CN202102697U - Wireless automatic detection combined screen display device - Google Patents
Wireless automatic detection combined screen display device Download PDFInfo
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- CN202102697U CN202102697U CN2011201677603U CN201120167760U CN202102697U CN 202102697 U CN202102697 U CN 202102697U CN 2011201677603 U CN2011201677603 U CN 2011201677603U CN 201120167760 U CN201120167760 U CN 201120167760U CN 202102697 U CN202102697 U CN 202102697U
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- dma
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- screen
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- automatic detection
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Abstract
The utility model provides a wireless automatic detection combined screen display device, which comprises a distance sensor, a handheld device CPU (central processing unit), a memory unit, a DMA (direct memory access) device, a wireless communication transmitting and receiving module, a display control unit and a screen. The distance sensor, the memory unit and the wireless communication transmitting and receiving module are connected with the handheld device CPU, the CPU is respectively connected with the DMA device and the display control unit, the DMA device is respectively connected with the wireless communication transmitting and receiving module and the display control unit, the display control unit is connected with the screen, the wireless communication transmitting and receiving module is connected with the memory unit, and the memory unit is connected with the DMA device. The wireless automatic detection combined screen display device can display a video or picture in a combined manner by the aid of multiple handheld terminal devices, greatly increases display area and the quantity of effective pixels, and improves experience of users.
Description
[technical field]
The utility model relates to the handheld mobile device technical field, particularly a kind of wireless automatic detection screen associating display device.
[background technology]
DMA (Direct Memory Access) is a direct memory access, and its DMA principle is: DMA is the valuable feature of all modern computers, and he allows the hardware unit of friction speed to link up, and need not depend on a large amount of interrupt load of CPU.Otherwise, CPU need from the source the document copying of each fragment to working storage, write back to new place to them once more then.In this time, CPU just can't use for other work.The DMA transmission copies to another one with a memory field from a device importantly.When this transmission action of CPU initialization, transmission action itself is to be carried out and accomplished by dma controller.Typical example be exactly the block that moves an external memory to chip internal faster internal memory go.Similarly be that such operation does not let processor work delay, can be gone to handle other work on the contrary by scheduling again.The DMA transmission is very important for high-effect embedded system algorithm and network, and it is commonly used in the handheld device.
Vision is that the mankind obtain the most important channel of information, particularly when electronic equipment and user carry out man-machine interaction, shows that intuitively output is most convenient and interactive mode the most intuitively.
Particularly along with the technological high speed development of current video; High definition standards such as video display format 1080p are more and more universal; The above photo of the millions pixel of high-res also gets more and more, but common mobile terminal display screen curtain does not all reach such demonstration resolution, when needs show HD video or high definition picture; Can only be through showing again behind downscaled images and the video; Such procedure for displaying has reduced information content of image, greatly reduces the effect and the user experience of demonstration, and the user can't experience high definition and than the difference of low-res video.
Screen is the main means that information is obtained as the carrier of vision, obtains the demand that bigger visual range and visual effect are most users.And be subject to human hand size, determined that the volume of handheld device can not be too big.But people hope that but screen is the bigger the better, and displayable valid pixel is The more the better. because the human quantity of information that obtains from vision is much larger than other medium channels.Therefore how solving this is technician's pursuit always to contradiction.
In prior art, the video wall technology is to solve to enlarge display area and a kind of solution that increases valid pixel, but on mobile terminal device, does not still have a kind of effective solution.Existing handheld device all is single screen display, and the screen display area of handheld terminal is little, poor user experience.
[utility model content]
The technical matters that the utility model will solve; Be to provide a kind of wireless automatic detection screen associating display device; Having realized that many hand-held terminal devices can be united shows a video or picture, significantly increase display area and valid pixel quantity, improve user's experience.
The utility model is achieved in that a kind of wireless automatic detection screen associating display device; Comprise range sensor, handheld device CPU, storage unit, DMA, radio communication transceiver module, indicative control unit and screen, said range sensor, storage unit, radio communication transceiver module all are connected with said handheld device CPU; Said CPU is connected with said DMA, indicative control unit respectively; Said DMA is connected with said radio communication transceiver module, indicative control unit respectively; Said indicative control unit is connected with said screen; Said radio communication transceiver module is connected with storage unit; Said storage unit is connected with said DMA.
Further, said range sensor comprises four range sensors that are distributed in the four direction up and down of said equipment respectively.
The advantage of the utility model is: the utility model can be united through many hand-held terminal devices and shown a video or picture, significantly increase display area and valid pixel quantity.Pass through the relative position of radio communication transceiver module automated wireless identification master-slave equipment between its equipment; And image segmentation is carried out in the control of the CPU through equipment automatically; To need the images displayed data transmission to get into screen for the indicative control unit of equipment through DMA again shows; It is united and shows a video or picture, improves user's experience.
[description of drawings]
Fig. 1 is the wireless automatic detection screen associating display device structure synoptic diagram of the utility model.
Fig. 2 is the distribution plans of four range sensors of the utility model in display device.
[embodiment]
See also illustrated in figures 1 and 2; The wireless automatic detection screen associating display device of the utility model; Comprise range sensor, handheld device CPU, storage unit, DMA, radio communication transceiver module, indicative control unit and screen, said range sensor, storage unit, radio communication transceiver module all are connected with said handheld device CPU; Said CPU is connected with said DMA, indicative control unit respectively; Said DMA is connected with said radio communication transceiver module, indicative control unit respectively; Said indicative control unit is connected with said screen; Said radio communication transceiver module is connected with storage unit; Said storage unit is connected with said DMA; Range sensor described in the present embodiment comprises four range sensors that are distributed in the four direction up and down of said equipment respectively, and wherein the particular location of four range sensors in display device is as shown in Figure 2.
Handheld device CPU wherein: be responsible for analyzing the data and the data that the radio communication transceiver module receives of range sensor, and control DMA carries out data transmission, the display control information of also being responsible for indicative control unit disposes;
Range sensor: be responsible for the checkout equipment range information of four direction upper periphery object on every side;
DMA (direct memory access): be responsible for configuration, the data of specified amount be transferred to the destination of appointment from the source end of appointment according to CPU;
Storage unit: be responsible for all data of storage, comprise view data to be shown;
The radio communication transceiver module: it is mutual that responsible and other equipment carry out radio communication;
Indicative control unit: become the needed sequential data stream of screen display after being responsible for advancing processing to view data to be shown, and the data after will handling output to screen display;
Screen: the display data stream of being responsible for indicative control unit is provided is shown on the screen.
The idiographic flow of the utility model is operated as follows:
1. after hardware began to work on power, each circuit began operate as normal;
2. the range sensor on the equipment constantly detects the distance of object on the four direction, and detected value is sent to CPU;
3. when detecting on the four direction, four range sensors all do not have object (just apart from infinity); When perhaps the distance of object is all greater than the distance threshold set (distance threshold be around CPU judges object whether enough near and can get into a distance value of associating flow for displaying), CPU controls DMA and carries and get into screen display (this is single screen display mode) after image to be shown is sent to indicative control unit;
4. if a distance that around detecting object is arranged is less than distance threshold arbitrarily in four range sensors, then CPU can control the handheld mobile device around the search of radio communication transceiver module; If do not search other equipment would think around object be not other mobile devices, display packing is consistent with step 3; If search other mobile devices, then can initiate the radio communication connection request;
5. after two mobile devices are set up wireless connections, the user need be with wherein a selection be as main frame, and another is as slave;
6. after the setting of principal and subordinate's machine finishes; Slave is sent to main frame with that direction that has object distance to be less than distance threshold in four range sensors of this machine; Simultaneously also with the screen resolution direct information main frame of slave; Main frame is according to there being object distance to be less than the orientation of distance threshold in four range sensors of this machine then, and combine that slave transmits around the azimuth information of object, can judge the relative position of main frame and slave; (if during object, the distance value of a more than sensor then needs the user manually to select the position of other mobile devices with respect to this machine less than threshold value around collecting for main frame or slave)
7. after main frame has been judged the relative position of principal and subordinate's machine; The CPU of main frame can be cut apart image to be displayed according to the resolution of two equipment of principal and subordinate's machine and the relative position of principal and subordinate's machine; And cut apart finish the back DMA is configured; The parts of images that main frame need be shown is sent to the indicative control unit of main frame, and the parts of images that slave need be shown is sent to the radio communication Transmit-Receive Unit, through the radio communication Transmit-Receive Unit view data is sent to from machine equipment;
From machine equipment after receiving the view data that main frame sends, the CPU of slave can dispose the image to be displayed data that main frame that DMA receives wireless transmit/receive units sends here and be sent to storage unit; After receiving frame image to be shown, CPU disposes and gets into screen display after view data in the DMA carrying storage unit is sent to indicative control unit;
9., show that then desired data stream constantly repeats always as stated if the relative position of principal and subordinate's machine is constant; When the main frame slave apart from expansion, after greater than distance threshold, associating display mode cancellation becomes single screen display mode again, gets back to step 2.
The above is merely the preferred embodiment of the utility model, and all equalizations of being done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model.
Claims (2)
1. a wireless automatic detection screen is united display device; It is characterized in that: comprise range sensor, handheld device CPU, storage unit, DMA, radio communication transceiver module, indicative control unit and screen, said range sensor, storage unit, radio communication transceiver module all are connected with said handheld device CPU; Said CPU is connected with said DMA, indicative control unit respectively; Said DMA is connected with said radio communication transceiver module, indicative control unit respectively; Said indicative control unit is connected with said screen; Said radio communication transceiver module is connected with storage unit; Said storage unit is connected with said DMA.
2. wireless automatic detection screen associating display device according to claim 1, it is characterized in that: said range sensor comprises four range sensors that are distributed in the four direction up and down of said equipment respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201677603U CN202102697U (en) | 2011-05-24 | 2011-05-24 | Wireless automatic detection combined screen display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201677603U CN202102697U (en) | 2011-05-24 | 2011-05-24 | Wireless automatic detection combined screen display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202102697U true CN202102697U (en) | 2012-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011201677603U Expired - Lifetime CN202102697U (en) | 2011-05-24 | 2011-05-24 | Wireless automatic detection combined screen display device |
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| Country | Link |
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| CN (1) | CN202102697U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298917A (en) * | 2011-05-24 | 2011-12-28 | 福州瑞芯微电子有限公司 | Wireless automatic detection screen associated display method and devices |
| CN103442243A (en) * | 2013-07-31 | 2013-12-11 | 北京智谷睿拓技术服务有限公司 | Portable type 3D displaying device and 3D displaying method |
| CN104333650A (en) * | 2014-09-12 | 2015-02-04 | 深圳市中兴移动通信有限公司 | Screen sharing method, system and mobile terminal |
| CN104580724A (en) * | 2014-12-26 | 2015-04-29 | 上海创功通讯技术有限公司 | Display device and method for playing image data in mobile phone through same |
-
2011
- 2011-05-24 CN CN2011201677603U patent/CN202102697U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298917A (en) * | 2011-05-24 | 2011-12-28 | 福州瑞芯微电子有限公司 | Wireless automatic detection screen associated display method and devices |
| CN102298917B (en) * | 2011-05-24 | 2013-06-19 | 福州瑞芯微电子有限公司 | Wireless automatic detection screen associated display method and devices |
| CN103442243A (en) * | 2013-07-31 | 2013-12-11 | 北京智谷睿拓技术服务有限公司 | Portable type 3D displaying device and 3D displaying method |
| CN104333650A (en) * | 2014-09-12 | 2015-02-04 | 深圳市中兴移动通信有限公司 | Screen sharing method, system and mobile terminal |
| CN104580724A (en) * | 2014-12-26 | 2015-04-29 | 上海创功通讯技术有限公司 | Display device and method for playing image data in mobile phone through same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 350000 Fuzhou Gulou District, Fujian, software Avenue, building 89, No. 18 Patentee after: FUZHOU ROCKCHIP ELECTRONICS CO., LTD. Address before: 350000 Fuzhou Gulou District, Fujian, software Avenue, building 89, No. 18 Patentee before: Fuzhou Rockchip Semiconductor Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 350000 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Patentee after: Ruixin Microelectronics Co., Ltd Address before: 350000 building, No. 89, software Avenue, Gulou District, Fujian, Fuzhou 18, China Patentee before: Fuzhou Rockchips Electronics Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120104 |