CN101943959A - Finger wearing type mouse with combined positioning of optics and acceleration - Google Patents
Finger wearing type mouse with combined positioning of optics and acceleration Download PDFInfo
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- CN101943959A CN101943959A CN2010105031084A CN201010503108A CN101943959A CN 101943959 A CN101943959 A CN 101943959A CN 2010105031084 A CN2010105031084 A CN 2010105031084A CN 201010503108 A CN201010503108 A CN 201010503108A CN 101943959 A CN101943959 A CN 101943959A
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Abstract
The invention relates to a finger wearing type mouse which comprises an optical sensor, an acceleration sensor, a pressure sensor, a microcontrol unit and a sleeve piece used for fixing the mouse on a finger, wherein the microcontrol unit is used for receiving an optical displacement, an acceleration signal and a contact signal of the pressure sensor and a working surface and judging the relative displacement of the mouse and the working surface by a corresponding calculation method.
Description
Technical field:
The present invention relates to a kind of mouse apparatus that adopts the finger-worn type that optical alignment and acceleration location combines with and the disposal route of location.Be specifically related to the disposal route of a kind of like this mouse apparatus and location thereof, wherein, micro-control unit, in order to receiving the signal that contacts of optical displacement gauge, acceleration signal, pressure transducer and workplace, and with the relative shift of corresponding calculation method judgement mouse and workplace.
Background technology:
In the existing common mouse, object distance relative fixed during owing to use uses the optical imaging device of fixture distance to get final product accurate imaging and location.The principle of this optical mouse in being called United States Patent (USP) 6233368B1 number of " cmos digital optical navigation chip ", the name of May 15 calendar year 2001 issue is disclosed specially.In this patent, utilize the illuminator that holds in the optical mouse to illuminate directly to be arranged in the workplace of optical mouse below, the imaging system that is contained in the inside makes arbitrary graphic or feature imaging on the photoinduction face of cmos sensor of workplace.Because this mouse directly contacts with workplace when work, the fixed distance of workplace and imaging device, the picture accurate imaging of lens and the location of using the fixture distance.
Because the mouse shape is different with common writing implement shape, it wants whole mouse to operate in being held in the hand, and writes and mapping operation so be difficult to realization.Developed a kind of like this mouse apparatus of finger-worn type, when it was carried out accurate mapping operation or writes, it can be realized cursor control accurately and simply write.
No. 200420070941.4 (after this claiming " 41.4 patent ") names of application number of announcing on August 3rd, 2005 are called the example that discloses a kind of like this finger mouse in " Optical mouse that is worn finger-type ".Just as shown in fig. 1, be mounted with figure optical processing chip 107 in the mouse apparatus.Light emitting diode 118 sends light, and optical lens 121 makes light imaging on optical processing chip 107 of workplace reflection.So, when optical processing chip 107 captures the image of the workplace by optical lens 121 imagings, can obtain the direction of motion and the amount of exercise of indicating device from the variation of image.
Yet, there is bigger shortcoming in the optical imaging device of " 41.4 patent " when drawing or write, when the distance of indicating device and workplace changes greatly, because the fixedly depth of field of the optical imaging system of image distance restriction, make the image blur of workplace on imageing sensor unclear, thereby influence the seizure of sensor, cause location difficulty image.With reference to the input of Fig. 4 to literal " X ", the operation of mouse is formed by the start writing action and the combination of actions of starting writing usually.Among Fig. 2, when writing letter " X ", action of writing is made up of following steps: one, step M1: start writing at specified point, write then "/"; Two, step M2: start writing standardized then clockwise circular arc aloft; Three, step M3: start writing at specific point, write " ", start writing then.In whole writing process, starting writing and starting writing all requires mouse to keep accurate localization.Usually in the action of starting writing, look different people's use habit and different with the distance that workplace separates.
In order to make finger mouse in three dimensions, all can realize the location, developed a kind of like this mouse, it inserts acceleration transducer in mouse, detect the space displacement amount of computing mouse by the acceleration to mouse.Be called the example that discloses a kind of like this mouse in " ring-type wireless mouse " in disclosed Chinese application number 200910093119.7 on April 7th, 2010 (after this claiming " 19.7 patent ") name.Just as shown in Figure 3, it comprise motion sensor (1), inductor module (8) (, main control module (11) etc., motion sensor (1) is an acceleration transducer.Owing to utilize the acceleration location of detecting mouse, need pre-determine the initial motion vector of mouse, determine but this scheme initial motion vector is difficult, often be prone to cursor in the use and obviously drift about.
In order to overcome the location difficulty of Optical mouse that is worn finger-type when starting writing, and acceleration transducer mouse initial vector is difficult definite, in use be prone to the obviously problem of drift of cursor, need a kind of like this mouse, it can be installed in the finger mouse smaller volume, and can make finger mouse when smoothness is write or drawn, starting writing and starting writing all requires mouse to keep accurate localization.
Summary of the invention:
Design the present invention is exactly in order to address the above problem.Fundamental purpose of the present invention provides a kind of interior cover locating device of mouse that can be installed in finger-worn type, it can be installed in the mouse smaller volume of finger-worn type, and the mouse that can make finger-worn type is when smoothness is write or drawn, and starts writing and start writing all to require mouse to keep accurate localization.Its basis: 1, fixedly the optical mouse of image distance can accurately be located under certain fixing object distance; 2, under the known situation of initial motion vector, the acceleration change of applied acceleration sensor sensing mouse can change the variation of calculation of motion vectors smoothly according to the acceleration that senses, thereby the displacement calculating amount realizes the location; 3,, can judge correctly that mouse reaches contact pressure with whether contacting of workplace at the front end setting pressure sensor of mouse.According to above characteristic, adopt while built-in optical sensor, acceleration transducer, pressure transducer etc. in the mouse of finger-worn type, utilize the characteristics separately of optical sensor and acceleration transducer, form and have complementary advantages, accurately the location.
When pressure sensor senses when contacting with workplace, when workplace is good, the optical sensor of mouse can accurately be located, the detected displacement information of optical sensor conforms to the acceleration information of acceleration transducer, and mainly judge the relative shift of mouse at the workplace in-plane with the detected displacement of optical sensor this moment; The optical sensor location that causes mouse in the bad grade of workplace is bad, when the detected displacement information of optical sensor does not conform to the acceleration information of acceleration transducer, then utilize the locating information of optical sensor or the stationary state of judgement to make initial motion vector, and the change of its motion of change calculations of the acceleration that senses of the acceleration transducer after utilizing, to calculate its displacement.When pressure sensor senses to after workplace separates, also utilize the locating information of optical sensor or the stationary state of judgement to make initial motion vector, and the change of its motion of change calculations of the acceleration that senses of the acceleration transducer after utilizing, to calculate its displacement.
Further, when mouse is not contacting the location with workplace is just capable for a long time, also can utilize acceleration transducer to judge the stationary state of mouse.
Using finger mouse carries out cursor positioning, writes or simulates when writing in the air, the vertical a certain plane of lens combination optical axis in the setting space and optical positioning apparatus is a workplace, setting orthogonal diaxon in the plane respectively is X-axis and Y-axis, establish a Z axle perpendicular to the plane, three vertical mutually and crossing.
Set:
Actual measurement acceleration (refer to not remove the acceleration of acceleration of gravity influence, promptly survey acceleration): a
0
Acceleration of motion (referring to remove the acceleration after acceleration of gravity influences, i.e. acceleration of motion): a
Acceleration of gravity: G
A/W acceleration: G
0
Time: T
Unequal time: t ' (refer to acceleration transducer detected with the acceleration of motion (a) of working face parallel direction and detected unequal time of acceleration of motion on this plane of optical sensor)
Preset Time: t1, t2
t2＞t1
As the detected actual measurement acceleration of acceleration transducer (a
0) equal or be similar to default acceleration of gravity (G) (a ≈ G), and the cumulative time (T) surpasses preset time t 1 (T＞=t1), and optical sensor does not detect mouse moving information, and then being judged to be mouse is stationary state (being that the motion vector of mouse on X-axis, Y-axis, Z-direction is zero); Further, the time that the independent applied acceleration sensor work of cause is located continuously (t ') long more, the possibility that cursor drift occurs is big more, cursor drift is obvious more, therefore, when the application said method was done the judgement of mouse stationary state, t1 can adjust according to t ', t ' is more little, and t1 also can suitably shorten.
When product export, detect and set default acceleration of gravity (G) value under the corresponding conditions usually, may there be deviation in the detection accuracy that passes such as temperature, service time tie up under the different operating condition because acceleration transducer is normal, cause detected acceleration of gravity (G) also may have deviation, therefore, often need dynamic calibration, calibration steps can adopt: as the detected actual measurement acceleration of acceleration transducer (a
0) equal or be similar to default acceleration of gravity (G) (a ≈ G), and the cumulative time (T) surpasses preset time t 1 (T＞=t2), and optical sensor does not detect mouse moving information, according to rest time, former default weighted calculation G values such as G value, and resets default G value.
Description of drawings:
To the following description of the preferred implementation that provides, can make above-mentioned purpose of the present invention and feature become clear in conjunction with the drawings.Wherein:
Fig. 1 is that " 41.4 patent " name is called the structural representation of " Optical mouse that is worn finger-type ";
Fig. 2 is that " 19.7 patent " name is called the finger mouse structural representation of " ring-type wireless mouse ";
Fig. 3 is the block diagram that letter " X " write in expression;
Fig. 4 is the structural representation of an embodiment of " finger mouse of optics and acceleration co-located ";
Fig. 5 is the circuit block diagram of Fig. 4 " finger mouse of optics and acceleration co-located ".
Fig. 6 is the judgement of location of Fig. 4 " finger mouse of optics and acceleration co-located " and the process flow diagram of computing method.
Embodiment:
Describe preferred implementation of the present invention below with reference to accompanying drawings in detail and express content of the present invention.
In the above-mentioned accompanying drawing, 1, imageing sensor; 2, acceleration transducer; 3, pressure transducer; 4, microcontroller and information transmission unit; 5, lighting source; 6, lens combination and light path; 7, power module; 8, workplace; 9, catoptron; 10, stationary installation.
Fig. 4 is the structural representation of " finger mouse of optics and acceleration co-located ".In the drawings, pressure transducer (3) is placed in finger mouse foremost, is used to detect the contact pressure of mouse and workplace (8), and output pressure information is to microcontroller and information transmission unit (4).Lighting source (5), lens combination and light path (6), imageing sensor (1), acceleration transducer (2) are placed in the front end of finger mouse successively, lighting source (5) illuminates workplace (8), light imaging on the photoinduction face of imageing sensor (1) of workplace (8) reflection through lens combination and light path (6), the displacement situation of imageing sensor (1) detected image, and output optical displacement information is to microcontroller and information transmission unit (4).The main acceleration change situation that detects all directions parallel of acceleration transducer (2) with workplace (8), and the output acceleration information is to microcontroller and information transmission unit (4).Further, acceleration transducer (2) also can detect 3 dimension acceleration situations of finger mouse, to understand the movement locus of mouse better, finishes more senior function, as operations such as aerial virtual click affirmations.Microcontroller and information transmission unit (4), power module (7) are positioned at the middle and upper part of finger mouse; Microcontroller and information transmission unit (4) receive contact pressure information, optical displacement information, the acceleration information of mouse and workplace (8), and press shown in the positioning flow figure of Fig. 7, finish the judgement and the calculating of location, and with the computing machine communication.Further, the processing of locating information can be finished separately by microcontroller and information transmission unit (4) with calculating, also can be finished by computing machine, or common calculating is finished.
Shown in the process flow diagram of the judgement of the location of Fig. 6 and computing method, when pressure sensor senses when contacting with workplace, when workplace is good, the optical sensor of mouse can accurately be located, the detected displacement information of optical sensor conforms to the acceleration information of acceleration transducer, and mainly judge the relative shift of mouse at the workplace in-plane with the detected displacement of optical sensor this moment; The optical sensor location that causes mouse in the bad grade of workplace is bad, when the detected displacement information of optical sensor does not conform to the acceleration information of acceleration transducer, then according to original optical displacement information or stationary state determination information, according to the displacement of the detected acceleration change computing mouse of acceleration transducer.When pressure sensor senses to after workplace separates, according to original optical displacement information or stationary state determination information, according to the displacement of the detected acceleration change computing mouse of acceleration transducer.
Among the embodiment of Fig. 4 " finger mouse of optics and acceleration co-located ", its imageing sensor (1), acceleration transducer (2), pressure transducer (3), microcontroller are connected shown in the circuit block diagram of Fig. 5 with the circuit of information transmission unit (4).
Characteristics of the present invention and effect are: be equipped with on the mouse for fixing to objects such as finger folder of pointing or cover bands, front end at finger mouse is mounted with pressure transducer, imageing sensor, acceleration transducer, utilize imageing sensor, acceleration transducer different operating characteristic separately, whether applying pressure sensor mouse contacts with workplace, when mouse and workplace different distance, use different motion determination schemes, mouse is write or the whole flow process of mapping all can accurately be located in routine.The present invention is not limited to foregoing embodiment, and the those skilled in the art of this area should be understood that and can make changes and improvements to it that this can not break away from the spirit and scope of the present invention that limited by the claim of being added.
Claims (5)
1. the mouse of a finger-worn type comprises optical sensor, acceleration transducer, pressure transducer, microcontroller and transmission unit composition.
2. the mouse of finger-worn type as claimed in claim 1, optical sensor wherein is in order to detect the displacement of this mouse opposite working, to export an optical displacement information.
3. the mouse of finger-worn type as claimed in claim 1, acceleration transducer wherein in order to detecting the acceleration of this mouse, and is exported an acceleration information according to this.
4. the mouse of finger-worn type as claimed in claim 1, pressure transducer wherein in order to detecting the contact pressure of mouse and workplace, and is exported a pressure information according to this.
5. as the mouse of claim 1,2,3,4 described finger-worn types, wherein microcontroller and transmission unit are in order to receive this optical displacement information; This micro-control unit also receives this acceleration information; This micro-control unit also receives pressure information; According to optical displacement information, acceleration information, pressure information, the relative shift of judgement and computing mouse and workplace, and the output displacement information is to computing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105031084A CN101943959A (en) | 2010-09-28 | 2010-09-28 | Finger wearing type mouse with combined positioning of optics and acceleration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105031084A CN101943959A (en) | 2010-09-28 | 2010-09-28 | Finger wearing type mouse with combined positioning of optics and acceleration |
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| CN101943959A true CN101943959A (en) | 2011-01-12 |
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| CN2010105031084A Pending CN101943959A (en) | 2010-09-28 | 2010-09-28 | Finger wearing type mouse with combined positioning of optics and acceleration |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040119695A1 (en) * | 2002-12-10 | 2004-06-24 | Lee Bang Won | Optical pointing system, signal transmission method of the same, and signal processing method of computing apparatus used in the same |
| CN1996214A (en) * | 2006-01-05 | 2007-07-11 | 邓仕林 | Finger-fit type optical mouse device |
| CN101807126A (en) * | 2010-04-06 | 2010-08-18 | 华为终端有限公司 | Touch pen and method for realizing touch function |
-
2010
- 2010-09-28 CN CN2010105031084A patent/CN101943959A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040119695A1 (en) * | 2002-12-10 | 2004-06-24 | Lee Bang Won | Optical pointing system, signal transmission method of the same, and signal processing method of computing apparatus used in the same |
| CN1996214A (en) * | 2006-01-05 | 2007-07-11 | 邓仕林 | Finger-fit type optical mouse device |
| CN101807126A (en) * | 2010-04-06 | 2010-08-18 | 华为终端有限公司 | Touch pen and method for realizing touch function |
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Application publication date: 20110112 |