Multifunctional communication test box

Abstract

The utility model discloses a multifunctional communication test box, which adopts an RS485 interface module or an RS232 interface module, so that the communication test box can be conveniently connected with an upper computer and a lower computer for communication, and is also provided with a CAN (Controller Area Network) communication interface, so that various communication tests can be carried out at the same time, the test time is saved, and the sorting time of test tools is also reduced; the multifunctional communication test box is integrated with a network interface module at the same time, so that the equipment has a switch function, multiple pieces of equipment can be connected at the same time, and the test is more convenient; by adding the analog quantity control module, the multifunctional communication test box has a simple control function when being matched with an upper computer, can be used as an I / O control module, and can monitor the state of equipment connected with the multifunctional communication test box; according to the multifunctional communication test box, the power supply conversion module is arranged, so that the equipment can be changed into a switching power supply providing different voltage levels, and matching of different power supply voltages is carried out on equipment needing power supply during testing.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing devices, and in particular relates to a multifunctional communication testing box. Background Art

[0002] The current energy storage system, whether it is a large container energy storage system or an industrial and commercial energy storage system, combines multiple devices such as battery management system (BMS), energy management system (EMS), energy storage converter system (PCS), fire protection system (FAS), liquid cooler and energy storage meter in its product structure. With the rapid development of the energy storage industry, energy storage systems have relevant specifications to follow (reference: "Standards for Electrochemical Energy Storage Power Stations (Updated on May 13, 2024)", but the scope of the specifications for communication interfaces and communication protocols is relatively broad, allowing multiple communication interfaces and communication protocols to exist at the same time. Each device communicates and networks through the corresponding communication protocol. Different manufacturers and different products use different communication methods. At present, energy storage cabinets generally have modbus communication, CAN bus communication and other methods. At this time, when testing or monitoring different products separately, the corresponding communication protocols are different, and the test tools used are different. At this time, various communication equipment is needed on site. Due to the large number of test tools, more space will be occupied when in use, and the test lines will also be messy. At the same time, when various test tools are stored after use, they will also be lost due to borrowing, untimely collection, and random placement. Therefore, a device that can concentrate many communication interfaces is needed at this time to avoid the trouble of carrying multiple communication test equipment every time.

[0003] The communication method of existing energy storage cabinet technology has the following defects and shortcomings:

[0004] 1. There are existing communication methods such as modbus communication and CAN bus communication. The equipment involved in this type of communication method includes RS232 to USB, RS485 to USB, communication CAN box, switches and other equipment, and also involves VGA, RJ45, USB and other communication ports. Now various devices are used independently, but for energy storage equipment that needs to monitor the working interface of different control and communication equipment at the same time, multiple communication devices must be used at the same time. This will result in the need to place multiple communication devices on site at the same time, and some of them require external power supply, which will make it take a lot of time to find various equipment before each test, and different voltage levels of power supply must be connected to different equipment. This will make the site more messy, and if you are not careful, there will be the phenomenon of wrong connection and missing connection, which will delay the test process.

[0005] 2. When a delivered energy storage cabinet fails, it is necessary to go to the site for troubleshooting. At this time, the specific cause is unknown, and various tools need to be brought. If some equipment is omitted during this process, the troubleshooting work cannot be carried out normally, avoiding unnecessary losses due to the lack of tools. At the same time, different equipment requires power supplies of different voltage levels. If the site cannot meet the needs of various power supplies, the troubleshooting work will not be carried out normally.

[0006] Because different equipment manufacturers use customized forms to achieve communication between equipment, the communication protocols between manufacturers are not unified. The interconnection between equipment from different manufacturers has to use a lot of communication protocol conversion. On the one hand, it increases the complexity of the system and affects the speed and reliability of information transmission. On the other hand, it increases the system cost and the difficulty of design, debugging, and maintenance. When the system is expanded, the equipment selection is also greatly constrained. It is extremely unfavorable for interoperability and information sharing between different devices. It is necessary to propose a device that integrates various communication functions and can provide various power types, or can complete the power supply of communication equipment by itself, so as to ensure the efficiency of production debugging and daily maintenance processes and save time costs. Utility Model Content

[0007] The utility model provides a multifunctional communication test box, which adopts different communication ports to carry out communication transmission of different protocols, and integrates power supplies of different voltage levels and I / O control modules, so as to realize external power supply and equipment status monitoring.

[0008] To solve the above problems, the technical solutions provided by the present invention are as follows:

[0009] The utility model provides a multifunctional communication test box, including a VGA interface and a PCB board, wherein the VGA interface is used for RS232 and RS485 communication; the PCB board is used to lead out a multi-channel integrated serial communication interface, which is led to the panel of the multifunctional communication test box through a terminal for external communication; an RS485 to USB module is integrated on the PCB board, so that RS485 communication is directly converted into USB communication mode, which is convenient for connecting to a PC for debugging;

[0010] The multifunctional communication test box includes a CAN to USB interface module, which integrates the circuit through a PCB board, and leads the communication pins of CANL and CANH to the panel of the multifunctional communication test box, which is convenient for external wiring, so that CAN communication is directly converted into USB communication mode, which is convenient for connecting to a PC for debugging;

[0011] The multifunctional communication test box also includes a network interface module for communication connection with a host computer. The network interface module realizes the integration of a switch through a communication integrated circuit, and fixes the RJ45 port on the panel of the multifunctional communication test box for external communication. The multifunctional communication test box is provided with an analog quantity control module, which is connected to an external device through the analog quantity control module, and feedback on the device status is performed by monitoring the electrical signal of the circuit.

[0012] According to an optional embodiment of the utility model, an AC power socket with a switch fuse is installed on the multifunctional communication test box, and power is supplied to the functional modules in the multifunctional communication test box by external power supply.

[0013] According to an optional embodiment of the utility model, the AC power socket is connected to a power conversion module, so that the 220AC voltage can be converted into a safe DC voltage of DC5-24V, which is led to the panel of the multifunctional communication test box through the wiring terminals to realize power supply to external devices.

[0014] Compared with the prior art, the embodiment of the utility model provides a multifunctional communication test box, which has the following beneficial effects:

[0015] (1) The data interface module uses an RS485 interface module or an RS232 interface module to facilitate the use of a communication test box to connect the upper computer and the lower computer for communication. It is also equipped with a CAN communication interface so that multiple communication tests can be performed simultaneously, which saves test time and reduces the time for organizing test tools.

[0016] (2) The multifunctional communication test box is also integrated with a network interface module, which enables the device to have a switch function and can connect multiple devices at the same time, making the test more convenient.

[0017] (3) By adding an analog control module, the multifunctional communication test box has a simple control function when used in conjunction with a host computer. It can be used as an I / O control module and can monitor the status of the device connected to the multifunctional communication test box.

[0018] (4) By setting a power conversion module, the multifunctional communication test box can be transformed into a switching power supply that provides different voltage levels, so as to match different power supply voltages to the devices that need power supply during the test.

[0019] Therefore, the beneficial effect of the utility model is that it concentrates various communication, control, and power supply functions, so that the device can better provide more convenient equipment support for on-site debugging, avoiding the waste of manpower and material resources caused by the need for various equipment during debugging and the omission of some equipment resulting in the inability to debug. The highly integrated multi-functional communication test box fills the gap of no centralized multi-functional box in the market. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the functional module distribution of a multifunctional communication test box provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0023] The utility model provides a multifunctional communication test box, comprising a VGA interface and a PCB board, wherein the VGA interface is used for RS232 and RS485 communications; the PCB board is used for leading out a multi-channel integrated serial port communication interface, which is led to the panel of the multifunctional communication test box through terminals for external communication; an RS485 to USB module is integrated on the PCB board, so that RS485 communication is directly converted into USB communication mode, which is convenient for connecting to a PC for debugging.

[0024] The multifunctional communication test box includes a CAN to USB interface module, which integrates the circuit through a PCB board, and leads the communication pins of CANL and CANH to the panel of the multifunctional communication test box, which is convenient for external wiring, so that CAN communication is directly converted into USB communication mode, which is convenient for connecting to a PC for debugging.

[0025] The multifunctional communication test box also includes a network interface module for communication connection with a host computer. The network interface module realizes the integration of a switch through a communication integrated circuit, and fixes the RJ45 port on the panel of the multifunctional communication test box for external communication. The multifunctional communication test box is provided with an analog quantity control module, which is connected to an external device through the analog quantity control module, and feedback on the device status is performed by monitoring the electrical signal of the circuit.

[0026] The multifunctional communication test box is equipped with an AC power socket with a switch fuse, and the functional modules in the multifunctional communication test box are powered by external power supply. The AC power socket is connected to a power conversion module, so that the 220AC voltage can be converted into a safe DC voltage of DC5-24V, which is led to the panel of the multifunctional communication test box through the wiring terminal to realize the power supply to the external device.

[0027] Specifically, Figure 1 The figure is a schematic diagram of the functional module distribution in the multifunctional communication test box. Figure 1 As shown, the multifunctional communication test box integrates a PCB board, RS232 communication port, RS485 communication port, TCP communication port, and CAN communication port. It also provides a DC 5-24V power supply. The PCB board is integrated with an RS485 to USB module. The following is a detailed introduction to the various functions of the multifunctional communication test box.

[0028] RS232 and RS485 to USB communication: The principle of RS485 and RS232 to USB mainly involves converting the data of RS485 and RS232 interfaces into USB interface data through a specific converter or module to realize data transmission between different interfaces. The serial port to USB converter contains a USB interface controller and a serial port interface controller. The USB interface controller is responsible for processing USB signals and converting them into internal bus signals; while the serial port interface controller is responsible for processing serial port signals and converting them into internal bus signals. The converter connects the two controllers through the internal bus to realize the conversion between serial port signals and USB signals. When data transmission is in progress, the computer sends data to the converter through the USB interface. After receiving the data, the USB interface controller inside the converter converts it into internal bus signals and then passes it to the serial port interface controller. The serial port interface controller then converts the internal bus signals into serial port signals and sends them to the target device through the serial port interface. Similarly, when the target device sends data through the serial port interface, the converter will also convert it into USB signals and then send it back to the computer through the USB interface.

[0029] CAN to USB interface conversion communication: 1. Receive CAN bus signal function: The multifunctional communication test box is connected to the CAN bus through the CAN bus terminal and receives data transmitted through the bus. The CAN bus signal consists of two wires, namely CAN_H and CAN_L, which are transmitted using differential signals. 2. Decode CAN signal function: The multifunctional communication test box integrates a CAN to USB conversion module, which converts the received CAN bus signal into a digital signal, and extracts the data, identifier and control information in the CAN frame through the built-in decoder. 3. USB communication function: The converter converts the decoded CAN signal into USB data format, transmits the data to the host computer through the built-in CAN to USB module, and the USB signal will be connected to the host computer through the USB port.

[0030] Function of I / O control module: Since the host computer cannot directly control and read the status of external devices, the I / O control module is required to reflect the status of the device through high and low level input and output. Therefore, the I / 0 device requires a control module to realize the control intermediary between the host computer and the mechanical parts of the IO device, which is used to realize the control of the device by the host computer. This electronic component is the I / 0 controller. 1: The host computer communicates with the integrated serial port server through the reserved RJ45 network port on the panel, so that the host computer can send the program to the I / O control module. 2: The external device to be monitored is connected to the terminal on the multi-function communication test box through a cable, and communicates with the host computer through the I / O control module integrated in the system, so as to achieve the function of controlling the device status.

[0031] Switch SW communication function: 1: Integrate the switch mainboard, switch network board, and interface board into the multi-function control box so that the box has the function of a switch. The RJ45 interface reserved on the panel is used for external communication. The interface LAN1 and LAN2 are Gigabit ports, and LAN3-LAN7 are 100M ports.

[0032] Power supply function: 1: The AC220 power base and switch are reserved outside the multi-function control box to introduce AC220V power. At the same time, the internal integrated power conversion module converts the power into DC 5-24V power. Part of it is used to power each conversion module, and part of it is led out to the outside through the terminal block to power external devices.

[0033] The above are only specific implementation methods of the present utility model, but the protection scope of the present utility model is not limited to this. Any modifications, equivalent substitutions and improvements made by any technician familiar with the technical field within the technical scope disclosed by the present utility model within the spirit and principles of the present utility model should be covered within the protection scope of the present utility model; ordinary technicians in this field can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be based on the scope defined by the claims.

Claims

1. A multifunctional communication test box, characterized in that: It includes a VGA interface and a PCB board, wherein the VGA interface is used for RS232 and RS485 communications; the PCB board is used to lead out a multi-channel integrated serial communication interface, which is led to the panel of the multi-functional communication test box through a terminal for external communication; the PCB board is integrated with an RS485 to USB module, so that RS485 communication is directly converted into USB communication mode, which is convenient for connecting to a PC for debugging; The multifunctional communication test box includes a CAN to USB interface module, which integrates the circuit through a PCB board, and leads the communication pins of CANL and CANH to the panel of the multifunctional communication test box, which is convenient for external wiring, so that CAN communication is directly converted into USB communication mode, which is convenient for connecting to a PC for debugging; The multifunctional communication test box also includes a network interface module for communication connection with a host computer. The network interface module realizes the integration of a switch through a communication integrated circuit, and fixes the RJ45 port on the panel of the multifunctional communication test box for external communication. The multifunctional communication test box is provided with an analog quantity control module, which is connected to an external device through the analog quantity control module, and feedback on the device status is performed by monitoring the electrical signal of the circuit.

2. A multifunctional communication test box according to claim 1, characterized in that: The multifunctional communication test box is provided with an AC power socket with a switch fuse, and the functional modules in the multifunctional communication test box are powered by external power supply.

3. A multifunctional communication test box according to claim 2, characterized in that: The AC power socket is connected to a power conversion module, so that the 220AC voltage can be converted into a safe DC voltage of DC5-24V, which is led to the panel of the multifunctional communication test box through the wiring terminals to realize power supply to external devices.

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