CN217425663U - Automatic testing device for alternating current measuring equipment - Google Patents

Abstract

The embodiment of the utility model provides an automatic testing arrangement for alternating current measuring equipment is related to, including fast transient pulse crowd test equipment, equipment under test, automatic test equipment and industrial computer, automatic test equipment is including the detection stage body that is used for detecting equipment under test, and the detection stage body includes a plurality of test component that are connected with equipment under test and is used for controlling the control module of test component operation. The automatic testing device for the alternating current measuring equipment controls the operation of the rapid transient pulse group testing equipment and the automatic testing equipment through an industrial personal computer, so that the automatic operation of the rapid transient pulse group testing equipment and the automatic testing equipment is realized; the automatic test equipment is connected with the tested equipment with the corresponding quantity through the plurality of test components, the control module is adopted to control the plurality of test components to automatically test the tested equipment correspondingly connected, the device realizes the quick test of full-automatic, multi-parameter and multi-tested equipment, the manual detection burden is reduced, and the test efficiency is improved.

Description

Automatic testing device for alternating current measuring equipment

Technical Field

The utility model relates to a test technical field especially relates to an automatic testing arrangement for alternating current measuring equipment.

Background

According to general requirements, tests and test conditions for electrical measuring devices (ac), section 11: measurement apparatus (GB/T17215.211-2021)9.3.6 requires that fast transient burst testing requires the error of the instrument under test (EUT) to be detected during the test. The traditional test method is to connect a single tested instrument with fast transient pulse group test equipment and a standard electric energy calibrating device. One complete test relates to a plurality of ports, and wiring and test parameters need to be adjusted one by one; and after the test is finished, the connecting wire is removed. And when a plurality of tested instruments need to be detected, the steps are circularly carried out. Therefore, the traditional test method has the defects of long wire disconnecting and connecting time, large accessory loss, low automation degree and the like. Secondly, in the test process, the error change of the tested instrument needs to be monitored manually, the rapid transient pulse group test equipment and the standard electric energy calibration device are operated manually to start and stop respectively, the test progress is controlled manually, test data are led out one by one and processed, and the labor cost is further increased.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an automatic testing arrangement for alternating current measuring equipment for it is experimental to carry out fast transient pulse crowd to the instrument tested now to solve, has extravagant a large amount of human costs, the technical problem of inefficiency.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:

the utility model provides an automatic testing arrangement for alternating current measuring equipment, including fast transient pulse crowd test equipment, with equipment under test that fast transient pulse crowd test equipment connects, with automatic test equipment that equipment under test is connected and be used for controlling fast transient pulse crowd test equipment with the industrial computer of automatic test equipment operation, automatic test equipment is including the detection stage body that is used for detecting equipment under test, the detection stage body includes a plurality of test components who are connected with equipment under test and is used for controlling the control module of test components operation.

Preferably, the test assembly includes a switch element connected with the control module and at least 6 switch ports connected with the switch element, each of the switch ports being connected with the device under test.

Preferably, each switch port is connected with the device under test through a test fixing frame, connection terminals for connecting the switch ports with the device under test are arranged on the test fixing frame, and the number of the connection terminals corresponds to the number of the switch ports.

Preferably, the connection terminal is a pin or a flexible board connection terminal.

Preferably, the switching element is a relay.

Preferentially, the 6 switch ports are respectively a power switch port, a current transformer switch port, an HLV auxiliary power switch port, an HLV signal switch port, an ELV auxiliary power switch port and an ELV signal switch port.

Preferably, the automatic test equipment comprises a filter network module connected with the detection table body and a power supply module connected with the filter network module.

According to the technical solution provided by the utility model, the embodiment of the utility model has the following advantage: the automatic testing device for the alternating current measuring equipment comprises rapid transient pulse group testing equipment, tested equipment connected with the rapid transient pulse group testing equipment, automatic testing equipment connected with the tested equipment and an industrial personal computer used for controlling the rapid transient pulse group testing equipment and the automatic testing equipment to operate, wherein the automatic testing equipment comprises a detecting table body used for detecting the tested equipment, and the detecting table body comprises a plurality of testing components connected with the tested equipment and a control module used for controlling the testing components to operate. The automatic testing device for the alternating current measuring equipment controls the operation of the rapid transient pulse group testing equipment and the automatic testing equipment through an industrial personal computer, so that the automatic operation of the rapid transient pulse group testing equipment and the automatic testing equipment is realized; the automatic test equipment is connected with the tested devices with corresponding quantity through a plurality of test components, the control module is adopted to control the plurality of test components to automatically test the tested devices with corresponding connection, the device realizes the quick test of full-automatic, multi-parameter and multi-tested devices, reduces the manual detection burden, improves the test efficiency, and solves the technical problems of the existing rapid transient pulse group test on the tested instrument, a large amount of labor cost waste and low efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a block diagram of an automatic test apparatus for an AC measurement device according to an embodiment of the present application;

FIG. 2 is a block diagram of an automatic test apparatus for AC measurement equipment according to another embodiment of the present application;

fig. 3 is a block diagram of an automatic test apparatus for an ac measurement device according to another embodiment of the present application.

Detailed Description

In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present application, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

The embodiment of the application provides an automatic testing device for alternating current measuring equipment, which is used for solving the technical problems of waste of a large amount of labor cost and low efficiency existing in the existing rapid transient pulse group test on a tested instrument.

The first embodiment is as follows:

fig. 1 is a block diagram of an automatic test apparatus for an ac measurement device according to an embodiment of the present application.

As shown in fig. 1, the embodiment of the present application provides an automatic test apparatus for an ac measurement device, which includes a fast transient pulse burst test device 10, a device under test 20 connected to the fast transient pulse burst test device 10, an automatic test device 30 connected to the device under test 20, and an industrial personal computer 40 for controlling operations of the fast transient pulse burst test device 10 and the automatic test device 30, where the automatic test device 30 includes a detection stage body 31 for detecting the device under test 20, and the detection stage body 31 includes a plurality of test components 32 connected to the device under test 20 and a control module 33 for controlling operations of the test components 32.

In the embodiment of the present application, the fast transient burst test apparatus 10 is mainly used for providing a test environment for the device under test 20, and the fast transient burst test apparatus 10 is a relatively mature technology in the field, and the detailed structure, components and operation principle of the fast transient burst test apparatus 10 will not be described herein.

It should be noted that the fast transient burst test apparatus 10 includes a pulse generator and a coupling device, and the length of the connection line between the coupling device and the device under test 20 is preferably 1 meter. Coupling is the phenomenon that two or more circuit elements or inputs and outputs of an electrical network have a close fit and interaction, and transfer energy from one side to the other through interaction, and a coupling element is an element that couples between two circuits.

In the embodiment of the present application, the device under test 20 may be an electric meter, or may be an instrument having functions of measuring, displaying, recording, and the like.

In the embodiment of the present application, the industrial personal computer 40 is mainly used for controlling the operations of the fast transient pulse group test equipment 10 and the automatic test equipment 30 according to preset parameters, so as to realize automatic operation. The set parameters include the number of tests of the device under test 20, the test sequence of the device under test connected to the test component 32, the time interval of the test, the start time and the end time of the test, and the like.

It should be noted that the industrial personal computer 40 is mainly used for industrial automation control, and mainly utilizes the combination of electronics, electricity, machinery and software to realize the automatic operation of the fast transient pulse group testing device 10 and the automatic testing device 30 to test the device under test 20. The industrial personal computer 40 also uses computer technology, microelectronic technology and electrical means to make the fast transient pulse group test equipment 10 and the automatic test equipment 30 more automatic, efficient and accurate in testing the tested identification 20, and has controllability and visibility. In this embodiment, this an automatic testing arrangement for alternating current measuring equipment can programme-controlled fast transient pulse group test equipment 10 and automatic check out test set 30 through industrial computer 40, reduces artifical start-stop equipment, improves experimental security.

In the embodiment of the present application, the automatic test equipment 30 is mainly used for performing an error test on the device under test 20. The detection table body 31 is mainly connected with the tested device 20 through the test component 32 to realize error testing, and the control module 33 mainly controls the operation of the test component 32 according to an instruction of the industrial personal computer 40.

It should be noted that a plurality of test components 32 are disposed on the test platform 31, and each test component 32 is connected to one device under test 20. The industrial personal computer 40 controls the operation of the plurality of test components 32 through the control module 33, so that the automatic test equipment 30 can be connected with a plurality of tested devices 20, the tested devices 20 can complete tests in batches, and the test efficiency is improved.

The application provides an automatic testing arrangement for alternating current measuring equipment, including fast transient pulse group test equipment, the equipment under test who is connected with fast transient pulse group test equipment, the automatic test equipment who is connected with equipment under test and be used for controlling the industrial computer of fast transient pulse group test equipment and automatic test equipment operation, automatic test equipment is including the detection stage body that is used for detecting equipment under test, the detection stage body includes a plurality of test component that are connected with equipment under test and is used for controlling the control module that test component moved. The automatic testing device for the alternating current measuring equipment controls the operation of the rapid transient pulse group testing equipment and the automatic testing equipment through an industrial personal computer, so that the automatic operation of the rapid transient pulse group testing equipment and the automatic testing equipment is realized; the automatic test equipment is connected with the tested devices with corresponding quantity through a plurality of test components, the control module is adopted to control the plurality of test components to automatically test the tested devices with corresponding connection, the device realizes the quick test of full-automatic, multi-parameter and multi-tested devices, reduces the manual detection burden, improves the test efficiency, and solves the technical problems of the existing rapid transient pulse group test on the tested instrument, a large amount of labor cost waste and low efficiency.

Fig. 2 is a frame diagram of an automatic testing apparatus for ac measurement equipment according to another embodiment of the present application.

As shown in fig. 2, in one embodiment of the present application, the automatic test equipment 30 includes a filter network module 34 connected to the test stage body 31 and a power supply module 35 connected to the filter network module 34. A standard table 36 is disposed between the filter network module 34 and the power supply module 35.

It should be noted that the detection table body 31, the standard meter 36 and the power module 35 constitute an electric energy meter verification device, which is an existing mature device and is used for detecting errors of the device under test 20. The automatic testing device for the alternating current measuring equipment improves the error accuracy of the automatic testing equipment 30 for testing the tested equipment 20 under the influence of the fast transient pulse group testing equipment 10 through the parameters of the industrial personal computer 40 for setting the testing requirements. The filter network module 34 is also a mature technology in the prior art, and the filter network module 34 is mainly used for isolating interference quantity affecting errors when the electric energy meter verification equipment is used for testing the tested equipment 20, and keeping accuracy of error detection results.

Fig. 3 is a block diagram of an automatic test apparatus for an ac measurement device according to another embodiment of the present application.

As shown in fig. 3, in one embodiment of the present application, the test component 32 includes a switching element 37 connected to the control module 33 and at least 6 switching ports connected to the switching element 37, each of which is connected to the device under test 20. Each switch port is connected with the device under test 20 through a test fixing frame 38, connection terminals for connecting the switch ports with the device under test 20 and pressing fixing members for pressing the device under test 20 are arranged on the test fixing frame 38, and the number of the connection terminals corresponds to the number of the switch ports.

It should be noted that the connection terminal may be a pin or a flexible board connection terminal. The switching element may be a relay, a multiplexer, a multi-way switch, or the like. The 6 switch ports are respectively a power switch port, a current transformer switch port, an HLV auxiliary power switch port, an HLV signal switch port, an ELV auxiliary power switch port and an ELV signal switch port. In the present embodiment, the testing platform 31 fixes the device under test 20 through the test fixing frame 38, and the connection terminals of the test fixing frame 38 may include a plurality of voltage line pins, power line pins and auxiliary circuit pins. The test fixture 38 includes a press fastening member for securing the device under test 20. The control module 33 can be used for switching on one circuit of the test loop of the tested device 20 every time according to the program requirement of the industrial personal computer 40, controlling the specified test circuit to be switched off, and controlling each switch element 37 to be switched on and switched off by adopting the control module 30.

In the embodiment of the application, the automatic testing device for the alternating current measuring equipment rapidly completes the wire dismounting of the tested equipment 20 through the pressing fixing piece and the connecting terminal of the test fixing frame 38, reduces the manual wire dismounting through a screwdriver, and improves the testing efficiency; the application position of the test pulse can be changed conveniently through the control module 33, the switch element 37 and the switch ports, manual replacement of test circuits is reduced, manual repeated setting of test parameters is reduced, the test efficiency and accuracy are improved, and the error rate is reduced.

In the embodiment of the present application, the automatic testing apparatus for an ac measurement device controls the switching element 37 through the control module 33 to implement one-by-one testing on each line of a single device under test 20, and the control module 33 controls the switching element 37 of each testing component 32 to implement powering on a plurality of connected specified devices under test 20, and also to power on different line switching ports of the specified devices under test 20.

In the embodiment of the application, the working principle of the automatic testing device for the alternating current measuring equipment is as follows: the tested devices 20 are installed on the test fixing frame of the test component 32 one by one, and the test loop circuit of each tested device 20 and the automatic test device 30 is kept smooth; selecting serial numbers of the tested equipment 20 and the testing component 32 to be tested, testing parameters of the fast transient pulse group testing equipment 10, a testing loop sequence and the like on the industrial personal computer 40; after the automatic testing device for the alternating current measuring equipment tests the tested equipment 20, the industrial personal computer 40 transmits an instruction to control the module 33 to sequentially control the switch elements in the testing component 32, the automatic testing equipment 30 and the fast transient pulse group testing equipment 30 are started, the fast transient pulse group testing equipment 30 is controlled according to the industrial personal computer 40 to output testing pulses, and meanwhile, the control module 33 controls the switch elements to be connected with corresponding switch ports, so that the tested equipment 20 is tested until all the tested equipment 20 on the automatic testing device for the alternating current measuring equipment completes testing.

The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The storage may be an internal storage unit of the terminal device, such as a hard disk or a memory of the terminal device. The memory may also be an external storage device of the terminal device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like provided on the terminal device. Further, the memory may also include both an internal storage unit of the terminal device and an external storage device. The memory is used for storing computer programs and other programs and data required by the terminal device. The memory may also be used to temporarily store data that has been output or is to be output.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present invention, which are essential or part of the technical solutions contributing to the prior art, or all or part of the technical solutions, can be embodied in the form of a software product stored in a storage medium, and including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. The automatic testing device for the alternating current measuring equipment is characterized by comprising rapid transient pulse group testing equipment, tested equipment connected with the rapid transient pulse group testing equipment, automatic testing equipment connected with the tested equipment and an industrial personal computer used for controlling the rapid transient pulse group testing equipment and the automatic testing equipment to operate, wherein the automatic testing equipment comprises a detecting table body used for detecting the tested equipment, and the detecting table body comprises a plurality of testing components connected with the tested equipment and a control module used for controlling the testing components to operate.

2. The automatic test equipment for ac electrical measurement devices of claim 1 wherein said test assembly includes a switching element connected with said control module and at least 6 switching ports connected with said switching element, each said switching port connected with said device under test.

3. The automatic test device for alternating current measurement equipment according to claim 2, wherein each switch port is connected with the device under test through a test fixture, connection terminals for connecting the switch ports and the device under test are arranged on the test fixture, and the number of the connection terminals corresponds to the number of the switch ports.

4. The automatic test device for alternating current measuring equipment according to claim 3, wherein the connection terminal is a pin or a flexible board connection terminal.

5. The automatic test device for alternating current measuring equipment according to claim 2, characterized in that the switching element is a relay.

6. The automatic test equipment for alternating current measurement devices of claim 2 wherein 6 of the switch ports are a power switch port, a current transformer switch port, an HLV auxiliary power switch port, an HLV signal switch port, an ELV auxiliary power switch port, and an ELV signal switch port, respectively.

7. The automatic test apparatus for alternating current measurement devices of claim 1, wherein the automatic test device comprises a filter network module connected with the detection stage body and a power supply module connected with the filter network module.

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