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Design of Intelligent Fire Alarm System for Large Storage Places Based on AVRmega128 Single Chip Microcomputer
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作者 杨东星 李明儒 +1 位作者 刘南君 毛培宏 《Agricultural Science & Technology》 CAS 2014年第4期692-696,共5页
With principles of reliability, independence, practicality and economical effi- ciency, a set of intelligent fire alarm system based on AVRmega128 single chip microcomputer was designed to solve problems of fire alarm... With principles of reliability, independence, practicality and economical effi- ciency, a set of intelligent fire alarm system based on AVRmega128 single chip microcomputer was designed to solve problems of fire alarm system in many large- scale warehouses. Using advanced flame sensor, 485 bus communication, computer interactive software and related peripheral devices, this intelligent fire alarm system has functions of sound-light alarm and intelligent fire extinguishing. The human-com- puter interactive software was adopted for the remote control of the alarm main control panel through the 485 bus communication. This design of intelligent fire alarm system shows high reference and practical value to the development of intel- ligent alarm products with high integration and high reliability. 展开更多
关键词 AVRmega128 single chip microcomputer 485 bus communication Audi- ble and visual alarm Intelligent fire extinguishing Human-computer interaction
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Developing Environment of Hierarchical and Distributed Real-Time Fire-Control Network 被引量:1
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作者 He Jianhua(Northwestern Polytechnical University, Xi’an 710072, P. R. China)(This project was supported by the Astronautics Foundation.) 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1998年第4期1-7,共7页
This paper introduces a hierarchical real-time environment for developing ship-bornefire-control system. Advanced computer networks are used to simulate the system with the requiredengagement scenario, including own-s... This paper introduces a hierarchical real-time environment for developing ship-bornefire-control system. Advanced computer networks are used to simulate the system with the requiredengagement scenario, including own-ship and parameters, and data processing and transmission,mission calculation, graphical supervision and gunnery ballistics outputting. The simulation systemis able to receive instruction from, or send information to the command-control center. Furthermore,the system can also be used to compare various designed schemes and analyze the accuracy andeffectiveness of the system. 展开更多
关键词 Distributed network Fire-control RS-485 communication Software environment
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Intelligent Control System of Textile Mill's Air-conditioning
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作者 巫付专 赵方 《Journal of Donghua University(English Edition)》 EI CAS 2009年第3期309-312,共4页
This paper briefly analyzes the present situation of textile mill's air-conditioning system. Since it is difficult to establish detailed math model to control a textile mill's airconditioning system because of the i... This paper briefly analyzes the present situation of textile mill's air-conditioning system. Since it is difficult to establish detailed math model to control a textile mill's airconditioning system because of the influence of various factors such as the differences in seasons, regions, etc., most air-conditioning equipment can not be controlled automatically. This paper suggests utilizing multi-function data acquisRion card to collect the data about the temperature and humidity of a workshop, processing the data on a PC, comparing them with the expert database, and then using the 485 serial port expanding module to output the parameters, which are used to control the inverter, so that the purpose of adjusting the temperature and humidity of the workshop is achieved. 展开更多
关键词 multi-function data acquisition card 485 serial port communication expanding module expert database universal serial interface protocol
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Network Structure and Reliability Analysis of a New Integrated Circuit Card Payment System for Hospital
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作者 章菁 郑西涛 +3 位作者 俞夜花 张永伟 杨堃 石军 《Journal of Shanghai Jiaotong university(Science)》 EI 2013年第5期630-633,共4页
This paper proposes a redundant network communication structure for the patient integrated circuit(IC)card payment system in a hospital information system(HIS),compares it with the network structure of normal hospital... This paper proposes a redundant network communication structure for the patient integrated circuit(IC)card payment system in a hospital information system(HIS),compares it with the network structure of normal hospital IC card system,and calculates the reliabilities of the related communications like the RS485communication and the Ethernet communication.The new structure can efectively promote the reliability of the hospital operation and ensure the payment collection when the Ethernet network is broken.The system is applied to a local hospital and the cost-performance rate is satisfactory during the application. 展开更多
关键词 hospital information system(HIS) integrated circuit(IC) card payment system RS485 communication system reliability
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