CN205787662U - A kind of smart home environment detection and control system - Google Patents

Abstract

The utility model provides an intelligent home environment detection and control system, which comprises a light intensity detection module, a temperature and humidity detection module, a cooling module, a voice module and a keyboard scanning module. Its characteristic is: use ATMEGA16 single-chip microcomputer as the microcontroller, monitor the indoor temperature, humidity and light indicators in real time, and compare them with the maximum value of the user's preset indicators, and use this as a basis to intelligently control the indoor light source and air-conditioning equipment. And it can give voice prompt information through the detection of temperature and humidity. The system not only fully considers the comfort of the human body, but also can close the corresponding equipment when the temperature and light meet the closing conditions, so as to save energy. It is easy to operate, convenient to control, and has strong practicability.

Description

A smart home environment detection and control system

technical field

The utility model belongs to the field of environment control equipment, in particular to a comprehensive detection and control system for home environment.

Background technique

In recent years, people's requirements for the comfort of the modern urban home environment are increasing day by day, and at the same time, the requirements for intelligent control are getting higher and higher. This utility model aims at this demand, combined with the actual characteristics of the home environment, and proposes a comprehensive detection temperature, Smart home system for humidity and light and related control.

Utility model content

The purpose of the utility model is to provide a smart home environment detection and control system with strong reliability, high use value and convenient control.

The utility model is realized as follows: a smart home environment detection and control system, including a microcontroller, a light intensity detection module, a temperature and humidity detection module, a cooling module, a voice module and a keyboard scanning module, is characterized in that: the ATMEGA16 single-chip As a microcontroller, the microcontroller is respectively connected to the sensor of the light intensity detection module, the sensor of the temperature and humidity detection module, the cooling module, the humidifier, the voice module and the keyboard; wherein, the DC motor drive of the cooling module is connected to the air conditioner, and the microcontroller The air conditioner is controlled by a DC motor, and the microcontroller controls the voice broadcast of the voice module through serial port communication; the system monitors the indoor temperature, humidity and light indicators in real time, and compares them with the maximum values of the indicators preset by the user. As a basis, it intelligently controls the indoor light source and air conditioner, and can give voice prompt information through the detection of temperature and humidity.

The system also includes a display screen, a power circuit, a clock circuit and a reset circuit, and the microcontroller is also connected to the display screen, the power circuit, the clock circuit and the reset circuit respectively.

The main contribution and features of this utility model are: to monitor the indoor environment in real time, and to control the corresponding equipment according to the monitoring results, so that the environment can fully meet the comfort requirements of the human body, and when the temperature and light meet the closing conditions, Turn off the corresponding equipment to save energy.

Description of drawings

Fig. 1 is a schematic diagram of the module composition of an indoor home environment detection and control system;

Figure 2 is a flow chart of the environment detection and control system software;

detailed description

The utility model is described in more detail below in conjunction with accompanying drawing example:

Referring to FIG. 1 , this embodiment provides a smart home environment detection and control system. The system includes a microcontroller, a power supply circuit, a clock circuit, a reset circuit, a light intensity detection module, a temperature and humidity detection module, a cooling module, a voice module and a keyboard scanning module.

The microcontroller is an ATMEGA16 single-chip microcomputer, which is the control module of the whole system, and realizes the monitoring of temperature, humidity, and light conditions and the corresponding regulation of the air-conditioning and lighting systems.

The light intensity module uses a photosensitive diode to convert the collected light physical signal into an electrical signal, and then converts the electrical signal into a digital signal through an analog/digital converter, and the microcontroller performs corresponding operations according to the above digital signal To realize the automatic control of the light in the living room.

The specific method of automatically controlling indoor lighting is as follows: when the light intensity exceeds the highest preset value, automatically turn off the indoor light source and draw the curtains; when the light intensity is between the highest preset value and the lowest preset value, automatically turn on the Curtains; when the minimum preset value is lower than, the room light source is automatically turned on.

The temperature and humidity detection module adopts SHT75 digital temperature sensor to collect indoor temperature information, and directly outputs digital information of temperature; the humidity information collection adopts AHT2M1 humidity capacitive humidity measurement module, which directly outputs voltage value, which is convenient for subsequent processing. The microcontroller performs corresponding operations according to the temperature and humidity information collected above to realize automatic control of indoor temperature and humidity.

The specific method of automatically controlling the indoor temperature is: when the indoor temperature exceeds the highest preset value, turn on the cooling mode of the air conditioner; when the indoor temperature is lower than the lowest preset value, turn on the heating mode of the air conditioner.

The specific way of automatically controlling the indoor humidity is: when the indoor temperature is lower than the minimum preset value, turn on the humidifier.

The display is an LCD12846 liquid crystal display, which is used to display real-time indoor humidity, temperature and light, time, date and other information.

The function of the keyboard module is that the user can set the upper and lower limits of indoor temperature, humidity and light.

The power indicator light in the power supply circuit indicates whether it is powered on.

The system software design is mainly composed of display module, user setting module, signal acquisition machine, temperature, light intensity control module, serial port communication and other parts. The main design flow chart is shown in Figure 2.

The above descriptions are only preferred implementation cases of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. new type of protection.

Claims (1)

1. smart home environment detection and a control system, including microcontroller, intensity of illumination detection module, Temperature and Humidity Module, cooling module, voice module and keyboard scan module, it is characterised in that: using ATMEGA16 single-chip microcomputer as microcontroller, Microcontroller connects the sensor of intensity of illumination detection module, the sensor of Temperature and Humidity module, cooling module, humidification respectively Device, voice module, display screen and keyboard,

A) DC motor Driver of above-mentioned cooling module is connected with air-conditioning, and microcontroller controls air-conditioning by direct current generator, i.e. When indoor temperature exceedes the highest preset value, open air conditioner refrigerating pattern；When indoor temperature is less than minimum predetermined value, open sky Modulation heat pattern；

B) microcontroller controls the voice broadcast of voice module by serial communication；

C) above-mentioned intensity of illumination detection module uses light sensitive diode that the physical signalling of the illumination collected is converted into the signal of telecommunication After, then converting electrical signals into digital signal by A/D converter, microcontroller is made according to above-mentioned digital signal accordingly Operation realizes the illumination automatically controlling in room, i.e. when intensity of illumination exceedes the highest preset value, is automatically switched off indoor light source And draw the curtain together；When intensity of illumination is between the highest preset value and minimum predetermined value, automatically open up curtain；Less than minimum predetermined During value, automatically open up room light source；

D) Temperature and Humidity module uses SHT75 digital temperature sensor to gather indoor temperature information, the number of direct output temperature Word information；Humidity information collection uses AHT2M1 humidity capacitive humidity measurement module, direct voltage output value, it is simple to follow-up place Reason, microcontroller according to the above-mentioned humiture information collected make corresponding operation realize automatically controlling the degree of indoor wet with Temperature, i.e. when indoor temperature is less than minimum predetermined value, opens humidifier, when indoor temperature exceedes the highest preset value, opens Air conditioner refrigerating pattern；When indoor temperature is less than minimum predetermined value, open air-conditioning heating pattern.