The micro-rocket flight control system refers to the system used to control the flight of micro-rockets, which is generally composed of sensors, controllers and actuating mechanisms. The following is some information about the micro-rocket flight control system:
- Sensors: Used to measure information such as the attitude, speed, and position of the rocket. Commonly used sensors include gyroscopes, accelerometers, magnetometers, GPS, etc.
- Controller: According to the information measured by the sensors, calculate the attitude and trajectory of the rocket and generate control instructions. Commonly used controllers include microcontrollers, FPGAs, etc.
- Actuating mechanisms: Adjust the attitude and trajectory of the rocket according to the control instructions generated by the controller. Commonly used actuating mechanisms include rudders, thrusters, etc.
The design of the micro-rocket flight control system needs to take into account factors such as the size, weight, and cost of the rocket, and at the same time, it also needs to meet certain requirements for accuracy and reliability.
Here are some methods to ensure the control accuracy and reliability of the micro-rocket flight control system:
In terms of control accuracy:
- High-precision sensors: Select sensors with high precision and fast response to obtain accurate flight status information, such as high-precision gyroscopes, accelerometers, etc.
- Accurate algorithm design: Develop advanced and accurate control algorithms to finely process and calculate the data to achieve the generation of accurate control instructions.
- Calibration and compensation: Regularly calibrate the sensors and the system, and compensate and correct for possible errors.
In terms of reliability:
- Redundant design: Use redundant configurations for key components, such as multiple sensors or controllers, so that when one fails, the standby one can take over in time.
- Stringent testing: Conduct a large number of strict tests during the R & D process, including tests that simulate various harsh environments and working conditions to detect potential problems in advance.
- High-quality components: Select electronic components and mechanical parts with reliable quality and stable performance.
- Fault diagnosis and self-repair: Have a real-time fault diagnosis mechanism, be able to quickly discover problems and take certain self-repair measures or enter a safe mode.
- Environmental adaptability: Optimize the design for different environmental conditions (temperature, humidity, vibration, etc.) to improve the adaptability of the system in various environments.
Here are some common reliability test methods for micro-rocket flight control systems:
Environmental simulation test:
- High and low temperature test: Place the system in extremely high and low temperature environments to test its performance under different temperature conditions.
- Humidity test: Simulate high humidity and low humidity environments to observe the impact on the system.
- Vibration test: Apply vibrations of different frequencies and intensities to assess the system's vibration resistance ability.
Long-term operation test: Let the system operate continuously for a long time to monitor whether it can work stably and reliably.
Electromagnetic compatibility test: Check the normal operation ability of the system in an electromagnetic interference environment.
Pressure test: Simulate different pressure environments, such as changes in air pressure.
Fault injection test: Artificially introduce various fault modes to observe the system's response and recovery ability.
Repeated operation test: Conduct a large number of repeated operations on the system to verify its stability and durability.
Limit performance test: Gradually increase the system's working load to the limit to examine its reliability boundary.
Interface compatibility test: Ensure stable and reliable interface connection with other related systems or devices.