CN108226595B - Portable electronic intelligent electric energy meter anti-electricity-theft detector - Google Patents
Portable electronic intelligent electric energy meter anti-electricity-theft detector Download PDFInfo
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- CN108226595B CN108226595B CN201810003641.0A CN201810003641A CN108226595B CN 108226595 B CN108226595 B CN 108226595B CN 201810003641 A CN201810003641 A CN 201810003641A CN 108226595 B CN108226595 B CN 108226595B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/22—Tong testers acting as secondary windings of current transformers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/061—Details of electronic electricity meters
- G01R22/066—Arrangements for avoiding or indicating fraudulent use
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a portable electronic intelligent electric energy meter electricity larceny prevention detector which comprises a shell, wherein a control unit and a resistive load are arranged in the shell, and the portable electronic intelligent electric energy meter electricity larceny prevention detector also comprises a charge-discharge device and a user current collector. The intelligent electric energy meter detection method and the intelligent electric energy meter detection device can detect the intelligent electric energy meter under the condition of no power failure and can also detect the intelligent electric energy meter under the condition of power failure, and have the advantages of simple operation and convenient connection. The charging and discharging device has the advantages of simple structure, low power consumption and cyclic utilization. The invention can avoid the influence of the simultaneous power utilization of the user on the detection result under the condition of uninterrupted detection.
Description
Technical Field
The invention relates to a detection instrument for measuring an electric energy meter, in particular to a portable electronic intelligent electric energy meter anti-electricity-theft detector for detecting electricity-theft behaviors of short circuits inside an intelligent electric energy meter and short circuits inside and outside a junction box.
Background
The electricity stealing behavior is the behavior of using illegal means to not measure or less measure electricity consumption with the purposes of illegally occupying electric energy and not paying or less paying electricity fee. At present, in the electricity inspection process, some electricity stealing molecules forge legal or authorized metering verification mechanisms or sealed electricity consumption metering devices of power supply enterprises to seal, the internal and external structures of the meter are changed to steal electricity, particularly, the electricity stealing molecule forging seal method is vivid, and electricity inspection personnel sometimes need to spend a long time on judging the authenticity of the seal by naked eyes.
The electricity stealing is difficult to check in the power industry department, and the electricity stealing not only causes certain economic loss, but also is not beneficial to energy conservation and consumption reduction. When the electricity utilization behavior of common residential users is checked, the actual load condition of the home of the user is not known, or the current actual load is low, so that the error test of the electric energy meter of the user cannot be carried out on the spot. For the user who is uncertain whether the electricity stealing behavior exists, the error test and the wiring check of the large-scale field electric energy meter are not convenient, and the electricity stealing behavior in a small range existing in the ordinary resident user home is not easy to find.
Therefore, in order to solve the above-described problems, a search has been conducted for a conventional technique. The utility model provides an electric energy meter intelligent detector of 201120074585.3 is equipped with integrated circuit board, has socket and resistive load on integrated circuit board, through the contrast to the measuring result of detector and electric energy meter, judges whether the electric energy meter exists the possibility of stealing the electricity. However, if the electric energy meter measures the sum of the power consumption of the detector and the power consumption of the user under the condition that the user is using electricity, and the result measured by the detector is only the power consumption of the detector, the problem of inaccurate detection result occurs. Therefore, the design of the electricity stealing detector which has accurate detection result, can quickly detect, is energy-saving and portable is an urgent requirement.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the portable electronic intelligent electric energy meter anti-electricity-theft detector has the advantages of being fast in electrified detection, portable, energy-saving and accurate in measurement result.
The technical scheme of the technical problem to be solved by the invention is as follows:
portable electronic intelligence electric energy meter anti-electricity-theft detector, including the casing, inside control unit, the resistive load that has the electric energy measurement function that is equipped with of casing, its characterized in that: the device also comprises a charging and discharging device and a user current collector. The shell is provided with a detection jack for plugging a plug of a power test line, and the detection jack comprises a power supply lead-in jack, a communication jack, a current acquisition jack and a power supply lead-out jack. The control unit comprises a voltage sampling module, a first current sampling module, a second current sampling module, a current transformer, a communication module, a power supply module, a controller, a touch screen, and an internal load relay and an external load relay which are electrically connected with the coil winding and the controller. The utility model discloses a power supply sampling device, including power introduction jack and voltage sampling module, the power introduction jack is connected with voltage sampling module's input electrical connection, and voltage sampling module's output and controller electrical connection, the cover is equipped with current transformer on the live wire of power introduction jack and voltage sampling module's electrical connection line, current transformer's output and first current sampling module electrical connection, first current sampling module and controller electrical connection. The input end of the voltage sampling module is electrically connected with the input end of the power supply module through the switch, and the output end of the power supply module is electrically connected with the controller and the touch screen and used for supplying power to the controller and the touch screen. The input end of the power module and the resistive load are connected in series with a normally open contact of an internal load relay, and the input end of the power module and the socket are connected in series with a normally open contact of an external load relay. The communication jack is electrically connected with the communication module, and the communication module is electrically connected with the controller. The user current collector is a pincerlike current transformer with a lead, a plug matched with the current collection jack is arranged at the end of the lead of the user current collector, the current collection jack is electrically connected with the second current sampling module, and the second current sampling module is electrically connected with the controller. The charging and discharging device comprises a first storage battery, a second storage battery, an inverter, a charging module, a battery monitoring module, a first charging relay, a second charging relay, a first discharging relay, a second discharging relay and a dual-power switching module, wherein the first charging relay, the second charging relay, the first discharging relay and the second discharging relay are electrically connected with the controller. The output end of the double-power-supply switching module is electrically connected with the input end of the inverter, a normally open contact of a first discharging relay is connected in series between the first path input end of the double-power-supply switching module and the first storage battery, a normally open contact of a second discharging relay is connected in series between the second path input end of the double-power-supply switching module and the second storage battery, and the output end of the inverter is electrically connected with the power supply leading-out jack. The output of the charging module and the first storage battery are connected in series with a normally open contact of a first charging relay, the output of the charging module and the second storage battery are connected in series with a normally open contact of a second charging relay, and the input of the charging module and the input of the power module are electrically connected. The battery monitoring module is electrically connected with the positive and negative electrodes of the first and second storage batteries respectively, and the battery monitoring module is electrically connected with the controller.
Preferably, the shell is made of a metal material and used for preventing external interference signals from interfering electronic components inside the shell.
Preferably, the control unit is provided with an overcurrent relay, the overcurrent relay winding is electrically connected with the controller, one normally closed contact of the overcurrent relay is connected in series between the normally open contact of the internal load relay and the resistive load, and the other normally closed contact of the overcurrent relay is connected in series between the normally open contact of the external load relay and the socket.
Preferably, an inverter power output socket is arranged on the shell and is electrically connected with the output end of the inverter.
Preferably, a temperature sensor is arranged on the upper part of the resistive load, and the temperature sensor is electrically connected with the controller.
The method for detecting the intelligent electric energy meter by using the portable electronic intelligent electric energy meter anti-electricity-theft detector comprises the following steps:
the method 1 is a detection method when a user normally uses electricity, the detection method does not affect the electricity consumption of the user, and the influence of the electricity consumption of the user on detection is eliminated, and the method specifically comprises the following steps:
step 1, connecting an intelligent electric energy meter and a portable electronic intelligent electric energy meter anti-electricity-theft detector, comprising the following steps: step 1.1, removing lead seals of the intelligent electric energy meter, and opening a box cover of a junction box of the intelligent electric energy meter; step 1.2, inserting one end of an electric power test wire into a power supply lead-in jack, and connecting the other end of the electric power test wire to a power supply outlet terminal of the intelligent electric energy meter through a jointing clamp); step 1.3, opening a user current collector, sleeving the user current collector on a live wire of a cable leading in a user, inserting a lead of the user current collector into a current collecting jack, and collecting current on the user side by using the user current collector to avoid the influence of power consumption of the user on a detection result during detection; and step 1.4, inserting one end of another group of power test wires into the communication jack, and clamping the other end of the other group of power test wires on a communication terminal of the intelligent electric energy meter through a jointing clamp so as to realize communication between the controller and the intelligent electric energy meter.
Step 2, turning on a switch, starting a device, reading the electric degree of the intelligent electric energy meter before detection by a controller after the device is started, and then selecting a corresponding load through a touch screen according to the actual condition, specifically, the method 2.1, if the operation time is limited, selecting a resistive load for rapid detection, controlling a coil of an internal load relay to be electrified by the controller, closing a normally open contact of the internal load relay to switch on the resistive load, and consuming electric energy through the heating of the resistive load; 2.2, if the field has equipment needing power utilization, selecting an external load for detection, electrifying a coil of an external load relay by a controller, closing a normally open contact of the external load relay to switch on a socket, and consuming electric energy through the external load; and 2.3, if the operation time is sufficient and the energy is saved, starting the charge-discharge device for detection, judging the capacities of the two batteries by the controller through the battery monitoring module, and charging the battery with larger electric quantity by the controller through controlling the first charge relay and the second charge relay and then charging the battery with smaller electric quantity. In methods 2.1 and 2.2, the controller starts the load detection function, if the load is too large, the controller switches on the coil winding of the overcurrent relay to enable the coil winding to be electrified, and the normally closed contact of the overcurrent relay connected in series between the load and the power supply is disconnected to cut off the power supply of the load to avoid accidents.
And step 4, feeding back the result to the scheduling system.
And 5, closing the device and taking down the connecting wire.
The method 2 is a detection method for detecting power failure operation or electric energy meter disassembly, and comprises the following specific steps:
step 1, connecting the intelligent electric energy meter and the portable electronic intelligent electric energy meter anti-electricity-theft detector according to the step 1 in the method 1.
And 2, detaching the lead on the power supply incoming line terminal of the intelligent electric energy meter.
And 3, connecting the charging and discharging device with the intelligent electric energy meter, and connecting the power supply leading-out jack with a power supply incoming line terminal of the intelligent electric energy meter through a power test line.
Step 4, starting the device, reading the electricity degree before the detection of the intelligent electric energy meter by the controller, selecting a power failure detection mode through the touch screen and detecting, and specifically comprising the following steps: step 4.1, the controller judges the electric quantity of the first storage battery and the second storage battery through the battery monitoring module, if the electric quantity of the first storage battery is larger than the electric quantity of the second storage battery, the controller controls to close the first discharging relay, at the moment, a normally open contact of the first discharging relay connected between the first storage battery and the dual-power switching module in series is closed, and the first storage battery supplies power to the inverter through the dual-power switching module; and 4.2, the controller is connected with the charging module to charge the battery with lower electric quantity, if the electric quantity of the first storage battery is larger than that of the second storage battery, the controller controls the second charging relay to be closed, the normally open contact of the second charging relay connected between the second storage battery and the charging module in series is closed, and the charging module charges the second storage battery.
And 5, after the step 4.1 and the step 4.2 are completed, the electric energy is transferred from the storage battery with higher battery capacity to the storage battery with lower battery capacity, the intelligent electric energy meter has a certain degree change, the controller reads the degree of electricity of the intelligent electric energy meter again, and the electric energy cumulant of the intelligent electric energy meter is calculated through subtraction.
And 6, calculating the accumulated amount of the electric energy by the controller, and judging whether the electronic intelligent meter is modified or not according to the step 3.3 in the method 1.
And 7, closing the device after the detection is finished, taking down the connecting line, and restoring the device to the initial state.
Preferably, in step 4 of the method 2, in the process of charging the battery with low electric quantity by the battery with high electric quantity, when the electric quantity of the discharged battery is low, the controller controls the first and second charging relays and the first and second discharging relays to charge the battery with low electric quantity by the battery with high electric quantity, and the switching is repeated until effective data meeting the detection condition is obtained.
The invention has the beneficial effects that:
1. the invention has the characteristics of simple structure, simple operation and convenient carrying;
2. the invention is provided with the clamp type current transformer, the controller is provided with two paths of current sampling modules, and the clamp type current transformer has the beneficial effect of eliminating the influence of user electricity consumption during live detection;
3. the charging and discharging device is arranged, so that electric energy can be collected and transferred, and the energy-saving device has the beneficial effect of saving energy;
4. the charging and discharging device can provide electric energy for detection, and has the function of providing a power supply for detection work under the condition of power failure operation.
Drawings
FIG. 1 is a diagram of the whole circuit structure of an embodiment of the portable electronic intelligent electric energy meter anti-electricity-theft detector of the invention,
FIG. 2 is a schematic diagram showing an appearance of an embodiment of the portable electronic intelligent electric energy meter anti-electricity-theft detector of the present invention,
FIG. 3 is a circuit diagram of a charging and discharging device according to an embodiment of the portable electronic intelligent electric energy meter anti-electricity-theft detector of the present invention,
FIG. 4 is an electrical connection diagram between the portable electronic intelligent electric energy meter and the intelligent electric energy meter during the electrification detection in one embodiment of the anti-electricity-theft detector of the invention,
FIG. 5 is an electrical connection diagram between the portable electronic intelligent electric energy meter and the intelligent electric energy meter during power failure detection according to an embodiment of the portable electronic intelligent electric energy meter anti-electricity-theft detector of the invention.
In the figure:
1. a charging and discharging device 13, a double power supply switching module 15, a battery monitoring module 16, a charging module 17, an inverter 18, a second storage battery 19, a first storage battery 2, a user current collector,
3. an intelligent electric energy meter 31, a power supply inlet terminal 32, a power supply outlet terminal 33 and a communication terminal,
61. a first charging relay, 611, a normally open contact of the first charging relay, 62, a second charging relay, 621, a normally open contact of the second charging relay, 63, a first discharging relay, 631, a normally open contact of the first discharging relay, 64, a second discharging relay, 641, a normally open contact of the second discharging relay, 65, an overcurrent relay, 651, a normally closed contact of the overcurrent relay,
71. a power supply lead-in jack 72, a communication jack 73, a current acquisition jack 74 and a power supply lead-out jack,
81. a voltage sampling module 821, a first current sampling module 822, a second current sampling module 83, a current transformer 84, a communication module 851, an internal load relay 8511, a normally open contact of the internal load relay 852, an external load relay 8521, a normally open contact of the external load relay 86, a power module 87, a controller 89 and a touch screen,
9. a resistive load.
Detailed Description
In order to make the technical solution and the advantages of the present invention clearer, the following explains embodiments of the present invention in further detail.
As shown in fig. 2, the portable electronic intelligent electric energy meter anti-electricity-theft detector comprises a shell, wherein a socket, a touch screen 89, a switch button and a detection jack are arranged on the upper surface of the shell. Inside the housing a control unit and a resistive load 9 are arranged. For better protection of the device, the housing is designed as a housing with a lid. As shown in fig. 1, in order to realize the energy-saving effect, a charging and discharging device 1 is further arranged inside the casing; in order to avoid the influence of the electricity consumption of the user on the detection result during detection, the invention is also provided with a user current collector 2.
Preferably, the housing is made of a metal material to prevent electromagnetic interference. In the process of electricity utilization inspection, a mode of stealing electricity through interference signals is also found, so that in order to prevent interference of the interference signals, the shell is designed to be a metal shell and used for protecting electronic components inside the shell so as to obtain a more accurate detection result.
In order to facilitate the connection of an electric circuit during detection, the upper part of the shell is provided with a detection jack. According to the function difference, the detection jack is divided into: a power supply lead-in jack 71 for connecting a power supply outlet terminal 32 at the user side of the intelligent electric energy meter 3; the communication jack 72 is used for connecting the communication terminal 33 of the intelligent electric energy meter 3 to realize the data exchange between the portable electronic intelligent electric energy meter electricity larceny prevention detector and the intelligent electric energy meter 3; the current collection jack 73 is used for collecting the use condition of the electric energy of the user side; and a power outlet jack 74 for connecting the power inlet terminal 31 of the power side of the intelligent electric energy meter 3. In the power test, a power test wire is the most common device, and a wire with two ends of a banana plug is more common. Meanwhile, the alligator connector clip can be applied to the alligator connector clip in order to realize connection without a jack. The alligator connector clip is provided with the jack of the banana plug so as to facilitate the connection of the power test line.
In the detection process, the situation that the user is using electricity can occur, and in order to avoid the influence of the user electricity on the detection result, the invention is provided with the user current collector 2. In order to facilitate current collection, the user current collector 2 is designed as a pincer-shaped current transformer, and the end of the outgoing line of the pincer-shaped current transformer is provided with a plug matched with the current collection jack 73. Therefore, during detection, the user current collector 2 is opened and sleeved on the live wire of the cable leading to the user, and then the lead end of the user current collector 2 is inserted into the current collecting jack 73.
According to the prior art, the pincerlike current transformer comprises a fixed tong arm and a movable tong arm which are hinged together, and silicon steel sheets are arranged inside the two tong arms and used for conducting magnetism. When the movable clamp arm is turned to the closed state, a wire passing channel is formed between the movable clamp arm and the fixed clamp arm. And the live cable passes through the wire passing channel to detect the current.
As shown in fig. 1, the control unit includes a voltage sampling module 81, a first current sampling module 821, a second current sampling module 822, a communication module 84, a current transformer 83, a power supply module 86, and a controller 87. To control the switching of the load, a coil winding of a relay is connected to the control output of the controller 87. Among them, an internal load relay 851 controls the internal resistive load 9, and an external load relay 852 controls an external load connected through a socket. In the present invention, the power consumption of the user side is also collected, so two current sampling modules, i.e., the first and second current sampling modules 821 and 822, are required. The power module 86 converts 220 v ac power to low voltage dc power for the electronic components. The core component of the control unit is a controller 87, and in the prior art, a single chip microcomputer is one of the more common simple controllers.
In order to measure the electric energy flowing through the detector, the controller 87 needs to collect voltage and current signals, so that the power supply introducing jack 71 externally connected with the intelligent electric energy meter 3 is electrically connected with the input end of the voltage sampling module 81 inside the device. The voltage sampling module 81 is composed of a voltage transmitter, an a/D conversion chip and related peripheral circuits, and functions to convert a high-voltage analog signal into a low-voltage analog signal and then into a digital signal, and transmit the digital signal to the controller 87 for processing. The output of the voltage sampling module 81 is therefore electrically connected to the controller 87. In order to make the measurement result more accurate and eliminate the influence of the power consumption of the device itself, a current transformer 83 is provided in a sleeve on the live line of the electric connection line of the power supply introducing jack 71 and the voltage sampling module 81. The current signal is converted into a digital signal recognized by the controller through a current sampling module. Thus, the output of the current transformer 83 is electrically connected to the input of the first current sampling module 821, and the output of the first current sampling module 821 is electrically connected to the controller 87.
In order to supply power to the whole device, two wires are connected in parallel at the input end of the voltage sampling module 81 and are connected with a zero wire terminal and a fire wire terminal at the power supply input end of the power supply module 86. The output of the power module 86 is electrically connected to the controller 87 and the touch screen 89 for providing operating power to the controller 87 and the touch screen 89.
Since the device is mostly composed of electronic components, the power consumption of the device itself is not large, and in order to increase the power and improve the detection speed, a resistive load 9 and a socket providing an interface for an external load are provided inside the housing. Power is supplied to the internal and external loads by connecting the leads to the resistive load 9 and the socket in parallel at the input of the power module 86. In order to control the load by the controller 87, a normally open contact 8511 of an internal load relay 851 is connected in series between the power module 86 and the resistive load 9, and a normally open contact 8521 of an external load relay 852 is connected in series between the power module 86 and the outlet. Thus, the controller 87 implements an electrical circuit that controls 220 volts ac by controlling a small relay.
Preferably, in order to improve the safety of the device, the controller 87 is provided with a load monitoring program for determining whether the load is too large through data processing of the first current sampling module 821 and timely disconnecting the load in case of too large load. The coil winding of the overcurrent relay 65 is therefore also connected to the control output of the controller 87. The normally closed contacts 651 of the overcurrent relay 65 are connected in series between the normally open contacts 8511 of the internal load relay 851 and the resistive load 9 and between the normally open contacts 8521 of the external load relay 852 and the socket.
Preferably, a temperature sensor is provided on the resistance of the resistive load 9, and the temperature sensor is electrically connected to the controller 87. The controller 87 detects the temperature of the resistance sensed by the temperature sensor and disconnects the resistive load 9 if the temperature is too high.
In order to realize the communication between the portable electronic intelligent electric energy meter electricity larceny prevention detector and the intelligent electric energy meter 3, the communication jack 72 is electrically connected with the communication terminal 33 of the intelligent electric energy meter 3 through a test wire, the inside of the communication jack 72 is electrically connected with the communication module 84, and the communication module 84 is electrically connected with the controller 87 to realize the acquisition and processing of the data of the intelligent electric energy meter 3 by the controller 87. In the prior art, 485 communication, infrared communication and GPRS communication are mostly adopted in the intelligent electric energy meter, so that the communication module 84 selects a 485 communication interface module which is commonly used, and a protocol program related to the communication protocol of the DLT 645-2007 multifunctional electric energy meter is arranged inside the controller 87.
In order to save energy and detect the intelligent electric energy meter 3 in case of power failure, the invention is provided with a charging and discharging device 1, as shown in fig. 3, the device comprises a first storage battery 19, a second storage battery 18, an inverter 17, a charging module 16, a battery detection module 15, a dual power supply switching module 13, a first charging relay 61, a second charging relay 62, a first discharging relay 63, a second discharging relay 64.
The charge and discharge device 1 realizes charge and discharge control of the battery. The coil windings of the first and second charging relays 61 and 62 and the first and second discharging relays 63 and 64 are electrically connected to the control output terminal of the controller 87. In the current art, the I/O interface of the microcontroller can implement a power supply that outputs less power, so the main loop of high current can be controlled by matching an appropriate relay with the controller 87. When the control output port of the controller 87 outputs voltage, the relay winding is electrified, the normally open contact or the normally closed contact of the relay acts, and the contact connected in series in the main circuit realizes the control of the main circuit. Therefore, the voltage level of the relay coil winding is selected and the controller 87 controls the output voltage of the output terminal to be consistent, and the node capacity of the relay contact should meet the requirement of the maximum current of the main loop.
The function of the charging and discharging device 1 is to charge the battery with lower electricity consumption by the battery with higher electricity consumption, and to measure the electricity of the intelligent electric energy meter 3 by the transfer of the electricity, so as to detect whether the intelligent electric energy meter 3 steals electricity. The charging mode is that the battery with higher electric quantity is changed into alternating current through the inverter 17, and the alternating current passes through the ammeter and then is connected with the charging module 16, and the charging module 16 charges the battery with lower electric quantity. The charging and discharging device 1 also has the functions of obtaining electric energy through independent charging and providing electric energy for the outside through independent discharging. In the process of conversion, the battery with high electric quantity is changed into the battery with low electric quantity, the battery with low electric quantity is changed into the battery with high electric quantity, and when the battery is used next time, the new battery with high electric quantity charges the new battery with low electric quantity. As shown in fig. 3, the specific circuit structure is:
the dc input of the inverter 17 is electrically connected to the output of the dual power switching module 13. The output of the inverter 17 is electrically connected to the power outlet jack 74. In the prior art, the dual power switching module includes two power inlet lines, one of which is a power outlet line, and when one of the two power inlet lines loses power, the dual power switching module is automatically switched to an automatic transfer switch of the other power supply. Therefore, the power loss is simulated by controlling the two power supply inlet wires of the dual power supply switching module 13 and the on-off of the first storage battery 19 and the second storage battery 18, and the first storage battery 19 and the second storage battery 18 can independently supply power to the inverter 17. The use of dual power switching module 13 also functions to prevent errors in the control of the relay by controller 87, resulting in the parallel connection of two batteries supplying power simultaneously. Because two batteries have a difference in charge, the danger of a short circuit is likely to occur. Therefore, the normally open contact 631 of the first discharge relay 63 is respectively connected in series between the first input end of the dual power switching module 13 and the positive electrode of the first storage battery 19, and the normally open contact 641 of the second discharge relay 64 is respectively connected in series between the second input end of the dual power switching module 13 and the positive electrode of the second storage battery 18.
Preferably, in order to supply power to the external device during a power failure or on the way to the site, an inverter output socket is provided on the housing, and the inverter output socket is electrically connected to the output terminal of the inverter 17. Therefore, power supplies can be provided for mobile phones, electronic instruments and illumination of workers.
The above control of the discharging process realizes the function of converting the dc power of the battery into the ac power and outputting the ac power, and the circuit connection for charging the battery is described below. The charging module 16 is used to charge the battery and functions to convert ac power into dc power and charge the battery. The charging module 16 is a switching power supply module. A switching power supply module is an adapter that can convert a dc or ac power source into a dc power. In order to realize the independent charging of different batteries, a normally open contact 611 of a first charging relay 61 is connected in series between the output end of the charging module 16 and the first storage battery 19; a normally open contact 621 of the second charging relay 62 is connected in series between the same output end of the charging module 16 and the second battery 18. The input of the charging module 16 is electrically connected to the input of the power module 86.
The charge/discharge device 1 is configured to control a battery with a high battery capacity to charge a battery with a low battery capacity, and therefore the battery monitoring module 15 is required to monitor the capacities of the first and second storage batteries 19 and 18. Two signal acquisition ends of the battery monitoring module 15 are electrically connected with the positive and negative electrodes of the first and second storage batteries 19 and 18, respectively. The data output of the battery monitoring module 15 is electrically connected to the controller 87.
The present invention can detect the intelligent electric energy meter 3 during power failure operation, and can also detect the intelligent electric energy meter 3 without power failure, and a specific use method is explained below.
The following advantages are provided for detection without power failure: the power utilization of a user is not influenced, and the service quality of power supply is improved for a non-electricity-stealing user; and secondly, the detection is concealed, so that the electricity stealing user does not have the opportunity of removing the electricity stealing device, and the success rate of the detection is increased. The method for detecting the electricity larceny prevention of the portable electronic intelligent electric energy meter under the condition of no power outage comprises the following steps:
step 1, electrically connecting the portable electronic intelligent electric energy meter anti-electricity-theft detector with an intelligent electric energy meter 3, as shown in fig. 4, specifically comprising the following steps:
step 1.1, as is well known, a lead sealing device is arranged on the junction box of the intelligent electric energy meter 3, the lead sealing of the intelligent electric energy meter 3 needs to be removed when the intelligent electric energy meter 3 needs to be detected, and then a box cover of the junction box of the intelligent electric energy meter 3 is opened so as to be convenient for connecting a wire.
Step 1.2, inserting one end of the electric power test wire into the power supply lead-in jack 71, inserting the other end of the electric power test wire into the jointing clamp in a splicing connection, and clamping the jointing clamp on a live wire terminal and a zero wire terminal of the outgoing line of the intelligent electric energy meter 3. In prior art, the binding clip is mostly the crocodile mouth fastener to be equipped with the jack of electric power test wire on the binding clip.
Step 1.3, the user current collector 2 is opened, the user current collector 2 is sleeved on the live wire of the cable leading in the user, and the lead end of the user current collector 2 is inserted into the current collecting jack 73. The purpose of this operation is to prevent the user from using electricity at the same time during the test, which affects the test result. In the detection process, the accumulated electric energy measured by the portable electronic intelligent electric energy meter electricity larceny prevention detector is the electric power consumption of the resistive load 9 or the external load, and the intelligent electric energy meter 3 is the sum of the electric power consumption of the resistive load 9 or the external load and the electric power consumption of a user, so that the detection result is prevented from being mistaken by counting the electric power consumption of the user.
Step 1.4, one end of the electric power test wire is inserted into the communication jack 72, the other end of the electric power test wire is connected with the jointing clamp in an inserting mode, and the jointing clamp is clamped on a communication terminal of the electric energy meter. The purpose of the operation is to realize the communication between the portable electronic intelligent electric energy meter electricity larceny prevention detector and the intelligent electric energy meter 3, so as to obtain the metering data of the intelligent electric energy meter 3.
And 2, turning on a power switch, starting the device, and selecting a load according to the actual condition after the device is started. The test is performed after the electrical connection lines have been connected. Firstly, the electric degree of the intelligent electric energy meter 3 before detection is read through the communication connection line and stored in the register of the controller 87. Only under the condition of having the load operation, intelligent ammeter 3 just can measure, therefore need detect intelligent ammeter 3 and still need have the load. The portable electronic intelligent electric energy meter anti-electricity-theft detector is provided with an internal load and an external load, and different loads can be selected according to different conditions. The specific selection method is as follows:
method 2.1, if the operation time is limited, such as the given time of the electric work ticket is short or the user is prevented from stealing electricity, the resistive load 9 of the invention is selected for quick detection. The rapid detection is selected through the touch screen 89, and the resistive load 9 is selected, after the controller 87 receives an instruction of the touch screen 89, the controller controls the internal load relay 851 to be closed, and the normally open contact 8511 of the internal load relay 851 connected in series between the resistive load 9 and the input end of the power module 86 is closed, so that the resistive load 9 is electrified. This allows the electric power to be consumed by the heat generation of the resistive load 9.
Method 2.2, if there is no time limit, the field can be selected to have equipment needing electricity, such as a hot water kettle and an electric fan, and at the moment, an external load is selected to consume the electric energy. Similarly, the external load is selected through the touch screen 89, the controller 87 controls to close the external load relay 852, and the normally open contact 8521 of the external load relay 852 connected in series between the socket and the input terminal of the power module 86 is closed to induce the power to the socket, and at this time, the plug of the external load is inserted into the socket to realize the consumption of the electric energy.
Method 2.3, if the operation time is sufficient and in order to save energy, the charging and discharging device 1 can be selected to start to consume the electric energy. Similarly, the charging and discharging device 1 is selectively started by the touch panel 89. Firstly, the controller 87 judges the capacities of the two batteries through the battery monitoring module 15; the controller 87 then controls the first and second charging relays 61, 62 to charge the battery with the larger battery capacity. The reason why the battery with large battery capacity is charged first is to ensure that a certain capacity difference exists between the battery with large battery capacity and the battery with small battery capacity when power failure detection is carried out so as to ensure the transfer and consumption of the power. After the battery with the larger electric quantity is fully charged, if the detection effect cannot be achieved, the battery with the smaller electric quantity is continuously charged.
In order to protect the equipment from burning out, in method 2.1 and method 2.2 the controller 87 activates the load detection function and disconnects the load by controlling the overcurrent relay 65 if the load is too large. Therefore, when the controller 87 detects that the load current is too large, i.e. the overload operation, the controller 87 controls the coil winding of the overcurrent relay 65 to be electrified, and at the moment, the normally closed contact 651 of the overcurrent relay 65 connected in series between the load and the power supply is opened, so that the load and the power supply are disconnected.
step 3.1, the controller 87 calculates the electric energy accumulation after a period of time, and the electric energy accumulation calculated by the controller 87 comprises the sum of the electric energy consumption of the portable electronic intelligent electric energy meter anti-electricity-theft detector and the load thereof and the electric energy consumption of the user in the period of time collected by the user current collector 2;
step 3.2, the controller 87 communicates with the intelligent electric energy meter 3 again through the communication line connected with the communication terminal 33 of the intelligent electric energy meter 3, reads the electric degree of the intelligent electric energy meter 3 at the end of detection, and subtracts the electric degree stored in the register before detection, namely the electric energy accumulation amount of the intelligent electric energy meter 3 in the detection time from the read electric degree;
and 3.3, comparing the electric energy accumulated amount calculated by the controller 87 with the electric energy accumulated amount of the intelligent electric energy meter 3, if the error between the electric energy accumulated amount and the electric energy accumulated amount is in a specified range, indicating that the electric energy meter is normal, and if the error exceeds the specified range, indicating that the electric energy meter is abnormal, so that the possibility of electricity stealing exists.
And step 4, feeding the result back to the dispatching system, and applying the electric energy management system of the dispatching system to compensate the detected electric energy for the user. The purpose of this operation is to not count the electric energy consumed by the detection meter into the user's used amount of electricity. Because the intelligent electric energy meter 3 will increase a certain number of degrees in the detection process, in order to reduce the loss of users and provide power supply service, the electric energy for detection is removed from the system.
And 5, closing the device and taking down the connecting wire.
The above is a specific method of the uninterruptible power supply operation, and a specific method of the uninterruptible power supply operation or the detection of the detached intelligent electric energy meter 3 will be described below. Fig. 5 is an electrical connection diagram of the intelligent electric energy meter 3 and the present invention when detecting a power failure.
The method 2 is a detection method for detecting power failure operation or detachment of the intelligent electric energy meter 3, and comprises the following five steps:
step 1, connecting an intelligent electric energy meter 3 and a portable electronic intelligent electric energy meter anti-electricity-theft detector according to the step 1 in the method 1.
And 2, detaching the lead on the power supply incoming line terminal 31 of the intelligent electric energy meter 3. This operation is intended to prevent the danger of electric shock to equipment and personnel due to sudden calls during the detection process.
And step 3, connecting the charging and discharging device 1 and the intelligent electric energy meter 3, and connecting the power supply leading-out jack 74 with the power supply incoming line terminal 31 of the intelligent electric energy meter 3 through a power test line. The charging and discharging device 1 is used for providing power for the intelligent electric energy meter 3.
Step 4, starting the device, the controller 87 reads the electricity degree before the intelligent electric energy meter 3 detects, and selects the power failure detection mode and detects through the touch screen 89, and the specific steps are as follows:
step 4.1, the controller 87 judges the electric quantity of the first storage battery 19 and the second storage battery 18 through the battery monitoring module 15, if the electric quantity of the first storage battery 19 is larger than the electric quantity of the second storage battery 18, the controller 87 controls to close the first discharging relay 63, at this time, a normally open contact 631 of the first discharging relay 63 connected in series between the first storage battery 19 and the dual power supply switching module 13 is closed, and the first storage battery 19 supplies power to the inverter 17 through the dual power supply switching module 13;
step 4.2, the controller 87 switches on the charging module 16 to charge the battery with lower battery capacity, if the battery capacity of the first storage battery 19 is greater than that of the second storage battery 18, the controller 87 controls to close the second charging relay 62, at this time, the normally open contact 621 of the second charging relay 62 connected in series between the second storage battery 18 and the charging module 16 is closed, and the charging module 16 charges the second storage battery 18;
preferably, in step 4, in the process of charging the battery with low electric quantity by the battery with high electric quantity, when the electric quantity of the discharged battery is low, the battery with low electric quantity cannot supply power to the inverter 17 due to too low voltage, so that the degree of the intelligent electric energy meter 3 cannot be changed continuously, and at this time, the two batteries need to be controlled again. That is, steps 4.1 and 4.2 are repeated, and the controller 87 controls the first and second charging relays 61 and 62 and the first and second discharging relays 63 and 64 to charge the battery with the higher electric quantity to the battery with the lower electric quantity, and after repeated switching, the effective data meeting the detection condition is obtained.
Step 5, after the step 4.1 and the step 4.2 are completed, the electric energy is transferred from the storage battery with higher battery capacity to the storage battery with lower battery capacity through the intelligent electric energy meter 3, the intelligent electric energy meter 3 has a certain degree change, the controller 87 reads the degree of the electric energy of the intelligent electric energy meter 3 again, and calculates the electric energy accumulation amount of the intelligent electric energy meter 3 by subtraction,
step 6, the controller 87 calculates the portable electronic intelligent electric energy meter electricity larceny prevention detector and the accumulated amount of electric energy transferred between batteries through the internal current transformer 83, the voltage sampling module 81 and the first current sampling module 821, at this time, whether the electronic intelligent meter is modified is judged according to step 3.3 in the method 1,
and 7, closing the device after the detection is finished, taking down the connecting line, and restoring the device to the initial state.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the light of the above description without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all equivalent changes and modifications in the shape, structure, characteristics and spirit described in the scope of the claims of the present invention are included in the scope of the claims of the present invention.
Claims (7)
1. Portable electronic intelligent ammeter anti-electricity-theft detector, including the casing, inside control unit, resistive load (9) that have the electric energy measurement function that are equipped with of casing, its characterized in that:
also comprises a charging and discharging device (1) and a user current collector (2),
the shell is provided with a detection jack for plugging a plug of a power test line, and the detection jack comprises a power supply lead-in jack (71), a communication jack (72), a current acquisition jack (73) and a power supply lead-out jack (74);
the control unit comprises a voltage sampling module (81), first and second current sampling modules (821, 822), a current transformer (83), a communication module (84), a power supply module (86), a controller (87), a touch screen (89), and an internal load relay (851) and an external load relay (852) which are electrically connected with the coil winding and the controller (87);
the power supply lead-in jack (71) is electrically connected with the input end of the voltage sampling module (81), the output end of the voltage sampling module (81) is electrically connected with the controller (87), a current transformer (83) is sleeved on a live wire of an electric connecting wire of the power supply lead-in jack (71) and the voltage sampling module (81), the output end of the current transformer (83) is electrically connected with the first current sampling module (821), and the first current sampling module (821) is electrically connected with the controller (87);
the input end of the voltage sampling module (81) is electrically connected with the input end of the power supply module (86) through a switch, and the output end of the power supply module (86) is electrically connected with the controller (87) and the touch screen (89) and used for supplying power to the controller (87) and the touch screen (89);
a normally open contact (8511) of an internal load relay (851) is connected in series between the input end of the power supply module (86) and the resistive load (9), and a normally open contact (8521) of an external load relay (852) is connected in series between the input end of the power supply module (86) and the socket;
the communication jack (72) is electrically connected with the communication module (84), and the communication module (84) is electrically connected with the controller (87);
the user current collector (2) is a pincerlike current transformer with a lead, a plug matched with the current collection jack (73) is arranged at the end part of the lead of the user current collector (2), the current collection jack (73) is electrically connected with the second current sampling module (822), and the second current sampling module (822) is electrically connected with the controller (87);
the charging and discharging device (1) comprises a first storage battery (19), a second storage battery (18), an inverter (17), a charging module (16), a battery monitoring module (15), first and second charging relays (61, 62), first and second discharging relays (63, 64) and a dual power supply switching module (13), wherein coil windings of the first and second charging relays (61, 62), the first and second discharging relays (63, 64) are electrically connected with a controller (87);
the output end of the dual-power switching module (13) is electrically connected with the input end of the inverter (17), a normally open contact (631) of a first discharging relay (63) is connected in series between the first path of input end of the dual-power switching module (13) and the first storage battery (19), a normally open contact (641) of a second discharging relay (64) is connected in series between the second path of input end of the dual-power switching module (13) and the second storage battery (18), and the output end of the inverter (17) is electrically connected with the power supply leading-out jack (74);
a normally open contact (611) of a first charging relay (61) is connected in series between the output end of the charging module (16) and the first storage battery (19), a normally open contact (621) of a second charging relay (62) is connected in series between the output end of the charging module (16) and the second storage battery (18), and the input end of the charging module (16) is electrically connected with the input end of the power supply module (86);
the battery monitoring module (15) is respectively electrically connected with the positive electrode and the negative electrode of the first storage battery (19) and the second storage battery (18), and the battery monitoring module (15) is electrically connected with the controller (87).
2. The portable electronic intelligent electric energy meter anti-electricity-theft detector as claimed in claim 1, characterized in that:
the shell is made of metal materials and used for preventing external interference signals from interfering electronic components in the shell.
3. The portable electronic intelligent electric energy meter anti-electricity-theft detector as claimed in claim 1, characterized in that:
the control unit is provided with an overcurrent relay (65), a winding of the overcurrent relay (65) is electrically connected with the controller (87), one normally closed contact of the overcurrent relay (65) is connected in series between a normally open contact (8511) of the internal load relay (851) and the resistive load (9), and the other normally closed contact of the overcurrent relay (65) is connected in series between a normally open contact (8521) of the external load relay (851) and the socket.
4. The portable electronic intelligent electric energy meter anti-electricity-theft detector as claimed in claim 1, characterized in that:
an inverter power supply output socket is arranged on the shell and is electrically connected with the output end of the inverter (17).
5. The portable electronic intelligent electric energy meter anti-electricity-theft detector as claimed in claim 1, characterized in that:
and a temperature sensor is arranged on the upper part of the resistive load and is electrically connected with a controller (87).
6. The method for detecting the electricity larceny prevention detector of the portable electronic intelligent electric energy meter according to claim 3, characterized in that:
the method 1 is a detection method when a user normally uses electricity, the detection method does not affect the electricity consumption of the user, and the influence of the electricity consumption of the user on detection is eliminated, and the method specifically comprises the following steps:
step 1, connecting an intelligent electric energy meter (3) with a portable electronic intelligent electric energy meter anti-electricity-theft detector, comprising the following steps:
step 1.1, removing the lead seal of the intelligent electric energy meter (3), opening the box cover of the junction box of the intelligent electric energy meter (3),
step 1.2, one end of an electric power test wire is inserted into a power lead-in jack (71), the other end of the electric power test wire is connected to a power outlet terminal (32) of the intelligent electric energy meter (3) through a jointing clamp,
step 1.3, opening the user current collector (2), sleeving the user current collector (2) on a live wire of a cable leading in a user, inserting a lead of the user current collector (2) into a current collecting jack (73), collecting the current at the user side by using the user current collector (2) to avoid the influence of the user electricity on a detection result during detection,
step 1.4, inserting one end of another group of power test wires into a communication jack (72), and clamping the other end of the other group of power test wires on a communication terminal (33) of the intelligent electric energy meter (3) through a jointing clamp so as to realize communication between a controller (87) and the intelligent electric energy meter (3);
step 2, turning on a switch, starting a device, reading the electricity degree of the intelligent electric energy meter (3) before detection by a controller (87) behind the starting device, and then selecting a corresponding load through a touch screen (89) according to actual conditions, wherein the method specifically comprises the following steps:
method 2.1, if the operation time is limited, the resistive load (9) is selected for rapid detection, the controller (87) controls the coil of the internal load relay (851) to be electrified, the normally open contact (8511) of the internal load relay (851) is closed to switch on the resistive load (9), the electric energy is consumed through the heating of the resistive load (9),
method 2.2, if the field has the equipment needing power utilization, the external load is selected for detection, the coil of the external load relay (852) is electrified by the controller (87), the normally open contact (8521) of the external load relay (852) is closed to connect the socket, the electric energy is consumed through the external load,
method 2.3, if the operation time is sufficient and the energy is saved, the charging and discharging device (1) is started to carry out detection, the controller (87) judges the capacities of the two batteries through the battery monitoring module (15), the controller (87) firstly charges the battery with larger battery capacity and then charges the battery with smaller battery capacity through controlling the first charging relay (61) and the second charging relay (62),
in the method 2.1 and the method 2.2, the controller (87) starts a load detection function, if the load is overlarge, the coil winding of the overcurrent relay (65) is switched on by the controller (87) to be electrified, and a normally closed contact (651) of the overcurrent relay (65) connected between the load and the power supply in series is switched off to cut off the power supply of the load to avoid accidents;
step 3, judging whether the electric meter is modified or not,
step 3.1, calculating the electric energy accumulation amount after the controller (87) detects for a period of time, wherein the electric energy accumulation amount calculated by the controller (87) is the sum of the electric power consumption of the portable electronic intelligent electric energy meter anti-electricity-theft detector and the load thereof and the electric power consumption of the user in the period of time collected by the user current collector (2),
step 3.2, the controller (87) communicates with the intelligent electric energy meter (3) again, the electric degree of the intelligent electric energy meter (3) is read, the accumulated electric energy of the intelligent electric energy meter (3) is obtained by subtracting the electric degree read when the electric energy meter is started from the electric degree read at the next time,
step 3.3, comparing the electric energy accumulated amount calculated by the controller (87) with the electric energy accumulated amount of the intelligent electric energy meter (3), if the error between the electric energy accumulated amount and the electric energy accumulated amount is in a specified range, indicating that the electric energy meter is normal, and if the error exceeds the specified range, indicating that the electric energy meter is abnormal, wherein the possibility of electricity stealing exists;
step 4, feeding back the result to the scheduling system;
step 5, closing the device, and taking down the connecting wire;
the method 2 is a detection method for detecting power failure operation or electric energy meter disassembly, and comprises the following specific steps:
step 1, connecting an intelligent electric energy meter (3) and a portable electronic intelligent electric energy meter anti-electricity-theft detector according to the step 1 in the method 1;
step 2, detaching a lead on a power supply incoming line terminal (31) of the intelligent electric energy meter (3);
step 3, connecting the charging and discharging device (1) with the intelligent electric energy meter (3), and connecting the power supply leading-out jack (74) with a power supply incoming line terminal (31) of the intelligent electric energy meter (3) through a power test line;
step 4, starting the device, reading the electricity degree before the detection of the intelligent electric energy meter (3) by the controller (87), selecting a power failure detection mode through the touch screen (89) and detecting, wherein the method comprises the following specific steps:
step 4.1, the controller (87) judges the electric quantity of the first storage battery (19) and the second storage battery (18) through the battery monitoring module (15), if the electric quantity of the first storage battery (19) is larger than the electric quantity of the second storage battery (18), the controller (87) controls to close the first discharging relay (63), at the moment, a normally open contact (631) of the first discharging relay (63) connected between the first storage battery (19) and the dual-power switching module (13) in series is closed, the first storage battery (19) supplies power to the inverter (17) through the dual-power switching module (13),
step 4.2, the controller (87) is connected with the charging module (16) to charge the battery with lower battery capacity, if the battery capacity of the first storage battery (19) is larger than that of the second storage battery (18), the controller (87) controls the second charging relay (62) to be closed, the normally open contact (621) of the second charging relay (62) connected between the second storage battery (18) and the charging module (16) in series is closed, and the charging module (16) charges the second storage battery (18);
step 5, after the step 4.1 and the step 4.2 are completed, electric energy is transferred from the storage battery with higher battery capacity to the storage battery with lower battery capacity, the intelligent electric energy meter (3) has a certain degree change, the controller (87) reads the degree of the electric energy of the intelligent electric energy meter (3) again, and the electric energy accumulation amount of the intelligent electric energy meter (3) is calculated through subtraction;
step 6, the controller (87) calculates the accumulated amount of the electric energy, and at the moment, whether the electronic intelligent meter is modified or not is judged according to the step 3.3 in the method 1;
and 7, closing the device after the detection is finished, taking down the connecting line, and restoring the device to the initial state.
7. The use method of the portable electronic intelligent electric energy meter anti-electricity-theft detector as claimed in claim 6, wherein the step 4 of the method 2 is characterized in that:
when the electric quantity of the discharged battery is low in the process of charging the battery with high electric quantity to the battery with low electric quantity, the controller (87) controls the first and second charging relays (61, 62) and the first and second discharging relays (63, 64) to charge the battery with high electric quantity to the battery with low electric quantity, and effective data meeting the detection condition is obtained after repeated switching.
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| CN110763886B (en) * | 2019-12-05 | 2021-11-12 | 国网江苏省电力有限公司南通供电分公司 | Single-phase user electricity stealing judgment and positioning method |
| CN110736865B (en) * | 2019-12-05 | 2021-11-12 | 国网江苏省电力有限公司南通供电分公司 | Three-phase user electricity stealing judgment and positioning method |
| CN111856103A (en) * | 2020-07-02 | 2020-10-30 | 国网山东省电力公司淄博供电公司 | Electric power electricity larceny prevention detection instrument and method |
| CN114308731B (en) * | 2021-11-11 | 2024-01-05 | 浙江晨泰科技股份有限公司 | Smart electric meter encapsulation detection device |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181003Y (en) * | 1994-01-21 | 1994-10-26 | 黎其臻 | Device for preventing frandulent use of electricity |
| EP0692413A1 (en) * | 1994-06-22 | 1996-01-17 | atu Development a/s | Connection of a control circuit for an anti-theft battery |
| CN2246805Y (en) * | 1995-09-05 | 1997-02-05 | 李振和 | Single-phase electric meter avoiding or indicating fraudulent use of electricity |
| TW506533U (en) * | 2001-08-21 | 2002-10-11 | Prodigit Electronics Co Ltd | Digital electrical energy meter |
| CN201075117Y (en) * | 2007-03-05 | 2008-06-18 | 哈尔滨智通科技有限公司 | Single phase electric energy meter capable of avoiding fraudulent use of electricity |
| TWM408693U (en) * | 2011-01-05 | 2011-08-01 | Li Da Electrical Consultant Co Ltd | Device for preventing electricity theft of transferring electric meter |
| CN201993464U (en) * | 2011-03-21 | 2011-09-28 | 安徽省电力公司阜阳供电公司 | Intelligent detector for electric energy meter |
| CN203101468U (en) * | 2012-12-24 | 2013-07-31 | 河北省电力公司电力科学研究院 | Field electricity-stealing detector |
| TW201333480A (en) * | 2012-02-09 | 2013-08-16 | Mitsubishi Electric Corp | Electricity meter, theft detection method of electricity meter and electricity supply system |
| US9121883B2 (en) * | 2011-10-14 | 2015-09-01 | Landis+Gyr, Inc. | Magnetic tampering detection and correction in a utility meter |
| CN105259391A (en) * | 2015-10-29 | 2016-01-20 | 国网山东潍坊市寒亭区供电公司 | Electric larceny prevention metering device and electric larceny prevention method thereof |
| CN205679661U (en) * | 2016-06-06 | 2016-11-09 | 国网山东省电力公司青岛供电公司 | A kind of fraudulent use detection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM506533U (en) * | 2014-12-25 | 2015-08-11 | Dongguan Fu Rong Shoes Material Co Ltd | Baby mattress structure |
-
2018
- 2018-01-03 CN CN201810003641.0A patent/CN108226595B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2181003Y (en) * | 1994-01-21 | 1994-10-26 | 黎其臻 | Device for preventing frandulent use of electricity |
| EP0692413A1 (en) * | 1994-06-22 | 1996-01-17 | atu Development a/s | Connection of a control circuit for an anti-theft battery |
| CN2246805Y (en) * | 1995-09-05 | 1997-02-05 | 李振和 | Single-phase electric meter avoiding or indicating fraudulent use of electricity |
| TW506533U (en) * | 2001-08-21 | 2002-10-11 | Prodigit Electronics Co Ltd | Digital electrical energy meter |
| CN201075117Y (en) * | 2007-03-05 | 2008-06-18 | 哈尔滨智通科技有限公司 | Single phase electric energy meter capable of avoiding fraudulent use of electricity |
| TWM408693U (en) * | 2011-01-05 | 2011-08-01 | Li Da Electrical Consultant Co Ltd | Device for preventing electricity theft of transferring electric meter |
| CN201993464U (en) * | 2011-03-21 | 2011-09-28 | 安徽省电力公司阜阳供电公司 | Intelligent detector for electric energy meter |
| US9121883B2 (en) * | 2011-10-14 | 2015-09-01 | Landis+Gyr, Inc. | Magnetic tampering detection and correction in a utility meter |
| TW201333480A (en) * | 2012-02-09 | 2013-08-16 | Mitsubishi Electric Corp | Electricity meter, theft detection method of electricity meter and electricity supply system |
| CN203101468U (en) * | 2012-12-24 | 2013-07-31 | 河北省电力公司电力科学研究院 | Field electricity-stealing detector |
| CN105259391A (en) * | 2015-10-29 | 2016-01-20 | 国网山东潍坊市寒亭区供电公司 | Electric larceny prevention metering device and electric larceny prevention method thereof |
| CN205679661U (en) * | 2016-06-06 | 2016-11-09 | 国网山东省电力公司青岛供电公司 | A kind of fraudulent use detection device |
Non-Patent Citations (1)
| Title |
|---|
| 采用双锰铜取样的防窃电单相智能电能表设计;朱华 等;《计量与测试技术》;20161231;第43卷(第7期);第1-4页 * |
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