CN211579998U

CN211579998U - Building energy consumption data gateway

Info

Publication number: CN211579998U
Application number: CN202020644981.4U
Authority: CN
Inventors: 潘群; 王筱艳; 张蒙
Original assignee: Changzhou Yanrun Energy Science And Technology Co ltd
Current assignee: Changzhou Yanrun Energy Science And Technology Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-09-25
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to a building energy consumption data gateway, which comprises a low-power processor module, a data storage module, a data acquisition module and a watchdog module; the data acquisition module is connected with the low-power-consumption processor through a UART interface; the data storage module is connected with the low-power-consumption processor through an EMC (electro magnetic compatibility) and SPI (serial peripheral interface); the watchdog module is directly connected with the low-power-consumption processor; the data acquisition module is provided with an RS-485 module with photoelectric isolation through a UART interface, and a resistor is arranged between A, B circuits of the RS-485 module through a dial switch. The utility model discloses an intelligent acquisition, processing analysis, remote communication of building energy consumption data have improved data acquisition's stability, data gateway's reliability, and the interference killing feature is stronger, and the consumption is lower.

Description

Building energy consumption data gateway

Technical Field

The utility model belongs to the technical field of the intelligent gateway technique and specifically relates to a building energy consumption data gateway.

Background

China is a developing country, a sustainable development road should be adhered to, and energy conservation and emission reduction are also an important development strategy in China. In order to avoid building energy consumption becoming a soft rib developed in China, a perfect solution is made, and the method is an urgent project for the nation and the government. The building energy consumption data is strongly supported for deepening the building energy consumption work and solving the energy consumption problem. The collection and analysis of building energy consumption data can enable governments and related departments to make building energy consumption standards and establish a perfect energy consumption supervision system, fundamentally reverse the serious building energy consumption waste situation, and make a contribution to the implementation of strategies of energy conservation, emission reduction and environmental protection and the implementation of relevant policies and laws. The basic function of the building energy consumption data gateway is data acquisition, and the reliability of an energy consumption data source is ensured. The building energy consumption data gateway is a special device for building energy consumption data acquisition, generally adopts an embedded real-time operating system, and has the functions of data acquisition, data processing, data storage, network transmission and the like. The data gateway can improve the collection performance of various energy consumption data of the building, and meanwhile, the data monitoring and management efficiency can also be improved.

With the rapid development of electronic technology, data acquisition devices for data acquisition, data processing and network transmission have appeared in recent years, and the current data acquisition devices for acquiring electric energy, hydroenergy or other building energy consumption data in one area have the defects of single function, poor interference resistance, unreliable communication, short communication distance, poor acquisition stability, poor system reliability, small data storage space and the like, and cannot meet the use requirements of the existing equipment.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the building energy consumption data gateway has the characteristics of high data acquisition stability, strong anti-interference capability, reliable data storage, reliable system and the like.

The utility model provides a technical scheme that its technical problem adopted is: a building energy consumption data gateway comprises a low-power-consumption processor module, a data storage module, a data acquisition module and a watchdog module; the data acquisition module is connected with the low-power-consumption processor through a UART interface; the data storage module is connected with the low-power-consumption processor through an EMC (electro magnetic compatibility) and SPI (serial peripheral interface); the watchdog module is directly connected with the low-power-consumption processor;

in order to improve the data acquisition stability, the data acquisition module is provided with an RS-485 module with photoelectric isolation through a UART interface, has the functions of surge resistance and lightning protection, and well protects the communication of a system and data; the RS-485 module is provided with A, B two circuits, a resistor is arranged between A, B two circuits through a dial switch, and the collection stability is improved through the selectable resistors to adapt to the collection difference of different metering instruments.

Furthermore, the utility model also comprises a power module, a debugging module, a relay module, a wireless communication module, an Ethernet module and a man-machine interface module; the Ethernet module is connected with the low-power-consumption processor through an MAC interface; the wireless communication module is connected with the low-power processor through a UART interface; the power supply module and the human-computer interface module are directly connected with the low-power processor; the relay module is connected with the low-power-consumption processor through the GPIO interface; the debugging module is connected with the low-power-consumption processor through a JTAG interface.

Still further say, power module convert 9V-15V's voltage to 3.3V after 5V, provide 3.3V's steady voltage DC power supply for the low-power consumption treater.

Still further say that, for the convenience operating personnel can set up each item parameter and inquiry each item energy consumption data at the scene, man-machine interface module include LCD display screen and button.

Still further say, ethernet module and wireless communication module carry out data transmission through three kinds of modes of ethernet, Wi-Fi, 2G 3G and data platform, three kinds of modes can be customized according to concrete different requirements.

The utility model has the advantages that: the intelligent acquisition, processing analysis and remote communication of the building energy consumption data are realized, the stability of data acquisition and the reliability of a data gateway are improved, the anti-interference capability is strong, and the power consumption is low; by adding the RS-485 interface with photoelectric isolation and adding the selectable resistor between A, B lines, the anti-interference capability is enhanced, and the data acquisition stability is improved; by adding the watchdog module, the reliability of the operation of the data gateway is improved; by adding the data storage module, the code storage space is improved, the program storage mode is optimized, the data storage space is additionally improved, and the requirement of building energy consumption data acquisition is met.

Drawings

FIG. 1 is a block diagram illustrating the structure of the present invention;

FIG. 2 is a schematic diagram of the data collection module of the present invention;

fig. 3 is the circuit schematic diagram of the data acquisition module of the present invention.

Detailed Description

The invention will now be described in further detail with reference to the drawings and preferred embodiments. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The building energy consumption data gateway shown in fig. 1 includes a low-power processor module, a power module, a debugging module, a data storage module, a relay module, a data acquisition module, a wireless communication module, an ethernet module, a man-machine interface module, a watchdog module, and the like.

The data acquisition module is connected with the low-power-consumption processor through a UART interface; the Ethernet module is connected with the low-power-consumption processor through the MAC interface; the data storage module is connected with the low-power-consumption processor through EMC and SPI interfaces; the watchdog module is directly connected with the low-power-consumption processor; the wireless communication module is connected with the low-power-consumption processor through a UART interface.

The low-power processor module is a core module of the data gateway, has the functions of data communication, resource sharing, distributed processing and system reliability providing, and has low power consumption so as to meet the requirements of the data gateway; a core is Cortex-M3, which has 1024KB of on-chip memory for storing a main program.

And the power supply module converts the voltage of 9-15V into 5V and then into 3.3V, provides a voltage-stabilized direct-current power supply of 3.3V for the energy consumption data gateway and ensures that the energy consumption data gateway can work orderly.

And the data storage module is used for storing and executing the program codes and storing the building energy consumption data and the configuration data. In addition, due to the limitation of the storage space of the on-chip memory, NOR Flash needs to be expanded for storing and executing codes; the 2MB NORFlash memory holds additional libraries; the 32MB SDRAM is used as an internal memory of the data gateway and is used for supporting the operation of a data network management system; the 512MB NAND Flash memory is specially used for storing energy consumption data, and can support 1-year data storage under the condition that the maximum number of supportable instruments are connected to the data gateway;

the data acquisition module is used for acquiring building energy consumption data in an RS-485 serial communication mode; the system supports an RS-485 interface with photoelectric isolation, realizes data acquisition, has the functions of surge resistance and lightning protection, and well protects the communication of the system and data; as shown in fig. 2-3, selectable 120 Ω resistance is added between A, B lines of the RS-485 module to adapt to the acquisition difference of different metering instruments, thereby improving the acquisition stability; when the RS-485 interface is connected with the metering instrument, the RS-485 interface can be configured separately according to different communication protocols supported by the metering instrument, and can support protocols such as DL/T645-1997, DL/T645-2007, CJ/T188-2004, GB/T19582-2008(Modbus) and the like.

The wireless communication module realizes wireless data transmission; the Ethernet module is used for connecting a local area network or the Internet, carrying out detailed configuration on the data gateway, and simultaneously displaying the information of the acquired data and sending a device control command in real time; the data transmission is carried out with the data platform through three modes of Ethernet, Wi-Fi and 2G/3G, and the three modes can be customized according to different specific requirements.

The man-machine interface module is an interface of input and output equipment for establishing contact and exchanging information between a person and a machine; through the LCD display screen and the keys, the field operator can set various parameters and inquire various energy consumption data.

The watchdog module ensures the reliability of the operation of the data gateway; the automatic recovery function is realized, and the normal working state can be automatically recovered from the fault or the abnormity. The data gateway executes the dog feeding operation to the watchdog module at regular time after being started, and after a certain time limit is exceeded and no dog is fed, the data gateway is reset and restarted to realize an automatic recovery function, namely, the data gateway can be automatically recovered to a normal working state from a fault or an abnormality.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A building energy consumption data gateway, its characterized in that: the system comprises a low-power-consumption processor module, a data storage module, a data acquisition module and a watchdog module; the data acquisition module is connected with the low-power-consumption processor through a UART interface; the data storage module is connected with the low-power-consumption processor through an EMC (electro magnetic compatibility) and SPI (serial peripheral interface); the watchdog module is directly connected with the low-power-consumption processor; the data acquisition module is provided with an RS-485 module with photoelectric isolation through a UART interface, the RS-485 module is provided with A, B two lines, and a resistor is arranged between A, B two lines through a dial switch.

2. The building energy consumption data gateway of claim 1, wherein: the system also comprises a power supply module, a debugging module, a relay module, a wireless communication module, an Ethernet module and a human-computer interface module; the Ethernet module is connected with the low-power-consumption processor through an MAC interface; the wireless communication module is connected with the low-power processor through a UART interface; the power supply module and the human-computer interface module are directly connected with the low-power processor; the relay module is connected with the low-power-consumption processor through the GPIO interface; the debugging module is connected with the low-power-consumption processor through a JTAG interface.

3. The building energy consumption data gateway of claim 2, wherein: the power module converts 9-15V voltage into 5V voltage and then into 3.3V voltage, and provides a 3.3V voltage-stabilized direct-current power supply for the low-power processor.

4. The building energy consumption data gateway of claim 2, wherein: the man-machine interface module comprises an LCD display screen and keys.

5. The building energy consumption data gateway of claim 2, wherein: the Ethernet module and the wireless communication module carry out data transmission with the data platform in three modes of Ethernet, Wi-Fi and 2G/3G.