Abstract: According to the security requirements of dormitory, according to the principles of reliability, independence, security, linkage, scalability, practicability and economy, an intelligent apartment anti-theft fire alarm system based on ARM is designed. The system uses Easyarm LM3S1138, RS232 bus and a variety of sensors to achieve remote control and multi-terminal network synchronization control. The test shows that the system not only realizes the functions of human body detection, smoke detection, sound and light alarm, keyboard password alarm and valuables entry and exit in the dormitory, but also has simple circuit design, high reliability, friendly interaction and cost. Low features.
Looking at the current situation of campus security, no matter colleges or small and medium-sized schools are not optimistic, students in the school bedroom stolen goods and students use electrical appliances to cause fire, is a "big problem" in college management. With the adjustment and development of sensor technology, network technology, control technology and communication technology, it provides a modern and dynamic management of student apartments, enhances the safety of student apartments, and keeps security incidents at a minimum, thus eliminating the worries of academic students and schools. may. This paper designs an intelligent security measurement and control system for student apartments based on ARM based on the principles of reliability, independence, security, linkage, scalability, practicability and economy. The system consists of two parts: the collection terminal and the remote centralized control terminal. The two communicate serially through the RS232 bus, which can realize remote control and multi-terminal network synchronization control. It not only has human body detection, smoke detection, sound and light alarm, and keyboard password solution. The police, as well as the record of the entry and exit of valuables in the dormitory, have the characteristics of simple circuit design, high reliability, strong pertinence, friendly human-computer interaction and low cost.
1. System composition and basic principles
The system consists of multiple dormitory monitoring stations and one building management station. The schematic diagram is shown in Figure 1. The dormitory monitoring station is installed in the dormitory to be guarded, and the various parameters (such as human pyroelectric infrared signal, fire smoke concentration) before the occurrence of various disasters in the detection area are not detected, and RS232 is passed. The bus is transmitted to the building management station. The building management station is located in the duty area. It is implemented by PC for convenient inquiry and storage function. It monitors each dormitory through the information displayed on the PC, so as to timely alarm and notify the administrator to take corresponding measures.
Figure 1 System schematic
Weiku PDF Download: ARM-based intelligent apartment security measurement and control system design.rar
references:
[1]. RS232 datasheet http://
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