clamp is designed by adopting an electromagnetic induction principle, a high-sensitivity induction coil and a signal conditioning circuit are arranged in the voltage clamp, insulating materials are wrapped outside the voltage clamp, and voltage signals can be obtained only by clamping on a wire when the voltage clamp is used without being directly and electrically connected with the wire.
8. The portable voltage non-contact anti-theft detection method according to claim 6, wherein S2 comprises: S21, performing wireless communication transmission of detection data through a built-in antenna array of a host; S22, transmitting and reading the data of the metering device to be detected of the communication port through various data interfaces.
9. The portable voltage non-contact anti-theft detection method according to claim 6, wherein S3 comprises: s31, realizing transformation ratio measurement and detection through program switching, wherein the transformation ratio measurement comprises the steps of carrying out electric power inspection and electric power detection on a low-voltage transformer and carrying out high-voltage transformation ratio detection; S32, intelligent line checking detection, namely selecting a corresponding power factor according to the load property of a line to which a calibrated meter belongs, performing line checking detection of a plurality of corresponding power factors according to the selected plurality of corresponding power factors, and acquiring a multi-power factor line checking detection record set; s33, harmonic analysis, namely measuring harmonic waves, drawing a harmonic spectrum diagram and analyzing the percentage content of each subharmonic wave; S34, electric quantity supplementing, namely, according to the electric meter alarm events, arranging the electric meter alarm events in sequence from large to small according to accumulated time, and according to the occurrence times of the electric meter alarm events and the occurrence accumulated time of the electric meter alarm events, screening the electric meter alarm events needing electric quantity supplementing, counting the types of the electric meter alarm events, and generating an electric meter alarm event type statistical table; And S35, replacing the ammeter and supplementing, sampling current data during replacement of the ammeter in real time through the clamp ammeter, sampling through a voltage terminal access junction box, calculating and accumulating electric quantity in real time, and automatically calculating the electric quantity to be replaced and supplemented during replacement of the ammeter.
10. The portable voltage non-contact anti-theft detection method according to claim 6, wherein S4 comprises: S41, performing meter reading and timing and communication detection, rate period reading and setting, a demand register, a demand indication error test, frozen data, a load curve and time recording, and prompting to input a meter address and supplement bits when the ammeter does not support a broadcast address or fails to read the meter; S42, receiving a query instruction, and displaying ammeter alarm event, ammeter alarm event type statistics table data, statistics table event reading data, wiring inspection data and electric quantity compensation calculation data according to the query instruction.

Description

Portable voltage non-contact anti-electricity-stealing detection system and method Technical Field The invention relates to the technical field of precise detection intelligent control data analysis information processing, in particular to a portable voltage non-contact anti-electricity-stealing detection system and method. Background At present, the electricity inspection in the power industry is a core link for guaranteeing the power supply safety, maintaining the power supply order and preventing the electric energy loss, the existing electricity inspection work depends on a contact type measuring method, namely an inspector needs to use tools such as a clamp ammeter, a universal meter and the like to directly contact an exposed conductor of an electric circuit or disconnect the circuit to access measuring equipment to obtain key electric parameters such as voltage, current, phase and the like, and the method exposes a plurality of inherent technical limitations in practical application, needs close-range operation and even contacts with electrified parts, so that the risk of personal electric shock is greatly increased. Particularly in high-voltage, complex or moist power distribution environments, security threats are more prominent, and contact measurement often requires power outage operations or disconnection of lines, which is tedious and time-consuming. For a dense distribution box, a concealed line or a high-rise ammeter box, the operation is very inconvenient, the efficiency of large-scale and quick census is severely restricted, and in the inspection of suspected electricity larceny or metering abnormality, a user is required to match with power failure and open electric facilities within the range of private property rights. The method is characterized in that the method comprises the steps of detecting the power consumption of a user, detecting the power consumption of the user, judging whether the power consumption of the user is normal or not, if the power consumption of the user is normal, detecting whether the power consumption is abnormal or not, and judging whether the power consumption is abnormal or not according to the detected power consumption of the user, if the power consumption is abnormal, judging whether the power consumption is abnormal or not, and judging whether the power consumption is abnormal or not. Disclosure of Invention The summary of the invention is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to identify the scope of the claimed subject matter, since a series of concepts in a simplified form are included in the summary of the invention, which is described in further detail in the detailed description. To at least partially solve the above problems, the present invention provides a portable voltage non-contact anti-theft detection system comprising: the non-contact sampling subsystem is used for acquiring a wire voltage signal in a non-contact mode, sampling non-contact voltage, sampling and measuring errors of a low-voltage metering device, and sampling and measuring current amplitude of a high-voltage circuit or a low-voltage circuit; The multi-port communication subsystem supports remote wireless coordination with the high-voltage clamp meter, realizes synchronous acquisition and safety isolation of high-voltage side data and low-voltage side data, realizes deep reading of full-dimension data of the ammeter, performs wireless communication transmission of detection data through a built-in antenna array of the host, and transmits and reads to-be-detected metering device data of a communication port. The system automatically calls an active/reactive electric quantity supplementing formula according to an average power factor, an instantaneous power factor and a settlement daily indication value to generate a compliance supplementing report, and carries out high-resolution harmonic analysis, namely, frequency spectrum drawing, real-time measurement of fundamental wave and various subharmonic components, dynamic spectrogram drawing, harmonic distortion rate (THD) analysis and various subharmonic percentage content analysis, data support for power quality evaluation, transformation ratio measurement, line detection, harmonic analysis, electric quantity supplementing and meter reading test, and various modules realize transformation ratio measurement detection through program switching; The meter reading test data display subsystem is used for performing meter reading timing and communication detection, rate period reading and setting, displaying meter alarm event, meter alarm event type statistics table data, statistics table event reading data, wiring inspection data, electric quantity compensation calculation data according to query instructions, integrating functions of meter reading timing, rate period setting, maximum demand test, load curve reading and the like through software logic switching in