High-precision Control Method of Mechanical-hydraulic Three-dimensional Parking Device in Time of Unstable Density
The parking space control of hydraulic stereo parking device is an active mechanical lifting control process,only taking user's waiting time as a constraint.When the vehicle density is unstable,defects such as poor control accuracy occur.The high precision control method of the mechanical hydraulic stereoscopic parking device under the time of dense and unstable vehicles is designed.The weaving control conditions of vehicles in the mechanical hydraulic stereoscopic parking device is studied to construct the spatial control model.Considering the parking density constraint of hydraulic stereo parking device and the unstable state time constraint of user parking,the parking device control model is built.Ant colony optimization algorithm is used to solve the space control model and time control model to complete the control of the mechanical and hydraulic three-dimensional parking device under dense vehicles.The experimental results show that under the control of the proposed method,the average number of moving steps of the parking robot is 10,the average moving distance is 32 m,the user's waiting time is controlled within 1 min,and the average parking time is 56 s,which verifies that the optimization effect is good.
time of unstable densitymechanical hydraulic three-dimensional parking devicevehicle weavingant colony optimization algorithm