CN104699232A - Three-dimensional position detector, electronic device and three-dimensional position detecting method - Google Patents

Three-dimensional position detector, electronic device and three-dimensional position detecting method Download PDF

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Publication number
CN104699232A
CN104699232A CN201310662083.6A CN201310662083A CN104699232A CN 104699232 A CN104699232 A CN 104699232A CN 201310662083 A CN201310662083 A CN 201310662083A CN 104699232 A CN104699232 A CN 104699232A
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China
Prior art keywords
operating body
electrode
dimensional position
detecting electrode
detecting
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CN201310662083.6A
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Chinese (zh)
Inventor
颜罡
方宜娇
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Lenovo Beijing Ltd
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Lenovo Beijing Ltd
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Priority to CN201310662083.6A priority Critical patent/CN104699232A/en
Publication of CN104699232A publication Critical patent/CN104699232A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a three-dimensional position detector, an electronic device and a three-dimensional position detecting method. The three-dimensional position detector comprises an emitting electrode, detecting electrodes, and a processing unit, wherein the emitting electrode is used for emitting electromagnetic pulse signals with preset frequency; the detecting electrodes comprise a first detecting electrode, a second detecting electrode, a third detecting electrode and a fourth detecting electrode, are arranged in a rectangular shape by taking the emitting electrode as a center, and used for receiving the electromagnetic pulse signals reflected by an operating body shielding the emitting electrode; the processing unit is used for calculating the time delay of the received signal echo according to the emitting time of the emitting electrode and the receiving time of the detecting electrodes, and calculating the three-dimensional position of the operating body according to the time delay.

Description

Three-dimensional position pick-up unit, electronic equipment and method
Technical field
The present invention relates to three-dimensional position pick-up unit, electronic equipment and method, more particularly, relate to can detect the three-dimensional position pick-up unit of three-dimension gesture when reducing power consumption, electronic equipment that this three-dimensional position pick-up unit is applied to and method.
Background technology
At present, the development of intelligent terminal (e.g., smart mobile phone) is maked rapid progress, and the function included by it is also more and more extensive.Such as, many intelligent terminals all have projecting function.But when intelligent terminal performs projecting function, if user goes to click screen with hand, then image can be shaken.In addition, the touch-screen of user's (such as, when user is in kitchen) operative intelligence terminal when hand is unclean can cause inconvenience.In this case, use and contactless then effectively can use intelligent terminal every empty-handed gesture.Visible, gesture controls the standard configuration function that may become intelligent terminal in the future.
In the prior art, there is the scheme using infrared proximity transducer (PSensor) detecting device to detect.But, in this scheme, only can detect 2 dimension gestures of such as left cunning, right cunning, upper cunning, downslide and so on, cursor can not be controlled and carry out more complicated operation.Further, the power consumption of this scheme is higher.
The solution of another possibility identifies gesture by camera (Camera).Although this scheme can identify 2 dimension gestures and 3 dimension gestures, still there is the problem that power consumption is higher.
Summary of the invention
In view of above situation, expect to provide three-dimensional detection device and the method that can detect three-dimension gesture when reducing power consumption.
According to an aspect of the present invention, provide a kind of three-dimensional position pick-up unit, comprising:
Emitting electrode, for launching the electromagnetic pulse signal of preset frequency;
Detecting electrode, comprises the first to the four detecting electrode, and centered by described emitting electrode, rectangular shape is placed, for receiving the electromagnetic pulse signal because operating body reflects described blocking of emitting electrode;
Processing unit, for according to the launch time of described emitting electrode and the time of reception of described detecting electrode, calculates the time delay of Received signal strength echo, and calculates the three-dimensional position of described operating body according to described time delay.
Preferably, according in the three-dimensional position pick-up unit of the embodiment of the present invention, described detecting electrode comprises the 5th detecting electrode further, be arranged in region that the described the first to the four detecting electrode surrounds and be positioned at the upper strata of described emitting electrode, for detecting the touch of described operating body to described region.
Preferably, according in the three-dimensional position pick-up unit of the embodiment of the present invention, described processing unit, according to multiple three-dimensional positions of the described operating body calculated, judges the motion of operating body, and then obtains gesture information.
According to a further aspect in the invention, provide a kind of electronic equipment, comprising:
Three-dimensional position pick-up unit, comprising:
Emitting electrode, for launching the electromagnetic pulse signal of preset frequency;
Detecting electrode, comprises the first to the four detecting electrode, and centered by described emitting electrode, rectangular shape is placed, for receiving the electromagnetic pulse signal because operating body reflects described blocking of emitting electrode;
Processing unit, for according to the launch time of described emitting electrode and the time of reception of described detecting electrode, calculates the time delay of Received signal strength echo, and calculates the three-dimensional position of described operating body according to described time delay;
Projecting cell, for the predetermined image that projects.
Preferably, according in the electronic equipment of the embodiment of the present invention, described detecting electrode comprises the 5th detecting electrode further, is arranged in region that the described the first to the four detecting electrode surrounds and is positioned at the upper strata of described emitting electrode, for detecting the touch of described operating body to described region.
Preferably, according in the electronic equipment of the embodiment of the present invention, described processing unit, according to multiple three-dimensional positions of the described operating body calculated, judges the motion of operating body, and then obtains gesture information.
Preferably, according in the electronic equipment of the embodiment of the present invention, the described the first to the four detecting electrode is placed on the back side of described electronic equipment, front or side.
Preferably, comprise further according to the electronic equipment of the embodiment of the present invention:
Control module, for the gesture information obtained according to described processing unit, controls the display transformation of the predetermined image gone out by described projection unit projects.
In accordance with a further aspect of the present invention, provide a kind of three-dimensional position detection method, comprising:
Launch the electromagnetic pulse signal of preset frequency;
Receive the electromagnetic pulse signal reflected due to blocking of operating body;
According to launch time and the time of reception of electromagnetic pulse signal, calculate the time delay of Received signal strength echo, and calculate the three-dimensional position of described operating body according to described time delay.
Preferably, comprise further according to the three-dimensional position detection method of the embodiment of the present invention: detect the touch of described operating body to specific region.
Preferably, the three-dimensional position detection method according to the embodiment of the present invention comprises further: according to multiple three-dimensional positions of the described operating body calculated, judge the motion of operating body, and then obtain gesture information.
Preferably, comprise further according to the three-dimensional position detection method of the embodiment of the present invention:
Projection predetermined image;
According to the gesture information obtained, control the display transformation of the predetermined image projected out.
According to three-dimensional position pick-up unit and the method for the embodiment of the present invention, following advantage can be realized: first, intelligent terminal realizes gesture identification function, thus the page-turning function of such as mobile phone projection to the picture on wall can be realized.In addition, intelligent terminal realizes gesture identification function, compared with prior art, can not only realize mobile phone front every empty gesture function, and on depth information and three-dimension gesture, there is stronger function.Finally, compared with prior art, device power consumption according to the present invention is lower.Further, the multiplexing existing mechanism of electrode, does not occupy exceptional space.
Accompanying drawing explanation
Fig. 1 shows the block diagram of the functional configuration of the three-dimensional position pick-up unit according to the embodiment of the present invention;
The figure that the space that Fig. 2 shows emitting electrode and detecting electrode is arranged;
Fig. 3 shows the block diagram of the configuration of the electronic equipment according to the embodiment of the present invention;
Fig. 4 shows the figure of the layout of detecting electrode on mobile phone battery cover;
Fig. 5 shows the figure of the layout of each interface that detector is connected with processing unit;
Fig. 6 shows the figure of the layout of detecting electrode on mobile phone front;
Fig. 7 shows the figure of the layout of detecting electrode on mobile phone side; And
Fig. 8 shows the process flow diagram of the process of the three-dimensional position detection method according to the embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings of the present invention each is preferred embodiment described.There is provided the description referring to accompanying drawing, to help the understanding to the example embodiment of the present invention limited by claim and equivalent thereof.It comprises the various details helping to understand, but they can only be counted as exemplary.Therefore, those skilled in the art will recognize that, can make various changes and modifications embodiment described herein, and do not depart from the scope of the present invention and spirit.And, in order to make instructions clearly succinct, will the detailed description to well known function and structure be omitted.
First, with reference to Fig. 1, the three-dimensional position pick-up unit according to the embodiment of the present invention is described.As shown in Figure 1, three-dimensional position pick-up unit 100 comprises emitting electrode 102, detecting electrode 104 and processing unit 106.
Emitting electrode 102 is for launching the electromagnetic pulse signal of preset frequency.
Detecting electrode 104 comprises the first to the four detecting electrode 104-1 to 104-4, and centered by described emitting electrode, rectangular shape is placed, for receiving the electromagnetic pulse signal because operating body reflects described blocking of emitting electrode.
Here emitting electrode and detecting electrode form hereinafter described detector.
Processing unit 106, according to the time of reception of the launch time of described emitting electrode and described detecting electrode, calculates the time delay of Received signal strength echo, and calculates the three-dimensional position of described operating body according to described time delay.
It should be noted that, before carrying out three-dimensional position detection, the preset database of processing unit 106.In this database, a three-dimensional position of operating body is corresponding with the time delay of four detecting electrodes.Therefore, when actual measurement, this database can be retrieved according to the time delay of detecting electrode, to obtain the three-dimensional position of operating body.
In addition, detecting electrode 104 can further include the 5th detecting electrode 104-5, is arranged in region that the described the first to the four detecting electrode surrounds and is positioned at the upper strata of described emitting electrode, for detecting the touch of described operating body to described region.
Fig. 2 shows emitting electrode 102 and arranges with the space of detecting electrode 104.Visible, detector is multi-layer PCB structure, total two-layer.
Processing unit 106, according to multiple three-dimensional positions of the described operating body calculated, judges the motion of operating body, and then obtains gesture information.
Above described three-dimensional position pick-up unit can be applied to electronic equipment, as in smart mobile phone.Fig. 3 shows the configuration of the electronic equipment according to the embodiment of the present invention.Except described three-dimensional detection device, this electronic equipment can further include projecting cell 302, for the predetermined image that projects.Further, this electronic equipment can further include control module 304, for the gesture information obtained according to described processing unit, controls the display transformation of the predetermined image projected out by described projecting cell 302.Such as, when the picture projecting in photograph album at projecting cell 302, when input is gradually when the gesture of detector, carry out controlling to amplify with the predetermined image that projecting cell 302 is projected out.On the other hand, when inputting the gesture gradually away from detector, carry out controlling to reduce with the predetermined image that projecting cell 302 is projected out.
Hereinafter, be described for smart mobile phone.But, it should be appreciated by those skilled in the art, the present invention is not limited thereto.Any other electronic equipment needing three-dimensional position measuring ability can also be applied to according to the three-dimensional position pick-up unit of the embodiment of the present invention.
As the first embodiment, the emitting electrode in above described three-dimensional position pick-up unit and detecting electrode can be positioned over the back side of smart mobile phone.Specifically, be integrated in by detecting electrode on back cover, detecting electrode is placed along the limit, upper and lower, left and right four of mobile phone.Emitting electrode is placed on the rear portion of centre, battery of mobile phone, the identification of three-dimension gesture can be realized.Such as, identified region is in back cover vertical direction 10cm.Fig. 4 shows the layout of detecting electrode on mobile phone battery cover.In the diagram, in the region included by dotted line frame, detecting electrode and emitting electrode is arranged according to the mode shown in Fig. 2.
Detector is flat structure, is attached on mobile phone battery cover, as shown in Figure 4.In addition, on hardware configuration, three-dimensional position pick-up unit also comprises interface Tx, Rx0, Rx1, Rx2, Rx3, Rx4 further, is connected respectively with emitting electrode 102, the first to the five detecting electrode 104-1 to 104-5.Detector is connected by Pogo Pin with processing unit, as shown in Figure 5.Pogo Pin is arranged in the side of battery, does not occupy mobile phone additional space, and the circuit of processing unit and Pogo Pin use FPC, extend to battery side below battery.
In a first embodiment, when mobile phone screen keeps flat down, during towards front projection, detect and calculate the motion of staff above mobile phone shell on the back.Specifically, launch the Electromagnetic Continuous pulse signal of 10 ~ 100kHz from emitting electrode, from detecting electrode Received signal strength, according to the time delay of Received signal strength echo, judge the position of hand.Judge the motion of hand from the variation of a series of position, thus obtain gesture.Unlike the prior art, gesture here not only comprises 2 dimension gestures of such as left cunning, right cunning, upper cunning, downslide and so on, but also comprises 3 more complicated dimension gestures.
In addition, as noted before, detecting electrode can further include the 5th detecting electrode, is arranged in region that the described the first to the four detecting electrode surrounds and is positioned at the upper strata of described emitting electrode, for detecting the touch of described operating body to described region.In this case, when the finger of user slides on the back cover of mobile phone, can the function of analog mouse.Now, with digital interface, hand signal is sent to control module 304, and directly projects with the sliding trace of projecting cell 302 by finger.
As the second embodiment, the emitting electrode in above described three-dimensional position pick-up unit and detecting electrode can be positioned over the front of smart mobile phone.Such as, detecting electrode can be placed on the surrounding of mobile phone screen, as shown in Figure 6.Emitting electrode is placed on the rear portion of centre, screen back tabula rasa shielding case, thus screen is multiplexed with emitter.Specifically, common screen construction comprises the metal shielding being positioned at bottom and the luminescence component be located thereon.Be flat structure according to emitting electrode of the present invention, be attached on metal shielding, and then luminescence component is placed thereon.It should be noted that, luminescence component and emitting electrode are only stacked up and down in physical space, and without any substantial connection.In addition, the screen due to smart mobile phone occupies most of region in whole front, therefore there is the possibility of not easily placing detecting electrode.As a kind of possible alternative, detecting electrode can be placed on the side of smart mobile phone, as shown in Figure 7.
In a second embodiment, owing to applying the three-dimensional position pick-up unit according to the embodiment of the present invention, therefore can by controlling every the function of empty-handed gesture to mobile phone, as unlocked mobile phone, receiving calls, playing music etc.In addition, in depth information and three-dimension gesture, it has stronger function.
In a second embodiment, when mobile phone screen is placed upward, during towards front projection, by detecting according to the three-dimensional position pick-up unit of the embodiment of the present invention and calculating the motion of staff above mobile phone screen.Specifically, launch the Electromagnetic Continuous pulse signal of such as 10 ~ 100kHz from emitting electrode, launch from the iron casing structure of screen, then from detecting electrode Received signal strength, judge the position of hand according to the time delay of Received signal strength echo.Judge the motion of hand from the variation of a series of position, thus obtain gesture.Unlike the prior art, gesture here not only comprises 2 dimension gestures of such as left cunning, right cunning, upper cunning, downslide and so on, but also comprises 3 more complicated dimension gestures.
In addition, with the first embodiment unlike, in a second embodiment, do not need to comprise further the 5th detecting electrode detecting and touch.This is because, with mobile phone battery cover unlike, the screen in mobile phone front normally can detect the touch display screen of touch, therefore can omit the 5th detecting electrode.
Hereinbefore, describe according to the three-dimensional position pick-up unit of the embodiment of the present invention and the electronic equipment applying described three-dimensional position pick-up unit referring to figs. 1 through Fig. 7.Next, with reference to Fig. 8, the idiographic flow according to the three-dimensional position detection method of the embodiment of the present invention is described.
As shown in Figure 8, described three-dimensional position detection method comprises the steps:
First, in step S802, launch the electromagnetic pulse signal of preset frequency.
Then, in step S804, receive the electromagnetic pulse signal reflected due to blocking of operating body.
Finally, in step S806, according to launch time and the time of reception of electromagnetic pulse signal, calculate the time delay of Received signal strength echo, and calculate the three-dimensional position of described operating body according to described time delay.
In addition, described method may further include: in step S808, detects the touch of described operating body to specific region.This step S808 is parallel relation with step S802 ~ S806 above.
After step S806, described method comprises further: in step S810, according to multiple three-dimensional positions of the described operating body calculated, judges the motion of operating body, and then obtains gesture information.
Under expectation carries out by gesture information the scene controlled, described method comprises the steps: further
In step S812, projection predetermined image;
Then, in step S814, according to the gesture information obtained, control the display transformation of the predetermined image projected out.
Due to the electronic equipment corresponding to the above described three-dimensional position pick-up unit according to the embodiment of the present invention completely according to the three-dimensional position detection method of the embodiment of the present invention and be applied to, therefore for brevity, its details is repeated no more.
Up to now, three-dimensional position pick-up unit, electronic equipment and the three-dimensional position detection method according to the embodiment of the present invention has been described in detail.In the present invention, intelligent terminal realizes gesture identification function, thus the page-turning function of such as mobile phone projection to the picture on wall can be realized.In addition, intelligent terminal realizes gesture identification function, compared with prior art, can not only realize mobile phone front every empty gesture function, and on depth information and three-dimension gesture, there is stronger function.Finally, compared with prior art, device power consumption according to the present invention is lower.Further, the multiplexing existing mechanism of electrode, does not occupy exceptional space.
It should be noted that, in this manual, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Finally, also it should be noted that, above-mentioned a series of process not only comprises with the order described here temporally process that performs of sequence, and comprises process that is parallel or that perform respectively instead of in chronological order.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add required hardware platform by software and realize, and can certainly all be implemented by software.Based on such understanding, what technical scheme of the present invention contributed to background technology can embody with the form of software product in whole or in part, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform the method described in some part of each embodiment of the present invention or embodiment.
Above to invention has been detailed introduction, applying specific case herein and setting forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims (12)

1. a three-dimensional position pick-up unit, comprising:
Emitting electrode, for launching the electromagnetic pulse signal of preset frequency;
Detecting electrode, comprises the first to the four detecting electrode, and centered by described emitting electrode, rectangular shape is placed, for receiving the electromagnetic pulse signal because operating body reflects described blocking of emitting electrode;
Processing unit, for according to the launch time of described emitting electrode and the time of reception of described detecting electrode, calculates the time delay of Received signal strength echo, and calculates the three-dimensional position of described operating body according to described time delay.
2. device according to claim 1, wherein said detecting electrode comprises the 5th detecting electrode further, be arranged in region that the described the first to the four detecting electrode surrounds and be positioned at the upper strata of described emitting electrode, for detecting the touch of described operating body to described region.
3. device according to claim 1, wherein said processing unit, according to multiple three-dimensional positions of the described operating body calculated, judges the motion of operating body, and then obtains gesture information.
4. an electronic equipment, comprising:
Three-dimensional position pick-up unit, comprising:
Emitting electrode, for launching the electromagnetic pulse signal of preset frequency;
Detecting electrode, comprises the first to the four detecting electrode, and centered by described emitting electrode, rectangular shape is placed, for receiving the electromagnetic pulse signal because operating body reflects described blocking of emitting electrode;
Processing unit, for according to the launch time of described emitting electrode and the time of reception of described detecting electrode, calculates the time delay of Received signal strength echo, and calculates the three-dimensional position of described operating body according to described time delay;
Projecting cell, for the predetermined image that projects.
5. electronic equipment according to claim 4, wherein said detecting electrode comprises the 5th detecting electrode further, be arranged in region that the described the first to the four detecting electrode surrounds and be positioned at the upper strata of described emitting electrode, for detecting the touch of described operating body to described region.
6. electronic equipment according to claim 4, wherein said processing unit, according to multiple three-dimensional positions of the described operating body calculated, judges the motion of operating body, and then obtains gesture information.
7. electronic equipment according to claim 4, the wherein said the first to the four detecting electrode is placed on the back side of described electronic equipment, front or side.
8. electronic equipment according to claim 6, comprises further:
Control module, for the gesture information obtained according to described processing unit, controls the display transformation of the predetermined image gone out by described projection unit projects.
9. a three-dimensional position detection method, comprising:
Launch the electromagnetic pulse signal of preset frequency;
Receive the electromagnetic pulse signal reflected due to blocking of operating body;
According to launch time and the time of reception of electromagnetic pulse signal, calculate the time delay of Received signal strength echo, and calculate the three-dimensional position of described operating body according to described time delay.
10. method according to claim 9, comprises further: detect the touch of described operating body to specific region.
11. methods according to claim 9, comprise further: according to multiple three-dimensional positions of the described operating body calculated, judge the motion of operating body, and then obtain gesture information.
12. methods according to claim 11, comprise further:
Projection predetermined image;
According to the gesture information obtained, control the display transformation of the predetermined image projected out.
CN201310662083.6A 2013-12-09 2013-12-09 Three-dimensional position detector, electronic device and three-dimensional position detecting method Pending CN104699232A (en)

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CN110054049A (en) * 2019-04-26 2019-07-26 上海木木聚枞机器人科技有限公司 A kind of detection method and system of elevator operation

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Application publication date: 20150610