Zigbee intelligent energy-saving socket design

With the rapid development of the modern economy, the implementation of energy-saving, intelligent, and safe policies has become a new trend in the development of energy-saving systems. The intelligent energy-saving system based on zigbee technology puts forward green, innovative and safe energy-saving concepts. Based on the rapid development of science and technology, the research of zigbee technology in the field of intelligent energy-saving sockets is no longer the same. Therefore, on the basis of traditional energy-saving research, this paper applies Zigbee wireless communication technology to energy-saving, and proposes an energy-saving design scheme that combines Zigbee wireless communication technology with ordinary sockets.

1. Features of smart energy-saving sockets based on zigbee technology

ZigBee is an emerging wireless communication technology used in the field of wireless personal networks. This communication technology can be used in smart energy-saving sockets, with sensors as the medium, connected to the main controller through the smart socket, and transmitting data to the main controller, while responding The main controller can also receive commands, in order to ensure the normal operation of the smart socket. The main controller and the smart socket form a stable communication network, which has the functions of preventing virus infection and safe and reliable information transmission during the communication process.

1.1 Security

ZigBee wireless data transmission network has the advantages of safety and reliability. Generally speaking, the complete ZigBee architecture should include the PHY layer and MAC layer defined in IEEE802.15.4. Resend. At the same time, the ZigBee wireless communication technology adopts the encryption algorithm of AES-128, and ZigBee provides a three-level security mode, and each application can flexibly determine its security attributes. In addition, the unique security service provider layer of ZigBee wireless communication technology provides a security mechanism, and the service mechanism has the characteristics of security and reliability.

It is worth noting that system-wide security is defined at the template level, which means that templates should define what type of security should be implemented in a particular network. On the other hand, in order to meet the needs of the smart home system, the new smart socket discussed in this paper has the functions of overload protection, overload protection and short circuit protection. When the circuit system detects the leakage of the socket, it will stop supplying power. When it is too large, the system will actively disconnect the power supply to protect household appliances and routes. At present, with the development and progress of the national economy and technology, computers have become a necessity in daily life, so the main road controlled smart socket also plays a huge role in life. The main circuit controlled smart socket takes the main circuit as the core and the auxiliary circuit as the basis, controls the input voltage and input power, and avoids the short circuit of the circuit, which may cause fire.

1.2 Energy saving

As we all know, energy saving has become the theme of today's world. In the era of rapid technological development, scientific researchers in various fields are striving for the goal of energy saving day after day. The emergence of intelligent energy-saving sockets based on zigbee wireless communication technology has created a new era of energy-saving methods. In recent years, with the rapid development of science and technology and the continuous improvement of people's material living standards. The socket no longer plays an ordinary role. We apply zigbee technology to the socket and create a new type of socket. Monitoring, on the other hand, users can also monitor the operating status of electrical appliances in daily life, put forward feasibility analysis on standby status, refer to power consumption, monitor power consumption in real time, and save unnecessary power loss. The timing function of the smart socket can provide users with time-sharing power supply, and start the water heater and washing machine when the electricity price is cheap, thereby saving electricity costs. function to maximize the utilization of electric energy.

1.3 Intelligence

The smart energy-saving socket based on zigbee wireless communication technology is mainly to realize the control of power supply disconnection. With the rise of computers and mobile communication networks, the Internet of Things has become a hot research direction at present, and networking will inevitably become a key research field. With the rapid development of science and technology in today's world, smart sockets and computers are inseparable. The local computer can communicate with the embedded main controller through the local network, and use the security system in the home to check the user's living status. From the perspective of remote control, through the connection between the main controller and the Internet shared network, home users can manipulate the remote PC to complete the login settings on the home network. At the same time, individual users can also log in to the Internet through mobile phones or tablets using 4G networks. It can realize remote control, and can complete data transmission in real time and on the spot. In order to ensure the security of the smart home system, the remote control operation must have the corresponding network permission protocol.

2. Design and implementation of intelligent energy-saving socket based on zigbee technology

2.1 Design of zigbee structure

Generally speaking, the complete zigbee structure system defines the MAC sublayer of the PHY layer and the data link layer with the standard of IEEE 802.15.4. Among them, the PHY layer is mainly composed of two parts: the radio frequency transceiver and the communication module at the bottom; the MAC sublayer is used as the upper layer for accessing physical information, and provides a point-to-point communication method for the serial port in the form of an IP address. The function of the MAC protocol is mainly to confirm the transmission and reception of the frame in the system mode and to control the channel access; on the other hand, it completes the construction, detection, maintenance, and repair operations of the synchronous network. The instruction operation of the MAC layer is mainly divided into four formats, mainly including beacon frame, confirmation frame, MAC command frame and data frame. In addition, the maximum length of the protocol data unit is 127 bytes, and the definition of the PHY sublayer is a chip for information exchange and information transmission with the external interface, which is mainly reflected in the physical layer. Specifically, the PHY sublayer represents a kind of Ethernet chip. Network cards are ubiquitous in real life. Whether it is online address access or online games, network cards have played an important role in the Internet era. For zigbee devices, if you want to implement zigbee functions and services, that is, point-to-point communication, you only need to implement the functions of the PHY layer and the MAC sublayer. According to different design requirements, there are many design schemes. From the perspective of economic cost and energy saving, this paper chooses the SOC chip with integrated functions, and has an MCU inside, which can realize a single-chip solution.

2.2 Circuit system design of intelligent energy-saving socket

The circuit system of the smart energy-saving socket mainly takes the microcomputer processor as the core, and other parts mainly include AC and DC power conversion, input signal detection, output power control, communication module, etc. As the core of the whole circuit system, the microcomputer processor adopts a 64-bit processor and adds protective software to realize the functions of information exchange, information control and communication detection; the function of the AC-DC power conversion unit is to convert the 380/220 AC power direct current, this process is called rectification. The rectified output power must meet the requirements of the circuit system; the power control adopts a single-phase bridge uncontrolled rectifier embedded in the Boost boost circuit to complete the unit power factor control of the grid side and improve the power quality. The signal measurement part converts the input voltage and input current into weak signals, and then inputs them into the metering chip. The AC-DC conversion circuit and digital operation circuit in the circuit system can calculate the effective value of voltage and current, and then feed back to the microprocessor. middle. The implementation of the communication module is based on the functions of the PHY layer and the MAC sublayer. For the entire circuit system, the implementation of the smart energy-saving socket is inseparable from the zigbee technology. Strictly speaking, the wireless network provides the basis for the smart energy-saving socket.

Summarize

The intelligent energy-saving socket based on zigbee technology has created a new energy-saving era. It has the characteristics of low consumption, energy saving, and safety, which can improve the utilization rate of electric energy. The intelligent energy-saving socket is an important part of the smart home system. It can be convenient Realize the monitoring, control and data transmission of electrical equipment. This is a product that can change people's lifestyle. It is believed that smart energy-saving sockets will also usher in mushrooming development with their advantages of intelligence, energy saving and humanization. Looking at the development of the world today, scientific and technological innovation has a more extensive impact on economic and social development and people's lives, and the level of scientific and technological development more profoundly reflects a country's comprehensive national strength and core competitiveness. As Bergson said, "new concepts must be created for new objects", so the smart energy-saving socket based on zigbee technology will create a new energy-saving method, and will also make a huge contribution to energy conservation.

The above is the design example of smart energy-saving socket based on zigbee technology introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you.

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