CN114646349B - Power distribution network secondary fuses and equips test system - Google Patents

Power distribution network secondary fuses and equips test system Download PDF

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Publication number
CN114646349B
CN114646349B CN202210278820.1A CN202210278820A CN114646349B CN 114646349 B CN114646349 B CN 114646349B CN 202210278820 A CN202210278820 A CN 202210278820A CN 114646349 B CN114646349 B CN 114646349B
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test
unit
module
sensor
testing
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CN114646349A (en
Inventor
袁智勇
徐全
徐启源
雷金勇
林心昊
马楠
喻磊
邓浩
刘胤良
黄湛华
史训涛
胡冉
白浩
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CSG Electric Power Research Institute
Shenzhen Power Supply Bureau Co Ltd
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CSG Electric Power Research Institute
Shenzhen Power Supply Bureau Co Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/04Programme control other than numerical control, i.e. in sequence controllers or logic controllers

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The invention relates to the technical field of power distribution testing, and discloses a power distribution network secondary fusion equipment testing system. The system comprises a control module, a calibration module, an intelligent gateway test module, a sensor test module and a terminal test module; the intelligent gateway test module is used for generating a test case according to the control instruction of the control module so as to test the intelligent gateway to be tested; the sensor testing module is used for testing a sensor to be tested of the secondary fusion equipment of the power distribution network; the terminal test module is used for detecting the sampling precision and the remote signaling resolution of a terminal to be tested of the secondary fusion equipment of the power distribution network; the calibration module is used for acquiring the composite error amount of the circuit in the secondary fusion equipment of the power distribution network before the control module sends out the control instruction, so that each test module calibrates corresponding test data according to the composite error amount. The invention can simultaneously and rapidly and accurately detect different devices in the secondary fusion equipment of the power distribution network.

Description

Power distribution network secondary fuses and equips test system
Technical Field
The invention relates to the technical field of power distribution testing, in particular to a power distribution network secondary fusion equipment testing system.
Background
At present, primary equipment and secondary equipment in an electric power system are still in a relatively separated state. In the related art, a secondary integration device of the power distribution network is formed according to a secondary integration technology, namely, primary equipment and secondary equipment are integrated, so that the primary equipment contains part of secondary equipment intelligent units.
The power distribution network secondary fusion equipment is tested, and is an important measure for guaranteeing the safe operation of the power distribution network. Because the equipment quantity that distribution network secondary fuses equipment contains is more, adopts current single test equipment to test distribution network secondary to fuse equipment, needs repeated the going on many times, and test efficiency is lower, and the test accuracy is not high.
Disclosure of Invention
The invention provides a testing system for secondary fusion equipment of a power distribution network, which solves the technical problem of how to test different devices of the secondary fusion equipment of the power distribution network rapidly and accurately.
The invention provides a power distribution network secondary fusion equipment test system which comprises a control module, a calibration module, an intelligent gateway test module, a sensor test module and a terminal test module, wherein the control module is used for controlling the power distribution network secondary fusion equipment; the calibration module, the intelligent gateway test module, the sensor test module and the terminal test module are all connected with the control module;
The intelligent gateway test module is used for generating a corresponding test case according to the control instruction of the control module, and testing the intelligent gateway to be tested of the secondary fusion equipment of the power distribution network based on the test case;
The sensor testing module is used for testing the to-be-tested sensor of the secondary fusion equipment of the power distribution network according to the control instruction of the control module, and performing fault detection on the to-be-tested sensor and the secondary fusion equipment of the power distribution network according to the sampling value and/or the sampling precision of the to-be-tested sensor;
the terminal test module is used for applying corresponding test signals to a terminal to be tested of the secondary fusion equipment of the power distribution network according to the control instruction of the control module so as to detect the sampling precision and the remote signaling resolution of the terminal to be tested;
the calibration module is used for acquiring the composite error amount of a circuit in secondary fusion equipment of the power distribution network and transmitting the composite error amount to the control module before the control module sends a control instruction, so that the control module transmits the composite error amount to the intelligent gateway test module, the sensor test module and the terminal test module; the composite error amount includes an error amount caused by parasitic inductance and/or parasitic capacitance;
The intelligent gateway test module, the sensor test module and the terminal test module are also used for calibrating test data in the test process based on the composite error amount.
According to one implementation manner of the invention, the intelligent gateway test module comprises a test master station unit, a switching control unit and a plurality of single-group test units;
The input end of the switching control unit is connected with the output end of the test master station unit, and the output end of the switching control unit is connected with each single group of test units;
the test master station unit is used for generating corresponding test cases and test instructions according to the control instructions of the control module, wherein the test instructions comprise the identifications of the single-group test units;
The switching control unit is used for sending the test cases to a single group of test units corresponding to the identification according to the test instruction;
And the single-group test unit is used for testing the corresponding intelligent gateway to be tested according to the test case.
According to one implementation of the present invention, the single set of test units includes a power source subunit and a number of signal injection subunits;
The power source subunit is used for inputting voltage signals and current signals to the corresponding intelligent gateway to be tested so as to test the electrical performance of the intelligent gateway to be tested based on the test case;
The signal injection subunit is used for inputting various protocol signals to the corresponding intelligent gateway to be tested so as to test the protocol access capability and parallel receiving capability of the intelligent gateway to be tested.
According to one implementation of the invention, the sensor test module comprises an environment test unit, an electrical test unit and a monitoring test unit;
The environment testing unit is used for testing environment sensors, and the environment sensors comprise a temperature sensor, a humidity sensor and/or an air pressure sensor;
the electrical testing unit is used for testing electrical sensors, and the electrical sensors comprise a voltage sensor, a current sensor, a resistance sensor and/or a power sensor;
The monitoring test unit is used for testing a monitoring sensor, and the monitoring sensor comprises an image sensor, a sound sensor and/or a photoelectric sensor.
According to one implementation of the present invention, the sensor test module further includes a fault location unit; the fault positioning unit is electrically connected with the environment test unit, the electrical test unit and the monitoring test unit respectively;
the fault positioning unit comprises a transmitting radius setting subunit, a signal receiving subunit, a region dividing subunit and a comparison determining subunit;
The emission radius setting subunit is used for setting the signal emission radii of the environment test unit, the electrical test unit and the monitoring test unit so that the environment test unit, the electrical test unit and the monitoring test unit emit fault signals according to the set signal emission radii when detecting faults;
The signal receiving subunit is used for receiving fault signals sent by the environment test unit, the electrical test unit and the monitoring test unit;
the region dividing subunit is used for dividing a fault region according to at least two fault signals received by the signal receiving subunit;
The comparison and determination unit is used for checking the divided fault areas and determining the fault positions according to the signal strength.
According to one implementation of the invention, the system further comprises an energy charging module;
The energy charging module is connected with the control module and used for storing energy in the testing process.
According to one implementation manner of the invention, the charging module comprises an energy storage unit, an electric quantity judging unit, an environment judging unit and a switch unit;
One end of the switch unit is connected with the electric quantity judging unit and the environment judging unit, and the other end of the switch unit is connected with the energy storage unit;
the environment judging unit is connected with the electrical testing unit and is used for sending a first signal to the switch unit when the electrical testing unit does not send out a fault signal;
The electric quantity judging unit is used for sending a second signal to the switch unit when the electric quantity of the energy storage unit is lower than a preset threshold value;
The switch unit is used for being conducted after receiving the first signal and the second signal, so that the energy storage unit stores energy in the testing process.
According to one implementation mode of the invention, the terminal test module comprises a measurement and control software unit, a test bench control unit, a test bench power source unit and a test switch unit;
The test board control unit is electrically connected with the measurement and control software unit, the test board power source unit and the test switch unit;
the measurement and control software unit is used for generating corresponding test instructions according to the control instructions of the control module;
the test bench control unit is used for decomposing the test instruction and sending the test instruction to the test bench power source unit and the test switch unit;
The test board power source unit is used for outputting a current signal and a voltage signal to a terminal to be tested according to the received decomposition instruction;
The test switch unit is used for outputting a switch signal to a terminal to be tested according to the received decomposition instruction;
the measurement and control software unit is also connected with the terminal to be tested and used for acquiring and storing real-time data of the terminal to be tested in the test process.
According to one implementation of the invention, the terminal test module further comprises a wave recorder and a multifunctional table;
The multifunctional meter is electrically connected with the measurement and control software unit and the terminal to be measured, so that the measurement and control software unit takes data acquired by the multifunctional meter as a comparison reference;
The wave recorder is electrically connected with the measurement and control software unit and the terminal to be measured so as to record waves for the terminal to be measured.
From the above technical scheme, the invention has the following advantages:
The system comprises a control module, a calibration module, an intelligent gateway test module, a sensor test module and a terminal test module; the intelligent gateway test module is used for generating a corresponding test case according to a control instruction of the control module, and testing the intelligent gateway to be tested of the secondary fusion equipment of the power distribution network based on the test case; the sensor testing module is used for testing the to-be-tested sensor of the secondary fusion equipment of the power distribution network according to the control instruction of the control module, and performing fault detection on the to-be-tested sensor and the secondary fusion equipment of the power distribution network according to the magnitude and/or the sampling precision of the sampling value of the to-be-tested sensor; the terminal test module is used for applying corresponding test signals to a terminal to be tested of secondary fusion equipment of the power distribution network so as to detect the sampling precision and remote signaling resolution of the terminal to be tested; the calibration module is used for acquiring the composite error amount of the circuit in the secondary fusion equipment of the power distribution network before the control module sends a control instruction, so that the intelligent gateway test module, the sensor test module and the terminal test module calibrate the test data in the test process according to the composite error amount; according to the invention, by arranging the intelligent gateway test module, the sensor test module and the terminal test module, three detection functions are integrated together, different devices in the secondary integration equipment of the power distribution network can be rapidly detected at the same time, the detection efficiency is greatly improved, and the detection process is calibrated through the calibration module, so that the accuracy of the detection result can be improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic block diagram of a power distribution network secondary fusion equipment testing system according to an alternative embodiment of the present invention;
FIG. 2 is a schematic block diagram of an intelligent gateway test module according to an alternative embodiment of the present invention;
fig. 3 is a schematic diagram of an intelligent gateway test module according to an alternative embodiment of the present invention;
FIG. 4 is a functional block diagram of a sensor testing module provided in an alternative embodiment of the present invention;
FIG. 5 is a functional block diagram of a fault location unit provided in an alternative embodiment of the present invention;
FIG. 6 is a functional block diagram of a charging module according to an alternative embodiment of the present invention;
FIG. 7 is a schematic diagram of a terminal test module according to an alternative embodiment of the present invention;
fig. 8 is a schematic diagram of a method for detecting a terminal to be detected by using a recorder and a multifunctional meter according to an alternative embodiment of the present invention.
Reference numerals:
10-an intelligent gateway test module; 20-a sensor test module; 30-a terminal test module; 40-a control module; a 50-calibration module; 60-a charging module; 101-a test master unit; 102-a switching control unit; 103-single set of test units; 1031-a power source subunit; 1032—a signal injection subunit; 201-an environment test unit; 202-an electrical test unit; 203-monitoring the test unit; 204-a fault location unit; 2041—an emission radius setting subunit; 2042-a signal receiving subunit; 2043-region dividing subunits; 2044-a comparison determination subunit; 301-a measurement and control software unit; 302-a test stand control unit; 303-a test stand power source unit; 304-a test switching unit; 305-a recorder; 306-a multi-function table; 601-an energy storage unit; 602-an electric quantity judging unit; 603-an environment judgment unit; 604-switching units.
Detailed Description
The embodiment of the invention provides a testing system for secondary fusion equipment of a power distribution network, which is used for solving the technical problem of how to test different devices of the secondary fusion equipment of the power distribution network rapidly and accurately.
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a power distribution network secondary fusion equipment testing system.
Referring to fig. 1, fig. 1 shows a schematic block diagram of a power distribution network secondary fusion equipment testing system according to an embodiment of the present invention.
The embodiment of the invention provides a power distribution network secondary fusion equipment testing system which comprises an intelligent gateway testing module 10, a sensor testing module 20, a terminal testing module 30, a control module 40 and a calibration module 50; the calibration module 50, the intelligent gateway test module 10, the sensor test module 20 and the terminal test module 30 are all connected with the control module 40.
The intelligent gateway test module 10 is configured to generate a corresponding test case according to a control instruction of the control module 40, and test an intelligent gateway to be tested of the secondary fusion device of the power distribution network based on the test case;
the sensor testing module 20 is configured to test a sensor to be tested of the secondary integration equipment of the power distribution network according to a control instruction of the control module 40, and perform fault detection on the sensor to be tested and the secondary integration equipment of the power distribution network according to a sampling value and/or sampling precision of the sensor to be tested;
The terminal test module 30 is configured to apply a corresponding test signal to a terminal to be tested of a secondary integration device of the power distribution network according to a control instruction of the control module 40, so as to detect sampling precision and remote signaling resolution of the terminal to be tested;
The calibration module 50 is configured to obtain a composite error amount of a circuit in a secondary convergence device of the power distribution network and send the composite error amount to the control module 40 before the control module 40 sends a control instruction, so that the control module 40 sends the composite error amount to the intelligent gateway test module 10, the sensor test module 20 and the terminal test module 30; the composite error amount includes an error amount caused by parasitic inductance and/or parasitic capacitance;
The intelligent gateway test module 10, the sensor test module 20 and the terminal test module 30 are further configured to calibrate test data in a test process based on the composite error amount.
It should be noted that, since the detection process of the parasitic capacitance and the parasitic inductance in the circuit is the content of the prior art, the embodiments of the present invention do not relate to an improvement of the detection process of the parasitic capacitance and the parasitic inductance, and are not described herein.
According to the embodiment of the invention, the intelligent gateway in the secondary fusion equipment of the power distribution network is detected through the intelligent gateway test module 10, the sensor in the secondary fusion equipment of the power distribution network is detected through the sensor test module 20, the terminal in the secondary fusion equipment of the power distribution network is detected through the terminal test module 30, and three detection functions are integrated together, so that different devices can be rapidly detected at the same time, the detection efficiency is greatly improved, and the detection process of each module can be calibrated through the calibration module 50, so that the accuracy of the detection result can be effectively improved.
In one implementation manner, as shown in fig. 2, the intelligent gateway test module 10 includes a test master station unit 101, a switching control unit 102, and a plurality of single-group test units 103;
The input end of the switching control unit 102 is connected with the output end of the test master station unit 101, and the output end of the switching control unit 102 is connected with each single group of test units 103;
the test master station unit 101 is configured to generate a corresponding test case and a test instruction according to a control instruction of the control module 40, where the test instruction includes an identifier of a single group of test units 103;
The switching control unit 102 is configured to send the test case to a single group of test units 103 corresponding to the identifier according to the test instruction;
the single-group testing unit 103 is configured to test the corresponding intelligent gateway to be tested according to the test case.
It should be noted that although fig. 2 shows that the intelligent gateway test module 10 includes two single-group test units 103, in other embodiments, other numbers of single-group test units 103 may be provided, and the specific number of single-group test units 103 may be determined according to practical situations.
According to the embodiment of the invention, the test master station unit 101 generates the test cases required to be used for testing and inputs the test cases into the single-group test units 103 for testing, so that not only can the test cases be freely selected, but also a plurality of single-group test units 103 are combined for use through the switching control unit 102, and the intelligent gateway can be subjected to batch and large-scale test while the test cases are shared, thereby effectively improving the test efficiency.
In one implementation, the single set of test units 103 includes a power source subunit 1031 and a number of signal injection subunits 1032;
The power source subunit 1031 is configured to input a voltage signal and a current signal to a corresponding intelligent gateway to be tested, so as to test the electrical performance of the intelligent gateway to be tested based on the test case;
the signal injection subunit 1032 is configured to input various protocol signals to the corresponding intelligent gateway to be tested, so as to test the protocol access capability and parallel receiving capability of the intelligent gateway to be tested.
In the process of using the intelligent gateway test module 10 for detection, as shown in fig. 3, a test case, that is, a test case, which needs to be used, is edited and generated by the test master unit 101, and a corresponding test instruction is sent to the power source subunit 1031, and when the power source subunit 1031 receives the test instruction, voltage and current signals are input to the corresponding intelligent gateway to be tested, so as to test the electrical functions and performances of the intelligent gateway to be tested.
Meanwhile, after the test master station unit 101 sends an instruction to the signal injection subunit 1032, the signal injection subunit 1032 inputs a protocol signal to the intelligent gateway to be tested through various protocols, so as to test the protocol access capability of the intelligent gateway.
Meanwhile, the signal injection subunit 1032 further has concurrency capability, and can send multiple groups of signal data to the intelligent gateway at the same time, so as to detect the parallel receiving capability of the intelligent gateway.
Specifically, during detection, according to the number of intelligent gateways to be detected, the test master station unit 101 controls the switching control unit 102 to select a corresponding single group of test units 103 for testing, the plurality of power source subunits 1031 can be parallel at the same time, the test master station unit 101 controls and manages the power source subunits 1031, and each power source subunit 1031 can support 8 intelligent gateways to be tested in parallel at most. The test content of each intelligent gateway is identical to that of a single intelligent gateway, so that the large-scale test of the intelligent gateway is realized.
In one implementation, as shown in fig. 4, the sensor test module 20 includes an environmental test unit 201, an electrical test unit 202, and a monitoring test unit 203;
The environment testing unit 201 is used for testing the environment sensor;
the electrical testing unit 202 is used for testing the electrical sensor;
the monitoring test unit 203 is configured to test a monitoring sensor.
The environment sensor comprises at least one of a temperature sensor, a humidity sensor and a gas pressure sensor, the electrical sensor comprises at least one of a voltage sensor, a current sensor, a resistance sensor and a power sensor, and the monitoring sensor comprises at least one of an image sensor, a sound sensor and a photoelectric sensor.
Further, the sensor test module 20 further includes a fault location unit 204; the fault locating unit 204 is electrically connected to the environment testing unit 201, the electrical testing unit 202 and the monitoring testing unit 203, respectively.
In the process of detecting the sensor of the secondary fusion equipment, the environment detection, the electrical detection and the monitoring detection are respectively carried out by the environment test unit 201, the electrical test unit 202 and the monitoring test unit 203, so that the external environment, the electrical equipment and the operation environment of the corresponding equipment can be acquired in time. When the sensor testing module 20 detects that the secondary fusion equipment of the power distribution network or the sensor fails, the fault positioning unit 204 rapidly positions the position where the fault is sent, so that the fault position can be positioned in time, the timely maintenance of the secondary fusion equipment of the power distribution network is convenient to realize, and larger loss is avoided.
As shown in fig. 5, the fault location unit 204 includes a transmission radius setting subunit 2041, a signal receiving subunit 2042, a region dividing subunit 2043, and a comparison determination subunit 2044;
The emission radius setting subunit 2041 is configured to set signal emission radii of the environmental test unit 201, the electrical test unit 202, and the monitor test unit 203, so that the environmental test unit 201, the electrical test unit 202, and the monitor test unit 203 emit fault signals at the set signal emission radii when a fault is detected;
the signal receiving subunit 2042 is configured to receive fault signals sent by the environmental test unit 201, the electrical test unit 202, and the monitoring test unit 203;
The area dividing subunit 2043 is configured to divide a fault area according to at least two fault signals received by the signal receiving subunit 2042;
The comparison and determination unit is used for checking the divided fault areas and determining the fault positions according to the signal strength.
As an embodiment, the comparison and determination unit may perform the investigation of the divided fault area according to the dichotomy, or may use other existing fault area investigation methods. The embodiments of the present invention are not limited thereto.
Specifically, during the detection process, the emission radius setting subunit 2041 sets signal emission radii for the environmental test unit 201, the electrical test unit 202, and the monitoring test unit 203, respectively, after detecting that a fault occurs in the environmental test unit 201, the electrical test unit 202, and the monitoring test unit 203, the sensors at corresponding positions send fault signals, and meanwhile, the signal receiving subunit 2042 receives the fault signals sent by the sensors, and locates the area of the fault signals. Assuming that the positions where the faults occur are a and B respectively, the connection line between the a and B is used as the length, the tracks formed when the circle where the point a is located is moved to the circle where the point B is located are connected to form a strip-shaped region, then the region dividing subunit 2043 divides the strip-shaped region into two fault regions in a halving mode, the comparison determining unit detects the two fault regions respectively, after determining that the signal intensity of one fault region is stronger, the region dividing subunit 2043 divides the fault region into two new fault regions, the comparison determining unit detects the two new fault regions again according to the signal intensity until the area of the finally remaining fault region is smaller than the area of the circle with the radius being the preset radius, and then the positions where the signal intensity is the same as the fault signal intensity in all fault regions are determined, so that all fault positions can be obtained, the accurate positioning of the fault positions is realized, and the accuracy of the detection result is improved.
In one implementation, the system further includes a charging module 60;
The charging module 60 is connected to the control module 40 for storing energy during the test.
Conventional test equipment requires self-powered equipment and cannot be used in certain situations. According to the embodiment of the invention, the energy charging module 60 is arranged, the energy charging module 60 automatically charges energy in the detection process, and the energy storage unit 601 supplies power for other modules, so that a power supply is not required to be carried independently, and the detection and the use under different scenes can be satisfied.
In one implementation, as shown in fig. 6, the charging module 60 includes an energy storage unit 601, an electric quantity judging unit 602, an environment judging unit 603, and a switching unit 604;
one end of the switch unit 604 is connected with the electric quantity judging unit 602 and the environment judging unit 603, and the other end of the switch unit 604 is connected with the energy storage unit 601;
the environment judging unit 603 is connected to the electrical testing unit 202, and is configured to send a first signal to the switching unit 604 when the electrical testing unit 202 does not send out a fault signal;
the electric quantity judging unit 602 is configured to send a second signal to the switch unit 604 when the electric quantity of the energy storage unit 601 is lower than a preset threshold;
The switch unit 604 is configured to be turned on after receiving the first signal and the second signal, so that the energy storage unit 601 stores energy during a test process.
Specifically, in the whole system detection process, since the energy charging module 60 is also connected to the detection process, the electric quantity judging unit 602 is connected to the energy storage unit 601 to detect the electric quantity of the energy storage unit 601 at any time, when the electric quantity judging unit 602 detects that the electric quantity of the energy storage unit 601 is lower than the preset threshold, the second signal is output, and the environment judging unit 603 is electrically connected to the electrical testing unit 202 to obtain the detection data of the electrical sensor, when the electrical sensor has no fault, the current electrical environment is stable, the charging can be performed, the first signal is output, and when the switch unit 604 receives the first signal and the second signal, the energy storage unit 601 is fully turned on, so that the energy storage can be performed in the detection process.
According to the embodiment of the invention, the electric quantity judging unit 602 and the environment judging unit 603 are used for carrying out switching limitation on the charging process of the energy storage unit 601, so that the energy storage unit 601 can be protected.
In one implementation manner, as shown in fig. 7, the terminal test module 30 includes a measurement and control software unit 301, a test stand control unit 302, a test stand power source unit 303, and a test switch unit 304;
The test board control unit 302 is electrically connected with the measurement and control software unit 301, the test board power source unit 303 and the test switch unit 304;
The measurement and control software unit 301 is configured to generate a corresponding test instruction according to a control instruction of the control module 40;
the test bench control unit 302 is configured to decompose the test instruction and send the test instruction to the test bench power source unit 303 and the test switch unit 304;
the test bench power source unit 303 is configured to output a current signal and a voltage signal to a terminal to be tested according to the received decomposition command;
the test switch unit 304 is configured to output a switch signal to a terminal to be tested according to the received decomposition instruction;
the measurement and control software unit 301 is further connected to a terminal to be tested, and is configured to acquire and store real-time data of the terminal to be tested in a testing process.
Specifically, in the detection process, the measurement and control software unit 301 is configured to generate a test instruction, send the test instruction to the test board control unit 302, receive the test instruction through the test board control unit 302 and correspondingly decompose the test instruction, then the test board control unit 302 correspondingly sends the decomposed instruction to the test board power source unit 303 and the test switch unit 304, so that the test switch unit 304 outputs a switch signal to a terminal to be tested, and meanwhile, the test board power source unit 303 outputs a current signal and a voltage signal to the terminal to be tested in a controllable amplitude and phase, and starts the test process.
In the embodiment of the invention, a closed-loop automatic test is formed among the measurement and control software unit 301, the test board control unit 302, the test switch unit 304 and the terminal to be tested, the measurement and control software unit 301 issues a start test command in the test process, the whole test process is automatically completed, the test result can be automatically filled, the middle process does not need to be stopped or manually intervened, the test process is greatly optimized, the test configuration and recording workload can be reduced, and the test efficiency is effectively improved.
In one implementation, as shown in fig. 8, the terminal test module 30 further includes a recorder 305 and a multifunction table 306;
The multifunctional table 306 is electrically connected with the measurement and control software unit 301 and the terminal to be measured, so that the measurement and control software unit 301 takes the data collected by the multifunctional table 306 as a comparison reference;
the recorder 305 is electrically connected with the measurement and control software unit 301 and the terminal to be measured, so as to perform a wave recording test on the terminal to be measured.
In the embodiment of the invention, the data collected by the multifunctional table 306 is used as a comparison reference, so that the detection accuracy of the terminal test module 30 can be improved, and the wave recorder 305 is arranged, so that the wave recording test can be conveniently performed.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. The power distribution network secondary fusion equipment testing system is characterized by comprising a control module, a calibration module, an intelligent gateway testing module, a sensor testing module and a terminal testing module; the calibration module, the intelligent gateway test module, the sensor test module and the terminal test module are all connected with the control module;
The intelligent gateway test module is used for generating a corresponding test case according to the control instruction of the control module, and testing the intelligent gateway to be tested of the secondary fusion equipment of the power distribution network based on the test case;
The sensor testing module is used for testing the to-be-tested sensor of the secondary fusion equipment of the power distribution network according to the control instruction of the control module, and performing fault detection on the to-be-tested sensor and the secondary fusion equipment of the power distribution network according to the sampling value and/or the sampling precision of the to-be-tested sensor;
the terminal test module is used for applying corresponding test signals to a terminal to be tested of the secondary fusion equipment of the power distribution network according to the control instruction of the control module so as to detect the sampling precision and the remote signaling resolution of the terminal to be tested;
the calibration module is used for acquiring the composite error amount of a circuit in secondary fusion equipment of the power distribution network and transmitting the composite error amount to the control module before the control module sends a control instruction, so that the control module transmits the composite error amount to the intelligent gateway test module, the sensor test module and the terminal test module; the composite error amount includes an error amount caused by parasitic inductance and/or parasitic capacitance;
the intelligent gateway test module, the sensor test module and the terminal test module are also used for calibrating test data in the test process based on the composite error amount;
the intelligent gateway test module comprises a test master station unit, a switching control unit and a plurality of single-group test units;
The input end of the switching control unit is connected with the output end of the test master station unit, and the output end of the switching control unit is connected with each single group of test units;
the test master station unit is used for generating corresponding test cases and test instructions according to the control instructions of the control module, wherein the test instructions comprise the identifications of the single-group test units;
The switching control unit is used for sending the test cases to a single group of test units corresponding to the identification according to the test instruction;
the single-group test unit is used for testing the corresponding intelligent gateway to be tested according to the test case;
The single-group test unit comprises a power source subunit and a plurality of signal injection subunits;
The power source subunit is used for inputting voltage signals and current signals to the corresponding intelligent gateway to be tested so as to test the electrical performance of the intelligent gateway to be tested based on the test case;
The signal injection subunit is used for inputting various protocol signals to the corresponding intelligent gateway to be tested so as to test the protocol access capability and parallel receiving capability of the intelligent gateway to be tested.
2. The power distribution network secondary fusion equipment test system according to claim 1, wherein the sensor test module comprises an environment test unit, an electrical test unit and a monitoring test unit;
The environment testing unit is used for testing environment sensors, and the environment sensors comprise a temperature sensor, a humidity sensor and/or an air pressure sensor;
the electrical testing unit is used for testing electrical sensors, and the electrical sensors comprise a voltage sensor, a current sensor, a resistance sensor and/or a power sensor;
The monitoring test unit is used for testing a monitoring sensor, and the monitoring sensor comprises an image sensor, a sound sensor and/or a photoelectric sensor.
3. The power distribution network secondary fusion equipment test system of claim 2, wherein the sensor test module further comprises a fault location unit; the fault locating unit is electrically connected with the environment test unit, the electric test unit and the monitoring test unit respectively.
4. The power distribution network secondary fusion equipment test system according to claim 3, wherein the fault location unit comprises a transmission radius setting subunit, a signal receiving subunit, a region dividing subunit and a comparison determining subunit;
The emission radius setting subunit is used for setting the signal emission radii of the environment test unit, the electrical test unit and the monitoring test unit so that the environment test unit, the electrical test unit and the monitoring test unit emit fault signals according to the set signal emission radii when detecting faults;
The signal receiving subunit is used for receiving fault signals sent by the environment test unit, the electrical test unit and the monitoring test unit;
the region dividing subunit is used for dividing a fault region according to at least two fault signals received by the signal receiving subunit;
The comparison and determination subunit is used for checking the divided fault areas and determining the fault positions according to the signal intensity.
5. The power distribution network secondary fusion equipment testing system of claim 2, further comprising an energy charging module;
The energy charging module is connected with the control module and used for storing energy in the testing process.
6. The power distribution network secondary integration equipment test system according to claim 5, wherein the charging module comprises an energy storage unit, an electric quantity judging unit, an environment judging unit and a switch unit;
One end of the switch unit is connected with the electric quantity judging unit and the environment judging unit, and the other end of the switch unit is connected with the energy storage unit;
the environment judging unit is connected with the electrical testing unit and is used for sending a first signal to the switch unit when the electrical testing unit does not send out a fault signal;
The electric quantity judging unit is used for sending a second signal to the switch unit when the electric quantity of the energy storage unit is lower than a preset threshold value;
The switch unit is used for being conducted after receiving the first signal and the second signal, so that the energy storage unit stores energy in the testing process.
7. The power distribution network secondary fusion equipment test system according to any one of claims 1-6, wherein the terminal test module comprises a measurement and control software unit, a test bench control unit, a test bench power source unit and a test switch unit;
The test board control unit is electrically connected with the measurement and control software unit, the test board power source unit and the test switch unit;
the measurement and control software unit is used for generating corresponding test instructions according to the control instructions of the control module;
the test bench control unit is used for decomposing the test instruction and sending the test instruction to the test bench power source unit and the test switch unit;
The test board power source unit is used for outputting a current signal and a voltage signal to a terminal to be tested according to the received decomposition instruction;
The test switch unit is used for outputting a switch signal to a terminal to be tested according to the received decomposition instruction;
the measurement and control software unit is also connected with the terminal to be tested and used for acquiring and storing real-time data of the terminal to be tested in the test process.
8. The power distribution network secondary fusion equipment testing system according to claim 7, wherein the terminal testing module further comprises a wave recorder and a multifunctional table;
The multifunctional meter is electrically connected with the measurement and control software unit and the terminal to be measured, so that the measurement and control software unit takes data acquired by the multifunctional meter as a comparison reference;
The wave recorder is electrically connected with the measurement and control software unit and the terminal to be measured so as to record waves for the terminal to be measured.
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