"In the era of smart home boom, the emergence of smart socket alleviates everyone's fear of the high price of smart home. Smart home meets everyone's longing for smart home and realizes a certain degree of intelligence. As an electronic engineer, have you challenged the smart socket? Sorting out the top 10 smart socket scheme in the circuit city, do you dare to accept the challenge?
Top10. Design of intelligent socket based on LwIP protocol stack
This design is divided into two systems: the main system is based on NXP lpc4330, runs LwIP protocol stack, and is connected with router through Ethernet; The slave system is based on Freescale kl25z, embedded in the socket, and controls the switching state of the intelligent socket through 5v-220v relay. The master and slave systems communicate through the RF chip Si4432 of silicon lab. When the user equipment is connected to the router (WiFi), it can access the master system, and view and control the working status of the slave system through interaction with the master system.
All the initialization sockets of the chip kl25z of the system are closed, while waiting to receive wireless data packets; Users log in to the web page built by the main system through the web (PC or mobile terminal), view the working status, calendar (for timing control and log recording) and other information of the smart socket, control the switch of the smart socket, so as to control any furniture appliances connected to the socket, such as induction cooker, rice cooker, fluorescent lamp, etc. at the same time, the system also has the function of timing switch, When the socket state changes, it can send mail to users in real time.
The hardware of this design includes lpc4330, kl25z, Si4432 and router; The software includes: UC OSII, LwIP, Goahead, calendar, mail sending, web page making and wireless communication protocol.
Project link: https://www.cirmall.com/circuit/1589#/details
Top9, WiFi smart socket, mature scheme, complete hardware and software project
This smart socket adopts the scheme of stm32f103c8t6 + WiFi module + cloud platform. The main functions are. Remote switch of socket, timing, reservation, power statistics, voltage, current, power detection, etc.
The application environment includes families, industries, companies, places that need to be switched on and off regularly to save electric energy. No one in the company turns off the power supply of printers and drinking fountains every day. If you add a smart socket, the situation is different.
This scheme has the advantages of low cost, convenient production, high power efficiency and energy saving.
If you want to save a little more cost, you can modify the WiFi module code and write the control part into the WiFi module. There is an SDK development kit. Eliminate external MCU. The hardware is fully compatible.
Project link: https://www.cirmall.com/circuit/4763#/details
Top8, power consumption monitor, intelligent WiFi power socket design
Function overview of intelligent WiFi power socket:
This reference design adds Wi Fi to the tidm-3outsmtstp smart power board design ® Communication function. Wi Fi connection is provided by simplelink (TM) cc32000 wireless MCU. The remote user can monitor the power consumption of the load inserted into all three sockets and control the relay to switch the power supply. Smart power boards need to be connected to maximize their role in improving energy efficiency in applications such as data centers.
Circuit characteristics of intelligent WiFi power socket:
Monitor and control three independent electrical loads via Wi Fi connection
Smart phones or tablets display active and reactive power, energy, power factor and other energy measurement parameters
The wireless controlled relay can turn on / off the power supply of a single load
SimpleLink ™ The wireless MCU integrates all Wi Fi into a single device
High efficiency flyback power architecture minimizes the number of BOMs and reduces costs
Project link: https://www.cirmall.com/circuit/4225#/details
Top7. Smart socket design based on Internet of things, relay and mobile phone remote control
Circuit design analysis of intelligent socket:
The following is a preliminary formulation of the circuit of this design. As this design is positioned for smart home use, and as a smart socket, its own power consumption must be strictly controlled. Low power consumption is its necessary design. At the same time, the equipment volume is controlled, which can be connected with the general socket without too damaging the original layout of the family. In addition, due to its intelligent characteristics and easy to add and expand functions in the future, its processing capacity must be guaranteed.
At the same time, due to the control function of wireless Internet of things, it must have wireless communication function, and it must be considered that it can easily communicate with existing and possible home intelligent devices in the future. In view of the analysis in Chapter 1, it is more appropriate to choose Wi Fi network as the communication network. Due to the current development of the Internet and the popularity of personal computers and smart phones, Wi Fi network has a high penetration rate in families. Therefore, choosing it as the carrier of wireless Internet of things can be said to make full use of existing resources and save costs. At the same time, its network performance is also fully guaranteed. In the control of external electrical appliances, combined with foreign cases, relay mode is widely used to cooperate with peripheral protection circuit.
To sum up, this design should adopt high-performance embedded processor, use wireless Wi Fi network communication and relay to control external electrical equipment. The power supply design should improve the efficiency as much as possible, and try to select low-power devices and compact design on the premise of ensuring complete function to ensure the miniaturization of product size.
The circuit design is divided into six modules: MCU main control, wireless communication, socket control, power supply, test and debugging, and reserved interface.
Project link: https://www.cirmall.com/circuit/4805#/details
Top6. Smart "cloud" socket
The research goal of the work is to develop a new socket work based on the existing socket, which has the functions of automatic networking, long-range and short-range control, timing, detection, energy saving, energy saving, safety protection and so on. This work can build multiple terminal sockets, connect the wireless network to the central controller, and set the timing at the terminal or the general controller. Suitable for classroom, laboratory and home use.
Electrical control:
It is easy to realize the automatic control of the electrical part. Considering the system performance and economic benefits, we choose 51 microcontroller as the terminal control and STM32 control chip as the central controller processor. The central general controller and each terminal realize automatic wireless networking through ZigBee. The price and performance of the whole system are in a better choice.
The terminal socket adopts lcdl602 display, DS1302 as time, and the relay circuit and control circuit select optocoupler for isolation. Ensure the stability of the system. Power selection switch power supply for chip power supply.
working principle:
The smart socket effectively combines ZigBee technology and the strong performance of STM32, which fully expands the functions of the socket; Considering the function and safety, a popular overcurrent protection circuit is introduced to ensure the safety of the socket; In addition, in response to the call of energy conservation and environmental protection, the timing function of single chip microcomputer is introduced to realize the function of timing switch, and the standby detection circuit is specially designed to make the standby appliances no longer consume power, so as to realize the effect of dual energy conservation.
Project link: https://www.cirmall.com/circuit/718#/details
Top5, intelligent power socket circuit + PCB source file + source code + design description, etc
This design introduces an intelligent power cord board solution based on Renesas MCU r7f0c805. Its main product features are: when the main control jack equipment is turned on or off, MCU will automatically control the power supply of the equipment connected to the controlled Jack (auxiliary jack), so as to achieve the purpose of intelligent linkage and effective power saving.
Specific function description:
After the system initialization is completed, MCU detects whether the main control jack is plugged in in real time through the low-cost unidirectional power detection chip. In order to improve the anti-interference performance, the detection threshold is preset to 30W. At the same time, MCU detects the power of the main control jack equipment in real time through the software trimmed mean filter. When it is detected that the power of the main control jack equipment is greater than the preset threshold, MCU turns on the power input of the controlled (auxiliary) jack through the control relay; When it is detected that the power of the main control jack device is less than the preset threshold, MCU turns off the power input of the controlled (auxiliary) jack through the control relay. In this way, the intelligent linkage control of main and auxiliary jack power supply is realized, which can effectively save electricity.
Design block diagram of intelligent power socket system:
Project link: https://www.cirmall.com/circuit/2790#/details
TOP4. USB charging smart socket based on Internet of things and smart control of mobile app
This design takes STM32 as the control chip, Ti cc3200's simplelink WiFi as the networking scheme, and uses ADC manganin sampling to analyze the parameters such as voltage, current and active power. Intelligent control through mobile app, cloud web page and other methods can realize remote control of electrical appliances on and off, reduce standby power consumption, and timing control of electrical appliances on and off. The socket is equipped with USB charging socket, providing real-time clock, timing reservation and other functions. In case of overvoltage, overload and other dangerous situations, the system will automatically identify and control to disconnect the power supply.
Project link: https://www.cirmall.com/circuit/4858#/details
Top3, WiFi wireless smart socket, mobile app control and timing
In recent years, the awareness of smart home has gradually increased, and a considerable number of smart devices have been derived. These smart home appliances finally need to be controlled by the main socket. At present, the common wireless devices are Wi Fi, Bluetooth, ZigBee, etc. Therefore, this scheme will use the most common wi fi in the home to realize wireless control, and use the app in the mobile phone to control the socket switch and schedule, It also has UI management of each socket to define the device.
Based on the excellent power consumption specification (operation mode 150ua / MHz, power down mode 0.65ua), Nuvoton nano112 is applicable to many smart home devices. At the same time, it has LCD driver to display the relevant information of the socket (device current consumption and voltage regulation value). It is matched with mobile phone app to realize the remote control and scheduling management of each device with wireless modules such as Wi Fi.
Common Wi Fi modules can be realized through UART or SPI interface, and use PWM capture function to measure and receive infrared, and use GPIO to control relevant indicator display. All of the above can be realized through nano112 with ultra-low standby power consumption, rich in many peripherals and LCD driving capability.
Project link: https://www.cirmall.com/circuit/5310#/details
Top2 and DIY make esp8266 wireless WiFi smart socket, which is no worse than Xiaomi
preface:
I remember I used a Xiaomi smart socket before. It was just launched at that time. I thought it was really unstable. It took less than two months. It was also unknown. There was no electricity. I didn't find the reason when I opened it. Finally, I am determined to make one by myself! I don't believe this socket is so difficult!!!
The design scheme is:
The first hole on the left side of the insert is used as the power supply hole, the second hole removes the internal structure, leaving installation space for relays and other components, and the third hole is the controlled hole, that is, the real WiFi control hole of the insert is the third hole.
Test and adjust the installation position:
Project link: https://www.cirmall.com/circuit/5726#/details
Top1, national security! WiFi smart socket design, APP control
Basic functions:
Remote and local app remote socket switches
Timing switch, automatic cycle switch by week, setting parameters are automatically saved in WiFi intelligent socket alarm, will not be lost, and can arrive offline as promised.
The reservation switch enters the countdown state after setting the time.
The universal learning remote control function realizes that the mobile phone replaces the remote control through app operation and code learning.
Socket temperature detection, real-time monitoring of the internal temperature of the socket, and timely cutting off the power supply in case of overload.
With the anti-theft alarm function, it is easy to buy accessories such as door magnetic detector, infrared detector, smoke detector, gas detector, etc. through learning and operation, link it with WiFi intelligent socket alarm. When you leave home, press the deployment icon on the app. If the door is opened, you will receive the alarm information on the app. When you go home, press the disarm icon on the app.
Extended functions:
The anti-theft alarm function mentioned above is one-way operation. If safer operation is required, it will cover a wider space. For example, through WiFi intelligent socket alarm door lock, 2.4G wireless RF chip for one to many networking. The sensor ad hoc network of the whole building needs to be expanded with ZigBee.
Project link: https://www.cirmall.com/circuit/4436#/details "
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