CN204597128U - Based on the socket of ZIGBEE radio communication - Google Patents

Abstract

Based on the socket of ZIGBEE radio communication, controlled by a subscriber equipment by ZIGBEE application protocol, described socket has a body, the power taking slot of indoor user equipment is provided with in body one end, the other end connects civil power power line, be provided with in body: module for metering electric quantity, ZIGBEE communication module, relay switch, connect described ZIGBEE communication module, with socket described in the subscriber signal break-make received according to it, and power supply, AC220V civil power is converted to and provides working power for described ZIGBEE communication module and module for metering electric quantity, in described body one end, expansion interface is set, described module for metering electric quantity, ZIGBEE communication module by expansion interface and described socket integrated, described body comprises adjustable DC power circuit further, for providing different DC voltages by the difference in the functional module do not accessed in described expansion interface in the same time, wherein DC voltage is used as power supply station on the one hand, on the other hand as carrying a certain size data-signal to functional module.

Description

Socket based on ZIGBEE wireless communication

technical field

The utility model relates to the technical field of an intelligent power consumption information collection socket for a smart home system, in particular to a socket for intelligent power consumption information collection based on ZIGBEE wireless communication technology.

Background technique

The intelligent power consumption information collection socket is an intelligent product born under the concept of intelligent energy saving and environmental protection of the smart grid. For ordinary smart sockets and smart meters, they have single functions, cumbersome operations, complex structures, low reliability, poor user experience, and are not conducive to energy conservation and environmental protection. The utility model integrates the outstanding functions of the above-mentioned equipment in a targeted manner, realizes the integration of intelligent switch control and electricity consumption information collection, adopts standardized and modular design concepts, has high reliability, strong stability, compact structure, and beautiful appearance. Beautiful, small size, low power consumption, energy saving and environmental protection, not only provide users with intelligent and convenient operation, but also meet the requirements of energy saving and environmental protection with its own low power consumption.

Utility model content

The technical solution of this embodiment is characterized by the development of an intelligent power consumption information collection socket based on ZIGBEE wireless communication technology. The main technical innovations consist of the following five points:

1. The entire circuit system adopts a modular design concept, and the ZIGBEE wireless communication module, power metering module, power module and relay switch module are respectively set in the circuit board base, which has high reliability, strong stability, compact structure, beautiful appearance, Small size, plug-and-play, which reduces the floor space in the meter, and can also be embedded in other electrical equipment to collect electricity information and facilitate product modularization and promotion;

2. The ZIGBEE wireless communication module adopts the standard based on IEEE 802.15.4 and the international ZIGBEE alliance standard, free of charge, strong anti-interference ability, moderate speed, low cost, low power consumption, large network capacity, strong penetrating ability, and omnidirectional communication , short delay, reliable transmission and other characteristics determine that it is more advantageous than other technologies.

3. The power metering module mainly includes voltage and current transformers, and power metering chips. The voltage and current transformers are used to collect electricity consumption information and transmit it to the electric energy metering chip, which is used for measurement by the electric energy metering chip and calculates the household electricity consumption information.

4. The power supply module mainly adopts an integrated AC-to-DC power supply module, which directly converts the AC 220V mains power into DC power to supply power to the ZIGBEE wireless communication module, power metering module and other circuits. The relay switch module mainly controls the power on and off of the smart socket.

Technical solution: The socket based on ZIGBEE wireless communication is controlled by a user equipment through the ZIGBEE application protocol. It is equipped with: power metering module, used to collect electricity consumption information of indoor user equipment that takes power through this socket; ZIGBEE communication module, used to carry the above-mentioned ZIGBEE application protocol, and establish wireless connection with user equipment; relay switch, connected The ZIGBEE communication module is used to turn on and off the socket according to the user signal it receives; and the power supply is used to convert AC220V mains power to provide working power for the ZIGBEE communication module and the power metering module. An expansion interface is provided at one end of the main body, and the power metering module and the ZIGBEE communication module are integrated with the socket through the expansion interface. The main body further includes an adjustable DC power supply circuit for passing through the expansion interface at different times Different functional modules connected provide different DC voltages, wherein the DC voltage is used as power supply on the one hand, and as a data signal of a certain size to the functional modules on the other hand.

In one embodiment, an expansion interface is provided at one end of the body, and the electricity metering module and the ZIGBEE communication module are integrated with the socket through the expansion interface.

In one embodiment, there are multiple expansion interfaces, so that the functionality of the socket increases or decreases correspondingly according to the different functional modules to be installed or removed.

In another embodiment, the functional components of the compact socket are defined in an insulating body, and the functional components include: a power-taking slot provided on the surface of the body for use by indoor user equipment, and another A power-taking plug provided on the surface of the body; an expansion interface connected between the power-taking slot and the power-taking plug, wherein the cross-sectional size of the expansion interface is set to be less than or equal to 18mm×14.5mm.

In one embodiment, the expansion interface includes: a power metering module, used to collect power consumption information of indoor user equipment that takes power through the socket; a ZIGBEE communication module, used to carry the ZIGBEE application protocol, and communicate with the user equipment Establish a wireless connection; a relay switch is connected to the ZIGBEE communication module to switch on and off the socket according to the user signal it receives; or a power supply is used to convert AC220V mains power to provide working power for the ZIGBEE communication module and the power metering module .

In one embodiment, the insulating body includes a smooth body without control buttons for controlling any functional module or circuit installed in the expansion interface, and the functional components further include a function for automatically detecting current An on-off socket detection circuit is used for the safe plug-in connection of the compact socket.

In one embodiment, the conductive contact portion of the power-taking socket or the power-taking plug includes end contacts, middle contacts and end contacts for coupling connection.

In one embodiment, the cross-sectional dimension of the insulating body is set to be 40mm×39.8mm or smaller.

The technical effect of adopting the embodiment of the utility model is remarkable. First, its appearance design is novel, its structure is compact, its volume is small and exquisite, it is suitable for single installation or carrying, and it is convenient to use; secondly, the functionality of the socket can be changed according to the different modules installed. , strong expansibility; the socket has protective measures for improper plugging and unplugging, which is convenient for users to use safely.

Description of drawings

Fig. 1 is the functional schematic diagram of the utility model socket;

Fig. 2 is the three-dimensional schematic diagram of socket of the present utility model;

Fig. 3 is a longitudinal sectional view of the perspective view of the present invention.

detailed description

Referring to Figures 1 to 3, the present embodiment is a smart power consumption information collection socket based on ZIGBEE wireless communication technology, including a socket body 23, in which a ZIGBEE wireless communication module 21, a power metering module, and a relay switch are arranged. modules and power modules (not shown). Compared with the general technology, the intelligent electricity consumption information collection socket of the utility model is based on the ZIGBEE wireless communication network, the user can remotely control the power on and off of the socket, and at the same time can remotely collect the electricity consumption information (including: voltage, current, power , electricity, etc.), the output power meets the load requirements of major household appliances. In one embodiment, the electricity metering module adopts the ATT7039A chip of HiTrend Optoelectronics Technology (Shanghai) Co., Ltd., and is mainly responsible for collecting and measuring information such as voltage, current, power, and electricity of indoor user electrical equipment. In one embodiment, the ZIGBEE wireless communication module adopts the EM357 chip of SILICON LABS Company, and mainly uses the ZIGBEE wireless communication technology to control the opening and closing of the relay switch of the socket, read the status of the relay switch, and read the power consumption information of the household appliances. And based on the ZIGBEE protocol, the operating parameters of the smart socket uploaded and monitored in real time are transmitted to the handheld terminal.

The socket 2 based on ZIGBEE wireless communication is controlled by a user wireless handheld device 1 through the ZIGBEE application protocol. The socket has a body, and one end of the body 23 is provided with a power-taking slot 22 for indoor user equipment, and the other end is connected to the mains power line , the body is equipped with: a power metering module, which is used to collect power consumption information of indoor user equipment that takes power through this socket; a ZIGBEE communication module, which is used to carry the ZIGBEE application protocol and establish a wireless connection with the user equipment; a relay A switch is connected to the ZIGBEE communication module to switch on and off the socket according to the user signal it receives; and a power supply is used to convert AC220V mains power to provide working power for the ZIGBEE communication module and the power metering module.

In one embodiment, the structural appearance of the intelligent power consumption information collection socket is shown in FIG. 3 , which has a novel appearance design, a compact structure, and a small size, and has a status indicator light 26 and a reset button 27 on the surface.

In one embodiment, an extension interface 25 is provided on one end 24 of the body 23 , and the electricity metering module and the ZIGBEE communication module are pluggably integrated with the socket 2 through the extension interface. The entire circuit system of the intelligent power consumption information collection socket adopts a modular design concept, mainly including a ZIGBEE wireless communication module, a power meter module, a power supply module and a relay switch module. Under different requirements, functional modules can be inserted into the expansion interface 25, Make the function of the socket change.

In one embodiment, there are multiple expansion interfaces, so that the functionality of the socket increases or decreases correspondingly according to the different functional modules to be installed or removed.

An adjustable DC power supply circuit can be included in the socket 2, and different DC voltages can be provided by different functional modules inserted in the expansion interface 25 at different times. Carrying a data signal of a certain size, the data signal may include, for example, data information in response to a power supply signal or an acknowledgment signal to the wireless module (WIFI signal).

In one embodiment, the circuit system of the entire socket 2 is a control system with a power metering module as the core. The mains input is 220V, and the AC-DC power module converts it into a 5V DC voltage, and then outputs 3.3V through the DC-DC conversion circuit. Voltage, supplying power to the electricity metering module and ZIGBEE wireless communication module; the electricity metering module collects input voltage and input current information, and after calculation and processing by the ATT7039A chip, obtains relevant power, electricity and other electricity consumption information; the electricity metering module controls the relay switch module The closure and disconnection of the electrical equipment, so as to control the power on and off of the electrical equipment; the ZIGBEE wireless communication module communicates with the power metering module in real time, and the wireless handheld terminal device and the smart socket perform data transmission through the ZIGBEE network, so that the wireless handheld terminal can be used. Read the power consumption information of the electrical equipment on the smart socket in real time, control the power on and off of the smart socket, and the ZIGBEE program programming interface can easily upgrade the program of the ZIGBEE wireless communication module; in addition, the system also has status indicators, buttons reset circuit.

In one embodiment, the electricity metering module in the smart socket adopts ATT7039A chip, which is based on 8-bit R8051XC design, has 8052 compatible instruction set and bus structure, integrates single-phase metering, processor, power management, clock management, PLL on-chip , JTAG debugging and other functions. The chip has the following outstanding advantages:

On-chip integrated PLL frequency multiplication circuit; on-chip integrated rich memory resources;

On-chip integrated hardware watchdog circuit that can never be turned off;

On-chip integrated RTC module, which can output second pulse for verification and realize clock compensation per second;

On-chip integrated keypad, serial communication, LCD, infrared modulation, I2C and other peripherals;

The dynamic range is 5000:1, the active energy error is less than 0.1%, and it supports the accuracy requirements of IEC62053-21 and IEC62053-22 standards; the dynamic range is 5000:1, and the reactive energy error is less than 0.1%, and it supports the accuracy requirements of IEC62053-23 standard;

Current/voltage RMS measurement error is less than 0.5%;

Provide the original sampling data and instantaneous waveform sampling data of two ADCs;

The current and voltage sampling channels have 4 levels of adjustable analog/digital gain, and support direct access to shunts and transformers.

In one embodiment, the power metering module is based on the ATT7039A power metering chip designed with 8-bit R8051XC, and the external circuit includes a crystal oscillator circuit, a pulse output circuit, a JTAG interface circuit that can be programmed online, and the program can be upgraded. The DC-DC power supply circuit outputs 3.3 The V voltage is supplied to the MCU to work, and the voltage and current transformers are used to collect electricity consumption information and transmit it to the energy metering chip, which is used for measurement by the energy metering chip, and the household electricity consumption information is calculated.

In another embodiment, a compact socket is provided, the functional components of which are limited in an insulating body, the functional components include: a power-taking slot provided on the surface of the body for use by indoor user equipment, and A power-taking plug arranged on the surface of the other body; an expansion interface connected between the power-taking slot and the power-taking plug, wherein the cross-sectional size of the expansion interface is set to be less than or equal to 18mm×14.5mm.

In one embodiment, the expansion interface 25 includes: a power metering module, used to collect power consumption information of indoor user equipment that takes power through the socket; a ZIGBEE communication module, used to carry the ZIGBEE application protocol, and communicate with users The device establishes a wireless connection; the relay switch is connected to the ZIGBEE communication module to switch the socket according to the user signal it receives; or the power supply converts the AC220V mains power to provide work for the ZIGBEE communication module and the power metering module power supply.

In one embodiment, the insulating body includes a smooth body without control buttons for controlling any functional module or circuit installed in the expansion interface, and the functional components further include a function for automatically detecting current An on-off socket detection circuit is used for the safe plug-in connection of the compact socket.

In one embodiment, referring to FIG. 3 , the conductive contact portion of the power-taking socket 22 or the power-taking plug 28 includes an end contact 281 , a middle contact 282 and an end contact 283 coupled together. In this embodiment, a potential problem of a receptacle and plug connection is solved. When the power-taking plug 28 is for example inserted or removed, at least a part of the entire iron core of the plug 28 may scratch or cause electric sparks. The generated energy needs to be discharged, such as the surface of the strong oxidized iron core, or through other conductors in contact with the iron core, such as the shunt of the human body, and the inner surface of the body 23 may be made of conductive material, so the slot 22 or The plug 28 creates a possible short circuit to the conductive parts inside the body. Therefore, the conductive iron core 28 can be divided into three parts, namely, the end contact 281 which first contacts the conductor wire, the middle contact 282 which contacts the conductor wire after correct contact, and the end contact 283. The conductive materials are varied to ensure that when excess energy is generated in one contact, the other contacts can dissipate some of the energy.

In one embodiment, the socket device may include an indicating part to indicate its working state. For example, the state indicator may be composed of a plurality of LED parts. Under normal circumstances, the status indicator shows red, and when the status of the outlet changes, the status indicator can indicate at regular intervals and continuously.

In one embodiment, the cross-sectional dimension of the insulating body is set to be 40mm×39.8mm or smaller. Power supply components and PCB circuit boards can be stacked in the body to reduce the space occupied by these components. Since it is for indoor user electrical equipment, such as power metering of PC computers, its metering circuit can be directly implemented with patch circuits , without considering the need to install a larger volume of high-voltage transformers or similar AC step-down circuits and occupy a larger volume, that is, it measures the DC side and does not collect current fluctuations on the AC conductor wires.

On the other hand, based on the above-mentioned consideration of the overvoltage caused by possible bad contact, its energy can be discharged by the slot 22 or the body 2 ground.

Claims (4)

1. The socket based on ZIGBEE wireless communication is characterized in that: controlled by a user equipment through the ZIGBEE application protocol, the socket has a body, one end of the body is provided with a power-taking slot for indoor user equipment, and the other end is connected to the mains power line , the body is equipped with: a power metering module, which is used to collect power consumption information of indoor user equipment that takes power through this socket; a ZIGBEE communication module, which is used to carry the ZIGBEE application protocol and establish a wireless connection with the user equipment; a relay A switch is connected to the ZIGBEE communication module to switch the socket on and off according to the user signal it receives; and a power supply is used to convert AC220V mains power to provide working power for the ZIGBEE communication module and the power metering module. An expansion interface is set at one end, and the power metering module and the ZIGBEE communication module are integrated with the socket through the expansion interface. Depending on the module, different DC voltages are provided. On the one hand, the DC voltage is used as a power supply, and on the other hand, it is used to carry a certain size of data signal to the functional module. 2. The socket based on ZIGBEE wireless communication according to claim 1, characterized in that: the circuit system of the entire socket is a control system with a power metering module as the core, and the power metering module adopts an ATT7039A chip and is designed based on 8-bit R8051XC , with 8052 compatible instruction set and bus structure, its external circuit includes crystal oscillator circuit, pulse output circuit. 3. The socket based on ZIGBEE wireless communication according to claim 1, characterized in that: the conductive contact part of the power-taking slot includes an end contact, a middle contact and an end contact coupled together, wherein The conductive materials of the three contacts vary. 4. The socket based on ZIGBEE wireless communication according to claim 1, wherein the main body includes a status indicator indicating its working status, which is composed of a plurality of LED parts.