CN111935723A - Wireless data transmission terminal and transmission method - Google Patents
Wireless data transmission terminal and transmission method Download PDFInfo
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- CN111935723A CN111935723A CN202010482689.1A CN202010482689A CN111935723A CN 111935723 A CN111935723 A CN 111935723A CN 202010482689 A CN202010482689 A CN 202010482689A CN 111935723 A CN111935723 A CN 111935723A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 6
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 4
- 230000004044 response Effects 0.000 claims description 9
- 230000005059 dormancy Effects 0.000 claims description 7
- 230000007958 sleep Effects 0.000 claims description 7
- 230000003993 interaction Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 2
- 230000006855 networking Effects 0.000 abstract description 3
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/18—Network planning tools
- H04W16/20—Network planning tools for indoor coverage or short range network deployment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
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- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a wireless data transmission terminal and a transmission method, comprising terminal equipment, a gateway and a network server; the gateway is used for bidirectional data transmission of the terminal equipment and the network server and monitoring the network state in real time; the network server is used for receiving data and issuing commands, and optimizing in real time according to network conditions. The wireless data transmission terminal effectively solves the problems of gateway networking, indoor deployment support, outdoor Class A service support and asymmetry of the upper link and the lower link of indoor coverage equipment; the gateways with the three different rates of SF7, SF9 and SF12 are used, a scene of high-rate low delay and medium-rate medium delay is provided, and the problem of additional 5-8dB boundary asymmetry is solved.
Description
Technical Field
The invention belongs to the technical field of information, and particularly relates to a wireless data transmission terminal and a transmission method.
Background
Currently, the internet of things network technology commonly used in the industry is as follows: the LoRa communication technology is an ultra-long distance infinite transmission technology based on a spread spectrum technology, and has the advantages of long transmission distance, strong penetrability, low power consumption and the like, and the application range is wider and wider. LoRaWAN is a LoRa technology low power consumption wide area network specification introduced by the LoRa alliance, and defines LoRa communication specifications and a network structure when LoRa is used as a physical layer for long-distance communication.
The existing LoRaWAN serving as a narrow-band Internet of things effectively solves the outdoor Internet of things service scene, wherein the ClassA communication mode of the LoRaWAN solves the data reporting service in the Internet of things uplink service scene, but cannot achieve perfect indoor coverage and timely downlink response, the Class C is additionally provided with a receiving window on the basis of the Class A, the window needs a node and a server to carry out clock synchronization, the receiving window with high power consumption is continuously opened to solve the timely downlink response, but cannot achieve low power consumption in the scene that the Internet of things uses a battery for power supply, the contradiction between the power consumption and the timely response is not solved, and the application scene with higher requirements on the low power consumption of equipment is not suitable.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a wireless data transmission terminal and a wireless data transmission method aiming at the problems, so that the problems of gateway networking, indoor deployment support, outdoor Class A service support and asymmetrical uplink and downlink of indoor coverage equipment are solved.
In order to achieve the purpose, the invention adopts the following scheme:
a wireless data transmission terminal comprises terminal equipment, a gateway and a network server; the gateway is used for bidirectional data transmission of the terminal equipment and the network server and monitoring the network state in real time; the network server is used for receiving data and issuing commands, and optimizing in real time according to network conditions.
And the terminal equipment of the wireless data transmission terminal is loaded with a radio frequency chip.
In the wireless data transmission terminal, three nodes, namely a third node, a fifth node and a seventh node, are arranged on the terminal equipment; a node is arranged on the gateway and is a first node; the network server is provided with four nodes, namely a second node, a fourth node, a sixth node and an eighth node.
The method for wireless data transmission by using the wireless data transmission terminal comprises the following steps:
s1, initializing a network system;
s2, network access: accessing a network by a gateway and accessing a network by terminal equipment;
s3, network interaction: the method comprises the steps that terminal equipment reports data, a gateway monitors a busy state of a channel and sends the data reported by the terminal equipment to a network server, and the network server immediately transmits a reply message through the gateway after receiving the data reported by the terminal equipment;
s4 sleep and sleep wake-up again data exchange.
In the method for wireless data transmission, the specific method for the gateway to access the network in step S2 is: and the first node on the gateway sends a network access request to a second node on the network server, and the second node receives the network access signal and then sends a reply gateway network access signal to the first node to realize the gateway network access.
In the method for wireless data transmission, the specific method for the terminal device to access the network in step S2 is: and the fourth node receives the network access signal and then sends a reply terminal device network access signal to the third node after being transmitted by the gateway, so that the terminal device accesses the network.
In the method for wireless data transmission, the specific method of network interaction in step S3 is: and reporting data at a fifth node on the terminal equipment, monitoring the busy state of a channel by the gateway, uploading the data reported at the fifth node to a sixth node of the network server, and immediately transmitting a reply message to the fifth node through the gateway after the sixth node receives the reported data.
In the method for wireless data transmission, the specific method of the step S4 for the dormancy and dormancy wakeup re-data exchange is as follows: when the fifth node of the terminal equipment has no data to send and needs to process an issuing command and then enters the dormancy state, the eighth node of the network server sends an instruction to modify the gateway and the parameters of the terminal equipment at the moment, the terminal equipment wakes up periodically to listen to the wake-up packet, and after the seventh node of the terminal equipment receives the wake-up instruction, the seventh node immediately makes an instruction response and transmits the instruction response to the eighth node of the network server through the gateway.
Has the advantages that:
compared with the prior art, the invention has the advantages that: the wireless data transmission terminal has reasonable structural design and strong practicability, effectively solves the problems of gateway networking, indoor deployment support, outdoor Class A service support and asymmetry of the upper link and the lower link of indoor coverage equipment, provides a high-speed low-delay and medium-speed medium-delay scene by using three gateways with different speeds of SF7, SF9 and SF12, and solves the problem of additional 5-8dB boundary asymmetry; adding into a family and community management group to support service management in the group, such as positioning, and respective family and community management contextual models; the method supports awakening, low-power-consumption receiving and configurable delay window; a busy back-off mechanism supporting sending, slot time and back-off window configurable; and the pilot frequency is received and transmitted, so that collision is reduced, and electric energy is saved.
Drawings
Fig. 1 is a simplified state diagram of a wireless data transmission terminal.
Fig. 2 is a flow chart of a method for using a wireless data transmission terminal.
Fig. 3 is a network signal coverage diagram of a wireless data transmission terminal.
In the figure: 1-terminal equipment, 2-gateway, 3-network server, 4-first node, 5-second node, 6-third node, 7-fourth node, 8-fifth node, 9-sixth node, 10-seventh node and 11-eighth node.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
A wireless data transmission terminal, comprising:
the terminal equipment 1 is used for carrying a radio frequency chip;
the gateway 2 is responsible for bidirectional data transmission of the terminal equipment 1 and the network server 3 and real-time monitoring of the network state;
the network server 3 is responsible for receiving data and issuing commands and carrying out real-time optimization according to network conditions;
and the terminal equipment 1, the gateway 2 and the network server 3 are all provided with nodes, and the nodes are used for exchanging information among the terminal equipment 1, the gateway 2 and the network server 3.
Specifically, the terminal device 1 is provided with three nodes, namely a third node 6, a fifth node 8 and a seventh node 10; a node is arranged on the gateway 2 and is a first node 4; the network server 3 is provided with three nodes, namely a second node 5, a fourth node 7, a sixth node 9 and an eighth node 11.
A method for using a wireless data transmission terminal, comprising the steps of: initialization of the network system, network access, network interaction, dormancy and dormancy wakeup are carried out again for data exchange.
The network access step comprises two parts, namely gateway network access and terminal equipment network access.
The gateway network access specific implementation mode is as follows: the first node 4 on the gateway 2 sends a network access request to the second node 5 on the network server 3, and the second node 5 receives the network access signal and then sends a reply gateway network access signal to the first node 4, so that the gateway 2 accesses the network.
The network access implementation mode of the terminal equipment is as follows: the third node 6 on the terminal device 1 sends a network access request to the gateway 2, the network access request is sent to the fourth node 7 on the network server 3 after being transmitted by the gateway 2, the fourth node 7 receives the network access signal and then sends a network access signal of the reply terminal device 1 back to the third node 6 after being transmitted by the gateway 2, and network access of the terminal device 1 is realized.
The network interaction implementation mode is as follows: the fifth node 8 on the terminal device 1 reports data, the gateway 2 monitors the busy state of the channel and uploads the data reported by the fifth node 8 to the sixth node 9 of the network server 3, and the sixth node 9 immediately transmits a reply message to the fifth node 8 through the gateway 2 after receiving the reported data.
The implementation mode of the dormancy wakeup secondary data exchange is as follows: when there is no data transmission and an issue command to be processed at the fifth node 8 of the terminal device 1, the terminal device enters into sleep, at this time, the eighth node 11 of the network server 3 sends an instruction to modify parameters of the gateway 2 and the terminal device 1, periodically wakes up to listen to the wake-up packet, and after receiving the wake-up instruction at the seventh node 10 of the terminal device 1, immediately makes an instruction response and transmits the instruction response to the eighth node 11 of the network server 3 through the gateway 2.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (8)
1. A wireless data transmission terminal is characterized by comprising terminal equipment, a gateway and a network server; the gateway is used for bidirectional data transmission of the terminal equipment and the network server and monitoring the network state in real time; the network server is used for receiving data and issuing commands, and optimizing in real time according to network conditions.
2. The wireless data transmission terminal according to claim 1, wherein a radio frequency chip is mounted on the terminal device.
3. The wireless data transmission terminal according to claim 1, wherein the terminal device is provided with three nodes, namely a third node, a fifth node and a seventh node; a node is arranged on the gateway and is a first node; the network server is provided with four nodes, namely a second node, a fourth node, a sixth node and an eighth node.
4. A method for performing wireless data transmission by using the wireless data transmission terminal, the method comprising the steps of:
s1, initializing a network system;
s2, network access: accessing a network by a gateway and accessing a network by terminal equipment;
s3, network interaction: the method comprises the steps that terminal equipment reports data, a gateway monitors a busy state of a channel and sends the data reported by the terminal equipment to a network server, and the network server immediately transmits a reply message through the gateway after receiving the data reported by the terminal equipment;
s4 sleep and sleep wake-up again data exchange.
5. The method of claim 4, wherein the specific method for the gateway to access the network in step S2 is as follows: and the first node on the gateway sends a network access request to a second node on the network server, and the second node receives the network access signal and then sends a reply gateway network access signal to the first node to realize the gateway network access.
6. The method of claim 4, wherein the specific method for the terminal device to access the network in step S2 is as follows: and the fourth node receives the network access signal and then sends a reply terminal device network access signal to the third node after being transmitted by the gateway, so that the terminal device accesses the network.
7. The method of claim 4, wherein the specific method of network interaction in step S3 is as follows: and reporting data at a fifth node on the terminal equipment, monitoring the busy state of a channel by the gateway, uploading the data reported at the fifth node to a sixth node of the network server, and immediately transmitting a reply message to the fifth node through the gateway after the sixth node receives the reported data.
8. The method of claim 4, wherein the specific method of the sleep and sleep wakeup re-exchange data in step S4 is as follows: when the fifth node of the terminal equipment has no data to send and needs to process an issuing command and then enters the dormancy state, the eighth node of the network server sends an instruction to modify the gateway and the parameters of the terminal equipment at the moment, the terminal equipment wakes up periodically to listen to the wake-up packet, and after the seventh node of the terminal equipment receives the wake-up instruction, the seventh node immediately makes an instruction response and transmits the instruction response to the eighth node of the network server through the gateway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010482689.1A CN111935723A (en) | 2020-06-01 | 2020-06-01 | Wireless data transmission terminal and transmission method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010482689.1A CN111935723A (en) | 2020-06-01 | 2020-06-01 | Wireless data transmission terminal and transmission method |
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| CN111935723A true CN111935723A (en) | 2020-11-13 |
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| CN202010482689.1A Pending CN111935723A (en) | 2020-06-01 | 2020-06-01 | Wireless data transmission terminal and transmission method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862068A (en) * | 2018-12-12 | 2019-06-07 | 四川长虹电器股份有限公司 | A kind of LORA data acquisition control system based on TDMA |
| CN109982281A (en) * | 2017-12-27 | 2019-07-05 | 上海未来宽带技术股份有限公司 | A kind of communication system and method based on LoRaWAN |
| CN111615112A (en) * | 2019-02-22 | 2020-09-01 | 北京劳拉科技有限公司 | System based on community narrow-band network coverage and use method thereof |
-
2020
- 2020-06-01 CN CN202010482689.1A patent/CN111935723A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109982281A (en) * | 2017-12-27 | 2019-07-05 | 上海未来宽带技术股份有限公司 | A kind of communication system and method based on LoRaWAN |
| CN109862068A (en) * | 2018-12-12 | 2019-06-07 | 四川长虹电器股份有限公司 | A kind of LORA data acquisition control system based on TDMA |
| CN111615112A (en) * | 2019-02-22 | 2020-09-01 | 北京劳拉科技有限公司 | System based on community narrow-band network coverage and use method thereof |
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Application publication date: 20201113 |