Based On The Application Of Infrared Alarm Detector Simulation System Design

With the maturation and the development of infrared detection technology, infrared alarm system is widely used in security territory.The active infrared alarm system based on double beam detection technology and pulse coded excitation circuit has the advantages of high sensitivity and far monitoring distance.Multisim 10 software for simulation and design provides a platform with powerful function of diagram drawing and interface simulation, Multisim 10 can test circuit with virtual instruments and simulate circuit with MCU, with accurate and reliable simulation parameters, Multisim 10 is an excellent and widely used EDA system.To reduce the research and design costs, the paper designs two kinds of active infrared alarm detectors based on pulse modulation and carrier modulation in Multisim 10, with the warning state ordinarily, automatic alarm signals may be audible and visual when invasion appears in guardianship area and infrared light roads are occluded.To form a distributed network, an alarm system based on infrared detectors is designed to realize real-time and unified management in surveillance control center.The main investigation of the paper is as the following concerned:The principle and the application of active infrared alarm system are researched deeply.The application of Multisim 10 in the simulation and the design of electronic system is researched.Two kinds of infrared alarm detectors based on pulse modulation and carrier modulation are designed, theoretical parameters and work states of the detectors are analyzed which are simulated and tested with graphs and data.With the automatic alarm signals may be audible and visual of each monitoring point, the states of collection points are real-time monitored of surveillance control center, an alarm system based on infrared detectors is designed.The performance indicators of the infrared alarm detectors designed in this paper meet the design requirements, the alarm system based on infrared detectors is with high reliability and practicability, the results provide reliable analysis basis for further research and design on the system and have great value for reference in practice.