Assessment device for low-voltage apparatus

Abstract

The utility model relates to the technical field of teaching practical training equipment, in particular to a low-voltage electric appliance assessment device. The objective of the utility model is to solve the problem of low efficiency of existing manual examination results. According to the low-voltage electric appliance assessment device provided by the invention, the operation panel is arranged to facilitate the operation of an operator, and the data acquisition board is electrically connected with the operation panel to acquire the panel connection information on the operation panel; the processor is electrically connected with the data acquisition board and is configured to compare the panel connection information acquired by the data acquisition board with the preset wiring reference information so as to output an examination result, manual examination is not needed, the examination efficiency is improved, and the examination accuracy is improved. Moreover, the operation panel, the processor and the data acquisition board are all fixed on the supporting table, so that the function integration can be realized, the movement of the low-voltage electric appliance assessment device is facilitated, and the use convenience of the low-voltage electric appliance assessment device is improved.

Description

Technical Field

[0001] This application relates to the technical field of teaching and training equipment, and particularly to a low-voltage electrical appliance assessment device. Background Art

[0002] In the teaching of low-voltage electrical appliance control technology, various different contents are involved, such as circuit principle and analysis technology, motor control technology, sensor and detection technology, programmable logic controller (PLC) technology, power electronics technology, industrial communication technology, etc.

[0003] After the theoretical study of low-voltage electrical appliance control technology, technical training is usually carried out, and electrical components are connected using a low-voltage electrical appliance operation panel. Then, the training teacher checks the connections of each electrical component to assess the trainees' mastery of knowledge.

[0004] However, due to the contents of different modules of low-voltage electrical appliance control technology, the electrical components involved and the connection relationships between electrical components are all different. Manual inspection makes the assessment process complex and inefficient, and there may even be misjudgments. Utility Model Content

[0005] This application provides a low-voltage electrical appliance assessment device to solve the technical problem of low efficiency of the existing manual inspection and assessment results.

[0006] To solve the above technical problem, this application adopts the following technical solutions:

[0007] This application provides a low-voltage electrical appliance assessment device, which includes: an operation panel, a support table, a processor, and a data acquisition board; the data acquisition board is electrically connected to the operation panel and the processor respectively, and the data acquisition board is configured to collect the port wiring information of the operation panel and send it to the processor; the processor is configured to compare the panel connection information collected by the data acquisition board with the preset wiring reference information; the operation panel, the processor, and the data acquisition board are all installed on the support table, and the processor and the data acquisition board are located on the same side of the operation panel.

[0008] Compared with the prior art, the low-voltage electrical appliance assessment device provided in the first aspect of this application has the following advantages:

[0009] The low-voltage electrical appliance assessment device provided by this application facilitates operation by setting an operation panel, and collects the panel connection information on the operation panel by setting a data acquisition board electrically connected to the operation panel; the processor is electrically connected to the data acquisition board and is configured to compare the panel connection information collected by the data acquisition board with the preset wiring reference information, so as to output an assessment result, eliminating the need for manual inspection, improving the inspection efficiency and the accuracy of inspection. Moreover, the operation panel, the processor, and the data acquisition board are all fixed on the support platform, which can not only achieve function integration, but also facilitate the movement of the low-voltage electrical appliance assessment device, thereby improving its usability.

[0010] As an improvement to the above low-voltage electrical appliance assessment device of this application, the data acquisition board includes a port selection board, a serial-parallel conversion board, and a control board. The port selection board and the serial-parallel conversion board are respectively electrically connected to the ports of the operation panel, and the control board is electrically connected to the port selection board and the serial-parallel conversion board respectively; the control board is configured to control the port selection board to determine the acquisition ports; the serial-parallel conversion board is configured to collect the port wiring information of multiple said acquisition ports in parallel and send it to the control board serially; the control board is also configured to form the panel connection information according to the port wiring information.

[0011] As an improvement to the above low-voltage electrical appliance assessment device of this application, the data acquisition board includes a plurality of said port selection boards, and the plurality of port selection boards are arranged in a rectangular matrix.

[0012] As an improvement to the above low-voltage electrical appliance assessment device of this application, the data acquisition board includes a plurality of said serial-parallel conversion boards, and the plurality of serial-parallel conversion boards are arranged in a rectangular matrix.

[0013] As an improvement to the above low-voltage electrical appliance assessment device of this application, the control board is a single-chip microcomputer.

[0014] As an improvement to the above low-voltage electrical appliance assessment device of this application, the data acquisition board further includes an input / output expansion board, and the control board is electrically connected to the port selection board and the serial-parallel conversion board respectively through the input / output expansion board.

[0015] As an improvement to the above low-voltage electrical appliance assessment device of this application, the low-voltage electrical appliance assessment device further includes a connecting wire, and the data acquisition board and the operation panel are electrically connected through the connecting wire; a plurality of wire grooves are provided on the support platform, and the connecting wire is restricted within the wire grooves.

[0016] As an improvement to the above low-voltage electrical appliance assessment device of this application, the wire groove located in front of the operation panel extends from the operation panel to the data acquisition board.

[0017] As an improvement of the above-mentioned low-voltage electrical appliance assessment device of the present application, the support platform includes a platform body, a plurality of legs and a plurality of universal wheels. The operation panel, the processor and the data acquisition board are all installed on the platform body. The tops of the plurality of legs are fixedly connected to the platform body, and the bottoms of the plurality of legs are respectively installed with the universal wheels.

[0018] As an improvement of the above-mentioned low-voltage electrical appliance assessment device of the present application, the operation panel includes a training operation board and a support frame. The bottom end of the support frame is fixed on the support platform, and the top end of the support frame is fixedly connected to the training operation board. The rear end of the training operation board is configured to be inclined away from the support platform, so that a preset included angle is formed between the board surface of the training operation board and the table surface of the support platform.

[0019] As an improvement of the above-mentioned low-voltage electrical appliance assessment device of the present application, the support frame includes two support plates. The two support plates are arranged opposite to and spaced apart from each other in a first direction. The tops of the two support plates are inclined surfaces. The inclined surface has a first end and a second end opposite to each other in a second direction. The second direction is perpendicular to the first direction. There is a first gap between the first end of the inclined surface and the support platform, and there is a second gap between the second end of the inclined surface and the support platform. The second gap is greater than the first gap. The training operation board is fixedly connected to the inclined surface.

[0020] In addition to the technical problems solved by the present application, the technical features constituting the technical solutions, and the beneficial effects brought by the technical features of these technical solutions described above, other technical problems that can be solved by the low-voltage electrical appliance assessment device provided by the present application, other technical features included in the technical solutions, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation manners. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments of the present application or the prior art. Obviously, the following drawings are only a part of the embodiments of the present application. These drawings and the text description are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 Structural schematic diagram of the low-voltage electrical appliance assessment device provided by the embodiment of the present application;

[0023] Figure 2Schematic diagram of the low-voltage electrical appliance assessment device provided by the embodiment of the present application;

[0024] Figure 3 Partial structural schematic diagram of the data acquisition board provided by the embodiment of the present application;

[0025] Figure 4 Top view of the low-voltage electrical appliance assessment device provided by the embodiment of the present application;

[0026] Figure 5 Front view of the low-voltage electrical appliance assessment device provided by the embodiment of the present application;

[0027] Figure 6 Exploded schematic diagram of the operation panel provided by the embodiment of the present application.

[0028] Explanation of reference numerals:

[0029] 100: Operation panel; 110: Training operation board; 120: Support frame; 121: Support plate; 1211: Inclined surface;

[0030] 200: Support table; 201: Wire groove; 210: Table body; 220: Legs; 230: Universal wheels; 240: Connecting rod;

[0031] 300: Processor; 310: Host computer;

[0032] 400: Data acquisition board; 410: Port selection board; 420: Serial-parallel conversion board; 430: Control board; 440: Resistor network; 450: Terminal block; 460: Input / output expansion board. Detailed implementation manners

[0033] The following details the embodiments of the present application. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application and should not be construed as limiting the present application.

[0034] Combined with Figure 1 and Figure 2 , the embodiment of the present application provides a low-voltage electrical appliance assessment device, which includes: an operation panel 100, a support table 200, a processor 300, and a data acquisition board 400.

[0035] Among them, the operation panel 100 is the main component for teaching, training, and assessing the basic principles, operation methods, and troubleshooting of low-voltage electrical appliances.

[0036] The operation panel 100 includes a power module, a circuit module, a measurement module, a load module, connection ports, etc. The operator uses connection wires to connect different modules and different loads, enhancing the learning of circuit principles, control technologies, etc. The operation panel 100 has multiple acquisition ports.

[0037] The data acquisition board 400 is electrically connected to the operation panel 100. Exemplarily, the data acquisition board 400 is electrically connected to the operation panel 100 through a connection cable. The data acquisition board 400 is configured to acquire the panel connection information on the operation panel 100, which may include an acquisition chip, a transmission chip, etc.

[0038] Since the acquisition ports of the operation panel 100 are not applied every time and the applied functions are not the same, in the embodiments of the present application, the data acquisition board 400 is configured to selectively acquire data from the acquisition ports on the operation panel 100.

[0039] The processor 300 is electrically connected to the data acquisition board 400, so that the panel connection information acquired by the data acquisition board 400 can be sent to the processor 300; the processor 300 is configured to compare the panel connection information acquired by the data acquisition board 400 with the preset wiring reference information.

[0040] In some embodiments, the low-voltage electrical appliance assessment device further includes a display, which is electrically connected to the processor 300 and is configured to display the comparison result of the processor 300. Of course, the display can also be configured to display the panel connection information acquired by the data acquisition board 400.

[0041] In some embodiments, the low-voltage electrical appliance assessment device includes a host computer 310, and the processor 300 is integrated in the host computer 310. The host computer 310 can be a computer, which integrates multiple functions such as processing, display, and storage, and does not require an additional configured processor. Using a computer as the host computer 310, the analysis and calculation functions are powerful and stable.

[0042] In some embodiments, the computer is configured with a virtual component diagram as a guide, and there is no need to contact the mains electricity during operation, improving the safety of the operator.

[0043] In the embodiments of the present application, the host computer 310 is installed on the support platform 200, which is convenient for operators and teachers to check, guide, etc.

[0044] Such as Figure 1 and Figure 2 As shown, in the embodiments of the present application, the operation panel 100, the processor 300, and the data acquisition board 400 are all installed on the support platform 200, which is convenient for function integration and also facilitates operators or inspectors to conduct inspections. Among them, the support platform 200 can be an aluminum profile platform.

[0045] Among them, the processor 300 and the data acquisition board 400 are located on the same side of the operation panel 100. Thus, the operation panel 100 is arranged on one side of the support platform 200, which is conducive to improving the convenience of operation for the operator.

[0046] Therefore, for the low-voltage electrical appliance assessment device of the embodiment of the present application, by arranging the operation panel 100, it is convenient for the operator to operate. And by arranging the data acquisition board 400 to be electrically connected to the operation panel 100 to collect the panel connection information on the operation panel 100; the processor 300 is electrically connected to the data acquisition board 400 and is configured to compare the panel connection information collected by the data acquisition board 400 with the preset wiring reference information, so as to output the assessment result, without manual inspection, improving the inspection efficiency and the accuracy of inspection. Moreover, the operation panel 100, the processor 300 and the data acquisition board 400 are all fixed on the support platform 200, which can not only achieve the integration of functions, but also facilitate the movement of the low-voltage electrical appliance assessment device, thereby improving its usability.

[0047] Combined with Figure 2 and Figure 3 , in some embodiments, the data acquisition board 400 includes a port selection board 410, a serial-parallel conversion board 420 and a control board 430. The port selection board 410 and the serial-parallel conversion board 420 are respectively electrically connected to the ports of the operation panel 100, and the control board 430 is respectively electrically connected to the port selection board 410 and the serial-parallel conversion board 420.

[0048] The control board 430 is configured to control the port selection board 410 to determine the acquisition port. The serial-parallel conversion board 420 is configured to collect the port wiring information of multiple acquisition ports in parallel and serially send it to the control board 430.

[0049] In some embodiments, the control board 430 is further configured to form panel connection information according to the port wiring information.

[0050] In some other embodiments, the control board 430 is used to perform data interaction with the host computer 310, send the collected port wiring information to the host computer 310, so that the host computer 310 forms panel connection information according to the port wiring information and compares it with the preset wiring reference information.

[0051] In some embodiments, the control board 430 is a single-chip microcomputer, which has the advantages of low cost, small volume, low power consumption and strong real-time control ability.

[0052] In some embodiments, the data transmission between the control board 430 and the host computer 310 is carried out through a USB serial port.

[0053] In some embodiments, the control board 430 uses the STC8H8K64U single-chip microcomputer. The STC8H8K64U single-chip microcomputer has good stability, reliability, and economy. It has an ultra-high-speed 8051 core (1T), which is about 12 times faster, and a maximum of 64K bytes of Flash program memory ROM. STC series single-chip microcomputers are widely used in the field of embedded system development due to their high performance, low power consumption, and low cost. The main parameter characteristics of the STC8H8K64U single-chip microcomputer are as follows:

[0054] 1) High performance: It has an ultra-high-speed 8051 core and runs fast.

[0055] 2) Large storage capacity: It provides sufficient program storage and data storage space.

[0056] 3) Abundant peripherals: It integrates a variety of peripherals to meet various application requirements.

[0057] 4) Low power consumption: It performs well in energy conservation and is suitable for battery-powered devices.

[0058] 5) High reliability: It can work stably in various environments.

[0059] 6) Easy development: It reduces the development difficulty and cost.

[0060] 7) High cost performance: It has a good balance between performance and price.

[0061] 8) Wide compatibility: It is convenient to integrate with other devices or systems.

[0062] In some embodiments, the port selection board 410 uses the CD4051B chip. The CD4051B has high reliability, stable performance, and reliable operation; at the same time, it has the characteristic of low power consumption and can effectively save electric energy. It is small in size and convenient to layout on the circuit board. It is easy to use, has simple logic control, and can be easily integrated with other circuits. It has a wide range of applications and can be applied to various analog signal switching. And it has low cost; it also has high precision, can accurately select and switch input signals, and has good conduction characteristics, which can ensure the signal transmission quality.

[0063] The CD4051B analog multiplexer is a digitally controlled analog switch with a low ON impedance and an extremely low OFF leakage current. The CD4051B chip is a single 8-channel multiplexer with three binary input terminals A, B, and C, and an INH control terminal. The control board 430 controls the INH control terminal to control the three binary input terminals A, B, and C. One of the 8 channels will be opened by the three binary signals, and one of the 8 inputs will be connected to the output. The main parameter characteristics of this driver are as follows:

[0064] 1) Digital and analog signal levels: 3V to 20V analog, ≤20V PP.

[0065] 2) Low on-resistance: 125Ω (typical value), signal input range exceeding 15V PP.

[0066] 3) High blocking resistance: 3V to 20V when V DD - V EE = 18V.

[0067] 4) Logic level conversion: V DD - V SS = 3V to 20V, switching analog signals to 20V PP (V DD - V EE = 20V).

[0068] 5) Matched switch characteristics: r ON = 5Ω (typical value) when V DD - V EE = 15V.

[0069] 6) Extremely low static power consumption: typical value of 0.2μW when V DD - V SS = 10V.

[0070] 7) Binary address decoding: 5V, 10V, and 15V parameter rates.

[0071] 8) Static current: 18V at 20V, maximum input current of 1μA over the entire package temperature range, 100nA at 18V and 25°C.

[0072] In some embodiments, the serial - parallel conversion board 420 employs a 74HC165B chip. The 74HC165B is a high - speed CMOS 8 - bit parallel - input / serial - output shift register chip. It is mainly used to convert parallel data into serial data, so its main function is to input parallel data and output serial data.

[0073] Specifically, the 74HC165B chip includes the following pins:

[0074] 1) Parallel input pins (D0 - D7): These pins are used to receive 8 - bit parallel data.

[0075] 2) Serial output pin (Q7): This pin is used to output serial data.

[0076] 3) Serial input pin (SER): This pin is used to receive serial data, usually for cascading multiple 74HC165B chips.

[0077] Of course, the 74HC165B chip also includes clock pins, enable pins, etc.

[0078] In the embodiment of the present application, the STC8H8K64U single-chip microcomputer is used as the core processor, which forms a data acquisition board with the CD4051B and the 74HC165B. It has a low cost, a simple structure, rich peripheral interfaces, and is convenient for later upgrade and maintenance.

[0079] In the embodiment of the present application, the data acquisition board 400 includes a plurality of port selection boards 410 to adapt to the relatively many acquisition ports of the operation panel 100 and improve the acquisition efficiency.

[0080] In some embodiments, the plurality of port selection boards 410 are arranged in a rectangular matrix, with a regular arrangement, which is conducive to cable connection.

[0081] The data acquisition board 400 includes a plurality of serial-parallel conversion boards 420 to adapt to the relatively many acquisition ports of the operation panel 100 and improve the acquisition efficiency.

[0082] In some embodiments, the plurality of serial-parallel conversion boards 420 are arranged in a rectangular matrix, which is not only regularly arranged but also conducive to cable connection.

[0083] Based on the STC8H8K64U single-chip microcomputer, the embodiment of the present application designs a low-voltage electrical appliance assessment device, which can assess quickly and accurately and can be applied to aspects such as practical teaching of electromechanical majors and electrical control majors, and low-voltage electrical assessment; it has a simple structure, a low cost, is easy to operate, and has a wide application range.

[0084] Combined with Figure 4 , in some embodiments, the data acquisition board 400 further includes an input / output expansion board 460. The control board 430 is electrically connected to the port selection board 410 and the serial-parallel conversion board 420 through the input / output expansion board 460 to improve the convenience of connection between the control board 430 and the port selection board 410 and the serial-parallel conversion board 420.

[0085] Combined with Figure 3 , in some embodiments, the data acquisition board 400 further includes a terminal block 450. The terminal block 450 is electrically connected to the control board 430, and the terminal block 450 is electrically connected to the host computer 310 through a wire, thereby realizing the electrical connection between the control board 430 and the host computer 310.

[0086] In some embodiments, the data acquisition board 400 further includes a pull-up resistor network 440, and the pull-up resistor network 440 serves as a pull-up resistor or a pull-down resistor.

[0087] When the pull-up resistor network 440 serves as a pull-up resistor, it is connected between the signal line and the power supply voltage (usually Vcc). Its function is to pull the signal line up to the high-level (logical 1) state.

[0088] When the resistor 440 acts as a pull - down resistor, it is connected between the signal line and the ground (GND). Its function is to pull the signal line down to the low - level (logic 0) state.

[0089] In some embodiments of the present application, the low - voltage electrical appliance assessment device further includes a box body, which is fixed on the support platform 200, and the data acquisition board 400 is fixed inside the box body, playing a role in shielding and protecting the data acquisition board 400.

[0090] In some embodiments, the low - voltage electrical appliance assessment device further includes a connecting wire. The data acquisition board 400 and the operation panel 100 are electrically connected through the connecting wire; multiple wire grooves 201 are arranged on the support platform 200, and the connecting wire is restricted within the wire grooves 201. Such a setting facilitates the regular arrangement of the connecting wire. Moreover, multiple wire grooves 201 are provided, improving the flexibility of the position where the connecting wire is restricted.

[0091] In some embodiments, the operation panel 100 is rectangular, and wire grooves 201 are respectively arranged around the operation panel 100. The connecting wire can be taken and placed from multiple directions of the operation panel 100, improving the convenience of using the low - voltage electrical appliance assessment device.

[0092] In some embodiments, the wire groove 201 located on the front side of the operation panel 100 extends from the operation panel 100 to the data acquisition board 400. With such a setting, not only can the wire groove 201 have a longer length, increasing the storage position of the connecting wire, but also it is convenient to take and place the connecting wire on one side of the data acquisition board 400, further improving the convenience of using the assessment device.

[0093] Combined Figure 1 and Figure 5 , in some embodiments, the support platform 200 includes a platform body 210, multiple support legs 220, and multiple universal wheels 230. The operation panel 100, the processor 300, and the data acquisition board 400 are all installed on the platform body 210. The platform body 210 can be rectangular, with a regular shape, facilitating the arrangement of each component.

[0094] The tops of the multiple support legs 220 are fixedly connected to the platform body 210, and the connection methods include but are not limited to screw connection, welding, etc.

[0095] The bottoms of the multiple support legs 220 are respectively installed with universal wheels 230, facilitating the overall movement of the assessment device. Among them, the universal wheels 230 have a braking structure. When the assessment device moves to the set position, the braking structure is configured to brake the universal wheels 230 to prevent the universal wheels 230 from rolling.

[0096] Exemplarily, four support legs 220 are provided, which are respectively installed in the four corner regions of the rectangular platform body 210, with a simple and stable structure.

[0097] In some embodiments, the support platform 200 further includes a connecting rod 240. At least one connecting rod 240 is disposed between two adjacent legs 220 to increase the structural strength and stability of the support platform 200.

[0098] In some embodiments, the operation panel 100 includes a training operation board 110 and a support frame 120. The training operation board 110 has a plurality of acquisition ports. The support frame 120 is configured to support the training operation board 110 on the support platform 200.

[0099] The bottom end of the support frame 120 is fixed to the support platform 200. For example, the bottom end of the support frame 120 is welded to the support platform 200; alternatively, the bottom end of the support frame 120 is fixed to the support platform 200 by screws.

[0100] The top end of the support frame 120 is fixedly connected to the training operation board 110. The fixed connection methods include but are not limited to snap connection, screw connection, etc.

[0101] Moreover, the rear end of the training operation board 110 in the embodiment of the present application is configured to be inclined away from the support platform 200, so as to form a preset angle between the plate surface of the training operation board 110 and the table surface of the support platform 200. Wherein, the operator stands on the front side of the training operation board 110 to perform operations. In the orientation shown in the drawings, the Y-axis direction corresponds to the front-back direction.

[0102] In the embodiment of the present application, through the support of the support frame 120, the rear end of the training operation board 110 is lifted, so that the operator can observe the training operation board 110 more clearly, improving the convenience of operation.

[0103] In some embodiments, in combination with Figure 6 , the support frame 120 includes two support plates 121. The two support plates 121 are relatively and spaced apart along a first direction (corresponding to the X-axis direction in the drawings). The top ends of the two support plates 121 are inclined surfaces 1211. The inclined surface 1211 has a first end and a second end opposite to each other along a second direction (corresponding to the Y-axis direction in the drawings). The second direction is perpendicular to the first direction;

[0104] There is a first gap between the first end of the inclined surface 1211 and the support platform 200, and a second gap between the second end of the inclined surface 1211 and the support platform 200. The second gap is greater than the first gap;

[0105] The training operation board 110 is fixedly connected to the inclined surface 1211.

[0106] In the embodiment of the present application, a support frame 120 is formed by arranging two support plates 121 to support the training operation board 110, and the structure is simple; an inclined surface 1211 is formed at the top of the support plate 121 so that the training operation board 110 is inclined relative to the support table 200, which is convenient for the operator to operate.

[0107] In some other embodiments, the support frame 120 includes a first support member and a second support member arranged at intervals in the second direction. Among them, the first support member is hinged to the rear end of the training operation board 110, and the second support member is fixedly connected to the front end of the training operation board 110. The second support member is configured to be telescopable in the vertical direction. For example, the second support member is a telescopic rod. In this way, by using the second support member and the first support member, not only can the training operation board 110 be inclined relative to the support table 200, but also the inclination angle of the training operation board 110 can be set according to the actual situation, and the adjustment is more flexible.

[0108] In some embodiments, the low-voltage electrical appliance assessment device further includes an emergency stop button. When the device state is abnormal or there is a wrong operation, the operator presses the emergency stop button, and the control system immediately takes measures, such as power off, to improve safety.

[0109] In some embodiments, the low-voltage electrical appliance assessment device further includes a reminder, such as an indicator light, a buzzer, etc. When the device is abnormal, the indicator light and the buzzer are activated to prompt the operator to deal with it in time, further improving the safety of the device.

[0110] In the above description, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0111] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A low voltage electrical appliance testing device, characterized in that: include: Operation panel, support table, processor and data acquisition board; The data acquisition board is electrically connected to the operation panel and the processor respectively, and the data acquisition board is configured to collect port wiring information of the operation panel and send it to the processor; The processor is configured to compare the panel connection information collected by the data acquisition board with preset wiring reference information; The operation panel, the processor and the data acquisition board are all installed on the support table, and the processor and the data acquisition board are located on the same side of the operation panel.

2. The low-voltage electrical appliance testing device according to claim 1 is characterized in that: The data acquisition board includes a port selection board, a serial-parallel conversion board and a control board. The port selection board and the serial-parallel conversion board are electrically connected to the ports of the operation panel respectively, and the control board is electrically connected to the port selection board and the serial-parallel conversion board respectively; the control board is configured to control the port selection board to determine the acquisition port; the serial-parallel conversion board is configured to collect port wiring information of multiple acquisition ports in parallel and send it serially to the control board; the control board is also configured to form the panel connection information according to the port wiring information.

3. The low-voltage electrical appliance testing device according to claim 2 is characterized in that: The data acquisition board comprises a plurality of the port selection boards, and the plurality of the port selection boards are arranged in a rectangular matrix; and / or, The data acquisition board includes a plurality of the serial-parallel conversion boards, and the plurality of the serial-parallel conversion boards are arranged in a rectangular matrix.

4. The low-voltage electrical appliance testing device according to claim 2, characterized in that: The control board is a single chip microcomputer.

5. The low-voltage electrical appliance testing device according to claim 2 is characterized in that: The data acquisition board also includes an input / output expansion board, and the control board is electrically connected to the port selection board and the serial-parallel conversion board respectively through the input / output expansion board.

6. The low-voltage electrical appliance testing device according to any one of claims 1 to 5, characterized in that: The low-voltage electrical appliance assessment device also includes a connecting line, and the data acquisition board and the operation panel are electrically connected through the connecting line; a plurality of wire grooves are arranged on the support platform, and the connecting line is confined in the wire grooves.

7. The low-voltage electrical appliance testing device according to claim 6, characterized in that: The wire slot located on the front side of the operation panel extends from the operation panel to the data acquisition board.

8. The low-voltage electrical appliance testing device according to any one of claims 1 to 5, characterized in that: The support platform includes a platform body, a plurality of legs and a plurality of universal wheels. The operation panel, the processor and the data acquisition board are all installed on the platform body. The top ends of the plurality of legs are fixedly connected to the platform body, and the universal wheels are respectively installed at the bottom ends of the plurality of legs.

9. The low-voltage electrical appliance testing device according to any one of claims 1 to 5, characterized in that: The operation panel includes a training operation panel and a support frame, the bottom end of the support frame is fixed to the support platform, the top end of the support frame is fixedly connected to the training operation panel, and the rear end of the training operation panel is constructed to be inclined away from the support platform so that a preset angle is formed between the panel surface of the training operation panel and the table surface of the support platform.

10. The low-voltage electrical appliance testing device according to claim 9, characterized in that: The support frame comprises two support plates, the two support plates are arranged opposite to each other and spaced apart along a first direction, the top ends of the two support plates are inclined surfaces, the inclined surfaces have a first end and a second end opposite to each other along a second direction, and the second direction is perpendicular to the first direction; There is a first interval between the first end of the inclined surface and the support platform, and there is a second interval between the second end of the inclined surface and the support platform, and the second interval is greater than the first interval; The training operation panel is fixedly connected to the inclined surface.

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