CN115297517A - Roaming switching method for mine Wi-Fi6 wireless communication system - Google Patents
Roaming switching method for mine Wi-Fi6 wireless communication system Download PDFInfo
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- CN115297517A CN115297517A CN202211045886.2A CN202211045886A CN115297517A CN 115297517 A CN115297517 A CN 115297517A CN 202211045886 A CN202211045886 A CN 202211045886A CN 115297517 A CN115297517 A CN 115297517A
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- 238000004891 communication Methods 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 239000003245 coal Substances 0.000 claims abstract description 10
- 238000000060 site-specific infrared dichroism spectroscopy Methods 0.000 claims abstract description 4
- 238000005065 mining Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
- H04W36/0085—Hand-off measurements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area 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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- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention relates to a roaming switching method of a mine Wi-Fi6 wireless communication system, which belongs to the field of mine communication and comprises the following steps: s1: the Wi-Fi6 base stations are continuously arranged along a coal mine roadway, and two adjacent base stations are set with different communication frequencies; s2: setting the same SSID and authentication modes for the Wi-Fi6 base stations, and using different IP addresses; s3: the communication terminal uses a fixed IP address to wirelessly communicate with the Wi-Fi6 base station, continuously receives and sends data packets during the moving process of the communication terminal under the base station, continuously detects and scans the surrounding Wi-Fi6 base stations, when the communication terminal is positioned in a signal overlapping area of the base station x and the base station y, the signal of the base station x is gradually weakened, the signal of the base station y is gradually strengthened, when the signal intensity of the base station y reaches a preset threshold value, the communication terminal starts to be connected with the base station y, and when the communication terminal normally communicates with the base station y, the connection of the base station x is disconnected, and transmission communication is reestablished.
Description
Technical Field
The invention belongs to the field of mining communication, and relates to a roaming switching method of a mining Wi-Fi6 wireless communication system.
Background
In intelligent mine construction, the communication technology plays a central role in longitudinal through and transverse linkage. A wireless communication system with high bandwidth, low time delay, wide connection and high reliability is the foundation of intelligent mine construction.
Wi-Fi6 is a sixth generation wireless Wi-Fi technology, adopts multi-user multiple input multiple output (MU-MIMO) and Orthogonal Frequency Division Multiple Access (OFDMA) technologies similar to 5G, and can be used for intelligent mine broadband wireless communication. The mining 5G has the advantages of high transmission rate, small transmission delay, high call quality and the like, but the system is complex and the cost is high; the mining Wi-Fi has the advantages of high transmission rate, simple system, low cost and the like, is widely applied to the coal mine industry, but has no real-time roaming switching mechanism and restricts the development of the mining Wi-Fi.
Disclosure of Invention
In view of the above, the present invention is directed to a roaming handover method for a Wi-Fi6 wireless communication system for mining.
In order to achieve the purpose, the invention provides the following technical scheme:
a roaming switching method of a mining Wi-Fi6 wireless communication system comprises the following steps:
s1: the Wi-Fi6 base stations are continuously arranged along a coal mine roadway, and two adjacent base stations are set with different communication frequencies;
s2: setting the same SSID and authentication modes for the Wi-Fi6 base stations, and using different IP addresses;
s3: the communication terminal uses a fixed IP address to wirelessly communicate with the Wi-Fi6 base station, the communication terminal continuously receives and transmits data packets in the moving process under the base station, the surrounding Wi-Fi6 base stations are continuously detected and scanned, when the communication terminal is positioned in a signal overlapping area of the base station x and the base station y, the signal of the base station x is gradually weakened, the signal of the base station y is gradually strengthened, when the signal intensity of the base station y reaches a preset threshold value, the connection with the base station y is started, and when the communication with the base station y is normal, the connection of the base station x is disconnected, and the transmission communication is reestablished.
Furthermore, the communication terminal adopts SIP/RTP communication protocol when voice and video transmission is carried out, standard SIP/RTP client software is installed on the communication terminal, standard SIP/RTP soft switching server software is installed on the voice server, the communication terminal accesses a base station through Wi-Fi6 wireless signals, then the base station is forwarded to a wired network, and the base station reaches the voice server through the wired network, and then the base station reaches other communication terminals through the wired wireless network after being switched by the voice server.
Furthermore, the communication terminal adopts UDP mode transmission when SIP/RTP communication is carried out, the communication terminal continuously receives and transmits voice packets with the voice server in the moving process under the base station, and normal conversation is kept through transfer of the voice server.
Further, the communication terminal adopts a TCP mode for transmission during data communication, continuously receives and transmits data packets during the moving process of the communication terminal under the base station, and simultaneously detects whether the data packets are normally received and transmitted through a TCP mechanism and adopts a retransmission mechanism.
Further, a working mode of 1, 6 and 11 fixed channels is adopted, the communication terminal only scans the 1, 6 and 11 channels, and the Wi-Fi6 base stations are arranged at intervals of the 1, 6 and 11 communication channels.
The invention has the beneficial effects that: the method divides the coal mine tunnel into a plurality of channel units, and each channel unit is not repeatedly covered. The communication terminal scans a fixed communication channel and can perform roaming switching rapidly. The method has the characteristics of simple algorithm, clear thought, convenience in installation and maintenance and the like.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a network topology diagram of a Wi-Fi6 wireless communication system in a coal mine;
fig. 2 is a schematic diagram of voice, video and data transmission of the communication terminal;
FIG. 3 is a schematic diagram of Wi-Fi6 wireless base station signal repetition coverage;
FIG. 4 is a diagram of neighboring Wi-Fi6 wireless base stations using different channels;
fig. 5 is a schematic diagram of Wi-Fi6 wireless base station using 1, 6, 11 signals.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, shown in the drawings are schematic representations and not in the form of actual drawings; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and the specific meaning of the terms described above will be understood by those skilled in the art according to the specific circumstances.
The invention provides a roaming switching method of a Wi-Fi6 wireless communication system for a mine, which is suitable for a Wi-Fi6 wireless communication system under a coal mine.
As shown in figure 1, the whole Wi-Fi6 wireless communication system under the coal mine mainly comprises a data service server, a voice service server, a network management service platform, a dispatching server, a dispatching desk, a relay gateway, an industrial ring network, a Wi-Fi6 wireless communication base station and a Wi-Fi6 wireless communication terminal. The high-speed transmission of voice, video and data of the Wi-Fi6 wireless communication terminal is mainly realized. All equipment of the mining Wi-Fi6 wireless communication system use the same network segment address, and all the equipment can be ensured to be communicated with each other.
As shown in FIG. 3, wi-Fi6 base stations are arranged continuously along a coal mine roadway. The coverage radius of Wi-Fi signals in the underground coal mine is 300-400 meters, and one Wi-Fi6 base station is arranged every 500 meters in consideration of the communication quality of a roadway. In the middle of two base stations, there is a signal overlapping area inevitably, and in consideration of signal interference, two adjacent base stations are designed with different communication frequencies, as shown in fig. 4.
The Wi-Fi6 base station sets the same SSID and authentication mode and uses different IP addresses. And ensuring that the communication terminal can be accessed across areas. The communication terminal can uniquely communicate in the whole Wi-Fi6 wireless communication system by using a fixed IP address.
The communication terminal mainly realizes high-speed transmission of voice, video and data. In the method, voice and video are classified into real-time transmission, UDP mode communication is adopted, data is classified into reliable transmission, and TCP mode communication is adopted.
The schematic diagram of voice, video and data transmission of the communication terminal is shown in fig. 2. When the communication terminals transmit data, the data are transmitted in a TCP mode, the two communication terminals are communicated with the data server respectively, and the data are converted through the data server.
The communication terminal adopts a standard SIP/RTP communication protocol when carrying out voice and video transmission, standard SIP/RTP client software is installed on the communication terminal, and standard SIP/RTP soft switch server software is installed on the voice server. The communication terminal accesses the base station through Wi-Fi6 wireless signals, then forwards the signals to the wired network, reaches the voice server through the wired network, exchanges the signals through the voice server, and then reaches other communication terminals through the wired wireless network, so that the purpose of communicating with other terminals is achieved.
The communication terminal adopts UDP mode transmission when SIP/RTP communication is carried out. The communication terminal continuously receives and transmits voice packets with the voice server in the moving process of the base station, normal conversation is kept through transfer of the voice server, and whether the voice packets are successfully received and transmitted is not detected in order to guarantee the real-time performance of voice. And at the same time, the Wi-Fi6 base stations around are continuously detected and scanned, and when the Wi-Fi6 base stations are in a signal overlapping area of the base station 1 and the base station 2, two signals are necessarily scanned. When the signal of the base station 1 is weaker and weaker, the signal of the base station 2 is stronger and stronger, and the signal threshold value reaches the preset value. Starting the base station 2 connection, and disconnecting the base station 1 connection after the base station 2 communication is normal. In the switching process, the UDP transmission mode can well and rapidly switch the voice and video roaming to the base station 2. Therefore, the purpose of fast roaming switching of the voice of the communication terminal is achieved.
The communication terminal transmits data in a TCP manner when performing data communication. The communication terminal continuously receives and transmits data packets in the moving process under the base station, and simultaneously detects whether the data packets are normally received and transmitted or not through a TCP mechanism, and adopts a necessary retransmission mechanism. And at the same time, the Wi-Fi6 base stations around are continuously detected and scanned, and when the Wi-Fi6 base stations are in a signal overlapping area of the base station 1 and the base station 2, two signals are necessarily scanned. When the signal of the base station 1 is weaker and weaker, the signal of the base station 2 is stronger and stronger, and the signal threshold value reaches the preset value. Starting the connection of the base station 2, disconnecting the TCP connection after the communication of the base station 2 is normal, disconnecting the connection of the base station 1, reestablishing the TCP connection, and continuously receiving and transmitting the data packet. Therefore, the purpose of fast roaming and switching of communication terminal data is achieved.
As shown in fig. 5, in order to reduce the time for the communication terminal to detect and scan the Wi-Fi6 base stations around and accelerate the roaming switching speed, the invention adopts the working mode of 1, 6, 11 fixed channels, and the communication terminal only scans the 1, 6, 11 channels, thereby greatly shortening the scanning roaming switching time. Meanwhile, wi-Fi6 base stations are arranged at intervals according to communication channels 1, 6 and 11, so that different channels in wireless signal overlapping areas are ensured, and meanwhile, the wireless frequency points are large in interval and the problem of adjacent frequency interference does not exist.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A roaming switching method of a mining Wi-Fi6 wireless communication system is characterized in that: the method comprises the following steps:
s1: the Wi-Fi6 base stations are continuously arranged along a coal mine roadway, and two adjacent base stations are set with different communication frequencies;
s2: setting the same SSID and authentication modes for the Wi-Fi6 base stations, and using different IP addresses;
s3: the communication terminal uses a fixed IP address to wirelessly communicate with the Wi-Fi6 base station, continuously receives and sends data packets during the moving process of the communication terminal under the base station, continuously detects and scans the surrounding Wi-Fi6 base stations, when the communication terminal is positioned in a signal overlapping area of the base station x and the base station y, the signal of the base station x is gradually weakened, the signal of the base station y is gradually strengthened, when the signal intensity of the base station y reaches a preset threshold value, the communication terminal starts to be connected with the base station y, and when the communication terminal normally communicates with the base station y, the connection of the base station x is disconnected, and transmission communication is reestablished.
2. The method of claim 1, wherein the method comprises: the communication terminal adopts SIP/RTP communication protocol when voice and video transmission is carried out, standard SIP/RTP client software is installed on the communication terminal, standard SIP/RTP soft switching server software is installed on the voice server, the communication terminal is accessed to the base station through Wi-Fi6 wireless signals and then forwarded to a wired network, reaches the voice server through the wired network, and is switched through the voice server and then is sent to other communication terminals through the wired wireless network.
3. The mining Wi-Fi6 wireless communication system roaming handover method of claim 2, wherein: the communication terminal adopts UDP mode transmission when SIP/RTP communication is carried out, the communication terminal continuously receives and transmits voice packets with the voice server in the moving process under the base station, and normal conversation is kept through transfer of the voice server.
4. The method of claim 1, wherein the method comprises: the communication terminal adopts a TCP mode for transmission during data communication, continuously receives and transmits data packets during the moving process of the communication terminal under the base station, and simultaneously detects whether the data packets are normally received and transmitted through a TCP mechanism and adopts a retransmission mechanism.
5. The method of claim 1, wherein the method comprises: the working mode of 1, 6 and 11 fixed channels is adopted, the communication terminal only scans the 1, 6 and 11 channels, and the Wi-Fi6 base stations are arranged at intervals of the 1, 6 and 11 communication channels.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211045886.2A CN115297517A (en) | 2022-08-30 | 2022-08-30 | Roaming switching method for mine Wi-Fi6 wireless communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211045886.2A CN115297517A (en) | 2022-08-30 | 2022-08-30 | Roaming switching method for mine Wi-Fi6 wireless communication system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152781A (en) * | 2013-03-26 | 2013-06-12 | 天地（常州）自动化股份有限公司 | Method for automatically roaming and switching mining SIP (Session Initiation Protocol) mobile terminal among mining wireless base stations |
| CN103889014A (en) * | 2014-04-08 | 2014-06-25 | 中国矿业大学(北京) | Multi-mode mine wireless communication gateway and switching method |
| CN205545977U (en) * | 2016-03-30 | 2016-08-31 | 湖北三宁矿业有限公司 | Portable radio communication basic station |
| WO2017070797A1 (en) * | 2015-10-30 | 2017-05-04 | Investel Capital Corporation | Data network access selection, migration and quality management systems and methods |
| CN212910056U (en) * | 2020-08-28 | 2021-04-06 | 大连智仁智矿科技有限公司 | Mining wireless communication system based on 5G/Wi-Fi technology |
-
2022
- 2022-08-30 CN CN202211045886.2A patent/CN115297517A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152781A (en) * | 2013-03-26 | 2013-06-12 | 天地（常州）自动化股份有限公司 | Method for automatically roaming and switching mining SIP (Session Initiation Protocol) mobile terminal among mining wireless base stations |
| CN103889014A (en) * | 2014-04-08 | 2014-06-25 | 中国矿业大学(北京) | Multi-mode mine wireless communication gateway and switching method |
| WO2017070797A1 (en) * | 2015-10-30 | 2017-05-04 | Investel Capital Corporation | Data network access selection, migration and quality management systems and methods |
| CN205545977U (en) * | 2016-03-30 | 2016-08-31 | 湖北三宁矿业有限公司 | Portable radio communication basic station |
| CN212910056U (en) * | 2020-08-28 | 2021-04-06 | 大连智仁智矿科技有限公司 | Mining wireless communication system based on 5G/Wi-Fi technology |
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