CN107968746B - Multilink internet of things gateway and working method thereof - Google Patents
Multilink internet of things gateway and working method thereof Download PDFInfo
- Publication number
- CN107968746B CN107968746B CN201711470051.0A CN201711470051A CN107968746B CN 107968746 B CN107968746 B CN 107968746B CN 201711470051 A CN201711470051 A CN 201711470051A CN 107968746 B CN107968746 B CN 107968746B
- Authority
- CN
- China
- Prior art keywords
- sub
- pin
- communication
- capacitor
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a multi-link Internet of things gateway, which is integrated in the same gateway and comprises a communication unit, a data acquisition unit, a power management unit and an MCU main control unit, wherein the communication unit comprises an NB-IoT communication module and a Sub-1G communication module, and the MCU main control unit is respectively communicated with the NB-IoT communication module and the Sub-1G communication module of the communication unit through corresponding protocol channels; a working method of a multilink internet of things gateway comprises the following steps: setting 2 working modes, namely an automatic working method A working mode in a normal state, and entering a manual working method M working mode when a nearby person needs to actively connect a gateway for data communication. The beneficial effects are that: the data acquisition function and the data communication function are integrated, when the NB-IoT network cannot be accessed, the Sub-1G communication module can be selected to access an area network established by a plurality of gateways within a certain distance, and data is forwarded to other gateways which can be accessed to the NB-IoT network for data transfer, so that the application scene of the gateway is more, including a field environment with unsmooth operator signals.
Description
Technical Field
The invention relates to the technical field of gateways of the Internet of things, in particular to a multi-link gateway of the Internet of things and a working method thereof.
Background
The internet of things is an emerging technical field, and aims to connect sensors and equipment into the internet so as to realize information exchange between people and objects and between objects.
In the prior art, the detector nodes are independently arranged with the gateway and are communicated by the line connection, the scattered distribution can affect the use and maintenance inconvenience, the power consumption can be increased, and particularly for field detection points, the power is difficult to provide at any time, so that the consumption of equipment of each detection point is reduced as much as possible.
Meanwhile, in a field environment, the distribution of signals can not reach the full coverage of each point, so that the real-time acquisition and the uploading of data can not be completed in some places without network signals, but the places are often the most needed to be detected and mastered, and the detection of forest fires and the like is inevitably unsatisfactory due to the lack of real-time data of the areas.
Disadvantages of the prior art: the detector and the gateway are arranged separately, so that the power consumption is high; sites without signal distribution cannot transmit data in real time.
Disclosure of Invention
The invention aims to provide a multilink internet of things gateway and a working method thereof, which integrate data acquisition and gateway functions, work for periodic dormancy to reduce power consumption, and enable the gateway to transfer data to other gateways which can access a network within a certain distance for transmission at places which are difficult to access the network.
In order to achieve the above purpose, the invention adopts the following specific technical scheme:
the multi-link Internet of things gateway is integrated in the same gateway and comprises a communication unit, a data acquisition unit, a power management unit and an MCU main control unit;
the communication unit is used for establishing a signal network and transmitting data, and comprises an NB-IoT communication module and a Sub-1G communication module, wherein the NB-IoT is a cellular-based narrowband internet of things, and the Sub-1G is a wireless communication signal with the frequency lower than 1 GHz;
the data acquisition unit is used for detecting and acquiring scene data and transmitting the data to the MCU main control unit for communication;
the power management unit provides electric energy for the gateway;
the MCU main control unit is responsible for data processing and network access transmission of the multi-link Internet of things gateway, controls switching of different access network modes, and dynamically plans a working period and controls power consumption according to electric energy output power;
the MCU main control unit is respectively communicated with the NB-IoT communication module and the Sub-1G communication module of the communication unit through corresponding protocol channels, and is respectively connected with the data acquisition unit and the power management in a bidirectional manner.
Through the design, the gateway integrates the data acquisition function and the data communication function, the MCU main control unit can select the NB-IoT communication module to access the NB-IoT network for data transmission, and can select the Sub-1G communication module to access the regional network established by a plurality of gateways within a certain distance when the NB-IoT network cannot be accessed, and forward the data to other places to be accessed to the gateways of the NB-IoT network for data forwarding, so that the application scene of the gateway is more, including the field environment with unsmooth operator signals.
Further described, the power management unit is a solar power management unit;
the solar power management unit is used for converting solar power supply, dynamically adjusting parameters and distributing energy according to solar output power.
Through the design, solar energy in the field environment can be collected by the solar energy power management unit and converted into power supply, so that the requirement of the gateway on charging is further reduced.
Further described, the communication unit further comprises a bluetooth communication module;
the Bluetooth communication module performs Bluetooth communication with the MCU main control unit through a Bluetooth communication protocol channel.
Through the design, the MCU can also carry out data transmission through the Bluetooth communication module, so that any equipment capable of receiving and transmitting Bluetooth signals can communicate with the gateway.
Further described, the component network of NB-IoT is a network channel provided by a telecom operator, and the component network of Sub-1G is a signal channel built by at least 2 multi-link Internet of things gateways in the range of 1-3 km.
Further described, the Sub-1G is a data communication signal having a frequency of 430 MHz.
Further describing, the Sub-1G communication module comprises a Sub-1G wireless data chip, a switch conversion chip U2 and an antenna;
the serial output pin SDO of the Sub-1G wireless data chip is connected with the Sub-input pin B9/2.7 of the MCU, the serial input pin SDI of the Sub-1G wireless data chip is connected with the Sub-output pin B7/2.4 of the MCU, the serial clock pin SCLK of the Sub-1G wireless data chip is connected with the clock pin B8/2.6 of the MCU, the first power supply pin VDD-dig of the Sub-1G wireless data chip is connected with the power supply VCC, the second grounding pin NC2 of the Sub-1G wireless data chip is grounded, and a first capacitor C1 is connected between the power supply pin VDD of the Sub-1G wireless data chip and the second grounding pin NC 2;
the chip selection pin nSEL of the Sub-1G wireless data chip is connected with the chip selection Sub pin B6/2.5 of the MCU, the interruption pin nIRQ of the Sub-1G wireless data chip is connected with the Sub interruption pin B5/2.2 of the MCU, the interruption pin nIRQ is also connected with a power supply VCC after being connected with a first resistor R1 in series, a first crystal oscillator Y1 is connected between the frequency output pin XOUT and the frequency input pin XIN of the Sub-1G wireless data chip, the reset pin SDN of the Sub-1G wireless data chip is connected with the Sub reset pin D7/2.3 of the MCU, the reset pin SDN is also connected with a second resistor R2 in series and then grounded, the grounding end of the second resistor R2 is connected with a seventh capacitor C7 in series and then connected with a power supply VCC, and two ends of the seventh capacitor C7 are also connected with an eighth capacitor C8, a ninth capacitor C9 and a tenth capacitor C10 in parallel respectively;
the second power supply pin VDD-RF of the Sub-1G wireless data chip is connected with a power supply VCC, the signal output pin TX of the Sub-1G wireless data chip is connected with a power supply VCC after being connected with a third inductor L3 in series, the signal output pin TX is also connected with an eleventh capacitor C11, a fifth inductor L5, a sixth inductor L6 and an fourteenth capacitor C14 in series and then is connected with the input pin OUT2 of a switch conversion chip U2 in sequence, the common end of the fifth inductor L5 and the sixth inductor L6 is connected with the thirteenth capacitor C13 in series and then is grounded, the positive differential signal pin RX-p of the Sub-1G wireless data chip is connected with the output pin OUT1 of the switch conversion chip U2 after being connected with the fifth capacitor C5 in series, the negative differential signal pin RX-n of the Sub-1G wireless data chip is connected with the positive differential signal pin RX-p after being connected with the first inductor L1 in series, and the negative differential signal pin RX-n is also connected with the fourth capacitor C4 in series and then is grounded, and the first grounding pin NC1 of the Sub-1G wireless data chip is grounded;
the voltage regulating output pin VR-dig of the Sub-1G wireless data chip is connected in series with a second capacitor C2 and then grounded, and the two ends of the second capacitor C2 are connected in parallel with a third capacitor C3;
the grounding pin GND of the switch conversion chip U2 is grounded, the signal pin RF-in of the switch conversion chip U2 is sequentially connected with the sixth capacitor C6 and the second inductor L2 in series and then connected with the antenna, the common end of the sixth capacitor C6 and the common end of the second inductor L2 are connected with the fifteenth capacitor C15 in series and then grounded, and the common end of the second inductor L2 and the common end of the antenna are connected with the sixteenth capacitor C16 in series and then grounded.
Through the design, the Sub-1G wireless data chip performs data transmission with the MCU through the serial output pin SDO and the serial input pin SDI, the Sub-1G wireless data chip converts data into Sub-1G signals and then sends the Sub-1G signals to the antenna through the signal output pin TX, a low-pass filter is formed by the fifth inductor L5, the sixth inductor L6 and the thirteenth capacitor C13 between the Sub-1G wireless data chip and the antenna, high-frequency signals are filtered, another low-pass filter is formed by the second inductor L2, the fifteenth capacitor C15 and the sixteenth capacitor C16, and the switching conversion chip U2 can control whether the transmission of the Sub-1G signals is performed or not.
Further described, the common terminal of the eleventh capacitor C11 and the fifth inductor L5 is further connected with an electromagnetic signal filtering circuit;
the electromagnetic signal filter circuit is arranged to be a fourth inductor L4 and a twelfth capacitor C12 which are connected in parallel, one end of the common end of the parallel connection is connected with the eleventh capacitor, and the other end of the common end of the parallel connection is connected with a third resistor R3 in series and then grounded.
Through the design, the electromagnetic signal filtering circuit filters the disordered electromagnetic signals in the area, so that the transmission of Sub-1G signals is not affected.
The working method of the multi-link Internet of things gateway comprises an automatic working method A and a manual working method M;
the automatic working method A comprises the following steps:
a1, the MCU master control unit automatically wakes up and controls the power supply management unit to increase the power supply output power;
a2, the MCU main control unit controls the data acquisition unit to work and transmits the acquired data to the MCU main control unit;
a3, the MCU master control unit judges whether NB-IoT signals in the current range meet data transmission conditions, if so, the step A4 is carried out, and if not, the step A5 is carried out;
the data transmission condition is whether the NB-IoT network can be accessed for data transmission;
a4, the MCU main control unit uploads the data signal to a remote networking platform through an NB-IoT protocol channel, and the step A6 is skipped after the data signal is completed;
a5, the MCU main control unit transmits the data signal to another multilink internet of things gateway which can be accessed to NB-IoT for transmission through a Sub-1G protocol channel, and the multilink internet of things gateway uploads the data;
a6, the MCU main control unit reads the residual electric quantity of the power management unit and calculates the working time of the gateway and the period time T to be dormant in the state of the residual electric quantity;
a7, the MCU master control unit controls the gateway to enter a dormant state to wait for awakening, and starts timing;
a8, finishing timing after the timing reaches the sleep period time T, and returning to A1 to enter a new round of work.
Through the design, the gateway sets 2 working modes, namely the working mode under the automatic working method A in a normal state, when people in the vicinity need to actively connect the gateway for data communication, the gateway enters the working mode under the manual working method M, the automatic working method A is a low-power-consumption working mode of periodic dormancy and awakening, and because the data volume which is usually acquired and transmitted by the gateway of the Internet of things is not large, the periodic work is enough for normal data communication, the periodic dormancy and awakening greatly reduce the energy consumption of the gateway, and meanwhile, the Sub-1G network in an active selection area is enabled to forward and transmit data when the NB-IoT network cannot be accessed, so that the application range of the gateway is enlarged.
Further described, the manual working method M adopts the following steps:
m1, a terminal receiving data initiates a communication request to an MCU main control unit through an NB-IoT signal or a Sub-1G signal, wherein the content of the communication request comprises a communication mode of the multilink internet of things gateway and the terminal: communicate via NB-IoT, or via Sub-1G, or via bluetooth;
m2, the MCU master control unit wakes up after recognizing the communication request, and establishes a communication channel with the terminal;
and M3, the MCU main control unit transmits data to the terminal through the communication channel, and the MCU main control unit disconnects the channel and enters a dormant state after finishing the transmission.
Through the design, when people in the vicinity need to actively connect the gateway for data communication, the MCU is awakened by a communication request and performs data communication, meanwhile, due to the fact that the Bluetooth transmission distance is short and the power consumption is high, the Bluetooth communication module of the gateway is not opened in a normal state, and only when a large amount of data needs to be transmitted in a short distance or people actively initiate Bluetooth communication, the Bluetooth communication module can be passively awakened for data transmission, and the Bluetooth communication module enters a closed state after the transmission is completed.
Further describing, in step M1, the communication mode between the multi-link internet of things gateway and the terminal is default to long-distance transmission by the terminal to communication via NB-IoT, short-distance transmission to communication via bluetooth, and if neither NB-IoT nor bluetooth is available, the communication mode is selected to be Sub-1G communication.
The invention has the beneficial effects that: the gateway integrates a data acquisition function and a data communication function, the MCU main control unit can select the NB-IoT communication module to be accessed to the NB-IoT network for data transmission, and can also select the Sub-1G communication module to be accessed to an area network established by a plurality of gateways within a certain distance when the NB-IoT network cannot be accessed, and forward the data to other places to be accessed to the gateways of the NB-IoT network for data forwarding, so that the application scene of the gateway is more, including a field environment with unsmooth operator signals;
the gateway sets 2 working modes, namely a working mode under an automatic working method A in a normal state, when a nearby person needs to actively connect the gateway for data communication, the gateway enters the working mode under a manual working method M, the automatic working method A is a low-power-consumption working mode of periodic dormancy and awakening, and the periodic dormancy and the awakening greatly reduce the energy consumption of the gateway because the data quantity which is usually acquired and transmitted by the gateway of the Internet of things is not large, so that the gateway periodically works for normal data communication.
Drawings
FIG. 1 is a schematic view of an embodiment
FIG. 2 is a circuit configuration diagram of a Sub-1G communication module
FIG. 3 is a schematic diagram of a portion of a connection pin of an MCU and Sub-1G communication module
Detailed Description
The invention is described in further detail below with reference to the attached drawings and specific examples:
as shown in fig. 1, a multi-link internet of things gateway is integrated in the same gateway, and comprises a communication unit, a data acquisition unit, a power management unit and an MCU main control unit;
the communication unit is used for establishing a signal network and transmitting data, and comprises an NB-IoT communication module, a Sub-1G communication module and a Bluetooth communication module, wherein the NB-IoT is a narrowband internet of things based on a honeycomb, and the Sub-1G is a wireless communication signal with the frequency lower than 1 GHz;
the data acquisition unit is used for detecting and acquiring scene data and transmitting the data to the MCU main control unit for communication;
the power management unit provides electric energy for the gateway;
the MCU main control unit is responsible for data processing and network access transmission of the multi-link Internet of things gateway, controls switching of different access network modes, and dynamically plans a working period and controls power consumption according to electric energy output power;
the MCU main control unit is respectively communicated with the NB-IoT communication module and the Sub-1G communication module of the communication unit through corresponding protocol channels, the Bluetooth communication module is in Bluetooth communication with the MCU main control unit through Bluetooth communication protocol channels, and the MCU main control unit is respectively connected with the data acquisition unit and the power management in a bidirectional manner.
Preferably, the power management unit in this embodiment is a solar power management unit;
the solar power management unit is used for converting solar power supply, dynamically adjusting parameters and distributing energy according to solar output power.
Preferably, the component network of NB-IoT is a network channel provided by a telecom operator, and the component network of Sub-1G is a signal channel built by at least 2 multi-link internet of things gateways in the range of 1-3 km.
Preferably, the Sub-1G is a data communication signal with a frequency of 430 MHz.
As shown in fig. 2 and 3, the Sub-1G communication module includes a Sub-1G wireless data chip, a switch conversion chip U2, and an antenna;
the serial output pin SDO of the Sub-1G wireless data chip is connected with the Sub-input pin B9/2.7 of the MCU, the serial input pin SDI of the Sub-1G wireless data chip is connected with the Sub-output pin B7/2.4 of the MCU, the serial clock pin SCLK of the Sub-1G wireless data chip is connected with the clock pin B8/2.6 of the MCU, the first power supply pin VDD-dig of the Sub-1G wireless data chip is connected with the power supply VCC, the second grounding pin NC2 of the Sub-1G wireless data chip is grounded, and a first capacitor C1 is connected between the power supply pin VDD of the Sub-1G wireless data chip and the second grounding pin NC 2;
the chip selection pin nSEL of the Sub-1G wireless data chip is connected with the chip selection Sub pin B6/2.5 of the MCU, the interruption pin nIRQ of the Sub-1G wireless data chip is connected with the Sub interruption pin B5/2.2 of the MCU, the interruption pin nIRQ is also connected with a power supply VCC after being connected with a first resistor R1 in series, a first crystal oscillator Y1 is connected between the frequency output pin XOUT and the frequency input pin XIN of the Sub-1G wireless data chip, the reset pin SDN of the Sub-1G wireless data chip is connected with the Sub reset pin D7/2.3 of the MCU, the reset pin SDN is also connected with a second resistor R2 in series and then grounded, the grounding end of the second resistor R2 is connected with a seventh capacitor C7 in series and then connected with a power supply VCC, and two ends of the seventh capacitor C7 are also connected with an eighth capacitor C8, a ninth capacitor C9 and a tenth capacitor C10 in parallel respectively;
the second power supply pin VDD-RF of the Sub-1G wireless data chip is connected with a power supply VCC, the signal output pin TX of the Sub-1G wireless data chip is connected with a power supply VCC after being connected with a third inductor L3 in series, the signal output pin TX is also connected with an eleventh capacitor C11, a fifth inductor L5, a sixth inductor L6 and an fourteenth capacitor C14 in series and then is connected with the input pin OUT2 of a switch conversion chip U2 in sequence, the common end of the fifth inductor L5 and the sixth inductor L6 is connected with the thirteenth capacitor C13 in series and then is grounded, the positive differential signal pin RX-p of the Sub-1G wireless data chip is connected with the output pin OUT1 of the switch conversion chip U2 after being connected with the fifth capacitor C5 in series, the negative differential signal pin RX-n of the Sub-1G wireless data chip is connected with the positive differential signal pin RX-p after being connected with the first inductor L1 in series, and the negative differential signal pin RX-n is also connected with the fourth capacitor C4 in series and then is grounded, and the first grounding pin NC1 of the Sub-1G wireless data chip is grounded;
the voltage regulating output pin VR-dig of the Sub-1G wireless data chip is connected in series with a second capacitor C2 and then grounded, and the two ends of the second capacitor C2 are connected in parallel with a third capacitor C3;
the grounding pin GND of the switch conversion chip U2 is grounded, the signal pin RF-in of the switch conversion chip U2 is sequentially connected with the sixth capacitor C6 and the second inductor L2 in series and then connected with the antenna, the common end of the sixth capacitor C6 and the common end of the second inductor L2 are connected with the fifteenth capacitor C15 in series and then grounded, and the common end of the second inductor L2 and the common end of the antenna are connected with the sixteenth capacitor C16 in series and then grounded.
The common end of the eleventh capacitor C11 and the fifth inductor L5 is also connected with an electromagnetic signal filter circuit;
the electromagnetic signal filter circuit is arranged to be a fourth inductor L4 and a twelfth capacitor C12 which are connected in parallel, one end of the common end of the parallel connection is connected with the eleventh capacitor, and the other end of the common end of the parallel connection is connected with a third resistor R3 in series and then grounded.
Preferably, in this embodiment, 2 antennas ANTE1 and Antenna are connected, one of which is used as an Antenna for testing, and the other is an operating Antenna in normal operation.
In this embodiment, the Sub-1G wireless data chip is preferably SI4432-B1-FMR, the MCU is preferably STM32/MSP430, the first capacitor C1 and the ninth capacitor C9 are preferably 100nF, the second capacitor C2 is preferably 1 μf, the third capacitor C3 and the eighth capacitor C8 are preferably 100pF, the fourth capacitor is preferably 4.7pF, the fifth capacitor C5 and the twelfth capacitor C12 are preferably 12pF, the sixth capacitor C6 and the fourteenth capacitor C14 are preferably 220pF, the seventh capacitor is preferably 33pF, the tenth capacitor C10 is preferably 2.2 μf, the eleventh capacitor C11 is preferably 120pF, the thirteenth capacitor C13 is preferably a capacitor with a capacitance value of 6.8pF, the fifteenth capacitor C15 and the sixteenth capacitor C16 are preferably capacitors with a capacitance value of 8.2pF, the first resistor R1 and the second resistor R2 are preferably resistors with a resistance value of 100kΩ, the third resistor R3 is preferably a resistor with a resistance value of 51R, the first inductor L1 is preferably an inductor with a inductance value of 27nH, the second inductor L2 is preferably an inductor with a inductance value of 18nH, the third inductor L3 is preferably an inductor with a inductance value of 270nH, the fourth inductor L4 is preferably an inductor with a inductance value of 12nH, the fifth inductor L5 and the sixth inductor L6 are preferably an inductor with a inductance value of 24nH, the first crystal oscillator Y1 is preferably model number NX3225SA, and the switching chip U2 is preferably model number UPG2214.
The working method of the multilink internet of things gateway comprises an automatic working method A and a manual working method M;
the automatic working method A comprises the following steps:
a1, the MCU master control unit automatically wakes up and controls the power supply management unit to increase the power supply output power;
a2, the MCU main control unit controls the data acquisition unit to work and transmits the acquired data to the MCU main control unit;
a3, the MCU master control unit judges whether NB-IoT signals in the current range meet data transmission conditions, if so, the step A4 is carried out, and if not, the step A5 is carried out;
a4, the MCU main control unit uploads the data signal to a remote networking platform through an NB-IoT protocol channel, and the step A6 is skipped after the data signal is completed;
a5, the MCU main control unit transmits the data signal to another multilink internet of things gateway which can be accessed to NB-IoT for transmission through a Sub-1G protocol channel, and the multilink internet of things gateway uploads the data;
a6, the MCU main control unit reads the residual electric quantity of the power management unit and calculates the working time of the gateway and the period time T to be dormant in the state of the residual electric quantity;
a7, the MCU master control unit controls the gateway to enter a dormant state to wait for awakening, and starts timing;
a8, finishing timing after the timing reaches the sleep period time T, and returning to A1 to enter a new round of work.
The manual working method M comprises the following steps:
m1, a terminal receiving data initiates a communication request to an MCU main control unit through an NB-IoT signal or a Sub-1G signal, wherein the content of the communication request comprises a communication mode of the multilink internet of things gateway and the terminal: communicate via NB-IoT, or via Sub-1G, or via bluetooth;
m2, the MCU master control unit wakes up after recognizing the communication request, and establishes a communication channel with the terminal;
and M3, the MCU main control unit transmits data to the terminal through the communication channel, and the MCU main control unit disconnects the channel and enters a dormant state after finishing the transmission.
Claims (2)
1. The working method of the multilink internet of things gateway is characterized by comprising the following steps of:
firstly, constructing a multi-link Internet of things gateway, wherein a communication unit, a data acquisition unit, a power management unit and an MCU main control unit are integrated in the same gateway;
the communication unit is used for establishing a signal network and transmitting data, and comprises an NB-IoT communication module and a Sub-1G communication module, wherein the NB-IoT is a cellular-based narrowband internet of things, and the Sub-1G is a wireless communication signal with the frequency lower than 1 GHz;
the data acquisition unit is used for detecting and acquiring scene data and transmitting the data to the MCU main control unit for communication;
the power management unit provides electric energy for the gateway;
the MCU main control unit is responsible for data processing and network access transmission of the multi-link Internet of things gateway, controls switching of different access network modes, and dynamically plans a working period and controls power consumption according to electric energy output power;
the MCU main control unit is respectively communicated with the NB-IoT communication module and the Sub-1G communication module of the communication unit through corresponding protocol channels, and is respectively connected with the data acquisition unit and the power management in a bidirectional manner;
the power management unit is a solar power management unit;
the solar power supply management unit is used for converting solar power supply, dynamically adjusting parameters and distributing energy according to solar output power;
the communication unit also comprises a Bluetooth communication module;
the Bluetooth communication module performs Bluetooth communication with the MCU main control unit through a Bluetooth communication protocol channel;
the component network of NB-IoT is a network channel provided by a telecom operator, and the component network of Sub-1G is a signal channel built by at least 2 multilink internet of things gateways within the range of 1-3 km;
the Sub-1G is a data communication signal with the frequency of 430 MHz;
the Sub-1G communication module comprises a Sub-1G wireless data chip, a switch conversion chip U2 and an antenna;
the serial output pin SDO of the Sub-1G wireless data chip is connected with the Sub-input pin B9/2.7 of the MCU, the serial input pin SDI of the Sub-1G wireless data chip is connected with the Sub-output pin B7/2.4 of the MCU, the serial clock pin SCLK of the Sub-1G wireless data chip is connected with the clock pin B8/2.6 of the MCU, the first power supply pin VDD-dig of the Sub-1G wireless data chip is connected with the power supply VCC, the second grounding pin NC2 of the Sub-1G wireless data chip is grounded, and a first capacitor C1 is connected between the power supply pin VDD of the Sub-1G wireless data chip and the second grounding pin NC 2;
the chip selection pin nSEL of the Sub-1G wireless data chip is connected with the chip selection Sub pin B6/2.5 of the MCU, the interruption pin nIRQ of the Sub-1G wireless data chip is connected with the Sub interruption pin B5/2.2 of the MCU, the interruption pin nIRQ is also connected with a power supply VCC after being connected with a first resistor R1 in series, a first crystal oscillator Y1 is connected between the frequency output pin XOUT and the frequency input pin XIN of the Sub-1G wireless data chip, the reset pin SDN of the Sub-1G wireless data chip is connected with the Sub reset pin D7/2.3 of the MCU, the reset pin SDN is also connected with a second resistor R2 in series and then grounded, the grounding end of the second resistor R2 is connected with a seventh capacitor C7 in series and then connected with a power supply VCC, and two ends of the seventh capacitor C7 are also connected with an eighth capacitor C8, a ninth capacitor C9 and a tenth capacitor C10 in parallel respectively;
the second power supply pin VDD-RF of the Sub-1G wireless data chip is connected with a power supply VCC, the signal output pin TX of the Sub-1G wireless data chip is connected with a power supply VCC after being connected with a third inductor L3 in series, the signal output pin TX is also connected with an eleventh capacitor C11, a fifth inductor L5, a sixth inductor L6 and an fourteenth capacitor C14 in series and then is connected with the input pin OUT2 of a switch conversion chip U2 in sequence, the common end of the fifth inductor L5 and the sixth inductor L6 is connected with the thirteenth capacitor C13 in series and then is grounded, the positive differential signal pin RX-p of the Sub-1G wireless data chip is connected with the output pin OUT1 of the switch conversion chip U2 after being connected with the fifth capacitor C5 in series, the negative differential signal pin RX-n of the Sub-1G wireless data chip is connected with the positive differential signal pin RX-p after being connected with the first inductor L1 in series, and the negative differential signal pin RX-n is also connected with the fourth capacitor C4 in series and then is grounded, and the first grounding pin NC1 of the Sub-1G wireless data chip is grounded;
the voltage regulating output pin VR-dig of the Sub-1G wireless data chip is connected in series with a second capacitor C2 and then grounded, and the two ends of the second capacitor C2 are connected in parallel with a third capacitor C3;
the grounding pin GND of the switch conversion chip U2 is grounded, the signal pin RF-in of the switch conversion chip U2 is sequentially connected with the sixth capacitor C6 and the second inductor L2 in series and then connected with the antenna, the common end of the sixth capacitor C6 and the common end of the second inductor L2 are connected with the fifteenth capacitor C15 in series and then grounded, and the common end of the second inductor L2 and the common end of the antenna are connected with the sixteenth capacitor C16 in series and then grounded;
the common end of the eleventh capacitor C11 and the fifth inductor L5 is also connected with an electromagnetic signal filter circuit;
the electromagnetic signal filtering circuit is arranged to be a fourth inductor L4 and a twelfth capacitor C12 which are connected in parallel, one end of a common end of the parallel connection is connected with the eleventh capacitor, and the other end of the common end of the parallel connection is connected with a third resistor R3 in series and then grounded;
comprises an automatic working method A and a manual working method M;
the automatic working method A comprises the following steps:
a1, the MCU master control unit automatically wakes up and controls the power supply management unit to increase the power supply output power;
a2, the MCU main control unit controls the data acquisition unit to work and transmits the acquired data to the MCU main control unit;
a3, the MCU master control unit judges whether NB-IoT signals in the current range meet data transmission conditions, if so, the step A4 is carried out, and if not, the step A5 is carried out;
a4, the MCU main control unit uploads the data signal to a remote networking platform through an NB-IoT protocol channel, and the step A6 is skipped after the data signal is completed;
a5, the MCU main control unit transmits the data signal to another multilink internet of things gateway which can be accessed to NB-IoT for transmission through a Sub-1G protocol channel, and the multilink internet of things gateway uploads the data;
a6, the MCU main control unit reads the residual electric quantity of the power management unit and calculates the working time of the gateway and the period time T to be dormant in the state of the residual electric quantity;
a7, the MCU master control unit controls the gateway to enter a dormant state to wait for awakening, and starts timing;
a8, finishing timing after the timing reaches the sleep period time T, and returning to A1 to enter a new round of work;
the manual working method M comprises the following steps:
m1, a terminal receiving data initiates a communication request to an MCU main control unit through an NB-IoT signal or a Sub-1G signal, wherein the content of the communication request comprises a communication mode of the multilink internet of things gateway and the terminal: communicate via NB-IoT, or via Sub-1G, or via bluetooth;
m2, the MCU master control unit wakes up after recognizing the communication request, and establishes a communication channel with the terminal;
m3, the MCU main control unit transmits data to the terminal through the communication channel, and after the completion, the MCU main control unit disconnects the channel and enters a dormant state;
when someone in the vicinity needs to actively connect the gateway to perform data communication, the MCU is awakened by the communication request and performs data communication, meanwhile, due to the fact that the Bluetooth transmission distance is short and the power consumption is high, the Bluetooth communication module of the gateway is not opened in a normal state, and only when a large amount of data needs to be transmitted in a short distance or someone actively initiates Bluetooth communication, the Bluetooth communication module is passively awakened to perform data transmission, and after the transmission is completed, the Bluetooth communication module enters a closed state.
2. The method for operating a multi-link internet of things gateway according to claim 1, wherein: in step M1, the communication mode between the multi-link internet of things gateway and the terminal is default long-distance transmission by the terminal to be communication via NB-IoT, short-distance transmission is communication via bluetooth, and if NB-IoT and bluetooth are not available, the communication mode is selected to be Sub-1G communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711470051.0A CN107968746B (en) | 2017-12-29 | 2017-12-29 | Multilink internet of things gateway and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711470051.0A CN107968746B (en) | 2017-12-29 | 2017-12-29 | Multilink internet of things gateway and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107968746A CN107968746A (en) | 2018-04-27 |
| CN107968746B true CN107968746B (en) | 2023-10-17 |
Family
ID=61993812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711470051.0A Active CN107968746B (en) | 2017-12-29 | 2017-12-29 | Multilink internet of things gateway and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107968746B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495586B (en) * | 2018-12-21 | 2022-01-28 | 云南电网有限责任公司电力科学研究院 | Communication method, terminal and system of Internet of things heterogeneous wireless network |
| CN109936581A (en) * | 2019-04-18 | 2019-06-25 | 成都鑫芯电子科技有限公司 | A kind of gateway and control method based on agriculture Internet of Things |
| CN110207776A (en) * | 2019-06-28 | 2019-09-06 | 京源中科科技股份有限公司 | Water meter, its data uploading method and equipment based on NB-IoT |
| CN110505150A (en) * | 2019-09-04 | 2019-11-26 | 北京元安物联技术有限公司 | Internet of Things network control method, device, system, things-internet gateway and SDN controller |
| CN112040435A (en) * | 2020-09-09 | 2020-12-04 | 成都智联科鸿电子科技有限公司 | Thing networking data passback device that multichannel was binded |
| CN114449621B (en) * | 2020-10-30 | 2023-03-24 | 极米科技股份有限公司 | Method, device and storage medium for saving electric quantity consumption of multilink terminal |
| CN112787391A (en) * | 2021-01-25 | 2021-05-11 | 济南明湖建筑节能技术开发有限公司 | Solar energy power supply water affair gateway |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002028123A2 (en) * | 2000-09-29 | 2002-04-04 | Lifelink, Inc. | Wireless gateway capable of communicating according to a plurality of protocols |
| CN102123467A (en) * | 2011-03-02 | 2011-07-13 | 深圳市科陆电子科技股份有限公司 | Method for multi-channel self-adaptive switch during terminal communication |
| CN102523633A (en) * | 2011-12-16 | 2012-06-27 | 西安大唐电信有限公司 | Wireless sensor network gateway equipment and channel algorithm thereof |
| CN102883340A (en) * | 2012-09-29 | 2013-01-16 | 西北大学 | Remote transfer transmission system suitable for network-free areas and transmission method thereof |
| CN103149885A (en) * | 2011-12-06 | 2013-06-12 | 沈阳中科博微自动化技术有限公司 | Lower-power-dissipation industrial wireless network data transmission device and application method thereof |
| CN203276489U (en) * | 2013-06-01 | 2013-11-06 | 陈少锋 | Drowning alarm security management system |
| CN103905079A (en) * | 2014-04-04 | 2014-07-02 | 唐山紫光智能电子有限公司 | Ad-hoc network micropower wireless communication module |
| CN104901715A (en) * | 2015-06-26 | 2015-09-09 | 中国电子科技集团公司第三十八研究所 | Wireless transmit-receive equipment capable of switching from Bluetooth to ISM band |
| CN204836212U (en) * | 2015-08-14 | 2015-12-02 | 南京信息工程大学 | Gateway system is fused in many communications based on WSN meteorological observation |
| CN205317251U (en) * | 2016-01-18 | 2016-06-15 | 江苏信息职业技术学院 | Online environment monitoring device that can network |
| CN106209324A (en) * | 2016-09-18 | 2016-12-07 | 幻视互动（北京）科技有限公司 | The intelligent head based on multi-frequency radio networking module that FPGA realizes shows equipment |
| WO2017122062A1 (en) * | 2016-01-13 | 2017-07-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Adapting measurement procedure of nb-iot |
| CN107018610A (en) * | 2017-04-11 | 2017-08-04 | 卓祥明 | Single live wire intelligent switch |
| CN107063342A (en) * | 2017-03-21 | 2017-08-18 | 中科匠心智能科技（深圳）有限公司 | Temperature and Humidity wireless short-distance alarm method |
| CN107168273A (en) * | 2017-07-26 | 2017-09-15 | 安徽博微长安电子有限公司 | The control circuit of silo intelligent comprehensive display ＆ control system |
| CN206575445U (en) * | 2017-03-24 | 2017-10-20 | 深圳云智方科技有限公司 | Intelligent central control network is closed and intelligent domestic system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10057382B2 (en) * | 2015-09-24 | 2018-08-21 | Amrita Vishwa Vidyapeetham | Intelligent “IoT gateway” |
-
2017
- 2017-12-29 CN CN201711470051.0A patent/CN107968746B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002028123A2 (en) * | 2000-09-29 | 2002-04-04 | Lifelink, Inc. | Wireless gateway capable of communicating according to a plurality of protocols |
| CN102123467A (en) * | 2011-03-02 | 2011-07-13 | 深圳市科陆电子科技股份有限公司 | Method for multi-channel self-adaptive switch during terminal communication |
| CN103149885A (en) * | 2011-12-06 | 2013-06-12 | 沈阳中科博微自动化技术有限公司 | Lower-power-dissipation industrial wireless network data transmission device and application method thereof |
| CN102523633A (en) * | 2011-12-16 | 2012-06-27 | 西安大唐电信有限公司 | Wireless sensor network gateway equipment and channel algorithm thereof |
| CN102883340A (en) * | 2012-09-29 | 2013-01-16 | 西北大学 | Remote transfer transmission system suitable for network-free areas and transmission method thereof |
| CN203276489U (en) * | 2013-06-01 | 2013-11-06 | 陈少锋 | Drowning alarm security management system |
| CN103905079A (en) * | 2014-04-04 | 2014-07-02 | 唐山紫光智能电子有限公司 | Ad-hoc network micropower wireless communication module |
| CN104901715A (en) * | 2015-06-26 | 2015-09-09 | 中国电子科技集团公司第三十八研究所 | Wireless transmit-receive equipment capable of switching from Bluetooth to ISM band |
| CN204836212U (en) * | 2015-08-14 | 2015-12-02 | 南京信息工程大学 | Gateway system is fused in many communications based on WSN meteorological observation |
| WO2017122062A1 (en) * | 2016-01-13 | 2017-07-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Adapting measurement procedure of nb-iot |
| CN205317251U (en) * | 2016-01-18 | 2016-06-15 | 江苏信息职业技术学院 | Online environment monitoring device that can network |
| CN106209324A (en) * | 2016-09-18 | 2016-12-07 | 幻视互动（北京）科技有限公司 | The intelligent head based on multi-frequency radio networking module that FPGA realizes shows equipment |
| CN107063342A (en) * | 2017-03-21 | 2017-08-18 | 中科匠心智能科技（深圳）有限公司 | Temperature and Humidity wireless short-distance alarm method |
| CN206575445U (en) * | 2017-03-24 | 2017-10-20 | 深圳云智方科技有限公司 | Intelligent central control network is closed and intelligent domestic system |
| CN107018610A (en) * | 2017-04-11 | 2017-08-04 | 卓祥明 | Single live wire intelligent switch |
| CN107168273A (en) * | 2017-07-26 | 2017-09-15 | 安徽博微长安电子有限公司 | The control circuit of silo intelligent comprehensive display ＆ control system |
Non-Patent Citations (2)
| Title |
|---|
| 李振伟 ; 张星 ; 汪磊 ; 孙川 ; 付耀先 ; .一种基于ARM9的无线传感网网关的设计.现代电子技术.2013,(09),第3页. * |
| 赵升 ; 谢文彬 ; 高猛 ; .基于无线网络的非接触式IC卡考勤系统的设计.电子测量技术.2010,(11),1-10. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107968746A (en) | 2018-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107968746B (en) | Multilink internet of things gateway and working method thereof | |
| CN107911801A (en) | A kind of wireless communication system and method based on LoRa | |
| CN106355873B (en) | Internet of things intelligent traffic gateway and system thereof | |
| CN105516338B (en) | A kind of Intelligent hardware networking method, gateway and system for wearing | |
| CN101275957A (en) | Wireless temperature and humidity intelligent sensor | |
| CN106993051A (en) | A kind of internet of things data acquisition terminal based on ZigBee | |
| CN107171906A (en) | A kind of intelligent domestic system of mobile terminal control | |
| CN202600943U (en) | Zigbee technology based data acquisition system | |
| CN102548032A (en) | Wireless sensing network node capable of realizing simultaneous access of digital quantity and analog quantity | |
| CN106656224A (en) | Communication node and communication system of internet of things | |
| CN102324177A (en) | Electric car charging pile data acquisition system based on WiFi radio over fiber technology | |
| CN205921605U (en) | Thing networking systems of multiple access internet mode is supported to integrated service gateway | |
| CN202856741U (en) | GPON terminal with WIFI and Bluetooth functions | |
| CN207896983U (en) | Multilink things-internet gateway | |
| CN109743718A (en) | Wireless ad hoc network system based on LoRa | |
| CN205754430U (en) | Radio reception device and cloud mesh radio system | |
| CN111654834B (en) | Wireless acquisition device and method for SDI12 sensor data based on NB-IoT | |
| CN209980043U (en) | Thing networking intelligent terminal data acquisition wireless transmission device | |
| CN205737407U (en) | A kind of displacement monitoring alarm device and warning system | |
| CN202998504U (en) | Multifunctional wireless control intelligent gateway | |
| CN204331958U (en) | Based on the passive infrared detection device of Zigbee-technology | |
| CN212413045U (en) | Sensor terminal circuit | |
| CN204335019U (en) | Intelligent illumination management system, OLT and optical network device | |
| CN213545528U (en) | Wireless transmission device of controllable load data acquisition system | |
| CN204759173U (en) | Data acquisition control system based on zigBee technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |