CN216751795U - Energy efficiency thing networking gateway that real-time multichannel was forwarded - Google Patents

Abstract

The utility model discloses an energy efficiency Internet of things gateway with real-time multi-channel forwarding, which relates to an Internet of things gateway, and is compatible with a plurality of data transmission protocols such as DL/T645, MODBUS, Q/GDW 376.1, mqtt, TCP/UDP and the like through a 4G, wired network and 485 bus mode, the utility model automatically selects corresponding network interfaces and serial data interfaces such as 485 bus and the like to collect electric energy, heat, flow meters, weighing machines and other types of metering devices, meanwhile, the collected data are sent to an energy efficiency management platform or other data analysis centers, and multi-path network communication is configured and managed through an independent MAC + PHY network chip, so that data distribution under different local area network or Ethernet environments is realized, the information of remote positions can be collected to a remote server through a 4G mobile network, and the real-time performance of the gateway of the Internet of things is guaranteed by utilizing a real-time operating system, a DMA transfer and EMMC high-speed data forwarding technology and the like.

Description

Energy efficiency thing networking gateway that real-time multichannel was forwarded

Technical Field

The utility model relates to an internet of things gateway, in particular to an energy efficiency internet of things gateway capable of realizing real-time multi-channel forwarding.

Background

With the development of the internet of things and the emphasis of the country on the energy internet of things, the country performs further supervision and management on enterprises with larger energy consumption, issues a series of relevant standards and requirements for monitoring energy consumption aiming at key energy consumption enterprises, and monitors and supervises relevant enterprises and equipment with high energy consumption and low output. In the data acquisition process of a key energy consumption unit, due to the fact that energy consumption types of enterprises are different, and differences between metering equipment and manufacturers cause large differences between communication interfaces and communication protocols, in the data integration process, statistics and acquisition are carried out on various data sources, a plurality of internet of things gateways are limited by sampling rates and communication protocols of the interfaces, the number of accessible equipment and sampling information content are limited within a unit time in the network acquisition and serial data acquisition processes, and a single communication interface cannot adapt to the responsible network environment.

Disclosure of Invention

The utility model aims to provide a real-time multi-channel forwarding energy efficiency Internet of things gateway, which automatically selects corresponding network interfaces and serial data interfaces such as 485 buses and the like to collect electric energy, heating power, flow meters, weighing machines and the like, simultaneously sends the collected data to an energy efficiency management platform or other data analysis centers, configures and manages multi-channel network communication through independent MAC + PHY network chips, realizes data distribution under different local area networks or Ethernet environments, can collect information at remote positions to a remote server through a 4G mobile network, and simultaneously ensures the real-time performance of the energy efficiency Internet of things gateway by using high-speed data forwarding technologies such as a real-time operating system, DMA transfer and EMMC.

The purpose of the utility model is realized by the following technical scheme:

an energy efficiency Internet of things gateway capable of realizing real-time multi-channel forwarding comprises a CPU processing circuit, a network communication module, a data storage circuit, a real-time clock circuit, a power supply module, a 4G module and a 485 circuit; the CPU processing circuit is connected with the network communication module, the data storage circuit, the real-time clock circuit, the power supply module, the 4G module and the 485 circuit; the 485 circuit collects and connects data of the lower computer, and the network communication module is connected with the 4G module for forwarding uplink data; the CPU processing circuit is connected with the data storage circuit, the network communication module responsible for logic processing and analysis and the 485 circuit; the light-weight real-time operating system is in management communication connection with the communication threads of the modules, and the DMA transfer network communication module is connected with the data information of the data storage circuit; when the gateway can not access the wide area network through the RJ45 interface of the network communication module, the connection 4G module is compatible with the MQTT protocol stack, and access of millions of data nodes is supported.

The energy efficiency internet of things gateway capable of real-time multichannel forwarding adopts 3W 5500 network chips as a network communication module, a hardware network protocol stack is connected with a CPU processing circuit through an SPI bus and is distinguished by an SPI _ CS chip selection line, 3 RJ45 interfaces are provided with independent MAC + PHY, and the data under a plurality of local area network environments are compatible in network configuration parameter connection through configuration and management of the CPU processing circuit 1.

According to the energy efficiency Internet of things gateway capable of realizing real-time multi-channel forwarding, the data storage circuit adopts SDINBDDG 4-16G for parameter and data storage.

According to the real-time multi-channel forwarding energy efficiency Internet of things gateway, the real-time clock circuit is 8025T as an external clock, and a super capacitor is adopted for power supply.

The energy efficiency thing networking gateway that real-time multichannel was forwardded, power module include 2 LDO constant voltage power supplies and be used for providing 5V and 3.3V DC power supply for each module.

The energy efficiency internet of things gateway capable of realizing real-time multi-channel forwarding is characterized in that the 485 circuit comprises 4 485 level conversion chips and an external circuit.

The utility model has the advantages and effects that:

1. the utility model has simple configuration and wide applicability, and is compatible with various mainstream communication protocols.

2. The utility model has a plurality of independent configurable network ports and is used for data forwarding interaction of a local area network and a wide area network.

3. The utility model has a plurality of interfaces 485, and can simultaneously carry out data interaction with various devices.

4. The utility model can carry out data forwarding and interaction under the condition that the wired network is limited through the 4G mobile network, supports the access of millions of data nodes and improves the expandability of the gateway of the Internet of things.

5. The multi-channel independently configurable network port has higher real-time performance through DMA transfer and thread management of a real-time operating system.

6. The utility model adopts the EMMC storage technology to improve the real-time performance of the gateway of the Internet of things.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a flow chart of the present invention.

The components in the figure: the system comprises a CPU processing circuit 1, a network communication module 2, a data storage circuit 3, a real-time clock circuit 4, a power supply module 5, a 4G module 6 and a 485 circuit 7.

Detailed Description

The present invention will be described in detail with reference to the embodiments shown in the drawings.

The utility model obtains network configuration information and protocol stack information of each port through a data storage circuit 3 by a CPU processing circuit 1, performs data interaction with a network communication module 2 through an SPI bus, selects a corresponding network port through a CS chip select line of the SPI bus, directly stores the received data into the data storage circuit 3 by a DMA, obtains a clock of a real-time clock circuit 4, and reports various data and parameters to a corresponding opposite-end receiving port through an uplink data protocol stack through the network communication module 2. When the network communication module 2 can not be connected to a wide area network through a wired network for data interaction, the CPU processing circuit 1 uploads data to a designated opposite terminal interface through the 4G module 6, the CPU processing circuit 1 establishes an independent communication thread for the network communication module 2, the 4G module 6 and the 485 circuit 7 respectively through a real-time operating system, the 4G module 6 and the 485 circuit 7 press received and sent data into a message queue through interruption and the network communication module obtains the data from a DMA area, and message forwarding is carried out after corresponding receiving and sending marks are obtained.

The utility model comprises a CPU processing circuit 1, a network communication module 2, a data storage circuit 3, a real-time clock circuit 4, a power supply module 5, a 4G module 6 and a 485 circuit 7.

The CPU processing circuit 1 adopts an STM32F429 as a CPU processing circuit to be connected with the network communication module 2, the data storage circuit 3, the real-time clock circuit 4, the power supply module 5, the 4G module 6 and the 485 circuit 7, processes and analyzes data information provided by the network communication module 2 and the 485 circuit 7, the CPU processing circuit respectively carries out thread management on the network communication module 2, the 4G module 6 and the 485 circuit 7 through a built-in real-time operating system by connecting the serial data buses of TXD and RXD with the 4G module 6, the network communication module 2 stores data into a DMA area, when the system is idle, data are packaged and stored in the data storage circuit 3, data of serial data buses of the 4G module 6 and the 485 circuit 7 are pressed into a message queue through interruption, a task mark is distributed by the CPU processing circuit, and downlink data acquisition and uplink data forwarding are carried out.

The network communication module 2 adopts 3W 5500 network chips, is connected with the CPU processing circuit 1 through an SPI bus, distinguishes respective work by 3 SPI _ CS chip selection lines, is respectively connected to 3 RJ45 network interfaces through TXP, TXN, RXP and RXN, the CPU processing circuit 1 configures and manages IP, gateways and other network parameters, is connected with databases and network protocol ports in a local area network and a wide area network through an RJ45 interface, acquires corresponding protocol configuration parameters through the data storage circuit 3, and converts and classifies read data information.

The DATA storage circuit 3 stores parameters and DATA files by adopting SDINBDDG 4-16G, and is connected with the CPU processing circuit 1 through SDI _ CLK, SDI _ RST, SDI _ CLK, SDI _ CMD and 8 SDI _ DATA signal lines and responsible for storing the parameters and the DATA.

The real-time clock circuit 4 takes 8025T as an external clock, is connected with the CPU processing circuit 1 through clk and sda signal wire lines, supplies power by adopting a 3.3F super capacitor, and is responsible for providing a clock for a time zone period measured by the gateway of the Internet of things.

The power module 5 comprises a 5VLDO (very low voltage tolerant oxide) stabilized power supply module and a 3.3VLDO stabilized power supply module, and provides power supplies of all levels for the gateway of the Internet of things.

The 4G module 6 adopts a u9507c4G transceiving module to be connected with the CPU processing circuit 1 through a TXD and an RXD.

The 485 circuit 7 comprises 4 485 level conversion chips and an external circuit, is respectively connected with the CPU processing circuit 1 through a TXD bus and an RXD bus, and is connected with the acquisition equipment through 485A and 485B buses of each sub to perform downlink data interaction.

In the gateway of the internet of things, after a CPU processing circuit 1 is powered on, the CPU processing circuit 1 initializes an interrupt, a clock, a timer, an SPI bus, a serial port and various peripheral modules, initializes a real-time operating system and various threads, reads parameter information in a data storage circuit 3, configures a network communication module 2 and a 485 circuit 7, initializes 8025T of a real-time clock circuit 4 and provides a clock mark for reporting information of the gateway of the internet of things. The W5500 in the network communication module 2 is through RJ45 interface and the opposite terminal network information that the data memory circuit 3 stores, the data obtained after reading the information and interacting with the opposite terminal are put into DMA data area through SPI bus, judge the data memory circuit 3 after the system is idle by CPU processing circuit 1, under the situation that the RJ45 interface can't be linked the wide area network through the local network, report the data to the opposite terminal interface by the 4G module 6; the CPU processing circuit 1 can perform data interaction with unlimited number of devices or data interfaces accessed to the same opposite-end server through an MQTT protocol stack. The CPU processing circuit 1 presses the data of the serial data buses of the 4G module 6 and the 485 circuit 7 into a message queue through interruption, the CPU processing circuit distributes task marks, the 485 circuit 7 loads a corresponding protocol stack through the data bus of the data storage circuit 3 to obtain a data issuing instruction, the CPU processing circuit 1 stores the data obtained after data interaction with the lower computer equipment into the data storage circuit 3, and the network communication module 2 or the 4G module 6 forwards the uplink data after the system is idle or the uploading time is up.

Claims (6)

1. The energy efficiency Internet of things gateway capable of realizing real-time multi-channel forwarding is characterized by comprising a CPU (Central processing Unit) processing circuit (1), a network communication module (2), a data storage circuit (3), a real-time clock circuit (4), a power supply module (5), a 4G module (6) and a 485 circuit (7); the CPU processing circuit (1) is connected with the network communication module (2), the data storage circuit (3), the real-time clock circuit (4), the power module (5), the 4G module (6) and the 485 circuit (7); the 485 circuit (7) collects and connects data of a lower computer, and the network communication module (2) and the 4G module (6) transmit and connect uplink data; the CPU processing circuit (1) is connected with the data storage circuit (3) which is responsible for logic processing and analysis network communication module (2) and the 485 circuit (7); the light-weight real-time operating system is in management communication connection with the communication threads of the modules, and the DMA transfer network communication module (2) is connected with the data information of the data storage circuit (3); when the gateway can not access the wide area network through the RJ45 interface of the network communication module (2), the connection 4G module (6) is compatible with the MQTT protocol stack, and access of millions of data nodes is supported.

2. The energy efficiency internet of things gateway of claim 1, characterized in that the network communication module (2) adopts 3W 5500 network chips, a hardware network protocol stack is connected with the CPU processing circuit (1) through an SPI bus and is distinguished by an SPI _ CS chip select line, and 3 RJ45 interfaces have independent MAC + PHY, and are compatible with data under a plurality of lan environments through configuration and management network configuration parameter connection of the CPU processing circuit (1).

3. The energy-efficient internet-of-things gateway with real-time multi-channel forwarding as claimed in claim 1, wherein the data storage circuit (3) adopts SDINBDDG 4-16G for parameter and data storage.

4. The real-time multi-channel forwarding energy efficiency internet of things gateway as claimed in claim 1, wherein the real-time clock circuit (4) is powered by a super capacitor with 8025T as an external clock.

5. The real-time multi-channel forwarding energy efficiency internet of things gateway as claimed in claim 1, wherein the power module (5) comprises 2 LDO regulated power supplies and is used for providing 5V and 3.3V direct current power supplies for the modules.

6. The energy efficiency internet of things gateway capable of real-time multi-channel forwarding according to claim 1, wherein the 485 circuit (7) comprises 4 485 level conversion chips and an external circuit.

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