Industrial wireless remote control system

Abstract

The invention relates to the technical field of industrial wireless remote controllers, in particular to an industrial wireless remote control system, which comprises a remote controller part and a receiver part, and is characterized in that the remote controller comprises a first wireless input module, a second wireless input module and a wireless output module; the first processor is communicated with the wireless input module and the wireless output module, processes the received signal and generates a corresponding control instruction; the human-computer interaction interface is connected with the first processor and is used for displaying the current operation state and related information, so that a user can intuitively know the state and the operation result of the equipment; the receiver part comprises a second wireless input module which is responsible for receiving a signal from the remote controller; the second processor is in communication connection with the wireless input module, processes the received signal and generates a corresponding control instruction; the system has the advantages that the anti-interference performance of the system is enhanced, and high-quality display experience is provided under the low-light condition.

Description

Technical Field

[0001] The invention relates to an industrial wireless remote control system, belonging to the technical field of industrial wireless remote controls. Background Art

[0002] Industrial wireless remote controls are widely used in heavy industrial fields that require remote control, including but not limited to industrial construction, mining, container terminals, warehousing, machinery manufacturing, chemicals, papermaking, and construction machinery. Specific application scenarios include: Cranes and cranes: used for lifting and moving heavy objects. Hydraulic cranes: lifting and moving heavy objects at construction sites or warehouses. Concrete pump trucks: transporting concrete on construction sites. Roller coasters: control systems in amusement facilities. Mining machinery: operating various mechanical equipment in mines. Overhead cranes: handling materials in factory workshops. Large cranes: loading and unloading goods at ports and docks. Dump trucks: transporting materials in mines and construction sites. Hoisting locomotives: used in railway and bridge construction. Cranes: lifting and moving heavy objects in a variety of situations.

[0003] For these applications, industrial wireless remote controls must have the following key performance indicators: High precision: ensure that control instructions are executed accurately and without error. High sensitivity: be able to respond quickly to user operations and provide instant feedback. Signal continuity: maintain stable signal transmission and avoid interruptions. Real-time control: ensure that control instructions can be received and executed within milliseconds. Strong anti-interference ability: be able to work normally in complex electromagnetic environments without interference from other wireless signals. Long-distance remote control: be able to effectively operate equipment at a long distance (such as hundreds of meters or even farther). Good operability: user-friendly interface, easy to operate, and reduce the possibility of misoperation. Multi-interface compatibility: be able to connect to multiple different types of device interfaces for flexible control. However, current industrial wireless remote controls cannot operate reliably in various complex and harsh working environments, have low work efficiency, and cannot ensure operational safety. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention aims to provide an industrial wireless remote control system to solve the problems raised in the above background technology.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solution: an industrial wireless remote control system, including a remote control part and a receiver part, the remote control includes: The first wireless input module is responsible for receiving the signal sent by the user through the remote control; The first processor communicates with the wireless input module and the wireless output module, processes the received signals and generates corresponding control instructions; Human-computer interaction interface: connected to the first processor, displaying the current operation status and related information, so that the user can intuitively understand the status of the device and the operation results; The receiver portion comprises: The second wireless input module: responsible for receiving signals from the remote control; The second processor is connected to the wireless input module for processing received signals and generating corresponding control instructions; Specifically, the first processor integrates: First CAN bus: used for high-speed and reliable communication with devices supporting the CAN protocol; First RS485 bus: provides long-distance, multi-point communication capabilities, suitable for data transmission in industrial environments; The first AD acquisition circuit is used to convert analog signals into digital signals so that the processor can process these data; The first IO input circuit provides a digital input interface for receiving a switch signal or a digital signal from an external device.

[0006] Specifically, the second processor integrates: Second CAN bus: used for high-speed and reliable communication with devices supporting CAN protocol; Second RS485 bus: provides long-distance, multi-point communication capabilities, suitable for data transmission in industrial environments; The second AD acquisition circuit is used to convert analog signals into digital signals so that the processor can process these data; The second IO input circuit provides a digital input interface for receiving a switch signal or a digital signal from an external device.

[0007] Specifically, the load interface of the second processor in the receiver part adopts a BTS724G switch chip.

[0008] Specifically, the first processor is a 32-bit ARMCortex-M4 STM32F407 processor, and the second processor is a 32-bit ARMCortex-M4 STM32F407 processor.

[0009] Specifically, the first CAN bus external interface and the second CAN bus external interface are both provided with an air release tube and a common mode choke anti-common mode interference module.

[0010] Specifically, the human-machine interaction interface of the remote control is an LCD screen, which is equipped with a dim LED indicator light to provide clear visual feedback in low-light conditions.

[0011] Specifically, the first wireless input module and the second wireless input module both adopt LoRa communication modules.

[0012] Specifically, the remote controller and the receiver are both equipped with the FREEROTS operating system.

[0013] Beneficial effects of the present invention: 1. The first wireless input module and the second wireless input module use LoRa communication technology, and the first processor and the second processor use high-performance 32-bit ARM Cortex-M4 STM32F407 processors. This combination ensures that the remote control has a long operating distance, real-time response and excellent processing capabilities.

[0014] 2. The first RS485 bus and the second RS485 bus parts use modules that can resist bus interference and communication anomalies, and are equipped with air release tubes and common-mode choke anti-common-mode interference modules and other protective devices at the external interfaces of the first RS485 bus and the second RS485 bus to enhance the anti-interference performance of the system.

[0015] 3. In order to provide a high-quality display experience under low-light conditions, the system utilizes the diffuse reflection principle of the light guide to achieve low-light LED indication, ensuring that users can clearly see the text on the display even in dim light conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 This is a schematic diagram of the remote control part of an industrial wireless remote control system of the present invention; Figure 2 This is a schematic diagram of the receiver part of an industrial wireless remote control system of the present invention; Figure 3 A circuit diagram of a 32-bit ARMCortex-M4 STM32F407 processor of an industrial wireless remote control system of the present invention; Figure 4 A first CAN bus and a first CAN bus circuit diagram of an industrial wireless remote control system of the present invention; Figure 5 A circuit diagram of a first RS485 bus and a second RS485 bus of an industrial wireless remote control system of the present invention; Figure 6 This is a schematic diagram of the dim LED indication principle of an industrial wireless remote control system of the present invention; Figure 7 The present invention is an operating system block diagram of an industrial wireless remote control system.

[0017] In the picture: 1. Diffuse reflected light, 2. Light guide column, 3. Frosted surface, 4. LED light source. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] See also Figure 1-Figure 7 The present invention provides a technical solution: an industrial wireless remote control system, comprising a remote control part and a receiver part, the remote control comprising: a first wireless input module: responsible for receiving a signal sent by a user through the remote control; the first wireless input module adopts a LoRa communication module; a first processor: communicating with the wireless input module and the wireless output module, processing the received signal and generating corresponding control instructions; the first processor is a 32-bit ARMCortex-M4STM32F407 processor, a human-computer interaction interface: connected to the first processor, displaying the current operation status and related information, so that the user can intuitively understand the status and operation results of the device; the human-computer interaction interface of the remote control is an LCD screen, the LCD screen is equipped with a dim LED indicator light, which is used to provide clear visual feedback under low light conditions, the dim LED indicator light adopts the principle of diffuse reflection of a light guide body, a light guide column 2 is added with an LED light strip, and one side of the light guide column 2 is frosted, the LED light strip emits light, and irradiates the light guide column 2, the light passes through the light guide column 2, and is transmitted through the frosted surface of the light guide column 2 to form a uniform light source, which fills the panel mask font with light.

[0020] The first processor integrates: a first CAN bus: used for high-speed and reliable communication with devices supporting the CAN protocol; a first RS485 bus: providing long-distance, multi-point communication capabilities, suitable for data transmission in industrial environments; a first AD acquisition circuit: used to convert analog signals into digital signals so that the processor can process these data; a first IO input circuit: providing a digital input interface for receiving switch signals or digital signals from external devices. The first CAN bus external interface is provided with an air release tube and a common-mode choke anti-common-mode interference module.

[0021] The receiver part includes: a second wireless input module: responsible for receiving signals from the remote control; the second wireless input module adopts a LoRa communication module; a second processor: communicates with the wireless input module, processes the received signals and generates corresponding control instructions; the second processor is a 32-bit ARMCortex-M4 STM32F407 processor; the load interface of the second processor in the receiver part adopts a BTS724G switch chip.

[0022] The second processor integrates: the second CAN bus: used for high-speed and reliable communication with devices supporting the CAN protocol; the second CAN bus external interface is equipped with an air release tube and a common-mode choke anti-common-mode interference module; the second RS485 bus: provides long-distance, multi-point communication capabilities, suitable for data transmission in industrial environments; the second AD acquisition circuit: used to convert analog signals into digital signals so that the processor can process these data; the second IO input circuit: provides a digital input interface for receiving switch signals or digital signals from external devices.

[0023] The first wireless input module and the second wireless input module adopt LoRa communication technology, while the first processor and the second processor use high-performance 32-bit ARM Cortex-M4 STM32F407 processors. This combination ensures that the remote control has a long operating distance, real-time response and excellent processing capabilities. The first RS485 bus and the second RS485 bus parts use modules that can resist bus interference and communication anomalies, and the external interfaces of the first RS485 bus and the second RS485 bus are equipped with air release tubes and common-mode choke anti-common-mode interference modules and other protection devices to enhance the anti-interference performance of the system. In order to provide a high-quality display experience under low-light conditions, the system uses the diffuse reflection principle of the light guide to realize the dim LED indication, ensuring that even in dim light conditions, users can clearly see the text on the display.

[0024] As a mature and stable Internet of Things technology, LoRa communication module has the technical characteristics of low power consumption, long transmission distance, strong penetration, flexible networking, and easy deployment. The 32-bit ARMCortex-M4 STM32F407 processor has an operating frequency of 168MHZ, up to 15 external communications, and up to 17 timers, which fully meet the real-time requirements of wireless remote controls and drive a variety of interface devices. The RS485 bus uses modules that are resistant to bus interference and communication anomalies. The BTS724G chip is a high-side switch driver designed for N-channel vertical power MOSFET tubes. Under high-side conditions, it can drive MOSFET power tubes with a load voltage of 24V. BTS724G has input CMOS compatibility, high electromagnetic compatibility, fast demagnetization of inductive loads, and a wide operating voltage range of 5.5V to 40V, which meets the needs of driving 12V or 24V solenoid valves.

[0025] Both the remote control and the receiver are equipped with the FREEROTS operating system, which uses the FREEROTS operating system as the main body of the application. Each external event is a task to achieve multi-task parallel operation. As a lightweight operating system, it has task management module, time management module, semaphore module, message queue module, memory management module, recording function module, software timer module, coroutine module, etc. The functions include: task management, time management, semaphore, message queue, memory management, recording function, software timer, coroutine, etc., which can basically meet the needs of smaller systems. External input devices such as joysticks and toggle switches are used as parallel tasks and run in parallel in the operating system. The LCD screen display is also used as a separate task to respond to real-time data display, which solves the problem of real-time response to multiple events and meets the requirements of real-time response of the remote control.

[0026] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An industrial wireless remote control system, comprising a remote control part and a receiver part, characterized in that: The remote controller comprises: The first wireless input module is responsible for receiving the signal sent by the user through the remote control; The first processor communicates with the wireless input module and the wireless output module, processes the received signals and generates corresponding control instructions; Human-computer interaction interface: connected to the first processor, displaying the current operation status and related information, so that the user can intuitively understand the status of the device and the operation results; The receiver portion comprises: The second wireless input module: responsible for receiving signals from the remote control; The second processor is connected to the wireless input module for communication, processing received signals and generating corresponding control instructions.

2. An industrial wireless remote control system according to claim 1, characterized in that: The first processor integrates: First CAN bus: used for high-speed and reliable communication with devices supporting the CAN protocol; First RS485 bus: provides long-distance, multi-point communication capabilities, suitable for data transmission in industrial environments; The first AD acquisition circuit is used to convert analog signals into digital signals so that the processor can process these data; The first IO input circuit provides a digital input interface for receiving a switch signal or a digital signal from an external device.

3. An industrial wireless remote control system according to claim 1, characterized in that:

2. The second processor integrates: Second CAN bus: used for high-speed and reliable communication with devices supporting CAN protocol; Second RS485 bus: provides long-distance, multi-point communication capabilities, suitable for data transmission in industrial environments; The second AD acquisition circuit is used to convert analog signals into digital signals so that the processor can process these data; The second IO input circuit provides a digital input interface for receiving a switch signal or a digital signal from an external device.

4. An industrial wireless remote control system according to claim 1, characterized in that: The load interface of the second processor in the receiver part adopts a BTS724G switch chip.

5. The industrial wireless remote control system according to claim 1, characterized in that: The first processor is a 32-bit ARMCortex-M4 STM32F407 processor, and the second processor is a 32-bit ARMCortex-M4 STM32F407 processor.

6. An industrial wireless remote control system according to claim 1, characterized in that: The first CAN bus external interface and the second CAN bus external interface are both provided with an air release tube and a common mode choke anti-common mode interference module.

7. An industrial wireless remote control system according to claim 1, characterized in that: The remote control's human-machine interface is an LCD screen, which is equipped with a dim LED indicator to provide clear visual feedback in low-light conditions.

8. An industrial wireless remote control system according to claim 1, characterized in that: The first wireless input module and the second wireless input module both adopt LoRa communication modules.

9. An industrial wireless remote control system according to claim 1, characterized in that: Both the remote control and the receiver are equipped with the FREEROTS operating system.

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