CN109870161A - LED based indoor horizontal moves light source localization method - Google Patents
LED based indoor horizontal moves light source localization method Download PDFInfo
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- CN109870161A CN109870161A CN201910143495.6A CN201910143495A CN109870161A CN 109870161 A CN109870161 A CN 109870161A CN 201910143495 A CN201910143495 A CN 201910143495A CN 109870161 A CN109870161 A CN 109870161A
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Abstract
The present invention relates to a kind of mobile light source localization method of LED based indoor horizontal, positioning object is to move horizontally object, comprising: the optical signal receiver at top setting indoors 3 or more, known to each receiver position coordinates.LED incidence illuminance is monitored, it obtains monitoring data and reaches convergence center, single receiver is only capable of the positioning object's position range that will be moved and determines in a certain loop-drive range, loop-drive width is the decision of preset illumination error threshold, by the loop-drive range of the strongest 3 receiver overlapping portion of received incident optical signal, the positioning object's position of a certain time point is determined；LED light source is arranged at the top of positioning object, and angle vertical is upward, and position is fixed, and in light source emission process, needs to keep light source center point vertical, and light illumination is constant, and range of exposures is uniform, is alien frequencies or different wave shape between different positioned light sources, to avoid there is mutual interference.
Description
Technical field
The present invention relates to technical field of visible light communication, are concretely the mobile light source positioning of LED based indoor horizontal
Method.
Background technique
The development and progress of LED light source technology, have many advantages, such as that high brightness, low-power consumption, the white light LEDs of long-life are existing
Gradually replace the trend of fluorescent lamp and incandescent lamp.Since white light LEDs communication modulation is convenient, response is rapid, in harmless radiation, guarantor
Close, stability etc. is with the obvious advantage compared with the modes such as infrared, ultraviolet, radio frequency, becomes a kind of emerging visible light communication
(VLC) mode is gradually generalized to indoor positioning field.Existing LED localization method is able to maintain that the stability of channel, can grasp
The property made is strong, but is lack of pertinence model, single light source multiple collector item for the tracking and positioning sample requirement of indoor moving target
The acquisition treatment research of radiofrequency signal under part is less.
Specifically, there are wireless weak electric signals to shield for traditional GPS positioning in some large spacing factory buildings, position error, position
Set the characteristic that delay determines.These characteristics make user, and there are location datas and practical mobile behavior to differ greatly, mistake determines
Mobile device status etc. is faced with many problems.And for positioning object, indoor various modern electrical equipment
The electromagnetic radiation of generation, and huge challenge is brought to the normal work of positioning terminal.Since the electromagnetic radiation of electrical equipment is dry
The efficiency that positioning can be seriously affected with the moving condition of positioning object is disturbed, therefore how research makes full use of incident light to determine movement
Goal behavior feature avoids or reduced interference, avoids running fix delay and error approach measure, and becoming is locating system
The very big challenge faced in design.
Summary of the invention
In order to make full use of incident light to determine that mobile goal behavior feature, science reduce quantity of light source, avoids or reduce
It interferes, avoid the problem that running fix delay and error, the present invention propose a kind of mobile light source positioning of LED based indoor horizontal
Method.In this method, more LED reception devices may be implemented to the consecutive tracking for moving horizontally process of same transmitter, from basic
On avoid the appearance of the above problem.Technical solution is as follows:
A kind of mobile light source localization method of LED based indoor horizontal, positioning object is to move horizontally object, comprising:
(1) optical signal receiver at top setting indoors 3 or more, known to each receiver position coordinates.LED is entered
It penetrates illuminance to be monitored, obtains monitoring data and reach convergence center, single receiver is only capable of the positioning object position that will be moved
It sets range to determine in a certain loop-drive range, loop-drive width is the decision of preset illumination error threshold, by received incidence
The loop-drive range of receiver overlapping portion at optical signal strongest 3, determines the positioning object's position of a certain time point.
(2) LED light source is arranged at the top of positioning object, and angle vertical is upward, and position is fixed, and in light source emission process, is needed
Keep light source center point vertical, light illumination is constant, and range of exposures is uniform, is alien frequencies or waveform difference between different positioned light sources
It is different, to avoid there is mutual interference.
The positioning object positioning object can be moveable carriage, and LED light source is fixed on car body top, is grasped using remote control
Make mode moving trolley and opening and closing light source, is achieved in positioning object self-stabilization and controllable locomotive function.
The present invention installs the multiple receivers in top based on the light beam receive-transmit system of light LED, using indoor large space,
The LED light source that center is irradiated vertically upward and irradiation angle range is fixed at setting one at the top of positioning object, it is same according to establishing
Incidence angles degree that LED light source is formed on multiple collector, different photoelectricity can establish data acquisition basic model, complete in connection
The convergence center of portion's receiver compares and analyzes, and obtains the mobile situation of change of linear positioning object, determines its behavior state.
The LED localization method designed on the basis of above-mentioned model makes to completely avoid electrical equipment electromagnetic radiation in large space room
Interference to positioning terminal working condition, while location information can be quickly and accurately provided, improve positioning efficiency.
Detailed description of the invention
Fig. 1 is present system flow chart
Fig. 2 is multiple collector setting of the present invention
Fig. 3 is that the present invention is based on the positioning of multiple collector judgements
Fig. 4 is white LED light source of the present invention and positioning object assembly
Fig. 5 is that continuous monitoring of the invention obtains movement speed and path, and the receiver effectively monitored switches.
Specific embodiment
Now to implementation of the invention provide referring in detail to.To explain that the present invention will be described with reference to the drawings following embodiments.
Fig. 1 shows four step development sequences of the invention, is respectively:
(1) monitoring region and receiver setting, test are determined: receiver is mounted on large spacing factory building indoor suspended ceiling position
It sets, is typically wire connected to convergence center, carry out receiver test.
(2) light source LED light source setting and test: is set according to step 2.Each light illumination is tested with any receiver to hold
Continuous stability.Light source is placed on each corner position to light, tests whether to ensure to have 3 or more receivers to acquire correct position
Set data.
(3) setting of positioning object is installed with light source: based on (2), it is removable fixed that light source emitter is fixedly mounted on
The top of position object-based device, light source center installs vertically upward, position object built-in sensors mainboard and mobile control, remote control,
Battery module, whether test position fix object is normal from mobile behavior, and whether light source is without obvious vibration.
(4) the positioning object continuous moving assignment test of light source is set up: based on (1), (2), (3), by remote control side
Formula tests speed change, deflecting positioning object's position when driving and gesture determination, compares accuracy with video.Test position fix pair
When as movement, because of each receiver incident light illumination change, and the voluntarily switch instances for the influence location data source realized.
Fig. 2 shows that multiple collector is arranged.As monitoring region interior require each corner≤180 °.
(1) Fig. 2 (a) is the sectional view on the downside of furred ceiling.Each receiver (A, B, C, D, E) is uniformly distributed indoors.It is required that appointing
After one transmitter is lighted, the optical signal generated when moving in ground level point can obtain 3 and the above receiver
Effective reception, convergence center generate location data.Edge location data acquisition can by wall side E and each corner position A,
B, C, D make the test.Such as: transmitter position E is worst marginal position, and transmitting LED beam still can be by
Receiver first, the third, fourth effectively receive, and position data is transmitted in convergence center.
(2) Fig. 2 (b) is the sectional view of any receiver position in room.Furred ceiling, receiver quantity are installed indoors
It is determined by working method and monitoring requirements, it is desirable that each receiver carries out circuit and network layout, connection exchange above furred ceiling
Power supply and convergence center, below furred ceiling, receiver laying meet corner, wall side least favorable range points monitoring position monitoring away from
From within the scope of, it is ensured that monitoring is without blind spot.
Fig. 3 is that the positioning based on multiple collector determines.For any positioning object α for being equipped with LED light source, certain is for the moment
Point, 3 receivers of illuminance are penetrated in the respectively most trunk offering of receiver first, second, third, comprehensive to determine location data.Reception is taken at this time
Device first, second, third receive incident ray illumination, loop-drive range α first, α second, α third on the ground analyzed.3 loop-drive intersections
The position point location object α when region is this.Loop-drive width upper limit threshold is preset as 0.01m.
Fig. 4 is white LED light source and positioning object assembly.Positioning object is moveable carriage, and car body top installs LED light
Source transmitter, inside installation mainboard, mobile controller, receiver of remote-control sytem, gyroscope, and the electricity for its movement and light source luminescent
Pond.Using remote control operation mode moving trolley and opening and closing light source.It is thus achieved that positioning object self-stabilization and controllable locomotive function.
Fig. 5 is continuously to monitor obtained movement speed and path in positioning object moving process, and what is effectively monitored connect
Receive device switching.When positioned at position 1, the location information of positioning object α is determined by receiver first, the third, fourth；It is fixed after being moved to position 2
The location information of position object is determined by receiver first, second, fourth.
Generally, technical scheme is as follows:
Step 1: the optical signal receiver in large space room at top setting 3 or more.Each receiver position coordinates are
Know.The incident illuminance of LED white light is monitored, monitoring data is obtained and reaches convergence center.Wherein, single receiver is only
Mobile positioning object's position range can be determined in a certain loop-drive range.Loop-drive width is preset illumination error threshold
Value determines.By the loop-drive range of the strongest 3 receiver overlapping portion of received incident optical signal, the positioning of a certain time point is determined
Object's position.
Step 2: LED light source will be evenly arranged at the top of positioning object, and angle vertical is upward, and position is fixed.Light source emission process
In, it needs to keep light source center point vertical, light illumination is constant, and range of exposures is uniform.It should be alien frequencies between different positioned light sources
Or different wave shape, to avoid there is mutual interference.
Step 3: positioning object should be the trolley that moves horizontally of remote control, and movement routine and speed are unlimited, but should keep steady
Fixed, there can be no shake, overturn.In moving process, positioning object carries battery energy storage equipment, it is ensured that mobile and top
Portion's light source power supply is stablized.
Step 4: position fixing process should be monitored continuously, the variation monitoring data obtained by each receiver, it is possible to determine that positioning
The continuous position of object, obtains movement speed and path.
Claims (2)
1. a kind of mobile light source localization method of LED based indoor horizontal, positioning object are to move horizontally object, comprising:
(1) optical signal receiver at top setting indoors 3 or more, known to each receiver position coordinates.To LED incident light
Illumination is monitored, and is obtained monitoring data and is reached convergence center, single receiver is only capable of the positioning object's position model that will be moved
Judgement is enclosed in a certain loop-drive range, and loop-drive width is the decision of preset illumination error threshold, is believed by received incident light
The loop-drive range of receiver overlapping portion, determines the positioning object's position of a certain time point at numbers strongest 3.
(2) LED light source is arranged at the top of positioning object, and angle vertical is upward, and position is fixed, and in light source emission process, needs to protect
It holds that light source center point is vertical, and light illumination is constant, and range of exposures is uniform, is alien frequencies or different wave shape between different positioned light sources,
To avoid there is mutual interference.
2. localization method according to claim 1, which is characterized in that the positioning object positioning object is small to move
Vehicle, LED light source are fixed on car body top, using remote control operation mode moving trolley and opening and closing light source, are achieved in positioning object
Self-stabilization and controllable locomotive function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910143495.6A CN109870161A (en) | 2019-02-26 | 2019-02-26 | LED based indoor horizontal moves light source localization method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910143495.6A CN109870161A (en) | 2019-02-26 | 2019-02-26 | LED based indoor horizontal moves light source localization method |
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| CN201910143495.6A Pending CN109870161A (en) | 2019-02-26 | 2019-02-26 | LED based indoor horizontal moves light source localization method |
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Citations (4)
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|---|---|---|---|---|
| US20100225929A1 (en) * | 2009-03-06 | 2010-09-09 | Industrial Technology Research Institute | Positioning method and positioning system based on light intensity |
| CN104567857A (en) * | 2014-12-01 | 2015-04-29 | 北京邮电大学 | Indoor positioning method and system based on visible light communication |
| CN105467363A (en) * | 2015-12-03 | 2016-04-06 | 武汉邮电科学研究院 | Triangular positioning system and method based on visible light |
| CN105717488A (en) * | 2016-04-28 | 2016-06-29 | 百色学院 | Optimized two-light-source indoor positioning method and system based on visible-light communication |
-
2019
- 2019-02-26 CN CN201910143495.6A patent/CN109870161A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100225929A1 (en) * | 2009-03-06 | 2010-09-09 | Industrial Technology Research Institute | Positioning method and positioning system based on light intensity |
| CN104567857A (en) * | 2014-12-01 | 2015-04-29 | 北京邮电大学 | Indoor positioning method and system based on visible light communication |
| CN105467363A (en) * | 2015-12-03 | 2016-04-06 | 武汉邮电科学研究院 | Triangular positioning system and method based on visible light |
| CN105717488A (en) * | 2016-04-28 | 2016-06-29 | 百色学院 | Optimized two-light-source indoor positioning method and system based on visible-light communication |
Non-Patent Citations (1)
| Title |
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| 金杉等: "基于白光LED的室内行走目标三维定位方法", 《红外与激光工程》 * |
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Application publication date: 20190611 |
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