CN207742509U - SCM Based Internet of Things long-distance intelligent appliance control system - Google Patents

Abstract

The utility model discloses a kind of SCM Based Internet of Things long-distance intelligent appliance control systems, including control terminal, control module and intelligent appliance terminal, the control module includes microcontroller, the sensor assembly and wireless communication module that are connect with microcontroller, the control module connects air conditioner by drive control circuit, the intelligent appliance terminal passes through wireless communication module link control module, the wireless communication module is communicated to connect with cloud server, and the control terminal controls corresponding control module by cloud server；The control terminal is equipped with control management software, and the control management software is provided with the threshold value of multiple sensing datas, if the threshold value that the data of respective sensor acquisition are more than the respective sensor data of setting is reminded in real time.It is simple in structure, detection is comprehensive, of low cost, stability is preferable, have good application value.

Description

IoT Remote Smart Home Appliance Control System Based on SCM

technical field

The utility model belongs to the technical field of intelligent hardware control of intelligent home, and in particular relates to a remote intelligent household appliance control system of the Internet of Things based on a single-chip microcomputer.

Background technique

In today's intelligent hardware control field, smart home has been widely used in hardware technology and product development. Smart homes usually appear in combination with the Internet of Things. Therefore, the development of smart homes is ultimately the development of Internet of Things technology. Smart home connects various devices in the home through the Internet of Things technology, providing home appliance control, lighting control, telephone remote control, indoor and outdoor remote control, anti-theft alarm, environmental monitoring, HVAC control, infrared forwarding and programmable timing control, etc. functions and means. Compared with ordinary homes, smart homes not only have traditional residential functions, but also include construction, network communications, information appliances, and equipment automation, providing a full range of information interaction functions, and even saving money for various energy costs. At present, there are many smart home manufacturers at home and abroad. The companies that are better in smart home in the world include: Crestron, Legrand, and Siemens. The main bottleneck of China's smart home development. Although the smart home industry has developed rapidly, objectively speaking, China's smart homes are generally relatively backward. Whenever the reasons for the backwardness of China's smart homes are mentioned, there will be many different opinions, such as low human-computer interaction, slow response speed, and poor reliability. In fact, these are still superficial phenomena, and the bottlenecks that really affect the development of smart homes in China are:

1. Too much emphasis on technological breakthroughs. Many local smart home companies pursue a high level of technology in terms of design concepts, while ignoring the needs of all levels of the market, resulting in high costs, shrinking markets, failing to meet user needs, and unable to truly adapt to market needs.

2. The application-oriented and modern marketing model has not really been established. Local smart home manufacturers only focus on R&D, production, and the market in a narrow sense, and have not yet established a complete set of modern marketing systems and application-oriented R&D models. The traditional marketing model has played a great role in the era of planned economy, but it cannot meet the needs of the current era of popular overall solutions. Therefore, in order to quickly narrow the gap with foreign advanced companies, domestic smart home R&D companies should accelerate the transition from imitation-oriented R&D to application-oriented R&D. Especially with the rapid growth of domestic application demand, it has provided fundamental impetus for this transition, and these impetus should be utilized to track the rapid development of application technology.

3. Lack of hardware material supporting system. Due to historical reasons, the research on enterprise standardization in China's hardware R&D industry has not kept up with the rapid development of demand, resulting in a low technical level in the hardware material supporting industry. Although there have been major improvements, there is still a certain distance from the requirements of the entire industry. Therefore, research on standardization and modularization should also be placed in an important position. Also, under the condition that the technical level has not been reached, the pursuit of precision or high indicators is blindly pursued, but the relationship with stability is not properly handled. All of the above are factors restricting the development of local smart homes.

In recent years, the reliability and stability of integrated circuits in our country have been paid attention to by many aspects, and the situation has been greatly improved. The hardware industry has passed the trough stage and returned to the track of rapid development. Especially in recent years, China's domestic smart home has made great progress, especially in the research and development of general integrated circuits. The gap with foreign advanced products is rapidly narrowing. The monopoly of foreign electronic instrument giants has caused a certain impact. With the development of modularization and virtual technology, it has brought new opportunities for China's smart home industry, coupled with the increasing attention of governments at all levels, and the rapid progress of China's independent application standard research, are providing unprecedented impetus for the industry and opportunity. It can be seen from the China Electronic Information Industry Statistical Yearbook that China's smart home industry is growing rapidly at a rate of more than 30% every year. In the process of this rapid growth, there is no doubt that many new companies in the testing industry have been born, and batches of products with high reliability and stability have also been born.

In view of the above prior art, the applicant has made a beneficial design, and the technical solution to be introduced below is produced under this background.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a remote intelligent home appliance control system based on a single-chip microcomputer, which has a simple structure, comprehensive detection, low cost, good stability, and good application value.

The technical scheme of the utility model is:

A remote smart home appliance control system based on a single-chip microcomputer, comprising a control terminal, a control module and a smart home appliance terminal, characterized in that the control module includes a single-chip microcomputer, a sensor module connected to the single-chip microcomputer and a wireless communication module, and the control module Connect the air conditioner through a drive control circuit, the drive control circuit is four output relays, each output relay is driven by a triode, the smart home appliance terminal is connected to the control module through a wireless communication module, and the wireless communication module communicates with the cloud server , the control terminal controls the corresponding control module through the cloud server; the control terminal is installed with control management software, the control management software is set with a plurality of sensor data thresholds, if the data collected by the corresponding sensor exceeds the set corresponding sensor The threshold of the data is reminded in real time.

Preferably, the wireless communication module is a Bluetooth module or a WIFI module.

Preferably, the sensor module includes one or more of a DHT11 temperature and humidity sensor, a light sensor, and a carbon monoxide sensor.

Preferably, the control module is connected to the power module through a power supply voltage stabilization filter circuit.

Compared with the prior art, the utility model has the advantages of:

1. The data collected by the sensor is transmitted to the cloud server through the wireless communication module. After the user uses the mobile phone to monitor the sensor data, he can issue a targeted feedback command. The feedback command sent by the user is transmitted back to the single-chip microcomputer through the server, and then the single-chip microcomputer controls the relay to make relevant actions, thereby realizing the purpose of remote monitoring and adjusting the indoor environment at the same time.

2. It has the advantages of simple structure, comprehensive detection, low cost, good stability, etc., and has good application value.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Fig. 1 is the functional block diagram of the remote intelligent home appliance control system based on the single-chip microcomputer Internet of Things of the present invention;

Fig. 2 is the schematic diagram of the utility model LED display circuit;

Fig. 6 is a schematic diagram of a power supply voltage stabilizing filter circuit of the present invention;

Fig. 3 is the minimum system schematic diagram of the utility model STC52 single-chip microcomputer;

Fig. 4 is the schematic diagram of the utility model four-way relay output circuit;

Fig. 5 is the schematic circuit diagram of the temperature and humidity sensor DHT11 of the present invention;

Fig. 7 is the schematic diagram of the button circuit of the utility model;

Fig. 8 is the schematic diagram of the utility model ESP8266WIFI module circuit;

Fig. 9 is the APP terminal application of the utility model.

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in combination with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessarily confusing the concept of the present invention.

Example:

As shown in Figure 1, the utility model is based on a single-chip microcomputer Internet of Things remote intelligent home appliance control system, including a control terminal, a control module and a smart home appliance terminal. The control module includes a single-chip microcomputer, a sensor module connected with the single-chip computer and a wireless communication module. The control circuit is connected to the air conditioner, the smart home appliance terminal is connected to the control module through the wireless communication module, the wireless communication module communicates with the cloud server, and the control terminal controls the corresponding control module through the cloud server.

The wireless communication module is a Bluetooth module or a WIFI module, and the WIFI module is shown in FIG. 1 .

The sensor module in the figure is a DHT11 temperature and humidity sensor, and of course it can also be one or more of gas sensors such as a light sensor and a carbon monoxide sensor.

The control terminal is installed with the control management software APP, and the control management software can set the threshold of multiple sensor data. If the data collected by the corresponding sensor exceeds the threshold of the corresponding sensor data set, a real-time reminder will be given. The reminder here can be a voice message reminder. , or highlighted in red or highlighted font. The control management software APP is also used to query and display the working parameters of the smart home appliance terminal and the data collected by the sensor module, send control instructions to control the corresponding smart home appliance terminal, and perform data analysis, for example, the data collected by the sensor module is displayed in the form of a chart Display, or analyze control data, and display.

The control module is connected to the power module through a power supply voltage stabilizing filter circuit.

The control module can also be connected to the display module for displaying the indoor environment data collected by the sensor module.

As shown in Figure 1, this control architecture is mainly combined with various sensors for acquisition and feedback adjustment. The system is mainly composed of four main parts. The working circuit design of the single-chip microcomputer. This system uses STC89C52RC single-chip microcomputer, WIFI module, LCD1602, DHT11 temperature and humidity sensor. Among them, the RS232 communication port communicates with the WIFI module through the serial port, and the LCD1602 is used as a monitoring display to display real-time data. The DHT11 temperature and humidity sensor is extremely sensitive and can provide effective and accurate real-time temperature data. The control device uses two relays to control the air conditioner. The temperature rises and falls of the machine, and the remote end uses the TCP protocol to bridge the WIFI module and the cloud server, and the cloud can simultaneously receive feedback from the WIFI module and the mobile phone terminal signal.

As shown in Figure 2, it is the power supply voltage stabilization filter circuit of the system. The AMS1117-3.3V voltage stabilization filter chip is selected for voltage stabilization output, providing energy for the system circuit to work, and filtering through multiple capacitors to make the output voltage stable. Continuously provide stable energy for the system to work.

As shown in Figure 3, it is the schematic diagram of the minimum system circuit of the single-chip microcomputer. The minimum system includes the single-chip microcomputer and its necessary power supply, clock, reset and other components, which can keep the single-chip microcomputer in a normal operating state. Circuits such as power supply and clock are necessary conditions for the operation of the single-chip microcomputer. The minimum system can be used as the core part of the application system, and the single-chip microcomputer can complete more complex functions through memory expansion and A/D expansion.

The clock signal of the STC89C51 microcontroller is usually generated in two ways: one is the internal clock mode, and the other is the external clock mode. The internal clock mode is shown in Figure 3. There is an oscillation circuit inside the STC89C51 single-chip microcomputer. As long as the XTAL1 and XTAL2 pins of the single-chip microcomputer are connected with a quartz crystal (referred to as crystal oscillator), a self-excited oscillator is formed and a clock pulse signal is generated inside the single-chip microcomputer. The role of capacitors C1 and C2 in the figure is to stabilize the frequency and fast start-up, the capacitance value is 5~30pF, the typical value is 30pF. The oscillation frequency range of crystal oscillator CYS is selected between 1.2~12MHz, and the typical value is 12MHz and 6MHz.

When the RST pin of the STC89C51 single-chip microcomputer is introduced into a high level and kept for 2 machine cycles, the reset operation is performed inside the single-chip microcomputer (if the pin keeps high level, the single-chip microcomputer is in a cyclic reset state).

In the simplest power-on automatic reset circuit, the power-on automatic reset is realized by charging and discharging the capacitor of the external reset circuit. As long as the rise time of Vcc does not exceed 1ms, automatic power-on reset can be realized.

In addition to power-on reset, sometimes manual reset is required by pressing the button. This design is to use the button to manually reset. There are two types of manual reset by pressing the button: level mode and pulse mode. The level reset is realized by connecting the RST terminal with the power supply Vcc.

As shown in Figure 4, it is a schematic diagram of a four-way relay output circuit. The relay has a control system (also known as an input circuit) and a controlled system (also known as an output circuit).

The relay in the circuit is driven by a PNP transistor. When the threshold value exceeds the set value, the microcontroller will jump from high level to low level.

As shown in Figure 5, it is the schematic diagram of the LED display circuit. LCD1602A is an industrial character liquid crystal, which can display 16x02 or 32 characters at the same time. (16 columns and 2 rows). The display is mainly numbers, special symbols and graphics. In the human-computer communication interface of the single-chip microcomputer, the general output methods include the following types: light-emitting tubes, LED digital tubes, and liquid crystal displays. Light-emitting tubes and LED digital tubes are more commonly used, and the software and hardware are relatively simple.

As shown in Figure 6, it is the circuit schematic diagram of the temperature and humidity sensor DHT11. The indoor temperature will be detected by the temperature and humidity sensor DHT11, and then the data will be transmitted to the cloud server through the WIFI wireless communication module. After the user uses the mobile phone to monitor the temperature data, he can issue targeted feedback commands. The feedback command sent by the user is transmitted back to the single-chip microcomputer through the server, and then the single-chip microcomputer controls the relay to make relevant actions, thereby realizing the purpose of remote monitoring.

As shown in Figure 7, it is a schematic diagram of the button circuit. Buttons are a relatively intuitive interface to realize man-machine dialogue, and can realize different tasks that people want the single-chip microcomputer to do through buttons. The keyboard uses a non-coding keyboard. S1 is a switch button, which is used to switch the functions of wireless receiving and sending and downloading ports sharing RXD and TXD ports; power is a system control button, used to control the normal power supply of the entire system.

As shown in Figure 8, it is the schematic diagram of the ESP8266WIFI module circuit. The WIFI wireless network module based on the UART interface can realize the exchange of user serial port data to the wireless network. Through the serial port Wifi module, traditional serial devices can access the wireless network. The communication between this module and the mobile phone uses ASCII code. The mobile phone converts the code into ASCII code for transmission. UART-WIFI will receive the ASCII code and generate an interrupt to the microcontroller. This WIFI module can set and modify the password through the terminal like an ordinary router, and can also be modified and set through the configuration software, which has relatively good security performance.

As shown in Figure 9, it is the terminal application block diagram of the APP module. In order to realize the interconnection between the environmental data designed in our system and the cloud server, the temperature information collected by the sensors in the system is sent to the cloud server, and the control commands fed back by the cloud server Real-time transmission back to the microcontroller, and manipulate the relay to make corresponding actions. Through the Eclipse development environment, a scalable development platform based on java. Including man-machine friendly interface for controlling home appliances and real-time display of data.

It should be understood that the above specific embodiments of the present utility model are only used to illustrate or explain the principle of the present utility model, but not to limit the present utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model shall be included in the protection scope of the present utility model. Furthermore, the appended claims are intended to cover all changes and modifications that come within the scope and boundaries of the appended claims, or equivalents of such scope and boundaries.

Claims (4)

1. a kind of SCM Based Internet of Things long-distance intelligent appliance control system, including control terminal, control module and intelligence Household electrical appliance terminal, which is characterized in that the control module includes microcontroller, the sensor assembly being connect with microcontroller and wireless telecommunications Module, the control module connect air conditioner by drive control circuit, and the drive control circuit is four road output relays, Driven by triode per output relay all the way, the intelligent appliance terminal by wireless communication module link control module, The wireless communication module is communicated to connect with cloud server, and the control terminal controls corresponding control by cloud server Module.

2. SCM Based Internet of Things long-distance intelligent appliance control system according to claim 1, which is characterized in that institute It is bluetooth module or WIFI module to state wireless communication module.

3. SCM Based Internet of Things long-distance intelligent appliance control system according to claim 1, which is characterized in that institute It includes one or more in DHT11 Temperature Humidity Sensors, light sensor, carbon monoxide transducer to state sensor assembly.

4. SCM Based Internet of Things long-distance intelligent appliance control system according to claim 1, which is characterized in that institute It states control module and power module is connected by power supply filter circuit of pressure-stabilizing.