An efficient electric energy meter electric quantity accumulation detection device and detection method

Abstract

The application discloses a kind of high-efficient electric energy meter electric quantity cumulative detection device and detection method, including the first storage unit for electric quantity accumulation and the second storage unit for character walking detection;The input end of first storage unit and second storage unit is connected with the other end of main control unit;First sampling circuit for pulse sampling;Main control unit includes the pulse control unit for adjusting the pulse constant of first sampling circuit.Distinguish the storage block when character walking test and normal work, prevent the electric quantity accumulation of electric energy meter normal work from being disturbed;Pulse control unit is used to adjust pulse constant, to adjust the time of character walking test.The pulse constant of sampling unit is doubled, and the pulse constant after doubling is an integer multiple of the pulse constant when resetting, and the test duration required for measuring a certain electric quantity is an integer multiple of one of the same electric quantity measured by the original pulse constant, shortens the character walking test cycle of electric energy meter, improves the efficiency of gauge.

Description

Technical Field

[0001] This invention relates to the field of electricity meter testing technology, and in particular to a high-efficiency electricity meter power accumulation detection device and testing method. Background Technology

[0002] Electricity has been applied to all aspects of people's daily lives, and electricity meters have become an indispensable part of social development. People need electricity meters to measure their electricity consumption. Electricity meters need to pass reading tests, withstand voltage tests, and other tests before they can be put into use.

[0003] Existing technologies for detecting electricity meter readings involve supplying a current to the meter for detection. High-power readings require a large current and readings are based on the actual reading power, resulting in a long processing time. Low-power readings require a small current and readings are based on the actual reading power, but this requires a significant amount of time to accumulate readings, making it even more time-consuming than high-power readings. After each reading, the meter needs to be returned to the generation process and repeated, resulting in long testing cycles and low testing efficiency.

[0004] For example, a method for detecting aging readings disclosed in Chinese patent literature, CN106199495A, includes a reading carriage, a reading source, a lower meter, a control master meter with a main controller, and an input device for inputting the meter number of the corresponding lower meter to the control master meter; the reading source can form a current loop with the control master meter and the lower meter; the input device is communicatively connected to the control master meter and the lower meter; the control master meter and the reading source are connected by a signal for controlling the opening and closing of the reading source by the control master meter to control the on / off state of the current loop between the reading source and the control master meter and the lower meter, and to switch the positive and negative reading current.

[0005] In the opposite direction. The above scheme uses the current driving the energy meter to register the readings. The energy meter registers the readings based on the actual power of the driving current, which takes a long time and results in a long testing cycle and low testing efficiency. Summary of the Invention

[0006] The present invention aims to solve the problems of long testing cycles and low testing efficiency in existing electricity meter reading detection tests, and provides an efficient electricity meter power accumulation detection device and method to shorten the electricity meter reading test cycle and improve meter testing efficiency.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency electricity meter power accumulation detection device, comprising:

[0008] A first storage unit for power accumulation and a second storage unit for data movement detection; the input terminals of the first and second storage units are connected to the other end of the main control unit;

[0009] A first sampling circuit is used for pulse sampling, and its output is connected to one end of the main control unit. The main control unit includes a pulse control unit for adjusting the pulse constant of the first sampling circuit. A first storage unit and a second storage unit belong to different physical addresses. The first storage unit stores the accumulated electricity consumption during normal operation of the energy meter, while the second storage unit stores the accumulated electricity consumption during the meter's running test. This distinguishes between the storage blocks for the running test and normal operation, preventing interference with the accumulated electricity consumption during normal operation. The pulse control unit adjusts the pulse constant, thereby adjusting the running test time and improving test efficiency.

[0010] Preferably, the main control unit includes a first switching unit for switching between using the first storage unit and the second storage unit for storage. The first switching unit switches between connecting the first storage unit and the main control unit, or between the second storage unit and the main control unit. The first switching unit may be a switch unit.

[0011] Preferably, the pulse control unit is used to receive a pulse doubling signal or a pulse reset signal, and performs a pulse constant doubling operation on the first sampling circuit according to the pulse doubling signal; and performs a pulse constant reset operation on the first sampling circuit according to the pulse reset signal. The doubled pulse constant is an integer multiple of the pulse constant at the time of reset, and the test time required to measure a certain amount of electricity is one-in-one of the integer multiples of the original pulse constant required to measure the same amount of electricity, thus shortening the electricity meter's reading test cycle and improving meter inspection efficiency.

[0012] As a preferred alternative, the pulse control unit switches the pulse constant by switching the sampling element connected in the sampling circuit; when the pulse constant is doubled, the parameter value of the connected sampling element is a multiple of the parameter value of the connected sampling element when the pulse constant is reset.

[0013] Preferably, a second sampling circuit for photoelectric sampling is included, the output of which is connected to one end of the main control unit. Both photoelectric sampling and pulse sampling are provided to expand the sampling functionality.

[0014] Preferably, the main control unit includes a second switching unit for switching between the operation of the first sampling circuit and the operation of the second sampling circuit. This allows for switching between multiple sampling modes, enriching the functions of the energy meter.

[0015] Preferably, the second switching unit is used to receive a sampling mode switching signal. Upon receiving the sampling mode switching signal, it switches the connection between the main control unit and the first and second sampling units. Multiple sampling modes can be switched to enrich the functions of the energy meter.

[0016] Preferably, the first switching unit is used to receive the pulse constant doubling action signal from the pulse control unit. After receiving the pulse constant doubling action signal from the pulse control unit, it switches to use the second storage unit. The switching between the first and second storage units is linked to the pulse constant doubling adjustment, ensuring that when using pulse constant doubling detection, the data is stored in the dedicated storage address for data movement detection, avoiding overwriting normal measurement data.

[0017] Preferably, the first switching unit is used to receive the pulse constant reset action signal from the pulse control unit. After receiving the pulse constant reset action signal from the pulse control unit, it switches to use the first storage unit. This ensures that when the electricity meter is measuring normally, the data is stored in the normal measurement data storage address.

[0018] A method for detecting the cumulative electricity consumption of an electricity meter, using an electricity meter with high-efficiency reading detection as described in any one of the above-mentioned methods, comprising:

[0019] During the reading detection, the pulse constant of the energy meter is obtained, and a pulse doubling signal is sent through the pulse control unit to set the reading pulse to an integer multiple of the energy meter pulse; at the same time, the storage unit is switched to the second storage unit, and the sampling circuit is switched to the first sampling circuit.

[0020] During metering operation, a pulse reset signal is sent through the pulse control unit, simultaneously switching the storage module to the first storage module and the sampling circuit to the second sampling circuit. This efficiently completes the verification of accumulated electricity consumption, ensuring the accuracy of electricity metering.

[0021] Preferably, the detection device is divided into a reading detection mode and a metering mode. When a pulse doubling signal is received, the energy meter is switched to the reading detection mode.

[0022] Therefore, the present invention has the following beneficial effects: (1) A first storage unit for power accumulation and a second storage unit for power meter reading detection are set up; the storage blocks for power meter reading detection and normal operation are distinguished to prevent interference with the power accumulation during normal operation of the power meter; the pulse control unit is used to adjust the pulse constant, thereby adjusting the time of power meter reading test and improving the test efficiency. (2) A pulse control unit is set up to double the pulse constant of the sampling unit. The doubled pulse constant is an integer multiple of the pulse constant at the reset time. The test time required to measure a certain amount of power is one-in-one of the integer multiple of the original pulse constant for measuring the same amount of power, shortening the power meter reading test cycle and improving the meter inspection efficiency. (3) A second sampling circuit for photoelectric sampling is set up, which simultaneously includes photoelectric sampling and pulse sampling, expanding the sampling function. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the sampling structure of a high-efficiency electricity meter power accumulation detection device according to an embodiment of the present invention.

[0024] Figure 2 This is a flowchart illustrating the inspection mode of a high-efficiency electricity meter power accumulation detection device according to an embodiment of the present invention.

[0025] Figure 3 This is a flowchart illustrating the working mode switching method of a high-efficiency electricity meter power accumulation detection device according to an embodiment of the present invention.

[0026] Figure 4 This is a control flowchart of a pulse switching device according to another embodiment of the present invention.

[0027] In the figure: 1. First sampling circuit; 2. Second sampling circuit; 3. Main control unit; 31. Pulse control unit; 4. First storage unit; 5. Second storage unit; 6. First switching unit; 7. Second switching unit. Detailed Implementation

[0028] The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

[0029] Example 1:

[0030] A high-efficiency energy meter with digit detection, such as Figure 1 The sampling structure shown includes:

[0031] A first sampling circuit 1 is used for pulse sampling, and its output is connected to one end of a main control unit 3. The main control unit 3 includes a pulse control unit 31 for adjusting the pulse constant of the first sampling circuit 1. The first sampling circuit 1 is equipped with several sampling elements whose parameter values ​​are multiples of each other. The pulse control unit 31 receives a pulse doubling signal or a pulse reset signal. Based on the pulse doubling signal, it performs a pulse constant doubling action on the first sampling circuit 1. The pulse control unit 31 adjusts the pulse constant multiple of the sampling circuit by switching the sampling elements connected in the sampling circuit; based on the pulse reset signal, it performs a pulse constant reset action on the first sampling circuit 1. The doubled pulse constant is an integer multiple of the reset pulse constant. The test time required to measure a certain amount of electricity is one-in-one of the integer multiples of the original pulse constant required to measure the same amount of electricity, thus shortening the meter's reading test cycle and improving meter inspection efficiency.

[0032] The system includes a second sampling circuit 2 for photoelectric sampling, the output of which is connected to one end of the main control unit 3. The main control unit 3 includes a second switching unit 7 for switching between the operation of the first sampling circuit 1 and the second sampling circuit 2. The second switching unit 7 receives a sampling mode switching signal and, upon receiving the signal, switches the connection between the main control unit 3 and the first and second sampling units. This multi-mode switching capability enriches the functions of the energy meter.

[0033] A first storage unit 4 is used for electricity accumulation, and a second storage unit 5 is used for data movement detection. The input terminals of the first storage unit 4 and the second storage unit 5 are connected to the other end of the main control unit 3. The main control unit 3 includes a first switching unit 6 for switching between using the first storage unit 4 and the second storage unit 5 for storage. The first switching unit 6 receives a pulse constant doubling action signal and a pulse constant reset action signal from the pulse control unit 31. After receiving the pulse constant doubling action signal from the pulse control unit 31, it switches to using the second storage unit 5. The switching between the first storage unit 4 and the second storage unit 5 is linked to the pulse constant doubling adjustment, ensuring that when using pulse constant doubling for data movement detection, the data is stored in the dedicated storage address for data movement detection, avoiding overwriting normal metering data. After receiving the pulse constant reset action signal from the pulse control unit 31, it switches to using the first storage unit 4. This ensures that when the electricity meter is measuring normally, the data is stored in the dedicated address for normal metering data storage, ensuring that the data is stored in the normal metering data storage address.

[0034] This embodiment also discloses an efficient method for detecting the running numbers of an energy meter, such as... Figure 3 As shown, the detection device is divided into two modes: running detection mode and metering mode. When a pulse doubling signal is received, the energy meter is switched to running detection mode.

[0035] like Figure 2 As shown, during the meter reading test, the pulse constant of the electricity meter is obtained, the rated voltage and rated current are applied, and it is observed whether the active power is carried over to 1 unit when the meter outputs a pulse of the specified constant.

[0036] For example, if the three-phase meter body is set to 3×230×10A, 1.0L, when the active power is accumulated to 1kWh, the pulse counter will count 1000 pulses.

[0037] The pulse doubling signal is sent through the pulse control unit 31 to set the running pulse to an integer multiple of the energy meter pulse; and at the same time, the storage unit is switched to the second storage unit 5 and the sampling circuit is switched to the first sampling circuit 1.

[0038] When used for metering, a pulse reset signal is sent through the pulse control unit 31, and the storage module is switched to the first storage module, and the sampling circuit is switched to the second sampling circuit 2.

[0039] The power data is in 29 bytes: 580F02000037080000005FFC0000008E6200000034A8000000816D29A9;

[0040] 580F020000 --- Total battery power, representing the 0x020F58 pulse array.

[0041] 3708000000 --- Total battery power, representing the array of 0x000837 pulses.

[0042] 5FFC000000 --- Total battery capacity, representing 0x00FC5F pulses.

[0043] 8E62000000 --- Total battery power, representing 0x00628E pulses.

[0044] 34A8000000 --- Total battery capacity, representing the array 0x00A834 pulses.

[0045] 816D----------The CRC checksum represents a value of 0x6D 81

[0046] 29A9-----Swap checksum.

[0047] The doubled pulse constant is an integer multiple of the pulse constant at reset. The test time required to measure a certain amount of electricity is one-in-one of the integer multiple of the original pulse constant required to measure the same amount of electricity, thus shortening the test cycle of the electricity meter and improving the meter inspection efficiency.

[0048] Example 2:

[0049] To implement the above embodiments, Embodiment 2 of the present invention also provides a pulse switching device, which includes a pulse constant doubling button. When the pulse constant doubling button is pressed, the pulse constant multiplier increases. The multiplier of the pulse constant is controlled by the length of the button delay. Figure 4 As shown, when the pulse constant doubling button is pressed for less than 1 second, the pulse constant is multiplied by 1; when the pulse constant doubling button is pressed for more than 1 second but less than 2 seconds, the pulse constant is multiplied by 2; and so on, to achieve the doubling adjustment of the pulse constant multiple.

[0050] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

[0051] Although this document uses terms such as pulse constant, sampling circuit, switching unit, and storage unit frequently, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of the invention; interpreting them as any additional limitation would contradict the spirit of the invention.

Claims

1. A high-efficient electric energy meter electric quantity accumulation detection device, characterized in that, Comprising: a first storage unit for power accumulation and a second storage unit for character walking detection; the input ends of the first storage unit and the second storage unit are connected to the other end of the master control unit; a first sampling circuit for pulse sampling, the output end of the first sampling circuit is connected to one end of the master control unit; the master control unit comprises a pulse control unit for adjusting the pulse constant of the first sampling circuit; the master control unit comprises a second switching unit for switching the first sampling circuit or the second sampling circuit to work after receiving a sampling mode switching signal, and a first switching unit for switching the storage of the first storage unit or the second storage unit after receiving a pulse constant doubling or reset action signal.

2. The high-efficient electric energy meter electric quantity cumulative detection device according to claim 1, characterized in that, The master control unit comprises a first switching unit for switching the storage of the first storage unit or the second storage unit, and the mode of the detection device is divided into a character walking detection mode and a metering mode, and when a pulse doubling signal is received, the electric energy meter is switched to the character walking detection mode.

3. The high-efficient electric energy meter electric quantity cumulative detection device according to claim 1 or 2, characterized in that, The pulse control unit is used for receiving a pulse doubling signal or a pulse reset signal, and performing a pulse constant doubling action on the first sampling circuit according to the pulse doubling signal; and performing a pulse constant reset action on the first sampling circuit according to the pulse reset signal.

4. The high-efficient electric energy meter electric quantity cumulative detection device according to claim 3, characterized in that, Comprising a second sampling circuit for photoelectric sampling, the output end of the second sampling circuit is connected to one end of the master control unit.

5. The high-efficient electric energy meter electric quantity cumulative detection device according to claim 1, characterized in that, The first switching unit is used for receiving a pulse constant doubling action signal of the pulse control unit, and after receiving the pulse constant doubling action signal of the pulse control unit, the second storage unit is switched to be used.

6. The high-efficient electric energy meter electric quantity cumulative detection device according to claim 5, characterized in that, The first switching unit is used for receiving a pulse constant reset action signal of the pulse control unit, and after receiving the pulse constant reset action signal of the pulse control unit, the first storage unit is switched to be used.

7. A high-efficiency electric energy meter electric quantity accumulation detection method, using the high-efficiency electric energy meter electric quantity accumulation detection device of any one of claims 1-6, characterized in that, Comprising: When character walking detection is performed, the pulse constant of the electric energy meter is obtained, a pulse doubling signal is sent through the pulse control unit, and the character walking pulse is set to be an integer multiple of the pulse of the electric energy meter; and at the same time, the storage unit is switched to the second storage unit, and the sampling circuit is switched to the first sampling circuit; When metering is used, a pulse reset signal is sent through the pulse control unit, at the same time, the storage module is switched to the first storage module, and the sampling circuit is switched to the second sampling circuit.

8. The high-efficiency electric energy meter electric quantity accumulation detection method according to claim 7, characterized in that, Comprising: The mode of the detection device is divided into a character walking detection mode and a metering mode, and when a pulse doubling signal is received, the electric energy meter is switched to the character walking detection mode.

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