Communication box for digital transformation of electrical equipment testing instrument

Abstract

The utility model discloses a communication box for digital transformation of an electrical equipment test instrument, which comprises a shell and a shell cover, an MCU board is mounted in the shell, an RS232 interface and an RS485 interface are mounted at the bottom end of the shell, a Type-C interface, a Type-A interface and a dual-mode Bluetooth transceiving end are mounted at the top end of the shell, and heat dissipation holes and a TF card slot are formed in the right side of the shell; according to the utility model, the communication with a mobile terminal is realized through Bluetooth, and the communication with an electrical equipment test instrument is realized through RS232, RS485, asynchronous serial port communication TTL, a USB host and a USB slave, so that a one-to-many butt joint mode is realized, the test instrument and micro-service are connected, and the standard processes of automatic order processing, test and data uploading are completed.

Description

Technical Field

[0001] The utility model belongs to the field of electrical equipment testing instruments, and in particular relates to a communication box used for digital transformation of electrical equipment testing instruments. Background Art

[0002] At present, a large part of electrical equipment testing instruments use USB flash drives, RS232, and RS485 to save and transmit data. In electrical equipment inspection and testing, data is recorded manually, and results are judged based on experience. Inspection and testing are completed by manual upload services, making it difficult to match work order tasks with data, and inspection tasks are missed.

[0003] In the context of the formulation of the "Technical Specifications for Data and Communication of Digital Test Instruments for Electrical Equipment" and the digital transformation of electrical equipment test instruments, a communication box was developed to open up the interaction between test instruments and microservices and realize the standard process of work orders, testing, and uploading data. Utility Model Content

[0004] In view of the above defects, the utility model provides a communication box for digital transformation of electrical equipment testing instruments, including a shell and a shell cover, an MCU board is installed inside the shell, an RS232 interface and an RS485 interface are installed at the bottom of the shell, a Type-C interface, a Type-A interface and a dual-mode Bluetooth transceiver are installed at the top of the shell, a heat dissipation hole and a TF card slot are provided on the right side of the shell, the RS232 interface, the RS485 interface, the Type-C interface, the Type-A interface, the dual-mode Bluetooth transceiver and the TF card slot correspond to the interfaces corresponding to the MCU board, an operation panel is connected to the shell cover, a display screen, buttons and indicator lights are installed at the operation panel, and a battery for powering the MCU board is installed inside the shell;

[0005] A groove is provided on the left side of the shell, and a magnet for adsorption and fixing is installed inside the groove;

[0006] Slots are provided at the four end corners of the shell, and plug rods adapted to the slots are fixed at the four end corners of the shell cover. Corresponding thread grooves I and II are respectively provided at the bottom ends of the plug rods and the slots, and the thread grooves I and II are fixed by bolts.

[0007] Furthermore, the Type-C interface, Type-A interface, RS232 interface, RS485 interface, and TF card slot are all equipped with EMC devices, and the EMC devices include surge protectors and electrostatic protectors.

[0008] Furthermore, the insertion rod and the slot are both U-shaped.

[0009] Furthermore, the insertion end of the thread groove II is not provided with threads, and the diameter value of the insertion end is greater than the diameter value of the rear end.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] Communicate with the mobile terminal through the dual-mode Bluetooth transceiver, and communicate with the electrical equipment test instrument through the Type-C interface (USB slave) and the Type-A interface (USB host). Specifically, the RS232 interface connects the electrical equipment test instrument with RS232 communication or TTL communication, and the RS485 interface connects the electrical equipment test instrument with RS485 communication, realizing a one-to-many docking mode, opening up the interaction between the test instrument and the microservice, and completing the standard process of automated work orders, testing, and uploading data;

[0012] It can be directly connected to the electrical equipment test instrument externally, or it can be embedded inside the electrical equipment test instrument after removing the operation panel, which has better adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram I of the present utility model.

[0014] Figure 2 This is a three-dimensional diagram II of the utility model.

[0015] Figure 3 It is a cross-sectional view of the shell in the utility model when viewed from above.

[0016] Figure 4 It is a schematic diagram of the insertion rod in the utility model.

[0017] Figure 5 It is a schematic diagram of the connection between various modules at the MCU board in the utility model.

[0018] Figure 6 It is the wiring diagram of the RS485 interface in the present utility model.

[0019] Figure 7 It is the wiring diagram of the RS232 interface in the present utility model.

[0020] Figure 8 This is the wiring diagram of the Bluetooth module in the present utility model.

[0021] Figure 9 This is the wiring diagram of the Type-C interface in the present utility model.

[0022] Figure 10 This is the wiring diagram of the Type-A interface in the present utility model.

[0023] Figure 11 This is the wiring diagram of the TF card slot in the present utility model.

[0024] Figure 12This is the wiring diagram of the charging circuit and the power supply in the present utility model.

[0025] Figure 13 This is the wiring diagram of the MCU board in the present utility model.

[0026] In the figure: 1. Type-C interface; 2. Type-A interface; 3. RS232 interface; 4. RS485 interface; 5. TF card slot; 6. Display screen; 7. Button; 8. Indicator light; 9. Dual-mode Bluetooth transceiver; 10. Slot; 11. Magnet; 12. Threaded groove I; 13. Bolt; 14. Threaded groove II; 15. Plug rod. Detailed implementation manners

[0027] To facilitate the understanding of the present utility model, the device of the present utility model will be described more comprehensively below with reference to the relevant drawings. Embodiments of the device are shown in the drawings. However, the device can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Embodiment

[0030] As Figures 1-5As shown in the figure, this embodiment provides a communication box for the digital transformation of electrical equipment testing instruments, including a housing and a housing cover. An MCU board is installed inside the housing. An RS232 interface 3 and an RS485 interface 4 are installed at the bottom end of the housing. A Type-C interface 1 (for connecting to a USB slave), a Type-A interface 2 (for connecting to a USB host), and a dual-mode Bluetooth transceiver 9 (for connecting to the Bluetooth module on the MCU board to realize transceiver functions, including a radio frequency transmitter and a radio frequency receiver) are installed at the top end of the housing. Heat dissipation holes and a TF card slot 5 are provided on the right side of the housing. The RS232 interface 3, RS485 interface 4, Type-C interface 1, Type-A interface 2, dual-mode Bluetooth transceiver 9, and TF card slot 5 are respectively corresponding to the interfaces on the MCU board at their respective positions. An operation panel is clamped at the housing cover, and a display screen 6, buttons 7, and indicator lights 8 for human-computer interaction are installed on the operation panel. Specifically, the human-computer interaction is used to select the instrument type, data interface, standard protocol, electrical equipment testing instrument protocol, and the factory number of the electrical equipment testing instrument for connecting to the electrical equipment testing instrument. A battery for powering the MCU board is installed inside the housing. The indicator lights 8 include a charging indicator light, a power indicator light, and an operation indicator light. The charging indicator light indicates the charging status, and charging can be carried out in the shutdown state;

[0031] It should be noted that the MCU board is used to form a human-computer interaction with the button circuit and the display circuit to realize power on and off, and to realize the selection of the equipment testing instrument (including instrument type / data interface / standard protocol / equipment testing instrument protocol / equipment testing instrument factory number). Specifically, the Type-C is used as a communication port and is connected to the MCU board through a circuit. It is also used as a charging interface and is connected to the charging circuit of the MCU board with a DC 5V voltage (DC5V). (The charging circuit operates independently of the power supply circuit and is directly connected to the battery and the indicator lights 8, which is equivalent to having two power supply circuits to realize two forms of direct connection power supply and mobile power supply). The power supply circuit of the MCU board is connected to the battery through a circuit and is powered by the battery. The power supply circuit is controlled by the button 7, and the power-on status is indicated by the indicator lights 8. The power supply circuit powers the MCU board, the button circuit of the button 7, the display circuit of the display screen 6, the circuit of the RS232 interface 3, the circuit of the RS485 interface 4, the circuit of the Type-A interface 2, the circuit of the TF card interface 5, and the Bluetooth module (model number FSC-BT986) on the MCU board.

[0032] Specifically, EMC devices are installed on the Type-C interface 1, Type-A interface 2, RS232 interface 3, RS485 interface 4, and TF card slot 5. The EMC devices include a surge protector and an electrostatic protector. The surge protector is used to limit the conduction of overvoltage and current and bypass the excessive surge voltage around the device. The electrostatic protector is used to protect electronic devices from damage caused by electrostatic discharge.

[0033] A groove is provided on the left side of the housing. A magnet 11 for adsorption and fixation is installed inside the groove. Slots 10 are provided at the four end corners of the housing. Plug rods 15 adapted to the slots 10 are fixed at the four end corners of the housing cover. Both the plug rod 15 and the slot 10 are U-shaped, which has good stability between the housing and the housing cover after insertion. At the same time, when the operation panel and the MCU board are connected by jumpers, it is convenient for alignment during sealed installation. Threaded grooves I12 and threaded grooves II14 are respectively provided at the bottom ends of the plug rod 15 and the slot 10. The threaded groove I12 and the threaded groove II14 are fixed by a bolt 13. The insertion end of the threaded groove II14 is not provided with threads, and the diameter value of the insertion end is greater than that of the rear end. The bolt 13 is used to reinforce the plug rod 15 and the slot 10 at the same position, and the larger insertion end can make the bolt 13 fixed at the corner insert into the inner wall of the housing without being blocked by the arc surface of the corner.

[0034] It should be noted that the dual-mode Bluetooth transceiver 9 supports classic Bluetooth and low-power Bluetooth and is used for communicating with mobile terminals and device firmware updates.

[0035] It should be noted that when the communication box is directly embedded and installed inside the electrical equipment test instrument, the operation panel clamped to the housing cover should be disassembled. At this time, the RS232 serial communication and the asynchronous serial communication TTL share the RS232 interface 3 through a cable.

[0036] In the communication box for digital transformation of an electrical equipment test instrument described in this embodiment, when in use, the communication box selects the electrical equipment test instrument to be docked (for 1-to-1 docking and embedding inside the electrical equipment test instrument, no selection is required). The mobile terminal receives and analyzes the tasks sent by the microservice. The mobile terminal connects to the Bluetooth module inside the communication box through Bluetooth. After the mobile terminal and the communication box establish a protocol connection, basic communication data is transmitted. The mobile terminal sends a command to query current data or historical data to the communication box. The communication box obtains the data of the electrical equipment test instrument through Type-A, Type-C, RS232, and RS485, converts it into the standard protocol of the "Data and Communication Technology Specification for Electrical Equipment Digital Test Instruments", and then sends it to the mobile terminal through Bluetooth. After all tasks of the mobile terminal are completed, the data is uniformly submitted to the microservice.

[0037] It should be noted that the structure described in the present invention can be implemented in many different forms and is not limited to the embodiments. Any equivalent transformation made by those of ordinary skill in the art using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, such as the loading and unloading of other items, is included in the protection scope of the present invention.

Claims

1. A communication box for the digital transformation of electrical equipment testing instruments, comprising a housing and a housing cover, characterized in that: An MCU board is installed inside the housing. An RS232 interface and an RS485 interface are installed at the bottom end of the housing. A Type-C interface, a Type-A interface and a dual-mode Bluetooth transceiver are installed at the top end of the housing. Heat dissipation holes and a TF card slot are provided on the right side of the housing. The RS232 interface, the RS485 interface, the Type-C interface, the Type-A interface, the dual-mode Bluetooth transceiver and the TF card slot are respectively corresponding to the interfaces on the MCU board. An operation panel is clamped at the housing cover. A display screen, buttons and indicator lights are installed at the operation panel. A battery for powering the MCU board is installed inside the housing; A groove is provided on the left side of the housing, and a magnet for adsorption and fixation is installed inside the groove; Slots are provided at the four end corners of the housing, and insertion rods adapted to the slots are fixed at the four end corners of the housing cover. Thread grooves I and thread grooves II corresponding to each other are respectively provided at the bottom ends of the insertion rods and the slots, and are fixed by bolts between the thread groove I and the thread groove II.

2. The communication box for digital transformation of an electrical equipment testing instrument according to claim 1, wherein: EMC devices are installed on the Type-C interface, the Type-A interface, the RS232 interface, the RS485 interface and the TF card slot. The EMC devices include a surge protector and an electrostatic protector.

3. The communication box for digital transformation of electrical equipment testing instruments according to claim 1, characterized in that: Both the insertion rod and the slot are U-shaped.

4. A communication box for digital transformation of an electrical equipment testing instrument according to claim 1, characterized in that: The insertion end of the thread groove II is not provided with threads, and the diameter value of the insertion end is greater than that of the rear end.

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