Design of Home Intelligent Alarm System Abstract

ABSTRACT

A smart home or building is a residence or building, usually equipped with special structured wiring, that enables occupants to remotely control or program a series of electronic devices that automate the home by entering a single command. Conventional security systems keep homeowners and their properties safe from intruders. However, smart home security systems offer more benefits. Home automation technology notifies homeowners of any issues, allowing them to investigate. In this article, we discuss smart home and security, and we also review tools related to smart home security.

Traditional security systems keep homeowners and their properties safe from intruders. However, smart home security systems offer more benefits. Home automation technology notifies homeowners of any issues so they can investigate. Man-made intelligence programs track homeowners habits and other vital information, notifying emergency personnel when necessary.

This paper introduces the development and working principle of the home intelligent emergency alarm system. In the design, STC12C5A60S2 microcontroller is used as the control core of the alarm system to control infrared sensor, MQ-2 smoke sensor, DS18B20 temperature sensor, SIM900A module, buzzer, LCD1602 display screen and GSM module. The circuit corresponding to each module is designed, and the various parts of the circuit are integrated to complete the required functions.

Keywords: smart home, microcontroller, sensor, GSM, circuit

background research

Smart Home is an efficient, comfortable, safe and convenient home environment that combines building, automation and intelligence as a platform. Home intelligence technology originated in the United States, the most representative X-10 technology, through the X-10 communication protocol, the network system can achieve resource sharing among various devices. It is widely accepted and applied because of its simple wiring, flexibility and easy expansion. To date, more than 200 million X-10 technology products have been sold and are used by more than 6 million households in the United States alone. Automated smart homes are no longer passive buildings, but instead have become tools that help homeowners make the most of their time, making homes more comfortable, safe, efficient, and energy efficient.

research related concepts

There is a certain relationship between MCU and embedded systems and the Internet of Things. From the beginning of the embedded system, it is possible to reduce embedded software and hardware, mainly the technology that professional computers have strict requirements on cost, size and power consumption. It may be more abstract to say that the banks ATM machine is an embedded system, but its operating system is an XPE embedded version. This XPE embedded system is obtained by reducing the XP system, and the hardware is also specially applied to ATM machines, which can be understood as a kind of hardware reducibility. This is an embedded system. Since you have the word 'system' in your question, it can be understood as an MCU running a Linux or Android system, with a specific purpose device handling the system as a core function. Most of them are used in gateway devices, which require human-computer interaction devices and can run many programs. A microcontroller can be understood as a simplified version of a computer CPU. and low power consumption, can add external circuits (ie can add or subtract hardware), for software, you can use whatever you need. From this point of view, the single-chip microcomputer system is also an embedded system, which can be understood as MCU with limited computing power, memory and peripherals, such as 51 single-chip microcomputer and STM32 single-chip microcomputer. The basic functions of the developed product are relatively simple, and only one program runs. First, make sure you have the correct template for your paper size. This template has been customized for US-letter paper size output. If you are using A4 size paper, please close this file and download the 'MSW_A4_format' file. The Internet of Things, hence its name, means that everything can be connected to the Internet. It is reasonable to say that as long as the communication equipment is OK, but the power supply problem is difficult to solve, so the power consumption is small, so the MCU is a good solution.

Therefore, the relationship between the three is that the Internet of Things requires a low-power MCU and other systems. MCU is an embedded system.

Entry-level MCUs do not represent core competencies. It can only implement some simple problems. It can only be said that you know too little, the microcontroller has several difficulties: high-frequency wiring. High frequency mainly refers to the processing speed exceeding 100MHz (not entirely in the category of single-chip microcomputer, such as DSP and embedded or cortex, but these are based on single-chip microcomputer, which is also the field of single-chip microcomputer in the commercial application market). At this speed, there are complex effects on the transmission wires of the signal, for example a group of 8 is transmitted on wires of different lengths caused by uneven arrival of data. Low frequency or this error is not distance divided by speed (if distance is determinate and speed is slow then time error is smaller), but high frequency signal is too fast and this error cannot be ignored (affects timing). The relationship between signal-interfering wires is becoming more and more prominent. Impedance matching should also be considered. There is no good theoretical and practical basis. The PCB board schematic you draw for you is also a waste board. The second is the theoretical algorithm, that is, the software part. Have you

剩余内容已隐藏，支付完成后下载完整资料

英语译文共 32 页，剩余内容已隐藏，支付完成后下载完整资料

资料编号：[590674]，资料为PDF文档或Word文档，PDF文档可免费转换为Word