Console control board integrating Ethernet and RS422 communication

Abstract

The utility model discloses a console control panel integrating Ethernet and RS422 communication, which comprises a control terminal, a control key is arranged on the control terminal, an accelerator control key, a brake control key, a left-right steering control key and a pitch angle control key are arranged on control handles on two sides of the control terminal, and a control panel is arranged in the control terminal. The control panel comprises a single-chip microcomputer minimum system, a power management module, a path of Ethernet module, a path of RS422 bus module and an acquisition unit, the output end of the power management module is connected with the power input end of the single-chip microcomputer minimum system, and the input end of the acquisition unit is connected with the key output end of the control terminal. The output end of the acquisition unit is connected with the input end of the single-chip microcomputer minimum system, and the output end of the single-chip microcomputer minimum system is electrically connected with the Ethernet module and the RS422 bus module. According to the utility model, two communication modes of Ethernet and RS422 communication are adopted, and the system has the advantages of high data transmission rate, strong anti-interference capability and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle control, and more specifically to a console control board integrating Ethernet and RS422 communications. Background Art

[0002] At present, the console control boards on the market mainly use RS232 communication and one-way horizontal sensor signals to achieve vehicle control. However, the existing console control boards have the following disadvantages in the actual control of vehicles: 1) The RS232 communication interface uses a propagation form of one signal line, one signal return line, and a common ground, which is prone to common-mode interference and has poor anti-interference ability; 2) RS232 communication can only achieve point-to-point communication, cannot meet the requirements of complex network topologies, and requires specific lines and signal lines to be configured, making installation and maintenance relatively complex; 3) One-way horizontal sensors can only provide signals in the horizontal direction and can only provide control in one direction for the command platform, with relatively single functions and low integration. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a console control board integrating Ethernet and RS422 communications, which can improve the speed of data transmission and has a more flexible network topology structure.

[0004] To solve the above technical problems, the following technical solutions are adopted in the utility model.

[0005] A console control board integrating Ethernet and RS422 communications includes a control terminal. There are control buttons on the control terminal. On the control handles on both sides of the control terminal, there are respectively an accelerator control button, a brake control button, left and right steering control buttons, and a pitch angle control button for controlling vehicle actions. Inside the control terminal, there is a control board for controlling vehicle actions according to control instructions. The output ends of the control buttons, accelerator control button, brake control button, left and right steering control buttons, and pitch angle control button are respectively connected to the input end of the control board; the control board includes a minimum single-chip microcomputer system for sending control signals according to the control instructions issued by the control terminal, a power management module for providing a power supply, a one-way Ethernet module for performing Ethernet communication with the controlled vehicle, a one-way RS422 bus module for performing RS422 bus communication with the controlled vehicle, and a collection unit for collecting the control instructions issued by the control terminal. The output end of the power management module is connected to the power input end of the minimum single-chip microcomputer system. The input end of the collection unit is connected to the output end of the buttons on the control terminal, and the output end of the collection unit is connected to the input end of the minimum single-chip microcomputer system. The output end of the minimum single-chip microcomputer system is electrically connected to the one-way Ethernet module and the one-way RS422 bus module respectively.

[0006] Further optimize the technical solution. Force - sensitive sensors for collecting the throttle and brake forces are provided inside both the throttle control key and the brake control key. Angle sensors for collecting the steering angle and pitch angle are provided inside both the left - right steering control key and the pitch - angle control key. The output ends of the force - sensitive sensors and the angle sensors are respectively connected to the input ends of the control board.

[0007] Further optimize the technical solution. The acquisition unit includes a left - right steering and pitch - angle sensor module for collecting data of the angle sensors, a throttle - brake sensor module for collecting data of the brake and throttle sensors, a 2 - channel force - sensitive sensor module for collecting data of the force - sensitive sensors, and a 27 - channel digital input module for realizing the acquisition of digital signals. The input end of the left - right steering and pitch - angle sensor module is connected to the output end of the angle sensor. The input ends of the throttle - brake sensor module are respectively connected to the output ends of the throttle control key and the brake control key. The input ends of the 2 - channel force - sensitive sensor module are connected to the output ends of the force - sensitive sensors. The input ends of the 27 - channel digital input module are connected to the output ends of the control keys. The output ends of the left - right steering and pitch - angle sensor module, the throttle - brake sensor module, the 2 - channel force - sensitive sensor module, and the 27 - channel digital input module are respectively connected to the input ends of the minimum - system single - chip microcomputer.

[0008] Further optimize the technical solution. The minimum - system single - chip microcomputer includes a control chip, a crystal - oscillator circuit, and a reset circuit. The control chip is electrically connected to the crystal - oscillator circuit and the reset circuit respectively.

[0009] Further optimize the technical solution. The power - management module includes a conversion module for converting the 24V power supply into 5V and a step - down and filtering module for converting the 5V power supply into 3.3V power supply and filtering the power signal. The output end of the conversion module is connected to the input end of the step - down and filtering module. The output end of the step - down and filtering module is connected to the power - input end of the minimum - system single - chip microcomputer.

[0010] Due to the adoption of the above - mentioned technical solutions, the technical progress achieved by the present utility model is as follows.

[0011] A console control board integrating Ethernet and RS422 communications provided by the present utility model adopts two communication methods, Ethernet and RS422 communications, and has the advantages of high data - transmission rate, flexible network - topology structure, strong anti - interference ability, etc. It can also maintain a high transmission quality in an environment with long - distance transmission and more noise interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the present utility model;

[0013] Figure 2 is a principle block diagram of the control board of the present utility model;

[0014] Figure 3 This is the circuit diagram of the minimum system of the single-chip microcomputer of the present utility model;

[0015] Figure 4 This is the circuit diagram of the conversion module in the power management module of the present utility model;

[0016] Figure 5 This is the circuit diagram of the step-down and filtering module in the power management module of the present utility model;

[0017] Figure 6 This is the circuit diagram of the 1-way Ethernet module of the present utility model;

[0018] Figure 7 This is the circuit diagram of the 1-way RS422 module of the present utility model;

[0019] Figure 8 This is the circuit diagram of the 1-way left-right steering and pitch angle sensor module of the present utility model;

[0020] Figure 9 This is the circuit diagram of the 1-way brake and throttle sensor module of the present utility model;

[0021] Figure 10 This is the circuit diagram of the force-sensitive sensor module of the present utility model;

[0022] Figure 11 This is the circuit diagram of the 27-way digital input / output module of the present utility model.

[0023] Among them: 1. Control terminal, 2. Control buttons, 3. Throttle control button, 4. Brake control button, 5. Left-right steering control button, 6. Pitch angle control button. Specific embodiments

[0024] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] An operating console control board integrating Ethernet and RS422 communications, combined with Figure 1 As shown, it includes a control terminal 1. There are control buttons 2 on the control terminal 1. On the control handles on both sides of the control terminal 1, there are a throttle control button 3, a brake control button 4, a left-right steering control button 5, and a pitch angle control button 6, which are used to control the vehicle's actions. Inside the control terminal 1, there is a control board, which is used to control the vehicle's actions according to the control instructions. The output ends of the control buttons, throttle control button, brake control button, left-right steering control button, and pitch angle control button are respectively connected to the input end of the control board.

[0026] Force - sensitive sensors are installed inside both the throttle control key 3 and the brake control key 4 to collect the throttle and brake forces. Angle sensors are installed inside both the left - right steering control key 5 and the pitch - angle control key 5 to collect the steering angle and the pitch angle. The output ends of the force - sensitive sensors and the angle sensors are respectively connected to the input end of the control board.

[0027] The principle block diagram of the control board is as Figure 2 shown, and it includes a minimum single - chip microcomputer system, a power management module, a 1 - way Ethernet module, a 1 - way RS422 bus module, and an acquisition unit. The output end of the power management module is connected to the power input end of the minimum single - chip microcomputer system. The input end of the acquisition unit is connected to the output end of the keys on the control terminal, and the output end of the acquisition unit is connected to the input end of the minimum single - chip microcomputer system. The output end of the minimum single - chip microcomputer system is electrically connected to a 1 - way Ethernet module and a 1 - way RS422 bus module respectively.

[0028] The minimum single - chip microcomputer system issues control signals according to the control instructions sent by the control terminal. The minimum single - chip microcomputer system includes a control chip, a crystal - oscillator circuit, and a reset circuit. The control chip is electrically connected to the crystal - oscillator circuit and the reset circuit respectively. The circuit diagram of the minimum single - chip microcomputer system is as Figure 3 shown.

[0029] The power management module is used to provide a power supply. The power - supply module includes a conversion module and a step - down filtering module. The conversion module is used to convert the 24V power supply into 5V to supply power to the control board, and the step - down filtering module is used to convert the 5V power supply into 3.3V and filter the power signal. The output end of the conversion module is connected to the input end of the filtering module, and the output end of the filtering module is connected to the power input end of the minimum single - chip microcomputer system. The circuit diagrams of the conversion module and the filtering module are respectively as Figure 4 and Figure 5 shown. The conversion module converts 24V into 5V, and the step - down filtering module then converts the 5V power supply into 3.3V to supply power to the control chip.

[0030] The 1 - way Ethernet module is used to conduct Ethernet communication with the controlled vehicle. The circuit diagram of the 1 - way Ethernet module is as Figure 6 described, and the 17th pin RMII TXD1 PG14 of U4 is connected to the 126th pin of the control chip for signal transmission.

[0031] The 1 - way RS422 bus module is used to conduct RS422 bus communication with the controlled vehicle. The circuit diagram of the 1 - way RS422 bus module is as Figure 7 shown. The 2nd pin and the 3rd pin of the 1 - way RS422 bus module are respectively connected to the 77th pin and the 78th pin of the control chip to conduct signal transmission.

[0032] The acquisition unit is used to acquire the control commands sent by the remote control terminal. The acquisition unit includes a left-right steering and pitch angle sensor module, a throttle-brake sensor module, a 2-channel force-sensitive sensor module, and a 27-channel digital input module. The input end of the left-right steering and pitch angle sensor module is connected to the output end of the angle sensor. The input ends of the throttle-brake sensor module are respectively connected to the output ends of the throttle control button 3 and the brake control button 4. The input ends of the 2-channel force-sensitive sensor module are connected to the output ends of the force-sensitive sensors. The input ends of the 27-channel digital input module are connected to the output ends of the control buttons. The output ends of the left-right steering and pitch angle sensor module, the throttle-brake sensor module, the 2-channel force-sensitive sensor module, and the 27-channel digital input module are respectively connected to the input end of the minimum single-chip microcomputer system.

[0033] The left-right steering and pitch angle sensor module is used to collect the data of the angle sensor. The circuit diagram of the left-right steering and pitch angle sensor module is as Figure 8 shown. The pins 2 and 3 of the left-right steering and pitch angle sensor module are respectively connected to the pins 20 and 19 of the control chip to transmit the collected signals.

[0034] The throttle-brake sensor module is used to collect the data of the brake and throttle sensors. The circuit diagram of the throttle-brake sensor module is as Figure 9 shown. The output of the throttle-brake sensor module is connected to the pins 35 and 36 of the control chip to send the collected sensor signals to the control chip for processing.

[0035] The 2-channel force-sensitive sensor module is used to collect the data of the force-sensitive sensors. The circuit diagram of the 2-channel force-sensitive sensor module is as Figure 10 shown. The output ends of the 2-channel force-sensitive sensor module are connected to the pins 103 and 104 of the control chip to send the collected signals to the control chip.

[0036] The 27-channel digital input module is used to collect digital input signals. The circuit diagram of the 27-channel digital input module is as Figure 11 shown. It collects the digital input signals of the control buttons and transmits the collected signals to the control chip for processing.

[0037] The utility model adopts a combination of Ethernet and RS422 communication, with a fast data transmission rate of 100 megabits per second, and a relatively flexible network topology structure, which can support a variety of network topologies, such as bus, star, ring, etc., so that Ethernet has flexibility and scalability when deploying the network; and RS422 communication adopts a differential transmission method, and the differential signal ensures the stability of data transmission by offsetting the common mode interference in the environment, and can maintain a high transmission quality in long-distance transmission and in an environment with more noise interference, and can connect multiple devices in series on the same bus for data communication. This feature makes RS422 widely used in industrial control systems and data acquisition systems, and can meet complex data communication needs.

Claims

1. A console control panel integrating Ethernet and RS422 communication, characterized in that: The invention comprises a control terminal (1), wherein the control terminal (1) is provided with a control button (2), and control handles on both sides of the control terminal (1) are respectively provided with a throttle control button (3), a brake control button (4), a left and right steering control button (5), and a pitch angle control button (6) for controlling the movement of the vehicle. The control terminal (1) is provided with a control panel for controlling the movement of the vehicle according to the control instructions, and the output ends of the control button, the throttle control button, the brake control button, the left and right steering control button, and the pitch angle control button are respectively connected to the input end of the control panel; the control panel comprises a control panel for sending a control signal according to the control instruction from the control terminal. A single-chip microcomputer minimum system, a power management module for providing power supply, a 1-way Ethernet module for Ethernet communication with the control vehicle, a 1-way RS422 bus module for RS422 bus communication with the control vehicle, and a collection unit for collecting control instructions issued by the control terminal, the output end of the power management module is connected to the power input end of the single-chip microcomputer minimum system, the input end of the collection unit is connected to the button output end on the control terminal, the output end of the collection unit is connected to the input end of the single-chip microcomputer minimum system, and the output end of the single-chip microcomputer minimum system is electrically connected to the 1-way Ethernet module and the 1-way RS422 bus module respectively.

2. The console control panel integrating Ethernet and RS422 communication according to claim 1, characterized in that: The throttle control key (3) and the brake control key (4) are both provided with force-sensitive sensors for collecting throttle and brake forces, and the left and right steering control keys (5) and the pitch angle control key (6) are both provided with angle sensors for collecting steering angles and pitch angles, and the output ends of the force-sensitive sensor and the angle sensor are respectively connected to the input ends of the control panel.

3. The console control panel integrating Ethernet and RS422 communication according to claim 2, characterized in that: The acquisition unit comprises a left and right steering and pitch angle sensor module for acquiring data from an angle sensor, a throttle brake sensor module for acquiring data from a brake and throttle sensor, a 2-way force sensitive sensor module for acquiring data from a force sensitive sensor, and a 27-way switch quantity module for acquiring switch quantity signals. The input end of the left and right steering and pitch angle sensor module is connected to the output end of the angle sensor, the input end of the throttle brake sensor module is respectively connected to the output end of a throttle control key (3) and a brake control key (4), the input end of the 2-way force sensitive sensor module is connected to the output end of the force sensitive sensor, the input end of the 27-way switch quantity module is connected to the output end of the control key, and the output ends of the left and right steering and pitch angle sensor module, the throttle brake sensor module, the 2-way force sensitive sensor module, and the 27-way switch quantity module are respectively connected to the input end of the single-chip minimum system.

4. The console control panel integrating Ethernet and RS422 communication according to claim 1, characterized in that: The single-chip computer minimum system comprises a control chip, a crystal oscillator circuit and a reset circuit, and the control chip is electrically connected to the crystal oscillator circuit and the reset circuit respectively.

5. The console control panel integrating Ethernet and RS422 communication according to claim 1, characterized in that: The power management module includes a conversion module for converting a 24V power supply into a 5V power supply and a buck filter module for converting a 5V power supply into a 3.3V power supply and filtering a power supply signal. The output end of the conversion module is connected to the input end of the buck filter module, and the output end of the buck filter module is connected to the power input end of the single-chip microcomputer minimum system.

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