CN106411725A - Internet of Things (IOT) universal gateway for building energy system - Google Patents
Internet of Things (IOT) universal gateway for building energy system Download PDFInfo
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- CN106411725A CN106411725A CN201510463737.1A CN201510463737A CN106411725A CN 106411725 A CN106411725 A CN 106411725A CN 201510463737 A CN201510463737 A CN 201510463737A CN 106411725 A CN106411725 A CN 106411725A
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Abstract
The invention relates to an Internet of Things (IOT) universal gateway for a building energy system. The IOT universal gateway is stable and efficient, reliable in communication, and expandable and can run stably. The IOT universal gateway comprises a kernel ARM processor, an Ethernet circuit, a power management module, a DC-DC power module, an RS485-1 acquisition circuit, an RS485-2 acquisition circuit, a serial port debugging circuit, a reset circuit, a JTAG download circuit, an LED indicating circuit, a SD card memory circuit, an E2PROM memory circuit. The kernel ARM processor communicates with the SD card memory circuit and the E2PROM memory circuit. The Ethernet circuit communicates with the kernel ARM processor. The RS485-1 acquisition circuit and RS485-2 acquisition circuit communicate with the kernel ARM processor. The serial port debugging circuit is connected with the kernel ARM processor. The signal output end of the kernel ARM processor is connected with the LED indicating circuit.
Description
Technical field
The invention belongs to building energy technical field, more particularly to a kind of Internet of Things universal gateway of building energy system.
Background technology
The energy always is the important substance basis that the mankind depend on for existence and development, continuous improvement with social constantly progressive and living standards of the people, energy demand is increasingly increased and is gradually aggravated with the contradiction of energy resource supply relative deficiency, and therefore, energy-conservation becomes a topic of the common concern in the whole world；BP world energy sources statistical yearbook shows within 2011, and China has become the maximum country of energy resource consumption in the world, and energy-output ratio accounts for the 20.3% of global energy total amount consumed, and the energy-saving and emission-reduction pressure being born is big self-evident.At present, building operation energy consumption in use has been over the 24% of national economy energy consumption, architectural energy consumption consumes energy side by side with industrial consumption energy, traffic, become three big " big power consumers " of AND ENERGY RESOURCES CONSUMPTION IN CHINA, building energy conservation or become and solve one of energy supply important channel that is not enough and improving efficiency of energy utilization.
Content of the invention
The present invention is aiming at the problems referred to above, makes up the deficiencies in the prior art, provides a kind of Internet of Things universal gateway of building energy system；Performance stability and high efficiency of the present invention, reliable communications, have extensibility；Can reliablely and stablely run, meet the demand to data acquisition and transmission for the building energy system Internet of Things.
For realizing the above-mentioned purpose of the present invention, the present invention adopts the following technical scheme that.
A kind of Internet of Things universal gateway of present invention building energy system, including Cortex-M3 core A RM processor, ethernet circuit, power management module, DC-DC power module, RS485-1 Acquisition Circuit, RS485-2 Acquisition Circuit, AccessPort circuit, reset circuit, JTAG download circuit, LED indicating circuit, SD card storage circuit, E2PROM storage circuit；Its structural feature is：Described power management module is responsible for the power supply supply of whole system；Described Cortex-M3 core A RM processor is communicated with SD card storage circuit by SDIO high-speed serial bus, and described Cortex-M3 core A RM processor passes through I2C universal serial bus and E2PROM storage circuit is communicated；Described ethernet circuit is communicated with Cortex-M3 core A RM processor by SPI interface, described RS485-1 Acquisition Circuit and RS485-2 Acquisition Circuit are communicated with Cortex-M3 core A RM processor by UART1 interface and UART2 interface respectively, described AccessPort circuit is connected with Cortex-M3 core A RM processor by UART0 interface, and the signal output part of Cortex-M3 core A RM processor is connected with LED indicating circuit.
As a preferred embodiment of the present invention, described Cortex-M3 core A RM processor adopts STM32F103VET6.
As another kind of preferred version of the present invention, described ethernet circuit adopts the one of integrated hardware protocol stack
Body chips W 5100.
As another kind of preferred version of the present invention, described RS485-1 Acquisition Circuit and RS485-2 Acquisition Circuit adopt ADM2483 chip to constitute；Described ADM2483 chip is 2 tunnels, is connected with Cortex-M3 core A RM processor with UART2 interface by UART1 interface respectively.
The invention has the beneficial effects as follows.
The present invention is directed to energy consumption data acquisition and the demand of transmission in building energy system Internet of Things and provides a kind of Internet of Things universal gateway of building energy system, based on Cortex-M3 core A RM processor STM32F103VET6, there is the functions such as protocol conversion, data acquisition, data storage, network transmission；Data is previously written in SD card memorizer, overcomes the data loss problem that network failure causes, the performance of the present invention stability and high efficiency of the application in building energy consumption monitoring system, reliable communications, has extensibility.
Present invention achieves the function such as protocol conversion between sensing layer Sensor Network and data center server, data interaction, this gateway first passes through the collection that RS485 fieldbus realizes building energy consumption information, then it is stored in SD card in the form of an xml-file, consumption information is uploaded onto the server by the Transmission Control Protocol finally by Ethernet；Carrying out in a deep going way with energy conservation, building energy system Internet of Things universal gateway will have broad application prospects.
Brief description
Fig. 1 is a kind of structure chart of the Internet of Things universal gateway of present invention building energy system.
Fig. 2 is gateway and data center's communication frame format figure of the present invention.
Fig. 3 is gateway and data center's communication flow diagram of the present invention.
Specific embodiment
As shown in figure 1, the structure chart of the Internet of Things universal gateway for a kind of present invention building energy system.Including Cortex-M3 core A RM processor, ethernet circuit, power management module, DC-DC power module, RS485-1 Acquisition Circuit, RS485-2 Acquisition Circuit, AccessPort circuit, reset circuit, JTAG download circuit, LED indicating circuit, SD card storage circuit, E2PROM storage circuit；Its structural feature is：Described power management module is responsible for the power supply supply of whole system；Described Cortex-M3 core A RM processor is communicated with SD card storage circuit by SDIO high-speed serial bus, and described Cortex-M3 core A RM processor passes through I2C universal serial bus and E2PROM storage circuit is communicated；Described ethernet circuit is communicated with Cortex-M3 core A RM processor by SPI interface, described RS485-1 Acquisition Circuit and RS485-2 Acquisition Circuit are communicated with Cortex-M3 core A RM processor by UART1 interface and UART2 interface respectively, described AccessPort circuit is connected with Cortex-M3 core A RM processor by UART0 interface, and the signal output part of Cortex-M3 core A RM processor is connected with LED indicating circuit.
Described Cortex-M3 core A RM processor adopts STM32F103VET6.Described ethernet circuit adopts the integrated chip W5100 of integrated hardware protocol stack.Described RS485-1 Acquisition Circuit and RS485-2 Acquisition Circuit adopt ADM2483 chip to constitute；Described ADM2483 chip is 2 tunnels, is connected with Cortex-M3 core A RM processor with UART2 interface by UART1 interface respectively.
The stable operation of Internet of Things universal gateway of the present invention is closely related with the interference free performance of power module, take addition over-current detection electric fuse and prevent the measures such as reversed diode, simultaneously in order to improve the stability of RS485 data acquisition module, using B0505S isolated from power chip, the logical end being ADM2383 and bus end are powered. add the working condition that 3 paths of LEDs lamps are used to refer to gateway, i.e. configuration status, acquisition state, network transmission state.
Described gateway and data center communication protocol need self-defined, and from the angle of communication security, the present invention defines gateway and data center's communication protocol frame format；Shown in Figure 2, type of data packet is divided into authentication bag, configuration bag, heartbeat packet, time service bag, energy consumption data bag, data answering bag, fault bag, fault response bag, and id information totally 27, by 10 building ID, 2 gateway ID, 14 temporal informations（Year, month, day, hour, minute, second）And the abbreviation code of 1 data packet format（V 、T 、D 、E）Composition.Transmission bag is with XML（extensible markup language）Form carries out packing encapsulation, is easy to parsing and data is extracted.
Gateway and server set up TCP（transmission control
protocol）After connection, send ID authentication request, after receiving one group of random sequence that server issues, random sequences are become a new character string with the cipher key combinations of storage in gateway, and carries out MD5 computing, the result obtaining is sent to server and is verified, the result that the result receiving is calculated with itself is compared by server, as consistent, then authentication is passed through, and starts ensuing configuration flow；Otherwise authentication failure, not configures；Communication process between gateway and data center, shown in Figure 3.
It is understandable that, above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to the technical scheme described by the embodiment of the present invention, it will be understood by those within the art that, still the present invention can be modified or equivalent, to reach identical technique effect；As long as meeting and using needs, all within protection scope of the present invention.
Claims (4)
1. a kind of Internet of Things universal gateway of building energy system, including Cortex-M3 core A RM processor, ethernet circuit, power management module, DC-DC power module, RS485-1 Acquisition Circuit, RS485-2 Acquisition Circuit, AccessPort circuit, reset circuit, JTAG download circuit, LED indicating circuit, SD card storage circuit, E2PROM storage circuit；It is characterized in that：Described power management module is responsible for the power supply supply of whole system；Described Cortex-M3 core A RM processor is communicated with SD card storage circuit by SDIO high-speed serial bus, and described Cortex-M3 core A RM processor passes through I2C universal serial bus and E2PROM storage circuit is communicated；Described ethernet circuit is communicated with Cortex-M3 core A RM processor by SPI interface, described RS485-1 Acquisition Circuit and RS485-2 Acquisition Circuit are communicated with Cortex-M3 core A RM processor by UART1 interface and UART2 interface respectively, described AccessPort circuit is connected with Cortex-M3 core A RM processor by UART0 interface, and the signal output part of Cortex-M3 core A RM processor is connected with LED indicating circuit.
2. a kind of building energy system according to claim 1 Internet of Things universal gateway it is characterised in that：Described Cortex-M3 core A RM processor adopts STM32F103VET6.
3. a kind of building energy system according to claim 1 Internet of Things universal gateway it is characterised in that：Described ethernet circuit adopts the integrated chip W5100 of integrated hardware protocol stack.
4. a kind of building energy system according to claim 1 Internet of Things universal gateway it is characterised in that：Described RS485-1 Acquisition Circuit and RS485-2 Acquisition Circuit adopt ADM2483 chip to constitute；Described ADM2483 chip is 2 tunnels, is connected with Cortex-M3 core A RM processor with UART2 interface by UART1 interface respectively.
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| CN201510463737.1A CN106411725A (en) | 2015-08-02 | 2015-08-02 | Internet of Things (IOT) universal gateway for building energy system |
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| CN201510463737.1A CN106411725A (en) | 2015-08-02 | 2015-08-02 | Internet of Things (IOT) universal gateway for building energy system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855704A (en) * | 2017-03-21 | 2017-06-16 | 广东技术师范学院 | A kind of data acquisition unit in Architectural Equipment information access high in the clouds |
| CN107037768A (en) * | 2017-05-15 | 2017-08-11 | 安徽亿纵电子科技有限公司 | A kind of building energy consumption safety monitoring system |
| CN108596786A (en) * | 2018-04-25 | 2018-09-28 | 杭州泰珏科技有限公司 | A kind of building energy consumption managing device |
| CN114460880A (en) * | 2022-02-10 | 2022-05-10 | 芯河半导体科技(无锡)有限公司 | Industrial Internet of things network management controller based on cotex-M3 |
-
2015
- 2015-08-02 CN CN201510463737.1A patent/CN106411725A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106855704A (en) * | 2017-03-21 | 2017-06-16 | 广东技术师范学院 | A kind of data acquisition unit in Architectural Equipment information access high in the clouds |
| CN107037768A (en) * | 2017-05-15 | 2017-08-11 | 安徽亿纵电子科技有限公司 | A kind of building energy consumption safety monitoring system |
| CN108596786A (en) * | 2018-04-25 | 2018-09-28 | 杭州泰珏科技有限公司 | A kind of building energy consumption managing device |
| CN114460880A (en) * | 2022-02-10 | 2022-05-10 | 芯河半导体科技(无锡)有限公司 | Industrial Internet of things network management controller based on cotex-M3 |
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Application publication date: 20170215 |