CN104951049A - Method for achieving automatic contraction and expansion of image and map by using infrared distance sensor - Google Patents
Method for achieving automatic contraction and expansion of image and map by using infrared distance sensor Download PDFInfo
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- CN104951049A CN104951049A CN201410111665.XA CN201410111665A CN104951049A CN 104951049 A CN104951049 A CN 104951049A CN 201410111665 A CN201410111665 A CN 201410111665A CN 104951049 A CN104951049 A CN 104951049A
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Abstract
The invention provides a method for achieving automatic contraction and expansion of an image and a map by using an infrared distance sensor. According to an infrared range sensor principle, by detecting the intensity of infrared light rays emitted from an infrared emitting tube, the distance between embedded mobile equipment and a blocking object is calculated, the moving direction of the blocking object is judged, and therefore contraction and expansion functions of the map and the image are achieved. According to the method, by means of motions when a human hand carries out downward pressing or upward pulling on the embedded mobile equipment, and the contraction and expansion functions of the image and the map can be conveniently achieved. The method has the advantages of being simple in operation, convenient and the like.
Description
Technical field
The present invention relates to the method realizing picture and map convergent-divergent, particularly relate to a kind of method being realized picture and map auto zoom in embedded mobile device by infrared distance sensor perception shelter moving direction.
Background technology
The classic method realizing picture and map convergent-divergent, mainly based in PC Application Program Interface, has been come by the action of clicking the mouse.But in embedded mobile device (as mobile phone, PDA etc.) in, due to small volume and portability, the overwhelming majority all can not configure mouse, mitigation and amplification button generally by clicking Application Program Interface realizes picture and map zoom function, make inconvenient operation, and Consumer's Experience sense is not strong yet.
Summary of the invention
For the deficiency realizing picture and map convergent-divergent classic method in embedded mobile device, goal of the invention of the present invention is to provide a kind of method being realized picture and map auto zoom by infrared distance sensor perception shelter moving direction.The power of the Infrared that the method is sent by detection infrared transmitting tube, calculate the distance between embedded mobile device to shelter, when shelter deviates from embedded mobile device gradually, apart from increasing, picture and map reduce gradually; Otherwise when shelter is gradually near embedded mobile device, distance is more and more less, and picture and map amplify gradually.The shelters such as people's palm can be placed on a certain height above embedded mobile device like this, upwards to be stretched or racking realizes picture and map reduces and enlarging function automatically downwards by doing of the palm of people, the method operation intuitive and convenient, the experience sense of user is also very strong.
The principle that realizes of described the method is: by detecting the power of the Infrared that infrared transmitting tube sends, calculate the distance between embedded mobile device to shelter, and then judge that the moving direction of shelter is to realize picture and map reduces or enlarging function automatically.First infrared transmitting tube is driven to send Infrared, after Infrared runs into and blocks object, can be reflected back, this time, infrared light dependent sensor can detect infrared light, and calculates embedded mobile device according to the power of light and block the distance between object.When shelter is gradually near embedded mobile device, infrared sensor can detect embedded mobile device and the distance of blocking between object more and more less, system call programmed algorithm realizes the reduction capability of picture and map; Otherwise, when shelter is gradually away from embedded mobile device, infrared sensor can detect embedded mobile device and the distance of blocking between object increasing, system call programmed algorithm realizes the enlarging function of picture and map.
Described the method flow process is made up of three parts: the bee-line setting infrared perception according to infrared sensor performance parameter
and maximum distance
, identify shelter moving direction, realize picture and map zooms in or out function automatically.First the program interface of picture or map view is entered, infrared induction program just normal startup enters duty, extremely far moved above shelter (palm as people) embedded mobile device gradually by near, when the first time of infrared sensor can detect Infrared, receive Infrared the strongest, by the distance now between embedded mobile device to shelter, be set as bee-line
, when infrared sensor last Infrared being detected, the Infrared received is the most weak, by the distance now between embedded mobile device to shelter, is set as maximum distance
.Then by shelter in bee-line
and maximum distance
between movement arbitrarily, when shelter upwards does pulling action, when the distance between embedded mobile device to shelter becomes large gradually, reducing gradually of picture and map; Otherwise, when shelter does racking downwards, when the distance between embedded mobile device to shelter diminishes gradually, the amplification gradually of picture and map.
Accompanying drawing explanation
Fig. 1 is the hardware frame schematic diagram that the present invention realizes;
Fig. 2 is the software flow schematic diagram that the present invention realizes;
Fig. 3 is picture of the present invention and map enlarging function schematic diagram;
Fig. 4 is picture of the present invention and map reduction capability schematic diagram.
Number in the figure explanation
1-embedded mobile device, 2-infrared light emission pipe, 3-infrared light transducer[sensor
4-isolation arranges 5-Infrared, 6-shelter, 7-picture.
Embodiment
Further illustrate the present invention below in conjunction with accompanying drawing how to realize.
Embodiment
As shown in Figure 1, in hardware implementations of the present invention, comprising: embedded mobile device 1, infrared transmitting tube 2, infrared sensor 3, spacer assembly 4, shelter 6 etc.Picture 7 or electronic map data and convergent-divergent algorithm routine are kept in embedded mobile device in Flash, be automatically loaded into SDRAM and run after system boot.Infrared transmitting tube 2 has good light gathering degree, launches Infrared 5, after shelter 6 reflects, is received by infrared sensor 3, according to the power of the Infrared 5 received, calculates the distance between infrared sensor 3 and shelter 6.Spacer assembly plays a protective role, for isolating the device such as infrared transmitting tube 2 and infrared sensor 3.Shelter 6, for Infrared 5 being reflected back, is convenient to infrared sensor 3 and is received.
As shown in Figure 2, software flow of the present invention mainly comprises three parts: the bee-line of infrared sensor 3 perception
and maximum distance
setting, the identification of moving direction of shelter 6, picture 7 and map zoom in or out the realization of function.After system normally starts, first set out the bee-line of infrared sensor 3 perception
and maximum distance
, then by the distance change between embedded mobile device 1 to shelter 6, judge the moving direction of shelter 6, finally realize picture 7 and map zooms in or out function.
As shown in Figure 3, when the shelters 6 such as people's palm upwards do pulling action, along with the distance between embedded mobile device 1 and shelter 6 becomes greatly, reducing gradually of picture 7 and map.
As shown in Figure 4, when the shelters 6 such as people's palm do racking downwards, along with the distance between embedded mobile device 1 and shelter 6 diminishes, the amplification gradually of picture 7 and map.
Claims (3)
1. the method for picture and map convergent-divergent is realized by infrared distance sensor, the method flow process mainly comprises three parts: the bee-line of setting infrared sensor perception and maximum distance, identify the moving direction of shelter, realize picture and map zooms in or out function, it is characterized in that: described the principle of infrared distance sensor and picture or map convergent-divergent algorithm routine closely to be combined, the distance between embedded mobile device to shelter is calculated according to the power of Infrared, thus confirm the moving direction of shelter, and then realize picture by the moving direction of shelter and map reduces or enlarging function.
2. the method being realized picture and map convergent-divergent by infrared distance sensor according to claim 1, be is characterized in that: upwards stretched by shelters such as people's palms, realize the reduction capability gradually of picture and map.
3. the method being realized picture and map convergent-divergent by infrared distance sensor according to claim 1, be is characterized in that: described is pushed downwards by shelters such as people's palms, realizes the enlarging function gradually of picture and map.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201410111665.XA CN104951049A (en) | 2014-03-25 | 2014-03-25 | Method for achieving automatic contraction and expansion of image and map by using infrared distance sensor |
Applications Claiming Priority (1)
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CN201410111665.XA CN104951049A (en) | 2014-03-25 | 2014-03-25 | Method for achieving automatic contraction and expansion of image and map by using infrared distance sensor |
Publications (1)
Publication Number | Publication Date |
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CN104951049A true CN104951049A (en) | 2015-09-30 |
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Family Applications (1)
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CN201410111665.XA Pending CN104951049A (en) | 2014-03-25 | 2014-03-25 | Method for achieving automatic contraction and expansion of image and map by using infrared distance sensor |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080230598A1 (en) * | 2002-01-15 | 2008-09-25 | William Kress Bodin | Free-space Gesture Recognition for Transaction Security and Command Processing |
CN102193708A (en) * | 2010-03-03 | 2011-09-21 | 上海三旗通信科技有限公司 | Method of realizing automatic zoom of pictures and maps through infrared distance sensor |
-
2014
- 2014-03-25 CN CN201410111665.XA patent/CN104951049A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080230598A1 (en) * | 2002-01-15 | 2008-09-25 | William Kress Bodin | Free-space Gesture Recognition for Transaction Security and Command Processing |
CN102193708A (en) * | 2010-03-03 | 2011-09-21 | 上海三旗通信科技有限公司 | Method of realizing automatic zoom of pictures and maps through infrared distance sensor |
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Application publication date: 20150930 |