CN205861898U - A kind of indoor wireless positioner - Google Patents
A kind of indoor wireless positioner Download PDFInfo
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- CN205861898U CN205861898U CN201620803088.5U CN201620803088U CN205861898U CN 205861898 U CN205861898 U CN 205861898U CN 201620803088 U CN201620803088 U CN 201620803088U CN 205861898 U CN205861898 U CN 205861898U
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Abstract
This utility model provides a kind of indoor wireless positioner, including controlling device and coupled radio scan device, receiving device, detected thing, described detected thing is placed in detected region, and set up space coordinates in detected region, radio wave signal can be replied after receiving the detectable signal that radio scan device is launched；Described reception device is used for receiving and recognizing described radio wave answer signal；Described control device is used for gathering data and according to data, detected thing being carried out computing location.Described apparatus structure is simple, utilizes this utility model, and precision is high, low cost；Described radio scan device can select the electromagnetic wave with stronger penetrance, does not haves and is blocked, and situation about cannot detect.
Description
Technical field
This utility model relates to a kind of positioner, especially relates to a kind of indoor wireless positioner.
Background technology
Along with the development of VR application, except the operation of perception user, the accurately detecting at customer location and each position can be entered
One step strengthens the interaction of application and user, it is achieved more real VR.Additionally, accurately indoor positioning also have a lot of other should
Use scene.
Current indoor precise positioning, some can use costliness, high performance dynamic capture system, some employing attachment electricity
The reception device that pond drives, in weight, the aspect such as volume affects the experience of user.
Utility model content
This utility model provides a kind of indoor wireless positioner, and described radio positioner uses electromagnetic radiation
Directional characteristic and penetrance, in conjunction with scanning technique, i.e. may be implemented in being accurately positioned in space.Either becoming present aspect, also
It is all to improve a lot at aspect easy to use.Its technical scheme is as described below:
A kind of indoor wireless positioner, including control device and coupled radio scan device, receive device,
Detected thing, described detected thing is placed in detected region, energy after receiving the detectable signal that radio scan device is launched
Enough response radio wave signals；Described reception device is used for receiving and recognizing described radio wave answer signal；Described control fills
Put for gathering data and according to data, detected thing being carried out computing location；And set up space coordinates in detected region,
Described radio scan device includes the emitter being arranged on detected area peripheral edge, described emitter include discharger and and its
The rotary apparatus being connected, the rotary shaft that described discharger is arranged around described rotary apparatus rotates, and described transmitting fills
Putting and can launch radio magnetic wave in a direction that can retrain, the radio wave of described constraint is formed around sweeping that rotary shaft rotates
Retouching plane, described discharger rotates to the plane of scanning motion and all positions on the intersecting area of detected region of certain known angle
The detected thing put can receive detectable signal；According to each emitter in the installation site of space coordinates and direction of rotation, each
The reference angle of plane of scanning motion when emitter detects detected thing, it is possible to judge the position of detected thing.
Described discharger is confirmed as datum plane, described quilt through the plane of scanning motion of certain fixed-direction of rotary shaft
The detection thing place plane of scanning motion will be used for location Calculation, the described plane of scanning motion and datum plane angle with the angle of datum plane
The acquisition of angle can be obtained by angular transducer or by using the calculating of temporal characteristics to obtain.
After described detected thing receives detectable signal, by the radio wave response launched or reflection comprises himself feature
Signal, described answer signal can be received device and be received, and therefrom be identified the relevant information of detected thing, described self
Feature includes the material of detected thing selection, response baseband frequency, coded system；Described relevant information includes the class of detected thing
Not, numbering.
The changeless answering device in the periphery some positions of placement in detected region is as monitoring point, and described response fills
Put and can reply radio wave signal after receiving the detectable signal that radio scan device is launched and be obtained by receiving device, be used for
Dynamic boundary identification and position calibration, error concealment.
The both sides in described detected region are provided with that two rotary shafts are parallel but nonoverlapping emitter, in two-dimensional localization
Time, rotary shaft is vertical with detection plane.
Further, during three-dimensional localization, outer at least provided with three emitters in search coverage, at least two of which is sent out
The rotary shaft of emitter parallel but the most overlapping (with two-dimensional localization require identical), at least an emitter rotary shaft is sent out with the first two
The rotary shaft of emitter is not parallel (would generally use vertical mode).
This utility model simple in construction, and precision is high, low cost；Described radio scan device can select to have to wear more by force
The electromagnetic wave of property, does not haves and is blocked thoroughly, and situation about cannot detect.
Accompanying drawing explanation
The instrumentation plan that Fig. 1 is emitter in time turning to datum line to start to forward to detected thing direction；
Fig. 2 is the schematic diagram utilizing triangle formula to position detected thing；
Fig. 3 is the detection schematic diagram that monitoring point is arranged on outside detected region；
Fig. 4 is the structural representation of indoor wireless positioner；
Fig. 5 is the scheme of installation of radio scan device.
Detailed description of the invention
In this utility model, there is several basic object: radio scan device, receive device, control device and detected
Thing.
Described radio scan device includes the emitter being arranged on detected area peripheral edge, and described emitter includes launching dress
Putting and coupled rotary apparatus, the rotary shaft that described discharger is arranged around described rotary apparatus rotates, institute
Stating discharger and can launch radio magnetic wave in a direction that can retrain, the radio wave of described constraint is formed around rotary shaft
The plane of scanning motion rotated, described discharger rotates on the plane of scanning motion and the detected region intersecting area of certain known angle
The detected thing of all positions can receive detectable signal.
Radio scan device can concentrate on persistently to launch on the direction that some is the narrowest and form wave beam covering of the fan, and in level
Or vertical direction presses fixed speed 360 degree rotation.
Detected thing is then required to reflection or the electromagnetic wave of response transmission, it usually needs adhere to aluminium foil on detected thing
Or the electronic tag of similar RFID Tag.
Receive device, control device as receive and processing means, it is possible to receive and recognize detected thing reflection (or should
Answer) signal, and according to receive Time Calculation result.
The discharger of described emitter can be with rotary shaft for 360 degree of rotation sweeps of initial point.As it is shown in figure 1, in theory,
Assume that the time that discharger rotates a circle is T, with forward to a specific direction be set to 0 degree (this direction we be set to base
Directrix), every time from the beginning of turning to datum line, time when forwarding detect thing direction to is t, then detected between thing and datum line
Angle be:
Angle=360*t/T
A set of transmission, reception parts can only measure an angle of detected thing, in order to realize plane positioning, need at quilt
Outside two fixed positions (A, B) of range of movement of detection thing place two set emitters.As in figure 2 it is shown, by triangle formula,
Know a limit of triangle, and two angles on this limit, i.e. can determine that triangle.Thus the plane calculating detected thing is sat
Mark.
Set two emitter A and B, detected some D.
Any point P is (Xp, Yp) at the positional representation of coordinate system.
Known:
Point position is A (Xa, Ya) and B (Xb, Yb),
The angle of AB Yu AD is α,
Rotary shaft is vertical with plane, through A point,
AB is 0 degree of line.
Setting is counterclockwise positive direction,
The angle of BA Yu BD is β,
Rotary shaft is vertical with plane, through B point,
AB is 0 degree of line.
It is positive direction clockwise,
The coordinate formula of so D point:
Xd=(tan β * (Xb Xa) tan α * tan β * (Yb Ya))/(tan α+tan β)+Xa；
Yd=(tan β * (Yb Ya)+tan α * tan β * (Xb Xa))/(tan α+tan β)+Yb；
Visible, the parallel emitter of two groups of (or many groups) rotary shafts has to obtain the coordinate of horizontal plane, when needs are three-dimensional calmly
During position, in addition it is also necessary to install outside search coverage with before the uneven emitter of emitter rotary shaft, usual rotary shaft can be with
The rotary shaft of the first two emitter is vertical so that direction of rotation is vertical direction, thus can measure detected thing and hang down
The coordinate of straight plane.In conjunction with horizontal plane coordinate, thus draw the detected thing three-dimensional coordinate at solid space.(at two points
3D detection blind area reduction of area can be reduced to blind area line.)
When carrying out three-dimensional detection, increasing the 3rd emitter, position is placed on C, meet condition (rotary shaft can not with
The rotary shaft of the first two emitter is parallel.) mode the most, the most only write simplest situation:
Any point P is (Xp, Yp, Zp) at the positional representation of coordinate system,
The setting of AB is same with two-dimensional phase.If C-scan is γ to the angle obtained during D, its value meaning is:
C point coordinates is (Xc, Yc, Zc),
The rotary shaft of C is parallel with coordinate system X-axis,
It is 0 degree of plane with (Y=Yc),
Angle positive direction is the counter clockwise direction by YZ plane.(right hand rule)
The Z coordinate formula of D point: (XY is same with two-dimensional phase)
Zd=(Yd Yc) * tan γ+Zc.
Actual detection system necessarily has multiple emission element (at least two), and each emitter has corresponding connecing
Receive device.But receiving parts might not be with transmission parts one_to_one corresponding.As long as receptor is able to receive that and processes different reflections
Or response message.Generally system can use high-frequency signal, uses identical carrier frequency, and the information different by modulation is come
Distinguishing different transmitting terminals or detected thing, therefore practical situation can have only to a reception and processing component.Either with or without one-tenth
In the case of this demand, it is also possible to for the corresponding single reception device of each emission element, these parts use different
Carrier frequency, thus avoid the loss of significance that data collision causes.
When detected thing only one of which at space exploration, the scheme sticking aluminium foil on detected thing can be used.
Aluminium foil is having radio wave through out-of-date, can directly reflect radio wave by original signal.Receptor the most only need to be allowed to resolve which belongs to
Individual emission source, can complete singly to detect the 2D/3D location of thing.
When detected things multiple in activity space, when needing to carry out Multi-point detection simultaneously, receive device and need ability
Identification is the response of which detection thing, at this moment cannot use simple reflection mode.Need attached in each controlled survey thing
Miniature electric wave reception and dispensing device (electronic tag), they are after receiving scanning electric wave, are not directly reflections, but
Can actively send discrepant answer signal.It is typically carrier wave superposition differentiable analog or digital modulation intelligence.
In actual applications, we can strengthen the power of emitting radio waves.So electronic tag can be directly from reception
The energy that radio wave obtains, drives it to send answer signal.Its electronic working principle is the same with RFID.The modulation of load information
Demodulation scheme can also be with reference to RFID related specifications.
In actual application, can run into various situation and produce error, some means below can be effective for different situations
Elimination error.
As in figure 2 it is shown, when detected thing falls on the straight line through AB 2, tram, warp cannot be determined
The linear extent crossing AB 2 is referred to as detecting blind spot.The setting of emitter should avoid it to fall into the space model of detected thing
In enclosing.If but can not avoid completely, we can place the 3rd emitter at another position (C), and so we are permissible
Respectively with AB, BC, AC calculate the position of detected thing, obtain three groups of data.When detected thing falls certain blind area, we
This result can be ignored.Remaining effective result should be overlapping in theory, the actual deviation that has, but comprehensively organize result more,
These measurement error can be reduced, it is thus achieved that more accurate positioning result.
The detection directional error of datum line affects angular surveying accuracy.Except detecting the measurement error of device itself, it
Also affected by detection position.Our physical error of known detection device itself is f, monitoring point to center of rotation axle away from
From being d, and actual detected thing (farthest detecting location) is D to the distance of central shaft, then be detected thing
Actual (maximum) error=f*D/d
Monitoring point and the emission element of datum line are integrated, arise that (d < < D), its result is that error is by sternly
Reset big.So in the case of with good conditionsi, using as far as possible and make datum line monitoring point distance rotary shaft more farther.
Additionally, in reality is measured, further encounter some problems, affect certainty of measurement:
(1) mechanical stability of electric rotating machine；
(2) accuracy of detection when antenna turns to datum line is launched；
(3) from the beginning of radio wave transmission, the reflection after receiving to detected thing or response, then receive to receiving device,
Start to obtain Time Calculation to controlling device, the delay error of generation.
Except the detection of electrons means by discharger itself, the monitoring point of datum line the most completely can be in another way
Realize, as it is shown on figure 3, monitoring point i.e. be detected thing and use identical aluminium foil and electronic tag to realize, make with monitoring point
Reference point for angle.It is not 360 the most significant, if we are respectively in detected region 3 for actually launching antenna
Two ends place emission element (circular AB), and reference point (rhombus XY).Assume that emission element is to be rotated clockwise, as long as
Space exploration falls in triangle XOY region, then either A or B, is bound to first detect X, is followed by detecting and is visited
Survey thing, finally detect Y.We only need to be treated as datum line AX or BX, it is possible to reaches the actual error essence less than (f)
Degree, 360 degree in angle calculation formula and T can also use the number of degrees of angle XAY (or XBY) respectively, and T (x-> y) replaces.
As long as handling process is consistent, this scheme can also be ignored (or counteracting) and receive and process the error that time delay produces.
And farthest avoid machinery swing circle to shake the error brought.
For launch point A, its actual detection angle (XAY) is greater than effective angle (MAY), if but at M or N position rack
If the detection that reference point will be detected thing to reality produces interference, it is not suitable for aluminium foil mirroring scheme.
If reference point uses electronic tag, can distinguish whether be detected thing, Yi Jishi due to modulation intelligence
Which reference point, therefore without the concern for sequencing problem.So can be to arrange multiple reference point between XY, this can reduce transmitting
The error that the non-uniform velocity of device electric rotating machine brings, promotes precision further.
According to above inference, as shown in Figure 4 and Figure 5, radio scan device will realize the single interior space detecting thing
Positioning function, use 3D transmitter device 1 and 3D transmitter device 2, the composition of each 3D emitter include horizontal emission device 11,
Vertical Launch device 12, described horizontal emission device 11, Vertical Launch device 12 are carried out by motor 15 and motor 16 respectively
Rotating, datum line 13 and datum line 14 are separately positioned on motor 15 and motor 16.
The reception of radio scan device and process supervisory control desk include receiving device 4 and receiving device 5, are respectively used to receive
Data both horizontally and vertically, and transfer data to control device 6, described control device 6 is typically the Intelligent electrics such as PC
Subset, it is possible to and between 3D transmitter device, carry out communication.
Described control device 6 has following major function in this device:
(1) unified synchronised clock is built；
(2) build and unified space coordinates is set；
(3) operation of 3D emitter is controlled；
(4) receive the signal of emitter and process, calculating the locus of detected thing；
(5) in 3D emitter and position setting up procedure, it is responsible for each parameter (position) input.
The installation site schematic diagram of radio scan device is as it is shown in figure 5, described emitter 1 and emitter 2 are arranged on and are visited
Surveying the periphery in region 3, the emitter direction of rotation of the horizontal direction of described emitter is identical, the emitter rotation of described vertical direction
Turn direction identical.
Described detected thing uses the answering device of similar RFID label tag, said two emitter and detected region 3
Vertical dimension is identical, is projected in the relative two ends in detected region.
During application, the synchronised clock that described control device is unified with emitter builds, build and arrange unified space and sit
Mark；
The discharger of control transmitter rotates, and carries out signal transmitting, monitoring point and detected thing by signaling reflex simultaneously
To receiving device；
The angle-data of emitter when detecting monitoring point and detected thing is sent to control device by described reception device；
Described control device is by the angle-data in step (3), and distance, emitter between emitter and visited
Survey the distance between region, obtain the detected thing spatial positional information in detected region.
Claims (5)
1. an indoor wireless positioner, including controlling device and coupled radio scan device, receiving device, quilt
Detection thing, described detected thing is placed in detected region, can after receiving the detectable signal that radio scan device is launched
Response radio wave signal；Described reception device is used for receiving and recognizing described radio wave answer signal；Described control device
For gathering data and according to data, detected thing being carried out computing location；And set up space coordinates in detected region, its
Being characterised by: described radio scan device includes being arranged on the emitter of detected area peripheral edge, described emitter includes launching
Device and coupled rotary apparatus, the rotary shaft that described discharger is arranged around described rotary apparatus rotates,
Described discharger can launch radio magnetic wave in a direction that can retrain, and the radio wave of described constraint is formed around rotation
The plane of scanning motion that axle rotates, described discharger rotates to the plane of scanning motion and the detected region intersecting area of certain known angle
On the detected thing of all positions can receive detectable signal；According to each emitter in the installation site of space coordinates and rotation
Turn direction, the reference angle of each emitter plane of scanning motion when detecting detected thing, it is possible to judge the position of detected thing.
Indoor wireless positioner the most according to claim 1, it is characterised in that: described discharger is through rotary shaft
The plane of scanning motion of certain fixed-direction is confirmed as the folder of datum plane, the described detected thing place plane of scanning motion and datum plane
Angle will be used for location Calculation, and the described plane of scanning motion can be obtained by angular transducer with the acquisition of datum plane angle angle
Obtain or by using the calculating of temporal characteristics to obtain.
Indoor wireless positioner the most according to claim 1, it is characterised in that: described detected thing receives detectable signal
After, by the radio wave answer signal launched or reflection comprises himself feature, described answer signal can be received device
Being received, and therefrom identify the relevant information of detected thing, described unique characteristics includes the material of detected thing selection, response
Baseband frequency, coded system；Described relevant information includes the detected classification of thing, numbering.
Indoor wireless positioner the most according to claim 1, it is characterised in that: if the periphery in detected region is placed
The changeless answering device in dry position is receiving, as monitoring point, described answering device, the detection letter that radio scan device is launched
Radio wave signal can be replied after number and obtained, for dynamic boundary identification and position calibration, error concealment by receiving device.
Indoor wireless positioner the most according to claim 1, it is characterised in that: the both sides in described detected region are installed
Having two rotary shafts parallel but nonoverlapping emitter, when two-dimensional localization, rotary shaft is vertical with detection plane；When carrying out three
During dimension location, needing to install the 3rd emitter outside search coverage, rotary shaft should be uneven with the rotary shaft of the first two emitter
OK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803088.5U CN205861898U (en) | 2016-07-27 | 2016-07-27 | A kind of indoor wireless positioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620803088.5U CN205861898U (en) | 2016-07-27 | 2016-07-27 | A kind of indoor wireless positioner |
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| CN205861898U true CN205861898U (en) | 2017-01-04 |
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| CN201620803088.5U Withdrawn - After Issue CN205861898U (en) | 2016-07-27 | 2016-07-27 | A kind of indoor wireless positioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106125071A (en) * | 2016-07-27 | 2016-11-16 | 北京斯凯兰恩广告有限公司 | A kind of indoor wireless positioner and localization method thereof |
| CN109188360A (en) * | 2018-09-21 | 2019-01-11 | 西安电子科技大学 | A kind of indoor visible light 3-D positioning method based on bat algorithm |
| CN110133624A (en) * | 2019-05-14 | 2019-08-16 | 北京百度网讯科技有限公司 | Method for detecting abnormality, device, equipment and medium |
-
2016
- 2016-07-27 CN CN201620803088.5U patent/CN205861898U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106125071A (en) * | 2016-07-27 | 2016-11-16 | 北京斯凯兰恩广告有限公司 | A kind of indoor wireless positioner and localization method thereof |
| CN106125071B (en) * | 2016-07-27 | 2018-09-11 | 北京斯凯兰恩广告有限公司 | A kind of indoor wireless positioning device and its localization method |
| CN109188360A (en) * | 2018-09-21 | 2019-01-11 | 西安电子科技大学 | A kind of indoor visible light 3-D positioning method based on bat algorithm |
| CN109188360B (en) * | 2018-09-21 | 2021-05-04 | 西安电子科技大学 | Indoor visible light three-dimensional positioning method based on bat algorithm |
| CN110133624A (en) * | 2019-05-14 | 2019-08-16 | 北京百度网讯科技有限公司 | Method for detecting abnormality, device, equipment and medium |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170104 Effective date of abandoning: 20180911 |
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| AV01 | Patent right actively abandoned |