Portable explosion-proof control terminal based on Mbus

Abstract

The utility model discloses a portable explosion-proof control terminal based on an Mbus, the control terminal comprises a box body, a control module, an operation module, a communication module and a display module, the control module and the communication module are located in the box body, and the operation module and the display module are located on the surface of the box body; the control module is connected with an external terminal through the communication module and controls the operation module to act, the states of the external terminal and the control terminal are displayed through the display module, and the problems that in the prior art, a portable control terminal is large in power, and intrinsic safety design is difficult to carry out are solved. According to the characteristic that the Mbus can realize power supply and communication, the intrinsic safety design of the portable explosion-proof control terminal is carried out through the limited power design of the portable control terminal.

Description

Technical Field

[0001] This application relates to the field of industrial production control, and in particular to a portable explosion-proof control terminal based on the Mbus bus. Background Technology

[0002] In current industrial production and special operations, human-machine collaborative work is becoming increasingly widespread. It's common for operators to use portable control terminals to perform real-time operations based on on-site conditions, and this is also prevalent in explosion-proof areas. Existing technologies include a portable handheld control box for underwater robots, which uses RS485 / 422 bus transmission and has a screen display. However, it has high power consumption and cannot be used in explosion-proof work areas. Another example is a CNC punching machine handheld control box, which uses pulse signal transmission, has low power consumption, and is easy to design, but has poor compatibility and can only be used with specific equipment. A portable handheld control terminal for drones is also provided, which uses an antenna to transmit portable device operation signals. However, it has poor signal interference resistance and high power consumption in complex electromagnetic environments, and has high environmental requirements, making it unsuitable for use in explosion-proof areas. In existing technologies, industrial field control systems typically use various communication protocols and hardware interfaces to achieve data exchange and command transmission between devices. However, these systems often have limitations, such as insufficient safety, compatibility issues, low reliability, and maintenance difficulties. Especially in explosion-proof areas, where intrinsically safe equipment is required, even higher demands are placed on the safety performance of the equipment. Therefore, improving the safety of explosion-proof control terminals is a pressing technical problem that needs to be solved. Utility Model Content

[0003] The purpose of this utility model is to provide a portable explosion-proof control terminal based on the Mbus bus, as detailed below:

[0004] This utility model embodiment provides a portable explosion-proof control terminal based on the Mbus bus. The control terminal includes: a housing, a control module, an operation module, a communication module, and a display module. The control module and the communication module are located inside the housing, and the operation module and the display module are located on the surface of the housing. The control module is connected to an external terminal through the communication module and controls the operation module. The display module displays the status of the external terminal and the control terminal.

[0005] Furthermore, the operation module includes a horizontal single-axis joystick and a vertical single-axis joystick. The horizontal single-axis joystick is used to provide continuous horizontal operation commands to the external terminal; the vertical single-axis joystick is used to provide continuous vertical operation commands to the external terminal.

[0006] Furthermore, the horizontal single-axis joystick and the vertical single-axis joystick are potentiometer-type joysticks.

[0007] Optionally, the control module includes at least a processor, an arithmetic logic unit (ALU), a current limiting circuit, and a voltage regulator, wherein the processor is connected to the current limiting circuit and the ALU, the current limiting circuit is connected to the voltage regulator, and the current limiting circuit is connected to the display module and the operation module.

[0008] Optionally, the processor is a QJ32F103CBT6 microcontroller.

[0009] Optionally, the current limiting circuit includes a Zener diode and a resistor.

[0010] Optionally, the communication module is an Mbus protocol module.

[0011] Optionally, the display module includes at least a working status indicator, a power indicator, and a device status indicator, which are respectively connected to the control module. The working status indicator, power indicator, and device status indicator are located on the surface of the housing, wherein:

[0012] The working status indicator light is used to display the status of the portable operating terminal device;

[0013] The power indicator light is used to display the power status of the portable operating terminal.

[0014] The device status indicator light is used to display the device status connected to the portable operating terminal.

[0015] Optionally, the control terminal further includes a device control switch, which is a toggle switch used to control the external terminal.

[0016] Optionally, the control terminal further includes an emergency stop switch, which is a mushroom-shaped emergency stop switch used to stop the external terminal suddenly.

[0017] Compared with existing portable operating terminals, the portable explosion-proof control terminal based on the Mbus bus provided by this utility model has the following advantages: It provides a portable control terminal based on the Mbus bus that can be applied to explosion areas. Taking into account compatibility, reliability, and implementation difficulty, Mbus is selected as the communication form between the portable control terminal and the connected device. Through power limiting design, intrinsically safe circuit design is achieved. It can be operated by hand by personnel in industrial sites in explosion areas. Communication between the control terminal and the connected device is realized through the Mbus bus. It has good compatibility and can complete the status detection and control of multiple devices through a unified electrical hardware interface and an adapted software interface protocol. It enables on-site operators to operate industrial field equipment in explosion areas, improves the human-machine collaboration efficiency of industrial field production operations, and achieves high-reliability on-site operation in complex production environments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the portable explosion-proof control terminal based on the Mbus bus in this application;

[0019] Figure 2 This is a diagram showing the components of the portable explosion-proof control terminal in this application;

[0020] Figure 3 This is the electrical schematic diagram of the portable explosion-proof control terminal in this application;

[0021] Figure 4 This is the electrical schematic diagram of the Mbus power limiting board in this application. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings:

[0023] like Figure 1 As shown, the portable explosion-proof control terminal based on the Mbus bus in this embodiment includes: a housing 105, a control module 102, an operation module 101, a communication module 104, and a display module 103. The control module 102 and the communication module 104 are located inside the housing 105, while the operation module 101 and the display module 103 are located on the surface of the housing 105. The control module 102 is connected to an external terminal through the communication module 104 and controls the operation module 101 to perform actions. The display module 103 displays the status of the external terminal and the control terminal.

[0024] like Figure 2As shown, this utility model relates to a portable explosion-proof control terminal based on the Mbus bus, used for status monitoring and control of production equipment in industrial sites. The control terminal includes: a horizontal single-axis joystick [1], a vertical single-axis joystick [2], a housing 105, an Mbus power limiting circuit board [4], a working status indicator [5], a power indicator [6], an equipment status indicator [7], an equipment control switch [8], an emergency stop switch [9], and a cable assembly

[10] .

[0025] The housing is made of fiberglass composite material, providing a mounting surface for devices such as the Mbus power-limiting circuit board and joysticks. Hollow areas are set on both sides to accommodate two joysticks, and the design features an arc-shaped handle for the operator to hold.

[0026] Furthermore, the operation module includes a horizontal single-axis joystick and a vertical single-axis joystick. The horizontal single-axis joystick is used to provide continuous horizontal operation commands to the external terminal; the vertical single-axis joystick is used to provide continuous vertical operation commands to the external terminal.

[0027] Furthermore, the horizontal single-axis joystick and the vertical single-axis joystick are potentiometer-type joysticks.

[0028] The horizontal single-axis joystick, using a potentiometer-type joystick, provides continuous horizontal operating commands to devices connected to the control terminal.

[0029] The longitudinal single-axis joystick, using a potentiometer-type joystick, provides continuous longitudinal operating commands to equipment connected to the control terminal.

[0030] The control terminal is box-shaped, with two hollowed-out spaces to accommodate joystick operation, providing a hand handle. During use, the user holds the handle with four fingers of both hands and operates the joystick with their thumb to perform relevant operations.

[0031] Optionally, the control module includes at least a processor, an arithmetic logic unit (ALU), a current limiting circuit, and a voltage regulator. The processor is connected to the current limiting circuit and the ALU, the current limiting circuit is connected to the voltage regulator, and the current limiting circuit is connected to the display module and the operation module.

[0032] Optionally, the processor is a QJ32F103CBT6 microcontroller.

[0033] Optionally, the current limiting circuit includes a Zener diode and a resistor.

[0034] Optionally, the communication module is an Mbus protocol module.

[0035] like Figure 3 and Figure 4As shown, the control module, or Mbus power limiting board, includes a QJ32F103CBT6 microcontroller, an FX2340GF(Z) operational amplifier, a voltage regulator module, a current limiting circuit, and an arithmetic circuit. The Mbus power limiting board receives Mbus signals from connected devices and collects information from joysticks, switches, etc., enabling power supply to the portable control terminal and communication with connected devices. It uses resistors to limit power, thereby limiting the operating current and ensuring intrinsic safety. M-Bus, short for Meter-Bus, is a bus architecture specifically designed for utility meters, a data bus standard for transmitting information from measuring instruments and counters. This bus architecture is particularly suitable for remote meter reading systems, featuring high reliability, high-speed transmission, and low cost. The M-Bus bus uses a two-wire system with no polarity requirements, offering flexible wiring without the need for a specific topology, making it ideal for home electronics systems and industrial automation.

[0036] After the connected device (i.e., the external terminal) is connected to the portable control terminal, the connected device supplies power to the terminal via the Mbus bus and realizes information exchange. The connected device processes its own status into Mbus messages and sends them to the control terminal. The control terminal collects the bus signals sent by Mbus, processes them, and outputs them to the device status indicator lights on the control terminal panel. The status of the connected device is displayed through different states such as on, off, and flashing. After the on-site operator completes the connection between the portable control terminal and the connected device, he / she can use the portable control terminal to turn the toggle switch or press the horizontal / vertical joystick to control the connected device.

[0037] Optionally, the display module includes at least a working status indicator, a power indicator, and a device status indicator. These indicators are connected to the control module and are located on the surface of the housing.

[0038] The status indicator light is used to display the status of the portable operating terminal device;

[0039] The power indicator light is used to display the power status of the portable operating terminal;

[0040] The device status indicator light is used to display the status of the device connected to the portable operating terminal.

[0041] Optionally, the control terminal also includes a device control switch, which is a toggle switch used to control external terminals.

[0042] Optionally, the control terminal also includes an emergency stop switch, which is a mushroom-shaped emergency stop switch used to stop external terminals in an emergency.

[0043] Specifically, the working status indicator light uses LEDs to display the status of the portable operating terminal device;

[0044] Power indicator light: Uses LED lights to display the power status of the portable operating terminal;

[0045] Device status indicator lights: LED lights are used to display the device status connected to the portable operating terminal;

[0046] Equipment control switch: A toggle switch is used to control the equipment connected to the portable operating terminal;

[0047] Emergency stop switch: A mushroom-shaped emergency stop switch is used for emergency stopping of equipment connected to a portable operating terminal;

[0048] Cable assembly: uses spring cable for connecting portable control terminal and connection equipment.

[0049] The main purpose of this invention is to provide operators in explosion zones with a safe, reliable, portable, and easy-to-use device for monitoring and controlling industrial field equipment, such as electrically driven or hydraulically powered equipment. The primary objective is to provide a highly compatible interface that can meet the needs of multiple device status monitoring and control in industrial settings. The problems addressed are:

[0050] To address the problem that existing portable control terminals have high power consumption, making intrinsic safety design difficult, an intrinsic safety design for a portable explosion-proof control terminal is achieved by limiting the power consumption of the portable control terminal, based on the characteristics of the Mbus bus that enables both power supply and communication.

[0051] To address the challenge of universality in existing hardware circuits, a processing chip is integrated into the control terminal. This chip enables compatibility design using the widely adopted Mbus communication format in the instrumentation field. By confirming and editing the interface protocol, the status detection and control of different devices can be achieved.

[0052] Compared with existing portable operating terminals, the portable explosion-proof control terminal based on the Mbus bus provided by this utility model has the following advantages: It provides a portable control terminal based on the Mbus bus that can be applied to explosion areas. Taking into account compatibility, reliability, and implementation difficulty, Mbus is selected as the communication form between the portable control terminal and the connected device. Through power limiting design, intrinsically safe circuit design is achieved. It can be operated by hand by personnel in industrial sites in explosion areas. Communication between the control terminal and the connected device is realized through the Mbus bus. It has good compatibility and can complete the status detection and control of multiple devices through a unified electrical hardware interface and an adapted software interface protocol. It enables on-site operators to operate industrial field equipment in explosion areas, improves the human-machine collaboration efficiency of industrial field production operations, and achieves high-reliability on-site operation in complex production environments.

[0053] Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks.

[0054] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A portable explosion-proof control terminal based on the Mbus bus, characterized in that, The control terminal includes: a housing, a control module, an operation module, a communication module, and a display module, wherein the control module and the communication module are located inside the housing, and the operation module and the display module are located on the surface of the housing; The control module is connected to an external terminal through the communication module and controls the operation module to perform actions. The display module displays the status of the external terminal and the control terminal.

2. The portable explosion-proof control terminal based on the Mbus bus according to claim 1, characterized in that, The operation module includes a horizontal single-axis joystick and a vertical single-axis joystick. The horizontal single-axis joystick is used to provide continuous horizontal operation commands to the external terminal; the vertical single-axis joystick is used to provide continuous vertical operation commands to the external terminal.

3. A portable explosion-proof control terminal based on the Mbus bus according to claim 2, characterized in that, The horizontal single-axis joystick and the vertical single-axis joystick are potentiometer-type joysticks.

4. A portable explosion-proof control terminal based on the Mbus bus according to claim 1, characterized in that, The control module includes at least a processor, an arithmetic unit, a current limiting circuit, and a voltage regulator. The processor is connected to the current limiting circuit and the arithmetic unit, the current limiting circuit is connected to the voltage regulator, and the current limiting circuit is connected to the display module and the operation module.

5. A portable explosion-proof control terminal based on the Mbus bus according to claim 4, characterized in that, The processor is a QJ32F103CBT6 microcontroller.

6. A portable explosion-proof control terminal based on the Mbus bus according to claim 4, characterized in that, The current limiting circuit includes a Zener diode and a resistor.

7. A portable explosion-proof control terminal based on the Mbus bus according to claim 1, characterized in that, The communication module is an Mbus protocol module.

8. A portable explosion-proof control terminal based on the Mbus bus according to claim 1, characterized in that, The display module includes at least a working status indicator, a power indicator, and a device status indicator. These indicators are connected to the control module and are located on the surface of the housing. The working status indicator light is used to display the status of the portable operating terminal device; The power indicator light is used to display the power status of the portable operating terminal. The device status indicator light is used to display the device status connected to the portable operating terminal.

9. A portable explosion-proof control terminal based on the Mbus bus according to claim 1, characterized in that, The control terminal also includes a device control switch, which is a toggle switch used to control the external terminal.

10. A portable explosion-proof control terminal based on the Mbus bus according to claim 1, characterized in that, The control terminal also includes an emergency stop switch, which is a mushroom-shaped emergency stop switch used to stop the external terminal suddenly.

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