CN109917370A - Localization method between ships deck hand in wireless ultraviolet light secret communication - Google Patents
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Abstract
The invention discloses localization methods between ships deck hand in wireless ultraviolet light secret communication, ultraviolet R-T unit is uniformly installed on deck hand, start the ultraviolet R-T unit with all personnel, photoelectric conversion module receives the optical signal that each ultraviolet R-T unit is sent and converts optical signal into electric signal, amplification is filtered to electric signal again, it calculates and receives power, finally by receiving power calculation difference personnel's distance, then calculate by three-point fox method the position coordinates of different personnel.The positioning function of partial high-precision is realized using ultraviolet light, and it is not influenced by weather and electromagnetic interference device etc., be conducive to the communication between warship face staff and soldier, to realize communication and positioning on warship face between this personnel under various disorders object field scape, realizes that efficient ditch passes to and cope with battlefield surroundings complicated and changeable；Real time communication and operational deployment afield is ensured.
Description
Technical field
The invention belongs to ultraviolet communication method and technology fields wireless on warship face, and in particular to wireless ultraviolet light secret communication
Localization method between middle ships deck hand.
Background technique
Modern war is fast changing, tendency of the use of information mutual communication means directly concerning entire war.Since electromagnetism is dry
The weapon for disturbing aspect, can be allowed the radio communication on battlefield thoroughly to be paralysed with moment, so that can not link up between soldier, lead to me
Square army afield falls into passively situation.Validity of keeping in communication not only is needed particularly with the soldier in type aircraft carrier deck,
It also needs to confirm that mutual position facilitates arrangement combat mission.Must there are stable communication and positioning device in this case
Guarantee the cooperation of team to cope with situation fast changing on battlefield.
Present location technology has global positioning system (Global Positioning System, GPS), and Beidou is fixed
The location technologies such as position system.Because GPS technology will cause secret leakage for army, and with high costs, error is larger.Beidou
The also non-full maturity of system, and there is also biggish errors.Therefore these technologies are not suitable for this small on ships deck
The confidential corespondence of range high-precision positions.Along with the continuous development of photoelectric technology, ultraviolet Technology is constantly militarily obtained
Application is arrived.Because " day is blind " ultraviolet light (200nm-280nm) signal is afield not easy to be detected, strong antijamming capability,
And the advantage of the barrier that non-direct-view mode can be used to overcome various barriers etc..Therefore it is answered using ultraviolet Technology
To wartime environment can it is safer, more hidden, be not easy to be disturbed, can more effectively cope with the communication in wartime and position these problems.
Summary of the invention
The object of the present invention is to provide localization methods between ships deck hand in a kind of wireless ultraviolet light secret communication, solve
Existing positioning device is easy to be influenced the problem of precision reduces by weather and electromagnetic interference device etc..
The technical scheme adopted by the invention is that localization method between ships deck hand in wireless ultraviolet light secret communication,
Ultraviolet R-T unit is uniformly installed on deck hand, the ultraviolet R-T unit with all personnel, photoelectric conversion are started
Module receives the optical signal that each ultraviolet R-T unit is sent and converts optical signal into electric signal, then filters to electric signal
Wave amplification, calculates and receives power, different finally by reception power calculation difference personnel's distance, then by three-point fox method calculating
The position coordinates of personnel.
The features of the present invention also characterized in that
Ultraviolet R-T unit includes that several are ultraviolet according to the longitude and latitude duplexing hemispherical LED arranged evenly on a hemisphere
Light source, further includes omnidirectional's receiver positioned at ultraviolet R-T unit hemisphere top, and omnidirectional's receiver can be received from not Tongfang
To ultraviolet source acquisition of information other side sending node ID number, and communication LED longitude and latitude.
LED ultraviolet source wavelength is 200nm~280nm, and typical luminous power is 0.3mW.
Computing staff sets the specific steps of coordinate are as follows:
Step 1: setting the ultraviolet R-T unit on the body of one of personnel as A, the LED on ultraviolet R-T unit A is purple
Outer light source is scanned according to the alternate mode of latitude and longitude, LED ultraviolet source sending node information, and the nodal information of transmission includes
The ID of the node is numbered, the longitude and latitude for the LED which is communicated；
Step 2: setting LED ultraviolet source of the ultraviolet R-T unit with another personnel as B, on ultraviolet R-T unit B
It is scanned according to the alternate mode of latitude and longitude, omnidirectional's receiver receives the hair that the nodal information from different directions obtains other side
The ID of node is sent to number, and the LED longitude and latitude of communication；Step also is sent to using the nodal information of oneself as response message simultaneously
Omnidirectional's receiver of rapid 1 ultraviolet R-T unit A, response message include node ID number, the longitude and latitude etc. of the LED of communication；
Step 3: while the case where completing step 1, step 2 information exchange, starting to calculate distance between A and B, utilize
The formula as shown in formula (4) calculates the linear distance between A and B, and can also be as follows according to the information calculation formula of transmitting-receiving:
In formula (4), lambertw function is f (w)=w*exp (w) inverse function, i.e. w=lambertw (f (w)), wherein
Exp (w) is exponential function, and w is any plural number；PtIndicate the power sent；PrIndicate received optical power；ArIndicate photoelectric conversion
The area of receiving aperture in module；KsIndicate scattering coefficient；PsIndicate Scattering Phase Function；φ1Indicate transmitting beam angle；φ2
Indicate the field of view of receiver angle of signal receiving end；KeAtmosphere attenuation coefficien is indicated, by scattering coefficient KsWith atmosphere absorbance KaComposition
(Ke=Ks+Ka)；θ1Indicate the elevation angle of signal sending end；θ2Indicate the elevation angle of signal receiving end；
Step 4: passing through 3 steps of front, it can be deduced that the person-to-person linear distance r of A, B two1, according to same
Method, also it can be concluded that the distance between other two people C, D and B r2, r3；Obtain these apart from while, also obtained A, C, D
Respective node coordinate A (x1, y1)、C(x2, y2)、D(x3, y3), it can using the method for three-point fix according to these node coordinates
To obtain the node coordinate of B, such as formula (5):
The invention has the advantages that localization method between ships deck hand in the wireless ultraviolet light secret communication of the present invention
Advantage is the positioning function using ultraviolet light realization partial high-precision, and not by the shadow of weather and electromagnetic interference device etc.
It rings, is conducive to the communication between warship face staff and soldier, to realize on warship face various disorders object between this personnel
Communication and positioning under scene realize that efficient ditch passes to and cope with battlefield surroundings complicated and changeable；Afield real-time is ensured
Communication and operational deployment.
Detailed description of the invention
Fig. 1 localization method works principle process between ships deck hand in wireless ultraviolet light secret communication of the invention
Figure；
Fig. 2 is that the ultraviolet R-T unit of localization method is cut between ships deck hand in wireless ultraviolet light secret communication of the invention
Face figure；
Fig. 3 ultraviolet R-T unit knot of localization method between ships deck hand in wireless ultraviolet light secret communication of the invention
Composition；
The three margin knot point location side of localization method between ships deck hand in wireless ultraviolet light secret communication of the invention Fig. 4
Method schematic diagram；
Fig. 5 is the positioning principle signal of localization method between ships deck hand in wireless ultraviolet light secret communication of the invention
Figure.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Localization method between ships deck hand in wireless ultraviolet light secret communication of the invention, detailed process as shown in Figure 1,
Ultraviolet R-T unit is uniformly installed on deck hand, the ultraviolet R-T unit with all personnel, photoelectric conversion are started
Module receives the optical signal that each ultraviolet R-T unit is sent and converts optical signal into electric signal, then filters to electric signal
Wave amplification, calculates and receives power, different finally by reception power calculation difference personnel's distance, then by three-point fox method calculating
The position coordinates (as shown in Figure 5) of personnel.
Ultraviolet R-T unit includes that several are ultraviolet according to the longitude and latitude duplexing hemispherical LED arranged evenly on a hemisphere
Light source, further includes omnidirectional's receiver positioned at ultraviolet R-T unit hemisphere top, and omnidirectional's receiver can be received from not Tongfang
To ultraviolet source acquisition of information other side sending node ID number, and communication LED longitude and latitude.
LED ultraviolet source wavelength is 200nm~280nm, and typical luminous power is 0.3mW.
Computing staff sets the specific steps of coordinate are as follows:
Step 1: setting the ultraviolet R-T unit on the body of one of personnel as A, the LED on ultraviolet R-T unit A is purple
Outer light source is scanned according to the alternate mode of latitude and longitude, LED ultraviolet source sending node information, and the nodal information of transmission includes
The ID of the node is numbered, the longitude and latitude for the LED which is communicated；
Step 2: setting LED ultraviolet source of the ultraviolet R-T unit with another personnel as B, on ultraviolet R-T unit B
It is scanned according to the alternate mode of latitude and longitude, omnidirectional's receiver receives the hair that the nodal information from different directions obtains other side
The ID of node is sent to number, and the LED longitude and latitude of communication；Step also is sent to using the nodal information of oneself as response message simultaneously
Omnidirectional's receiver of rapid 1 ultraviolet R-T unit A, response message include node ID number, the longitude and latitude etc. of the LED of communication；
Step 3: while the case where completing step 1, step 2 information exchange, starting to calculate distance between A and B, utilize
The formula as shown in formula (4) calculates the linear distance between A and B, and can also be as follows according to the information calculation formula of transmitting-receiving:
In formula (4), lambertw function is f (w)=w*exp (w) inverse function, i.e. w=lambertw (f (w)), wherein
Exp (w) is exponential function, and w is any plural number；PtIndicate the power sent；PrIndicate received optical power；ArIndicate photoelectric conversion
The area of receiving aperture in module；KsIndicate scattering coefficient；PsIndicate Scattering Phase Function；φ1Indicate transmitting beam angle；φ2
Indicate the field of view of receiver angle of signal receiving end；KeAtmosphere attenuation coefficien is indicated, by scattering coefficient KsWith atmosphere absorbance KaComposition
(Ke=Ks+Ka)；θ1Indicate the elevation angle of signal sending end；θ2Indicate the elevation angle of signal receiving end；
Step 4: passing through 3 steps of front, it can be deduced that the person-to-person linear distance r of A, B two1, according to same
Method, also it can be concluded that the distance between other two people C, D and B r2, r3；Obtain these apart from while, also obtained A, C, D
Respective node coordinate A (x1, y1)、C(x2, y2)、D(x3, y3), it is fixed using 3 points shown in formula (5) according to these node coordinates
The method of position can obtain the node coordinate of B
Embodiment 1
The present invention is accurately positioned on ships deck based on wireless ultraviolet light, ultraviolet R-T unit knot used
For structure as shown in attached drawing 2 and Fig. 3, used LED type number is UVTOP255 type, peak wavelength 255nm, typical luminous power
For 0.3mW, minimum optical power 0.13mW.It is evenly spaced in hemisphere surface LED according to through broadwise, top installation omnidirectional connects
Device is received, duplexing hemispherical LED node structure is constituted.In the node, each node can independently transmitted message.
Specific localization method is as follows:
Step 1: ultraviolet R-T unit is scanned according to the alternate mode of latitude and longitude, and sending node sends information, is sent
Information include the node ID number, the longitude and latitude for the LED which is communicated；
Step 2: after completing step 1, another same ultraviolet light R-T unit according to the alternate mode of longitude and latitude into
Row scanning, the ID that omnidirectional's receiver on R-T unit top receives the sending node of the acquisition of information other side from different directions are compiled
Number, and the LED longitude and latitude of communication.The nodal information for sending oneself is also sent to previous section as response message simultaneously
Point, response message include node ID number, the longitude and latitude etc. of the LED of communication；
Step 3: while completing step 1, step 2 information exchange situation, and starting to calculate distance r, because in atmosphere
Ultraviolet light direct-view link power is exponentially decayed in free space, and atmospheric attenuation is represented byFree space path damage
Consumption and distance square are inversely proportional, i.e.,The reception gain of detector isPositioning device passes through power measurement mould
Block calculates the non-direct-view optical power for receiving UV signal source, as shown in formula (2):
In formula (2), r indicates the non-straight communication distance optionally descended between soldier, PtIndicate the power sent；PrExpression connects
Receive optical power；ArIndicate the area of receiving aperture in photoelectric conversion module；KsIndicate scattering coefficient；PsIndicate Scattering Phase Function；
φ1Indicate transmitting beam angle；φ2Indicate the field of view of receiver angle of signal receiving end；KeAtmosphere attenuation coefficien is indicated, by scattering
COEFFICIENT KsWith atmosphere absorbance KaForm (Ke=Ks+Ka)；θ1Indicate the elevation angle of signal sending end；θ2Indicate signal receiving end
The elevation angle.
By ultraviolet light received optical power formula (2) and lambertw function under the conditions of non-direct-view, under direct vision between soldier
Communication distance r, as shown in formula (3):
Formula (2) are substituted into formula (3), the distance between soldier r is obtained, as shown in formula (4):
In formula (4), lambertw function refers to f (w)=w*exp (w) inverse function, i.e. w=lambertw (f (w)),
Wherein exp (w) is exponential function, and w is any plural number；
In formula (4), Pt, Ar, Ke, Ps, φ1, φ2And KsIt is known quantity, received optical power PrIt is obtained by power measurement
Out, θ1、θ2It is measured by the three-axis sensor being installed in power measurement, r is calculated by importing formula (4)；
Step 4: according to the linear distance r between formula (4) available personnel A and personnel B1, personnel C and personnel D away from
From r2And r3.Three-point positioning method (as shown in Figure 4) is used at this time, obtains the precise position information of node B, we will be according to public affairs
Formula (5) carries out the last coordinate setting of B, finally obtains the precise position information of B.
Embodiment:
Firstly, being defined to the parameter in the present invention:
The LED illuminating source used is wavelength 255nm, and typical luminous power is 0.3mW, and minimum optical power is
0.13mW, angle of scattering are 30 degree.The ultraviolet LED semiglobe of composition, the angle between each LED is 18 degree, which has
Effect test maximum distance is 70m.
Two soldier node A and B are chosen in the present embodiment as example to describe ultraviolet light position fixing process in forest, wherein
A is the node for initiating communication, and B is the node being found.
Step 1:A generates solicited message.Each solicited message has included this node ID number, information type, broadwise/through to volume
Code, specific structure are as shown in Figure 2；
Step 2: while completing step 1, other nodes are sended over by omnidirectional's receiver reception at the top of node
Information.Due to the directive property of ultraviolet LED light beam, B node can only receive the information data that A node (2,5) direction is sent.When
B node receives the broadwise that A node is sent and when through to information, that is, can determine that information is issued from A node (2,5) direction.B
Node is sent to A node for the information of oneself as response message simultaneously, which includes this section point ID number, info class
Type, latitude are through to coding.；
Step 3: also due to the directive property of LED beam, A node can only receive the response that B node (1,1) direction is sent
Information.A node is receiving the broadwise of B node transmission and after to response message, can be confirmed that B node is located at A node (2,5) seat
On target direction, and the response message is issued by (1, the 1) direction of B node, i.e., two node of A, B has confirmed that the orientation of both sides at this time
Information.；
Step 4: starting while steps 1 and 2,3 are completed according to the carry out photoelectric conversion of receiving and used with optical power
Formula (4) is carried out apart from calculating, and formula (4) is as follows:
Obtain the linear distance between personnel；
Step 5: according to above-mentioned steps, we have obtained the linear distance between personnel, then obtain it most according to formula (5)
Whole location information, as shown in figure 5, entire positioning distance measuring process terminates,
Claims (4)
1. localization method between ships deck hand in wireless ultraviolet light secret communication, which is characterized in that ultraviolet R-T unit is united
One is installed on deck hand, starts the ultraviolet R-T unit with all personnel, and photoelectric conversion module receives each ultraviolet
The optical signal of R-T unit transmission simultaneously converts optical signal into electric signal, then is filtered amplification to electric signal, calculates and receives function
Rate finally by receiving power calculation difference personnel's distance, then calculates by three-point fox method the position coordinates of different personnel.
2. localization method, feature exist between ships deck hand in wireless ultraviolet light secret communication according to claim 1
In the ultraviolet R-T unit includes that several are ultraviolet according to the longitude and latitude duplexing hemispherical LED arranged evenly on a hemisphere
Light source, further includes omnidirectional's receiver positioned at ultraviolet R-T unit hemisphere top, and omnidirectional's receiver can be received from not
The ID of the sending node of the acquisition of information other side of equidirectional ultraviolet source is numbered, and the LED longitude and latitude of communication.
3. localization method, feature exist between ships deck hand in wireless ultraviolet light secret communication according to claim 1
In the LED ultraviolet source wavelength is 200nm~280nm, and typical luminous power is 0.3mW.
4. localization method, feature between ships deck hand in wireless ultraviolet light secret communication according to claim 2 or 3
It is, calculates the specific steps of different personnel's position coordinates are as follows:
Step 1: setting LED ultraviolet light of the ultraviolet R-T unit on the body of one of personnel as A, on ultraviolet R-T unit A
Source is scanned according to the alternate mode of latitude and longitude, and LED ultraviolet source sending node information, the nodal information of transmission includes the section
The ID number of point, the longitude and latitude for the LED which is communicated；
Step 2: set the ultraviolet R-T unit with another personnel as B, the LED ultraviolet source on ultraviolet R-T unit B according to
The alternate mode of latitude and longitude is scanned, and omnidirectional's receiver receives the transmission section that the nodal information from different directions obtains other side
The ID number of point, and the LED longitude and latitude of communication；The nodal information of oneself is also sent to step 1 as response message simultaneously
Omnidirectional's receiver of ultraviolet R-T unit A, response message include node ID number, the longitude and latitude etc. of the LED of communication；
Step 3: while the case where completing step 1, step 2 information exchange, starting to calculate distance between A and B, utilize such as formula
(4) formula shown in calculates the linear distance between A and B, and can also be as follows according to the information calculation formula of transmitting-receiving:
In formula (4), lambertw function is f (w)=w*exp (w) inverse function, i.e. w=lambertw (f (w)), wherein exp
It (w) is exponential function, w is any plural number；PtIndicate the power sent；PrIndicate received optical power；ArIndicate photoelectric conversion module
The area of upper receiving aperture；KsIndicate scattering coefficient；PsIndicate Scattering Phase Function；φ1Indicate transmitting beam angle；φ2It indicates
The field of view of receiver angle of signal receiving end；KeAtmosphere attenuation coefficien is indicated, by scattering coefficient KsWith atmosphere absorbance KaForm (Ke
=Ks+Ka)；θ1Indicate the elevation angle of signal sending end；θ2Indicate the elevation angle of signal receiving end；
Step 4: passing through 3 steps of front, it can be deduced that the person-to-person linear distance r of A, B two1, according to same method,
Also it can be concluded that the distance between other two people C, D and B r2, r3；Obtain these apart from while, it is respective also to have obtained A, C, D
Node coordinate A (x1, y1)、C(x2, y2)、D(x3, y3), the side of three-point fix shown in formula (5) is utilized according to these node coordinates
Method can obtain the node coordinate of B
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082863A (en) * | 2019-12-24 | 2020-04-28 | 西安工程大学 | Ultraviolet light mobile ad hoc network bilateral node positioning method |
| CN112910559A (en) * | 2021-02-03 | 2021-06-04 | 西安理工大学 | Wireless ultraviolet light covert communication system and method for unmanned aerial vehicle auxiliary fleet |
| CN114527426A (en) * | 2020-11-06 | 2022-05-24 | 西安理工大学 | Emergency positioning system and positioning method based on ultraviolet beacon |
| CN114374982B (en) * | 2022-01-05 | 2023-12-19 | 上海船舶运输科学研究所有限公司 | Antenna arrangement method for deck area of container ship |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363918A (en) * | 2008-08-12 | 2009-02-11 | 阎锋 | Method for positioning and identifying objects by solar blind UV |
| CN103278798A (en) * | 2013-05-23 | 2013-09-04 | 中国舰船研究设计中心 | Three-dimensional calibration method for ship-borne personnel position |
| US20160159446A1 (en) * | 2014-12-04 | 2016-06-09 | Anthony W. Covelli | Emergency beacon |
| CN106019211A (en) * | 2016-05-12 | 2016-10-12 | 西安工程大学 | Tank positioning communication system based on wireless ultraviolet light and communication method thereof |
| US20180012498A1 (en) * | 2015-01-15 | 2018-01-11 | Nanjing University 5D Technology Co., Ltd. | Auxiliary berthing method and system for vessel |
| CN206975206U (en) * | 2017-07-17 | 2018-02-06 | 浙江天衡五维电子科技有限公司 | A kind of ultraviolet search and rescue system of day total blindness |
| CN108802681A (en) * | 2018-04-19 | 2018-11-13 | 江苏理工学院 | A kind of visible light localization method and positioning system based on more receiving terminals |
| CN108873932A (en) * | 2018-06-13 | 2018-11-23 | 西安理工大学 | Unmanned plane bee colony attack guidance system and bootstrap technique based on wireless ultraviolet light |
-
2019
- 2019-02-26 CN CN201910142124.6A patent/CN109917370A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363918A (en) * | 2008-08-12 | 2009-02-11 | 阎锋 | Method for positioning and identifying objects by solar blind UV |
| CN103278798A (en) * | 2013-05-23 | 2013-09-04 | 中国舰船研究设计中心 | Three-dimensional calibration method for ship-borne personnel position |
| US20160159446A1 (en) * | 2014-12-04 | 2016-06-09 | Anthony W. Covelli | Emergency beacon |
| US20180012498A1 (en) * | 2015-01-15 | 2018-01-11 | Nanjing University 5D Technology Co., Ltd. | Auxiliary berthing method and system for vessel |
| CN106019211A (en) * | 2016-05-12 | 2016-10-12 | 西安工程大学 | Tank positioning communication system based on wireless ultraviolet light and communication method thereof |
| CN206975206U (en) * | 2017-07-17 | 2018-02-06 | 浙江天衡五维电子科技有限公司 | A kind of ultraviolet search and rescue system of day total blindness |
| CN108802681A (en) * | 2018-04-19 | 2018-11-13 | 江苏理工学院 | A kind of visible light localization method and positioning system based on more receiving terminals |
| CN108873932A (en) * | 2018-06-13 | 2018-11-23 | 西安理工大学 | Unmanned plane bee colony attack guidance system and bootstrap technique based on wireless ultraviolet light |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082863A (en) * | 2019-12-24 | 2020-04-28 | 西安工程大学 | Ultraviolet light mobile ad hoc network bilateral node positioning method |
| CN114527426A (en) * | 2020-11-06 | 2022-05-24 | 西安理工大学 | Emergency positioning system and positioning method based on ultraviolet beacon |
| CN112910559A (en) * | 2021-02-03 | 2021-06-04 | 西安理工大学 | Wireless ultraviolet light covert communication system and method for unmanned aerial vehicle auxiliary fleet |
| CN114374982B (en) * | 2022-01-05 | 2023-12-19 | 上海船舶运输科学研究所有限公司 | Antenna arrangement method for deck area of container ship |
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Application publication date: 20190621 |