CN201589976U - A smart home system based on ZigBee technology - Google Patents

Abstract

The utility model discloses an intelligent home system based on ZigBee technology, which includes a plurality of household devices, and also includes a home control center, a relay controller, a hand-held controller and a control module based on ZigBee technology. The home control center communicates with the relay controller to form command information and send it to the relay controller. The relay controller converts the command information of the home control center into ZigBee control commands and sends them to the control module based on ZigBee technology; handheld control The controller sends ZigBee control commands to the control module based on ZigBee technology through human-computer interaction, or directly sends infrared control commands to realize the control of household equipment; Operate household equipment. The utility model has the advantages of low power consumption, large coverage, strong safety, convenient upgrading and the like.

Description

A smart home system based on ZigBee technology

technical field

The utility model belongs to the technical field of smart home control, in particular to a smart home system based on ZigBee technology.

Background technique

Smart Home (Smart Home), also known as smart residence. Smart home is an efficient, comfortable, safe, convenient and environment-friendly living environment based on the residence as a platform, combining construction, network communication, information appliances, equipment automation, and integrating systems, structures, services, and management.

As a system, smart home uses advanced computer technology, network communication technology and integrated wiring technology to organically combine various subsystems related to home life. Through overall management, home life is more comfortable, safe and effective. . At present, the traditional home intelligent control system generally has the following implementation methods: 1. It is established through wired methods, such as LonWorks, CEBus, X-10, CAN, etc., but the wired network has the disadvantages of troublesome wiring, complicated deployment, and poor scalability; 2. Use infrared control, Bluetooth, 802.11 wireless LAN and other wireless network technologies to build a smart home system, but there are still shortcomings in the use of these methods: if infrared control is used, the transmission distance is short, and it needs to be pointed when sending signals; , 802.11 wireless local area network, the programming is more complicated and the chip price is more expensive.

ZigBee is an emerging wireless network technology, which coordinates and communicates among thousands of tiny sensors according to the 802.15.4 standard. ZigBee has the characteristics of low power consumption, low cost, low transmission rate, close distance between adjacent nodes, short delay, high capacity, high security, etc. As a kind of wireless network, ZigBee also has greater flexibility, flow It not only saves the cost and energy spent on integrated wiring, but also conforms to the communication characteristics of the home network.

The Chinese patent application number is 200710039151.8, and the document titled "Smart Home Control System Based on Telephone and ZigBee Technology" discloses a smart home control system, including a home control center and several wireless communication control modules based on ZigBee technology. The ZigBee wireless communication module is built into the home control center and each control module, through these ZigBee wireless communication modules, data or instructions are transmitted between the control center and the control module, but it has the limitation of limited transmission distance; in addition, the home control The center is connected to the telephone network, and the control of the entire system can be realized through the home telephone or remote telephone, but the use of telephone also has disadvantages such as unstable signal and high tariff.

Utility model content

The purpose of the utility model is to overcome the shortcomings and deficiencies of the prior art and provide a smart home system based on ZigBee technology. The utility model has the advantages of low cost, low power consumption, large coverage, strong security, simple operation and upgradeability. , Easy to update and so on.

The purpose of this utility model is achieved by the following technical solutions: a smart home system based on ZigBee technology, including a plurality of household equipment, also includes:

It is used to communicate with the relay controller, form command information and send it to the relay controller to realize the control and monitoring of household equipment, and receive the status information of each household equipment sent by the relay controller, and display the status of each household equipment. control center;

It is used to convert the command information of the home control center into ZigBee control commands and send them to the control module based on ZigBee technology. At the same time, it serves as a data transfer station for smart home systems and a relay controller for data integration;

A handheld controller used to send ZigBee control commands to the control module based on ZigBee technology through human-computer interaction, or directly send infrared control commands to control household devices;

And it is used to control the household equipment according to the ZigBee control command of the relay controller or the handheld controller, and send the status information of the household equipment to the relay controller, or send the status information of the household equipment to the central controller through the handheld controller The relay controller is the ZigBee technology-based control module sent by the relay controller to the home control center.

In order to better realize the utility model, the household equipment includes sensors, lighting equipment, infrared household appliances and other household appliances.

Preferably, the control module based on ZigBee technology is one or more of the following modules:

The socket switch module is used to control the switching value of household appliances according to the ZigBee control command of the relay controller or the handheld controller;

A brightness adjustment module used to control the switching value of lighting equipment and adjust its brightness according to the ZigBee control command of the relay controller or handheld controller;

The security monitoring module is used to detect the environmental status according to the ZigBee control command of the relay controller or the handheld controller, and realize the arming, disarming and alarming by driving and detecting the sensor.

The home control center includes:

power supply;

A processor for analyzing data information and forming command information;

LCD touch screen used to display the status of each household device and realize human-computer interaction;

and a serial port communication module for communicating with the relay controller and sending the command information of the processor to the relay controller.

Preferably, the home control center may also include:

A GSM transceiver for connecting to the user's mobile phone;

A wireless network card for connecting to a wireless network;

A LAN network card for connecting to a LAN network;

And/or a USB interface module for connecting to a computer.

The relay controller includes:

It is used to connect the home control center and the single-chip microcomputer, receive the command information of the home control center and send it to the single-chip microcomputer, and send the status information of each household appliance of the single-chip microcomputer to the serial communication module of the home control center;

It is used to analyze the command information of the home control center and form a ZigBee control command to send to the ZigBee wireless communication module, and send the status information of each home appliance device of the ZigBee wireless communication module to the single-chip microcomputer of the serial communication module;

and a ZigBee wireless communication module for sending ZigBee control commands to the control module based on ZigBee technology.

The handheld controller includes:

A human-computer interaction module for exchanging information data with users;

A microcontroller that converts the interactive information of the human-computer interaction module into ZigBee control commands or infrared control commands;

Send the ZigBee control command of the single-chip microcomputer to the ZigBee wireless communication module of the control module based on ZigBee technology;

An infrared communication module for sending the infrared control command of the single-chip microcomputer to the infrared home appliance device;

and memory for storing remote control code information.

The socket switch module specifically includes:

Used to communicate with the relay controller or handheld controller, send the ZigBee control command of the relay controller or handheld controller to the single-chip microcomputer, and send the status information of the household appliances of the single-chip computer to the ZigBee wireless of the relay controller or handheld controller communication module;

It is used to send the control level to the corresponding pin according to the ZigBee control command of the relay controller or the handheld controller, detect the status of the home appliance and send the status information to the single-chip microcomputer of the ZigBee wireless communication module;

and a switching value control module for controlling the switching value of the household appliances according to the control level of the single chip microcomputer.

The brightness adjustment module specifically includes:

Used to communicate with the relay controller or handheld controller, send the ZigBee control command of the relay controller or handheld controller to the single-chip microcomputer, and send the lighting device status information of the single-chip computer to the ZigBee wireless relay controller or handheld controller communication module;

It is used to send control pulses to the corresponding pins according to the ZigBee control commands of the relay controller or hand-held controller, detect the status of the lighting equipment and send the status information to the single-chip microcomputer of the ZigBee wireless communication module;

And a power control module for controlling the switching value of the lighting equipment and adjusting its brightness according to the control pulse of the single chip microcomputer.

The security monitoring module specifically includes:

Used to communicate with the relay controller or handheld controller, send the ZigBee control command of the relay controller or handheld controller to the single-chip microcomputer, and send the sensor status information of the single-chip microcomputer to the ZigBee wireless communication of the relay controller or handheld controller module;

It is used to drive and detect the sensor according to the ZigBee control command of the relay controller or the handheld controller, and send the status information of the sensor to the single-chip microcomputer of the ZigBee wireless communication module;

And the sensor interface module used to transmit the drive, detection and status information of the sensor.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

First, the use of wireless communication technology makes the installation and use of the entire system more flexible and convenient because it does not need to be rewired in the user's home, which is conducive to product promotion. The wireless communication method based on ZigBee technology has the characteristics of low cost, low power consumption and large coverage compared with the current control technologies such as Bluetooth and infrared. And because it conforms to the communication characteristics of the home network, with the further development of wireless network technology, it will greatly promote the process of home network intelligence.

Second, the home control center is equipped with a GSM transceiver, wireless network card, LAN network card, USB interface, etc., which can be directly connected to the user's mobile phone, computer, and network, which is convenient for the user to remotely control, especially in an emergency, through the early warning of the security monitoring module function, users can perform remote control, which enhances the safety and reliability of the entire system. At the same time, through computers and the Internet, it is also convenient for system upgrades and updates.

Third, the relay controller and the home control center of the present utility model are set to separate and independent modes. The system can be provided with multiple relay controllers. Each relay controller has a routing selection function. The controller can control the control modules based on ZigBee technology in different ZigBee wireless control networks, which not only saves the trouble of integrated wiring, reduces the cost, expands the control range, but also reduces the response time of each control module based on ZigBee technology , increasing the speed of the system.

Description of drawings

Fig. 1 is the schematic diagram of a kind of smart home system based on ZigBee technology of the present utility model;

Fig. 2 is a structural schematic diagram of the utility model household control center;

Fig. 3 is the structural representation of the utility model relay controller;

Fig. 4 is a schematic structural view of the handheld controller of the present invention;

Fig. 5 is a schematic structural view of the socket switch module of the present invention;

Fig. 6 is a structural schematic diagram of the brightness adjustment module of the present invention;

Fig. 7 is a schematic structural diagram of the security monitoring module of the present invention.

Detailed ways

The utility model will be described in further detail below in conjunction with the embodiments and accompanying drawings, but the implementation of the utility model is not limited thereto.

Example

A smart home system based on ZigBee technology, including multiple household devices (specifically sensors, lighting equipment, infrared home appliances and other home appliances), and also includes:

The home control center is used to communicate with the relay controller, form command information and send it to the relay controller to realize the control and monitoring of household devices, and receive the status information of each household device sent by the relay controller, and display the status information of each household device. the status of the device;

The relay controller is used to convert the command information of the home control center into ZigBee control commands and send them to the control module based on ZigBee technology. At the same time, it serves as a data transfer station for the smart home system to realize data integration;

The handheld controller is used to send ZigBee control commands to the control module based on ZigBee technology through human-computer interaction, or directly send infrared control commands to realize the control of household devices, and at the same time send the operation information to the home control center through the relay controller ;

And the control module based on ZigBee technology is used to control the household equipment according to the ZigBee control command of the relay controller or the handheld controller, and send the status information of the household equipment to the relay controller, or send the status information of the household equipment It is sent to the relay controller through the handheld controller, and sent to the home control center by the relay controller.

As shown in Figure 1, the home control center is connected to the relay controller, the relay controller is connected to the hand-held controller, the socket switch module, the brightness adjustment module, and the security monitoring module, and the hand-held controller is connected to the socket switch module, the brightness adjustment module, security monitoring module, and infrared home appliances are connected, and each relay controller is connected to the network.

As shown in Figure 2, the home control center is composed of a processor, a liquid crystal touch screen, a serial communication module, a GSM transceiver, a wireless network card, a LAN network card, a USB interface module and a power supply.

The home control center adopts SAMSUNG 2440 32-bit embedded processor, and uses Windows CE real-time embedded operating system as the software control platform. The processor of the home control center communicates with the relay controller through the serial communication module, analyzes the data information in the network and forms command information, sends the command information of the processor to the relay controller through the serial communication module, and uses the LCD touch panel to The screen displays the status of each household device and realizes human-computer interaction; at the same time, it is connected to the user's mobile phone through the GSM transceiver, connected to the wireless network through the wireless network card, connected to the LAN network through the LAN network card, and connected to the computer through the USB interface module, so that the The smart home system can be used in various ways, the application operation process is simple, and it has the function of remote control.

The relay controller acts as a data transfer station between different networks. The connection between the information in the ZigBee wireless control network and the external network or other processing terminals needs to be realized through the relay controller, so the relay controller is a ZigBee wireless control most important part of the network. The relay controller is a transfer station for the connection between the ZigBee wireless control network and the wired devices. It is connected with the home control center through the serial port communication module, and at the same time, it is connected with the ZigBee technology-based control module ZigBee signal through the ZigBee wireless communication module. The relay controller is responsible for sending upper-layer commands (such as status query, status control, etc.), receiving lower-layer node requests and data, and has the functions of data fusion, request arbitration and routing selection. In this smart home system, multiple relay controllers can be arranged according to the layout of household equipment, and the signals of each relay controller are connected. They have the function of routing selection. The home control center controls any Control module based on ZigBee technology.

As shown in Figure 3, the relay controller is composed of a serial port communication module, a single-chip microcomputer and a ZigBee wireless communication module. In this embodiment, the serial port communication module of the relay controller adopts RS232, the single-chip microcomputer adopts CC2430 chip, and has a built-in ZigBee wireless communication module. The single-chip microcomputer of the relay controller is connected with the home control center through the serial port communication module. The serial port communication module receives the command information of the home control center and sends it to the single-chip microcomputer. The single-chip microcomputer of the relay controller analyzes the command information of the home control center and forms a ZigBee control command to send To the ZigBee wireless communication module, the ZigBee wireless communication module sends the ZigBee control command to the control module based on ZigBee technology. The ZigBee wireless communication module sends the status information of each household device to the single-chip microcomputer, and the single-chip microcomputer fuses the data and sends it to the home control center through the serial port communication module.

As shown in Figure 4, the handheld controller is a simple handheld terminal device, which is used for wireless monitoring of the control module and infrared home appliances based on ZigBee technology. The handheld controller includes a ZigBee wireless communication module, a single-chip microcomputer, an infrared communication module, a human-computer interaction module and a memory. The single-chip microcomputer adopts a CC2430 chip, and has a built-in ZigBee wireless communication module, and the memory is an EEPram memory. The hand-held controller interacts with the user through the human-computer interaction module; because its control function requirements are relatively simple, the required display effect can be achieved by using a black and white liquid crystal display; the interactive information of the human-computer interaction module is converted into ZigBee control commands through a single-chip microcomputer , the ZigBee wireless communication module sends the ZigBee control command of the single chip microcomputer to the control module based on ZigBee technology;

At the same time, as the gateway between the Zigbee network and infrared remote control, the handheld controller is required to have an infrared transceiver function, which is used to simulate infrared remote control to control infrared home appliances. Through a pair of infrared probes (one for receiving and one for sending), pre-enter the infrared code of the remote control and store it in the EEPram of the device. When performing remote control on the infrared home appliance, read the corresponding code in the EEPram according to the interactive information , converted into an infrared control command and sent to the infrared communication module, and the infrared communication module sends the infrared control command of the single-chip microcomputer to the infrared home appliance device, so as to realize the direct control of the infrared home appliance and achieve the purpose of simulating the remote control of the home appliance.

The control modules based on ZigBee technology include: socket switch module, brightness adjustment module and security monitoring module. According to the requirements of household applications, there may also be other control modules based on ZigBee technology.

As shown in Figure 5, the socket switch module controls the switching value of household appliances according to the ZigBee control command of the relay controller or the handheld controller; the socket switch module is composed of a ZigBee wireless communication module, a single-chip microcomputer and a switching value control module, Among them, the single-chip microcomputer adopts CC2430 chip, built-in ZigBee wireless communication module, and the switching value control module is a relay. The ZigBee wireless communication module communicates with the relay controller or the handheld controller, and sends the ZigBee control command of the relay controller or the handheld controller to the single-chip microcomputer, and the single-chip microcomputer sends the control signal according to the ZigBee control command of the relay controller or the handheld controller. level to the corresponding pin, the switching value control module controls the switching value of the home appliance according to the control level of the single chip microcomputer. At the same time, the single-chip microcomputer detects the status of the household appliances and sends the status information to the relay controller or the handheld controller via the ZigBee wireless communication module.

As shown in Figure 6, the brightness adjustment module controls the switching value of the lighting equipment and adjusts its brightness according to the ZigBee control command of the relay controller or the handheld controller; the brightness adjustment module is composed of a ZigBee wireless communication module, a single-chip microcomputer and a power control module Composition, in which the single-chip microcomputer adopts CC2430 chip, built-in ZigBee wireless communication module, and the power control module is a thyristor. The ZigBee wireless communication module communicates with the relay controller or handheld controller, and sends the ZigBee control commands of the relay controller or handheld controller to the single-chip microcomputer, and the single-chip microcomputer sends control pulses according to the ZigBee control commands of the relay controller or handheld controller To the corresponding pin, the power control module controls the switching value of the lighting equipment and adjusts its brightness according to the control pulse of the single-chip microcomputer. At the same time, the single-chip microcomputer detects the status of the lighting equipment and sends the status information to the relay controller or the handheld controller via the ZigBee wireless communication module.

As shown in Figure 7, the security monitoring module detects the environmental status according to the ZigBee control command of the relay controller or the handheld controller, and realizes arming, disarming and alarming by driving and detecting sensors. The security monitoring module implements sensor driving and detection applications by connecting sensors and setting sensor types and related parameters in the underlying program. The security monitoring module reserves 3 sensor interfaces, which can be connected to switches (such as human body infrared switches) or sensors based on IIC bus (such as 18B20). When a certain state in the detection environment changes, the corresponding sensor is triggered, and the security monitoring module sends the corresponding state signal to the relay controller and processes it in the home control center to achieve the effect of environmental state detection and alarm.

The security monitoring module is composed of a ZigBee wireless communication module, a single-chip microcomputer and a sensor interface module, wherein the single-chip microcomputer adopts a CC2430 chip and has a built-in ZigBee wireless communication module. The ZigBee wireless communication module communicates with the relay controller or the handheld controller, and sends the ZigBee control command of the relay controller or the handheld controller to the single-chip microcomputer, and the single-chip microcomputer drives and detects the sensor according to the ZigBee control command of the relay controller or the handheld controller , the single-chip microcomputer sends the status information of the sensor to the relay controller or the handheld controller through the ZigBee wireless communication module, and the sensor interface module is used to transmit the driving, detection and status information of the sensor.

The above-mentioned embodiment is a preferred implementation mode of the present utility model, but the implementation mode of the present utility model is not limited by the described embodiment, and any other changes, modifications, modifications, Substitution, combination, and simplification should all be equivalent replacement methods, and are all included in the protection scope of the present utility model.

Claims (10)

1. A smart home system based on ZigBee technology, comprising a plurality of household equipment, is characterized in that, also includes: It is used to communicate with the relay controller, form command information and send it to the relay controller to realize the control and monitoring of household equipment, and receive the status information of each household equipment sent by the relay controller, and display the status of each household equipment. control center; It is used to convert the command information of the home control center into ZigBee control commands and send them to the control module based on ZigBee technology. At the same time, it is used as the data transfer station of the smart home system to realize the relay controller of data integration; A handheld controller used to send ZigBee control commands to the control module based on ZigBee technology through human-computer interaction, or directly send infrared control commands to control household devices; And it is used to control the household equipment according to the ZigBee control command of the relay controller or the handheld controller, and send the status information of the household equipment to the relay controller, or send the status information of the household equipment to the central controller through the handheld controller The relay controller is the ZigBee technology-based control module sent by the relay controller to the home control center. 2. A kind of smart home system based on ZigBee technology according to claim 1, characterized in that, said household equipment includes sensors, lighting equipment, infrared home appliances and other home appliances. 3. a kind of smart home system based on ZigBee technology according to claim 2, is characterized in that, described control module based on ZigBee technology is one or more in the following modules: The socket switch module is used to control the switching value of household appliances according to the ZigBee control command of the relay controller or the handheld controller; A brightness adjustment module used to control the switching value of lighting equipment and adjust its brightness according to the ZigBee control command of the relay controller or handheld controller; The security monitoring module is used to detect the environmental status according to the ZigBee control command of the relay controller or the handheld controller, and realize the arming, disarming and alarming by driving and detecting the sensor. 4. a kind of smart home system based on ZigBee technology according to claim 1, is characterized in that, described home control center comprises: power supply; A processor for analyzing data information and forming command information; LCD touch screen used to display the status of each household device and realize human-computer interaction; and a serial port communication module for communicating with the relay controller and sending the command information of the processor to the relay controller. 5. a kind of smart home system based on ZigBee technology according to claim 4, is characterized in that, described home control center also comprises: A GSM transceiver for connecting to the user's mobile phone; A wireless network card for connecting to a wireless network; A LAN network card for connecting to a LAN network; And/or a USB interface module for connecting to a computer. 6. a kind of smart home system based on ZigBee technology according to claim 1, is characterized in that, described relay controller comprises: It is used to connect the home control center and the single-chip microcomputer, receive the command information of the home control center and send it to the single-chip microcomputer, and send the status information of each household appliance of the single-chip microcomputer to the serial communication module of the home control center; It is used to analyze the command information of the home control center and form a ZigBee control command to send to the ZigBee wireless communication module, and send the status information of each home appliance device of the ZigBee wireless communication module to the single-chip microcomputer of the serial communication module; and a ZigBee wireless communication module for sending ZigBee control commands to the control module based on ZigBee technology. 7. a kind of smart home system based on ZigBee technology according to claim 1, is characterized in that, described handheld controller comprises: A human-computer interaction module for exchanging information data with users; A microcontroller that converts the interactive information of the human-computer interaction module into ZigBee control commands or infrared control commands; Send the ZigBee control command of the single-chip microcomputer to the ZigBee wireless communication module of the control module based on ZigBee technology; An infrared communication module for sending the infrared control command of the single-chip microcomputer to the infrared home appliance device; and memory for storing remote control code information. 8. A kind of smart home system based on ZigBee technology according to claim 3, is characterized in that, described socket switch module specifically comprises: Used to communicate with the relay controller or handheld controller, send the ZigBee control command of the relay controller or handheld controller to the single-chip microcomputer, and send the status information of the household appliances of the single-chip computer to the ZigBee wireless of the relay controller or handheld controller communication module; It is used to send the control level to the corresponding pin according to the ZigBee control command of the relay controller or the handheld controller, detect the status of the home appliance and send the status information to the single-chip microcomputer of the ZigBee wireless communication module; and a switching value control module for controlling the switching value of the household appliances according to the control level of the single chip microcomputer. 9. A kind of smart home system based on ZigBee technology according to claim 3, it is characterized in that, described brightness adjustment module specifically comprises: Used to communicate with the relay controller or handheld controller, send the ZigBee control command of the relay controller or handheld controller to the single-chip microcomputer, and send the lighting device status information of the single-chip computer to the ZigBee wireless relay controller or handheld controller communication module; It is used to send control pulses to the corresponding pins according to the ZigBee control commands of the relay controller or hand-held controller, detect the status of the lighting equipment and send the status information to the single-chip microcomputer of the ZigBee wireless communication module; And a power control module for controlling the switching value of the lighting equipment and adjusting its brightness according to the control pulse of the single chip microcomputer. 10. A kind of smart home system based on ZigBee technology according to claim 3, it is characterized in that, described security monitoring module specifically comprises: Used to communicate with the relay controller or handheld controller, send the ZigBee control command of the relay controller or handheld controller to the single-chip microcomputer, and send the sensor status information of the single-chip microcomputer to the ZigBee wireless communication of the relay controller or handheld controller module; It is used to drive and detect the sensor according to the ZigBee control command of the relay controller or the handheld controller, and send the status information of the sensor to the single-chip microcomputer of the ZigBee wireless communication module; And the sensor interface module used to transmit the drive, detection and status information of the sensor.

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