CN107918285A - A kind of Intelligent control system for household appliances - Google Patents

Abstract

The invention relates to an intelligent control system for household electrical appliances. Its technical characteristics are: it includes an electrical appliance control terminal and a mobile phone client. The electrical appliance control terminal is composed of a main controller module, an environmental sensor, a socket remote control module, an infrared transceiver and a wireless network module. The main controller module is connected with the environment sensor, socket remote control module, infrared transceiver and wireless network module, and the mobile phone client is a mobile phone application program running on the Android system, which communicates with the electrical control terminal through the wireless network. The invention has a reasonable design and can realize the wireless remote control function of the home appliances without modifying the home appliances. At the same time, the temperature and humidity, smoke concentration and ambient brightness information in the home can be collected through sensors, and these data will be transmitted to the mobile phone client for users to know In addition, when the smoke concentration exceeds the threshold set by the user, an alarm will be issued, which has the characteristics of low cost, easy implementation, and convenient use.

Description

An intelligent control system for household appliances

technical field

The invention belongs to the technical field of Internet of Things intelligent electrical control, in particular to an intelligent control system for household electrical appliances.

Background technique

The Internet of Things smart home has developed rapidly in recent years. With the development of the Internet and the continuous innovation of technology, more and more smart home products have emerged on the market. Coupled with the continuous development of smart mobile devices and the continuous enrichment of functions, anyone These smart home appliances can be controlled by picking up a mobile phone anywhere, fully realizing the Internet access of home appliances and the remote control function of mobile terminals.

Since the current smart home devices emerge in endlessly, modular terminals with various functions are diverse, and there is no unified standard, the functional modules of various manufacturers are not compatible with each other. Therefore, if you want to build a smart home with rich functions in your home The system often needs to purchase many kinds of functional modules of the same brand, but the cost of implementing this solution is often expensive.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, and propose an intelligent control system for household appliances, which integrates mainstream smart home functions and remotely controls home appliances, and solves the problems of non-centralization of control terminals, scattered function modules, and difficult assembly of current smart home appliances. high cost issue.

The present invention solves its technical problem and realizes by taking the following technical solutions:

An intelligent control system for household electrical appliances, including an electrical appliance control terminal and a mobile phone client that communicate through a wireless network. The electrical appliance control terminal is composed of a main controller module, an environmental sensor, a socket remote control module, an infrared transceiver and a wireless network module. Described master controller module is connected with environment sensor, socket remote control module, infrared transceiver, wireless network module, realizes collecting sensor data, sending and receiving network data and household appliance control function; Mobile client is the mobile phone application program that runs on Android system , which communicates with the electrical control terminal through a wireless network to realize network configuration of the electrical control terminal, control of the electrical control terminal, data reception, and management of historical data.

Described environment sensor comprises temperature-humidity sensor, brightness sensor and smoke sensor; Described temperature-humidity sensor adopts DHT11 sensor and is connected with the single bus interface of main controller module, and described brightness sensor adopts BH1750FVI sensor and is connected with main controller module The I2C interface is connected, and the smoke sensor adopts the MQ-2 sensor and is connected with the A/D conversion interface of the main controller module.

The socket remote control module is composed of a socket remote control terminal and a socket control terminal. The socket remote control terminal and the socket control terminal communicate through 315MHz wireless super-regenerative communication. The socket remote control terminal is connected with the I/O interface of the main controller module.

The main controller module is connected with a wireless network module through a serial port, and the wireless network module adopts an ESP8266 communication module.

The mobile phone client includes a network communication function module, an electrical appliance control terminal configuration function module, a sensor data processing module, a switch remote control function module, a historical data management module and a historical data curve drawing function module.

The electrical appliance control end communicates with the mobile phone client using the UDP protocol.

Advantage and positive effect of the present invention are:

1. The present invention can collect home temperature and humidity, smoke concentration and ambient brightness information through sensors without modifying home appliances. In addition, there are two ways to control the home appliances: one is to connect the power supply of the home appliances to the remote control socket of the control terminal of the appliance, and control the socket through the mobile phone client to realize the control of the appliances. Indirect control; the second is to control electrical appliances through infrared transceiver module acquisition and analog remote control function, which has the characteristics of low cost, easy implementation and convenient use.

2. The present invention does not need to modify the home appliances, and the system can be directly placed within the controllable distance of the home appliances to realize the wireless remote control function of the home appliances. The appliance control terminal is used as a terminal node in the home to control appliances and collect environmental information , the mobile phone client is used to control the electrical control terminal and receive data; all operations on the electrical control terminal are completed by the client program on the mobile phone through remote control and receiving information through the wireless network.

3. The mobile phone client of the present invention does not need to connect to the cloud platform, and directly accesses the control terminal of the electrical appliance remotely through the wireless network, so as to perform remote control of the home appliance and information collection of the home environment.

4. The remote control socket in this system is not directly connected to the electrical control terminal, and the remote control socket can be placed anywhere within the signal coverage.

Description of drawings

Fig. 1 is a schematic diagram of a household appliance intelligent control system of the present invention;

Fig. 2 is the program structure and work flow diagram of the electrical appliance control terminal;

Fig. 3 is a processing diagram of the mobile phone client configuring the electrical control terminal;

Fig. 4 is a function division diagram of the mobile phone client;

Fig. 5 is a flow chart of the mobile client program.

Detailed ways

Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

An intelligent control system for household appliances, as shown in Figure 1, mainly includes two parts: an appliance control terminal and a mobile phone client, and the two communicate through a wireless network. The electrical control terminal mainly includes three functions: sending and receiving network data, collecting sensor data, and controlling the wireless socket function; the mobile phone client mainly includes three functions: network configuration of the electrical control terminal, control and data reception of the electrical control terminal, and management of historical data. The two components of the system are described below:

The electrical control end adopts a modular design and is composed of a main controller module, a temperature and humidity sensor, a brightness sensor, a smoke sensor, a socket remote control module, an infrared transceiver and a wireless network module. Among them, the main controller module is connected with the temperature and humidity sensor through the single bus interface, connected with the brightness sensor through the I ² C interface, connected with the smoke sensor through the A/D conversion interface, connected with the wireless network module through the serial port; the socket remote control module is connected by the socket The remote control terminal and the socket control terminal are composed of the two through 315MHz wireless super-regenerative communication, and the socket remote control terminal is connected to the main controller module through the I/O interface. The present invention adopts two methods to control the home appliance: one is to connect the power supply of the home appliance to the remote control socket of the control terminal of the electric appliance, and realize the indirect control of the electric appliance through the remote control of the socket by the mobile phone client; And analog remote control function to control electrical appliances. In this embodiment, the main controller module adopts Atmega328p single-chip microcomputer. The temperature and humidity sensor adopts DHT11 temperature and humidity sensor. The temperature and humidity sensor adopts a composite sensor that directly outputs temperature and humidity digital signals, and uses a single bus protocol for data transmission. This sensor has small size, low power consumption, fast response, and anti-interference Strong, high reliability and other advantages. The brightness sensor uses the BH1750FVI brightness sensor module, which uses a digital light intensity sensor with an I ² C bus interface, which can directly output the light brightness value of the environment where it is located. It is weakly dependent on the light source and has a wide range of measurable brightness. In this system, brightness acquisition is carried out in its continuous high-resolution mode. The smoke sensor uses the MQ-2 sensor, which is a sensor suitable for detecting flammable gases such as liquefied petroleum gas, alcohol, coal gas, and smoke. It has high sensitivity and good stability, especially for alkane gases. better sensitivity. The wireless network module uses the ESP8266 module, which is a WIFI network communication module, and communicates with the main controller module through a serial interface with a data transfer rate of 115200 bps in this embodiment.

The overall program structure and workflow of the electrical appliance control terminal are shown in Figure 2. When the system is powered on, some initialization operations are performed first. These operations include the function configuration of the I/O port in the main controller module Atmega328p, the register settings of the brightness sensor and the ESP8266 Initialization operation of the network module. When the initialization is complete, the program starts to execute the operation of waiting for receiving commands in a loop. Once the ESP8266 network module obtains the mobile client data, it will immediately send the data to the main controller module through the serial port, and the main controller module will follow the sent data. The pre-agreed format judges which command to respond to, and records the IP address of the client, and finally sends the processed data back to the mobile client through the ESP8266 network module.

The communication method between the control terminal of the electrical appliance and the mobile phone client is based on the UDP (User Datagram Protocol) protocol communication, and the communication between the two is carried out according to the following regulations:

1. The data format of the electrical appliance control terminal and the mobile client terminal will be unified in advance. If the data received by the other party does not conform to the specified format, it means that the data reception is abnormal. For example, for four sets of sensor data (brightness, temperature, humidity, gas concentration), the format is [L:*, T:*, H:*, G:*], where each letter corresponds to the initial letter of the sensor, Asterisks indicate corresponding values. The sensor data format sent by the electrical appliance control terminal to the mobile phone client is as follows:

[ L: brightness value ,T: temperature value , H: humidity value ,G: Gas concentration value ]

2. For the configuration information sent by the mobile client to the electrical control terminal, the electrical control terminal will respond after correctly receiving and processing the configuration information sent by the mobile client. Its process is shown in Figure 3.

3. For the sensor data sent from the electrical control terminal to the mobile client, the mobile client will set a waiting time limit after requesting the data from the electrical control terminal. If it times out or the received data is abnormal, the mobile client ignores the request and repeats. Send command to request data.

The mobile client is a mobile application on the Android platform. As shown in Figure 4, the mobile client mainly includes three pages: connection, homepage and record. Among them, the connection page includes search server, configuration server, test service and other functions; the home page includes sensor data collection, gas concentration alarm, power switch remote control, infrared collection and remote control functions; the record page includes historical data browsing and management, drawing data trend curves Function. The functional modules included in the mobile client are as follows:

1. Network communication function module: all operations required for program communication are realized by calling this module;

2. The configuration function module of the electrical control terminal is divided into three parts: searching for the address of the electrical control terminal in the same network segment, testing the connectivity with the electrical control terminal, and configuring the electrical control terminal to access the wireless network;

3. Sensor data processing module: Request sensor data from the electrical control terminal, and store each data in the database. Users can define a time period for the mobile client to automatically receive sensor data. In addition, the program can also issue a warning message when the gas concentration exceeds a user-defined threshold;

4. Switch remote control function module: control socket remote control module;

5. Historical data management module: record sensor historical record information;

6. Historical data curve drawing function module: draw a curve trend chart according to the selected historical record data.

The execution flow of the mobile application is shown in Figure 5. After the mobile application enters, first open the UDP thread, and then open the UI thread message queue to judge whether the data or user operation is received. If the received sensor data exceeds the standard, the alarm will be prompted, otherwise the log will be recorded; if there is user operation, it will be based on the corresponding The operation executes the corresponding function module.

It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, so the present invention includes and is not limited to the embodiments described in the specific implementation, and those skilled in the art according to the technology of the present invention Other implementations derived from the scheme also belong to the protection scope of the present invention.

Claims (6)

1. a kind of Intelligent control system for household appliances, including the electrical equipment control end communicated by wireless network and cell phone customer End, it is characterised in that：The electrical equipment control end is by main controller module, environmental sensor, socket remote control module, infrared transceiver Formed with wireless network module, it is the main controller module and environmental sensor, socket remote control module, infrared transceiver, wireless Mixed-media network modules mixed-media is connected, and realizes collection sensing data, transceiver network data and household electrical appliance control function；Cell-phone customer terminal It is the application program of mobile phone for operating in android system, it is communicated by wireless network and electrical equipment control end, realizes electric appliance The network configuration of control terminal, the control at electrical equipment control end and data receiver, the management function of historical data.

A kind of 2. Intelligent control system for household appliances according to claim 1, it is characterised in that：The environmental sensor bag Include Temperature Humidity Sensor, luminance sensor and smoke sensor device；The Temperature Humidity Sensor is using DHT11 sensors and and master control The single bus interface of device module processed is connected, and the luminance sensor is using BH1750FVI sensors and and main controller module I²C interface is connected, and the smoke sensor device is connected using MQ-2 sensors and with the A/D translation interfaces of main controller module Connect.

A kind of 3. Intelligent control system for household appliances according to claim 1, it is characterised in that：The socket remote control module It is made of socket remote control end, socket control terminal, the socket remote control end and socket control terminal are led to by the wireless superregeneratives of 315MHz News, socket remote control end are connected with the I/O interfaces of main controller module.

A kind of 4. Intelligent control system for household appliances according to claim 1, it is characterised in that：The main controller module It is connected by serial ports with wireless network module, which uses ESP8266 communication modules.

A kind of 5. Intelligent control system for household appliances according to claim 1, it is characterised in that：The cell-phone customer terminal bag Include network communication function module, electrical equipment control end configuration feature module, sensing data processing module, switch distant control function mould Block, historical data management module and historical data curve drafting function module.

A kind of 6. Intelligent control system for household appliances according to claim 1, it is characterised in that：The electrical equipment control end with Cell-phone customer terminal is communicated using udp protocol.