CN203661152U - Distance sensing device and mobile terminal - Google Patents
Distance sensing device and mobile terminal Download PDFInfo
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- CN203661152U CN203661152U CN201320775537.6U CN201320775537U CN203661152U CN 203661152 U CN203661152 U CN 203661152U CN 201320775537 U CN201320775537 U CN 201320775537U CN 203661152 U CN203661152 U CN 203661152U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The utility model discloses a distance sensing device and a mobile terminal with the distance sensing device. The distance sensing device comprises an infrared emission module, a camera, a digital signal processing module and a processor, wherein the infrared emission module emits infrared light, the camera collects an image of light spots formed by the infrared light, and sends the collected image to the digital signal processing module, the digital signal processing module obtains size information of the image, and sends the information to the processor, and if the image is smaller than a preset value, the processor switches off a backlight source. The distance sensing device uses the camera to collect the infrared light-spot image, and omits use of a distance sensor, thereby reducing the size of the mobile terminal, and decreasing the production cost of the mobile terminal.
Description
Technical field
The utility model relates to technical field of mobile terminals, particularly a kind of distance sensing device and mobile terminal.
Background technology
In existing mobile terminal, for fear of mobile terminal in call because touch of key-press by accident causes dropped calls, and reduce the energy consumption of mobile terminal in communication process, range sensor is set conventionally on mobile terminal.In the time of talking state, range sensor senses the distance of face and mobile phone screen, when distance is enough closely time, range sensor by feedback signal to processor.Processor receives after signal, will carry out screen locking and close backlight mobile terminal screen, to avoid mobile terminal to cause dropped calls because of false touch.Meanwhile, effectively reduced the energy consumption of mobile terminal.The defect of prior art is: range sensor is set in mobile terminal, has not only increased the volume of mobile terminal, and increased the production cost of product.
Utility model content
Main purpose of the present utility model is to provide a kind of distance sensing device, the production cost that is intended to dwindle the volume of mobile terminal and reduces product.
To achieve these goals, the utility model provides a kind of distance sensing device, comprise the infrared transmission module for launching infrared light, be used for the camera of the image that gathers infrared light spot, be used for the digital signal processing module of the size information of obtaining image, and for controlling the processor that backlight is bright or go out;
The output of described camera is connected with described digital signal processing module, and described digital signal processing module is connected with described processor, and described processor is connected with described backlight;
Described infrared transmission module transmitting infrared light, the hot spot that described camera forms infrared light carries out IMAQ, and the image information collecting is sent to described digital signal processing module, described digital signal processing module obtains the size information of image and the size information of image is sent to described processor; If image is less than preset value, backlight extinguishes described in described processor control.
Preferably, described infrared transmission module is the infrared lamp that can launch infrared light.
Preferably, described infrared transmission module and described camera are positioned at homonymy.
Preferably, described camera is arranged on described infrared transmission module around and close described infrared transmission module.
Preferably, described digital signal processing module comprises dsp processor, and described dsp processor is connected with the output of described camera, and described dsp processor is connected with described processor.
The utility model provides a kind of mobile terminal, described mobile terminal comprises distance sensing device, this distance sensing device comprises the infrared transmission module for launching infrared light, be used for the camera of the image that gathers infrared light spot, be used for the digital signal processing module of the size information of obtaining image, and for controlling the processor that backlight is bright or go out;
The output of described camera is connected with described digital signal processing module, and described digital signal processing module is connected with described processor, and described processor is connected with described backlight;
Described infrared transmission module transmitting infrared light, the hot spot that described camera forms infrared light carries out IMAQ, and the image information collecting is sent to described digital signal processing module, described digital signal processing module obtains the size information of image and the size information of image is sent to described processor; If image is less than preset value, backlight extinguishes described in described processor control.
The utility model arranges an infrared transmission module, camera, digital signal module and for controlling the processor that backlight is bright or go out on mobile terminal.When mobile terminal is during in talking state, infrared transmission module will be launched infrared light, and the hot spot that camera is beaten on human body or other foreign objects infrared light gathers.The light spot image collecting is sent to digital signal processing module.Digital signal processing module obtains the size information of image, and the size information of image is sent to processor.In the time that light spot image is less than the preset value in processor, processor control backlight extinguishes and makes mobile terminal screen enter lock-out state, thereby effectively reduces the energy consumption of mobile terminal, further avoids mobile terminal screen to cause dropped calls because of false touch.With prior art by range sensor carry out distance perspective should compared with, the utility model adopt camera carry out the collection of infrared light spot image, reduced the use of range sensor, thereby reduced the volume of mobile terminal, reduced the production cost of mobile terminal.
Accompanying drawing explanation
Fig. 1 is the module diagram of the utility model distance sensing device.
Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
With reference to Fig. 1, Fig. 1 is the module diagram of the utility model distance sensing device.A kind of distance sensing device that the present embodiment provides, this distance sensing device comprises the infrared transmission module 1 for launching infrared light, for gathering the camera 2 of infrared light spot image, for receiving the image information that camera 2 collects the digital signal processing module 3 that image is carried out to image processing, and for controlling the processor 5 that backlight 4 is bright or go out.Wherein, camera 2 has image information output, and the output of camera 2 is connected with digital signal processing module 3, and digital signal processing module 3 is connected with processor 5.Infrared transmission module 1 is launched infrared light, and the hot spot that camera 2 forms infrared light carries out IMAQ.The image collecting is sent to digital signal processing module 3 by camera 2, and digital signal processing module 3 obtains the size information of image, and the size information of image is sent to processor 5.Processor 5 is bright or go out according to the size information control backlight 4 of image.In the time that image is less than preset value, processor 5 is controlled backlight 4 and is extinguished.
The mobile terminals such as distance sensing device is mainly used in having the mobile terminal of call function and display screen, the panel computer that specifically comprise mobile phone, can converse.It should be noted that screen will enter lock-out state after the backlight 4 of mobile terminal screen extinguishes.In the present embodiment, when mobile terminal is during in talking state, infrared transmission module 1 is launched infrared light.Infrared light is beaten on human body or other foreign object surfaces and is formed hot spot.It should be noted that, mobile terminal is the closer to the surface of human body or other foreign objects, and hot spot is less.Camera 2 carries out IMAQ to infrared light spot, then the image collecting is sent to digital signal processing module 3.Digital signal processing module 3 obtains the size information of image, and the size information of image is sent to processor 5.Processor 5 is compared the image size information and the preset value that receive, if when image is less than preset value, processor 5 is controlled backlight 4 and extinguished and make the screen of mobile terminal enter lock-out state.
The utility model arranges an infrared transmission module 1, camera 2, digital signal module 3 and for controlling the processor 5 that backlight 4 is bright or go out on mobile terminal.When mobile terminal is during in talking state, infrared transmission module 1 will be launched infrared light, and camera 2 carries out the hot spot of infrared light being beaten on human body or other foreign objects IMAQ and the image collecting is sent to digital signal processing module 3.Digital signal processing module 3 obtains the size information of the image receiving, and the size information of image is sent to processor 5.Processor 5 is compared the image size information and the preset value that receive, if when image is less than preset value, processor 5 is controlled backlight 4 and is extinguished and make the screen of mobile terminal enter lock-out state, thereby effectively reduce the energy consumption of mobile terminal, and further avoid mobile terminal screen to cause dropped calls because of false touch.With prior art by range sensor carry out distance perspective should compared with, the utility model adopt camera 2 carry out the collection of infrared light spot image, reduced the use of range sensor, thereby reduced the volume of mobile terminal, reduced the production cost of mobile terminal.
Further, infrared transmission module 1 is for launching the infrared lamp of infrared light.In the time that mobile terminal enters talking state, infrared lamp transmitting infrared light, the infrared light that infrared lamp occurs forms hot spot on the surface of human body or other foreign objects.
Based on above-mentioned fact Example, further, infrared transmission module 1 is positioned at homonymy with camera 2.
In the present embodiment, gather in order to realize better the hot spot that camera 2 emits infrared transmission module 1, camera 2 is positioned at the same side with infrared transmission module 1.Preferably, camera 2 is positioned at mobile terminal screen side with infrared transmission module 1.When mobile terminal is during in talking state, the receiver of mobile terminal will be placed on by human body ear.Camera 2 and infrared transmission module 1 are located at a side of mobile terminal screen.Infrared light is beaten on human body and is formed hot spot, and camera 2 will carry out IMAQ to hot spot more easily.
Based on above-described embodiment, further, camera 2 is arranged on infrared transmission module 1 around and close infrared transmission module 1.
In the present embodiment, in order to improve the precision of whole distance sensing device, infrared transmission module 1 is located at mobile terminal screen one side with camera 2, and camera 2 is arranged on surrounding the close infrared transmission module 1 of infrared transmission module 1, thereby the goodness of fit of the light spot image that the light spot image that raising camera 2 gathers and infrared transmission module 1 are launched.Particularly, can make infrared transmission module 1 and camera 2 be arranged in same level direction or on same vertical direction.Specifically can set according to actual conditions.
Particularly, digital signal processing module 3 comprises dsp processor, and dsp processor is connected with the output of camera 2, and dsp processor is connected with processor 5.
The utility model also provides a kind of mobile terminal, and this mobile terminal comprises distance sensing device, and the structure of this distance sensing device can, with reference to above-described embodiment, not repeat them here.Naturally, because the mobile terminal of the present embodiment has adopted the technical scheme of above-mentioned distance sensing device, therefore this mobile terminal has all beneficial effects of above-mentioned distance sensing device.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (6)
1. a distance sensing device, it is characterized in that, comprise the infrared transmission module for launching infrared light, for gathering the camera of image of infrared light spot, be used for the digital signal processing module of the size information of obtaining image, and for controlling the processor that backlight is bright or go out;
The output of described camera is connected with described digital signal processing module, and described digital signal processing module is connected with described processor, and described processor is connected with described backlight;
Described infrared transmission module transmitting infrared light, the hot spot that described camera forms infrared light carries out IMAQ, and the image information collecting is sent to described digital signal processing module, described digital signal processing module obtains the size information of image and the size information of image is sent to described processor; If image is less than preset value, backlight extinguishes described in described processor control.
2. distance sensing device as claimed in claim 1, is characterized in that, described infrared transmission module is the infrared lamp that can launch infrared light.
3. distance sensing device as claimed in claim 1 or 2, is characterized in that, described infrared transmission module and described camera are positioned at homonymy.
4. distance sensing device as claimed in claim 3, is characterized in that, described camera is arranged on described infrared transmission module around and close described infrared transmission module.
5. distance sensing device as claimed in claim 1, is characterized in that, described digital signal processing module comprises dsp processor, and described dsp processor is connected with the output of described camera, and described dsp processor is connected with described processor.
6. a mobile terminal, is characterized in that, comprises the distance sensing device as described in claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775537.6U CN203661152U (en) | 2013-11-29 | 2013-11-29 | Distance sensing device and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775537.6U CN203661152U (en) | 2013-11-29 | 2013-11-29 | Distance sensing device and mobile terminal |
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| CN203661152U true CN203661152U (en) | 2014-06-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301460A (en) * | 2014-09-22 | 2015-01-21 | 惠州Tcl移动通信有限公司 | Mobile phone and method for automatically answering call of mobile phone |
| CN106791156A (en) * | 2017-01-03 | 2017-05-31 | 京东方科技集团股份有限公司 | A kind of display device and its control method |
| CN110726950A (en) * | 2019-10-15 | 2020-01-24 | 深圳市创荣发电子有限公司 | Device and method for detecting working state of launch tube |
| CN111243553A (en) * | 2018-11-29 | 2020-06-05 | 北京小米移动软件有限公司 | Control method and device of terminal screen and storage medium |
| CN113542554A (en) * | 2021-06-24 | 2021-10-22 | 上海创功通讯技术有限公司 | Camera module, mobile terminal and control method thereof |
-
2013
- 2013-11-29 CN CN201320775537.6U patent/CN203661152U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301460A (en) * | 2014-09-22 | 2015-01-21 | 惠州Tcl移动通信有限公司 | Mobile phone and method for automatically answering call of mobile phone |
| CN106791156A (en) * | 2017-01-03 | 2017-05-31 | 京东方科技集团股份有限公司 | A kind of display device and its control method |
| CN111243553A (en) * | 2018-11-29 | 2020-06-05 | 北京小米移动软件有限公司 | Control method and device of terminal screen and storage medium |
| CN110726950A (en) * | 2019-10-15 | 2020-01-24 | 深圳市创荣发电子有限公司 | Device and method for detecting working state of launch tube |
| CN113542554A (en) * | 2021-06-24 | 2021-10-22 | 上海创功通讯技术有限公司 | Camera module, mobile terminal and control method thereof |
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