CN101094012A - Wireless transmission system of realtime image data - Google Patents
Wireless transmission system of realtime image data Download PDFInfo
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- CN101094012A CN101094012A CN 200610036103 CN200610036103A CN101094012A CN 101094012 A CN101094012 A CN 101094012A CN 200610036103 CN200610036103 CN 200610036103 CN 200610036103 A CN200610036103 A CN 200610036103A CN 101094012 A CN101094012 A CN 101094012A
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Abstract
Wireless transmission system includes host, image module, as well as first blue teeth module and second blue teeth module connected to the host and the image module respectively. Being in use for receiving data of image in real time, the host is in use for receiving data of image in real time, and transforming the received data of image to image. The image module is in use for converting image to data of image. First blue teeth module cooperated with second blue teeth implements wireless data transmission between the image module and the host. Control program of the image module is executed by blue teeth chip of second blue teeth module. The design can reduce delay caused by wireless transmission and raise transmission efficiency.
Description
Affiliated technical field
The present invention relates to a kind of wireless system for transmitting data, relate in particular to a kind of system that adopts Bluetooth technology to realize the realtime image data wireless transmission.
Background technology
Along with arrival of information age, the application of realtime image data transmission more and more widely, as the image data transmission between video camera and computer or the mobile phone etc.Because the realtime graphic information data amount is big, so the main wired connection mode that adopts of existing realtime image data transmission.
Bluetooth (Bluetooth) is a kind of short-distance wireless communication technology, is operated in 2.4G frequency range (industry-science-medical treatment).Utilize Bluetooth technology, can realize that low-cost wireless connects various device, transmission data.Bluetooth SPP (serial port agreement) is a kind of general Bluetooth transmission protocol, and it is fully transparent for the transmission of application layer data, therefore can be used on all serial ports.
Adopt bluetooth SPP Data Interchange Technology to realize the wireless transmission of realtime image data, have advantages such as flexibility is good, cost is low, easy to maintenance.But because bluetooth SPP Data Interchange Technology life period delay issue, be about 20 milliseconds the time of delay of each packet, and the CMOSImage Sensor of general image module (complementary metal oxide semiconductor imageing sensor) is in order to save hardware cost, do not dispose Flash (flash memory) memory device, so when the image module starts, need adopt the software handshake mode to set quantity of parameters, as resolution, color depth etc., these supplemental characteristics one come one toward linking up through Bluetooth transmission between main frame and image module, making the image module start needs the long period; In addition the back transmit image data of taking pictures also need the image module is controlled repeatedly during to main frame (giving an order) to obtain data up to complete receive a view data till, therefore also can cause a large amount of time lags, can not satisfy the demands of consumers.
Summary of the invention
The present invention seeks to provides a kind of wireless transmission system of realtime image data at above-mentioned deficiency.
For achieving the above object, wireless transmission system of realtime image data provided by the invention, comprise main frame, image module and respectively with the first bluetooth module and the second bluetooth module of main frame and image module wired connection.Described main frame is used to receive realtime image data, and converts the view data that receives to image.Described image module is used for image transitions is become the view data of electronic format.The described first bluetooth module cooperates the wireless data transmission that realizes between image module and the main frame with the second bluetooth module.The control program of described image module is carried out by the Bluetooth chip of the second bluetooth module.
As mentioned above, the present invention can be by directly carrying out with the second bluetooth module of image module wired connection to the control program of image module, and do not need main frame to control by the wireless transmission between the first bluetooth module and the second bluetooth module, main frame only need be responsible for receiving view data and converting view data to image getting final product, thereby reduce the delay that causes owing to wireless transmission, improve efficiency of transmission.
Description of drawings
In Figure of description:
Fig. 1 is the hardware schematic diagram of wireless transmission system of realtime image data of the present invention.
The description of reference numerals of each assembly is as follows among the figure:
Main frame 1 first bluetooth module 2
Embodiment
By describing technology contents of the present invention, structural feature in detail, being reached purpose and effect, below exemplify specific embodiment and cooperate the graphic detailed explanation of giving.
See also Fig. 1, wireless transmission system of realtime image data of the present invention comprises main frame 1, image module 3 and is used to realize the first bluetooth module 2 and the second bluetooth module 4 of realtime image data wireless transmission between main frame 1 and the image module 3.
Main frame 1, as computer, mobile phone etc. are used to receive realtime image data, and the data transaction that receives is become image.
The first bluetooth module 2 and main frame 1 wired connection makes main frame 1 have the Bluetooth wireless transmission function.If main frame 1 computer, the first bluetooth module 2 can be Bluetooth Dongle (Bluetooth adapter).In addition, main frame 1 is a Windows XP operating system as what use, need possess the later version of SP2 (services package 2) built-in bluetooth driver is just arranged, and the user also can install the driver that Bluetooth Dongle manufacturer provides voluntarily.If the mobile phone of main frame 1 tool Bluetooth function then must be supported Bluetooth AP I (application programming interfaces), make application program may command bluetooth equipment transmit data.
The second bluetooth module 4 and image module 3 wired connections makes image module 3 have the Bluetooth wireless transmission function.Wireless connections by 4 of the first bluetooth module 2 and the second bluetooth modules replace original wired connection mode, thereby realize the wireless transmission of view data between main frame 1 and image module 3.In this embodiment, the first bluetooth module 2 and the second bluetooth module 4 are to adopt the SPP agreement as host-host protocol, and the SPP agreement can send needed instruction when transmitting archives.
Add controlled function in the second bluetooth module 4 to image module 3.By the SPP software of the second bluetooth module 4 is further developed, will be embedded in the control program of image module 3 in the SPP program code of the described second bluetooth module 4, make it become the software that can directly control this image module 3 and transmitted image.Again with amended program code burning in the Bluetooth chip of the second bluetooth module 4.So, the second bluetooth module 4 promptly has the controlled function to image module 3, make the control program of image module 3 is carried out in the Bluetooth chip of the second bluetooth module 4 and sent out control command to image module 3 (as the setting to Backend and Sensor initiation parameter, and to the control command of acquisition image, transmission image etc.) to image module 3.On the other hand, by the affirmation information of image module 3 feedback, the second bluetooth module 4 that also only need send to its wired connection gets final product.
The contrast background technology, the present invention can be by directly carrying out with the second bluetooth module 4 of image module 3 wired connections to the control program of image module 3, and do not need main frame 1 to control by the wireless transmission of 4 of the first bluetooth module 2 and the second bluetooth modules, 1 needs of main frame are responsible for receiving view data and are converted view data to image and get final product, thereby reduce the delay that causes owing to wireless transmission, improve efficiency of transmission.
Claims (7)
1. wireless transmission system of realtime image data, comprise: main frame, image module and respectively with the first bluetooth module and the second bluetooth module of main frame and image module wired connection, wherein said main frame is used to receive realtime image data, and converts the view data that receives to image; Described image module is used for image transitions is become the view data of electronic format; The first bluetooth module cooperates the wireless data transmission that realizes between image module and the main frame with the second bluetooth module, it is characterized in that: the control program to the image module is carried out by the Bluetooth chip of the second bluetooth module.
2. wireless transmission system of realtime image data as claimed in claim 1 is characterized in that: be to adopt SPP (serial port agreement) as host-host protocol between the first bluetooth module and the second bluetooth module.
3. wireless transmission system of realtime image data as claimed in claim 2, it is characterized in that: the improvement of the second bluetooth module is by being that the SPP software of bluetooth is further developed, to be embedded in the SPP program code of the described second bluetooth module to the control program of image module, make it become the software that can directly control this image module and transmitted image, again with amended program code burning in the Bluetooth chip of the second bluetooth module of image module wired connection in.
4. wireless transmission system of realtime image data as claimed in claim 1 is characterized in that: the control command of image module is comprised setting to Backend (back-end processing unit) and Sensor initiation parameters such as (transducers).
5. wireless transmission system of realtime image data as claimed in claim 1 is characterized in that: the control command to the image module comprises instructions such as acquisition image, transmission image.
6. wireless transmission system of realtime image data as claimed in claim 1 is characterized in that: described main frame is a computer.
7. wireless transmission system of realtime image data as claimed in claim 1 is characterized in that: described main frame is the mobile phone of a tool Bluetooth function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610036103 CN101094012A (en) | 2006-06-23 | 2006-06-23 | Wireless transmission system of realtime image data |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610036103 CN101094012A (en) | 2006-06-23 | 2006-06-23 | Wireless transmission system of realtime image data |
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| CN101094012A true CN101094012A (en) | 2007-12-26 |
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| CN 200610036103 Pending CN101094012A (en) | 2006-06-23 | 2006-06-23 | Wireless transmission system of realtime image data |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553379A (en) * | 2014-12-15 | 2015-04-29 | 北京三快在线科技有限公司 | Bluetooth printing terminal with double Bluetooth communication modules |
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2006
- 2006-06-23 CN CN 200610036103 patent/CN101094012A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553379A (en) * | 2014-12-15 | 2015-04-29 | 北京三快在线科技有限公司 | Bluetooth printing terminal with double Bluetooth communication modules |
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Open date: 20071226 |