CN107561493A - Light scanning formula positioner based on annular LCD characteristics - Google Patents
Light scanning formula positioner based on annular LCD characteristics Download PDFInfo
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- CN107561493A CN107561493A CN201610207147.7A CN201610207147A CN107561493A CN 107561493 A CN107561493 A CN 107561493A CN 201610207147 A CN201610207147 A CN 201610207147A CN 107561493 A CN107561493 A CN 107561493A
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Abstract
The invention discloses a kind of light scanning formula positioner based on LCD characteristics, has the characteristics of positioning precision is high, cost is cheap.Its method is：(1) a kind of light scanning formula positioner based on LCD characteristics, including provide the signal source of positioning light, the mobile device that needs position.(2) signal source described in produces scanning light beam using LCD shading characteristic, circle centre position of the light source in annular LCD display, lighting always, annular LCD shelters from most light, only retaining a row pixel makes its printing opacity, then LCD whole 360 degree of this row picture element scan is controlled, forms scanning light beam.(3) mobile device described in has the ability of the light beam of reception signal source transmitting, it can be calculated and start the time that scanning receives light beam to optical receiver module, wherein, scan to obtain time t1 in left-side signal source, right-side signal source is scanned to obtain time t2, and the position of mobile device is determined by this time t1, t2.
Description
Technical field
The present invention relates to the positioning of the angle in wireless positioning field, in particular it relates to which a kind of light based on annular LCD characteristics is swept
Retouch formula positioner.
Background technology
With the continuous progress of science and technology, various location technologies are widely used, but in the market based on electromagnetism wave angle
The positioning product of degree, exist and implement the shortcomings that more inconvenient.
The content of the invention
It is an object of the invention to provide a kind of light scanning formula positioner based on annular LCD characteristics, has positioning precision height,
The characteristics of placement is convenient, cost is cheap, easily operated, easy to maintenance.
To achieve these goals, the present invention adopts the following technical scheme that：
A kind of light scanning formula positioner based on annular LCD characteristics, including the signal source of positioning light is provided, needs to position
Mobile device.
Described signal source has centered on light source, launches the ability of light (electromagnetic wave) 360 degree of scannings；
Described mobile device has the ability of the light beam of reception signal source transmitting；
Described signal source with and mobile device be connected, wireless transport module transmission information can be passed through.
Further, the signal source includes light source, annular LCD liquid crystal display screen (removal backlight), nothing containing control module
Line transport module etc..
Further, the mobile device includes optical receiver module, control module, wireless transport module, uses this technology
Automation equipment.
The present invention is because using above-mentioned technical proposal, it has the advantages that：
The present invention has positioning precision high using annular LCD control light positioning, placement is convenient, cost is cheap, it is easily operated,
The characteristics of easy to maintenance.
Below by drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is overall structure diagram
Fig. 2 is signal source structural representation
Fig. 3 is mobile device structural representation
Fig. 4 is mobile device schematic diagram
Fig. 5 is the magnified partial view for scanning schematic diagram
Fig. 6 is scanning schematic diagram
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred embodiment described herein is only
For instruction and explanation of the present invention, it is not intended to limit the present invention.
1st, hardware of the invention composition is：
(1) reference picture 1, a kind of light scanning formula positioner based on annular LCD characteristics of the invention, by positioning letter can be produced
The signal source 1 of breath, the mobile device 2 of reception location information forms on ground 3.
In the part (1), signal source 1 has the ability of transmitting positioning light beam.
In the part (1), mobile device 2 has the ability of the positioning light beam of reception signal source transmitting.
In the part (1), simple information can be transmitted by wireless transport module between signal source 1 and mobile device 2.
(2) reference picture 2, signal source 1 of the invention is by light source 11 and the (mould containing control of annular LCD display 12 for removing backlight
Block) composition.
In the signal source 1, signal source 1 produces scanning light beam using LCD shading characteristic, and light source 11 is shown in annular LCD
The circle centre position of screen 12, is lighting always, and annular LCD shelters from most light, and only retaining a row pixel makes its printing opacity,
Then LCD whole 360 degree of this row picture element scan is controlled, forms scanning light beam.
In the signal source 1, light source 11 selects a less light source of volume (or electromagnetic wave source).
In the signal source 1, the distance of light source 11 and annular LCD display 12 is proportional to positioning precision, and distance is more remote, essence
Degree is higher.
In the signal source 1, annular LCD display 12 refers to the LCD display of a strip to make cylinder
Side pattern, only alteration of form, other aspects are as normal LCD display.
In the signal source 1, annular LCD display 12 is because no imaging needs, to be cost-effective, optional black and white annular LCD
LCDs, while function can be simplified, the function of only being scanned with permutation.
In the signal source 1, annular its resolution ratio of LCD display 12 is directly proportional to location requirement, and it is total that location requirement includes positioning
Area and positioning precision.
(3) reference picture 3, mobile device 2 of the invention is by optical receiver module 21, the control module 22 comprising wireless transport module
Formed with using the automation equipment 23 of this technology.
(4) reference picture 4, mobile device 2 of the invention is by optical receiver module, wireless transport module, control module and uses this
The automation equipment composition of technology.
In described mobile device 2, optical receiver module, which has, receives positioning light beam, and differentiates the ability of its signal strength.
In described mobile device 2, easy bluetooth, WiFi etc. can be selected between wireless device, and signal source in wireless transport module
With simple information interchange ability.
In described mobile device 2, the signal message that control module can be received by analyzing optical receiver module is analyzed and processed,
The coordinate information of the position is drawn, further according to the information (e.g., routing information etc.) in database, control uses oneself of this technology
Dynamicization equipment.
In described mobile device 2, control module can select different chips according to performance requirement, such as single-chip microcomputer, RAM, DSP
Deng.
2nd, operation principle of the invention is：
(1) reference picture 5, this figure are Fig. 6 magnified partial views, when it is determined that a certain position needs positioning on the ground, now should
There is optical receiver module above position (position is defined as A), then the wireless transport module of mobile device transmits signal,
The wireless transport module reception signal of signal source, then controls annular LCD display, because LCD has shading characteristic, makes
It masks the light of the overwhelming majority, only retains a row pixel, makes its printing opacity, forms scanning light beam, its scanning light beam is with a certain
Angle is starting point, progressively scans whole planar 360 degree.
(2) reference picture 6, this figure are scanning schematic diagrames, and the straight line intersected in figure represents position A.
At least two signal source cooperations could produce desired position effect.
During only two signal sources：
The wherein annular LCD display in left side, the first transversal scanning from 0 degree to 360 degree in a manner of permutation, because liquid crystal display
Printing opacity shading characteristic, the effect that light beam scans whole plane is obtained, when scanning is to position A on ground, optical receiver module
Receive beam intensity conversion, and control module of the transmission information into mobile device.Now, control module is by calculating from sweeping
Retouch start to optical receiver module receive light beam when time obtain t1；
Then right circular LCD display is continuing thereafter with scanning, can similarly obtain t2；
The particular location according to where being obtained t1, t2.
When a large amount of signal sources are used in conjunction with, when positioning large area：
Signal source arrangement in a row, all signal sources scan since a certain angle simultaneously, and mobile device selects most strong two of optical signal
Bar, therefore position A must be divided into t1, t2 between two adjacent signal sources according to the time order and function relation of reception, if with
Scanning clockwise, the left-side signal source scanning reception time is t1, right side t2.
Can be in the hope of position A according to t1, t2.
(3) above procedure is repeated.
Pay attention to：Transmission delay need to be additionally subtracted, above t1, t2 is the result after processing delay.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although
The present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be to preceding
State the technical scheme described in embodiment to modify, or equivalent substitution is carried out to which part technical characteristic.It is all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvements made etc., should be included in protection scope of the present invention it
It is interior.
Claims (7)
1. the light scanning formula positioner based on annular LCD characteristics, it is characterised in that：
1) described device includes the mobile device for providing the signal source of positioning light, needs position；
2) signal source described in has centered on light source, launches the ability of light (electromagnetic wave) 360 degree of scannings；；
3) mobile device described in has the ability of the light beam of reception signal source transmitting, can be calculated to start to scan and arrives optical receiver module
The time of light beam is received, according to the difference of source location, time t1 can be obtained respectively, time t2, pass through this time
T1, t2 can obtain angle information, and the position of mobile device can be determined further according to source location；
4) signal source described in and mobile device be connected, wireless transport module transmission information can be passed through.
2. the light scanning formula positioner according to claim 1 based on annular LCD characteristics, it is characterised in that the letter
In number source, signal source produces scanning light beam using LCD shading characteristic, light source annular LCD display circle centre position, one
Directly lighting, annular LCD shelters from most light, and only retaining a row pixel makes its printing opacity, then controls LCD this
One whole 360 degree of row pixel rotation sweep, form scanning light beam.
3. the light scanning formula positioner according to claim 1 based on annular LCD characteristics, it is characterised in that the letter
Number source includes light source (electromagnetic wave source), the annular LCD liquid crystal display screen (removal backlight) containing control module, is wirelessly transferred mould
Block.
4. the light scanning formula positioner according to claim 1 based on annular LCD characteristics, it is characterised in that further
Ground, the mobile device include optical receiver module, control module, wireless transport module, the automation equipment using this technology.
5. the light scanning formula positioner according to claim 1 based on annular LCD characteristics, it is characterised in that further
Ground, the mobile device include optical receiver module, control module, wireless transport module, the automation equipment using this technology.
6. the light scanning formula positioner according to claim 2 based on annular LCD characteristics, it is characterised in that described to contain
The annular LCD liquid crystal display screen of control module can be selected black and white LCD liquid crystal display screen, while function can be as simple as and only have
The function of permutation scanning.
7. the light scanning formula positioner according to claim 2 based on annular LCD characteristics, it is characterised in that described to contain
The annular LCD liquid crystal display screen shape of control module is annular, can be the side of the standard of cylinder, can also bend, and is formed
A spherical part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207147.7A CN107561493B (en) | 2016-06-30 | 2016-06-30 | Light scanning type positioning device based on annular LCD characteristics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610207147.7A CN107561493B (en) | 2016-06-30 | 2016-06-30 | Light scanning type positioning device based on annular LCD characteristics |
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| CN107561493A true CN107561493A (en) | 2018-01-09 |
| CN107561493B CN107561493B (en) | 2021-06-01 |
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| JP2004192142A (en) * | 2002-12-09 | 2004-07-08 | Sharp Corp | Pen input display device |
| CN1867852A (en) * | 2003-10-15 | 2006-11-22 | 宋太善 | Two dimensional optical scanning apparatus and image display apparatus using the same |
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Address after: 277527 the government of Mu Shi Town, Tengzhou, Shandong, is adjacent to Huayi photo studio. Applicant after: Wu Yiji Address before: 271000 dormitory 6, School of information, Shandong Agricultural University, Tai'an, Shandong 102 Applicant before: Wu Yiji |
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