CN206975427U - A smart home system based on WIFI communication technology - Google Patents

Abstract

The utility model relates to a smart home system based on WIFI communication technology. Including: the central controller, which plays the role of data collection and connection in this design. The central controller receives the control command from the cloud through the WIFI module, and then sends it to the MCU, and the MCU sends the control command to the sub-module through the wireless communication module according to different protocols; the mobile phone control terminal is used for human-computer interaction and monitoring system Parameters; the socket control module receives the socket control command sent by the central controller to control the on-off control socket power of the relay; the infrared electrical appliance remote control module receives the remote control command from the central controller, and then controls the air conditioner, TV, etc.; the temperature and humidity sensor module, It is mainly used to monitor indoor temperature and humidity. The human body infrared sensing module is used to monitor whether there are strangers entering the room. It is a set of handheld smart home system, which is of great significance to the application of smart home.

Description

A smart home system based on WIFI communication technology

technical field

The utility model relates to a smart home system based on WIFI communication technology, in particular to an intelligent home device that can detect a plurality of indoor environmental parameters through various environmental monitoring modules and control it on a mobile phone APP terminal through a local area network or a wide area network.

Background technique

At present, smart homes are divided into wired and wireless methods in terms of connection methods. There are too many signal lines on the controller side of the wired mode, and it is quite difficult to troubleshoot problems once encountered. Its disadvantages are very prominent, such as: complicated wiring, heavy workload, high cost, difficult maintenance, and difficult networking. These shortcomings ultimately lead to the fact that wired smart homes only stay in the concept and pilot stage, and cannot be promoted on a large scale. The wireless mode has the characteristics of flexible networking mode, intelligent networking repair, powerful automatic networking networking capability, mutual relay, low power consumption, and low cost. However, the commonly used wireless mode now uses Zigbee communication technology, but Zigbee communication technology It cannot directly communicate with the mobile phone, and it is inconvenient to control the home equipment through the mobile phone, which hinders the human-computer interaction.

Utility model content

The utility model patent provides a smart home system based on WIFI communication technology. The communication mode of the smart home system uses WIFI signals not only to avoid complicated wiring, but also to connect each sub-module through WIFI signals and Internet smart phones. Monitor various indoor environmental parameters on the mobile phone.

A smart home system based on WIFI communication technology, including: a sub-module, a central controller, a wireless router, a cloud server and a mobile phone control terminal; the sub-module and the central controller are connected through WIFI; the connection between the central controller and the wireless router The connection between the wireless router and the cloud server, the cloud server and the mobile phone control terminal are all connected through the Internet;

Among them, the submodules include:

The light control module is used to receive instructions from the central controller and make the lights work;

The temperature and humidity sensor module is placed indoors to detect the indoor temperature and humidity, and transmit the collected signals to the central controller;

The socket control module is used to receive instructions from the central controller and switch the socket power on and off;

Infrared electrical appliance remote control module, placed indoors, is used to receive instructions from the central controller and make electrical appliances work through infrared transmission;

The human body infrared sensing module is placed indoors to sense indoor infrared radiation and transmit the collected signals to the central controller;

in addition,

The central controller is used to obtain the signal collected by the sensor module, analyze and process the signal and transmit data to the cloud server through the wireless router;

A wireless router is used to realize the wireless connection of the data transmission between the cloud server and the central controller;

The cloud server is used to realize the wireless connection of data transmission between the mobile phone control terminal and the central controller, and is used to store data;

The mobile phone control terminal is used to display the data sent by the central controller; and can send instructions to the central controller through the cloud server and wireless router.

In one embodiment, the central controller includes an STM32 main control chip; the temperature and humidity sensor module includes a DHT11 temperature and humidity sensor.

In one embodiment, the cloud server includes a storage device for storing data transmitted by the temperature sensor module or the human body infrared sensing module; the storage device is a hard disk, a rewritable optical disk or a flash disk.

In one embodiment, the mobile phone control terminal includes a first touch module and a second touch module; the system also includes LED lights, and the LED lights include a first color temperature light source and a second color temperature light source, the second color temperature light source The color temperature range of the first color temperature light source is 1500-2500K, and the color temperature range of the second color temperature light source is 4500-9000K; the lamp control module includes a first current control module and a second current control module; the first current control module is used to control the input into the second The current of a color temperature light source, and when the first touch module is in the pressed state, the first current control module makes the current input into the first color temperature light source cyclically change between the maximum value and the minimum value; the second current control module is used to control The current input into the second color temperature light source, and when the second touch module is in the pressed state, the second current control module makes the current input into the second color temperature light source cyclically change between the maximum value and the minimum value.

In one embodiment, the human body infrared sensing module is installed on one side of the partition, and a magnet is arranged outside the human body infrared sensing module, and the magnet and the partition are connected by a spring; an electromagnetic sensor is installed on the other side of the partition , the electromagnetic sensor is connected with the central controller, and the central controller transmits the obtained electromagnetic signal to the mobile phone control terminal.

In one embodiment, the magnetic induction distance between the magnet and the electromagnetic inductor is 1-5 cm.

Beneficial effect

The beneficial effect of the utility model is that it can carry out human-computer interaction with the smart phone, and can carry out environmental multi-parameter monitoring, intelligently control household equipment through environmental parameters, and the communication of each module completely adopts wireless communication mode, which reduces the complicated indoor environment. Wiring, easy disassembly and assembly, stable control and low energy consumption.

Description of drawings

Fig. 1 is a schematic diagram of the system structure;

Fig. 2 is a structural schematic diagram of the module system;

Fig. 3 is a schematic diagram of the mobile phone control terminal displaying environmental parameters.

Fig. 4 is an installation view of sensor-related parts with a modified structure.

Among them, 1. Human body infrared sensing module; 2. Electromagnetic sensor; 3. Partition plate; 4. Spring; 5. Magnet.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention. In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", Orientation indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation , so it cannot be interpreted as a limitation of the present utility model. In addition, ordinal numbers such as "first", "second", "third", etc., used in the claims and the description, are used to modify the claim terms and not by themselves containing any priority, prior or one claim The sequence of the claim precedes another claim or the chronological sequence in which the method steps are performed. However, it is used only as a label to distinguish, for example, a claim element bearing a particular name from another element bearing the same name (rather than for ordinal belonging), to distinguish an element of a claim. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present utility model, "plurality" means two or more, unless otherwise specifically defined.

It will be understood that when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element with intervening elements interposed therebetween. Unless clearly stated to the contrary, the terms "comprising" and "having" should be understood as expressing the inclusion of the listed elements rather than the exclusion of any other elements.

As used herein, the words "comprises", "comprising", "having" or any other variation thereof are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus comprising listed elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to the process, method, article, or apparatus.

The smart home cloud control system will eventually realize the remote monitoring of home lights, sockets, switches of infrared remote control appliances, indoor temperature and humidity and management alarm system on the mobile phone application.

Using the "Gizwits Cloud" IoT technology solution, the mobile phone application can maintain fast data communication with the central controller. The central controller is the core of the whole design, and it can play a link between the past and the future. The scheme of using the STM32 chip as the main control chip and the WIFI module as the central controller is designed. The STM32 main control chip is responsible for processing the data transmitted from each sub-module through the WIFI signal, and repackaging and distributing the data. The WIFI module is responsible for communicating with the router and performing data interaction with the subordinate sub-modules. The light control module is responsible for switching on and off the light, the socket control module is responsible for switching on and off the socket power supply, the infrared electrical appliance remote control module is responsible for controlling the infrared remote control electrical appliances, the temperature and humidity sensor module is responsible for detecting the indoor temperature and humidity, and the human body infrared sensing module is responsible for monitoring whether there are strangers In the event of a home break-in, all sub-modules maintain wireless communication with the central controller. Therefore, the entire smart home cloud control system is divided into seven parts: mobile phone control terminal, central controller, light control module, socket control module, infrared electrical appliance remote control module, human body infrared sensing module, and temperature and humidity monitoring module.

The structure and function of each part are described as follows:

As shown in Figure 1, a smart home system based on WIFI communication technology includes: a sub-module, a central controller (which uses an STM32 main control chip), a wireless router, a cloud server, and a mobile phone control terminal; each of the sub-modules The modules are all connected to the central controller through WIFI; the central controller and the wireless router are connected through WIFI; the wireless router and the cloud server, and the cloud server and the mobile phone control terminal are all connected through the Internet;

The central controller is used to obtain the signal collected by the sensor module, analyze and process the signal and transmit data to the cloud server through the wireless router;

A wireless router is used to realize the wireless connection of the data transmission between the cloud server and the central controller;

The cloud server is used to realize the wireless connection of data transmission between the mobile phone control terminal and the central controller, and is used to store data;

The mobile phone control terminal is used to display the data sent by the central controller; and can send instructions to the central controller through the cloud server and wireless router.

Among them, the submodules include:

Light control module, when the user sends a light work command through the mobile phone control terminal, the command is sent to the central controller through the cloud server and wireless router, and the central controller converts it into a corresponding control signal, and the light control module receives the central controller. commands, and makes lamps work;

The temperature and humidity sensor module is placed indoors to detect indoor temperature and humidity. After digital-to-analog conversion, the collected signal is transmitted to the central controller. The central controller sends the data to the mobile phone control terminal. The user can remotely Understand indoor temperature and humidity information; at the same time, cloud servers can also be used to store temperature and temperature information.

Socket control module, when the user sends the socket opening and closing work command through the mobile phone control terminal, the command is transmitted to the central controller through the cloud server and wireless router, and the central controller converts it into a corresponding control signal, and the socket control module receives the central control signal. The command of the device, and make the socket power switch;

The infrared appliance remote control module is placed indoors. Its main function is to receive remote control instructions from the central controller through the WIFI communication module. Controller, the central controller interprets and reorganizes the received remote control commands, and then forwards the remote control commands through the infrared transmitter module, and then controls air conditioners, TVs, etc.

Human body infrared sensor module, if the owner leaves the room, he can turn on the human body infrared sensor module to monitor whether there is any human intervention in the room at all times. Once someone breaks in, it will report to the central controller through the WIFI signal, and then the central controller will send the information to the user mobile phone control terminal.

They form a large system through wireless communication. After turning on the power of the seven small systems, the communication modules between the small systems will automatically shake hands and connect, and the smart home cloud control system will officially enter the running state. After the smart gateway is powered on, it maintains heartbeat communication with the WIFI module. STM32 uploads its status to the cloud through the WIFI module every once in a while, and then downloads the data points of the mobile phone control terminal from the cloud and saves them in the STM32 database. After the STM32 saves the data in the database through the above communication, it will integrate and analyze the data to determine whether there is a switch light, whether there is a stranger intervening, whether the socket is turned on, etc. After the operation is completed, these control instructions will be repackaged and put into the sending database, and broadcasted through the wireless communication module in the sending mode. After receiving the data packets from the central controller, modules such as sockets, infrared, and electric lights will extract their own part of the data according to the communication protocol, and then save them in their respective databases. The sub-module will always check whether the control command parameters in the database have changed. Once there is a data change, it will execute actions to control the lighting of lights, air conditioning temperature adjustment, human body infrared alarm, socket open status, and temperature and humidity upload.

In one embodiment, the mobile phone control terminal is provided with a first touch module and a second touch module; the smart home system also includes an LED light, and the LED light includes a first color temperature light source and a second color temperature light source , the color temperature range of the first color temperature light source is 1500-2500K, and the color temperature range of the second color temperature light source is 4500-9000K; the lamp control module includes a first current control module and a second current control module; the first current control module is used to control input The current input into the first color temperature light source, and when the first touch module is in the pressed state, the first current control module makes the current input into the first color temperature light source cyclically change between the maximum value and the minimum value; the second current control module uses To control the current input into the second color temperature light source, and when the second touch module is in the pressed state, the second current control module makes the current input into the second color temperature light source cyclically change between the maximum value and the minimum value.

When in use, the first color temperature light source and the second color temperature light source can be installed in the same LED lampshade. Since the color temperature of the first color temperature light source and the second color temperature light source are quite different, the light emission between them is mixed. Finally, different color effects can be produced; and because the luminous intensity of the LED light source is in a positive linear relationship with the current intensity passing through it, more color mixing can be achieved by adjusting the light intensity of the first color temperature light source and the second color temperature light source Effect: when the user operates through the control terminal of the mobile phone, first press and hold the first touch-press module, at this time, the touch-press signal is transmitted to the central controller, and the central controller transmits the signal to the first current control module, and the current control module Let the current input to the first color temperature light source change cyclically between the maximum value and the minimum value, that is, the current cycle "increase-decrease-increase-decrease...", until the user is satisfied, release the first touch pressure module; after the user has adjusted the first color temperature light source, adjust the light intensity of the second color temperature light source in the same way, so that the second color temperature light source and the first color temperature light source match each other to achieve the lighting aesthetics expected by the user. If the user is not satisfied at this time, the first color temperature light source can be adjusted again until it meets the requirements.

In actual use, the human body infrared sensing module 1 is installed on indoor walls, partitions and other components. If an illegal entrant covers the infrared sensor through a partition, cloth, etc., the sensor will fail to work normally. problem, the normal monitoring function cannot be performed. An improvement of the utility model, as shown in Figure 4, the human body infrared sensing module 1 is installed on one side of the partition 3, and the human body infrared sensing module 1 is provided with a magnet 5 outside, and a spring is passed between the magnet 5 and the partition 3 4 connection; an electromagnetic inductor 2 is installed on the other side of the partition 3, and the electromagnetic inductor 2 is connected with the central controller, and the central controller transmits the obtained electromagnetic signal to the mobile phone control terminal. In particular, the magnetic induction distance between the electromagnetic inductor 8 and the magnet is 1-5 cm. Therefore, when an object moves near the sensor and presses the magnet down to the set distance, the electromagnetic inductor will obtain an induction signal, and the induction signal After being transmitted to the central control module, it can be sent to the mobile phone immediately, so that the user can immediately know that there is an obstruction near the sensor.

Claims (6)

1. A smart home system based on WIFI communication technology, characterized in that it includes: a sub-module, a central controller, a wireless router, a cloud server and a mobile phone control terminal; the sub-module and the central controller are connected by WIFI; the central The controller and the wireless router are connected through WIFI; the wireless router and the cloud server, and the cloud server and the mobile phone control terminal are all connected through the Internet; Among them, the submodules include: The light control module is used to receive instructions from the central controller and make the lights work; The temperature and humidity sensor module is placed indoors to detect the indoor temperature and humidity, and transmit the collected signals to the central controller; The socket control module is used to receive instructions from the central controller and switch the socket power on and off; Infrared electrical appliance remote control module, placed indoors, is used to receive instructions from the central controller and make electrical appliances work through infrared transmission; The human body infrared sensing module is placed indoors to sense indoor infrared radiation and transmit the collected signals to the central controller; in addition, The central controller is used to obtain the signal collected by the sensor module, analyze and process the signal and transmit data to the cloud server through the wireless router; A wireless router is used to realize the wireless connection of the data transmission between the cloud server and the central controller; The cloud server is used to realize the wireless connection of data transmission between the mobile phone control terminal and the central controller, and is used to store data; The mobile phone control terminal is used to display the data sent by the central controller; and can send instructions to the central controller through the cloud server and wireless router. 2. The smart home system based on WIFI communication technology according to claim 1, characterized in that, the central controller includes an STM32 main control chip; the temperature and humidity sensor module includes a DHT11 temperature and humidity sensor. 3. The smart home system based on WIFI communication technology according to claim 1, wherein the cloud server includes a storage device for storing the data transmitted by the temperature sensor module or the human body infrared sensing module; the storage device Is it a hard disk, a rewritable CD, or a flash drive. 4. The smart home system based on WIFI communication technology according to claim 1, characterized in that, the mobile phone control terminal is provided with a first touch module and a second touch module; the system also includes LED lights, said The LED lamp includes a first color temperature light source and a second color temperature light source, the color temperature range of the first color temperature light source is 1500-2500K, and the color temperature range of the second color temperature light source is 4500-9000K; the electric light control module includes a first current control module and a second color temperature control module. Two current control modules; the first current control module is used to control the current input into the first color temperature light source, and when the first touch module is in the pressed state, the first current control module makes the current input into the first color temperature light source at the maximum and the minimum value; the second current control module is used to control the current input into the second color temperature light source, and when the second touch module is in the pressed state, the second current control module makes the input into the second color temperature light source The current cycles between a maximum and minimum value. 5. The smart home system based on WIFI communication technology according to claim 1, characterized in that, the human body infrared sensing module is installed on one side of the clapboard, and the human body infrared sensing module is provided with a magnet outside, between the magnet and the clapboard It is connected by a spring; an electromagnetic inductor is installed on the other side of the partition, and the electromagnetic inductor is connected with the central controller, and the central controller transmits the obtained electromagnetic signal to the mobile phone control terminal. 6. The smart home system based on WIFI communication technology according to claim 5, characterized in that the magnetic induction distance between the magnet and the electromagnetic inductor is 1-5 cm.