CN110864728A - A system and method for testing metering data acquisition terminal - Google Patents

Abstract

The invention discloses a system and a method for testing a metering data acquisition terminal, and belongs to the technical field of metering data acquisition. The system of the invention comprises: the industrial personal computer is connected with the metering data acquisition terminal to be tested, simulates a virtual electric energy meter system according to the electric energy meter system, receives operation data transmitted by the Ethernet-to-RS 232 module, and tests the metering data acquisition terminal to be tested according to the operation data; the controller generates an analog signal and outputs the analog signal to the Ethernet-to-RS 232 module; the Ethernet-to-RS 232 module simulates the operation of the electric energy meter according to the simulation signal, outputs operation data and transmits the operation data to the industrial personal computer; an auxiliary module to transmit an analog signal. The invention meets the requirement that the majority of power users are used for the verification of terminals such as a water-electricity-gas-heat metering collector, a concentrator and the like. The invention can meet the requirement of the laboratory for functional verification of terminals such as a hydroelectric heat metering collector, a concentrator and the like.

Description

A system and method for testing metering data acquisition terminal

technical field

The present invention relates to the technical field of measurement data collection, and more particularly, to a system and method for testing measurement data collection terminals.

Background technique

Acquisition terminals (concentrators, collectors, special-purpose acquisition terminals, and communication interface converters) require various meters to cooperate with and detect some basic functions during the pre-commissioning work in the laboratory. To build a test environment, there are many wirings, and there are many types of meters, and the test items are complicated. It needs to manually set the test item by item, and it takes time to use the current source to run the word, and the displacement of the remote signal needs to be manually shorted manually. Each time requires manual setting, and requires a separate computer to perform various operations on the acquisition terminal, which takes a long time.

Moreover, with the promotion of the deepening application of the power collection system, in addition to the traditional products and equipment such as concentrators, collectors, and special-purpose collection terminals, more and more new products in market segments are born. Integrated communication interface converter. The Metrology Center of China Electric Power Research Institute is responsible for the detection and access of all electricity collection equipment products. With the increase of new products, if you still rely on the method of building an actual experimental environment during the test process, the detection task and workload will become times or even several times. For example, if the test communication interface converter still uses real electric energy meters, water meters, gas meters and heat meters, plus current sources, voltage sources, pulse generators and other equipment to make it work to build the experimental environment, there are many equipments. Occupying a large area, many wirings, and setting complex experimental environment parameters, the experimental preparation process takes up a large part of the time, which seriously affects the efficiency of the experiment.

SUMMARY OF THE INVENTION

In view of the above-mentioned problems, the present invention provides a system for testing measurement data acquisition terminals, including:

An industrial computer, the industrial computer is connected to the measurement data acquisition terminal to be measured, simulates a virtual electric energy meter system according to the electric energy meter system, receives the operation data transmitted by the Ethernet to RS232 module, and tests the measurement data acquisition terminal to be measured according to the operation data;

a controller, the controller generates an analog signal, and outputs the analog signal to the Ethernet to RS232 module;

Ethernet to RS232 module, the Ethernet to RS232 module simulates the operation of the electric energy meter according to the analog signal, outputs the operation data, and transmits it to the industrial computer;

An auxiliary module that transmits analog signals.

Optionally, the controller, including:

a button module, the button module is used to generate an analog signal through a button operation;

A relay output module, the relay output module controls the shutdown of the Ethernet to RS232 module to simulate the operation of the electric energy meter according to the analog signal;

A pulse output module, the pulse output module outputs an analog signal.

Optional auxiliary modules, including RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to slave single-phase carrier module, RS232 to slave three-phase carrier module and RS232 to slave micro-power wireless module.

Optionally, the controller selects any of the RS232-to-RS485 module, RS232-to-slave M-Bus module, RS232-to-slave single-phase carrier module, RS232-to-slave three-phase carrier module, and RS232-to-slave micro-power wireless module according to the analog signal. one or more to transmit.

Optionally, the operation data includes: electric energy representation data, communication data, historical data, segmented tariff and event record data.

The present invention also provides a method for testing the measurement data acquisition terminal, comprising:

The industrial computer is connected to the measurement data acquisition terminal to be measured, and the virtual electric energy meter system is simulated according to the electric energy meter system;

The controller generates an analog signal and outputs the analog signal to the Ethernet to RS232 module;

The Ethernet to RS232 module simulates the operation of the electric energy meter according to the analog signal, outputs the operation data, and transmits it to the industrial computer;

The industrial computer receives the operation data transmitted by the Ethernet to RS232 module, and tests the measurement data acquisition terminal to be measured according to the operation data.

Optionally, analog signals are transmitted using auxiliary modules.

Optionally, the controller, including:

a button module, the button module is used to generate an analog signal through a button operation;

A relay output module, the relay output module controls the shutdown of the Ethernet to RS232 module to simulate the operation of the electric energy meter according to the analog signal;

A pulse output module, the pulse output module outputs an analog signal.

Optional, auxiliary modules, including, RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to slave single-phase carrier module, RS232 to slave three-phase carrier module and RS232 to slave micro-power wireless module;

The controller selects any one or more of RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to single-phase carrier module, RS232 to three-phase carrier module and RS232 to slave micro-power wireless module according to the analog signal to transmit.

Optionally, the operation data includes: electric energy representation data, communication data, historical data, segmented tariff and event record data.

The invention can realize the virtual meter system integrating "water, electricity, gas and heat" by setting and configuring the underlying equipment through the software of the industrial computer, so as to meet the requirements for building a test environment in a specific laboratory environment, and can be used to replace the physical meter , to achieve no wiring or less wiring, simplify the equipment, reduce the time of running the meter, and intelligentize the meter data to improve the safety, reliability and automation of the test work.

The present invention satisfies the verification of terminals such as water, electricity and heat metering collectors, concentrators, etc. used by the majority of electric power users.

The invention reduces the test wiring work, reduces the test operation steps at the same time, reduces the equipment simplification, reduces the large number of physical meters required for the previous test and builds the environment, reduces the time of running the meter, and greatly improves the test efficiency, and the meter data is intelligent and compatible with various meter types. Improve the safety, reliability and automation of test work.

The invention can meet the functional verification of terminals such as water, electricity and heat metering collectors, concentrators and the like in laboratories.

Description of drawings

FIG. 1 is a system structure diagram of the present invention for testing a metering data acquisition terminal;

FIG. 2 is a flow chart of a method for testing a metering data acquisition terminal according to the present invention.

Detailed ways

Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for the purpose of this thorough and complete disclosure invention, and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not intended to limit the invention. In the drawings, the same elements/elements are given the same reference numerals.

Unless otherwise defined, terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it is to be understood that terms defined in commonly used dictionaries should be construed as having meanings consistent with the context in the related art, and should not be construed as idealized or overly formal meanings.

The present invention provides a system for testing metering data acquisition terminals, as shown in Figure 1, including:

An industrial computer, the industrial computer is connected to the measurement data acquisition terminal to be measured, simulates a virtual electric energy meter system according to the electric energy meter system, receives the operation data transmitted by the Ethernet to RS232 module, and tests the measurement data acquisition terminal to be measured according to the operation data;

Point energy meters, including: electricity meters, water meters, gas meters and heat meters.

Operational data, including: energy representation, communication data, historical data, segmented rates and event record data.

a controller, the controller generates an analog signal, and outputs the analog signal to the Ethernet to RS232 module;

Controller, including:

a button module, the button module is used to generate an analog signal through a button operation;

A relay output module, the relay output module controls the shutdown of the Ethernet to RS232 module to simulate the operation of the electric energy meter according to the analog signal;

a pulse output module, the pulse output module outputs an analog signal;

Ethernet to RS232 module, the Ethernet to RS232 module simulates the operation of the electric energy meter according to the analog signal, outputs the operation data, and transmits it to the industrial computer;

An auxiliary module that transmits analog signals.

Auxiliary modules, including, RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to slave single-phase carrier module, RS232 to slave three-phase carrier module and RS232 to slave micro-power wireless module.

The controller selects any one or more of RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to single-phase carrier module, RS232 to three-phase carrier module and RS232 to slave micro-power wireless module according to the analog signal to transmit.

The invention can quickly realize the running of water, electricity, gas and heat virtual meters through the processor, reduce the running time, and the running mode can be set to three modes of single-step running, periodic running and simulation running. , the word step and cycle can be set, which is convenient to use. In addition to the basic function of running characters, it also has functions such as time-division measurement, time-division rate, and time recording.

The invention has the function of remote signaling simulation test: the virtual meter device is used for state quantity input to simulate the opening and closing state of the electric energy meter, and the remote signaling function of the tested terminal is tested. Among them, the operation of the closing state has two modes: "button real-time closing" and "continuous closing".

The invention has the function of remote control simulation test: the IO signal input detection module on the back of the device can detect the state change of the electric control module of the connected terminal, and can record the state change of the electric control module of the terminal, and record its latest state change time. In cooperation with the test system, it can judge whether the remote control function of the terminal is normal.

The present invention has the function of analog pulse output: the IO signal output module on the back of the device can simulate the output pulse signal, and the terminal with the metering function obtains the power and electricity simulated by the pulse signal through statistics and calculation of the pulse. In cooperation with the test system, it can complete the detection of such terminals with metering function, and judge whether the metering function of the terminal meets the requirements of the specification. The pulse output signal has 5 optional frequencies, and the pulse output quantity can be selected in 3 grades, and the pulse quantity can be customized within the range of 2-9999999.

The present invention can simulate up to 32 epitope virtual tables, and allows the arrangement and combination of 24 channels of RS485, 8 channels of MBUS, 4 channels of carrier and 2 channels of low-power wireless communication channels. In the configuration function, configuration items include communication channel, baud rate (communication rate), virtual table type, meter communication protocol, table address, address matching, and whether the table bit is enabled. When selecting a channel for each table position, in view of the number of hardware interfaces of the four types of communication channels, the number of each channel cannot exceed the number of its hardware interfaces; 9600bps four gears are available; virtual meter types include single-phase electric energy meter, three-phase three-wire electric energy meter, three-phase four-wire electric energy meter, water meter, gas meter and heat meter; meter communication protocol includes DL/T645 used by electric energy meter -2007, DL/T698.45-2017 communication protocol and CJ/T-188 communication protocol used by water, gas and heat meter interface converters; the setting of the meter address can be set according to the selected meter type and the device under test. Table address; according to the selected communication channel and the device under test, the address matching method can be set for each table bit, including two options of adaptive address and fixed address; after the above settings are completed, you can set the enable option to Complete the input or cut out of this epitope virtual table.

During the running process of the present invention, if there is no operation for a period of time, it will enter the rotation display interface, and the activated virtual tables will be displayed on the screen in turn according to the order of the table positions. The configuration content of the rotation display includes the number of windows displayed on each screen, The holding time of each screen display and the time when no operation triggers the display. The display content of energy meters and other types of meters can be freely selected:

The invention has RS485 load capacity test: the device is connected to the RS485 communication interface of the terminal under test, and the resistance value of the access line is constantly changed until the 485 communication between the device and the device under test is interrupted, and the resistance value r connected at this time is recorded, By calculating with the standard resistance value R of the 485 line of the electric energy meter (the 485 interface of n electric energy meters is connected to the 485 communication interface of the terminal in parallel), the equivalent number of mounted electric energy meters is obtained:

All virtual tables enabled in the present invention will be named with the table number and table type, and the interface provides real-time data viewing and modification functions. All data in the interface supports manual modification, and the device power-off data will not be lost, ensuring the use of continuity.

The present invention also provides a method for testing the measurement data acquisition terminal, as shown in FIG. 2 , including:

The industrial computer is connected to the measurement data acquisition terminal to be measured, and the virtual electric energy meter system is simulated according to the electric energy meter system;

The controller generates an analog signal and outputs the analog signal to the Ethernet to RS232 module;

The Ethernet to RS232 module simulates the operation of the electric energy meter according to the analog signal, outputs the operation data, and transmits it to the industrial computer;

The industrial computer receives the operation data transmitted by the Ethernet to RS232 module, and tests the measurement data acquisition terminal to be measured according to the operation data.

Operational data, including: energy representation, communication data, historical data, segmented rates and event record data.

Analog signals are transmitted using auxiliary modules.

Controller, including:

a button module, the button module is used to generate an analog signal through a button operation;

A relay output module, the relay output module controls the shutdown of the Ethernet to RS232 module to simulate the operation of the electric energy meter according to the analog signal;

A pulse output module, the pulse output module outputs an analog signal.

Auxiliary modules, including RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to slave single-phase carrier module, RS232 to slave three-phase carrier module and RS232 to slave micro-power wireless module;

The controller selects any one or more of RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to single-phase carrier module, RS232 to three-phase carrier module and RS232 to slave micro-power wireless module according to the analog signal to transmit.

The invention can realize the virtual meter system integrating "water, electricity, gas and heat" by setting and configuring the underlying equipment through the software of the industrial computer, so as to meet the requirements for building a test environment in a specific laboratory environment, and can be used to replace the physical meter , to achieve no wiring or less wiring, simplify the equipment, reduce the time of running the meter, and intelligentize the meter data to improve the safety, reliability and automation of the test work.

The present invention satisfies the verification of terminals such as water, electricity and heat metering collectors, concentrators, etc. used by the majority of electric power users.

The invention reduces the test wiring work, reduces the test operation steps at the same time, reduces the equipment simplification, reduces the large number of physical meters required for the previous test and builds the environment, reduces the time of running the meter, and greatly improves the test efficiency, and the meter data is intelligent and compatible with various meter types. Improve the safety, reliability and automation of test work.

The invention can meet the functional verification of terminals such as water, electricity and heat metering collectors, concentrators and the like in laboratories.

Claims (10)

1. A system for testing a metering data acquisition terminal, the system comprising: An industrial computer, the industrial computer is connected to the measurement data acquisition terminal to be measured, simulates a virtual electric energy meter system according to the electric energy meter system, receives the operation data transmitted by the Ethernet to RS232 module, and tests the measurement data acquisition terminal to be measured according to the operation data; a controller, the controller generates an analog signal, and outputs the analog signal to the Ethernet to RS232 module; Ethernet to RS232 module, the Ethernet to RS232 module simulates the operation of the electric energy meter according to the analog signal, outputs the operation data, and transmits it to the industrial computer; An auxiliary module that transmits analog signals. 2. The system of claim 1, the controller comprising: a button module, the button module is used to generate an analog signal through a button operation; A relay output module, the relay output module controls the shutdown of the Ethernet to RS232 module to simulate the operation of the electric energy meter according to the analog signal; A pulse output module, the pulse output module outputs an analog signal. 3. The system according to claim 1, the auxiliary module comprises, RS232 to RS485 module, RS232 to M-Bus module, RS232 to single-phase carrier module, RS232 to three-phase carrier module and RS232 to from Micropower Wireless Modules. 4. The system according to claim 1, wherein the controller selects RS232 to RS485 module, RS232 to M-Bus module, RS232 to single-phase carrier module, RS232 to three-phase carrier module and RS232 according to the analog signal to transmit from any one or more of the micropower wireless modules. 5. The system according to claim 1, wherein the operation data comprises: electrical energy representation data, communication data, historical data, segmented rates and event record data. 6. A method for testing a metering data collection terminal, the method comprising: The industrial computer is connected to the measurement data acquisition terminal to be measured, and the virtual electric energy meter system is simulated according to the electric energy meter system; The controller generates an analog signal and outputs the analog signal to the Ethernet to RS232 module; The Ethernet to RS232 module simulates the operation of the electric energy meter according to the analog signal, outputs the operation data, and transmits it to the industrial computer; The industrial computer receives the operation data transmitted by the Ethernet to RS232 module, and tests the measurement data acquisition terminal to be measured according to the operation data. 7. The method of claim 6, the analog signal is transmitted using an auxiliary module. 8. The method of claim 6, the controller, comprising: a button module, the button module is used to generate an analog signal through a button operation; A relay output module, the relay output module controls the shutdown of the Ethernet to RS232 module to simulate the operation of the electric energy meter according to the analog signal; A pulse output module, the pulse output module outputs an analog signal. 9. The method according to claim 7, the auxiliary module comprises, RS232 to RS485 module, RS232 to M-Bus module, RS232 to single-phase carrier module, RS232 to three-phase carrier module and RS232 to from the micropower wireless module; The controller selects any one or more of RS232 to RS485 module, RS232 to slave M-Bus module, RS232 to single-phase carrier module, RS232 to three-phase carrier module and RS232 to slave micro-power wireless module according to the analog signal to transmit. 10. The method of claim 6, wherein the operational data comprises: power meter data, communication data, historical data, segmented rates and event log data.

Images