CN109194379B - Wireless relay system and wireless relay communication method - Google Patents
Wireless relay system and wireless relay communication method Download PDFInfo
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- CN109194379B CN109194379B CN201810991869.5A CN201810991869A CN109194379B CN 109194379 B CN109194379 B CN 109194379B CN 201810991869 A CN201810991869 A CN 201810991869A CN 109194379 B CN109194379 B CN 109194379B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15507—Relay station based processing for cell extension or control of coverage area
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15521—Ground-based stations combining by calculations packets received from different stations before transmitting the combined packets as part of network coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15542—Selecting at relay station its transmit and receive resources
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Abstract
The invention discloses a wireless repeater, which comprises a communication unit for receiving and transmitting information data, an address coding unit, a storage unit, a judgment unit and a time setting unit, wherein the address coding unit is used for receiving and transmitting information data; the address coding unit is used for coding an address of the information data, the storage unit is used for storing the information data received last time, the time setting unit is used for setting information forwarding time of the communication unit, the judging unit is used for judging whether the information data received this time is the same as the information data in the storage unit or not, if so, the communication unit does not forward the received information data, and if not, the communication unit forwards the received information data after the set information forwarding time. The wireless repeater has the functions of data judgment and data forwarding time setting, and a relay system formed by the wireless repeater has the advantages of reliable work and capability of working under the condition that one or more wireless repeaters even break down.
Description
Technical Field
The present invention relates to wireless communication technologies, and in particular, to a wireless relay system and a relay communication method.
Background
In the tunnel construction or mine communication process, usually, long-distance data transmission is needed, because there is no signal at the communication terminal such as mobile phone in the tunnel and communication can not be performed, and the cost of wire communication realized by arranging wires is increased, therefore, the existing technology is to perform signal transmission through wireless communication equipment and repeaters, the distance between two adjacent wireless repeaters in the existing wireless repeater system is the radius distance of the signal coverage range, so that only one wireless repeater is in the signal coverage radius, when one or more wireless repeaters are in failure, the whole wireless repeater system can not perform signal transmission, and if a plurality of existing wireless repeaters are arranged in the signal coverage range of the wireless repeater, signal transmission disorder is caused, and communication failure is caused.
Disclosure of Invention
The invention provides a wireless relay, a relay system and a relay method aiming at the problems, wherein the relay system has the advantages of reliable information transmission and capability of continuing communication after one or more wireless relays have faults.
The technical means adopted by the invention are as follows:
a wireless relay system comprising a plurality of wireless relays;
the wireless repeater includes a plurality of wireless communication units,
a communication unit for transceiving information data;
an address encoding unit for address encoding the wireless repeater;
a storage unit for storing the information data received last time;
a time setting unit for setting the information transfer time of the communication unit;
a judging unit for judging whether the received information data is the same as the information data in the storage unit, if so, the communication unit does not forward the received information data, and if not, the communication unit forwards the received information data after the set information forwarding time;
each of the wireless repeaters has a different address code and the information forwarding time of each wireless repeater is set to a different value, and the distance between two adjacent wireless repeaters is less than or equal to 1/2 of the radius of the signal coverage area of the wireless repeater.
A wireless relay communication method comprises the wireless relay system of the invention, and the specific steps are as follows:
arranging a plurality of wireless repeaters in the wireless relay system in sequence, wherein the distance between two adjacent wireless repeaters is less than or equal to 1/2 of the radius of the signal coverage area of the wireless repeaters;
setting an address code of each of the wireless repeaters to a different value by an address coding unit;
setting, by a time setting unit, an information forwarding time of a communication unit of each of the wireless repeaters to different values;
the judging unit compares the information data received this time by the communication unit with the information data received last time stored in the storage unit, judges whether the information data received this time is the same as the information data received last time stored in the storage unit, if so, the communication unit does not forward the received information data, and if not, the communication unit forwards the received information data after the set information forwarding time and stores the information data received this time in the storage unit.
Compared with the prior art, the wireless repeater has the following beneficial effects: 1. the wireless repeater is provided with a storage unit, a judging unit and a time setting unit, can judge and forward the received information data, and can avoid the communication failure caused by the chaos of the forwarded data; 2. the relay system formed by the wireless relays can realize the networking again to finish the communication when one or more relays have faults, thereby ensuring the smooth completion of the communication.
Drawings
FIG. 1 is a block diagram of a wireless repeater according to the present disclosure;
FIG. 2 is a block diagram of a wireless relay system disclosed herein;
fig. 3 is a schematic diagram illustrating the operation of the wireless relay system according to the present invention when one of the wireless relays is damaged, in which the wireless relay No. 2 is damaged;
FIG. 4 is a flow chart of a communication method of a wireless relay disclosed in the present invention;
fig. 5 is a schematic structural diagram of a wireless relay system in the prior art.
In the figure: 10. communication unit, 11, storage unit, 12, judging unit, 13, time setting unit, 14 and address coding unit.
Detailed Description
As shown in fig. 1, the wireless repeater disclosed in the present invention comprises a communication unit 10 for transmitting and receiving information, an address encoding unit 14, a storage unit 11, a judgment unit 12 and a time setting unit 13; the address coding unit 14 is configured to code an address of the wireless repeater, the storage unit 11 is configured to store information data received last time, the time setting unit 13 is configured to set an information forwarding time of the communication unit 10, the determining unit 12 is configured to determine whether the information data received this time is the same as the information data in the storage unit 11, if the information data received this time is the same as the information data in the storage unit 11, the communication unit 10 does not forward the received information data, and if the information data received this time is different from the information data in the storage unit 11, the communication unit 10 forwards the received information data after the set information forwarding time.
As shown in FIG. 2, the disclosed wireless relay system comprises a plurality of wireless relays, in this embodiment, 7 wireless relays are shared, and sequentially set as No. 1 and No. 2 … … 7 wireless relays through an address encoding unit, the information transfer time of each wireless relay is also set to different values, for example, the information transfer time of No. 1 wireless relay is set to 1t, the information transfer time of No. 2 wireless relay is set to 7t of No. 2t … … 7 wireless relay, t is a set unit time, the distance between two adjacent wireless relays is smaller than or equal to 1/2 of the radius of the signal coverage area of the wireless relay, in this embodiment, as shown in FIG. 2, the distance between two adjacent wireless relays is 1/3 of the signal coverage radius (i.e., the wireless relay has No. 2 within the signal coverage of No. 1 wireless relay, No. 3 and No. 4 wireless repeaters, and similarly, No. 2 wireless repeater has No. 3, No. 4 and No. 5 wireless repeaters in signal coverage, and so on). In this embodiment, a plurality of wireless repeaters are arranged linearly to be applicable to engineering construction fields such as tunnel, it can also adopt other modes such as netted arranging simultaneously.
As shown in fig. 4, the process of performing information communication by using the wireless relay system disclosed by the present invention is as follows: the transmission source transmits information data to a plurality of wireless repeaters in a signal coverage area, the repeater receiving the information data judges and stores the received information, if the information data received this time is the same as the information data received last time, the repeater does not forward the received information data, and if the information data received this time is different from the information data received last time, the repeater forwards the received information data. In the present embodiment, the wireless repeater No. 1 is set as a transmission source to transmit signals, and it is set that the whole wireless repeater system has not transmitted any information data before, after the wireless repeater No. 1 transmits information data, the wireless repeaters No. 2, No. 3 and No. 4 within the signal coverage of the wireless repeater No. 1 receive information data transmitted from the wireless repeater No. 1, and after the wireless repeaters No. 2, No. 3 and No. 4 receive information data, the information data is compared with the information data of the storage unit by the determination unit (the last received data is stored in the storage unit, and when data reception and forwarding are not performed, the set initial value is stored therein), and the data received this time is stored in the storage unit for determination when the information data is received next time, in the present embodiment, since data forwarding is performed for the first time, therefore, the wireless repeaters No. 2, No. 3 and No. 4 all judge that the information data received at the time is different from the information data received at the last time, and therefore the wireless repeaters No. 2, No. 3 and No. 4 all forward the information data after receiving the information data, because the information forwarding time of the wireless repeaters No. 2, No. 3 and No. 4 is different, and the information forwarding time of the wireless repeater No. 2 is shortest to 2t, therefore, the wireless repeater No. 2 forwards the information data after delaying for 2t, at this time, the wireless repeaters No. 3, No. 4 and No. 5 receive the signals forwarded by the wireless repeater No. 2, the wireless repeaters No. 3, No. 4 and No. 5 receive the information forwarded by the wireless repeater No. 2 and compare with the information data received at the last time, because the wireless repeaters No. 3 and No. 4 receive the information data forwarded by the wireless repeater No. 1, therefore, when receiving the data transferred by the wireless relay No. 2, it is determined that the data is the same as the data received last time (the information data transmitted by the wireless relay No. 1), and therefore, the wireless relays No. 3 and No. 4 do not transfer the information data transmitted by the wireless relay No. 2, but at this time, the wireless relays No. 3 and No. 4 also have the information data transmitted from the wireless relay No. 1, and therefore, after the wireless relay No. 1 has transmitted the information data for 3t, the wireless relay No. 3 transfers the information data received from the wireless relay No. 1, and the wireless relay No. 4 transfers the information data transmitted by the wireless relay No. 1 after the wireless relay No. 1 has transmitted the information data for 4 t. After the No. 2 wireless repeater forwards the signal forwarded by the No. 1 wireless repeater, because the No. 5 wireless repeater does not receive any data information before, the No. 5 wireless repeater forwards the information data after delaying for 5t after receiving the information data forwarded by the No. 2 wireless repeater, and so on until the whole system completes information transmission.
As shown in fig. 3, in the present embodiment, it is assumed that the wireless relay 2 fails, when the wireless relay 1 forwards information data, the wireless relay 2 fails and does not forward signals, the wireless relays 3 and 4 still receive forwarding information, and the wireless relays 3 and 4 determine and forward the received information data, which is the same as the information forwarding process in fig. 2, so that the reliability of information data forwarding is ensured.
Fig. 5 shows a wireless relay system in the prior art, which also has a plurality of wireless relays, and the distance between every two wireless relays is the radius of the signal coverage of the wireless relays, so when one or more of the wireless relays fails, the whole relay system cannot transmit information. On the other hand, if a plurality of wireless repeaters are built in the radius of the signal coverage as shown in fig. 2, since the conventional wireless repeaters do not have the information determining unit and the time setting unit, the plurality of wireless repeaters simultaneously receive the information data to be forwarded and all forward the data, which causes communication disorder of the whole wireless repeater system and communication failure.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. A wireless relay system, characterized by: comprising a plurality of wireless repeaters;
the wireless repeater includes a plurality of wireless communication units,
a communication unit for transceiving information data;
an address encoding unit for address encoding the wireless repeater;
a storage unit for storing the information data received last time;
a time setting unit for setting the information transfer time of the communication unit;
a judging unit for judging whether the received information data is the same as the information data in the storage unit, if so, the communication unit does not forward the received information data, and if not, the communication unit forwards the received information data after the set information forwarding time;
each of the wireless repeaters has a different address code and the information forwarding time of each wireless repeater is set to a different value, and the distance between two adjacent wireless repeaters is less than or equal to 1/2 of the radius of the signal coverage area of the wireless repeater.
2. A wireless relay communication method comprising the wireless relay system as claimed in claim 1, characterized in that: the method comprises the following specific steps:
arranging a plurality of wireless repeaters in the wireless relay system in sequence, wherein the distance between two adjacent wireless repeaters is less than or equal to 1/2 of the radius of the signal coverage area of the wireless repeaters;
setting an address code of each of the wireless repeaters to a different value by an address coding unit;
setting, by a time setting unit, an information forwarding time of a communication unit of each of the wireless repeaters to different values;
the judging unit compares the information data received this time by the communication unit with the information data received last time stored in the storage unit, judges whether the information data received this time is the same as the information data received last time stored in the storage unit, if so, the communication unit does not forward the received information data, and if not, the communication unit forwards the received information data after the set information forwarding time and stores the information data received this time in the storage unit.
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| CN110493799B (en) * | 2019-07-17 | 2022-11-08 | 视联动力信息技术股份有限公司 | Underground communication method, device and storage medium |
| CN111245497B (en) * | 2020-01-10 | 2022-06-03 | 展讯通信（上海）有限公司 | Relay control method, relay control system, electronic device, and storage medium |
| CN111784888B (en) * | 2020-07-21 | 2022-05-17 | 上海华虹计通智能系统股份有限公司 | Synchronization method and system of split type vehicle-mounted personnel positioning equipment |
| CN112333806B (en) * | 2020-11-11 | 2023-02-24 | 大连金盛义电子科技有限公司 | Tunnel wireless redundant relay ring network system unit and system |
| CN113067763B (en) * | 2020-11-24 | 2022-07-01 | 国网浙江余姚市供电有限公司 | High-reliability mountain area distribution network communication system and communication method thereof |
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Denomination of invention: A wireless relay system and wireless relay communication method Effective date of registration: 20220708 Granted publication date: 20201225 Pledgee: Industrial and Commercial Bank of China Limited Dalian high tech Park sub branch Pledgor: DALIAN KINSENYI ELECTRON TECHNOLOGY CO.,LTD. Registration number: Y2022980010185 |