CN113794737A - Non-standard terminal node equipment data interaction system - Google Patents
Non-standard terminal node equipment data interaction system Download PDFInfo
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- CN113794737A CN113794737A CN202111210288.1A CN202111210288A CN113794737A CN 113794737 A CN113794737 A CN 113794737A CN 202111210288 A CN202111210288 A CN 202111210288A CN 113794737 A CN113794737 A CN 113794737A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/40—Arrangements in telecontrol or telemetry systems using a wireless architecture
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
Abstract
The invention relates to the technical field of LoRaWAN gateways, and discloses a data interaction system of nonstandard terminal node equipment, which comprises a gateway, a server, a protocol library and an electric meter group, wherein the gateway comprises a processor module, a 3G module, an expansion board module, a baseband chip module and an old meter management and reading control module, the electric meter group comprises DJZ207-DJZ210RF electric meters and DJZ213LoRaWAN electric meters, the output end of the server is in communication connection with the 3G module in a standard JSON array form through UDP, the input end of the server is in communication connection with the 3G module in a standard JSON array form through UDP, and the server is in bidirectional communication connection with the 3G module in a LoRaWAN Serner JSON form through UDP. The invention can read the meter through an AMI system of a LoRaWAN wireless networking according to different manufacturers and different RF electric meter equipment of a client site, simultaneously solves the problems of product iterative updating and communication protocol compatibility, and realizes the diversified protocol mechanism communication and data interaction functions of the product on the basis of not violating the LoRaWAN protocol standard technology.
Description
Technical Field
The invention relates to the technical field of LoRaWAN gateways, in particular to a data interaction system of nonstandard terminal node equipment.
Background
The LoRa technology realizes long-distance point-to-point communication on a physical layer, and the LoRa alliance releases LoRaWAN technical specifications on the basis of the long-distance point-to-point communication technology, so that the LoRaWAN technical specifications become one of important technical standards of LPWAN (Low Power consumption Long distance Wide area network), a communication protocol and a system framework of a network are defined, a communication gateway conforming to the LoRaWAN standard can be accessed to tens of thousands of wireless nodes within 5 to 10 kilometers, and the efficiency of the communication gateway is far higher than that of a traditional point-to-point polling communication mode.
The LoRaWAN core node gateway device is used for bearing data interaction with the NS server and the terminal node LoRaWAN, and data forwarded by the LoRaWAN core node gateway device must meet the LoRaWAN protocol standard; however, as the RF electric meter equipment which is already operated on site does not conform to the LoRaWAN protocol standard, the market demand needs to be met to realize the AMI centralized meter reading function; therefore, the virtual terminal communication technology meeting the LoRaWAN terminal node data interaction is realized in the gateway equipment, so that data interaction is carried out on different protocols and different physical equipment through the LoRaWAN gateway.
However, the existing data interaction of the non-LoRaWAN terminal node has the following disadvantages: the method comprises the following steps that 1, an NS server manages electric meter archive information of non-standard LoRaWAN terminal equipment, and allocates AppSkey, short addresses and long addresses of the terminal electric meters, and application-related protocols, reading data items, task time and the like, so that the following defects exist; 2. downloading the information of the nonstandard LoRaWAN electric meters into a gateway, and storing the information into a gateway memory by the gateway according to the downloaded task and protocol related information; 3. and the gateway completes protocol conversion according to the stored node information task and protocol format, reads data of different RF application equipment, uploads an application data frame to the NS server through AppSkey and short address encryption by using a virtual table technology according to the responded nonstandard LoRaWAN data to complete data interaction. Therefore, those skilled in the art provide a non-standard terminal node device data interaction system to solve the problems set forth in the above background art.
Disclosure of Invention
The present invention aims to provide a data interaction system for non-standard terminal node devices, so as to solve the problems proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a data interaction system of non-standard terminal node equipment comprises a gateway, a server, a protocol library and a ammeter group;
the gateway comprises a processor module, a 3G module, an expansion board module, a baseband chip module and an old meter management and reading control module;
wherein:
the processor module is electrically connected with the old meter management and reading control module;
the processor module is connected with the expansion board module and the baseband chip module through an SPI bus;
the input end of the processor module is in communication connection with the 3G module through the diffusion JSON array, the output end of the processor module is in communication connection with the 3G module through the standard JSON array, and the processor module is in bidirectional communication connection with the 3G module through the standard JSON array in a LoRaWAN link control mode;
the electric meter group comprises DJZ207-DJZ210RF electric meters and DJZ213LoRaWAN electric meters;
wherein:
the base meter module and the RF module in the DJZ213LoRaWAN electric meter are in mutual communication connection in a local +21 protocol mode through a Uart bus, and the DJZ213LoRaWAN electric meter and the baseband chip module are in bidirectional communication connection through a LoRaWAN MAC protocol;
the DJZ213LoRaWAN electric meter and the expansion board module are in bidirectional communication connection in a DLT645+21 protocol mode through Lora;
the output end of the server is in communication connection with the 3G module through a UDP in a standard JSON array form, the input end of the server is in communication connection with the 3G module through the standard JSON array form, and the server is in bidirectional communication connection with the 3G module through the UDP in a LoRaWAN Serner JSON form.
As a still further scheme of the invention: the model of the processor module is Cortex-A7, and the processor module adopts a unified framework, supports DX9, SM3.0 and OpenGL ES 2.0, and supports 2D and 3D, GPGPU processing.
As a still further scheme of the invention: the model of the baseband chip module is Sx1301(923M-925M), which is a complex composed of 2 MCUs and an ASIC, wherein the 2 MCUs are respectively a radio frequency MCU and a data packet MCU, the radio frequency MCU is connected with the 2 SX125x slices through an SPI bus and mainly responsible for real-time automatic gain control, radio frequency calibration and transceiving switching, the data packet MCU is responsible for distributing 8 LoRa modems to a plurality of channels, the mechanism for arbitrating data packets comprises rate, channel, radio frequency and signal strength, the bandwidth of the LoRa channels of IF 0-IF 7 is fixed to 125kHz, each channel can be provided with center frequency, each channel can receive LoRa signals with 6 rates of SF 7-SF 12, the bandwidth of the IF8 channel supports 125/250/500kHz for high-speed communication between gateways, and the IF9 channel is used for transceiving (G) FSK signals.
As a still further scheme of the invention: the model of the expansion board module is Sx1262(915M), the expansion board module carries out data transmission through an Rx/Tx serial port, and the communication transmission distance reaches 5 km.
As a still further scheme of the invention: the server and the protocol library are maintained in a bi-directional communication connection via TCP/IP in the form of an application layer 21 protocol.
As a still further scheme of the invention: the protocol library corresponds to the HES system.
Compared with the prior art, the invention has the beneficial effects that:
the invention can read the meter through an AMI system of a LoRaWAN wireless networking according to different manufacturers and different RF electric meter equipment of a client site, simultaneously solves the problems of product iterative updating and communication protocol compatibility, and realizes the diversified protocol mechanism communication and data interaction functions of the product on the basis of not violating the LoRaWAN protocol standard technology.
Drawings
FIG. 1 is a schematic structural diagram of a non-standard terminal node device data interaction system;
Detailed Description
Referring to fig. 1, in an embodiment of the present invention, an interactive system for data of a non-standard terminal node device includes a gateway, a server, a protocol library, and a meter group;
the gateway comprises a processor module, a 3G module, an expansion board module, a baseband chip module and an old meter management and reading control module;
wherein:
the processor module is electrically connected with the old meter management and reading control module;
the processor module is connected with the expansion board module and the baseband chip module through an SPI bus;
the input end of the processor module is in communication connection with the 3G module through the diffusion JSON array, the output end of the processor module is in communication connection with the 3G module through the standard JSON array, and the processor module is in bidirectional communication connection with the 3G module through the standard JSON array in a LoRaWAN link control mode;
the electric meter group comprises DJZ207-DJZ210RF electric meters and DJZ213LoRaWAN electric meters;
wherein:
the base meter module and the RF module in the DJZ213LoRaWAN electric meter are in mutual communication connection in a local +21 protocol mode through a Uart bus, and the DJZ213LoRaWAN electric meter and the baseband chip module are in bidirectional communication connection through a LoRaWAN MAC protocol;
the DJZ213LoRaWAN electric meter and the expansion board module are in bidirectional communication connection in a DLT645+21 protocol mode through Lora;
the output end of the server is in communication connection with the 3G module in a standard JSON array form through UDP, the input end of the server is in communication connection with the 3G module in the standard JSON array form, and the server is in bidirectional communication connection with the 3G module in a LoRaWAN Serner JSON form through UDP.
The model of the processor module is Cortex-A7, and the processor module adopts a unified architecture, supports DX9, SM3.0 and OpenGL ES 2.0, and simultaneously supports 2D and 3D, GPGPU processing.
The model of the baseband chip module is Sx1301923M-925M, which is a complex composed of 2 MCUs and an ASIC, wherein the 2 MCUs are respectively a radio frequency MCU and a data packet MCU, the radio frequency MCU is connected with 2 SX125x through an SPI bus and mainly responsible for real-time automatic gain control, radio frequency calibration and transceiving switching, the data packet MCU is responsible for distributing 8 LoRa modems to a plurality of channels, the mechanism for arbitrating data packets comprises rate, channel, radio frequency and signal strength, the bandwidth of the LoRa channels of IF 0-IF 7 is fixed to 125kHz, each channel can be provided with center frequency, each channel can receive LoRa signals with 6 rates of SF 7-SF 12, the bandwidth of the IF8 channel supports 125/250/500kHz and is used for high-speed communication between gateways, and the IF9 channel is used for transceiving GFSK signals.
The model of the expansion board module is Sx1262915M, and the expansion board module carries out data transmission through an Rx/Tx serial port, and the communication transmission distance is as long as 5 km.
The server and the protocol library are maintained in a bi-directional communication connection via TCP/IP in the form of an application layer 21 protocol.
The protocol library corresponds to the HES system.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (6)
1. A non-standard terminal node equipment data interaction system is characterized in that the interaction system comprises a gateway, a server, a protocol library and a ammeter group;
the gateway comprises a processor module, a 3G module, an expansion board module, a baseband chip module and an old meter management and reading control module;
wherein:
the processor module is electrically connected with the old meter management and reading control module;
the processor module is connected with the expansion board module and the baseband chip module through an SPI bus;
the input end of the processor module is in communication connection with the 3G module through the diffusion JSON array, the output end of the processor module is in communication connection with the 3G module through the standard JSON array, and the processor module is in bidirectional communication connection with the 3G module through the standard JSON array in a LoRaWAN link control mode;
the electric meter group comprises DJZ207-DJZ210RF electric meters and DJZ213LoRaWAN electric meters;
wherein:
the base meter module and the RF module in the DJZ213LoRaWAN electric meter are in mutual communication connection in a local +21 protocol mode through a Uart bus, and the DJZ213LoRaWAN electric meter and the baseband chip module are in bidirectional communication connection through a LoRaWAN MAC protocol;
the DJZ213LoRaWAN electric meter and the expansion board module are in bidirectional communication connection in a DLT645+21 protocol mode through Lora;
the output end of the server is in communication connection with the 3G module through a UDP in a standard JSON array form, the input end of the server is in communication connection with the 3G module through the standard JSON array form, and the server is in bidirectional communication connection with the 3G module through the UDP in a LoRaWAN Serner JSON form.
2. The non-standard end node device data interaction system of claim 1, wherein the processor module is of a type Cortex-a7, and adopts a unified architecture, supporting DX9, SM3.0, OpenGL ES 2.0, and supporting 2D, 3D, GPGPU processing.
3. The non-standard terminal node device data interaction system as claimed in claim 1, wherein the baseband chip module has a model number of Sx1301(923M-925M), which is a complex consisting of 2 MCUs and ASICs, the 2 MCUs are rf MCUs and packet MCUs, respectively, the rf MCU is connected to 2 Sx125x through SPI bus, and is mainly responsible for real-time automatic gain control, rf calibration and transceiving switching, the packet MCU is responsible for allocating 8 LoRa modems to multiple channels, and its mechanism for arbitrating packets includes rate, channel, rf and signal strength, wherein the bandwidth of the LoRa channel of IF 0-IF 7 is fixed to 125kHz, each channel can set a center frequency, each channel can receive LoRa signals of 6 rates of SF 7-SF 12, and the bandwidth of the IF8 channel supports 125/250/500kHz for high-speed communication between gateways, the IF9 channel is used to transceive (G) FSK signals.
4. The system of claim 1, wherein the expansion board module has a model number of Sx1262(915M), and the expansion board module performs data transmission via an Rx/Tx serial port, and the communication transmission distance is up to 5 km.
5. The system of claim 1, wherein the server is communicatively coupled to the protocol library via TCP/IP in a form of an application layer 21 protocol.
6. The non-standard end node device data interaction system of claim 1, wherein the protocol library corresponds to an HES system.
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| CN202111210288.1A CN113794737A (en) | 2021-10-18 | 2021-10-18 | Non-standard terminal node equipment data interaction system |
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Cited By (1)
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| CN114500677A (en) * | 2021-12-29 | 2022-05-13 | 广东信尚安物联科技有限公司 | LoRaWAN protocol communication converter and communication method thereof |
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