A vehicle-mounted turntable control system and method

Abstract

The invention discloses a vehicle-mounted turntable control system and a control method. The control system includes a driving device, a locking device, and a control device for controlling the driving device and the locking device. The driving device includes an angle sensor, a D / A A conversion chip, a motor driver and a drive motor, the locking device includes a position sensor, an A / D acquisition chip, a stepper motor driver and a stepper motor, and the control device includes a digital signal processor. The control method includes inputting instructions to the digital signal processor, automatically unlocking the turntable, calculating the acceleration and deceleration control curve of the turntable, calculating the voltage of the driving motor and driving the turntable according to the voltage, and automatically locking the turntable. The system of the invention greatly simplifies the volume of the turntable, can be integrated with other equipment, can realize automatic locking and unlocking of the turntable at any position, and can also realize stable operation and precise positioning of the turntable.

Description

technical field [0001] The invention belongs to the field of electromechanical control, and in particular relates to a DSP-based vehicle turntable control system and method. Background technique [0002] The turntable can truly reproduce the movement characteristics of the equipment under test in the direction of azimuth, pitch, and yaw. It plays an important role in scientific experiments and weaponry, and is the key carrier equipment for simulation, simulation, and testing. [0003] At present, the turntables used mainly include laboratory large-scale resident turntables, vehicle-mounted turntables, and ship turntables. The commonly used turntable control systems are mainly composed of computer control systems, drive systems and measurement systems. The computer control systems are mainly composed of industrial computers and motion controllers. The industrial control computer mainly monitors the running state of the turntable, and the motion controller is the core of the s...

AI Technical Summary

Problems solved by technology

The disadvantage is that using the motion controller as the core component of the control system simplifies the hardware design and reduces the difficulty of the control algorithm, but increases the cost of software and hardware, and the turntable is not easy to achieve seamless integration with other equipment

However, due to the complexity of the neural network algorithm itself, it is suitable for high-performance industrial computers. The hardware cost is high and the algorithm is complex, so it cannot be used in DSP-based embedded systems. There are certain limitations in use, and it is still in the algorithm research stage.

[0007] Based on the advantages and disadvantages of the above-mentioned turntable control methods and each method, the following technical problems currently exist for the DSP-based vehicle turntable: (1) the hardware cost is high, the volume is large, and it is difficult to realize seamless integration with other devices; (2) ) Due to the influence of factors such as road bumps and vibrations, it is difficult for ordinary PI control algorithms to eliminate static errors to achieve higher control accuracy, and may also lead to integral oversaturation and overshoot; (3) due to structural parts, locking Due to the influence of force and ambient temperature, it is difficult for the turntable to automatically lock and unlock at any angle, and the overshoot and emergency stop of the turntable when starting and stopping can easily cause back and forth vibration; (4) the turntable is in the process of movement It is easy to have a sudden increase in current and a sudden change in speed, resulting in a speeding phenomenon

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