CN108233958A - A kind of communication means, communication device, communication equipment and buoy - Google Patents
A kind of communication means, communication device, communication equipment and buoy Download PDFInfo
- Publication number
- CN108233958A CN108233958A CN201711440782.0A CN201711440782A CN108233958A CN 108233958 A CN108233958 A CN 108233958A CN 201711440782 A CN201711440782 A CN 201711440782A CN 108233958 A CN108233958 A CN 108233958A
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- CN
- China
- Prior art keywords
- wake
- communication
- receiving channel
- communication equipment
- optimal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B1/0483—Transmitters with multiple parallel paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
- H01Q21/293—Combinations of different interacting antenna units for giving a desired directional characteristic one unit or more being an array of identical aerial elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/247—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching by switching different parts of a primary active element
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/401—Circuits for selecting or indicating operating mode
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention discloses a kind of communication means, communication device, communication equipment and buoy.A kind of communication means, includes the following steps：Optimal transmission channel is obtained according to multiple wake-up instructions；Echo signal is emitted by the optimal transmission channel.In the communication means of the present invention, communication device, communication equipment and buoy, control unit obtains optimal transmission channel according to multiple wake-up instructions, transmitter unit emits echo signal by the optimal transmission channel, so that the larger wave beam of gain is wider, and without increasing complicated alignment and servo-drive system, so that communication apparatus construction is simple, it is of low cost, communication distance and reliability increase, easy to spread.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of communication means, communication device, communication equipment and buoys.
Background technology
Oceanographic buoy is a kind of oceanographic observation equipment of modernization, it is anchored or swims on sea, round-the-clock, complete
It when automatic collection, analysis, storage and the various oceanographic observation data of forwarding.Oceanographic buoy passes through wireless channel and satellite, sea
Foreign research vessel, marine information floating platform, bank base/island base communication base station connection together constitute the marine monitoring system in China.
Communication mode is divided into three categories used by oceanographic buoy：Satellite communication, land mobile network and radio
Communication.Satellite communication such as marine satellite, Beidou satellite navigation system, Argo satellite navigation systems, iridium satellite mobile communication system
Deng, land mobile network such as CMDA, GPRS, 3G, radio communication is such as VHF, UHF waveband communication.Wherein, it defends
Star communication is suitable for off-lying sea communication, and land mobile network and radio communication are suitable for marine near, moderate distance communication.
Since buoy is anchored or is floated across the sea, the Antenna+Transmitter installed thereon is by space, height, power consumption
And the limitation of the adverse circumstances such as stormy waves.Due to buoy position, posture, the uncertainty of angle, buoy wireless communication usually makes
Use omnidirectional antenna.And omnidirectional antenna have wider beam angle and relatively low gain, limit wireless communication distance and can
By property.Under the premise of transmission power is not increased, directional aerial may be used to obtain higher gain.But buoy is made in stormy waves
It can jolt, rotate under so that directional aerial narrow beam is difficult to be aligned with communication party, seriously reduces communication quality.At this point,
Complicated alignment and servo-drive system are must be equipped with, so that communication equipment is complicated.
Invention content
In view of this, the purpose of the present invention is to provide a kind of communication means, communication device, communication equipment and buoys, use
It is carried out wireless communication with solving existing buoy using broad beam, low gain omnidirectional antenna, leads to that communication distance is short, reliability is low
Problem.
In order to achieve the above objectives, on the one hand, the present invention uses following technical scheme：
A kind of communication means, includes the following steps：
S01, optimal transmission channel is obtained according to multiple wake-up instructions；
S02, echo signal is emitted by the optimal transmission channel.
Preferably, the multiple wake-up instruction receives to obtain by a plurality of receiving channel respectively；
Preferably, it is according to the method that multiple wake-up instructions obtain optimal transmission channel：
Optimal receiving channel is obtained according to multiple wake-up instructions；
Optimal transmission channel is obtained according to optimal receiving channel；
Preferably, it is according to the method that multiple wake-up instructions obtain optimal receiving channel：
The wake-up that the wake-up instruction obtained according to every receiving channel obtains signal amplitude maximum instructs, by signal amplitude most
The receiving channel of big wake-up instruction is as optimal receiving channel.
In order to achieve the above objectives, on the other hand, the present invention uses following technical scheme：
A kind of communication device, including transmitter unit and control unit,
Described control unit is used to obtain optimal transmission channel according to multiple wake-up instructions；
The transmitter unit is used to emit echo signal by the optimal transmission channel.
Preferably, the communication device further includes receiving unit, and the receiving unit is used to connect by a plurality of receiving channel
The multiple wake up is received to instruct；
Preferably, described control unit is according to the method that multiple wake-up instructions obtain optimal transmission channel：
Described control unit obtains optimal receiving channel according to multiple wake-up instructions；
Described control unit obtains optimal transmission channel according to optimal receiving channel.
Preferably, described control unit is according to the method that multiple wake-up instructions obtain optimal receiving channel：
The wake-up that the wake-up instruction that described control unit is obtained according to every receiving channel obtains signal amplitude maximum instructs,
The receiving channel that the maximum wake-up of signal amplitude is instructed is as optimal receiving channel.
In order to achieve the above objectives, in addition, the present invention uses following technical scheme：
A kind of communication equipment employs communication means described above.
Preferably, the communication equipment includes emission element, receiving part, converter and processor, the emission element
Including a transmitter, the receiving part includes multiple receivers, and the converter includes mutiple antennas, each reception
Machine and an antenna connection, the transmitter are selectively connected from the different antennas.
Preferably, the communication equipment further includes switching switch, and each receiver and the transmitter pass through one
Switching switch is connect with an antenna, and the switching switch causes the antenna switches between the transmitter and receiver to connect
It is logical.
Preferably, the communication equipment further includes connecting valve, and the transmitter is opened by connecting valve and the switching
Connection connects；
Preferably, the switching switch includes duplexer.
Preferably, the arrangement mode of multiple antennas is：
The multiple antenna element is into cylinder；Or,
The multiple antenna element is into hemispherical.
In order to achieve the above objectives, the present invention also uses following technical scheme：
A kind of buoy including buoy float, carries the communication equipment on the buoy float.
In the communication means of the present invention, communication device, communication equipment and buoy, control unit is instructed according to multiple wake-ups
To optimal transmission channel, transmitter unit emits echo signal by the optimal transmission channel, so that the larger wave beam of gain
It is wider, and without increasing complicated alignment and servo-drive system, so that communication apparatus construction is simple, of low cost, communication
Distance and reliability increase, easy to spread.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from.
Fig. 1 be in the specific embodiment of the invention antenna element into cylindrical structure diagram；
Fig. 2 be in the specific embodiment of the invention antenna element into hemispheric structure diagram；
Fig. 3 be in the specific embodiment of the invention antenna element into wave beam vertical view during cylindrical or hemispherical；
Fig. 4 be in the specific embodiment of the invention antenna element into wave beam plan view during hemispherical；
Fig. 5 is communication apparatus construction block diagram in the specific embodiment of the invention；
Fig. 6 is working condition transition diagram in the specific embodiment of the invention.
In figure：
1st, processor；
2nd, emission element；21st, transmitter；
3rd, receiving part；31st, receiver；
4th, switching switch；41st, duplexer；
5th, connecting valve；
6th, converter；61st, antenna.
Specific embodiment
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Attached drawing is provided to the purpose of explanation, and attached drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise throughout the specification and claims " comprising ", "comprising" etc. are similar
Word should be construed to the meaning included rather than exclusive or exhaustive meaning；That is, it is containing for " including but not limited to "
Justice.
The present invention provides a kind of communication means, as shown in fig. 6, including the following steps：
The first step：Optimal transmission channel is obtained according to multiple wake-up instructions；Second step：It is sent out by the optimal transmission channel
Penetrate echo signal.
The multiple wake-up instruction receives to obtain by a plurality of receiving channel respectively, the multiple to wake up instruction as signal width
Degree is different, the identical signal of carrying information, it is preferable that the multiple same signal warp for waking up instruction as docking communication party's transmitting
A plurality of receiving channel receives to obtain.Preferably, it is according to the method that multiple wake-up instructions obtain optimal transmission channel：Basis first
Multiple wake-up instructions obtain optimal receiving channel, secondly obtain optimal transmission channel according to optimal receiving channel.Preferably, according to
It is multiple wake up instruction obtain optimal receiving channel methods be：The wake-up obtained according to every receiving channel instructs to obtain signal width
The maximum wake-up instruction of degree, the receiving channel that the maximum wake-up of signal amplitude is instructed is as optimal receiving channel.Wherein, signal
The wake-up instruction of amplitude maximum is determined by matched filtering than width method.
The present invention provides a kind of communication device, and including transmitter unit and control unit, described control unit is used for according to more
A wake-up instruction obtains optimal transmission channel, the multiple to wake up instruction as signal amplitude difference, the identical signal of carrying information,
Preferably, the multiple same signal for instructing and emitting for docking communication party that wakes up receives to obtain through a plurality of receiving channel, described
Transmitter unit is used to emit echo signal by the optimal transmission channel.The communication device further includes receiving unit, described
Receiving unit is used to receive the multiple wake-up instruction by a plurality of receiving channel；
Preferably, described control unit is according to the method that multiple wake-up instructions obtain optimal transmission channel：It is described first
Control unit obtains optimal receiving channel according to multiple wake-up instructions, and secondly described control unit is obtained according to optimal receiving channel
Optimal transmission channel.It is further preferred that described control unit obtains the method for optimal receiving channel according to multiple wake-up instructions
For：The wake-up that the wake-up instruction that described control unit is obtained according to every receiving channel obtains signal amplitude maximum instructs, and will believe
The receiving channel of the maximum wake-up instruction of number amplitude is as optimal receiving channel.Wherein, the wake-up instruction of signal amplitude maximum is logical
Overmatching filtering is determined than width method.
The present invention also provides a kind of communication equipments, employ communication means described above.
The communication equipment includes emission element 2, receiving part 3, converter 6 and processor 1, as shown in figure 5, the hair
It penetrates component 2 and includes a transmitter 21, the receiving part 3 includes multiple receivers 31, the transmitter 21 and multiple receptions
Machine 31 and the processor 3 connect, and the converter 6 includes mutiple antennas 61, and the antenna is preferably directional aerial, Mei Geding
There is relatively narrow beam angle to antenna, the half power points of the wave beam of the adjacent antenna is overlapped, and forms continuous space angle.
Each receiver 31 and an antenna 61 connect, and the transmitter 21 selectively connects from the different antennas 61
It connects, at this point, the antenna 61 is for receiving, and for emitting, the communication equipment further includes switching switch 4, it is preferable that institute
It states switching switch 4 and includes duplexer 41.Each receiver 31 and the transmitter 21 pass through a switching switch 4 and one
The antenna 61 connects, and the switching switch 4 is so that the antenna 61 is switched between transmitter 21 and receiver 31, such as
This, the 61 time division emission echo signal of antenna or reception wake up instruction.
A kind of specific embodiment that the transmitter 21 is selectively connected from the different antennas 61 is, described logical
Letter equipment further includes connecting valve 5, and the transmitter 21 is connect by connecting valve 5 with the switching switch 4, and the connection is opened
5 are closed for so that the transmitter 21 is connected with one of switching switch 4.
Preferably, the arrangement mode of multiple antennas 61 is：The multiple antenna 61 is arranged into cylinder or described
Mutiple antennas 61 is arranged into hemispherical.
As shown in Figure 1, when multiple directional aerials 61 are arranged into cylinder, as shown in figure 3, its wave beam formed is in level
360 degree of circle distributions on direction, at this point, the antenna 61 has relatively narrow horizontal beam, wider vertical beam, advantage
It is when the communication equipment rotates, to be directed at interfaced communication party there are one antenna 61 always, that is, the communication
Equipment can utilize multiple directional aerials to receive the wake-up from multiple directions and instruct, and the processor 1 is further according to multiple wake-ups
The parameter of instruction obtains optimal wake up and instructs, and the optimal transmitting mesh of antenna 61 for waking up instruction is obtained so as to which order transmitter 21 utilizes
Signal is marked, so that will not be because of the wave of the directional aerial of transmitting echo signal even with directional aerial transmitting echo signal
Beam is relatively narrow, and so that the effect of communication party's reception echo signal of the docking communication equipment is poor.
As shown in Fig. 2, when multiple directional aerials are arranged into hemispherical, as shown in figure 3, its wave beam formed is in level side
Upward 360 degree of circle distributions, at this point, the antenna 61 has relatively narrow horizontal beam and vertical beam, as shown in figure 4, its shape
Into wave beam 90 degree of radiation profiles, advantage are in vertical direction, when the communication equipment rotates and when pitch,
Always it is directed at interfaced communication party there are one antenna 61, that is, the communication equipment can utilize multiple directional aerials to receive
Wake-up instruction from multiple directions, the processor 1 obtain optimal wake up further according to multiple parameters for waking up instruction and instruct, from
And order transmitter 21 emits echo signal using the antenna for obtaining optimal wake-up instruction, so that even with directional aerial
Emitting echo signal will not be relatively narrow because of the wave beam of the directional aerial of transmitting echo signal, and causes the docking communication equipment
The effect that communication party receives echo signal is poor.
In the communication equipment of the present invention, the antenna 61 includes state to be received, reception state and emission state, the day
When line 61 is in reception state, the communication equipment, which receives, wakes up instruction, and when the antenna is in emission state, the communication is set
Preparation penetrates echo signal, and the antenna 61 is in state to be received, and the communication equipment, which does not receive to wake up to instruct, does not also emit mesh
Mark signal.In state to be received when the antenna 61 is flat, connect when the antenna 61 is switched to reception state from state to be subjected
It receives after waking up instruction, optimal receiving channel is obtained by calculation in the communication equipment, then transmitter is controlled to pass through optimal transmitting
Channel emission echo signal at this point, the antenna 61 is switched to emission state from reception state, when transmitting end of data, is realized
Data transmission, the antenna 61 come back to state to be received.
The present invention also provides a kind of buoys, and including buoy float, communication equipment described above is carried on the buoy float.It is excellent
Selection of land is also carried on the buoy float for providing the solar charging electric equipment of electric energy to the communication equipment, for remote
The satellite equipment of transmission.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For, the present invention can have various modifications and changes.All any modifications made within spirit and principles of the present invention are equal
Replace, improve etc., it should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of communication means, which is characterized in that include the following steps：
S01, optimal transmission channel is obtained according to multiple wake-up instructions；
S02, echo signal is emitted by the optimal transmission channel.
2. communication means according to claim 1, which is characterized in that the multiple wake-up instruction passes through a plurality of reception respectively
Channel reception obtains；
Preferably, it is according to the method that multiple wake-up instructions obtain optimal transmission channel：
Optimal receiving channel is obtained according to multiple wake-up instructions；
Optimal transmission channel is obtained according to optimal receiving channel；
Preferably, it is according to the method that multiple wake-up instructions obtain optimal receiving channel：
The wake-up that the wake-up instruction obtained according to every receiving channel obtains signal amplitude maximum instructs, signal amplitude is maximum
The receiving channel of instruction is waken up as optimal receiving channel.
3. a kind of communication device, including transmitter unit and control unit, which is characterized in that
Described control unit is used to obtain optimal transmission channel according to multiple wake-up instructions；
The transmitter unit is used to emit echo signal by the optimal transmission channel.
4. communication device according to claim 3, which is characterized in that further include receiving unit, the receiving unit is used for
The multiple wake up is received by a plurality of receiving channel to instruct；
Preferably, described control unit is according to the method that multiple wake-up instructions obtain optimal transmission channel：
Described control unit obtains optimal receiving channel according to multiple wake-up instructions；
Described control unit obtains optimal transmission channel according to optimal receiving channel.
Preferably, described control unit is according to the method that multiple wake-up instructions obtain optimal receiving channel：
The wake-up that the wake-up instruction that described control unit is obtained according to every receiving channel obtains signal amplitude maximum instructs, and will believe
The receiving channel of the maximum wake-up instruction of number amplitude is as optimal receiving channel.
5. a kind of communication equipment, which is characterized in that employ the communication means as described in one of claim 1-2.
6. communication equipment according to claim 5, which is characterized in that the communication equipment includes emission element, receiving part
Part, converter and processor, the emission element include a transmitter, and the receiving part includes multiple receivers, described
Converter includes mutiple antennas, each receiver and an antenna connection, the transmitter selectively with difference
The antenna connection.
7. communication equipment according to claim 6, which is characterized in that the communication equipment further includes switching switch, each
The receiver and the transmitter are connect by a switching switch with an antenna, and the switching switch causes described
Antenna is switched between the transmitter and receiver.
8. communication equipment according to claim 6, which is characterized in that the communication equipment further includes connecting valve, described
Transmitter is connect by connecting valve with the switching switch；
Preferably, the switching switch includes duplexer.
9. communication equipment according to claim 8, which is characterized in that the arrangement mode of multiple antennas is：
The multiple antenna element is into cylinder；Or,
The multiple antenna element is into hemispherical.
10. a kind of buoy, including buoy float, which is characterized in that carrying is as described in one of claim 5-9 on the buoy float
Communication equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440782.0A CN108233958A (en) | 2017-12-27 | 2017-12-27 | A kind of communication means, communication device, communication equipment and buoy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711440782.0A CN108233958A (en) | 2017-12-27 | 2017-12-27 | A kind of communication means, communication device, communication equipment and buoy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108233958A true CN108233958A (en) | 2018-06-29 |
Family
ID=62648002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711440782.0A Pending CN108233958A (en) | 2017-12-27 | 2017-12-27 | A kind of communication means, communication device, communication equipment and buoy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108233958A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273869A (en) * | 2018-09-29 | 2019-01-25 | 维沃移动通信有限公司 | A kind of antenna system and mobile terminal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258138A (en) * | 1998-10-29 | 2000-06-28 | 松下电器产业株式会社 | Radio communication device and transmitting antenna changing method |
| CN102810219A (en) * | 2011-05-31 | 2012-12-05 | 中兴通讯股份有限公司 | Label transaction method and system based on radio frequency identification |
| EP2802092A1 (en) * | 2013-05-06 | 2014-11-12 | ATLAS Elektronik GmbH | System and method for seafloor exploration |
| CN104333887A (en) * | 2013-07-22 | 2015-02-04 | 昀阳科技有限公司 | Method for controlling wireless network device to carry out network connection |
| CN206402224U (en) * | 2017-01-22 | 2017-08-11 | 广东欧珀移动通信有限公司 | NFC antenna component and terminal device |
-
2017
- 2017-12-27 CN CN201711440782.0A patent/CN108233958A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1258138A (en) * | 1998-10-29 | 2000-06-28 | 松下电器产业株式会社 | Radio communication device and transmitting antenna changing method |
| CN102810219A (en) * | 2011-05-31 | 2012-12-05 | 中兴通讯股份有限公司 | Label transaction method and system based on radio frequency identification |
| EP2802092A1 (en) * | 2013-05-06 | 2014-11-12 | ATLAS Elektronik GmbH | System and method for seafloor exploration |
| CN104333887A (en) * | 2013-07-22 | 2015-02-04 | 昀阳科技有限公司 | Method for controlling wireless network device to carry out network connection |
| CN206402224U (en) * | 2017-01-22 | 2017-08-11 | 广东欧珀移动通信有限公司 | NFC antenna component and terminal device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109273869A (en) * | 2018-09-29 | 2019-01-25 | 维沃移动通信有限公司 | A kind of antenna system and mobile terminal |
| CN109273869B (en) * | 2018-09-29 | 2021-01-08 | 维沃移动通信有限公司 | Antenna system and mobile terminal |
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Application publication date: 20180629 |