CN102121977A - A detection method and device for an IC card electric energy meter - Google Patents

Abstract

The invention provides a method and device for detecting an electric energy meter with an IC card. The method includes: writing an electric energy meter test instruction into the IC card; sending the electric energy meter test instruction to the electric energy meter; receiving the electric energy meter according to the The feedback information generated by the electric energy meter test command; the judgment result is generated according to the feedback information. The present invention can automatically send the information in the IC card to the electric energy meter under test through the set program, and can automatically collect the detection results of the electric energy meter, and automatically judge the response status of the electric energy meter, thereby reducing manual intervention and improving the testing process degree of automation and efficiency.

Description

A detection method and device for an IC card electric energy meter

technical field

The invention relates to electric energy meter technology, in particular to IC card electric energy meter detection technology, and specifically relates to an IC card electric energy meter detection method and device.

Background technique

In recent years, with the rapid development of electronic information technology, advanced electronic information technology has been applied to electric energy meters, and electric energy meters using IC cards for prepayment have begun to be popularized in the field of metering and settlement. After adopting this technology, the consumption mode of purchase first and use later can be realized, which solves the problem of arrears of electricity bills from the source and reduces the management cost of power suppliers.

The card-type prepaid electric energy system based on embedded IC technology, because the meter itself adds an additional physical medium IC card and card reader equipment, the complexity of the system increases; at the same time, the information on the card is associated with trade settlement information, the information Once attacked, the user of the card table or the provider of the card table will suffer direct economic losses. In order to ensure that the electricity transaction data of the electric energy meter can exchange information accurately with the marketing system of the power grid company, it is necessary to inspect and test the functions of the electric energy meter with an IC card.

The testing method in the prior art is as follows: manually issue a function card with a specific function on the IC card issuing system, and then manually insert the function card with specific information into the electric meter. After the meter detects that the function card is inserted, it performs corresponding actions according to the function information on the card. People observe with the naked eye or use a multimeter to manually check whether the action of the IC card electric energy meter meets the regulations, and finally manually input the results seen or measured into the computer for data entry.

In the process of realizing the present invention, the inventor finds that at least the following deficiencies exist in the prior art:

The whole process basically completes all operations manually, and the degree of automation is very low. In the existing electric energy meter testing method, the entire process is basically done manually, and the function card needs to be programmed many times, and only one electric energy meter can be tested at a time, and the response status of the electric meter cannot be judged automatically. , The degree of automation of the test process is low and the efficiency is low.

Contents of the invention

The invention provides an electric energy meter detection method and device to realize automatic control of electric energy meter detection and improve the automation degree and efficiency of the test process.

In order to achieve the above object, in one embodiment, the present invention provides a method for detecting an electric energy meter with an IC card, the method comprising: writing an electric energy meter test instruction into the IC card; sending the electric energy meter test instruction to the electric energy meter ; receiving feedback information generated by the electric energy meter according to the electric energy meter test instruction; judging whether the electric energy meter is working normally according to the feedback information, and outputting a judgment result.

In order to achieve the above object, in one embodiment, the present invention provides a kind of IC card watt-hour meter detection device, and this device comprises: instruction writing unit, writes watt-hour meter test instruction in IC card; Instruction sending unit, is used for The electric energy meter test instruction is sent to the electric energy meter; the feedback information receiving unit is used to receive the feedback information generated by the electric energy meter according to the electric energy meter test instruction; the judgment result generation unit is used to generate the electric energy meter according to the feedback information critical result.

The beneficial effect of the embodiment of the present invention:

The present invention can automatically send the information in the IC card to the measured electric energy meter through the set program, and can automatically collect the detection results of the electric energy meter, and automatically make judgments on the response status of the electric energy meter, thereby reducing manual intervention and improving the testing process degree of automation and efficiency.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort. In the attached picture:

Fig. 1 is the IC card electric energy meter detection method flowchart of the embodiment of the present invention;

Fig. 2 is the structural representation of the electric energy meter testing system of the embodiment of the present invention;

Fig. 3 is the internal connection diagram of the electric energy meter testing system of the embodiment of the present invention;

4 is a schematic diagram of an internal control module of a computer according to an embodiment of the present invention;

Fig. 5 is the structural representation of the IC card electric energy meter detection device of the embodiment of the present invention;

Fig. 6 is the specific parameter data of the implementation test scheme of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

As shown in Figure 1, the embodiment of the present invention provides a kind of IC card electric energy meter detection method, and this method comprises:

Step S101: write the electric energy meter test command into the IC card;

Step S102: Send the electric energy meter test command to the electric energy meter;

Step S103: receiving the feedback information generated by the electric energy meter according to the electric energy meter test instruction;

Step S104: Generate a judgment result according to the feedback information.

As can be seen from the flow chart shown in Figure 1, in the embodiment of the present invention, by writing the test instruction of the electric energy meter in the IC card, and sending the test instruction of the electric energy meter to the electric energy meter, then receiving the electric energy meter according to the The feedback information generated by the electric energy meter test command can judge whether the electric energy meter is working normally, and can automatically send the information in the IC card to the electric energy meter under test through the set program, and can automatically collect the detection results of the electric energy meter, and automatically The response status of the electric meter is judged, which reduces manual intervention and improves the automation and efficiency of the test process.

In one embodiment, before writing the electric energy meter test instruction into the IC card, the method may further include: sending an electric energy meter operation parameter setting instruction to the programmable power supply, so as to turn on the electric energy meter according to the electric energy meter operating parameter output by the programmable power supply IC card reader and writer with the IC card.

In one embodiment, before sending the electric energy meter test instruction to the electric energy meter, the method further includes: sending a device connection instruction to the card insertion action simulator of the electric energy meter to turn on the card insertion action Simulator and IC card. Sending the electric energy meter test instruction to the electric energy meter specifically includes: sending the electric energy meter test instruction to the card insertion action simulator, so that the electric energy meter receives the electric energy meter test instruction.

In one embodiment, the IC card electric energy meter is a three-phase electric energy meter, and the programmable power supply is a three-phase programmable power supply.

The structural diagram of the electric energy meter testing system according to the embodiment of the present invention is shown in FIG.

The computer 201 is used to control the testing process of the electric energy meter; the program-controlled power supply 202 is used to provide power for the whole test system; the meter frame 205 can hang a plurality of suspended electric energy meters 203; the plug-in card simulator 204 is installed on the electric energy meter 203 for simulating Actual card insertion action.

The internal connection relationship of the electric energy meter test system of the embodiment of the present invention is shown in Figure 3, and it can be seen in conjunction with Figure 2 that the hardware part of the electric energy meter test system of the embodiment of the present invention includes: a computer 301; a meter frame 205 for hanging and connecting the tested Electric energy meter; three-phase program-controlled power supply 202, which provides the working power of the electric energy meter under test, simulates various situations on site, and triggers the alarm information of the electric energy meter; IC card reader 304, reads and writes data to the electric meter IC card The IC card card simulator 306 realizes the physical interface of the software simulation card, and the IC card card simulator 306 can simulate the manual card card action under software control; the status light 308 is used to indicate various actions of the electric energy meter, The relay state detecting module 307 is connected with the relay in the electric energy meter, and is used for detecting the actual output state of the relay in the electric energy meter, and transmits the state to the computer through the data bus.

As shown in FIG. 4 , the computer 101 in FIG. 3 includes: a program-controlled power supply control module 401 , an IC card reading and writing function module 402 , an energy meter information collection module 403 , a card emulator control module 404 and an interface module 405 for meter communication.

The program-controlled power supply control module 401 changes and outputs three-phase voltage and current according to the instructions specified by the computer.

The computer combined with the IC card reader 304 can write various information into the IC card through the IC card read/write function module 402, and can also read the information written back to the IC card by the electric energy meter from the IC card.

The energy meter information collection module 403 is responsible for collecting various status information data sent by the energy meter, such as status light information and relay trip information.

The card insertion simulator control module 404 is responsible for driving the card insertion simulator at a designated location to simulate manual card insertion.

The interface module 405 of the electric meter communication can directly read the internal variable information of the electric meter from the electric meter, which is used as one of the criteria for judging whether the operation of the electric meter is accurate.

As shown in Figure 5, the embodiment of the present invention provides a kind of IC card electric energy meter detecting device, and this IC card electric energy meter detecting device comprises: instruction writing unit 501, instruction sending unit 502, feedback information receiving unit 503 and judgment result generating unit 504.

The instruction writing unit 501 is used for writing the electric energy meter test instruction into the IC card.

The instruction sending unit 502 is used to send the electric energy meter test instruction to the electric energy meter; specifically, it is used to send the electric energy meter test instruction to the card insertion action simulator, so that the electric energy meter receives the electric energy meter test instruction.

A feedback information receiving unit 503, configured to receive feedback information generated by the electric energy meter according to the electric energy meter test instruction;

The judgment result generating unit 504 is configured to generate a judgment result according to the feedback information.

In one embodiment, the instruction sending unit 502 is also used to send the electric energy meter operating parameter setting instruction to the programmable power supply, so as to connect the IC card reader and the IC card reader according to the electric energy meter operating parameters output by the programmable power supply. card; sending a device connection command to the card insertion action simulator of the electric energy meter, so as to connect the card insertion action simulator and the IC card.

The IC card watt-hour meter is a three-phase watt-hour meter, and the program-controlled power supply is a three-phase program-controlled power supply.

As can be seen from Fig. 5, in the embodiment of the present invention, by writing electric energy meter test instruction in IC card, and described electric energy meter test instruction is sent to electric energy meter, then receives described electric energy meter according to described electric energy meter The feedback information generated by the test command can judge whether the electric energy meter is working normally. The information in the IC card can be automatically sent to the electric energy meter under test through the set program, and the detection results of the electric energy meter can be collected automatically, and the response status of the electric energy meter can be automatically collected. Making judgments reduces manual intervention and improves the automation and efficiency of the testing process.

The following takes writing tripping information into the IC card as an example to describe in detail how to detect the function of the energy meter.

Before testing the function of the electric energy meter, it is necessary to connect the electric energy meter to be tested to the meter frame as shown in Figure 2, and multiple electric energy meters can be connected to the meter frame at a time.

Assuming that the relay tripping, closing function and power alarm function of the electric energy meter are to be measured, a specific test scheme needs to be set first, as shown in Figure 6, the present invention implements the specific parameter data of the test scheme, the present invention Just take writing trip information into the card to make the relay trip/close as an example.

Assume that the energy meter under test is a 3P4W active 220V 10(60)A built-in magnetic latching relay IC card prepaid energy meter.

Before the test starts, you need to set the parameters of the electric energy meter, select the electric meter type 3P4W active electric energy meter, the rated current of the input electric meter is 10A, the maximum current is 60A, the voltage is 220V, and the relay type of the electric meter is selected as "built-in magnetic latch".

According to the electric energy meter parameters set above, the instruction sending unit sends the electric energy meter operation parameter setting instruction to the three-phase programmable power supply, so that the three-phase programmable power supply outputs the specified voltage and current values. When the three-phase program-controlled power supply outputs the specified voltage value and current value, the computer sends a connection command to the built-in MCU on the meter frame. After receiving the connection command, the MCU controls the relay to connect the IC card reader and IC card.

The instruction writing unit 501 writes trip information into the IC card according to a preset test plan, and the trip information includes card type identification and key information.

The instruction sending unit 502 sends the device connection instruction to the card insertion action simulator of the electric energy meter to connect the described card insertion action simulator and the IC card, and then the instruction sending unit 502 sends the electric energy meter test instruction to the insertion The card action simulator, so that the energy meter test command is sent to the energy meter, which is equivalent to the card insertion action simulator simulating the action of inserting the IC card into the energy meter.

After the energy meter receives the information, if the energy meter can trip normally, the relay will perform the trip action. At this time, the relay detection module will send the trip information of the relay to the computer to inform the computer that the relay has performed a trip, and at the same time it is used to monitor the state of the energy meter The status light of the relay will also send the relay trip information to the computer.

If the information received by the computer from the relay detection module is not trip information, and the information received from the status light is not trip information, the energy meter cannot trip normally, and the energy meter is faulty.

When the IC card is turned on again, it is also necessary to detect whether the relay of the electric energy meter can be closed normally.

In the embodiment of the present invention, the status light is controlled by the photoelectric detection system. The working principle of the photoelectric detection system is: the electric meter sends out status signals such as alarm and trip, and the glitch signal on the pulse is filtered out by the pulse shaping circuit, and different LED status lights display different The state signal, after the LED state is converted into a level signal, is collected by the single chip microcomputer, and then can be connected to the serial port of the computer through the 232 communication conversion circuit, and the computer receives the state information of the meter through the communication port expander.

The relay detection module is a relay state detection system. The working principle is: the current sampling transformer detects the current flowing through the internal relay of the electric energy meter, generates a relay opening and closing signal according to the opening and closing of the relay switch, and then converts the relay opening and closing signal into a level The signal is sent to the computer for status detection of the relay.

The present invention only uses the example of writing tripping information into the IC card to illustrate the present invention, and is not used to limit the present invention. When the information written in the IC card is the information of the power purchase card, the IC card becomes the power purchase card, which can Write information such as the power purchase card identification, key information, power information, and trip power value information into the IC card. When the power of the power purchase card is equal to the trip power value, check whether the power meter performs tripping. When the IC card is connected again , check whether the energy meter continues to run according to the remaining power.

The beneficial effect of the embodiment of the present invention:

The present invention can automatically send the information in the IC card to the measured electric energy meter through the set program, and can automatically collect the detection results of the electric energy meter, and automatically make judgments on the response status of the electric energy meter, thereby reducing manual intervention and improving the testing process degree of automation and efficiency.

The specific embodiments described above have further described the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above descriptions are only specific embodiments of the present invention and are not intended to limit the scope of the present invention. Protection scope, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.

Claims (10)

1. IC-card electric energy meter detection method is characterized in that described method comprises:

In IC-card, write the electric energy meter test instruction;

Described electric energy meter test instruction is sent to electric energy meter;

Receive the feedback information that described electric energy meter generates according to described electric energy meter test instruction;

Generate judged result according to described feedback information.

2. the method for claim 1 is characterized in that, write the electric energy meter test instruction in IC-card before, described method also comprises:

Send the electric energy meter operational factor to programmable power supply instruction is set, to connect IC-card read write line and described IC-card according to the electric energy meter operational factor of described programmable power supply output.

3. the method for claim 1 is characterized in that, before described electric energy meter test instruction was sent to electric energy meter, described method also comprised:

Plug-in card action simulation device transmitting apparatus to electric energy meter goes code, to connect described plug-in card action simulation device and IC-card.

4. method as claimed in claim 3 is characterized in that, described electric energy meter test instruction is sent to electric energy meter, comprising:

Send the electric energy meter test instruction to described plug-in card action simulation device, so that electric energy meter receives the electric energy meter test instruction.

5. the method for claim 1 is characterized in that, described IC-card electric energy meter is a three-phase electric energy meter.

6. an IC-card detection device of electric energy meter is characterized in that, described device comprises:

The instruction writing unit is used for writing the electric energy meter test instruction to IC-card;

Instruction sending unit is used for described electric energy meter test instruction is sent to electric energy meter;

The feedback information receiving element is used to receive the feedback information that described electric energy meter generates according to described electric energy meter test instruction;

The judged result generation unit is used for generating judged result according to described feedback information.

7. device as claimed in claim 6 is characterized in that,

Described instruction sending unit also is used for sending the electric energy meter operational factor to programmable power supply instruction is set, to connect IC-card read write line and described IC-card according to the electric energy meter operational factor of described programmable power supply output.

8. device as claimed in claim 6 is characterized in that,

Described instruction sending unit also is used for going code to the plug-in card action simulation device transmitting apparatus of electric energy meter, to connect described plug-in card action simulation device and IC-card.

9. device as claimed in claim 8 is characterized in that, described instruction sending unit specifically is used for sending the electric energy meter test instruction to described plug-in card action simulation device, so that electric energy meter receives the electric energy meter test instruction.

10. device as claimed in claim 6 is characterized in that, described IC-card electric energy meter is a three-phase electric energy meter.

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