Design Of Unmanned Air Vehicle Control System For Urban Fire Extinguishing

With tie continuous expansion of urban construction scale,extinguish blazes and rescue have to face some complicated and changeable site conditions.Extinguish blazes and personnel escape in high-rise buildings is currently recognized problems in the world.In view of the current demand of high-rise building put out a fire in cities,the traditional methods of investigation and rescue at the fire scene have shown certain limitations.Especially in complex fire fighting and rescue scenes,how to accurately,timely,quickly and efficiently transmit the information at the scene and focus on personnel rescue has become a new topic for fire fighting and rescue.One of the solutions to the above problems is to implement fire fighting and rescue work by means of wireless monitoring and special fire finghting methods.However,high-rise buildings often have complex building structures,which are characterized by imperfect fire fighting communication equipment and poor coverage of wireless signals by operators.As a result,wireless communication signals arc shielded and interfered,which makes it difficult to ensure smoooth wireless communication.Based on the above reasons,this subject decides to develop a fire-fighting airborne contol system for the purpose of fast and effective fire detection and extinguishing of high-rise buildings,on the basis of analyzing and studying the advantages and disadvantages of existing tire-fighting systems.This thesis conducts research on the design of control systems for fire drones.Its core content is to complete the selection of main airborne equipment and the development and testing of airborne controllers,so that it can download images and flight attitudes by wireless tran smission.Information,and can comp lete a series of operations such as attitude control,camera control,fire bomb launch,positioning information acquisition and display according to the ground control instructions.According to the above general requirements,after careful analysis and refinement,the system functional requirements and technical requirements are finally dctarmined.Thc main tasks of this thesis are as follows:1.Firstly,the thesis analyzes the funetional requirements and technical requirements of the system,carries out the overall design of the system,and divides the system into three parts:airborne control system,wireless transmission system and ground control terminal.The system is completed by two parts:the main hardware design and the software design.The parameter selection of wireless data transmission module and wireless image transmission module is included in the hardware design.2.The design and development of the airborne control system of the fire-fighting unmanned aerial vehicle are mainly introduced,including the selection of wireless data transmission module,wireless image transmission module,attitude sensor and video monitor,as well as the hardware circuit design and software programming of the airborne controller.At the same time,according to the communication protocol,the user application software on the ground control terminal is developed.3.Finally,according to the technical indicators of the project,the main performance of the system is experimentally verified and analyzed.According to the test sequence,it is divided into functional test and comprehensive test.The hardware circuit test focuses on power-on debugging and interfaces debugging,followed by joint debugging between the airborne control system and the ground control terminal software,and finally simulates the actual scenario for wireless communication testing,Through field tests and result analysis,the system has reached the expected technical indicators to meet the actual application requirements.