CN103580759A - Visible light communication receiving device for fully automatically tracking light source - Google Patents
Visible light communication receiving device for fully automatically tracking light source Download PDFInfo
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- CN103580759A CN103580759A CN201310566061.XA CN201310566061A CN103580759A CN 103580759 A CN103580759 A CN 103580759A CN 201310566061 A CN201310566061 A CN 201310566061A CN 103580759 A CN103580759 A CN 103580759A
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Abstract
The invention discloses a visible light communication receiving device for fully automatically tracking a light source. The visible light communication receiving device comprises a cylindrical carrier, three light detection units, a cradle head and a main control and storage unit. The cylindrical carrier is provided with three cylindrical through holes which form an angle of 120 degrees with one another. The three light detection units are arranged in the three cylindrical through holes respectively, and each light detection unit comprises a detector tray, a visible light detector, a light filter and a convergent lens. The cradle head comprises a vertical elevation control stepping motor and a horizontal rotation control stepping motor and is connected with the cylindrical carrier through a gear. The error rates of visible light signals received by the three visible light detectors are calculated and compared, and therefore the three light detection units in the cylindrical carrier can steer to one visible light direction with the lowest error rate. According to the visible light communication receiving device for fully automatically tracking the light source, the three photoelectric detectors are used for detecting received light signals, the direction with the highest communication quality is determined, the receiving faces of the light detection units face the light source all the time, the signals are received on an orthoptic link, and the communication quality of a visible light communication system is improved.
Description
Technical field
The present invention relates to visible light communication technical field, especially relate to a kind of visible light communication receiving system of full-automatic tracking light source.
Background technology
Indoor visible light communication is a kind of novel optical communication technique, and this utilization LED is as illumination and the light source of communicating by letter, and wherein RGB-LED can realize the parallel signal transmission of multiple color, thereby can significantly improve system communication speed.But in communication process, existing receiver generally can only be placed in the very little horizontal extent in light source below, and be placed on fixing height, if exceed this scope, receiver can not correctly carry out the reception of signal, and this has greatly limited the mobility of receiver and the practicality of visible light communication system.
Summary of the invention
(1) technical problem that will solve
In view of this, main purpose of the present invention is to provide a kind of visible light communication receiving system of full-automatic tracking light source, by real-time detection, automatic rotation, can realize receiver and light source and remain direct-view link, effectively overcome the problem of receiving system mobility deficiency, greatly improved reliability and the communication speed of communication, and simple in structure, cost is low, can realize extensive use.
(2) technical scheme
For achieving the above object, the invention provides a kind of visible light communication receiving system of full-automatic tracking light source, this device comprises:
Cylindrical vector, this cylindrical vector has three cylindrical holes that are mutually 120 degree, the central axis of these three cylindrical holes is parallel to the central axis of this cylindrical vector, and these three cylindrical holes include first paragraph and second segment, the diameter of first paragraph is less than the diameter of second segment, and the length of first paragraph is greater than the length of second segment;
Three photo detecting units, be arranged at respectively in these three cylindrical holes, each photo detecting unit includes a detector pallet, a visible-light detector, a filter and a convergent lens, wherein visible-light detector is fixed on detector pallet, and moves in the first paragraph of this cylindrical hole by the screw being spirally connected with detector pallet; Filter and convergent lens are fixed in the second segment of this cylindrical hole, and the visible light signal coming from the outside enters visible-light detector by convergent lens and filter successively;
The Cloud Terrace, comprises vertical elevation angle control step motor and horizontally rotates control step motor, this vertical elevation angle control step motor with horizontally rotate control step motor and be connected with this cylindrical vector by gear; And
Master control and memory cell, by holding wire, be connected in three visible-light detectors and vertical elevation angle control step motors in three photo detecting units and horizontally rotate control step motor, calculate and the error rate of the visible light signal that relatively these three visible-light detectors receive, and horizontally rotate control step motor and carry out vertical and horizontally rotate three photo detecting units realizing in this cylindrical vector and turn to the direction that the error rate is low by controlling this vertical elevation angle control step motor and this.
(3) beneficial effect
From such scheme, can find out, the present invention has following beneficial effect:
1, the visible light communication receiving system of full-automatic tracking light source provided by the invention, three visible-light detectors are surveyed respectively the flashlight of three kinds of colors by different filters, can realize the parallel receive of signal; The signal that main control board detects by analyzing visible-light detector, adjust the vertical and level angle of The Cloud Terrace, make visible-light detector all the time towards light source, on direct-view link, receive signal, obviously reduced multipath effect and the impact to received signal of other light source that indoor reflection causes, the mobility of communication speed and receiver is improved greatly.
2, the visible light communication receiving system of full-automatic tracking light source provided by the invention, by screw, regulate the distance between visible-light detector and convergent lens, can make visible-light detector surface be positioned at convergent lens focal length place, detect stronger signal, three photodetectors are positioned at the different spaces of cylindrical vector, have reduced to a great extent the interference of three coloured light after mating plate after filtration.
3, the visible light communication receiving system of full-automatic tracking light source provided by the invention, polychromatic light parallel transmission can be realized higher communication speed.
Accompanying drawing explanation
Fig. 1 (a) and Fig. 1 (b) are the structural representations of visible light communication receiving system of the full-automatic tracking light source of the embodiment of the present invention;
Fig. 2 is the structural representation of screw and detector pallet and visible-light detector in the visible light communication receiving system of full-automatic tracking light source of the embodiment of the present invention;
Fig. 3 is the first paragraph of cylindrical hole in the visible light communication receiving system of full-automatic tracking light source of the embodiment of the present invention and second segment is the structural representation while immobilizing at the diameter of second segment;
Fig. 4 is first paragraph and the structural representation of second segment when the diameter of second segment is even variation of cylindrical hole in the visible light communication receiving system of full-automatic tracking light source of the embodiment of the present invention;
Fig. 5 is the vertical elevation angle control step motor of The Cloud Terrace in the visible light communication receiving system of full-automatic tracking light source of the embodiment of the present invention and the structural representation that horizontally rotates control step motor and cylindrical vector;
Fig. 6 is the algorithm flow chart of visible light communication receiving system of the full-automatic tracking light source of the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
As shown in Fig. 1 (a) and Fig. 1 (b), Fig. 1 (a) and Fig. 1 (b) are the structural representations of the visible light communication receiving system of full-automatic tracking light source provided by the invention, and this device comprises cylindrical vector, three photo detecting units, The Cloud Terrace and master controls and memory cell.Wherein:
With reference to Fig. 1 (a) and Fig. 1 (b), this cylindrical vector has three cylindrical holes that are mutually 120 degree, the central axis of these three cylindrical holes is parallel to the central axis of this cylindrical vector, and these three cylindrical holes include first paragraph and second segment, the diameter of first paragraph is less than the diameter of second segment, and the length of first paragraph is greater than the length of second segment.
Three photo detecting units are arranged at respectively in these three cylindrical holes, each photo detecting unit includes a detector pallet, a visible-light detector, a filter and a convergent lens, wherein visible-light detector is fixed on detector pallet, and moves in the first paragraph of this cylindrical hole by the screw being spirally connected with detector pallet; Filter and convergent lens are fixed in the second segment of this cylindrical hole, and the visible light signal coming from the outside enters visible-light detector by convergent lens and filter successively.
As shown in Figure 2, the part that label is 1 is screw, and one end of screw is anti-slip veins, and the other end has a plurality of grooves, can be fixed by collar, and there is screw thread at middle part; Label is that 2 part is cylindrical vector, in the cylindrical hole that three are mutually 120 degree in this cylindrical vector, be placed with detector pallet, on detector pallet, be fixed with visible-light detector, can regulate this position of detector pallet in cylindrical hole by screw, filter is between convergent lens and visible-light detector and be close to convergent lens, and filter and convergent lens are fixing by cylindrical hole second segment inwall clamping.
Filter in these three photo detecting units is respectively red, green or blue color filter, and the visible light signal coming from the outside is successively by after convergent lens and filter, and three visible-light detectors receive respectively red, green or blue visible light signal.
In these three photo detecting units, by rotary screw, regulate the position of detector pallet in cylindrical hole first paragraph, thereby regulate the distance between visible-light detector and convergent lens, make visible-light detector surface be positioned at convergent lens focal length place.
The diameter of this cylindrical hole second segment can be changeless, can be also even variation.When the diameter of this cylindrical hole second segment is while being changeless, as shown in Figure 3, this cylindrical hole first paragraph and second segment junction have a step, the diameter of this detector pallet and this visible-light detector is Φ 1, the diameter of this filter and this convergent lens is Φ 2, and Φ 1 < Φ 2.When the diameter of this cylindrical hole second segment be even variation time, as shown in Figure 4, the diameter that starts this second segment from this cylindrical hole first paragraph and second segment junction evenly becomes large gradually, the diameter of this detector pallet and this visible-light detector is Φ 1, the diameter of this filter is Φ 2, the diameter of this convergent lens is Φ 3, and Φ 1 < Φ 2≤Φ 3.
The Cloud Terrace comprises vertical elevation angle control step motor and horizontally rotates control step motor, this vertical elevation angle control step motor with horizontally rotate control step motor and be connected with this cylindrical vector by gear, as shown in Figure 5.The vertical elevation limits of this The Cloud Terrace is 0～α, and the scope of α is 70 °～90 °, and horizontally rotating angle excursion is 0～β, and the scope of β is 200 °～360 °.
Master control and memory cell, by holding wire, be connected in three visible-light detectors and vertical elevation angle control step motors in three photo detecting units and horizontally rotate control step motor, calculate and the error rate of the visible light signal that relatively these three visible-light detectors receive, and horizontally rotate control step motor and carry out vertical and horizontally rotate three photo detecting units realizing in this cylindrical vector and turn to the visible ray direction that the error rate is low by controlling this vertical elevation angle control step motor and this.
This master control and memory cell horizontally rotate control step motor and carry out vertical and horizontal rotary and transfer and realize the vertical of this cylindrical vector and horizontally rotate by controlling this vertical elevation angle control step motor and this.As shown in Figure 1, this cylindrical vector is arranged in this The Cloud Terrace main body, this master control and memory cell are arranged in the pedestal of this The Cloud Terrace, and this master control and memory cell are connected in this vertical elevation angle control step motor by holding wire and this horizontally rotates control step motor.
This master control and memory cell comprise main control board and memory cell, and this main control board is fixed in The Cloud Terrace pedestal, by wire, are connected in visible-light detector, vertical elevation angle control step motor and are horizontally rotated control step motor; Memory cell is fixed on main control board.This memory cell comprises nonvolatile memory and volatile memory, and wherein nonvolatile memory is used for the initial settings information of storing The Cloud Terrace, and volatile memory is for the real-time result of calculation of the error rate of storing received signal.
The present invention is for realizing full-automatic tracking RGB-LED light source direct-view direction, and concrete implementation step as shown in Figure 6, is described below:
Step 1: the visible light communication receiving system that starts full-automatic tracking light source provided by the invention, according to the initial setting up in presupposed information memory cell, The Cloud Terrace is carried out to initialization: 1. the vertical elevation angle of The Cloud Terrace is set to a larger angle γ, as 70 °, horizontal direction is rotated to maximum angle from 0 °, the error rate BER of the signal that three visible-light detectors of a low-angle Δ θ calculating of every rotation receive in this short time, deposit the volatile memory of memory cell in, after rotating a circle, calculate each constantly average error rate angle θ m hour, calculate that the difference of The Cloud Terrace current location θ and θ m is corresponding horizontally rotates the step number n1 that stepping motor need to rotate, rotating water ordinary telegram machine, make The Cloud Terrace go to θ m position.
2. control vertical rotary stepping motor make The Cloud Terrace at 0 ° to rotating between maximum angle once, low-angle of every rotation
calculate the error rate BER of the signal that three visible-light detectors receive in this short time, deposit the volatile memory of memory cell in.When The Cloud Terrace from minimum angles, rotate in the vertical direction maximum angle once, calculate average error rate angle hour
calculate The Cloud Terrace current location
with
the corresponding vertical elevation angle of the difference control step motor step number n2 that need to rotate, rotate vertical elevation angle control step motor, The Cloud Terrace is gone to
position.
Step 2: the time Δ T1 that interval is set, calculate the error rate of the light signal that three visible-light detectors receive, if wherein certain is higher than threshold value B ER0, calculative determination goes out the detector of error rate minimum in three visible-light detectors.Calculate two step numbers that stepping motor need to rotate, make The Cloud Terrace to a little amplitude of detector direction rotation of error rate minimum.
Step 3: the time Δ T2 that interval is set, Δ T2 < Δ T1 wherein, other step in repeating step 2 except setting cycle, until the error rate of the signal that three visible-light detectors receive is all less than BER0.
By performing step 1, step 2 and step 3, realize cylindrical vector and aim at RGB-LED light source and keep the real-time tracking to light source, visible-light detector and light source are in looking at link straight.
Three visible-light detectors need to be surveyed three kinds of light signals of red, green, blue, common visible-light detector all has wider wavelength response range, be difficult to distinguish the light of these three kinds of nearlyer wavelength, so load respective color and big or small filter between each convergent lens and visible-light detector.By screw, can regulate the distance between convergent lens and visible-light detector, make visible-light detector surface be positioned at convergent lens focal length place.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a visible light communication receiving system for full-automatic tracking light source, is characterized in that, this device comprises:
Cylindrical vector, this cylindrical vector has three cylindrical holes that are mutually 120 degree, the central axis of these three cylindrical holes is parallel to the central axis of this cylindrical vector, and these three cylindrical holes include first paragraph and second segment, the diameter of first paragraph is less than the diameter of second segment, and the length of first paragraph is greater than the length of second segment;
Three photo detecting units, be arranged at respectively in these three cylindrical holes, each photo detecting unit includes a detector pallet, a visible-light detector, a filter and a convergent lens, wherein visible-light detector is fixed on detector pallet, and moves in the first paragraph of this cylindrical hole by the screw being spirally connected with detector pallet; Filter and convergent lens are fixed in the second segment of this cylindrical hole, and the visible light signal coming from the outside enters visible-light detector by convergent lens and filter successively;
The Cloud Terrace, comprises vertical elevation angle control step motor and horizontally rotates control step motor, this vertical elevation angle control step motor with horizontally rotate control step motor and be connected with this cylindrical vector by gear; And
Master control and memory cell, by holding wire, be connected in three visible-light detectors and vertical elevation angle control step motors in three photo detecting units and horizontally rotate control step motor, calculate and the error rate of the visible light signal that relatively these three visible-light detectors receive, and horizontally rotate control step motor and carry out vertical and horizontally rotate three photo detecting units realizing in this cylindrical vector and turn to the visible ray direction that the error rate is low by controlling this vertical elevation angle control step motor and this.
2. the visible light communication receiving system of full-automatic tracking light source according to claim 1, it is characterized in that, filter in these three photo detecting units is respectively red, green or blue color filter, the visible light signal coming from the outside is successively by after convergent lens and filter, and three visible-light detectors receive respectively red, green or blue visible light signal.
3. the visible light communication receiving system of full-automatic tracking light source according to claim 1, it is characterized in that, in these three photo detecting units, by rotary screw, regulate the position of detector pallet in cylindrical hole first paragraph, thereby regulate the distance between visible-light detector and convergent lens, make visible-light detector surface be positioned at convergent lens focal length place.
4. the visible light communication receiving system of full-automatic tracking light source according to claim 1, it is characterized in that, this master control and memory cell horizontally rotate control step motor and carry out vertical and horizontal rotary and transfer and realize the vertical of this cylindrical vector and horizontally rotate by controlling this vertical elevation angle control step motor and this.
5. the visible light communication receiving system of full-automatic tracking light source according to claim 4, it is characterized in that, this cylindrical vector is arranged in this The Cloud Terrace main body, this master control and memory cell are arranged in the pedestal of this The Cloud Terrace, and this master control and memory cell are connected in this vertical elevation angle control step motor by holding wire and this horizontally rotates control step motor.
6. the visible light communication receiving system of full-automatic tracking light source according to claim 1, it is characterized in that, the vertical elevation limits of this The Cloud Terrace is 0～α, and the scope of α is 70 °～90 °, horizontally rotating angle excursion is 0～β, and the scope of β is 200 °～360 °.
7. the visible light communication receiving system of full-automatic tracking light source according to claim 1, it is characterized in that, this master control and memory cell comprise main control board and memory cell, this main control board is fixed in The Cloud Terrace pedestal, by wire, is connected in visible-light detector, vertical elevation angle control step motor and is horizontally rotated control step motor; Memory cell is fixed on main control board.
8. the visible light communication receiving system of full-automatic tracking light source according to claim 7, it is characterized in that, this memory cell comprises nonvolatile memory and volatile memory, wherein nonvolatile memory is used for the initial settings information of storing The Cloud Terrace, and volatile memory is for the real-time result of calculation of the error rate of storing received signal.
9. the visible light communication receiving system of full-automatic tracking light source according to claim 1, it is characterized in that, the diameter of this cylindrical hole first paragraph is changeless, and the length of first paragraph is greater than the length of second segment, and the diameter of first paragraph is less than the diameter of second segment.
10. the visible light communication receiving system of full-automatic tracking light source according to claim 9, is characterized in that, the diameter of this cylindrical hole second segment is changeless, or even variation;
When the diameter of this cylindrical hole second segment is while being changeless, this cylindrical hole first paragraph and second segment junction have a step, the diameter of this detector pallet and this visible-light detector is Φ 1, the diameter of this filter and this convergent lens is Φ 2, and Φ 1 < Φ 2;
When the diameter of this cylindrical hole second segment be even variation time, the diameter that starts this second segment from this cylindrical hole first paragraph and second segment junction evenly becomes large gradually, the diameter of this detector pallet and this visible-light detector is Φ 1, the diameter of this filter is Φ 2, the diameter of this convergent lens is Φ 3, and Φ 1 < Φ 2≤Φ 3.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957060A (en) * | 2014-05-21 | 2014-07-30 | 中国人民解放军信息工程大学 | Visible light receiving device and visible light communication method |
| CN104168061A (en) * | 2014-08-21 | 2014-11-26 | 中国科学院半导体研究所 | Visible light communication device capable of automatically capturing light based on three-rod supporting type rotary table |
| CN107621831A (en) * | 2017-08-25 | 2018-01-23 | 东南大学 | Light source tracking device and its tracing light source method |
| CN107682079A (en) * | 2017-09-25 | 2018-02-09 | 深圳市新岸通讯技术有限公司 | A kind of method for being used to control optics regulation from motion tracking FSO equipment |
| CN108267770A (en) * | 2018-03-20 | 2018-07-10 | 中国医学科学院放射医学研究所 | A kind of measurement stent for leakage rediation under medical accelerator head |
| CN110324083A (en) * | 2019-07-05 | 2019-10-11 | 深圳市莱法照明通信科技有限公司 | Optical communication network receiver |
| CN110453619A (en) * | 2019-06-27 | 2019-11-15 | 罗亨远 | A kind of smart city management mark information indicating equipment |
| CN111092655A (en) * | 2019-12-19 | 2020-05-01 | 汪扬帆 | High-speed modulation visible light communication system |
| WO2023040228A1 (en) * | 2021-09-17 | 2023-03-23 | 湖北文理学院 | Visible light positioning assisted multi-user light communication system and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002073835A1 (en) * | 2001-03-13 | 2002-09-19 | Optical Crossing, Inc. | Transceiver for free-space optical communication system |
| US20090123156A1 (en) * | 2007-11-08 | 2009-05-14 | Jae-Seung Son | Method and apparatus for receiving visible light signal in a visible light communication system |
| CN202486369U (en) * | 2012-02-16 | 2012-10-10 | 深圳市新岸通讯技术有限公司 | Adjusting device |
| CN103384172A (en) * | 2013-06-28 | 2013-11-06 | 中国航天科技集团公司第五研究院第五一三研究所 | Laser wireless energy transfer communication and tracking integrating system and method |
-
2013
- 2013-11-14 CN CN201310566061.XA patent/CN103580759B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002073835A1 (en) * | 2001-03-13 | 2002-09-19 | Optical Crossing, Inc. | Transceiver for free-space optical communication system |
| US20090123156A1 (en) * | 2007-11-08 | 2009-05-14 | Jae-Seung Son | Method and apparatus for receiving visible light signal in a visible light communication system |
| CN202486369U (en) * | 2012-02-16 | 2012-10-10 | 深圳市新岸通讯技术有限公司 | Adjusting device |
| CN103384172A (en) * | 2013-06-28 | 2013-11-06 | 中国航天科技集团公司第五研究院第五一三研究所 | Laser wireless energy transfer communication and tracking integrating system and method |
Non-Patent Citations (1)
| Title |
|---|
| G.COSSU等: "3.4 Gbit/s visible optical wireless transmission based on RGB LED", 《OPTICS EXPRESS》, vol. 20, no. 26, 4 December 2012 (2012-12-04) * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957060A (en) * | 2014-05-21 | 2014-07-30 | 中国人民解放军信息工程大学 | Visible light receiving device and visible light communication method |
| CN103957060B (en) * | 2014-05-21 | 2017-04-12 | 中国人民解放军信息工程大学 | Visible light receiving device and visible light communication method |
| CN104168061A (en) * | 2014-08-21 | 2014-11-26 | 中国科学院半导体研究所 | Visible light communication device capable of automatically capturing light based on three-rod supporting type rotary table |
| CN104168061B (en) * | 2014-08-21 | 2017-04-19 | 中国科学院半导体研究所 | Visible light communication device capable of automatically capturing light based on three-rod supporting type rotary table |
| CN107621831A (en) * | 2017-08-25 | 2018-01-23 | 东南大学 | Light source tracking device and its tracing light source method |
| CN107682079A (en) * | 2017-09-25 | 2018-02-09 | 深圳市新岸通讯技术有限公司 | A kind of method for being used to control optics regulation from motion tracking FSO equipment |
| CN108267770A (en) * | 2018-03-20 | 2018-07-10 | 中国医学科学院放射医学研究所 | A kind of measurement stent for leakage rediation under medical accelerator head |
| CN110453619A (en) * | 2019-06-27 | 2019-11-15 | 罗亨远 | A kind of smart city management mark information indicating equipment |
| CN110324083A (en) * | 2019-07-05 | 2019-10-11 | 深圳市莱法照明通信科技有限公司 | Optical communication network receiver |
| CN110324083B (en) * | 2019-07-05 | 2022-09-02 | 深圳市莱法照明通信科技有限公司 | Optical communication network receiver |
| CN111092655A (en) * | 2019-12-19 | 2020-05-01 | 汪扬帆 | High-speed modulation visible light communication system |
| CN111092655B (en) * | 2019-12-19 | 2021-03-05 | 汪扬帆 | High-speed modulation visible light communication system |
| WO2023040228A1 (en) * | 2021-09-17 | 2023-03-23 | 湖北文理学院 | Visible light positioning assisted multi-user light communication system and method |
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Application publication date: 20140212 Assignee: Dongguan Qinshang Photoelectric Co., Ltd. Assignor: Semiconductor Inst., Chinese Academy of Sciences Contract record no.: 2015990000263 Denomination of invention: Visible light communication receiving device for fully automatically tracking light source License type: Common License Record date: 20150430 |
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