Abstract:
This project is the development of applications on Android operating system for
controlling the surveying car in risky area through a wireless network. The main objective is to
design and build an application that can control the surveying car to explore in any area through a
wireless network(Wi-Fi). In terms of the surveying car. It is designed to move in the horizontal
direction. It have a sensor that can detect flammable gas and it have IP camera for sending the
picture signal from the surveying car to the screen on the tablet by controlling through on
Android tablet operating system. In the experiment of application can connect with the surveying
car and control the movement of the surveying car perfectly. The results of experiment show that
the lime for the movement of the surveying car in the model map compare with the real-time
calculated (hat the percentage of error is 14.20%. The experiment of trial distance for contrllong
the surveying car show that the longest distrancc is 50 meters in the open space and 20 meters in
the building. In the experiment of IP camera show that it can be displayed and controlled the
direction ol rotation completely in every position degrees. In the experiment of detecting
flammable gas show that the system can operate efficiently. It can capture flammable gas
accurately such as Alcohol lighter. Mosquito spray.