Mining remote control transmitter

Abstract

The utility model discloses a mining remote control emitter, and relates to the field of remote control emitters, and the mining remote control emitter comprises a core board card and an operation panel; the core board card comprises an MCU processing circuit and a radio frequency communication circuit. The MCU processing circuit is respectively connected with the operation panel and the radio frequency communication circuit; the operation panel is used for an operator to input an operation instruction; the operation instruction comprises a switch instruction, an emergency stop instruction and a rocker control instruction; the MCU processing circuit is used for converting the operation instruction into an electric signal; the radio frequency communication circuit is used for converting the electric signals into electromagnetic radiation signals and transmitting the electromagnetic radiation signals to the space where the mine is located, remote communication can be achieved, and the signals are not prone to being lost in the communication process.

Description

Technical Field

[0001] The present application relates to the field of remote control transmitters, and in particular to a remote control transmitter for mining. Background Art

[0002] Remote control transmitters are commonly used in industrial wireless control, wireless sensors, and wireless data acquisition systems, and are also in high demand in the mining sector. A wireless remote control system consists of two main components: a transmitter and a receiver. The operator uses the transmitter to send commands to mining equipment, such as forward, braking (or reverse), turning, and emergency stopping. These commands are converted into electromagnetic radiation signals and transmitted into space. The receiver on the mining equipment receives these electromagnetic radiation signals, converts them into control commands, and then converts these commands into mechanical actions, thus achieving remote control of the mining equipment.

[0003] In the mining field, the relevant remote control transmitters usually have limited communication distance, cannot achieve long-distance communication, and are prone to signal loss. Utility Model Content

[0004] The purpose of this application is to provide a remote control transmitter for mining, which can realize long-distance communication and is not prone to signal loss during communication.

[0005] To achieve the above objectives, this application provides the following solutions:

[0006] The present application provides a remote control transmitter for mining, comprising: a core board and an operation panel; the core board comprises: an MCU processing circuit and a radio frequency communication circuit;

[0007] The MCU processing circuit is connected to the operation panel and the radio frequency communication circuit respectively; the operation panel is used for the operator to input operation instructions; the operation instructions include: switch instructions, emergency stop instructions and joystick control instructions; the MCU processing circuit is used to convert the operation instructions into electrical signals; the radio frequency communication circuit is used to convert the electrical signals into electromagnetic radiation signals and transmit them into the space where the mine is located.

[0008] Optionally, the operation panel includes: a joystick and a joystick control board;

[0009] The joystick is connected to the joystick control board; the joystick control board is connected to the MCU processing circuit; the joystick is used for the operator to input the joystick control instructions; the joystick control board is used to collect the joystick control instructions and send the joystick control instructions to the MCU processing circuit.

[0010] Optionally, the operation panel includes: a switch button and a switch quantity board;

[0011] The switch button is connected to the switch board; the switch board is connected to the MCU processing circuit; the switch button is used for the operator to input the switch instruction; the switch board is used to collect the switch instruction and send the switch instruction to the MCU processing circuit.

[0012] Optionally, the operation panel includes: an emergency stop button and an emergency stop button board;

[0013] The emergency stop button is connected to the emergency stop button board; the emergency stop button board is connected to the MCU processing circuit; the emergency stop button is used for the operator to input the emergency stop command; the emergency stop button board is used to collect the emergency stop command and send the emergency stop command to the MCU processing circuit.

[0014] Optionally, the mine remote control transmitter further includes: a display module; the display module is connected to the MCU processing circuit;

[0015] A remote control receiver on mining equipment in the space where the mine is located receives the electromagnetic radiation signal and converts the electromagnetic radiation signal into a control command; the control command is used to control the mining equipment to complete corresponding mechanical actions; the remote control receiver is also used to collect control end information generated according to the mechanical action, and send the control end information to the MCU processing circuit through the radio frequency communication circuit; the display module is used to display the control end information.

[0016] Optionally, the mine remote control transmitter further includes: a power module; the power module is connected to the MCU processing circuit, the radio frequency communication circuit and the display module respectively;

[0017] The power module includes: a lithium battery, a first anti-reverse connection circuit, a first LDO voltage stabilizing circuit, a second anti-reverse connection circuit, an isolation module, a second LDO voltage stabilizing circuit, a third anti-reverse connection circuit, a DC-DC voltage stabilizing circuit, a reference voltage source and a third LDO voltage stabilizing circuit;

[0018] The positive electrode of the lithium battery is connected to the first anti-reverse connection circuit and the first LDO voltage regulator circuit in sequence; the negative electrode of the lithium battery is grounded; the output end of the first anti-reverse connection circuit is grounded; the output end of the first LDO voltage regulator circuit serves as a first output end; the first output end is used to output a 3.3V voltage to power the MCU processing circuit;

[0019] The positive electrode of the lithium battery is also connected to the second anti-reverse connection circuit, the isolation module, and the second LDO voltage regulator circuit in sequence; the output end of the second anti-reverse connection circuit and the output end of the isolation module are both grounded; the output end of the second LDO voltage regulator circuit serves as the second output end; the second output end is used to output a 3.3V voltage; the connection end between the isolation module and the second LDO voltage regulator circuit serves as the third output end; the third output end is used to output a 5V voltage; the second output end and the third output end power the radio frequency communication circuit;

[0020] The positive electrode of the lithium battery is also connected to the third anti-reverse connection circuit, the DC-DC voltage regulator circuit, and the reference voltage source in sequence; the output end of the third anti-reverse connection circuit is grounded; the connection end between the DC-DC voltage regulator circuit and the reference voltage source serves as a fourth output end; the fourth output end is used to output a 5V voltage; the input end of the third LDO voltage regulator circuit is connected to the fourth output end; the output end of the third LDO voltage regulator circuit serves as a fifth output end; the fifth output end is used to output a 3.3V voltage; the fourth output end and the fifth output end power the display module.

[0021] Optionally, the joystick control board is connected to the MCU processing circuit via a connector terminal.

[0022] Optionally, the switch button is an integrated silicone button.

[0023] Optionally, the radio frequency communication circuit uses a LORA chip.

[0024] According to the specific embodiments provided in this application, this application has the following technical effects:

[0025] The present application provides a remote control transmitter for mining, comprising: a core board and an operation panel; the core board comprises: an MCU processing circuit and a radio frequency communication circuit, the MCU processing circuit is connected to the operation panel and the radio frequency communication circuit respectively, and the radio frequency communication circuit is used for signal transmission, which can realize long-distance communication and is not prone to signal loss during the communication process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a structural diagram of a mine remote control transmitter in one embodiment of the present application;

[0028] Figure 2 A structural diagram of a mine remote control transmitter provided in another embodiment of the present application;

[0029] Figure 3 A structural diagram of a mine remote control transmitter provided in another embodiment of the present application;

[0030] Figure 4 A structural diagram of a power module provided in one embodiment of the present application;

[0031] Figure 5 A schematic diagram of a radio frequency communication circuit provided in one embodiment of the present application;

[0032] Figure 6 A flow chart of the communication process of a remote control transmitter provided in one embodiment of the present application;

[0033] Figure 7 A flowchart of basic configuration parameters and switch control handshake of the remote controller provided in one embodiment of the present application;

[0034] Figure 8 A specific workflow diagram of a display screen provided in one embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] In an exemplary embodiment, Figure 1 As shown, the present application provides a remote control transmitter for mining, including: a core board and an operation panel; the core board includes: an MCU processing circuit and a radio frequency communication circuit.

[0038] The MCU processing circuit is connected to the operation panel and the radio frequency communication circuit respectively; the operation panel is used for the operator to input operation instructions; the operation instructions include: switch instructions, emergency stop instructions and joystick control instructions; the MCU processing circuit is used to convert the operation instructions into electrical signals; the radio frequency communication circuit is used to convert the electrical signals into electromagnetic radiation signals and transmit them into the space where the mine is located.

[0039] In another exemplary embodiment of the present application, see Figure 2 The mine remote control transmitter further includes a display module connected to the MCU processing circuit. The display module may be an LCD display.

[0040] A remote control receiver on mining equipment in the space where the mine is located receives the electromagnetic radiation signal and converts the electromagnetic radiation signal into a control command; the control command is used to control the mining equipment to complete corresponding mechanical actions; the remote control receiver is also used to collect control end information generated according to the mechanical action, and send the control end information to the MCU processing circuit through the radio frequency communication circuit; the display module is used to display the control end information.

[0041] In another exemplary embodiment of the present application, see Figure 3 The operation panel includes: a joystick, a joystick control board, a switch button, a switch quantity board, an emergency stop button and an emergency stop button board.

[0042] The joystick is connected to the joystick control board; the joystick control board is connected to the MCU processing circuit; the joystick is used for the operator to input the joystick control instructions; the joystick control board is used to collect the joystick control instructions and send the joystick control instructions to the MCU processing circuit.

[0043] The switch button is connected to the switch board; the switch board is connected to the MCU processing circuit; the switch button is used for the operator to input the switch instruction; the switch board is used to collect the switch instruction and send the switch instruction to the MCU processing circuit.

[0044] The emergency stop button is connected to the emergency stop button board; the emergency stop button board is connected to the MCU processing circuit; the emergency stop button is used for the operator to input the emergency stop command; the emergency stop button board is used to collect the emergency stop command and send the emergency stop command to the MCU processing circuit.

[0045] This embodiment uses a radio frequency communication circuit to transmit signals, which can achieve long-distance communication and is less likely to lose signals during the communication process.

[0046] In another exemplary embodiment of the present application, see Figure 3The joystick control board, the switch board, and the emergency stop button board are all connected to the MCU processing circuit via connector terminals. The core board also includes: an emitter follower circuit, an inverter isolation circuit, and an optocoupler isolation circuit. Specifically, the joystick control board is connected to the emitter follower circuit via connector terminals, and the emitter follower circuit is connected to the MCU processing circuit; the switch board is connected to the inverter isolation circuit via connector terminals, and the inverter isolation circuit is connected to the MCU processing circuit; the emergency stop button board is connected to the optocoupler isolation circuit via connector terminals, and the optocoupler isolation circuit is connected to the MCU processing circuit.

[0047] The joystick control board is equipped with a Hall element that collects the joystick control instructions and converts them into voltage signals, which are then transmitted to the MCU processing circuit in the form of voltage signals. The emergency stop button board is also equipped with an emergency stop button state self-locking circuit that is used to maintain the emergency stop state self-locking after sending an emergency stop signal to the MCU processing circuit.

[0048] Figure 3 The multi-level isolation of the independent modules can filter out stray waves, spikes and burrs, ensuring the quality of the transmission signal and maintaining the normal and stable operation of the remote control.

[0049] The remote control transmitter of this embodiment adopts a control mode of combination button + joystick operation, which greatly saves space for structural layout. The whole device is compact and lightweight, and is easy to operate and carry.

[0050] In another exemplary embodiment of the present application, see Figure 2 The mining remote control transmitter further includes: a power supply module; the power supply module is respectively connected to the MCU processing circuit, the radio frequency communication circuit and the display module.

[0051] See also Figure 4 The power module includes: a lithium battery, a first reverse connection protection circuit, a first LDO voltage regulator circuit, a second reverse connection protection circuit, an isolation module, a second LDO voltage regulator circuit, a third reverse connection protection circuit, a DC-DC voltage regulator circuit, a reference voltage source, and a third LDO voltage regulator circuit. Two lithium batteries can be used.

[0052] The positive electrode of the lithium battery is connected to the first anti-reverse connection circuit and the first LDO voltage regulator circuit in sequence; the negative electrode of the lithium battery is grounded; the output end of the first anti-reverse connection circuit is grounded; the output end of the first LDO voltage regulator circuit serves as the first output end; the first output end is used to output a 3.3V voltage to power the MCU processing circuit.

[0053] The positive electrode of the lithium battery is also connected to the second anti-reverse connection circuit, the isolation module, and the second LDO voltage regulator circuit in sequence; the output end of the second anti-reverse connection circuit and the output end of the isolation module are both grounded; the output end of the second LDO voltage regulator circuit serves as the second output end; the second output end is used to output a 3.3V voltage; the connection end between the isolation module and the second LDO voltage regulator circuit serves as the third output end; the third output end is used to output a 5V voltage; the second output end and the third output end power the radio frequency communication circuit.

[0054] The positive electrode of the lithium battery is also connected to the third anti-reverse connection circuit, the DC-DC voltage regulator circuit, and the reference voltage source in sequence; the output end of the third anti-reverse connection circuit is grounded; the connection end between the DC-DC voltage regulator circuit and the reference voltage source serves as a fourth output end; the fourth output end is used to output a 5V voltage; the input end of the third LDO voltage regulator circuit is connected to the fourth output end; the output end of the third LDO voltage regulator circuit serves as a fifth output end; the fifth output end is used to output a 3.3V voltage; the fourth output end and the fifth output end power the display module.

[0055] The power module includes an anti-reverse connection circuit, an isolation circuit, and a clamping protection circuit to prevent reverse connection, improve battery utilization, and provide clamping protection for each switch-to-pin connection. The power module of this embodiment uses an anti-reverse connection circuit, which is a non-series unidirectional linear power element, reducing thermal power loss at the power supply end. Each stage has an anti-reverse connection circuit structure, providing effective anti-reverse connection protection.

[0056] Figure 3 The switch board, emergency stop button board, and core board are all powered by the first output terminal of the above-mentioned power module, the radio frequency communication circuit is powered by the second output terminal and the second output terminal of the above-mentioned power module, and the output terminal VREF of the reference voltage source in the power module provides a voltage reference source for the ADC built into the MCU processing circuit.

[0057] In another exemplary embodiment of the present application, the switch button and the emergency stop button are both integrated silicone buttons with good waterproof and dustproof effects.

[0058] In another exemplary embodiment of the present application, the radio frequency communication circuit adopts a LORA chip; the LORA chip can adopt a SX core processor of Sentech Corporation.

[0059] See also Figure 5The remote control transmitter and remote control receiver communicate by handshaking, converting the fixed frequency (433MHz) LoRa signal into a serial port signal. Inside the core board, the LoRa chip converts the LoRa signal into an SPI signal, which is then converted into serial port data by the MCU inside the module. The data is then sent to the MCU processing circuit through a differential impedance matching circuit (to reduce transmission impedance loss). The LoRa RF communication circuit supports an operating frequency band of 150–960MHz and has low power consumption and high performance, ensuring that the signal is not distorted even in harsh working conditions.

[0060] In another exemplary embodiment of the present application, the MCU processing circuit may adopt an STMicroelectronics F1 series core processor.

[0061] Conventional remote control transmitters have limited communication ranges and are prone to signal loss during handshake communications. The remote control transmitter of this embodiment has a longer communication range and is less susceptible to signal loss. Conventional remote control transmitters occupy a large space, are bulky and inflexible, and have poor waterproofing and dustproofing. The remote control transmitter of this embodiment occupies a small space and is easy to operate. Its buttons and other vulnerable and consumable components are waterproof and dustproof, making it easy to debug, maintain, install, and use. Conventional remote control transmitters have low effective battery power and poor reverse polarity protection. The remote control transmitter of this embodiment has high battery efficiency, low heat dissipation, and self-protection against reverse polarity.

[0062] In actual application, the communication process between the remote control transmitter and the remote control receiver is as follows: Figure 6 The remote control transmitter needs to be used in conjunction with the remote control receiver on the mining equipment. After the remote control transmitter is powered on, first complete the basic configuration of the system, the basic configuration of the serial port screen and the basic configuration of the LORA chip. Figure 7 After the remote control transmitter starts working, different control instructions are operated according to the switch quantity buttons. First, complete the basic configurations such as interrupts and timers. If the use scenario requires switching the display interface of the vehicle display, press the screen flip button. If the screen flip interface is not pressed, the voltage of the lithium battery of the remote control transmitter is tested. According to the actual use scenario, it is necessary to select whether the emergency stop button of the remote control transmitter is pressed. If the emergency stop button is pressed, the remote control transmitter sends an emergency stop signal to the remote control receiver on the mining equipment. After that, the emergency stop light of the remote control transmitter is always on, and the emergency stop state is self-locked. After the remote control receiver receives the emergency stop signal, the mining equipment stops running. After that, the operator's basic control operations (forward, backward, turn, etc.) are determined according to the different buttons and joysticks on the remote control transmitter's operation panel, and the control instructions are converted into radio signals to communicate and shake hands with the remote control receiver, and send control instructions to the remote control receiving device.

[0063] See also Figure 8After the remote control transmitter starts working, the MCU processing circuit on the core board of the remote control transmitter performs basic configuration of the remote control transmitter's display screen through the serial port (including display interface configuration and sending screen flipping operation command configuration to the remote control receiver). Combined with the usage scenario, it determines whether to perform screen flipping operation on the vehicle display screen. If the screen flipping operation is performed, it determines whether the vehicle display screen is one screen or two screens (displaying the reserved parameter interface). If the vehicle display screen is one screen, the remote control receiver sends parameter data (for example, butterfly valve, water level, driving speed, etc.) to the remote control transmitter. At the same time, the remote control transmitter receives and displays the control end information (for example, hydraulic oil temperature, hydraulic oil level, obstacle distance in all directions, etc.), and displays the parameters and status through the serial port screen.

[0064] Because operators often work in humid, wet, and dusty environments, most current remote control transmitters are inconvenient to carry, have poor waterproofing and dustproofing, are prone to accidental damage to buttons during operation, and are prone to signal loss during long-distance communications. To address these issues, the aforementioned embodiments provide a remote control transmitter for mining applications that addresses these technical issues. Specifically, the remote control incorporates a built-in wireless radio frequency communication circuit. This circuit utilizes the transmission characteristics of radio frequency signals and spatial coupling to achieve point-to-point handshake communication with the identified object (receiver), preventing signal loss during communication. The remote control's switch buttons and other features are dustproof and waterproof, featuring integrated silicone keys. They are fully sealed and waterproof to IP67, offering a long service life and are suitable for complex and harsh working conditions. The remote control features low thermal dissipation and internal reverse polarity protection circuitry, resulting in low operating power consumption and a long battery life. The remote control transmitter operates in the 433-928 MHz frequency band, with a 200 kHz channel spacing and a six-level adjustable air velocity, making it suitable for industrial control handshake communications in the complex, humid, and dusty conditions of underground mines.

[0065] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] This document uses specific examples to illustrate the principles and implementation methods of this application. The description of the above examples is only intended to help understand the method and core concept of this application. At the same time, for those skilled in the art, based on the concept of this application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. A remote control transmitter for mining, characterized in that: The mine remote control transmitter includes: a core board and an operation panel; the core board includes: an MCU processing circuit and a radio frequency communication circuit; The MCU processing circuit is connected to the operation panel and the radio frequency communication circuit respectively; the operation panel is used for the operator to input operation instructions; the operation instructions include: switch instructions, emergency stop instructions and joystick control instructions; the MCU processing circuit is used to convert the operation instructions into electrical signals; the radio frequency communication circuit is used to convert the electrical signals into electromagnetic radiation signals and transmit them into the space where the mine is located.

2. The mine remote control transmitter according to claim 1, characterized in that: The operation panel includes: a rocker and a rocker control board; The joystick is connected to the joystick control board; the joystick control board is connected to the MCU processing circuit; the joystick is used for the operator to input the joystick control instructions; the joystick control board is used to collect the joystick control instructions and send the joystick control instructions to the MCU processing circuit.

3. The mine remote control transmitter according to claim 1, characterized in that: The operation panel includes: a switch button and a switch quantity board; The switch button is connected to the switch board; the switch board is connected to the MCU processing circuit; the switch button is used for the operator to input the switch instruction; the switch board is used to collect the switch instruction and send the switch instruction to the MCU processing circuit.

4. The mine remote control transmitter according to claim 1, characterized in that: The operation panel includes: an emergency stop button and an emergency stop button board; The emergency stop button is connected to the emergency stop button board; the emergency stop button board is connected to the MCU processing circuit; the emergency stop button is used for the operator to input the emergency stop command; the emergency stop button board is used to collect the emergency stop command and send the emergency stop command to the MCU processing circuit.

5. The mine remote control transmitter according to claim 1, characterized in that: The mine remote control transmitter further includes: a display module; the display module is connected to the MCU processing circuit; A remote control receiver on mining equipment in the space where the mine is located receives the electromagnetic radiation signal and converts the electromagnetic radiation signal into a control command; the control command is used to control the mining equipment to complete corresponding mechanical actions; the remote control receiver is also used to collect control end information generated according to the mechanical action, and send the control end information to the MCU processing circuit through the radio frequency communication circuit; the display module is used to display the control end information.

6. The mine remote control transmitter according to claim 5, characterized in that: The mine remote control transmitter further includes: a power module; the power module is connected to the MCU processing circuit, the radio frequency communication circuit and the display module respectively; The power module includes: a lithium battery, a first anti-reverse connection circuit, a first LDO voltage stabilizing circuit, a second anti-reverse connection circuit, an isolation module, a second LDO voltage stabilizing circuit, a third anti-reverse connection circuit, a DC-DC voltage stabilizing circuit, a reference voltage source and a third LDO voltage stabilizing circuit; The positive electrode of the lithium battery is connected to the first anti-reverse connection circuit and the first LDO voltage regulator circuit in sequence; the negative electrode of the lithium battery is grounded; the output end of the first anti-reverse connection circuit is grounded; the output end of the first LDO voltage regulator circuit serves as a first output end; the first output end is used to output a 3.3V voltage to power the MCU processing circuit; The positive electrode of the lithium battery is also connected to the second anti-reverse connection circuit, the isolation module, and the second LDO voltage regulator circuit in sequence; the output end of the second anti-reverse connection circuit and the output end of the isolation module are both grounded; the output end of the second LDO voltage regulator circuit serves as the second output end; the second output end is used to output a 3.3V voltage; the connection end between the isolation module and the second LDO voltage regulator circuit serves as the third output end; the third output end is used to output a 5V voltage; the second output end and the third output end power the radio frequency communication circuit; The positive electrode of the lithium battery is also connected to the third anti-reverse connection circuit, the DC-DC voltage regulator circuit, and the reference voltage source in sequence; the output end of the third anti-reverse connection circuit is grounded; the connection end between the DC-DC voltage regulator circuit and the reference voltage source serves as a fourth output end; the fourth output end is used to output a 5V voltage; the input end of the third LDO voltage regulator circuit is connected to the fourth output end; the output end of the third LDO voltage regulator circuit serves as a fifth output end; the fifth output end is used to output a 3.3V voltage; the fourth output end and the fifth output end power the display module.

7. The mine remote control transmitter according to claim 2, characterized in that: The joystick control board is connected to the MCU processing circuit via a connector terminal.

8. The mine remote control transmitter according to claim 3, characterized in that: The switch button is an integrated silicone button.

9. The mine remote control transmitter according to claim 1, characterized in that: The radio frequency communication circuit adopts LORA chip.

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