A design method for launcher bolt opening control

Abstract

The present invention provides a design method for bolt opening control of a transmitter, wherein the transmitter includes a host computer control unit, a microcontroller, front and rear limit modules for bolt opening, a bolt opening control module, a bolt opening potentiometer, and a bolt opening motor. The host computer control unit sends a bolt opening or unbolting command to the microcontroller, and the microcontroller controls the rotation of the bolt opening motor through the bolt opening control module to perform the bolt opening or unbolting action. At the same time, the microcontroller monitors the movement position of the bolt opening motor in real time through the bolt opening potentiometer. The microcontroller controls the bolt opening motor through a PWM signal, and can flexibly adjust the rotation speed of the bolt opening motor, thereby achieving the purpose of accurately controlling the bolt opening position. The present invention has a simple design, flexible and accurate control, and higher safety.

Description

Technical Field

[0001] The invention relates to the field of automatic control of firearms, and in particular to a design method for bolt opening control of a launcher. Background Art

[0002] At present, compared with the automation process in other fields, the automation control of firearms has many shortcomings. For example, for the control of the bolt opening of the launcher, most of the launchers are currently opened by pulling the bolt manually to achieve the purpose of loading the launcher projectile. There are many problems with this operation method. On the one hand, a large-caliber launcher requires a large force to pull the bolt. For example, a 40mm caliber launcher requires manual labor to pull the bolt, which requires the operator's physical strength and consumes a lot of energy; on the other hand, there are safety risks in the operator's bolt pulling process, and after the launcher is integrated into a mobile platform, remote control operation is required in a real battlefield environment. Since the bolt opening control process is cumbersome, the safety requirements for operation are very high, and the existing automatic bolt opening control method is single, inconvenient to operate, and there are safety risks. Summary of the invention

[0003] In view of the above problems, the purpose of the present invention is to provide a design method for launcher bolt opening control, which has higher safety and flexible and accurate control.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A design method for bolt opening control of a transmitter, the transmitter comprises a host computer control unit, a microcontroller, a bolt opening front and rear limit module, a bolt opening control module, a bolt opening potentiometer and a bolt opening motor; the host computer control unit sends a bolt opening or bolt unloading command to the microcontroller, the microcontroller controls the rotation of the bolt opening motor through the bolt opening control module to perform the bolt opening or bolt unloading action, and the microcontroller monitors the movement position of the bolt opening motor in real time through the bolt opening potentiometer.

[0005] Furthermore, the microcontroller controls the bolt opening motor by means of a PWM signal, and can adjust the rotation speed of the bolt opening motor to control the bolt opening position.

[0006] The transmitter also includes a timer.

[0007] The microcontroller determines whether the value change of the bolt opening potentiometer within a period of time is less than the limit value. When the value is less than the limit value, the microcontroller controls the bolt opening motor to stop rotating, and feeds back the bolt opening motor failure state and the bolt opening or retracting incomplete state to the upper computer control unit; When the voltage value of the bolt opening potentiometer reaches the limit value of the bolt opening position or the limit value of the bolt retraction position, the microcontroller controls the bolt opening motor to stop rotating and feeds back the bolt opening or retraction position status to the upper computer control unit; The microcontroller monitors in real time whether the bolt opening motor reaches the front and rear limit positions through the bolt opening front and rear limit modules. When the front and rear limit positions are reached, the microcontroller controls the bolt opening motor to stop rotating.

[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: compared with the existing launcher bolt opening control method, the present invention sends a bolt opening or unloading command to the microcontroller through the host computer control unit, and the microcontroller controls the rotation of the bolt opening motor through the bolt opening control module to perform the bolt opening or unloading action. At the same time, the microcontroller monitors the movement position of the bolt opening motor in real time through the bolt opening potentiometer. The microcontroller controls the bolt opening motor through a PWM signal, and can flexibly adjust the rotation speed of the bolt opening motor, thereby achieving the purpose of accurately controlling the bolt opening position. The present invention is simple in design, flexible in control, accurate, and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a principle block diagram of a design method for launcher bolt opening control of the present invention; Figure 2 It is a circuit diagram of the present invention. DETAILED DESCRIPTION

[0010] The technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings and specific embodiments.

[0011] Reference Figure 1 A design method for bolt opening control of a launcher is disclosed. The launcher includes a host computer control unit, a microcontroller, a bolt opening front and rear limit module, a bolt opening control module, a bolt opening potentiometer and a bolt opening motor. The host computer control unit sends a bolt opening or bolt unloading command to the microcontroller. The microcontroller controls the rotation of the bolt opening motor to open the bolt or unload the bolt through the bolt opening control module. At the same time, the microcontroller monitors the movement position of the bolt opening motor in real time through the bolt opening potentiometer.

[0012] The microcontroller controls the bolt opening motor through PWM signals, which can adjust the rotation speed of the bolt opening motor and control the bolt opening position.

[0013] The transmitter also includes a timer.

[0014] When the bolt opening motor is abnormal and blocked, the microcontroller controls the bolt opening motor to stop rotating by judging whether the value change of the bolt opening potentiometer within a period of time is less than a certain limit value, and feedbacks the fault state of the bolt opening motor and the state of not opening the bolt or retracting the chamber to the upper computer control unit; when the voltage value of the bolt opening potentiometer reaches the limit value of the bolt opening or the limit value of the retracting chamber, the microcontroller controls the bolt opening motor to stop rotating, and feedbacks the state of opening the bolt or retracting the chamber to the upper computer control unit. The microcontroller can monitor whether the bolt opening motor reaches the front and rear limit positions in real time through the bolt opening front and rear limit modules, thereby controlling the bolt opening motor to stop rotating, and preventing the bolt opening motor from rotating beyond the limit and blocking. When an abnormal situation occurs during the bolt opening or retracting process, the upper computer control unit can also control the bolt opening motor to stop rotating at any time. The microcontroller controls the bolt opening motor through PWM signals, and can flexibly adjust the rotation speed of the bolt opening motor, so as to achieve the purpose of accurately controlling the bolt opening position.

[0015] One embodiment of the present invention, referring to Figure 2The host computer control unit uses the CAN bus to send an opening or unbolting command to the microcontroller GD32F103C8T6 through the CAN_RX and CAN_TX interfaces. The microcontroller GD32F103C8T6 converts the opening or unbolting command into a PWM control signal for opening or unbolting and sends it to the motor driver chip SGM42501 through the interfaces MOTO_EN and MOTO_DIR. Finally, the motor driver chip SGM42501 controls the motor to open or unbolt through the interfaces MOTO1+ and MOTO1-. According to the actual control requirements, a high-speed PWM control signal is used in the early stage of the opening motor rotation, and a low-speed PWM control signal is used in the later stage of the opening motor action when it is about to be in place, so as to flexibly control the motor rotation speed to achieve the purpose of accurate opening and positioning. The voltage value of the bolt opening potentiometer is divided by the voltage-dividing resistors R3 and R4 and then connected to the AD module of the microcontroller GD32F103C8T6 through the KS_AD interface to realize the acquisition of the bolt opening potentiometer voltage and monitor the bolt opening position in real time; when the voltage value of the bolt opening potentiometer reaches the limit voltage value of the bolt opening or the chamber backing, the microcontroller GD32F103C8T6 controls the bolt opening motor to stop rotating, and feeds back the bolt opening or chamber backing status to the upper computer control unit. The microcontroller GD32F103C8T6 regularly compares the current voltage value of the bolt opening potentiometer with the voltage value of the previous bolt opening potentiometer every two seconds. When the absolute value of the difference between the two voltage values ​​is less than a certain limit value, it is determined that the bolt opening motor is blocked, and the bolt opening motor is controlled to stop rotating, and the bolt opening motor fault status and the bolt opening or chamber backing status are uploaded. The switch signals of the front and rear limit modules of bolt opening are divided by the voltage-dividing resistors R7, R5 and R8, R9 respectively, and then connected to the microcontroller GD32F103C8T6 through the interfaces KS_F and KS_B to realize the collection of the switch signals of the front and rear limit modules. When a low level is collected, it means that the bolt opening motor has reached the front and rear limit positions of bolt opening, thereby controlling the bolt opening motor to stop rotating, preventing the bolt opening motor from being blocked or damaging the equipment due to exceeding the mechanical limit.

Claims

1. A design method for launcher bolt opening control, characterized in that: The transmitter includes a host computer control unit, a microcontroller, front and rear limit modules for bolt opening, a bolt opening control module, a bolt opening potentiometer and a bolt opening motor; the host computer control unit sends a bolt opening or bolt unloading command to the microcontroller, and the microcontroller controls the rotation of the bolt opening motor through the bolt opening control module to perform the bolt opening or bolt unloading action, and at the same time, the microcontroller monitors the movement position of the bolt opening motor in real time through the bolt opening potentiometer.

2. A design method for launcher bolt opening control according to claim 1, characterized in that: The microcontroller controls the bolt opening motor by means of PWM signals, and can adjust the rotation speed of the bolt opening motor to control the bolt opening position.

3. A design method for launcher bolt opening control according to claim 2, characterized in that: The transmitter also includes a timer.

4. A design method for launcher bolt opening control according to claim 3, characterized in that: The microcontroller determines whether the value change of the bolt opening potentiometer within a period of time is less than the limit value. When the value is less than the limit value, the microcontroller controls the bolt opening motor to stop rotating, and feeds back the bolt opening motor failure state and the bolt opening or retracting incomplete state to the upper computer control unit; When the voltage value of the bolt opening potentiometer reaches the limit value of the bolt opening position or the limit value of the bolt retraction position, the microcontroller controls the bolt opening motor to stop rotating and feeds back the bolt opening or retraction position status to the upper computer control unit; The microcontroller monitors in real time whether the bolt opening motor reaches the front and rear limit positions through the bolt opening front and rear limit modules. When the front and rear limit positions are reached, the microcontroller controls the bolt opening motor to stop rotating.

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