CN112666390B - Electric energy detection metering system - Google Patents
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Abstract
The invention discloses an electric energy detection metering system, which is characterized in that a correction metering unit and an electricity larceny prevention unit are arranged, the power supply current and the load current in a circuit are analyzed and compared, and whether the current abnormality exists is judged, so that the electricity larceny prevention unit is utilized to calculate the electricity consumption conditions of three working days in the past, and then whether the electricity larceny behavior exists is judged, and a detection maintainer is informed to carry out line investigation, so that the use safety of the circuit is ensured; by arranging the correction metering unit and the load judging unit, the power supply stability is analyzed, meanwhile, the stability analysis is carried out on the partial pressure of the load equipment, the detection of the working state of the corresponding load equipment is further realized, the load equipment with related aging and poor working state is timely found, the load equipment is maintained and replaced, the working efficiency is improved, the risk of accidents is reduced, and meanwhile, the stability of circuit electric energy supply is ensured.
Description
Technical Field
The invention relates to a metering system, in particular to an electric energy detection metering system, and belongs to the field of electricity monitoring.
Background
Electric energy refers to the ability to perform work in various forms using electricity. The electric energy is not only an economic, practical, clean and easy-to-control and conversion energy form, but also a special product which is provided by the power department for the power consumer to ensure the quality jointly by the power generation, the power supply and the three parties, and also has a plurality of characteristics of the product, such as being measured, estimated, ensured or improved, and the electric energy is widely applied to various fields of power, illumination, chemistry, spinning, communication, broadcasting and the like, and is the main power for the development of scientific technology and the leap of people economy. Electrical energy plays a significant role in our lives.
At present, a plurality of instruments capable of detecting the electric energy quality are arranged, but most of instruments are used for detecting the electric energy quality at a certain point and cannot synchronously detect multiple points, and the existing electric energy monitoring and metering device is used for simply counting and recording electric energy, and is lack of timely finding and controlling the electricity stealing phenomenon, meanwhile, is lack of monitoring of load equipment, is convenient for timely finding hidden troubles of equipment power consumption, reduces production energy consumption and ensures production efficiency and continuity. To this end, we provide an electrical energy detection metering system.
Disclosure of Invention
The invention aims to provide an electric energy detection metering system, which is characterized in that a correction metering unit and an electricity larceny prevention unit are arranged, so that the analysis and comparison are carried out on the power supply current and the load current in a circuit, and whether the current abnormality exists is judged, so that the electricity larceny prevention unit is utilized to calculate the electricity consumption conditions of three working days in the past, so that whether the electricity larceny exists is judged, and a detection maintainer is informed to carry out line investigation, so that the electricity larceny phenomenon is found and examined in time, the use safety of the circuit is ensured, and the economic loss is reduced; by arranging the correction metering unit and the load judging unit, the power supply stability is analyzed, meanwhile, the stability analysis is carried out on the partial pressure of the load equipment, when the partial pressure of the load is unstable, the power consumption condition of the load equipment is monitored and calculated, so that the detection of the working state of the corresponding load equipment is realized, the load equipment with relevant aging and poor working state is timely found, the load equipment with relevant aging and poor working state is maintained and replaced, the working efficiency is improved, the risk of accidents is reduced, and meanwhile, the stability of circuit power supply is ensured.
The technical problems solved by the invention are as follows:
(1) How to analyze and compare the power supply current and the load current in the circuit by arranging the correction metering unit and the electricity larceny prevention unit, and judge whether the current abnormality exists, so that the electricity larceny prevention unit is utilized to calculate the power consumption conditions of the past three working days, judge whether the electricity larceny behavior exists, and inform detection maintenance personnel to conduct line inspection, thereby solving the problems that the economic loss and the circuit safety reduction are caused by the difficulty in timely finding the electricity larceny phenomenon which is difficult to solve in the prior art;
(2) How to analyze the power supply stability by arranging the correction metering unit and the load judging unit, and simultaneously analyze the stability of the partial pressure of the load equipment, and monitor and calculate the power consumption condition of the load equipment when the partial pressure of the load is unstable, thereby realizing the detection of the working state of the corresponding load equipment, and solving the problem that the load equipment which is combined into the power grid in the prior art has ageing and the like and can not be timely found for maintenance.
The aim of the invention can be achieved by the following technical scheme: the electric energy detection metering system comprises a data acquisition unit, a registration login unit, a data storage unit, a correction metering unit, a signal identification unit, an electricity larceny prevention unit and a load discrimination unit;
the data acquisition unit is used for transmitting the power supply voltage data, the power supply current data, the load partial pressure data and the load partial pressure data to the data storage unit together with the data acquisition time for storage;
the data storage unit is used for storing load specification data of each load device, wherein the load specification data comprise load working current data and load working voltage data, and each load in the data storage unit is used for storing daily working time length data;
the correction metering unit performs stability analysis on the current and the voltage in the circuit to obtain a current abnormal signal, a voltage supply unstable signal and a voltage division unstable signal, and transmits the current abnormal signal, the voltage supply unstable signal and the voltage division unstable signal to the signal identification unit;
the signal identification unit is used for carrying out identification processing on the current abnormal signal, the voltage supply unstable signal and the voltage division unstable signal, converting the current abnormal signal into an electricity stealing detection signal and sending the electricity stealing detection signal to the electricity stealing prevention unit when the current abnormal signal is identified, starting a counter to record the frequency of the voltage supply unstable signal in one month, and sending the frequency of the voltage supply unstable signal to a mobile phone terminal of a detection maintainer when the frequency of the voltage supply unstable signal in one month is larger than a preset frequency threshold value, and extracting the equipment number in the voltage division unstable signal and sending the equipment number to the load identification unit when the voltage division unstable signal is identified;
when the electricity larceny prevention unit receives an electricity larceny detection signal, the electricity consumption conditions in the past thirty working days are detected and judged, and the obtained line detection signal is sent to a mobile phone terminal of a detection maintenance person;
the load discriminating unit receives the equipment number, then carries out working condition discrimination analysis on the load equipment corresponding to the equipment number, recognizes the obtained normal load power consumption signal and abnormal load power consumption signal, does not carry out any processing when recognizing the normal load power consumption signal, extracts the equipment number and converts the abnormal load power consumption signal into an equipment maintenance replacement signal to be transmitted to a mobile phone terminal of a detection maintainer.
The invention further technically improves that: the registration login unit is used for submitting detection maintenance personnel information through the mobile phone terminal by the detection maintenance personnel, and sending the detection maintenance personnel information which is successfully registered to the data storage unit for storage, wherein the detection maintenance personnel information comprises a name, an age, an job time and a mobile phone number authenticated by the identity real name.
The invention further technically improves that: the specific steps of the stability analysis by the correction metering unit are as follows:
step S31: extracting power supply voltage data and power supply current data from a data storage unit and marking the power supply voltage data and the power supply current data as GYi and GLi respectively, extracting each load partial pressure data and each load partial pressure data as FYI j and FLi j respectively, wherein i represents a time point number of data acquisition, j represents equipment numbers of different loads in a circuit, i=1, 2,3 … … n1, j=1, 2,3 … … n2;
step S32: the correction metering unit is preset with a heating consumption coefficient and a geomagnetic field influence coefficient, and marks the heating consumption coefficient and the geomagnetic field influence coefficient as alpha and beta respectively, and load split data acquired at the same acquisition time point in the circuit are substituted into the calculation type
Load confluence data HL i are obtained;
step S33: substituting the power supply current data, the heating consumption coefficient and the geomagnetic field influence coefficient into a calculation formula:
obtaining actual power supply current data ZLI, wherein，0.9<α+β<1, e represents a natural constant in mathematics;
step S34: calculating the difference value of the actual power supply current data and the load confluence data, carrying out ratio operation on the difference value calculation result and the actual power supply current data to obtain a current difference value coefficient, correcting a metering error allowance coefficient preset in a metering unit, judging that the current is normal when the current difference value coefficient is smaller than or equal to the metering error allowance coefficient, not carrying out any treatment, judging that the current is abnormal when the current difference value coefficient is larger than the metering error allowance coefficient, and generating a current abnormality signal;
step S35: mean value calculation is carried out on the power supply voltage data, and GYi is brought into calculation type
Obtaining supply voltage average value data GYS, substituting the supply voltage data and the supply voltage average value data into the calculation type
And similarly, carrying out standard deviation operation on each load partial pressure data to obtain each load partial pressure standard deviation sj, respectively comparing the power supply voltage standard deviation and the load partial pressure standard deviation with a preset standard deviation threshold, when the power supply voltage standard deviation and each load partial pressure standard deviation are smaller than the preset standard deviation threshold, not carrying out any processing, when the power supply voltage standard deviation is larger than or equal to the preset standard deviation threshold, generating a power supply unstable signal, when the load partial pressure standard deviation is larger than or equal to the preset standard deviation threshold, generating a partial pressure unstable signal, extracting corresponding equipment numbers and binding the equipment numbers with the partial pressure unstable signal.
The invention further technically improves that: the specific steps for checking and judging the electricity consumption condition by the electricity larceny prevention unit are as follows:
step S41: extracting load specification data from a data storage unit, marking the load working current data in the data storage unit as I Fj, marking the load working voltage data in the data storage unit as UFj, and extracting daily working time length data Tj of each load from the data storage unit;
step S42: substituting the load operating current data, the load operating voltage data and the load operating time data into a calculation formula:
obtaining a single-day electric quantity consumption calculation value, obtaining daily electric quantity data Qk of power supply in the past thirty days from a power supply module, wherein k represents a date number, k=1, 2 and 3 … …, an electric energy loss coefficient gamma is arranged in an electricity larceny prevention unit, electric energy utilization efficiency theta is obtained according to a calculation formula theta=Q1/Qk (1-gamma), no electricity larceny behavior is judged when the electric energy utilization efficiency is greater than or equal to a set threshold value, no processing is performed, the electricity consumption date of the situation is recorded when the electric energy utilization efficiency is smaller than the set threshold value, the existence of electricity larceny behavior is judged when the recorded electricity consumption date is continuous, and a line checking signal is generated.
The invention further technically improves that: the specific steps of the load judging unit for judging and analyzing the working condition are as follows:
step S51: acquiring equipment numbers, marking corresponding load equipment, continuously acquiring real-time working current and real-time working voltage of the load equipment through a current measuring instrument and a voltage measuring instrument, calculating a product of the real-time current average value and the real-time voltage average value according to the real-time current average value and the real-time voltage average value to obtain a real-time power average value;
step S52: extracting load working current data and load working voltage data of corresponding load equipment from a data storage unit, performing product operation on the load working current data and the load working voltage data to obtain a load rated power, performing difference operation on an actual power average value and the load rated power to obtain a power difference value, starting a timer when the power difference value is greater than 0, accumulating time when the actual power average value is greater than the load rated power to generate accumulated time data, and performing ratio operation on the accumulated time data and load daily working time length data to obtain a time duty ratio;
step S53: when the time length ratio is more than or equal to thirty percent, judging that the power consumption of the load equipment is abnormal, generating a load power consumption abnormal signal, and when the time length ratio is less than thirty percent, judging that the power consumption of the load equipment is normal, and generating a load power consumption normal signal.
Compared with the prior art, the invention has the beneficial effects that:
1. when the invention is used, the data acquisition unit transmits power supply voltage data, power supply current data, load partial pressure data and load partial pressure data to the data storage unit together with data acquisition time for storage, the correction metering unit analyzes the stability of current and voltage in the circuit to obtain current abnormal signals, power supply unstable signals and partial pressure unstable signals and transmits the current abnormal signals and partial pressure unstable signals to the signal recognition unit, the signal recognition unit recognizes and processes the current abnormal signals, the power supply unstable signals and the partial pressure unstable signals, when the current abnormal signals are recognized, the current abnormal signals are converted into electricity stealing checking signals and transmitted to the electricity stealing prevention unit, when the electricity stealing checking signals are received by the electricity stealing prevention unit, the electricity consumption in the past thirty working days is checked and judged, the obtained line checking signals are transmitted to the mobile phone terminal of a detection maintainer, and the current abnormal conditions of the power supply current and the load in the circuit are analyzed and compared by the correction metering unit, so that the electricity stealing prevention unit is utilized to check the electricity consumption conditions of the past three working days, thereby judging whether the electricity stealing behavior exists, the line checking and the electricity stealing performance is ensured, and the electricity stealing safety is timely found by the line checking maintainer.
2. The signal identification unit is used for carrying out identification processing on the current abnormal signal, the voltage supply unstable signal and the voltage division unstable signal, when the voltage supply unstable signal is identified, a counter is started, the number of times of the voltage supply unstable signal in one month is recorded, when the number of times of the voltage supply unstable signal in one month is larger than a preset number threshold, the number of times of the voltage supply unstable signal is sent to a mobile phone terminal of a detection maintenance personnel, when the voltage division unstable signal is identified, the equipment number in the voltage division unstable signal is extracted and sent to the load identification unit, the load identification unit is used for carrying out working condition identification analysis on load equipment corresponding to the equipment number after receiving the equipment number, identifying the obtained normal power consumption signal and the abnormal power consumption signal, when the normal power consumption signal is identified, not carrying out any processing, extracting the equipment number and converting the abnormal power consumption signal into the equipment maintenance replacement signal to be simultaneously transmitted to the mobile phone terminal of the detection maintenance personnel, the stability analysis is carried out through setting the correction metering unit and the load identification unit, meanwhile, the stability is carried out stability analysis on the voltage division of the load equipment, the voltage division of the load equipment is carried out, when the voltage division unstable signal is detected, the corresponding power consumption state is detected, the power consumption state is well is detected, the work state is well is guaranteed, the work state is well is guaranteed, and the work is well is guaranteed, and the work is stable is well, and the work state is well is guaranteed.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
Fig. 1 is a system block diagram of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an electric energy detecting and metering system includes a data acquisition unit, a registration and login unit, a data storage unit, a correction metering unit, a signal identification unit, an electricity larceny prevention unit and a load discrimination unit;
the data acquisition unit is used for transmitting the power supply voltage data, the power supply current data, the load partial pressure data and the load partial pressure data to the data storage unit together with the data acquisition time for storage;
the data storage unit is used for storing load specification data of each load device, wherein the load specification data comprise load working current data and load working voltage data, and each load in the data storage unit is used for storing daily working time length data;
the correction metering unit performs stability analysis on the current and the voltage in the circuit to obtain a current abnormal signal, a voltage supply unstable signal and a voltage division unstable signal, and transmits the current abnormal signal, the voltage supply unstable signal and the voltage division unstable signal to the signal identification unit;
the signal identification unit is used for carrying out identification processing on the current abnormal signal, the voltage supply unstable signal and the voltage division unstable signal, converting the current abnormal signal into an electricity stealing detection signal and sending the electricity stealing detection signal to the electricity stealing prevention unit when the current abnormal signal is identified, starting a counter to record the frequency of the voltage supply unstable signal in one month, and sending the frequency of the voltage supply unstable signal to a mobile phone terminal of a detection maintainer when the frequency of the voltage supply unstable signal in one month is larger than a preset frequency threshold value, and extracting the equipment number in the voltage division unstable signal and sending the equipment number to the load identification unit when the voltage division unstable signal is identified;
when the electricity larceny prevention unit receives an electricity larceny detection signal, the electricity consumption conditions in the past thirty working days are detected and judged, and the obtained line detection signal is sent to a mobile phone terminal of a detection maintenance person;
the load discriminating unit receives the equipment number, then carries out working condition discrimination analysis on the load equipment corresponding to the equipment number, recognizes the obtained normal load power consumption signal and abnormal load power consumption signal, does not carry out any processing when recognizing the normal load power consumption signal, extracts the equipment number and converts the abnormal load power consumption signal into an equipment maintenance replacement signal to be transmitted to a mobile phone terminal of a detection maintainer.
The invention further technically improves that: the registration login unit is used for submitting detection maintenance personnel information through the mobile phone terminal by the detection maintenance personnel, and sending the detection maintenance personnel information which is successfully registered to the data storage unit for storage, wherein the detection maintenance personnel information comprises a name, an age, an job time and a mobile phone number authenticated by the identity real name.
The specific steps of the stability analysis by the correction metering unit are as follows:
step S31: extracting power supply voltage data and power supply current data from a data storage unit and marking the power supply voltage data and the power supply current data as GYi and GLi respectively, extracting each load partial pressure data and each load partial pressure data as FYI j and FLi j respectively, wherein i represents a time point number of data acquisition, j represents equipment numbers of different loads in a circuit, i=1, 2,3 … … n1, j=1, 2,3 … … n2;
step S32: the correction metering unit is preset with a heating consumption coefficient and a geomagnetic field influence coefficient, and marks the heating consumption coefficient and the geomagnetic field influence coefficient as alpha and beta respectively, and load split data acquired at the same acquisition time point in the circuit are substituted into the calculation type
Load confluence data HL i are obtained;
step S33: substituting the power supply current data, the heating consumption coefficient and the geomagnetic field influence coefficient into a calculation formula:
obtaining actual power supply current data ZLI, wherein 0.9<α+β<1, e represents a natural constant in mathematics;
step S34: calculating the difference value of the actual power supply current data and the load confluence data, carrying out ratio operation on the difference value calculation result and the actual power supply current data to obtain a current difference value coefficient, correcting a metering error allowance coefficient preset in a metering unit, judging that the current is normal when the current difference value coefficient is smaller than or equal to the metering error allowance coefficient, not carrying out any treatment, judging that the current is abnormal when the current difference value coefficient is larger than the metering error allowance coefficient, and generating a current abnormality signal;
step S35: mean value calculation is carried out on the power supply voltage data, and GYi is brought into calculation type
Obtaining supply voltage average value data GYS, substituting the supply voltage data and the supply voltage average value data into the calculation type
And similarly, carrying out standard deviation operation on each load partial pressure data to obtain each load partial pressure standard deviation sj, respectively comparing the power supply voltage standard deviation and the load partial pressure standard deviation with a preset standard deviation threshold, when the power supply voltage standard deviation and each load partial pressure standard deviation are smaller than the preset standard deviation threshold, not carrying out any processing, when the power supply voltage standard deviation is larger than or equal to the preset standard deviation threshold, generating a power supply unstable signal, when the load partial pressure standard deviation is larger than or equal to the preset standard deviation threshold, generating a partial pressure unstable signal, extracting corresponding equipment numbers and binding the equipment numbers with the partial pressure unstable signal.
The specific steps for checking and judging the electricity consumption condition by the electricity larceny prevention unit are as follows:
step S41: extracting load specification data from a data storage unit, marking the load working current data in the data storage unit as I Fj, marking the load working voltage data in the data storage unit as UFj, and extracting daily working time length data Tj of each load from the data storage unit;
step S42: substituting the load operating current data, the load operating voltage data and the load operating time data into a calculation formula:
obtaining a single-day electric quantity consumption calculation value, obtaining daily electric quantity data Qk of power supply in the past thirty days from a power supply module, wherein k represents a date number, k=1, 2,3 and … …, an electric energy loss coefficient gamma is arranged in an electricity larceny prevention unit, electric energy utilization efficiency theta is obtained according to a calculation formula theta=Q1/Qk (1-gamma), when the electric energy utilization efficiency is greater than or equal to a set threshold value, no electricity larceny behavior is judged, no processing is performed, and when the electric energy utilization efficiency is smaller than the set threshold value, recording is performedAnd when the recorded electricity consumption date is continuous, judging that the electricity stealing behavior exists, and generating a line checking signal.
The specific steps of the load judging unit for judging and analyzing the working condition are as follows:
step S51: acquiring equipment numbers, marking corresponding load equipment, continuously acquiring real-time working current and real-time working voltage of the load equipment through a current measuring instrument and a voltage measuring instrument, calculating a product of the real-time current average value and the real-time voltage average value according to the real-time current average value and the real-time voltage average value to obtain a real-time power average value;
step S52: extracting load working current data and load working voltage data of corresponding load equipment from a data storage unit, performing product operation on the load working current data and the load working voltage data to obtain a load rated power, performing difference operation on an actual power average value and the load rated power to obtain a power difference value, starting a timer when the power difference value is greater than 0, accumulating time when the actual power average value is greater than the load rated power to generate accumulated time data, and performing ratio operation on the accumulated time data and load daily working time length data to obtain a time duty ratio;
step S53: when the time length ratio is more than or equal to thirty percent, judging that the power consumption of the load equipment is abnormal, generating a load power consumption abnormal signal, and when the time length ratio is less than thirty percent, judging that the power consumption of the load equipment is normal, and generating a load power consumption normal signal.
Working principle: when the invention is used, firstly, the data acquisition unit transmits power supply voltage data, power supply current data, load partial pressure data and load shunt data to the data storage unit together with data acquisition time for storage, the correction metering unit analyzes the stability of current and voltage in a circuit to obtain current abnormal signals, voltage supply unstable signals and partial pressure unstable signals and transmits the current abnormal signals, the voltage supply unstable signals and the partial pressure unstable signals to the signal identification unit, the signal identification unit identifies the current abnormal signals, the voltage supply unstable signals and the partial pressure unstable signals, when the current abnormal signals are identified, the current abnormal signals are converted into electricity stealing checking signals and are transmitted to the electricity stealing checking unit, when the voltage supply unstable signals are identified, a counter is started, the number of times of occurrence of the voltage supply unstable signals in one month is recorded, when the number of occurrence of the voltage supply unstable signals in one month is larger than a preset number threshold, the number of times of occurrence of the voltage supply unstable signals is transmitted to a mobile phone terminal for detecting maintenance personnel, when the voltage partial pressure unstable signals are identified, the equipment numbers in the voltage unstable signals are extracted and transmitted to the load checking unit, when the voltage unstable signals are identified, the electricity consumption of the equipment numbers in the voltage unstable signals are transmitted to the load checking unit are identified, when the electricity consumption of the equipment numbers are detected, the electricity is detected, the electricity stealing checking signals are detected, the equipment numbers are received to the equipment numbers are detected to the equipment numbers are corresponding to the equipment numbers in the load checking unit, when the electricity consumption checking unit is detected, the equipment is judged to be normal, when the electricity consumption is detected, the equipment is normal, the equipment is has normal condition is detected, and the equipment is has normal condition, and extracting the equipment number, converting the abnormal load power consumption signal into an equipment maintenance replacement signal and transmitting the equipment maintenance replacement signal to a mobile phone terminal of a detection maintenance person.
In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The foregoing describes one embodiment of the present invention in detail, but the description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.
Claims (5)
1. An electric energy detection metering system, which is characterized in that: the system comprises a data acquisition unit, a registration and login unit, a data storage unit, a correction metering unit, a signal identification unit, an electricity larceny prevention unit and a load discrimination unit;
the data acquisition unit is used for transmitting the power supply voltage data, the power supply current data, the load partial pressure data and the load partial pressure data to the data storage unit together with the data acquisition time for storage;
the data storage unit is used for storing load specification data of each load device, wherein the load specification data comprise load working current data and load working voltage data, and each load in the data storage unit is used for storing daily working time length data;
the correction metering unit performs stability analysis on the current and the voltage in the circuit to obtain a current abnormal signal, a voltage supply unstable signal and a voltage division unstable signal, and transmits the current abnormal signal, the voltage supply unstable signal and the voltage division unstable signal to the signal identification unit;
the signal identification unit is used for carrying out identification processing on the current abnormal signal, the voltage supply unstable signal and the voltage division unstable signal, converting the current abnormal signal into an electricity stealing detection signal and sending the electricity stealing detection signal to the electricity stealing prevention unit when the current abnormal signal is identified, starting a counter to record the frequency of the voltage supply unstable signal in one month, and sending the frequency of the voltage supply unstable signal to a mobile phone terminal of a detection maintainer when the frequency of the voltage supply unstable signal in one month is larger than a preset frequency threshold value, and extracting the equipment number in the voltage division unstable signal and sending the equipment number to the load identification unit when the voltage division unstable signal is identified;
when the electricity larceny prevention unit receives an electricity larceny detection signal, the electricity consumption conditions in the past thirty working days are detected and judged, and the obtained line detection signal is sent to a mobile phone terminal of a detection maintenance person;
the load discriminating unit receives the equipment number, then carries out working condition discrimination analysis on the load equipment corresponding to the equipment number, recognizes the obtained normal load power consumption signal and abnormal load power consumption signal, does not carry out any processing when recognizing the normal load power consumption signal, extracts the equipment number and converts the abnormal load power consumption signal into an equipment maintenance replacement signal to be transmitted to a mobile phone terminal of a detection maintainer.
2. The electric energy detection and metering system according to claim 1, wherein the registration logging unit is used for submitting detection and maintenance personnel information through a mobile phone terminal, and sending the detection and maintenance personnel information which is successfully registered to the data storage unit for storage, wherein the detection and maintenance personnel information comprises a name, an age, an time of entering a job and a mobile phone number authenticated by a real name of the person.
3. The electrical energy detection metering system of claim 1, wherein the correction metering unit performs stability analysis as follows:
step S31: extracting power supply voltage data and power supply current data from a data storage unit and marking the power supply voltage data and the power supply current data as GYi and GLi respectively, extracting each load partial pressure data and each load partial pressure data as FYIj and FLij respectively, wherein i represents a time point number for collecting data, j represents equipment numbers of different loads in a circuit, i=1, 2,3 … … n1, j=1, 2,3 … … n2;
step S32: the correction metering unit is preset with a heating consumption coefficient and a geomagnetic field influence coefficient, and marks the heating consumption coefficient and the geomagnetic field influence coefficient as alpha and beta respectively, and load split data acquired at the same acquisition time point in the circuit are substituted into the calculation type
Load confluence data HLi is obtained;
step S33: substituting the power supply current data, the heating consumption coefficient and the geomagnetic field influence coefficient into a calculation formula:
obtaining actual power supply current data ZLI, wherein 0.9<α+β<1, e represents a natural constant in mathematics;
step S34: calculating the difference value of the actual power supply current data and the load confluence data, carrying out ratio operation on the difference value calculation result and the actual power supply current data to obtain a current difference value coefficient, correcting a metering error allowance coefficient preset in a metering unit, judging that the current is normal when the current difference value coefficient is smaller than or equal to the metering error allowance coefficient, not carrying out any treatment, judging that the current is abnormal when the current difference value coefficient is larger than the metering error allowance coefficient, and generating a current abnormality signal;
step S35: mean value calculation is carried out on the power supply voltage data, and GYi is brought into calculation type
Obtaining supply voltage average value data GYS, substituting the supply voltage data and the supply voltage average value data into the calculation type
Obtaining a standard deviation s of the power supply voltage, carrying out standard deviation operation on each load partial pressure data to obtain each load partial pressure standard deviation sj, respectively comparing the standard deviation of the power supply voltage, the standard deviation of the load partial pressure with a preset standard deviation threshold value, and when power is suppliedWhen the standard deviation of the voltage and the standard deviation of each load partial pressure are smaller than a preset standard deviation threshold, no processing is carried out, when the standard deviation of the power supply voltage is larger than or equal to the preset standard deviation threshold, a power supply unstable signal is generated, when the standard deviation of the load partial pressure is larger than or equal to the preset standard deviation threshold, a partial pressure unstable signal is generated, the corresponding equipment number is extracted, and the equipment number is bound with the partial pressure unstable signal.
4. The electric energy detecting and metering system according to claim 1, wherein the specific steps of checking and judging the electric energy use condition by the electricity larceny prevention unit are as follows:
step S41: extracting load specification data from the data storage unit, marking the load working current data in the data storage unit as IFj, marking the load working voltage data in the data storage unit as UFj, and extracting daily working time length data Tj of each load from the data storage unit;
step S42: substituting the load operating current data, the load operating voltage data and the load operating time data into a calculation formula:
obtaining a single-day electric quantity consumption calculation value, obtaining daily electric quantity data Qk of power supply in the past thirty days from a power supply module, wherein k represents a date number, k=1, 2 and 3 … …, an electric energy loss coefficient gamma is arranged in an electricity larceny prevention unit, electric energy utilization efficiency theta is obtained according to a calculation formula theta=Q1/Qk (1-gamma), no electricity larceny behavior is judged when the electric energy utilization efficiency is greater than or equal to a set threshold value, no processing is performed, the electricity consumption date of the situation is recorded when the electric energy utilization efficiency is smaller than the set threshold value, the existence of electricity larceny behavior is judged when the recorded electricity consumption date is continuous, and a line checking signal is generated.
5. The electric energy detection and metering system according to claim 1, wherein the specific steps of the load discriminating unit for performing the working condition discriminating analysis are as follows:
step S51: acquiring equipment numbers, marking corresponding load equipment, continuously acquiring real-time working current and real-time working voltage of the load equipment through a current measuring instrument and a voltage measuring instrument, calculating a product of the real-time current average value and the real-time voltage average value according to the real-time current average value and the real-time voltage average value to obtain a real-time power average value;
step S52: extracting load working current data and load working voltage data of corresponding load equipment from a data storage unit, performing product operation on the load working current data and the load working voltage data to obtain a load rated power, performing difference operation on an actual power average value and the load rated power to obtain a power difference value, starting a timer when the power difference value is greater than 0, accumulating time when the actual power average value is greater than the load rated power to generate accumulated time data, and performing ratio operation on the accumulated time data and load daily working time length data to obtain a time duty ratio;
step S53: when the time length ratio is more than or equal to thirty percent, judging that the power consumption of the load equipment is abnormal, generating a load power consumption abnormal signal, and when the time length ratio is less than thirty percent, judging that the power consumption of the load equipment is normal, and generating a load power consumption normal signal.
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