The Design And Research Of Meteorological Elements Detection Robot

As the development of the technology of computer, machinery, electronic and material, the working ability of the mobile robot has also been improved. The mobile robot has been increasingly used in the environments which are dangerous and complex for human, so we can both reduce the unnecessary injury and complete the work successfully. Mobile robot should at least have two capabilities if it works in complex environments:autonomous navigation capability and the ability to complete the work. Autonomous navigation capability can ensure the mobile robot has ability to detect the features of the unknown environment, so the robot can react quickly to adaptive the environment, and get to the working place successfully. The concentration of autonomous navigation is SLAM (simultaneous localization and mapping). The ability to complete the work means the robot can help people to finish the work based on autonomous navigation. The robot can have related functions by adding certain sensors. This paper designed one kind of meteorological elements detection robot. It can detect the meteorological information and pose of robot real-timely. Through data processing of pose of robot, the robot can finish SLAM.In this paper, the mobile robot includes two modules:motion module and the meteorological elements detection module. The movement module includes ultrasonic sensors, electronic compass, Hall-effect sensor, the motor drive module and the power module. The meteorological elements detection module includes temperature and humidity sensor (DHT11), the temperature and pressure sensors (BMP085), wind speed sensor and the wind direction sensor. The wire and wireless communication modules are designed with RS232and RF1100, respectively. The data which is acquired by the mobile robot will be uploaded to the upper computer by using the communication modules. The upper computer interface is programmed with MATLAB, it can display the meteorological information, the trajectory of the mobile robot, and build the map of the surroundings.The concentration of SLAM is robot localization. This paper use two methods: double hall-effect sensor differential motion localization and multiple sensor fusion localization by using the hall-effect sensor and the electronic compass. Then we can build the map of the surroundings by using ultrasonic based on robot localization.