| People's air defense alarm system is an important and important part of the national civil air defense business.The wartime air defense alarm system is an important information medium for the implementation of civil air defense command and organization personnel evacuation and good preparation work.At the same time,air defense alarm should be a disaster relief service,is the city people know the disaster and the danger of an important medium,it is related to national security and people's lives and property.China's civil air defense business after years of development,its basic functions have been very good to achieve,you can accurately and timely completion of the relevant orders to inform.Now to strengthen the management level of civil air defense system,timely and real-time understanding of the system of the scene state of the situation,to improve the intelligent and functional diversification of human defense system is the direction of today's research.This paper mainly discusses the research on the terminal control system of the people's air defense alarm.Firstly,it analyzes and discusses the application status and research results of the domestic and international anti-traffic alarm terminal technology,and then puts forward the research direction of the terminal system of human air defense alarm and its actual function demand.This paper discusses the design and implementation of electro-acoustic air defense alarm terminal control system.This paper discusses the main function of the air defense alarm terminal control system:realizes the real-time acquisition and feedback of the state of the alarm terminal control system;adopts the dual system working mode to improve the system stability and anti-aliasing ability;add TTS(text to speech),MP3 And power digital adjustment and other functions,enriched the functional diversity of the system.The core control processing module is composed of core control processing module,power amplifier module and human-computer interaction interface.The core control processing module is the information processing and control center of the system.The power amplifier module is responsible for enlarging the small signal audio Output,human-computer interface is used to display the relevant state of the system and provide manual control system man-machine interface.The STM32F103RCT6 MCU is used as the main control chip of the air defense alarm terminal control system.The TPA3251 digital power amplifier chip is used to amplify the audio signal in the system.The current and current state of the system is used to analyze and judge the current working status of the system.Using digital potentiometer chip to achieve the power of digital adjustment function.Finally,the feasibility of the air defense alarm terminal control system is designed.The system can detect and feedback the working status of the system in real time,realize the functions of digital power regulation,TTS and MP3,and reduce the working mode of the dual system The probability of a system error. |
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