CN115396338B - Load management terminal testing device and testing method - Google Patents
Load management terminal testing device and testing method Download PDFInfo
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- CN115396338B CN115396338B CN202210997062.9A CN202210997062A CN115396338B CN 115396338 B CN115396338 B CN 115396338B CN 202210997062 A CN202210997062 A CN 202210997062A CN 115396338 B CN115396338 B CN 115396338B
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- 238000012360 testing method Methods 0.000 title claims abstract description 74
- 238000004891 communication Methods 0.000 claims abstract description 56
- 230000011664 signaling Effects 0.000 claims abstract description 24
- 238000002788 crimping Methods 0.000 claims abstract description 10
- 238000010998 test method Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 8
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
- G08C23/04—Non-electrical signal transmission systems, e.g. optical systems using light waves, e.g. infrared
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/10—Power supply of remote control devices
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C2201/00—Transmission systems of control signals via wireless link
- G08C2201/90—Additional features
- G08C2201/92—Universal remote control
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention discloses a load management terminal testing device and a testing method. The testing device consists of eight parts, namely a crimping unit, a power supply control unit, an Ethernet communication unit, a relay control unit, an auxiliary terminal communication unit, a current analog output unit, a pulse metering unit and a virtual meter communication unit. Before the device is tested, the load management terminal is only required to be connected to the compression joint unit in a compression joint mode, the wiring of the strong current terminal voltage, the current and the weak current terminal remote control, remote signaling, pulse and RS485 is not needed to be completed manually, the power supply of the switch control device is controlled, the possibility of personal electric shock is avoided, and the device is time-saving, safe and easy to operate. The testing method is that the upper computer software at the PC end sends a testing instruction, the instruction is sent to the terminal through the testing device, the terminal returns an instruction execution result, the upper computer software automatically judges that the result is correct or incorrect, the processes of manually issuing the instruction and manually checking are omitted, and the testing efficiency is improved.
Description
Technical Field
The invention relates to the field of automatic testing of low-voltage power utilization terminals, in particular to a load management terminal testing device and a testing method.
Background
The load management terminal is a terminal device which is installed on the spot of a special transformer user and can realize the functions of remote meter reading, electric energy metering, equipment working condition, customer electricity load, electric energy monitoring and the like of the special transformer user. The load management terminal adopts a wall-mounted structure, the current laboratory performs detection on the load management terminal in a hanging platform mode, terminal wiring operations such as voltage, RS485, pulse, remote signaling and remote control are required before detection, the method has more manual wiring, and various parameters are required to be set by matching function test software, so that the method has more time consumption and complex operation.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art, provides a load management terminal testing device and a testing method, and aims to solve the problems of more manual wiring, long time consumption, complex operation, safety and easiness in operation and improvement of testing efficiency in the prior art.
The embodiment of the invention provides a load management terminal testing device and a testing method, wherein the design method comprises the following steps:
the load management terminal testing device is characterized by comprising a crimping unit, a power supply control unit, an Ethernet communication unit, a relay control unit, an auxiliary terminal communication unit, a current analog output unit, a pulse metering unit and a virtual meter communication unit, and specifically comprises the following components:
the crimping unit provides voltage and current binding posts of the load management terminal and a binding bar of an auxiliary terminal of the load management terminal, and is used for terminal power-on and auxiliary terminal connection;
the power supply control unit provides power-off control for the load management terminal;
the Ethernet communication unit provides communication control between the testing device and PC end upper computer software and communication between the testing device and the load management terminal;
the relay control unit provides open circuit and short circuit control of the meter tail of the load management terminal;
the auxiliary terminal communication unit is used for connecting the terminal remote control terminal with the remote signaling terminal and testing the terminal control function and the remote signaling deflection;
the current analog output unit provides three-phase current output;
the pulse metering unit provides a metering function of outputting pulses to the load management terminal;
the virtual meter communication unit provides meter reading reply messages, and the test terminal has meter reading function.
The test method of the load management terminal test device is characterized by comprising the following steps of:
the load management terminal comprises a plurality of uplink communication interfaces of RS232, RS485-3, infrared, ethernet and 4G channels;
the load management terminal comprises an RS485-1 downlink meter reading communication interface and an RS485-2 downlink meter reading communication interface;
the load management terminal comprises 5 paths of remote control ports including a round 1, a round 2, a round 3, a round 4 and an alarm;
the load management terminal comprises 5 paths of remote signaling interfaces, namely a remote signaling 1, a remote signaling 2, a remote signaling 3, a remote signaling 4 and a door contact;
the load management terminal comprises a positive pulse output terminal, a negative pulse output terminal, a second pulse output terminal and a public pulse output terminal;
the testing device is connected with the load management terminal through the Ethernet, and verifies the Ethernet communication function of the load management terminal;
the testing device and the PC end upper computer are in communication connection through the Ethernet, and the PC and the testing device are connected by a network cable before detection;
the relay control unit controls the open and short circuit connection of the meter tail of the load management terminal, the open and short circuit state change is recognized by the traffic acquisition of the load management terminal, the ammeter state character is shifted, and the PC terminal upper computer software tests the open and short circuit recognition function through the transparent reading of the ammeter state character;
the current analog output unit is used for outputting small current, and the PC end upper computer monitors metering accuracy and alarm of the output test terminal by controlling the current;
the pulse metering unit converts the positive pulse, the negative pulse and the second pulse output by the load management terminal into power values, and the power values are compared with the alternating acquisition power values of the load management terminal to verify the correctness of pulse output;
the load management terminal provides RS485-1 and RS485-2 as downlink meter reading communication ports, and the virtual meter communication unit can reply meter reading messages sent by the load management terminal through the RS485 and is used for simulating actual meter reading reply on site;
the PC terminal upper computer software judges the correctness of reading and storing the terminal data by reading the data stored by the load management terminal;
when the result message returned by the load management terminal is different from the expected result message of the upper computer software, the upper computer software prompts the test failure;
when the result message returned by the load management terminal is the same as the expected result message of the upper computer software, the upper computer software can prompt that the test is successful.
Compared with the prior art, the invention has the following main beneficial effects:
according to the load management terminal testing device and the load management terminal testing method, before the device is tested, the load management terminal is only required to be pressed onto the pressing unit, and wiring of voltage, current, remote control, remote signaling, pulse and 485 ports is not needed to be completed manually, so that time and labor are saved; only the power supply of the equipment is controlled through a switch, so that the operation is safe and easy; the virtual meter communication unit can reply the meter reading message sent by the load management terminal through the RS485, is used for simulating the actual meter reading reply on site, is not connected through an actual electric meter, reduces manpower, material resources and resource occupation, and is more comprehensive in test. The function test result can be displayed through the upper computer software interface, and is convenient and visual. The automatic acquisition and detection of the test result omits the process of manually issuing instructions and manually checking, and improves the test efficiency.
Drawings
FIG. 1 is a diagram of a load management terminal test device according to an embodiment of the present invention;
fig. 2 is a front view of a testing device for a load management terminal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully with reference to the detailed description given in the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without creative efforts, based on the embodiments of the present invention, such as embodiments which are used only without changing the basic principle of the claims, are included in the scope of protection of the present invention.
The implementation of the present invention will be described in detail below with reference to specific embodiments.
Fig. 1 shows a structural diagram of a load management terminal test apparatus.
The device comprises eight parts of a crimping unit, a power supply control unit, an Ethernet communication unit, a relay control unit, an auxiliary terminal communication unit, a current analog output unit, a pulse metering unit and a virtual meter communication unit, and is specifically as follows:
the crimping unit provides voltage and current binding posts of the load management terminal and a binding bar of an auxiliary terminal of the load management terminal, is used for terminal power-on and remote control, remote signaling, pulse and RS485 connection physical connection of the auxiliary terminal, is provided with a telescopic auxiliary terminal binding post, and is also suitable for other types of terminals;
the power supply control unit provides power-off control for the load management terminal, and controls the power-on and power-off of the meter tail of the load management terminal through the control switch;
the Ethernet communication unit provides communication control between the testing device and PC end upper computer software and communication between the testing device and the load management terminal, the upper computer software sends communication messages to the testing device through the Ethernet, the Ethernet communication unit respectively forwards the received messages sent by the PC end upper computer software to three uplink communication ports, namely RS232, RS485-3 or infrared, of the load management terminal, and then forwards the messages returned by the ports back to the upper computer software;
the relay control unit provides open circuit and short circuit control of the meter tail of the load management terminal by controlling the relay to open and close, the terminal identifies open and short circuit signals and feeds the state back to the upper computer software, and the upper computer software can judge the correctness of state identification;
the auxiliary terminal communication unit is used for connecting the terminal remote control terminal with the remote signaling terminal, when the output state of the remote control terminal changes, the remote signaling is shifted, and the PC terminal upper computer software detects whether the shift of the terminal is normal or not by detecting the shift state of the remote signaling;
the current analog output unit provides three-phase current output, so that the current metering accuracy and alarm detection of the load management terminal can be tested;
the pulse metering unit provides a metering function of outputting pulses to the load management terminal, and the metering function comprises positive, negative and second pulses;
the virtual meter communication unit is used for simulating an actual ammeter reply message, and when the load management terminal sends out a meter reading message through RS485, the virtual meter communication unit receives the message and gives a reply.
The specific working flow of the testing method of the device is as follows:
fig. 2 shows a front view of a load management terminal testing device, the testing device comprises an insulating table 1, a terminal epitope 2, a device power-on control button 3, a crimping unit 4, a testing device 232 communication port 5, a testing device infrared communication port 6, a testing device and terminal ethernet communication port 7 and a testing device and PC ethernet communication port 8.
Placing the load management terminal at an epitope position, compacting the compression joint unit, and confirming that the terminal of the compression joint unit is in normal physical connection with the terminal auxiliary terminal, wherein the terminal turns 1, 2, 3 and 4 are respectively in alignment connection with the remote signaling 1, 2, 3 and 4;
connecting a terminal RS232 and an infrared port with a communication port and an infrared communication port of the testing device 232 through connecting wires, and connecting a terminal Ethernet port with an Ethernet communication port of the testing device through an Ethernet cable;
connecting the testing device with a PC end upper computer through an Ethernet;
opening a device power-on control button to supply power to the testing device;
the PC terminal upper computer software sends a power-on command, the power-on control unit controls the epitope to be electrified, and the terminal is electrified and started at the moment;
issuing control parameters and an electric energy meter file to the terminal through upper computer software;
the method comprises the steps that an ammeter reading command is issued to a terminal through upper computer software, an Ethernet communication unit sequentially forwards messages to a load management terminal RS232, RS485-3 and an infrared port, the terminal sends meter reading messages at the 485 port after receiving the messages, a virtual meter communication unit replies the meter reading messages, the terminal returns meter reading reply data to the upper computer software, and the software respectively judges whether the functions of the RS232, the RS485-3 and the infrared port are qualified by judging whether the messages are consistent with the reply data or not;
carrying out data point reading through a terminal screen button, checking screen display return data, and verifying the correctness of a reading function;
the method comprises the steps that a terminal power control starting command is sent through upper computer software, the terminal enters a control state according to power data returned by a reading virtual table, the virtual table reply data is kept unchanged, the terminal trips in a round 1 at first, at the moment, remote signaling 1 generates deflection, and the upper computer software judges whether a control function is qualified or not through reading the remote signaling state of the terminal;
the upper computer software controls the on-off state of the test state relay control unit and the current output by the current analog output unit, so that states such as open circuit, short circuit and the like are caused at the tail of the terminal, the terminal can recognize the states and generate an alarm event, and the upper computer software reads the state bit and the alarm content of the terminal to judge whether the alarm function is qualified or not;
the upper computer software controls the current analog output unit of the testing device to output current, the pulse metering unit meters the terminal to output a pulse power value, and the upper computer verifies whether the pulse output function is correct by reading the pulse metering unit power value and comparing the pulse metering unit power value with the terminal power;
according to the load management terminal testing device and the load management terminal testing method, before the device is tested, the load management terminal is only required to be pressed onto the pressing unit, and wiring of voltage, current, remote control, remote signaling, pulse and 485 ports is not needed to be completed manually, so that time and labor are saved; only the power supply of the equipment is controlled through a switch, so that the operation is safe and easy; the virtual meter communication unit can reply the meter reading message sent by the load management terminal through the RS485, is used for simulating the actual meter reading reply on site, is not connected through an actual electric meter, reduces manpower, material resources and resource occupation, and is more comprehensive in test. The function test result can be displayed through the upper computer software interface, and is convenient and visual. The automatic acquisition and detection of the test result omits the process of manually issuing instructions and manually checking, and improves the test efficiency.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The test method for the load management terminal test device is characterized by comprising eight parts, namely a crimping unit, a power supply control unit, an Ethernet communication unit, a relay control unit, an auxiliary terminal communication unit, a current analog output unit, a pulse metering unit and a virtual table communication unit, wherein the crimping unit provides voltage and current binding posts of a load management terminal and a binding post row of an auxiliary terminal of the load management terminal, and is used for terminal power-on and auxiliary terminal connection, and the test method comprises the following steps:
s1, placing a terminal at an epitope position, compacting the crimping unit, and confirming that the terminal of the crimping unit is normally connected with an auxiliary terminal of the terminal physically, wherein the terminal is in alignment connection with remote signaling 1, remote signaling 2, remote signaling 3 and remote signaling 4 respectively in turn 1, turn 2, turn 3 and turn 4; connecting a terminal RS232 and an infrared port with a communication port and an infrared communication port of the testing device 232 through connecting wires, and connecting a terminal Ethernet port with an Ethernet communication port of the testing device through an Ethernet cable;
s2, the testing device is connected with the PC end upper computer through the Ethernet communication unit;
s3, the upper computer software sends a power-on command, the power-on command controls the epitope to be electrified through the power supply control unit, and the terminal is electrified and started;
s4, the auxiliary terminal communication unit is connected with remote signaling and round number of the load management terminal, and judges the terminal control function;
s5, the upper computer software controls the relay control unit to be opened and closed, and the function of identifying the open and short circuit states of the terminal is verified;
s6, outputting current by a current analog output unit, measuring a terminal output pulse power value by a pulse measuring unit, and verifying the terminal pulse output accuracy; s7, the upper computer software issues a meter reading command to the terminal through the Ethernet communication unit, the Ethernet communication unit sequentially forwards messages generated corresponding to the received meter reading command to the RS232, RS485-3 and infrared ports of the terminal, the terminal sends meter reading messages at the 485 port after receiving the messages, the virtual meter communication unit simulates and generates a reply meter reading message corresponding to the meter reading messages, the terminal returns the received reply meter reading message to the upper computer software, and the upper computer software respectively judges whether the functions of the RS232, the RS485-3 and the infrared ports are qualified by judging whether the received reply meter reading message is consistent with the reply data corresponding to the meter reading command; and carrying out data point reading through a terminal screen button, checking screen display return data, and verifying the correctness of the reading function.
2. The test method for a load management terminal test apparatus according to claim 1, wherein the power supply control unit provides power-off control of the load management terminal.
3. The test method for the load management terminal test device according to claim 1, wherein the ethernet communication unit provides a communication connection between the test device and the PC-side host computer, and verifies the ethernet communication function of the load management terminal.
4. The test method for a load management terminal test apparatus according to claim 1, wherein the relay control unit is configured to control a tail open and short circuit connection of the load management terminal, and verify an open and short circuit recognition function of the load management terminal.
5. The test method for a load management terminal test apparatus according to claim 1, wherein the auxiliary terminal communication unit is configured to connect a remote signaling terminal and a remote control terminal of the load management terminal, and verify a control function of the load management terminal.
6. The test method for the load management terminal test device according to claim 1, wherein the current analog output unit is used for outputting small current, and the PC terminal upper computer tests the metering accuracy and alarm monitoring of the load management terminal by controlling the output of the current.
7. The test method for a load management terminal test apparatus according to claim 1, wherein the pulse metering unit is configured to convert the on-going, on-going and off-going pulses of the load management terminal output into power values, and verify the correctness of the pulse output of the load management terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997062.9A CN115396338B (en) | 2022-08-18 | 2022-08-18 | Load management terminal testing device and testing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210997062.9A CN115396338B (en) | 2022-08-18 | 2022-08-18 | Load management terminal testing device and testing method |
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| CN115396338A CN115396338A (en) | 2022-11-25 |
| CN115396338B true CN115396338B (en) | 2024-04-05 |
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| CN115396338A (en) | 2022-11-25 |
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