Guide rail type electric energy meter calibrating device

Abstract

The utility model relates to a guide rail type electric energy meter calibrating device. A to-be-calibrated guide rail type electric energy meter in the device comprises an analog input port group, a first voltage port group, a first current port group and a communication port group. The comprehensive simulators are connected with the analog input port groups in a one-to-one correspondence manner; a second voltage port group of the standard electric energy meter is connected with each first voltage port group; the program control power source comprises a third voltage port group and a third current port group; the third voltage port group is connected with the second voltage port group of the standard electric energy meter; the third current port group is connected with a standard electric energy meter; the electric energy error regulators are connected with the first current port groups in a one-to-one correspondence manner; the electric energy error regulators are connected in series between the second current port group and the third current port group; the processing equipment is respectively connected with each comprehensive simulator and each communication port group, verification of the guide rail type electric energy meter is realized, compatibility verification of various guide rail type electric energy meters can be realized, verification universality is strong, verification functions are diversified, and measurement accuracy is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric meter detection, in particular to a guide rail type electric energy meter calibration device. BACKGROUND

[0002] The electric energy meter can also be called an electric meter or a fire meter. It is an instrument for measuring electric energy. As an important link between the power grid and users, the electric energy meter provides users' electricity data to the power grid and enables users to real-time understand electricity information and power quality. The guide rail type electric energy meter is a new generation of miniature intelligent electric energy meter. It can be used in 380V or 220V terminal lighting systems. It is installed in a guide rail type, has a modular design, and its width matches the miniature circuit breaker, so it can be easily installed in a lighting box. The electric energy meter calibration device is used to calibrate and measure the electric energy meter. The traditional electric energy meter calibration device is mostly for single-phase and three-phase electric energy meters with conventional structures, and cannot detect new guide rail type electric energy meters.

[0003] In the implementation process, the inventors found that at least the following problems exist in the traditional technology: the existing calibration device for the guide rail type electric energy meter has single calibration function, poor calibration versatility, and low measurement accuracy. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a guide rail type electric energy meter calibration device that can calibrate multiple guide rail type electric meters, has strong calibration versatility, diversified calibration functions, and high measurement accuracy, in view of the problems existing in the existing guide rail type electric energy meter calibration device.

[0005] In a first aspect, the present application provides a guide rail type electric energy meter calibration device, comprising:

[0006] A group of guide rail type electric energy meters to be detected, the group of guide rail type electric energy meters to be detected comprising a plurality of guide rail type electric energy meters to be detected; the guide rail type electric energy meter to be detected comprising a group of analog input ports, a group of first voltage ports, a group of first current ports, and a group of communication ports;

[0007] A comprehensive simulation device, the comprehensive simulation device comprising a plurality of comprehensive simulators, each comprehensive simulator being connected to each group of analog input ports in a one-to-one correspondence;

[0008] A standard electric energy meter, the standard electric energy meter comprising a group of second voltage ports and a group of second current ports; the group of second voltage ports being connected to each group of first voltage ports;

[0009] A program-controlled power source, the program-controlled power source comprising a group of third voltage ports and a group of third current ports; the group of third voltage ports being connected to the group of second voltage ports; and the group of third current ports being connected to the standard electric energy meter;

[0010] The power error adjusting device comprises a plurality of power error adjusters, each of which is connected to a first current port group of a corresponding track-type power meter to be tested in a one-to-one manner; and each of the power error adjusters is connected in series between a second current port group and a third current port group.

[0011] The processing device is connected to each of the comprehensive simulators and each of the communication port groups.

[0012] Optionally, the power error adjuster comprises an integrator and a mutual inductor.

[0013] An input port of the integrator is connected to a first side end of the corresponding mutual inductor, and an output port of the integrator is connected to the corresponding first current port group.

[0014] Each of the mutual inductors is connected in series between the second current port group and the third current port group.

[0015] Optionally, the track-type power meter testing device further comprises a photoelectric pulse sampling module, which comprises a plurality of photoelectric pulse samplers, each of which is connected to a corresponding track-type power meter to be tested in a one-to-one manner, and each of the photoelectric pulse samplers is connected to the processing device.

[0016] Optionally, the processing device comprises an RS485 communication module, a CAN communication module and a Bluetooth communication module; and the communication port group comprises an RS485 communication port, a CAN communication port and a Bluetooth communication port.

[0017] Each of the RS485 communication ports is connected to the RS485 communication module; each of the CAN communication ports is connected to the CAN communication module; and each of the Bluetooth communication ports is connected to the Bluetooth communication module.

[0018] Optionally, the comprehensive simulator comprises a simulated Rogowski coil interface, a simulated remote control interface and a simulated load interface.

[0019] The simulated Rogowski coil interface, the simulated remote control interface and the simulated load interface are respectively connected to the corresponding simulated input port group.

[0020] Optionally, the comprehensive simulator further comprises a simulated sensor interface and a simulated power meter interface.

[0021] The simulated sensor interface and the simulated power meter interface are respectively connected to the corresponding simulated input port group.

[0022] Optionally, the simulated load interface comprises a charging pile load interface and a smart lock load interface.

[0023] The charging pile load interface and the smart lock load interface are respectively connected to the corresponding simulated input port group.

[0024] Optionally, the to-be-tested track-type electric energy meter is a to-be-tested single-phase track-type electric energy meter or a to-be-tested three-phase track-type electric energy meter.

[0025] Optionally, the device further comprises a testing platform, the testing platform being provided with a first installation area and a second installation area;

[0026] The group of to-be-tested track-type electric energy meters is installed in the first installation area.

[0027] The comprehensive simulation device, the standard electric energy meter, the program-controlled power source and the processing device are respectively arranged in the second installation area.

[0028] Optionally, the first installation area is provided with a group of track-type electric energy meter sockets; the group of track-type electric energy meter sockets comprises a plurality of track-type electric energy meter sockets.

[0029] Each to-be-tested track-type electric energy meter is plugged into each track-type electric energy meter socket one by one.

[0030] One of the above technical solutions has the following advantages and beneficial effects:

[0031] The track-type electric energy meter testing device described above comprises a group of to-be-tested track-type electric energy meters, a comprehensive simulation device, a standard electric energy meter, a program-controlled power source, an electric energy error adjusting device and a processing device; the group of to-be-tested track-type electric energy meters comprises a plurality of to-be-tested track-type electric energy meters; the to-be-tested track-type electric energy meter comprises a group of simulation input ports, a first voltage port group, a first current port group and a communication port group; the comprehensive simulation device comprises a plurality of comprehensive simulators, each comprehensive simulator being connected to each group of simulation input ports one by one; the standard electric energy meter comprises a second voltage port group and a second current port group; the second voltage port group is connected to each first voltage port group; the program-controlled power source comprises a third voltage port group and a third current port group; the third voltage port group is connected to the second voltage port group; the third current port group is connected to the standard electric energy meter; the electric energy error adjusting device comprises a plurality of electric energy error adjusters, each electric energy error adjuster being connected to the first current port group of each to-be-tested track-type electric energy meter one by one; each electric energy error adjuster is connected in series between the second current port group and the third current port group; the processing device is connected to each comprehensive simulator and each communication port group, thereby realizing the testing of the track-type electric energy meter. The present application can simulate the data interaction with the track-type electric energy meter by arranging the comprehensive simulation device, can correct the electric energy error by arranging the electric energy error adjusting device, and can realize the communication test and the power consumption test of the track-type electric energy meter and other signal tests by arranging the standard electric energy meter, the program-controlled power source and the processing device, thereby being compatible with the testing of various track-type electric meters, having strong testing versatility, diversified testing functions, high measurement accuracy, high automation degree and high testing stability. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1Fig. 1 is a first structural schematic diagram of a guide rail type electric energy meter calibration device in the embodiments of the present application;

[0033] Figure 2 Fig. 2 is a second structural schematic diagram of a guide rail type electric energy meter calibration device in the embodiments of the present application;

[0034] Figure 3 Fig. 3 is a third structural schematic diagram of a guide rail type electric energy meter calibration device in the embodiments of the present application;

[0035] Figure 4 Fig. 4 is a fourth structural schematic diagram of a guide rail type electric energy meter calibration device in the embodiments of the present application.

[0036] Reference signs:

[0037] 10, group of guide rail type electric energy meters to be calibrated; 110, guide rail type electric energy meter to be calibrated; 112, group of analog input ports; 114, group of first voltage ports; 116, group of first current ports; 118, group of communication ports; 122, RS485 communication port; 124, CAN communication port; 126, Bluetooth communication port; 20, comprehensive simulation device; 210, comprehensive simulator; 30, standard electric energy meter; 310, group of second voltage ports; 320, group of second current ports; 40, program-controlled power source; 410, group of third voltage ports; 420, group of third current ports; 50, electric energy error adjustment device; 510, electric energy error adjuster; 512, integrator; 514, mutual inductor; 60, processing device; 610, RS485 communication module; 620, CAN communication module; 630, Bluetooth communication module; 710, photoelectric pulse sampler. DETAILED DESCRIPTION

[0038] In order to enable persons skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should fall within the scope of protection of the present application.

[0039] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above-described accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular sequential or chronological order. It should be understood that the data thus used can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a list of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to such processes, methods, products or devices.

[0040] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a particular orientation, or to be constructed and operated in a particular orientation.

[0041] Also, in addition to indicating the orientation or positional relationship, the above-mentioned partial terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0042] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0043] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The following will be described in detail with reference to the accompanying drawings. Figures 1 to 4 The present application will be described in detail in conjunction with the embodiments.

[0044] In one embodiment, as shown in Figure 1 A guide rail type electric energy meter calibration device is provided, which includes a group of guide rail type electric energy meters to be calibrated 10, a comprehensive simulation device 20, a standard electric energy meter 30, a program-controlled power source 40, an electric energy error adjustment device 50, and a processing device 60.

[0045] The group of to-be-tested track-type electric energy meters 10 includes a plurality of to-be-tested track-type electric energy meters 110; the to-be-tested track-type electric energy meter 110 includes a group of analog input ports 112, a group of first voltage ports 114, a group of first current ports 116, and a group of communication ports 118; the comprehensive analog device 20 includes a plurality of comprehensive analogizers 210, each comprehensive analogizer 210 is connected in one-to-one correspondence with each group of analog input ports 112; the standard electric energy meter 30 includes a group of second voltage ports 310 and a group of second current ports 320; the group of second voltage ports 310 is respectively connected with each group of first voltage ports 114; the program-controlled power source 40 includes a group of third voltage ports 410 and a group of third current ports 420; the group of third voltage ports 410 is connected with the group of second voltage ports 310; the group of third current ports 420 is connected with the standard electric energy meter 30; the electric energy error adjusting device includes a plurality of electric energy error adjusters 510, each electric energy error adjuster 510 is connected in one-to-one correspondence with the group of first current ports 116 of each to-be-tested track-type electric energy meter 110; each electric energy error adjuster 510 is connected in series between the group of second current ports 320 and the group of third current ports 420; the processing device 60 is respectively connected with each comprehensive analogizer 210 and each group of communication ports 118.

[0046] The group of to-be-tested track-type electric energy meters 10 can include a plurality of to-be-tested track-type electric energy meters 110, for example, one to-be-tested track-type electric energy meter 110 can be tested, and a plurality of to-be-tested track-type electric energy meters 110 can also be tested at the same time. The to-be-tested track-type electric energy meter 110 can be a to-be-tested single-phase track-type electric energy meter or a to-be-tested three-phase track-type electric energy meter.

[0047] The to-be-tested track-type electric energy meter 110 includes a group of analog input ports 112, a group of first voltage ports 114, a group of first current ports 116, and a group of communication ports 118, wherein the group of analog input ports 112 can be used to connect the comprehensive analogizer 210, and then the comprehensive analogizer 210 can transmit an analog signal to the to-be-tested track-type electric energy meter 110 through the group of analog input ports 112, and then the to-be-tested track-type electric energy meter 110 and the comprehensive analogizer 210 can interact with each other to test the analog signal.

[0048] The group of first voltage ports 114 can be used to transmit a voltage signal, for example, if the to-be-tested track-type electric energy meter 110 is a single-phase track-type electric energy meter, the group of first voltage ports 114 includes a single-phase voltage port; if the to-be-tested track-type electric energy meter 110 is a three-phase track-type electric energy meter, the group of first voltage ports 114 includes a first-phase voltage port, a second-phase voltage port, and a third-phase voltage port. The group of first current ports 116 can be used to transmit a current signal, and the group of communication ports 118 can be used to transmit a communication signal.

[0049] The comprehensive simulation device 20 can include a plurality of comprehensive simulators 210, the number of comprehensive simulators 210 being the same as the number of the to-be-tested track-type electric energy meters 110, each comprehensive simulator 210 being connected with each simulation input port group 112 in one-to-one correspondence, so that the comprehensive simulator 210 can transmit a simulation signal to the corresponding to-be-tested track-type electric energy meter 110 through the simulation input port group 112, and the to-be-tested track-type electric energy meter 110 can also transmit a feedback signal to the corresponding comprehensive simulator 210 through the simulation input port group 112, so as to realize the simulation data interaction between the comprehensive simulator 210 and the to-be-tested track-type electric energy meter 110, and then realize the simulation signal test on the to-be-tested track-type electric energy meter 110.

[0050] The standard electric energy meter 30 refers to a calibrated electric energy meter. For example, if the to-be-tested track-type electric energy meter 110 is a single-phase track-type electric energy meter, the standard electric energy meter 30 is a calibrated single-phase electric energy meter; if the to-be-tested track-type electric energy meter 110 is a three-phase track-type electric energy meter, the standard electric energy meter 30 is a standard three-phase electric energy meter. The standard electric energy meter 30 includes a second voltage port group 310 and a second current port group 320, each first voltage port group 114 is connected based on the second voltage port group 310, and then the standard three-phase electric energy meter transmits a voltage signal to each to-be-tested track-type electric energy meter 110, so as to realize the voltage loop power consumption test of the track-type electric energy meter.

[0051] The program-controlled power source 40 can be used to transmit a power signal (including a voltage signal and a current signal) to the standard electric energy meter 30. The program-controlled power source 40 includes a third voltage port group 410 and a third current port group 420. The second voltage port group 310 is connected based on the third voltage port group 410, so that the program-controlled power source 40 can transmit a voltage signal to the second voltage port group 310 of the standard electric energy meter 30 through the third voltage port group 410, so as to provide voltage to the standard electric energy meter 30. The standard electric energy meter 30 is connected based on the third current port group 420, so that the program-controlled power source 40 can transmit a current signal to the second current port group 320 of the standard electric energy meter 30 through the third current port group 420, so as to provide current to the standard electric energy meter 30.

[0052] The electric energy error adjustment device 50 can include a plurality of electric energy error adjusters 510, the number of electric energy error adjusters 510 being the same as the number of the to-be-tested track-type electric energy meters 110. The electric energy error adjuster 510 can be used to adjust and correct the electric energy error, so as to realize the accurate test on the power consumption of the to-be-tested track-type electric energy meter.

[0053] The power source 40, the standard electric energy meter 30 and the electric energy error adjuster 510 form a loop based on the electric energy error adjuster 510 being connected in series between the second current port group 320 and the third current port group 420; the electric energy error adjuster 510 and the first current port group 116 of each to-be-tested track-type electric energy meter 110 are connected in one-to-one correspondence, so that the power source 40 provides a current signal to the standard electric energy meter 30, the standard electric energy meter 30 transmits the current signal to each electric energy error adjuster 510, and the current signal is transmitted to the corresponding to-be-tested track-type electric energy meter 110 after being error-corrected by the electric energy error adjuster 510, thereby realizing the electric quantity test of each to-be-tested track-type electric energy meter 110.

[0054] The processing device 60 can be preloaded with track-type electric energy meter calibration software, the processing device 60 is connected to each comprehensive simulator 210 respectively, and the processing device 60 can control the comprehensive simulator 210 to work, so that the comprehensive simulator 210 starts the corresponding simulation function. The processing device 60 can also receive the feedback signal transmitted by the comprehensive simulator 210 and display the received feedback signal, thereby realizing the simulation signal test and monitoring of the to-be-tested track-type electric energy meter 110. The processing device 60 is connected to each communication port group 118 respectively, and the processing device 60 can be connected to the corresponding to-be-tested track-type electric energy meter 110 through the communication port group 118, thereby realizing the communication test of the to-be-tested track-type electric energy meter 110.

[0055] In the above embodiment, the to-be-tested track-type electric energy meter 110 includes an analog input port group 112, a first voltage port group 114, a first current port group 116, and a communication port group 118; each comprehensive simulator 210 is connected in one-to-one correspondence with each analog input port group 112; the standard electric energy meter 30 includes a second voltage port group 310 and a second current port group 320; the second voltage port group 310 is respectively connected with each first voltage port group 114; the program-controlled power source 40 includes a third voltage port group 410 and a third current port group 420; the third voltage port group 410 is connected with the second voltage port group 310; the third current port group 420 is connected with the standard electric energy meter 30; the electric energy error adjusting device includes a plurality of electric energy error adjusters 510, each electric energy error adjuster 510 is connected in one-to-one correspondence with the first current port group 116 of each to-be-tested track-type electric energy meter 110; each electric energy error adjuster 510 is connected in series between the second current port group 320 and the third current port group 420; the processing device 60 is respectively connected with each comprehensive simulator 210 and each communication port group 118, and realizes the calibration of the track-type electric energy meter. Through the setting of the comprehensive simulation device 20, the data interaction with the track-type electric energy meter can be simulated, through the setting of the electric energy error adjusting device 50, the electric energy error can be corrected, through the setting of the standard electric energy meter 30, the program-controlled power source 40 and the processing device 60, the communication test and the power consumption test and other signal tests of the track-type electric energy meter can be realized, a plurality of track-type electric meters can be calibrated, the calibration versatility is strong, the calibration function is diversified, the measurement accuracy is high, the degree of automation is high, and the calibration stability is high.

[0056] In one embodiment, as shown in Figure 2 The electric energy error adjuster 510 includes an integrator 512 and a mutual inductor 514; the input port of the integrator 512 is connected with the first side end of the corresponding mutual inductor 514, and the output port of the integrator 512 is connected with the corresponding first current port group 116; and each mutual inductor 514 is connected in series between the second current port group 320 and the third current port group 420.

[0057] For example, if the to-be-tested track-type electric energy meter 110 is a three-phase track-type electric energy meter, the electric energy error regulator 510 includes three transformers 514, which are referred to as a first-phase transformer 514, a second-phase transformer 514, and a third-phase transformer 514; the first side end of the first-phase transformer 514, the first side end of the second-phase transformer 514, and the first side end of the third-phase transformer 514 are respectively connected to the same integrator 512, the second side end of each first-phase transformer 514 is connected in series between the second current port group 320 and the third current port group 420, the second side end of each second-phase transformer 514 is connected in series between the second current port group 320 and the third current port group 420, and the second side end of each third-phase transformer 514 is connected in series between the second current port group 320 and the third current port group 420, so that the program-controlled power supply 40 provides a current signal to the standard electric energy meter 30, the current signal output by the standard electric energy meter 30 is coupled by the corresponding transformer 514, the coupled current signal is transmitted to the corresponding integrator 512, and the current signal is transmitted to the corresponding to-be-tested track-type electric energy meter 110 after error correction by the integrator 512, so that the electric quantity test of each to-be-tested track-type electric energy meter 110 can be realized.

[0058] In one example, as shown in Figure 3 The track-type electric energy meter testing device further includes a photoelectric pulse sampling module, which includes a plurality of photoelectric pulse samplers 710, each photoelectric pulse sampler 710 is connected to a corresponding to-be-tested track-type electric energy meter 110 in one-to-one correspondence, and each photoelectric pulse sampler 710 is connected to the processing device 60.

[0059] The photoelectric pulse sampling module can include a plurality of photoelectric pulse samplers 710, the number of photoelectric pulse samplers 710 is the same as the number of to-be-tested track-type electric energy meters 110, the photoelectric pulse sampler 710 is connected between the processing device 60 and the corresponding to-be-tested track-type electric energy meter 110, so that the photoelectric pulse sampling module can sample the signal of the corresponding to-be-tested track-type electric energy meter 110, and transmit the sampled signal to the processing device 60 after photoelectric isolation conversion, thereby realizing the isolation between the high-voltage side and the low-voltage side, avoiding the interference of the electric signal of the to-be-tested track-type electric energy meter 110 on the processing device 60 on the low-voltage side, and improving the testing stability and measurement accuracy.

[0060] In one embodiment, as shown in Figure 4As shown, the processing device 60 includes an RS485 communication module 610, a CAN communication module 620, and a Bluetooth communication module 630; the communication port group 118 includes an RS485 communication port 122, a CAN communication port 124, and a Bluetooth communication port 126; each RS485 communication port 122 is connected to the RS485 communication module 610; each CAN communication port 124 is connected to the CAN communication module 620; and each Bluetooth communication port 126 is connected to the Bluetooth communication module 630.

[0061] The RS485 communication module 610 can be used to establish a communication connection with the RS485 communication port 122 of the to-be-tested track-type electric energy meter 110, transmit an RS485 communication signal to the RS485 communication port 122 through the RS485 communication module 610, and realize RS485 communication testing of the to-be-tested track-type electric energy meter 110. The CAN communication module 620 can be used to establish a communication connection with the CAN communication port 124 of the to-be-tested track-type electric energy meter 110, transmit a CAN communication signal to the CAN communication port 124 through the CAN communication module 620, and realize CAN communication testing of the to-be-tested track-type electric energy meter 110. The Bluetooth communication module 630 can be used to establish a communication connection with the Bluetooth communication port 126 of the to-be-tested track-type electric energy meter 110, transmit a Bluetooth communication signal to the Bluetooth communication port 126 through the Bluetooth communication module 630, and realize Bluetooth communication testing of the to-be-tested track-type electric energy meter 110.

[0062] In one embodiment, the comprehensive simulator 210 includes a simulated Rogowski coil interface, a simulated remote control interface, and a simulated load interface; the simulated Rogowski coil interface, the simulated remote control interface, and the simulated load interface are respectively connected to the corresponding simulated input port group 112.

[0063] Based on the simulated Rogowski coil interface of the comprehensive simulator 210, the simulated input port group 112 of the to-be-tested track-type electric energy meter 110 is connected, and thus the program-controlled simulation of various Rogowski coil secondary side currents, online voltage, and other Rogowski coil interface signal testing can be realized. Based on the simulated remote control interface of the comprehensive simulator 210, the simulated input port group 112 of the to-be-tested track-type electric energy meter 110 is connected, and thus the provision of multiple independent remote signaling and remote control interface testing can be realized. Exemplarily, the simulated load interface includes a charging pile load interface and a smart lock load interface; the charging pile load interface and the smart lock load interface are respectively connected to the corresponding simulated input port group 112. Based on the simulated load interface of the comprehensive simulator 210, the simulated input port group 112 of the to-be-tested track-type electric energy meter 110 is connected, and thus the simulation of the data interaction between the charging pile, the smart lock, and the like and the to-be-tested track-type electric energy meter 110 can be realized, so as to realize track-type electric energy meter lock data acquisition, charging pile data acquisition, electric energy meter data acquisition, and Rogowski coil management testing.

[0064] In one example, such as Figure 4 As shown, the integrated simulator 210 also includes an analog sensor interface and an analog energy meter interface; the analog sensor interface and the analog energy meter interface are respectively connected to the corresponding analog input port group 112.

[0065] The integrated simulator 210 connects to the analog input port group 112 of the corresponding rail-mounted energy meter 110 under test via its analog sensor interface. This allows the integrated simulator 210 to simulate various sensors and enable data interaction between the simulated sensors and the rail-mounted energy meter 110.

[0066] In one embodiment, the DIN rail type energy meter calibration device further includes a calibration platform, which is provided with a first installation area and a second installation area; the DIN rail type energy meter group to be tested is installed in the first installation area; and the integrated simulation equipment, standard energy meter, programmable power source and processing equipment are respectively installed in the second installation area.

[0067] The calibration platform can be a calibration bench. The first installation area of ​​the calibration platform is used to install the rail-mounted energy meter group to be tested, and the second installation area of ​​the calibration platform is used to install the integrated simulation equipment, standard energy meter, programmable power source and processing equipment.

[0068] For example, the first installation area is equipped with a rail-mounted energy meter socket group; the rail-mounted energy meter socket group includes several rail-mounted energy meter sockets; each rail-mounted energy meter to be tested is plugged into its corresponding rail-mounted energy meter socket. Therefore, when it is necessary to test the rail-mounted energy meter to be tested, simply plug the meter into its socket to secure it. Then, the integrated simulator is connected to the analog input port group of the rail-mounted energy meter to be tested; the second voltage port group of the standard energy meter is connected to the first voltage port group of the rail-mounted energy meter to be tested; the energy error regulator is connected to the first current port group of the rail-mounted energy meter to be tested; and the processing device is connected to the communication port group of the rail-mounted energy meter to be tested, thus realizing the testing of the rail-mounted energy meter. This application, by setting up a comprehensive simulation device, can simulate data interaction with a rail-mounted energy meter. By setting up an energy error adjustment device, it can correct energy errors. By setting up a standard energy meter, a programmable power source, and processing equipment, it can realize signal testing such as communication testing and power consumption testing of the rail-mounted energy meter. It can be compatible with the verification of various rail-mounted energy meters, has strong verification versatility, diverse verification functions, high measurement accuracy, high degree of automation, and high verification stability.

[0069] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as there is no conflict, any combination of the technical features should be considered within the scope of the present disclosure.

[0070] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, under the premise of not departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A calibration device for a rail-mounted energy meter, characterized in that, include: A rail-mounted energy meter group under test, comprising several rail-mounted energy meters under test; each rail-mounted energy meter under test includes an analog input port group, a first voltage port group, a first current port group, and a communication port group. The integrated simulation device includes several integrated simulators, each of which is connected to a corresponding group of analog input ports. A standard energy meter, the standard energy meter including a second voltage port group and a second current port group; the second voltage port group is respectively connected to each of the first voltage port groups; A programmable power source, the programmable power source including a third voltage port group and a third current port group; the third voltage port group is connected to the second voltage port group; The third current port group is connected to the standard energy meter; An energy error adjustment device includes a plurality of energy error adjusters, each of which is connected in a one-to-one correspondence with the first current port group of each rail-mounted energy meter under test; and each of the energy error adjusters is connected in series between the second current port group and the third current port group. The processing device is connected to each of the integrated simulators and each of the communication port groups.

2. The rail-mounted energy meter calibration device according to claim 1, characterized in that, The power error regulator includes an integrator and a current transformer; The input port of the integrator is connected to the first side of the corresponding current transformer, and the output port of the integrator is connected to the first current port group. Each current transformer is connected in series between the second current port group and the third current port group.

3. The rail-mounted energy meter calibration device according to claim 1, characterized in that, It also includes a photoelectric pulse sampling module, which includes several photoelectric pulse samplers. Each photoelectric pulse sampler is connected to one of the rail-mounted energy meters under test, and each photoelectric pulse sampler is connected to the processing equipment.

4. The rail-mounted energy meter calibration device according to claim 1, characterized in that, The processing device includes an RS485 communication module, a CAN communication module, and a Bluetooth communication module; the communication port group includes an RS485 communication port, a CAN communication port, and a Bluetooth communication port. Each of the RS485 communication ports is connected to the RS485 communication module; each of the CAN communication ports is connected to the CAN communication module; and each of the Bluetooth communication ports is connected to the Bluetooth communication module.

5. The rail-mounted energy meter calibration device according to claim 1, characterized in that, The integrated simulator includes a simulated Rogowski coil interface, a simulated remote control interface, and a simulated load interface; The analog Rogowski coil interface, the analog remote control interface, and the analog load interface are respectively connected to the corresponding analog input port group.

6. The rail-mounted energy meter calibration device according to claim 5, characterized in that, The integrated simulator also includes a simulated sensor interface and a simulated electricity meter interface; The analog sensor interface and the analog energy meter interface are respectively connected to the corresponding analog input port group.

7. The rail-mounted energy meter calibration device according to claim 5, characterized in that, The simulated load interface includes a charging pile load interface and a smart lock load interface; The charging pile load interface and the smart lock load interface are respectively connected to the corresponding analog input port group.

8. The rail-mounted energy meter calibration device according to claim 1, characterized in that, The rail-mounted energy meter to be tested is either a single-phase rail-mounted energy meter or a three-phase rail-mounted energy meter.

9. The rail-mounted energy meter calibration device according to any one of claims 1 to 8, characterized in that, It also includes a testing platform, which is provided with a first installation area and a second installation area; The rail-mounted energy meter set to be tested is installed in the first installation area; The integrated simulation equipment, the standard energy meter, the programmable power source, and the processing equipment are respectively installed in the second installation area.

10. The rail-mounted energy meter calibration device according to claim 9, characterized in that, The first installation area is equipped with a rail-mounted energy meter socket group; the rail-mounted energy meter socket group includes several rail-mounted energy meter sockets. Each of the rail-mounted energy meters to be tested is plugged into the corresponding rail-mounted energy meter socket.

Images