CN210136414U

CN210136414U - Novel sensor network concentrator based on LPWAN

Info

Publication number: CN210136414U
Application number: CN201921197532.3U
Authority: CN
Inventors: 孙翔; 何源; 曾佳俊
Original assignee: Chengdu University of Information Technology
Current assignee: Chengdu University of Information Technology
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-03-10
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a novel sensor network concentrator based on LPWAN, which comprises a shell, a main control core board and a main board; a main control core board and a main board are fixedly arranged in the shell; the main control core board is fixed on the mainboard, the mainboard is fixed with: the SD card, the SD card slot, the Ethernet module, the OTG module, power module, the RTC module, RS232 communication module, the GPS module, the 4G module, the SIM card, bluetooth module, the WIFI module, 485 communication module, CAN bus module, first SX1301 module, second SX1301 module, gateway radio frequency unit, first Mini-PCIE slot, second Mini-PCIE slot and third Mini-PCIE slot module, the problem that the present concentrator received data and sent data channel less, main control chip throughput is not strong and do not have the industry linkage interface has been solved.

Description

Novel sensor network concentrator based on LPWAN

Technical Field

The utility model relates to a low-power consumption wide area network technical field, concretely relates to novel sensor network concentrator based on LPWAN.

Background

With the rapid development of low-power-consumption wide area network technology (LPWAN technology for short), the low-power-consumption wide area network technology is applied to various aspects of life, and more industries change due to the low-power-consumption wide area network technology from a wireless meter reading technology in life to a wireless fire fighting technology in security protection. While low power wan technology is widely used, it also faces more challenges. With the widespread use of wireless sensing technology in various industries, centralized processing of data is becoming a difficult problem that must be solved as soon as possible. There are many disadvantages with the concentrator of various terminals currently using the Lora technology. The existing Lora sensor network concentrator is only responsible for centralized processing of data and networking of received data. It also has the following disadvantages:

A. at present, a sensor network concentrator has fewer channels for receiving and sending data, and the packet loss rate is high when a plurality of lora terminals send data simultaneously;

B. the current sensor network concentrator master control chip has weak processing capability and cannot support high-intensity operation;

C. at present, the sensor network concentrator cannot realize industrial control because no industrial linkage interface exists.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of novel sensor network concentrator based on LPWAN has solved present sensor network concentrator received data and has sent data channel less, main control chip throughput weak and do not have the problem of industry linkage interface not.

In order to achieve the purpose of the invention, the utility model adopts the technical scheme that: a novel sensor network concentrator based on LPWAN comprises a shell, a main control core board and a main board; a main control core board and a main board are fixedly arranged in the shell; the main control core board is fixed on the mainboard, the mainboard is fixed with: the system comprises an SD card, an SD card slot, an Ethernet module, an OTG module, a power supply module, an RTC module, an RS232 communication module, a GPS module, a 4G module, an SIM card, a Bluetooth module, a WIFI module, a 485 communication module, a CAN bus module, a first SX1301 module, a second SX1301 module, a gateway radio frequency unit, a first Mini-PCIE slot, a second Mini-PCIE slot and a third Mini-PCIE slot module;

the power supply module comprises a power plug;

the OTG module comprises an OTG plug;

the Ethernet module comprises an Ethernet interface and a double-layer USB interface;

the RS232 communication module comprises an RS232 debugging interface;

the 485 communication module comprises a 485 communication interface;

the CAN bus module comprises a CAN bus interface;

the power plug, the double-layer USB interface, the OTG plug, the 485 communication interface, the CAN bus interface, the Ethernet interface and the RS232 debugging interface penetrate through the shell and are fixedly connected with the shell;

the SD card is inserted into the SD card slot and is in communication connection with the main control core board through the gateway radio frequency unit;

the master control core board is respectively in communication connection with the Ethernet module, the OTG module, the RTC module, the RS232 communication module, the GPS module, the Bluetooth module, the 485 communication module, the first Mini-PCIE slot, the second Mini-PCIE slot, the third Mini-PCIE slot module and the CAN bus module through the gateway radio frequency unit;

the WIFI module is in communication connection with the Ethernet module;

the 4G module is inserted into the third Mini-PCIE slot module and is respectively connected with the main control core board, the power supply module and the Ethernet module through the gateway radio frequency unit;

the SIM card is in communication connection with the third Mini-PCIE slot module;

the first SX1301 module is inserted into a first Mini-PCIE slot and is respectively connected with the main control core board and the power supply module through the gateway radio frequency unit;

the second SX1301 module is inserted into a second Mini-PCIE slot and is respectively connected with the main control core board and the power supply module through the gateway radio frequency unit;

the power module is respectively and electrically connected with the gateway radio frequency unit, the third Mini-PCIE slot module, the Ethernet module, the WIFI module, the SD card, the RS232 communication module, the CAN bus module, the first Mini-PCIE slot, the second Mini-PCIE slot, the Bluetooth module, the GPS module, the RTC module and the 485 communication module.

Further: the power supply module comprises a power supply short circuit prevention module, a 3.3V voltage stabilization module and a power supply control module;

the power supply short circuit prevention module comprises a power supply plug, a core chip of the power supply plug adopts a Si7129DN power supply chip, and a peripheral interface of the power supply short circuit prevention module comprises: the +5V end and the 5V _ core end of the power supply short-circuit prevention module and the GND end of the power supply short-circuit prevention module are connected with an external power supply through power plugs;

the core chip of the 3.3V voltage stabilizing module adopts an RT8070ZSP voltage stabilizing chip, and the peripheral interface of the chip comprises: a terminal 5V _ core, a terminal 3P3V, a terminal 3P3V _ EN, a terminal GEN _3V3 and a GND terminal;

the power control module includes: power chip FDC642P and MOS pipe 2N7002, its periphery interface includes: a 3P3V _ EN terminal, a 5V _ core terminal, a 5VIN terminal and a GND terminal;

the 5V _ core end of the power supply short-circuit prevention module is respectively and electrically connected with the 5V _ core end of the 3.3V voltage stabilization module and the 5V _ core end of the power supply control module;

the 3P3V end of the 3.3V voltage stabilizing module is electrically connected with the gateway radio frequency unit;

the 3P3V _ EN end of the 3.3V voltage stabilizing module is electrically connected with the 3P3V _ EN end of the power supply control module;

the GND end of the 3.3V voltage stabilizing module is connected with the GND end of the power supply short-circuit prevention module;

and the GND end of the power supply control module is connected with the GND end of the power supply short-circuit prevention module.

The beneficial effects of the further scheme are as follows: the Si7129DN is a power supply short-circuit prevention chip and has the characteristic of short circuit prevention, the power supply short-circuit prevention module provides working voltage for the gateway radio frequency unit, so that the 3P3V end of the gateway radio frequency unit outputs high level, the 3P3V end of the 3.3V voltage stabilization module is high level, the 3P3V _ EN end of the 3.3V voltage stabilization module is high level, the 3P3V _ EN end of the power supply control module is high level, and the GEN _3V3 end of the 3.3V voltage stabilization module outputs 3.3V voltage when the 3P3V _ EN end of the 3.3V voltage stabilization module is high level, so as to supply power to each module; when the 3P3V _ EN end of the power control module is at a high level, the 5VIN end of the power control module outputs 5V voltage to provide working voltage for the CAN bus module and the Ethernet stabilized voltage power supply module.

Further: the master control core board that master control core board adopted IMX6 model, the master control core board of IMX6 model adopts cottex A9 core processor, gateway radio frequency unit and master control core board communication connection, all draw forth the peripheral pin of master control core board, supply external module to connect, gateway radio frequency unit's interface includes: the USB interface module comprises a first USB interface, a second USB interface, a first IIC interface, a first UART serial port, a second UART serial port, a third UART serial port, a fourth UART serial port, a fifth UART serial port, a first Mini-PCIE slot interface, a second Mini-PCIE slot interface, a third Mini-PCIE slot module interface, a GPIO interface, a 5V _ core end, a 3P3V end and a GND end; the 5V _ core end is electrically connected with the 5V _ core end of the power supply short-circuit prevention module, the 3P3V end is electrically connected with the 3P3V end of the 3.3V voltage stabilization module, and the GND end is connected with the GND end of the 3.3V voltage stabilization module.

The beneficial effects of the further scheme are as follows: the main control core board of IMX6 type is mainly used for centralized processing of data and providing an SPI interface, a UART serial port, a USB interface and a GPIO interface for a peripheral circuit; the core processor adopts a core processor of cottex A9, has 512M memory and 4G storage space, can transplant linux native, ubuntu system and android system, and solves the problems that the traditional concentrator main control chip has poor processing capability and cannot support high-intensity operation.

The utility model has the advantages that: the concentrator adopts double SX1301 modules, channels for receiving and sending data are increased in multiples, and the packet loss rate of multiple lora terminals for sending data at the same time is reduced; the master control core board of IMX6 model has superstrong data processing ability, supports high strength operation, and RS232 communication module, 485 communication module and CAN bus module communicate with external equipment, realize industrial control.

Drawings

FIG. 1 is a communication schematic block diagram of a novel LPWAN-based sensor network concentrator;

FIG. 2 is a power supply schematic block diagram of a novel LPWAN-based sensor network concentrator;

FIG. 3 is a circuit diagram of an OTG module of a novel LPWAN-based sensor network concentrator;

FIG. 4 is a circuit diagram of an SD card of a novel sensor network concentrator based on LPWAN;

FIG. 5 is a circuit diagram of a power supply short-circuit prevention module of a novel LPWAN-based sensor network concentrator;

FIG. 6 is a circuit diagram of a 3.3V voltage stabilizing module of a novel LPWAN-based sensor network concentrator;

FIG. 7 is a circuit diagram of a power control module of a novel LPWAN-based sensor network concentrator;

fig. 8 is an interface schematic diagram of a gateway radio frequency unit of a novel LPWAN-based sensor network concentrator;

fig. 9 is a circuit diagram of a first Mini-PCIE slot of a novel LPWAN-based sensor network concentrator;

fig. 10 is a circuit diagram of a second Mini-PCIE slot of a novel LPWAN-based sensor network concentrator;

FIG. 11 is a circuit diagram of a stabilized Ethernet power supply module of a novel LPWAN-based sensor network concentrator;

FIG. 12 is a partial circuit diagram of Ethernet submodule A of a novel LPWAN-based sensor network concentrator;

FIG. 13 is a partial circuit diagram of Ethernet sub-module B of a novel LPWAN-based sensor network concentrator

FIG. 14 is a circuit diagram of an Ethernet interface of a novel LPWAN-based sensor network concentrator;

FIG. 15 is a circuit diagram of a storage module of a novel LPWAN-based sensor network concentrator;

FIG. 16 is a schematic circuit diagram of an RTC module of a novel LPWAN-based sensor network concentrator;

FIG. 17 is a circuit diagram of an RS232 communication module of a novel LPWAN-based sensor network concentrator;

FIG. 18 is a circuit diagram of a GPS module of a novel LPWAN-based sensor network concentrator;

fig. 19 is a circuit diagram of a third Mini-PCIE slot and a peripheral circuit a portion of the third Mini-PCIE slot of the LPWAN-based novel sensor network concentrator;

fig. 20 is a circuit diagram of a third Mini-PCIE slot and its peripheral circuit B of the LPWAN-based novel sensor network concentrator;

fig. 21 is a circuit diagram of a third Mini-PCIE slot and a peripheral circuit C of the novel LPWAN-based sensor network concentrator;

FIG. 22 is a circuit diagram of a 4G power supply module of a novel LPWAN-based sensor network concentrator;

FIG. 23 is a circuit diagram of a Bluetooth module of a novel LPWAN-based sensor network concentrator;

fig. 24 is a circuit diagram of a WIFI module of a novel LPWAN-based sensor network concentrator;

FIG. 25 is a circuit diagram of a 485 communication module of a novel LPWAN-based sensor network concentrator;

fig. 26 is a circuit diagram of a CAN bus module of a novel LPWAN-based sensor network concentrator.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1, a novel LPWAN-based sensor network concentrator includes a housing, a main control core board, and a main board; a main control core board and a main board are fixedly arranged in the shell; the main control core board is fixed on the mainboard, the mainboard is fixed with: the system comprises an SD card, an SD card slot, an Ethernet module, an OTG module, a power supply module, an RTC module, an RS232 communication module, a GPS module, a 4G module, an SIM card, a Bluetooth module, a WIFI module, a 485 communication module, a CAN bus module, a first SX1301 module, a second SX1301 module, a gateway radio frequency unit, a first Mini-PCIE slot, a second Mini-PCIE slot and a third Mini-PCIE slot module;

the power supply module comprises a power plug;

the OTG module comprises an OTG plug;

the RS232 communication module comprises an RS232 debugging interface;

the 485 communication module comprises a 485 communication interface;

the CAN bus module comprises a CAN bus interface;

the WIFI module is in communication connection with the Ethernet module;

the SX1301 module is a core module in charge of network convergence in the Lora network, and forms a star network with the Lora terminal in a wireless communication mode. The single SX1301 module provides 8-channel data receiving and 1-channel data issuing, namely a single SX1301 module can only receive data of 8 Lora terminals at the same time, the number of the Lora terminal data in an LPWAN network is thousands or even thousands, so that the design of the single SX1301 module easily causes packet loss due to the fact that the data cannot be received in time, the concentrator in the invention adopts the design of double SX1301 modules, the number of channels for receiving and sending the data is multiplied, and the phenomenon of packet loss caused by the fact that a plurality of Lora terminals send the data at the same time can be obviously reduced.

As shown in fig. 2, the power module is electrically connected to the gateway rf unit, the third Mini-PCIE slot module, the ethernet module, the WIFI module, the SD card, the RS232 communication module, the CAN bus module, the first Mini-PCIE slot, the second Mini-PCIE slot, the bluetooth module, the GPS module, the RTC module, and the 485 communication module, respectively.

Fig. 3 is an OTG module with an OTG plug of min _ usb, wherein the CD143A-SR05 device provides surge protection for the OTG module.

Fig. 4 is a circuit diagram of the outside of the SD card, and the SD card is accessed into the SD card slot to expand the memory space of the main control core board.

The power supply module comprises a power supply short circuit prevention module, a 3.3V voltage stabilization module and a power supply control module;

as shown in fig. 5, the power supply short-circuit prevention module includes a power supply plug, a core chip of the power supply plug is a Si7129DN power supply chip, and a peripheral interface of the power supply short-circuit prevention module includes: the +5V end and the 5V _ core end of the power supply short-circuit prevention module and the GND end of the power supply short-circuit prevention module are connected with an external power supply through power plugs;

as shown in fig. 6, the core chip of the 3.3V regulator module adopts an RT8070ZSP regulator chip, and its peripheral interface includes: a terminal 5V _ core, a terminal 3P3V, a terminal 3P3V _ EN, a terminal GEN _3V3 and a GND terminal;

as shown in fig. 7, the power control module includes: power chip FDC642P and MOS pipe 2N7002, its periphery interface includes: a 3P3V _ EN terminal, a 5V _ core terminal, a 5VIN terminal and a GND terminal;

the GND end of the power supply control module is connected with the GND end of the power supply short-circuit prevention module;

the Si7129DN is a power supply short-circuit prevention chip and has the characteristic of short circuit prevention, the power supply short-circuit prevention module provides working voltage for the gateway radio frequency unit, so that the 3P3V end of the gateway radio frequency unit outputs high level, the 3P3V end of the 3.3V voltage stabilization module is high level, the 3P3V _ EN end of the 3.3V voltage stabilization module is high level, the 3P3V _ EN end of the power supply control module is high level, and the GEN _3V3 end of the 3.3V voltage stabilization module outputs 3.3V voltage when the 3P3V _ EN end of the 3.3V voltage stabilization module is high level, so as to supply power to each module; when the 3P3V _ EN end of the power control module is at a high level, the 5VIN end of the power control module outputs 5V voltage to provide working voltage for the CAN bus module and the Ethernet stabilized voltage power supply module.

The master control core board that master control core board adopted the IMX6 model, the master control core board of IMX6 model adopts cortex A9 core processor, gateway radio frequency unit and master control core board communication connection, as shown in FIG. 8, draw the peripheral pin of master control core board totally, supply external module to connect, the interface of gateway radio frequency unit includes: the USB interface module comprises a first USB interface, a second USB interface, a first IIC interface, a first UART serial port, a second UART serial port, a third UART serial port, a fourth UART serial port, a fifth UART serial port, a first Mini-PCIE slot interface, a second Mini-PCIE slot interface, a third Mini-PCIE slot module interface, a GPIO interface, a 5V _ core end, a 3P3V end and a GND end; the 5V _ core end is electrically connected with the 5V _ core end of the power supply short-circuit prevention module, and the 3P3V end is electrically connected with the 3P3V end of the 3.3V voltage stabilization module.

The main control core board of IMX6 type is mainly used for centralized processing of data and providing an SPI interface, a UART serial port, a USB interface and a GPIO interface for a peripheral circuit; the core processor adopts a core processor of cottex A9, has 512M memory and 4G storage space, can transplant linux native, ubuntu system and android system, and solves the problems that the traditional concentrator main control chip has poor processing capability and cannot support high-intensity operation.

As shown in fig. 9, the first Mini-PCIE slot is accessed to the gateway radio frequency unit through the first Mini-PCIE slot interface;

as shown in fig. 10, the second Mini-PCIE slot is accessed to the gateway radio frequency unit through the second Mini-PCIE slot interface;

the Ethernet module comprises: the Ethernet voltage-stabilizing power supply comprises an Ethernet submodule, an Ethernet voltage-stabilizing power supply module, an Ethernet interface and a storage module;

as shown in fig. 11, the core chip of the regulated ethernet power supply module employs an LM3526MX-H, and its peripheral interface includes: the power supply control module comprises a 5VIN end, a PRTCTL2 end, a PRTCTL3 end, a PWR1 end, a PWR2 end and a GND end, wherein the 5VIN end is electrically connected with the 5VIN end of the power supply control module, and the GND end is electrically connected with the GND end of the power supply control module;

as shown in fig. 12 to 13, the circuit of the ethernet sub-module includes a part a and a part B, the ethernet sub-module includes a dual-layer USB interface, the ethernet chip of the ethernet sub-module adopts a LAN9514, and its peripheral interface includes: a GEN _3V3 end, a GND end, a PRTCTL2 end, a PRTCTL3 end, a USB _ HOST _ DP end, a USB _ HOST _ DN end, a USBDN _ DP3_ B end, a USBDN _ DM3_ B end, a 4G _ USBDP end, a 4G _ USBDM end, an EEDO end, an EECS end, an EECLK end, an RXP0 end, an RXN0 end, a TXP0 end and a TXN0 end; the GEN _3V3 end of the Ethernet sub-module is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end of the Ethernet sub-module is electrically connected with the GND end of the 3.3V voltage stabilizing module; the PRTCTL2 end of the Ethernet submodule is connected with the PRTCTL2 end of the Ethernet stabilized voltage power supply module, the PRTCTL3 end of the Ethernet submodule is connected with the PRTCTL3 end of the Ethernet stabilized voltage power supply module, the Ethernet submodule controls the PWR1 end and the PWR2 end of the Ethernet stabilized voltage power supply module through the PRTCTL2 end and the PRTCTL3 end, the PWR1 end of the Ethernet stabilized voltage power supply module is electrically connected with the PWR1 end of the double-layer USB interface, the PWR2 end of the Ethernet stabilized voltage power supply module is electrically connected with the PWR2 end of the double-layer USB interface, power is respectively supplied to the two power supply interfaces of the double-layer USB interface, namely the Ethernet submodule controls the working states of the two USB interfaces in the double-layer USB interface through the Ethernet stabilized voltage power supply module; the USB _ HOST _ DP end and the USB _ HOST _ DN end of the Ethernet sub-module are connected with a first USB interface of the gateway radio frequency unit; the USBDN _ DP3_ B end and the USBDN _ DM3_ B end of the Ethernet sub-module are in communication connection with the WIFI module; the 4G _ USBDP end and the 4G _ USBDM end of the Ethernet sub-module are in communication connection with the third Mini-PCIE slot module, namely the Ethernet sub-module is used for converting 1 USB interface of the main control core board into 4 USB interfaces; the EEDO end, the EECS end and the EECLK end of the Ethernet sub-module are connected with the storage module; the RXP0 end, the RXN0 end, the TXP0 end and the TXN0 end of the Ethernet sub-module are connected with an Ethernet interface;

as shown in fig. 14, the interface of the ethernet interface adopts an interface of HR91105A, and its peripheral interface includes: a GEN _3V3 end, a GND end, an RXP0 end, an RXN0 end, a TXP0 end and a TXN0 end, wherein a GEN _3V3 end is electrically connected with a GEN _3V3 end of a 3.3V voltage stabilizing module, a GND end is electrically connected with a GND end of the 3.3V voltage stabilizing module, and an RXP0 end, an RXN0 end, a TXP0 end and a TXN0 end are connected with an ethernet module for data interaction, so that a USB interface of the master control core board is converted into 4 USB interfaces and 1 ethernet interface;

as shown in fig. 15, the memory chip of the memory module uses 93LC66A for storing data of the ethernet sub-module, and its external interface includes: an EEDO terminal, an EECS terminal, an EECLK terminal, a GEN _3V3 terminal and a GND terminal; the EEDO end, the EECS end and the EECLK end of the Ethernet sub-module are connected, the GEN _3V3 end of the Ethernet sub-module is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end of the Ethernet sub-module is electrically connected with the GND end of the 3.3V voltage stabilizing module;

as shown in fig. 16, the RTC module includes: the core chip ISL1208 clock chip and the battery, its external interface includes: and the GEN _3V3 end and the GND end, the GEN _3V3 end of the GEN _3V voltage stabilizing module is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end of the GEN _3V voltage stabilizing module is electrically connected with the GND end of the 3.3V voltage stabilizing module.

The RTC module adopts ISL1208 clock chip to realize automatic time updating, and transmits time data to the main control core board through IIC bus, and the RTC module is provided with a battery, and can realize the continuous time updating of power down.

As shown in fig. 17, the core chip of the RS232 communication module adopts an RS232 communication chip SP3232EEY, and its peripheral interface includes: a GEN _3V3 terminal and a GND terminal; the GEN _3V3 end is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end is electrically connected with the GND end of the 3.3V voltage stabilizing module.

The RS232 communication module is used for updating software of the main control core board, and an external module can be accessed into the RS232 debugging interface to realize data interaction with the main control core board.

As shown in fig. 18, the core chip of the GPS module adopts a GPS module with a model number ATGM336H, and its peripheral interface includes: the GEN _3V3 end, the GND end, the UART4_ RXD end and the UART4_ TXD end, the GEN _3V3 end is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, the GND end is electrically connected with the GND end of the 3.3V voltage stabilizing module, and the UART4_ RXD end and the UART _ TXD end of the GPS module are in communication connection with a fourth UART serial port of the gateway radio frequency unit.

The GPS module has clock calibration and positioning functions, a GPS _ PPS pin of the GPS module is respectively connected with the first SX1301 module and the second SX1301 module to provide accurate pulse per second for the first SX1301 module and the second SX1301 module for clock calibration of the first SX1301 module and the second SX1301 module, and the GPS module sends positioning data and time service to the master control core board through a UART serial port.

The third Mini-PCIE slot module includes: a third Mini-PCIE slot, a peripheral circuit of the third Mini-PCIE slot and a 4G power module; as shown in fig. 19 to 21, the peripheral circuits of the third Mini-PCIE slot and the third Mini-PCIE slot include a portion a, a portion B, and a portion C, the 4G module is a 4G module of EC20 model, the 4G module is inserted into the third Mini-PCIE slot, the third Mini-PCIE slot is communicatively connected to the peripheral circuit of the third Mini-PCIE slot, the peripheral interface of the peripheral circuit of the third Mini-PCIE slot is connected to the third Mini-PCIE slot module interface of the gateway radio frequency unit, the 3.3V voltage stabilizing module is electrically connected to the peripheral circuit of the third Mini-PCIE slot and the 4G power module, the 4G power module is electrically connected to the peripheral circuit of the third Mini-PCIE slot, fig. 22 is a circuit diagram of the 4G power module, pins of the 4G module are all led out through the third Mini-PCIE slot, so as to achieve convenient detachment of the 4G module, the 4G power supply module provides 1.5V working voltage for the 4G module.

As shown in fig. 23, the bluetooth module is a bluetooth module with a model number of RF-BM-SO2, and its peripheral interface includes: the device comprises a GEN _3V3 end and a GND end, wherein the GEN _3V3 end is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, the GND end is electrically connected with the GND end of the 3.3V voltage stabilizing module, and the Bluetooth module is used for communicating with external equipment and configuring an IP address, an uplink channel, a downlink channel and a gateway address of the server.

As shown in fig. 24, the WIFI module is a WIFI module with a model number of RL-UM12BS-8188EUS, and is configured to communicate with a device accessing WIFI and provide a network hotspot, and its peripheral interface includes: a GEN _3V3 terminal, a GND terminal, a USBDN _ DP3_ B terminal and a USBDN _ DM3_ B terminal, where the GEN _3V3 terminal is electrically connected to the GEN _3V3 terminal of the 3.3V voltage stabilizing module, the GND terminal is electrically connected to the GND terminal of the 3.3V voltage stabilizing module, and the USBDN _ DP3_ B terminal and the USBDN _ DM3_ B terminal are connected to the ethernet sub-module, as shown in fig. 25, a core chip of the 485 communication module adopts a communication chip of SP3495EEN-L, which is communicatively connected to the main control core board through a UART serial port, and as shown in fig. 26, a peripheral interface of the CAN bus module includes: the 5VIN end, GEN _3V3 end and GND end, its GEN _3V3 end is connected with GEN _3V3 end electric connection of 3.3V voltage regulator module, its GND end is connected with 3.3V voltage regulator module's GND end electric connection, its 5VIN end is connected with circuit control module's 5VIN end electric connection, convert the fifth UART serial ports into CAN bus interface, and realize 5V to 3.3V's level conversion on the CAN bus, 485 communication module and CAN bus module are connected with external equipment, realize that external equipment and main control core board communicate, realize the industry linkage.

Table 1 communication interface connection table for each module and gateway radio frequency unit

Claims

1. A novel sensor network concentrator based on LPWAN is characterized by comprising a shell, a main control core board and a main board; a main control core board and a main board are fixedly arranged in the shell; the main control core board is fixed on the mainboard, the mainboard is fixed with: the system comprises an SD card, an SD card slot, an Ethernet module, an OTG module, a power supply module, an RTC module, an RS232 communication module, a GPS module, a 4G module, an SIM card, a Bluetooth module, a WIFI module, a 485 communication module, a CAN bus module, a first SX1301 module, a second SX1301 module, a gateway radio frequency unit, a first Mini-PCIE slot, a second Mini-PCIE slot and a third Mini-PCIE slot module;

the power supply module comprises a power plug;

the OTG module comprises an OTG plug;

the RS232 communication module comprises an RS232 debugging interface;

the 485 communication module comprises a 485 communication interface;

the CAN bus module comprises a CAN bus interface;

the WIFI module is in communication connection with the Ethernet module;

2. The LPWAN-based novel sensor network concentrator according to claim 1, wherein the power supply module comprises a power supply short circuit prevention module, a 3.3V voltage stabilization module and a power supply control module;

3. The LPWAN-based novel sensor network concentrator according to claim 2, wherein the main control core board is an IMX6 model main control core board, the IMX6 model main control core board is a cortex a9 core processor, the gateway rf unit is in communication connection with the main control core board, all peripheral pins of the main control core board are led out for connection with an external module, and the interface of the gateway rf unit includes: the USB interface module comprises a first USB interface, a second USB interface, a first IIC interface, a first UART serial port, a second UART serial port, a third UART serial port, a fourth UART serial port, a fifth UART serial port, a first Mini-PCIE slot interface, a second Mini-PCIE slot interface, a third Mini-PCIE slot module interface, a GPIO interface, a 5V _ core end, a 3P3V end and a GND end; the 5V _ core end is electrically connected with the 5V _ core end of the power supply short-circuit prevention module, the 3P3V end is electrically connected with the 3P3V end of the 3.3V voltage stabilization module, and the GND end is connected with the GND end of the 3.3V voltage stabilization module.

4. The LPWAN-based novel sensor network concentrator of claim 2, wherein the ethernet module comprises: the Ethernet voltage-stabilizing power supply comprises an Ethernet submodule, an Ethernet voltage-stabilizing power supply module, an Ethernet interface and a storage module;

the 3.3V voltage stabilizing module is electrically connected with the Ethernet sub-module, the Ethernet interface and the storage module respectively;

the Ethernet voltage-stabilized power supply module is electrically connected with the power supply control module;

the Ethernet sub-module comprises a double-layer USB interface, and is respectively in communication connection with the Ethernet stabilized voltage supply module, the Ethernet interface and the storage module; and the Ethernet voltage-stabilized power supply module is electrically connected with the double-layer USB interface.

5. The LPWAN-based novel sensor network concentrator of claim 2, wherein the RTC module comprises: the core chip ISL1208 clock chip and the battery, its external interface includes: and the GEN _3V3 end and the GND end, the GEN _3V3 end of the GEN _3V voltage stabilizing module is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end of the GEN _3V voltage stabilizing module is electrically connected with the GND end of the 3.3V voltage stabilizing module.

6. The LPWAN-based novel sensor network concentrator according to claim 3, wherein a core chip of the RS232 communication module adopts an RS232 communication chip SP3232EEY, and a peripheral interface of the RS232 communication chip comprises: a GEN _3V3 terminal and a GND terminal; the GEN _3V3 end is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end is electrically connected with the GND end of the 3.3V voltage stabilizing module.

7. The LPWAN-based novel sensor network concentrator as claimed in claim 3, wherein the core chip of the GPS module adopts a GPS module with model number ATGM336H, and its peripheral interface includes: and the GEN _3V3 end and the GND end, the GEN _3V3 end of the GEN _3V voltage stabilizing module is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end of the GEN _3V voltage stabilizing module is electrically connected with the GND end of the 3.3V voltage stabilizing module.

8. The LPWAN-based novel sensor network concentrator of claim 2, wherein the third Mini-PCIE slot module comprises: a third Mini-PCIE slot, a peripheral circuit of the third Mini-PCIE slot and a 4G power module; the 4G module is inserted into a third Mini-PCIE slot, the third Mini-PCIE slot is in communication connection with a peripheral circuit of the third Mini-PCIE slot, a peripheral interface of the peripheral circuit of the third Mini-PCIE slot is connected with a third Mini-PCIE slot module interface of the gateway radio frequency unit, and the 3.3V voltage stabilizing module is electrically connected with the peripheral circuit of the third Mini-PCIE slot and the 4G power module respectively.

9. The LPWAN-based novel sensor network concentrator according to claim 1, wherein the bluetooth module is a bluetooth module of type RF-BM-SO2, and the peripheral interface comprises: and the GEN _3V3 end and the GND end, the GEN _3V3 end of the GEN _3V voltage stabilizing module is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end of the GEN _3V voltage stabilizing module is electrically connected with the GND end of the 3.3V voltage stabilizing module.

10. The LPWAN-based novel sensor network concentrator as claimed in claim 3, wherein the WIFI module is a WIFI module with model number RL-UM12BS-8188EUS, and its peripheral interface includes: the GEN _3V3 end and the GND end, the GEN _3V3 end is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, and the GND end is electrically connected with the GND end of the 3.3V voltage stabilizing module; the core chip of the 485 communication module adopts an SP3495EEN-L communication chip which is in communication connection with the main control core board through a UART interface, and the peripheral interface of the CAN bus module comprises: the voltage stabilizing circuit comprises a 5VIN end, a GEN _3V3 end and a GND end, wherein the GEN _3V3 end is electrically connected with the GEN _3V3 end of the 3.3V voltage stabilizing module, the GND end is electrically connected with the GND end of the 3.3V voltage stabilizing module, and the 5VIN end is electrically connected with the 5VIN end of the circuit control module.