Software System Design Of WiFi-based Positioning For Food Delivery Robot Used In High-speed Rail

With the development of robotic technology,service robots are widely used in people's daily life because they can do tedious and time-consuming tasks.Research on the software functions and location technology of service robots has been a hot research topic.At present,the food delivery robot used in the high-speed railway trains has not yet been developed,which require a large amount of services.Based on this problem,the robot used in high-speed train for food delivery is designed and developed,the food delivery robot software system is designed,and the robot using WiFi fingerprint-based indoor localization is realized.The main work includes:(1)The current location technology is analyzed and compared for the special application environment of high-speed trains.And a suitable WiFi positioning method is chosen in combination with environmental conditions,hardware cost and positioning accuracy requirements.An improved method of WiFi fingerprint-based localization was proposed,in the off-line stage,the median filter is used to process the signal data,using the processed signal values combined with position information as training samples to train the SVM classification model,in the on-line stage,using the SVM classification model to classify the signal data,transforming positioning problems into classification problems.After simulating the data,the experimental results are analyzed and a positioning result correction method is proposed.(2)The PC software system of the delivery robot is realized in Java language,it includes a device management system and a positioning system.The device management system can display the real-time status information of the delivery robot and can also control the delivery robot.The positioning system designs a positioning server based on the improved positioning algorithm which is proposed in this paper.The Modbus/TCP communication is used to achieve the communication of the host computer and the robot,realizing the data exchange function by reading and writing the variable values of the register.(3)In the end,the PC software system based on location fingerprinting is tested,and the function of the software system has achieved the expected performance.