CN111182508B - LoRa communication network and communication method thereof - Google Patents
LoRa communication network and communication method thereof Download PDFInfo
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- CN111182508B CN111182508B CN202010005321.6A CN202010005321A CN111182508B CN 111182508 B CN111182508 B CN 111182508B CN 202010005321 A CN202010005321 A CN 202010005321A CN 111182508 B CN111182508 B CN 111182508B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The invention discloses an LoRa communication network and a communication method thereof, wherein the LoRa communication network comprises a LoRa gateway and a plurality of LoRa nodes connected with the LoRa gateway, and the LoRa gateway is provided with a single-channel chip and a multi-channel chip; the LoRa gateway is used for registering and networking the LoRa nodes through the single-channel chip; the LoRa gateway is used for carrying out data transmission of the LoRa nodes through the multi-channel chip. The utility model provides a protocol of single channel chip and multichannel chip collocation scheme customization realizes that the real-time status of equipment is looked over and is controlled, does not exist if all equipment of simultaneous control, and the condition of some equipment unresponsiveness can also be solved the problem of high concurrency volume in addition, looks over the equipment state simultaneously, the channel jam can not appear and lose the frame, simultaneously, for other wide area wireless communication technologies that can realize real-time communication, it is with low costs.
Description
Technical Field
The invention belongs to the field of wireless communication, and particularly relates to an LoRa communication network and a communication method thereof.
Background
In the wireless communication technology, the major communication direction of the LoRa is a long-distance low-power consumption multi-node, but the low speed causes high time delay. At present, an LoRa communication system mainly comprises nodes and gateways, all LoRa nodes are in wireless connection with one gateway, the gateway is responsible for uploading and issuing data of all nodes in a network, and the communication rate of LoRa is higher, the distance is shorter, the communication rate is lower, and the distance is longer.
At present, there are two gateway schemes of the LoRa communication system:
3/4 single-channel chips (such as SX1276/8) form a gateway with 3/4 LoRa channels and run a private protocol. For a gateway composed of a single-channel chip (such as SX1276/8), there are only a few channels available for data communication, and if dozens of LoRa nodes upload data to the gateway at the same time, channel congestion may be caused, and further problems of packet loss and long delay may occur.
And (II) a multi-channel chip (such as an SX1301 chip with 8 receiving channels and 1 sending channel) is provided, and a LoRaWan protocol (a communication protocol) is operated. However, for a gateway composed of multiple channel chips (such as SX1301) at present, although the problem of high concurrency can be solved, only one sending channel is provided, so that data sending and node access cannot be completed simultaneously in an actual operation process, that is, real-time access of a node cannot be realized. In addition, see patent applications: a data transmission method (CN109302450) based on statistical-TDMA and LoRa discloses that statistical-TDMA, FDMA and TDMA technologies are used comprehensively, TDMA is used between each concentrator and the corresponding terminal for data transmission, FDMA and frequency hopping are used between gateways and concentrators for data transmission, and finally, the LoRa gateway uses the statistical-TDMA technology to perform statistical processing on node data collected by each concentrator, so that LoRa network capacity, channel utilization rate and transmission distance can be effectively improved. In addition, from the system architecture, the concentrator is required to be used as a relay, and the complexity and cost of the system are increased to a certain extent.
Disclosure of Invention
The invention provides an LoRa communication network and a communication method thereof, aiming at overcoming the defects that in the prior art, channel congestion and frame loss are easy to occur in LoRa communication only based on a single-channel chip, and real-time communication cannot be realized in LoRa communication only based on a multi-channel chip.
The invention solves the technical problems through the following technical scheme:
a kind of LoRa communication network, the said LoRa communication network includes LoRa gateway and a plurality of LoRa nodes connected with said LoRa gateway, the said LoRa gateway has single-channel chips and multi-channel chips;
the LoRa gateway is used for registering and networking the LoRa nodes through the single-channel chip;
the LoRa gateway is used for carrying out data transmission of the LoRa nodes through the multi-channel chip.
Preferably, the multi-channel chip comprises a sending channel and a plurality of receiving channels, the sending channel of the multi-channel chip corresponds to a downlink frequency point, and the receiving channel of each multi-channel chip corresponds to an uplink frequency point;
the LoRa node is used for uploading data to the LoRa gateway through the uplink frequency point of the multi-channel chip;
the LoRa gateway is used for sending data to the LoRa node through the downlink frequency point of the multi-channel chip.
Preferably, each LoRa node is connected with an external device, the single-channel chip comprises a sending channel and a receiving channel, the sending channel of the single-channel chip corresponds to a downlink frequency point, and the receiving channel of the single-channel chip corresponds to an uplink frequency point;
each LoRa node is used for uploading a connection request through the uplink frequency point of the single-channel chip;
the LoRa gateway is used for receiving the connection request and issuing setting information to each LoRa node, wherein the setting information comprises ID (identity) information of each LoRa node and uplink frequency point information and downlink frequency point information of a multi-channel chip corresponding to each LoRa node;
each LoRa node is used for uploading state information of external equipment to the LoRa gateway through an uplink frequency point of a multi-channel chip corresponding to the uplink frequency point information;
the LoRa gateway is used for issuing control information for controlling the external equipment to each LoRa node through the downlink frequency point of the multi-channel chip corresponding to the downlink frequency point information.
Preferably, each LoRa node is further configured to automatically select an SF (rate) value according to the received signal strength of the setting information, and upload the SF value to the LoRa gateway through an uplink frequency point of the single-channel chip;
the loRa gateway is further configured to send control information corresponding to the SF values to each loRa node based on the SF values.
Preferably, each LoRa node is configured to send the changed state information to the LoRa gateway when the state information of the external device changes, and/or each LoRa node is configured to send the state information of the external device to the LoRa gateway every other preset period.
A communication method of an LoRa communication network, the communication method being implemented by the LoRa communication network, the communication method comprising:
the LoRa gateway performs registration networking of the LoRa nodes through the single-channel chip;
and the LoRa gateway transmits the data of the LoRa nodes through the multi-channel chip.
Preferably, the multichannel chip includes a sending channel and a plurality of receiving channels, the sending channel of the multichannel chip corresponds to a downlink frequency point, the receiving channel of each multichannel chip corresponds to an uplink frequency point, and the LoRa gateway performs the data transmission of the LoRa node through the multichannel chip specifically includes:
the LoRa node uploads data to the LoRa gateway through the uplink frequency point of the multi-channel chip;
and the LoRa gateway issues data to the LoRa node through the downlink frequency point of the multi-channel chip.
Preferably, every loRa node has connect an external equipment, the single channel chip includes a send channel and a receive channel, the send channel of single channel chip corresponds a downstream frequency point, the receive channel of single channel chip corresponds an upstream frequency point, the loRa gateway passes through the single channel chip carries out the registration networking's of loRa node step specifically includes:
each LoRa node uploads a connection request through the uplink frequency point of the single-channel chip;
the LoRa gateway receives the connection request and issues setting information to each LoRa node, wherein the setting information comprises ID information of each LoRa node and uplink frequency point information and downlink frequency point information of a multi-channel chip corresponding to each LoRa node;
the steps of the data transmission of the LoRa node by the LoRa gateway through the multi-channel chip specifically include:
each LoRa node uploads the state information of external equipment to the LoRa gateway through the uplink frequency point of the multi-channel chip corresponding to the uplink frequency point information;
and the LoRa gateway issues control information for controlling the external equipment to each LoRa node through the downlink frequency point of the multi-channel chip corresponding to the downlink frequency point information.
Preferably, after the steps of receiving the connection request and issuing the setting information to each LoRa node by the LoRa gateway, the communication method further includes:
each LoRa node automatically selects an SF value according to the received signal strength of the setting information, and uploads the SF value to the LoRa gateway through an uplink frequency point of the single-channel chip;
and the LoRa gateway respectively sends the control information with the number corresponding to the SF value to each LoRa node based on the SF value.
Preferably, the step of uploading the state information of the external device to the LoRa gateway by each LoRa node through the uplink frequency point of the multi-channel chip corresponding to the uplink frequency point information specifically includes:
each LoRa node is in when the state information of external equipment changes, the state information after the change is sent to the LoRa gateway, and/or each LoRa node sends the state information of external equipment to the LoRa gateway every other preset period.
The positive progress effects of the invention are as follows: based on loRa communication, the gateway node number is less (less than 100) and the user need carry out real-time and equipment interactive scene, the agreement of single channel chip and the customization of multichannel chip collocation scheme of this application, realize that the real-time status of equipment is looked over and is controlled, do not exist if all equipment of simultaneous control, the condition that some equipment do not react, can also solve the problem of high concurrency volume in addition, look over the equipment state simultaneously, the channel congestion can not appear and the frame is lost, simultaneously, for other wide area wireless communication techniques that can realize real-time communication, and is low in cost.
Drawings
Fig. 1 is a schematic structural diagram of an LoRa communication network according to embodiment 1 of the present invention.
Fig. 2 is a flowchart of a communication method of the LoRa communication network according to embodiment 4 of the present invention.
Fig. 3 is a flowchart of step 20 in the communication method of the LoRa communication network according to embodiment 4 of the present invention.
Fig. 4 is a flowchart of a communication method of the LoRa communication network according to embodiment 5 of the present invention.
Fig. 5 is a flowchart of a communication method of the LoRa communication network according to embodiment 6 of the present invention.
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
Example 1
An LoRa communication network, as shown in fig. 1, includes an LoRa gateway 1 and a plurality of LoRa nodes 2 connected to the LoRa gateway 1, where the LoRa gateway 1 is provided with a single-channel chip 3 and a multi-channel chip 4;
the LoRa gateway 1 is used for registering and networking the LoRa nodes 2 through the single-channel chip 3;
the LoRa gateway 1 is configured to perform data transmission of the LoRa node 2 through the multi-channel chip 4.
The multichannel chip 4 comprises a sending channel and a plurality of receiving channels, the sending channel of the multichannel chip 4 corresponds to a downlink frequency point, and the receiving channel of each multichannel chip 4 corresponds to an uplink frequency point;
the LoRa node 2 is configured to upload data to the LoRa gateway 1 through the uplink frequency point of the multi-channel chip 4;
the LoRa gateway 1 is configured to issue data to the LoRa node 2 through the downlink frequency point of the multi-channel chip 4.
Such as: the LoRa base station is composed of 1 multi-channel chip 4 (such as SX1301) and 1 single-channel chip 3 (such as SX1276/8), wherein the single-channel chip 3 is used for registration networking of nodes, the multi-channel chip 4 is used for data transmission of users, but a LoRaWan protocol is not used, but a customized private protocol for processing high concurrency is used, so that the base station has 9(1+8) receiving physical channels and 2 sending physical channels, the 9 receiving channels are not interfered with each other and can work in parallel, and the 2 sending channels are also the same.
In the specific operation, referring to fig. 1, the LoRa terminal of the LoRa node 2 collects the state information of the external device 5 and sends the state information to the LoRa base station of the LoRa gateway 1, and then the LoRa gateway 1 sends the state information to the server 6 through 4G or Wi-Fi (wireless network), and the server 6 pushes the state information to the mobile phone 7APP to be presented to the user. Otherwise, the user can control the operation of the device through the mobile phone 7 APP: APP pushes the control instruction to server 6, server 6 forwards to LoRa gateway 1, and LoRa gateway 1 issues LoRa node 2 through the LoRa base station, and then controls external device 5.
In this embodiment, the agreement of single channel chip and the customization of multichannel chip collocation scheme realizes registering networking and data transmission's respectively control between loRa gateway and the loRa node, solves the problem of high concurrency volume, and the channel congestion can not appear simultaneously and the frame is lost, in addition, for other wide area wireless communication technologies that can realize real-time communication, the cost is lower.
Example 2
The LoRa communication network of this embodiment is further improved on the basis of embodiment 1, referring to fig. 1, each LoRa node 2 is connected with an external device 5, the single-channel chip 3 includes a sending channel and a receiving channel, the sending channel of the single-channel chip 3 corresponds to a downlink frequency point, and the receiving channel of the single-channel chip 3 corresponds to an uplink frequency point;
each LoRa node 2 is used for uploading a connection request through the uplink frequency point of the single-channel chip 3;
the LoRa gateway 1 is configured to receive the connection request and issue setting information to each LoRa node 2, where the setting information includes ID information of each LoRa node 2 and uplink frequency point information and downlink frequency point information of the multi-channel chip 4 corresponding to each LoRa node 2;
each LoRa node 2 is used for uploading the state information of the external equipment 5 to the LoRa gateway 1 through the uplink frequency point of the multi-channel chip 4 corresponding to the uplink frequency point information;
the LoRa gateway 1 is configured to issue control information for controlling the external device 5 to each LoRa node 2 through a downlink frequency point of the multi-channel chip 4 corresponding to the downlink frequency point information.
It should be noted that, in the power-on process of the LoRa node 2, a base station connected to the LoRa gateway 1 is automatically applied by using a specific registration frequency point, and after the connection is successful, the base station sets an ID, an uplink/downlink frequency point, a BW bandwidth, and the like for the node, and after the LoRa node 2 is successfully registered and networked, the identity of the LoRa node 2 is identified by using the ID.
In addition, for setting the uplink frequency point information and the downlink frequency point information of the multichannel chip 4 of the LoRa node 2: all the successfully networked LoRa nodes 2 equally divide the uplink frequency points of the multi-channel chip 4, such as: the base station end has 8 receiving channels corresponding to 8 uplink frequency points, and the LoRa node 2 equally divides 8 frequency points, such as 96 LoRa nodes 2, 12 working at frequency point 1, 12 working at frequency point 2 … …, etc.; all the successfully networked LoRa nodes 2 share the downlink frequency point of the same multi-channel chip 4.
Each LoRa node 2 is configured to send the changed state information to the LoRa gateway 1 when the state information of the external device 5 changes, and/or each LoRa node 2 is configured to send the state information of the external device 5 to the LoRa gateway 1 every other preset period.
It should be noted that, when detecting that the state of the external device 5 changes, the LoRa node 2 may report the device state immediately, and if the state does not change, the LoRa node transmits the device state once in routine, for example, 60s, assuming that the capacity of each upload channel is 3kpbs on average, there are 13 nodes in each upload channel at maximum, and the byte length of the state frame is controlled within 32 bytes, and the state reporting of all nodes may be implemented within 1 s. In this embodiment, the protocol customized by the scheme of matching the single-channel chip 3 and the multi-channel chip 4 realizes the real-time viewing and control of the device, and the situation that some devices do not respond if all devices are controlled simultaneously is avoided, so that the problem of high concurrency is solved and the situations of channel congestion and frame loss are avoided.
Example 3
The LoRa communication network of this embodiment is further improved on the basis of embodiment 2, and each LoRa node 2 is further configured to automatically select an SF value according to the received signal strength of the setting information, and upload the SF value to the LoRa gateway 1 through an uplink frequency point of the single-channel chip 3;
the LoRa gateway 1 is further configured to send control information corresponding to the SF values to each LoRa node 2 based on the SF values.
It should be noted that, in practical applications, some LoRa nodes are far away from the base station of the LoRa gateway, and the settings of high sensitivity and slow speed should be used; some LoRa nodes are closer to the base station and a less sensitive but high rate configuration may be used. The loRa node of this embodiment is at the in-process of registering the networking, and according to the signal strength that the base station that receives sent, the automatic selection SF, realizes the control to different loRa nodes far and near through setting up different SF. In addition, in the receiving channel of the same multi-channel chip, different SF parameters can be set without influencing the receiving of the base station, the channel congestion cannot be caused by different SF settings of the same receiving frequency point, but at the same time, each receiving channel of the base station can only process one LoRa signal.
In this embodiment, after the base station side of the LoRa gateway completes issuing the control command, the control command is issued to all LoRa nodes in a broadcast manner, all nodes work at the same downlink frequency point, the downlink frequency point has multiple different SF configurations (such as 3 rates), the base station issues 3 broadcast control frames at a time, the byte of each frame is controlled in 128 bytes, the sending of 3 broadcast frames can be completed every second, each LoRa node can receive the corresponding broadcast frame, further, the control content consistent with the ID of itself is analyzed, and corresponding control is completed.
Example 4
A communication method of an LoRa communication network, as shown in fig. 2, the communication method being implemented by the LoRa communication network according to any one of embodiments 1 to 3, the communication method comprising:
and step 20, the LoRa gateway transmits data of the LoRa nodes through the multi-channel chip.
Wherein, the multi-channel chip includes a sending channel and a plurality of receiving channels, the sending channel of the multi-channel chip corresponds to a downlink frequency point, and the receiving channel of each multi-channel chip corresponds to an uplink frequency point, as shown in fig. 3, step 20 specifically includes:
and step 212, the LoRa gateway issues data to the LoRa node through the downlink frequency point of the multi-channel chip.
Such as: the LoRa base station is composed of 1 piece of multi-channel chip (such as SX1301) and 1 piece of single-channel chip (such as SX1276/8), wherein the single-channel chip is used for registration networking of nodes, and the multi-channel chip is used for data transmission of users, but a LoRaWan protocol is not used, but a customized private protocol for processing high concurrency is used, so that the base station has 9(1+8) receiving physical channels and 2 sending physical channels, the 9 receiving channels are not interfered with each other and can work in parallel, and the 2 sending channels are also the same.
In this embodiment, the agreement of single channel chip and the customization of multichannel chip collocation scheme realizes registering networking and data transmission's respectively control between loRa gateway and the loRa node, solves the problem of high concurrency volume, and the channel congestion can not appear simultaneously and the frame is lost, in addition, for other wide area wireless communication technologies that can realize real-time communication, the cost is lower.
Example 5
The communication method of the LoRa communication network in this embodiment is further improved on the basis of embodiment 4, each LoRa node is connected to an external device, the single-channel chip includes a sending channel and a receiving channel, the sending channel of the single-channel chip corresponds to a downlink frequency point, the receiving channel of the single-channel chip corresponds to an uplink frequency point, and as shown in fig. 4, step 10 specifically includes:
102, receiving a connection request and issuing setting information to each LoRa node by the LoRa gateway; the setting information comprises ID information of each LoRa node and uplink frequency point information and downlink frequency point information of a multi-channel chip corresponding to each LoRa node;
further, referring to fig. 4, step 20 specifically includes:
It should be noted that, in the power-on process of the LoRa node, a base station connected to the LoRa gateway is automatically applied by using a specific registration frequency point, after the connection is successful, the base station sets an ID, an uplink/downlink frequency point, a BW bandwidth, and the like for the LoRa node, and after the LoRa node is successfully registered and networked, the identity of the LoRa node is identified by using the ID.
In addition, it should be noted that, for setting the uplink frequency point information and the downlink frequency point information of the multi-channel chip of the LoRa node: all successfully networked LoRa nodes equally divide uplink frequency points of the multi-channel chip, such as: the base station end has 8 receiving channels corresponding to 8 uplink frequency points, and the LoRa nodes equally divide 8 frequency points, such as 96 LoRa nodes, 12 working at frequency point 1, 12 working at frequency point 2 … …, etc.; all the successfully networked LoRa nodes share the downlink frequency point of the same multi-channel chip.
In this embodiment, step 221 specifically includes:
each LoRa node is in when the state information of external equipment changes, the state information after the change is sent to the LoRa gateway, and/or each LoRa node sends the state information of external equipment to the LoRa gateway every other preset period.
It should be noted that, when detecting that the state of the external device changes, the LoRa node immediately reports the state of the device, and if the state of the external device does not change, the LoRa node regularly sends the device once in 60s, for example, assuming that the capacity of each upload channel is 3kpbs on average, there are 13 nodes in each upload channel at maximum, and the byte length of the status frame is controlled within 32 bytes, so that the state reporting of all nodes can be realized within 1 s. In this embodiment, the protocol customized by the single-channel chip and multi-channel chip collocation scheme realizes real-time state viewing and control of the device, and if all devices are controlled simultaneously, some devices do not respond, so that the problems of high concurrency are solved while avoiding channel congestion and frame loss.
Example 6
The communication method of the LoRa communication network of this embodiment is further improved on the basis of embodiment 5, as shown in fig. 5, after step 102, the communication method further includes:
103, each LoRa node automatically selects an SF value according to the signal intensity of the received setting information, and uploads the SF value to a LoRa gateway through an uplink frequency point of a single-channel chip;
and step 104, the LoRa gateway respectively sends control information with the number corresponding to the SF value to each LoRa node based on the SF value.
It should be noted that, in practical applications, some LoRa nodes are far away from the base station of the LoRa gateway, and the settings of high sensitivity and slow speed should be used; some LoRa nodes are closer to the base station and a less sensitive but high rate configuration may be used. The loRa node of this embodiment is at the in-process of registering the networking, and according to the signal strength that the base station that receives sent, the automatic selection SF, realizes the control to different loRa nodes far and near through setting up different SF. In addition, in the receiving channel of the same multi-channel chip, different SF parameters can be set without influencing the receiving of the base station, the channel congestion cannot be caused by different SF settings of the same receiving frequency point, but at the same time, each receiving channel of the base station can only process one LoRa signal.
In this embodiment, after the base station side of the LoRa gateway completes issuing the control command, the control command is issued to all LoRa nodes in a broadcast manner, all nodes work at the same downlink frequency point, the downlink frequency point has multiple different SF configurations (such as 3 rates), the base station issues 3 broadcast control frames at a time, the byte of each frame is controlled in 128 bytes, the sending of 3 broadcast frames can be completed every second, each LoRa node can receive the corresponding broadcast frame, further, the control content consistent with the ID of itself is analyzed, and corresponding control is completed.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (10)
1. The LoRa communication network is characterized by comprising a LoRa gateway and a plurality of LoRa nodes connected with the LoRa gateway, wherein the LoRa gateway is provided with a single-channel chip and a multi-channel chip; the multi-channel chip comprises a sending channel and a plurality of receiving channels, the single-channel chip comprises a sending channel and a receiving channel, the sending channel of the multi-channel chip and the sending channel of the single-channel chip work in parallel, and the receiving channel of the multi-channel chip and the receiving channel of the single-channel chip work in parallel;
the LoRa gateway is used for registering and networking the LoRa nodes through the single-channel chip;
the LoRa gateway is used for carrying out data transmission of the LoRa nodes through the multi-channel chip.
2. The LoRa communication network of claim 1, wherein the transmission channel of the multi-channel chip corresponds to a downlink frequency point, and the reception channel of each multi-channel chip corresponds to an uplink frequency point;
the LoRa node is used for uploading data to the LoRa gateway through the uplink frequency point of the multi-channel chip;
the LoRa gateway is used for sending data to the LoRa node through the downlink frequency point of the multi-channel chip.
3. The LoRa communication network of claim 2, wherein each LoRa node is connected to an external device, the transmission channel of the single channel chip corresponds to a downlink frequency point, and the reception channel of the single channel chip corresponds to an uplink frequency point;
each LoRa node is used for uploading a connection request through the uplink frequency point of the single-channel chip;
the LoRa gateway is used for receiving the connection request and issuing setting information to each LoRa node, wherein the setting information comprises ID information of each LoRa node and uplink frequency point information and downlink frequency point information of a multi-channel chip corresponding to each LoRa node;
each LoRa node is used for uploading state information of external equipment to the LoRa gateway through an uplink frequency point of a multi-channel chip corresponding to the uplink frequency point information;
the LoRa gateway is used for issuing control information for controlling the external equipment to each LoRa node through the downlink frequency point of the multi-channel chip corresponding to the downlink frequency point information.
4. The LoRa communication network according to claim 3,
each LoRa node is also used for automatically selecting a speed value according to the received signal strength of the setting information and uploading the speed value to the LoRa gateway through an uplink frequency point of the single-channel chip;
and the LoRa gateway is also used for respectively sending control information with the number corresponding to the speed value to each LoRa node based on the speed value.
5. The LoRa communication network according to claim 3, wherein each LoRa node is configured to send the changed status information to the LoRa gateway when the status information of the external device changes, and/or wherein each LoRa node is configured to send the status information of the external device to the LoRa gateway every preset period.
6. A communication method of an LoRa communication network, wherein the communication method is implemented by using the LoRa communication network according to any one of claims 1 to 5, and the communication method comprises:
the LoRa gateway performs registration networking of the LoRa nodes through the single-channel chip;
and the LoRa gateway transmits the data of the LoRa nodes through the multi-channel chip.
7. The communication method of the LoRa communication network of claim 6, wherein the sending channel of the multi-channel chip corresponds to one downlink frequency point, the receiving channel of each multi-channel chip corresponds to one uplink frequency point, and the steps of the LoRa gateway performing the data transmission of the LoRa node through the multi-channel chip specifically include:
the LoRa node uploads data to the LoRa gateway through the uplink frequency point of the multi-channel chip;
and the LoRa gateway issues data to the LoRa node through the downlink frequency point of the multi-channel chip.
8. The communication method of an LoRa communication network according to claim 7, wherein each LoRa node is connected to an external device, the sending channel of the single channel chip corresponds to a downlink frequency point, the receiving channel of the single channel chip corresponds to an uplink frequency point, and the steps of the LoRa gateway performing registration networking of the LoRa node through the single channel chip specifically include:
each LoRa node uploads a connection request through the uplink frequency point of the single-channel chip;
the LoRa gateway receives the connection request and issues setting information to each LoRa node, wherein the setting information comprises ID information of each LoRa node and uplink frequency point information and downlink frequency point information of a multi-channel chip corresponding to each LoRa node;
the steps of the data transmission of the LoRa node by the LoRa gateway through the multi-channel chip specifically include:
each LoRa node uploads the state information of external equipment to the LoRa gateway through the uplink frequency point of the multi-channel chip corresponding to the uplink frequency point information;
and the LoRa gateway issues control information for controlling the external equipment to each LoRa node through the downlink frequency point of the multi-channel chip corresponding to the downlink frequency point information.
9. The communication method of an LoRa communication network according to claim 8, wherein after the steps of receiving the connection request and issuing setting information to each LoRa node by the LoRa gateway, the communication method further comprises:
each LoRa node automatically selects a speed value according to the received signal strength of the setting information, and uploads the speed value to the LoRa gateway through an uplink frequency point of the single-channel chip;
and the LoRa gateway respectively sends the control information with the number corresponding to the speed value to each LoRa node based on the speed value.
10. The communication method of an LoRa communication network according to claim 8, wherein the step of uploading the state information of the external device to the LoRa gateway by the uplink frequency point of the multi-channel chip corresponding to the uplink frequency point information by each LoRa node specifically includes:
each LoRa node is in when the state information of external equipment changes, the state information after the change is sent to the LoRa gateway, and/or each LoRa node sends the state information of external equipment to the LoRa gateway every other preset period.
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| CN113259956A (en) * | 2020-02-07 | 2021-08-13 | 阿里巴巴集团控股有限公司 | LoRa data transmission method, LoRa gateway, LoRa node and LoRa network |
| CN113905369A (en) * | 2021-07-27 | 2022-01-07 | 深圳矽递科技股份有限公司 | Low-power-consumption communication method and device, terminal equipment and storage medium |
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