CN103488354A - Mutual-control type synchronous electronic whiteboard system - Google Patents
Mutual-control type synchronous electronic whiteboard system Download PDFInfo
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- CN103488354A CN103488354A CN201310469038.9A CN201310469038A CN103488354A CN 103488354 A CN103488354 A CN 103488354A CN 201310469038 A CN201310469038 A CN 201310469038A CN 103488354 A CN103488354 A CN 103488354A
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Abstract
The invention discloses a mutual-control type synchronous electronic whiteboard system. The mutual-control type synchronous electronic whiteboard system comprises a collecting device and a writing device. The collecting device comprises a control signal sending module, a write signal receiving module, a light spot collecting module, a data processing module and a communication function module. The writing device comprises a control signal receiving module, a writing signal sending module, a light spot generating module, an operation mechanism, a power source management module and an intelligent control module. According to the mutual-control type synchronous electronic whiteboard system, through real-time communication between the writing device and the collecting device, state monitoring conducted in the moment when a user starts operation or ends operation is introduced, calculation comparison is conducted on the state existing when the user starts operation or ends operation and the state collected by an image sensor, the stability and the reliability of a light spot are determined through a series of algorithms, the user experience is improved, the position deviation between the first stroke and the last stroke, and the device power consumption is reduced.
Description
Technical field
The present invention relates to the synchronous electric whiteboard system of a kind of intercontrolling, belong to field of computer technology.
Background technology
Existing electric whiteboard system is used CMOS picture pick-up device, computing machine and related software, need to comprise projector, computing machine and projection screen or effect during use and be equal to other media with curtain.During electronic whiteboard work, at first by harvester, obtain the writing device physical location information, secondly convert physical location information to coordinate information, finally coordinate information is inputted to computing machine and formed person's handwriting signal or operation signal.
The equipment stray light is processed electronic whiteboard in real time, and writing device sends service data in work simultaneously, and harvester obtains positional information and obtains operation information simultaneously and distinguish stray light and writing device.Writing device and harvester are set up vertical linkage.When electronic whiteboard works, harvester collection position information and reception operation information; Harvester collects positional information simultaneously and operation information is valid function, otherwise device is processed in the stray light mode.
Harvester be take frame and is processed as unit, and writing device is operating as random generation; Harvester and writing device are not set up communication, and writing device produces the position of operation and may locate in the current collection point of harvester, and this process can cause that this collects the part operation signal, position deviation while causing thus operation first or shut-down operation; Writing device inside does not have the information collection function module, and writing device must keep duty, and the device power consumption is increased, and shortens device standby and service time.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to, provide a kind of intercontrolling synchronous electric whiteboard system, solve the first sum of and problem stroke-ending position deviation, and reduce equipment power dissipation.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the synchronous electric whiteboard system of a kind of intercontrolling, comprise harvester and writing device, and it is characterized in that, described harvester comprises:
The control signal sending module transmitted control signal to described writing device;
Detect the signal receiving module of writing that described writing device sends signal;
The hot spot acquisition module of acquisition frame signal;
The data processing module that the frame signal of hot spot acquisition module collection is carried out to computing;
Receive the communication function module of data processing module result;
Described writing device comprises:
For receiving the control signal receiver module of described control signal sending module transmitted signal;
To the described signal transmitting module of writing of writing the signal receiving module transmitted signal;
Produce the hot spot generation module of hot spot;
The operating mechanism that described writing device is write;
For described writing device provides the power management module of power supply;
To described control signal receiver module, write the intelligent control module that signal transmitting module, hot spot generation module, operating mechanism and power management module are controlled.
Further technical scheme is:
The control procedure of described harvester is:
(1) after harvester has started, control signal is constantly sent in control signal generation module circulation, is used for waking up and controlling writing device, writes the signal of writing that signal receiving module detecting writing device sends simultaneously;
(2) when detecting useful signal, data processing module starts to detect the acquisition frame signal of hot spot acquisition module simultaneously, if the operation signal of writing device is synchronizeed and is occurred with the frame signal of hot spot acquisition module, hot spot gather complete effectively, computing result is sent to communication function module of data processing module;
(3) if the asynchronous appearance of operation signal and frame signal, data processing module records current hot spot acquisition module and gathers the imageing sensor coordinate, comparison document image sensor coordinates and hot spot barycentric coordinates when present frame finishes, as differing, the two reaches setting value, this time gather hot spot effective, the data processing module computing also sends to communication function module, otherwise invalid, abandons the present frame image data;
(4) communication function module receives after the information of data processing module according to the system requirements organising data and is uploaded to drive software, produces Action Events.
The control procedure of described writing device is:
(1) writing device enters normal mode of operation, and intelligent control module is detected control signal receiver module and operating mechanism simultaneously;
(2) if writing device leaves operating area to be caused harvester can't receive the control signal that harvester sends reaching certain hour, writing device is controlled power management module makes device enter park mode, reduces the device power consumption, extension fixture service time;
(3), if writing device enters operational zone, when the control signal receiver module receives control signal, device is waken up and enters mode of operation; If the control signal receiver module receives the control signal that harvester sends, writing device remains under mode of operation, under this pattern, intelligent control module detects operating mechanism in real time, if any operating intelligent control module, controls hot spot generation module generation hot spot simultaneously and writes the lasting transmit operation information of signal transmitting module.
Described writing device is light pen.
The invention has the beneficial effects as follows: the present invention utilizes the real-time communication between writing device and harvester, introduced that the user starts or the status monitoring of end operation moment, and calculate and compare with present image sensor acquisition state, judge the reliability of hot spot by series of algorithms, promoted user's experience, solve the first sum of and stroke-ending position deviation, reduced equipment power dissipation.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the control principle block diagram of harvester of the present invention;
Fig. 3 is the control principle block diagram of present disclosure write device.
Embodiment
For further disclosing technical scheme of the present invention, describe embodiments of the present invention in detail below in conjunction with accompanying drawing: as shown in Figure 1, the synchronous electric whiteboard system of a kind of intercontrolling, comprise harvester and writing device, and described harvester comprises:
The control signal sending module transmitted control signal to described writing device;
Detect the signal receiving module of writing that described writing device sends signal;
The hot spot acquisition module of acquisition frame signal;
The data processing module that the frame signal of hot spot acquisition module collection is carried out to computing;
Receive the communication function module of data processing module result;
Described writing device comprises:
For receiving the control signal receiver module of described control signal sending module transmitted signal;
To the described signal transmitting module of writing of writing the signal receiving module transmitted signal;
Produce the hot spot generation module of hot spot;
The operating mechanism that described writing device is write;
For described writing device provides the power management module of power supply;
To described control signal receiver module, write the intelligent control module that signal transmitting module, hot spot generation module, operating mechanism and power management module are controlled.
As shown in Figure 2, the control procedure of described harvester is:
(1) after harvester has started, control signal is constantly sent in control signal generation module circulation, is used for waking up and controlling writing device, writes the signal of writing that signal receiving module detecting writing device sends simultaneously;
(2) when detecting useful signal, data processing module starts to detect the acquisition frame signal of hot spot acquisition module simultaneously, if the operation signal of writing device is synchronizeed and is occurred with the frame signal of hot spot acquisition module, hot spot gather complete effectively, computing result is sent to communication function module of data processing module;
(3) if the asynchronous appearance of operation signal and frame signal, data processing module records current hot spot acquisition module and gathers imageing sensor (CMOS) coordinate, comparison document image sensor (CMOS) coordinate and hot spot barycentric coordinates when present frame finishes, as differing, the two reaches setting value, this time gather hot spot effective, the data processing module computing also sends to communication function module, otherwise invalid, abandons the present frame image data;
(4) communication function module receives after the information of data processing module according to the system requirements organising data and is uploaded to drive software, produces Action Events.
As shown in Figure 3, the control procedure of described writing device is:
(1) writing device enters normal mode of operation, and intelligent control module is detected control signal receiver module and operating mechanism simultaneously;
(2) if writing device leaves operating area to be caused harvester can't receive the control signal that harvester sends reaching certain hour, writing device is controlled power management module makes device enter park mode, reduces the device power consumption, extension fixture service time;
(3), if writing device enters operational zone, when the control signal receiver module receives control signal, device is waken up and enters mode of operation; If the control signal receiver module receives the control signal that harvester sends, writing device remains under mode of operation, under this pattern, intelligent control module detects operating mechanism in real time, if any operating intelligent control module, controls hot spot generation module generation hot spot simultaneously and writes the lasting transmit operation information of signal transmitting module.
The present invention utilizes the real-time communication between writing device and harvester, introduced that the user starts or the status monitoring of end operation moment, and calculate comparison with present image sensor (CMOS) acquisition state, judge the reliability of hot spot by series of algorithms, promoted user's experience, solve the first sum of and stroke-ending position deviation, reduced equipment power dissipation.
More than, by description of listed embodiment, the basic ideas and basic principles of the present invention have been set forth.But the present invention never is limited to above-mentioned listed embodiment, every equivalent variations of doing based on technical scheme of the present invention, improvement and the deliberately of inferior quality behavior of change, all should belong to protection scope of the present invention.
Claims (4)
1. the synchronous electric whiteboard system of intercontrolling, comprise harvester and writing device, it is characterized in that, described harvester comprises:
The control signal sending module transmitted control signal to described writing device;
Detect the signal receiving module of writing that described writing device sends signal;
The hot spot acquisition module of acquisition frame signal;
The data processing module that the frame signal of hot spot acquisition module collection is carried out to computing;
Receive the communication function module of data processing module result;
Described writing device comprises:
For receiving the control signal receiver module of described control signal sending module transmitted signal;
To the described signal transmitting module of writing of writing the signal receiving module transmitted signal;
Produce the hot spot generation module of hot spot;
The operating mechanism that described writing device is write;
For described writing device provides the power management module of power supply;
To described control signal receiver module, write the intelligent control module that signal transmitting module, hot spot generation module, operating mechanism and power management module are controlled.
2. the synchronous electric whiteboard system of a kind of intercontrolling according to claim 1, it is characterized in that: the control procedure of described harvester is:
(1) after harvester has started, control signal is constantly sent in control signal generation module circulation, is used for waking up and controlling writing device, writes the signal of writing that signal receiving module detecting writing device sends simultaneously;
(2) when detecting useful signal, data processing module starts to detect the acquisition frame signal of hot spot acquisition module simultaneously, if the operation signal of writing device is synchronizeed and is occurred with the frame signal of hot spot acquisition module, hot spot gather complete effectively, computing result is sent to communication function module of data processing module;
(3) if the asynchronous appearance of operation signal and frame signal, data processing module records current hot spot acquisition module and gathers the imageing sensor coordinate, comparison document image sensor coordinates and hot spot barycentric coordinates when present frame finishes, as differing, the two reaches setting value, this time gather hot spot effective, the data processing module computing also sends to communication function module, otherwise invalid, abandons the present frame image data;
(4) communication function module receives after the information of data processing module according to the system requirements organising data and is uploaded to drive software, produces Action Events.
3. the synchronous electric whiteboard system of a kind of intercontrolling according to claim 1, it is characterized in that: the control procedure of described writing device is:
(1) writing device enters normal mode of operation, and intelligent control module is detected control signal receiver module and operating mechanism simultaneously;
(2) if writing device leaves operating area to be caused harvester can't receive the control signal that harvester sends reaching certain hour, writing device is controlled power management module makes device enter park mode, reduces the device power consumption, extension fixture service time;
(3), if writing device enters operational zone, when the control signal receiver module receives control signal, device is waken up and enters mode of operation; If the control signal receiver module receives the control signal that harvester sends, writing device remains under mode of operation, under this pattern, intelligent control module detects operating mechanism in real time, if any operating intelligent control module, controls hot spot generation module generation hot spot simultaneously and writes the lasting transmit operation information of signal transmitting module.
4. the synchronous electric whiteboard system of a kind of intercontrolling according to claim 1, it is characterized in that: described writing device is light pen.
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| CN201310469038.9A CN103488354B (en) | 2013-10-10 | 2013-10-10 | The synchronous electric whiteboard system of a kind of intercontrolling |
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| CN201310469038.9A CN103488354B (en) | 2013-10-10 | 2013-10-10 | The synchronous electric whiteboard system of a kind of intercontrolling |
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| US20040041786A1 (en) * | 2002-08-30 | 2004-03-04 | Casio Computer Co., Ltd. | Pointed position detection device and pointed position detection method |
| CN102135842A (en) * | 2011-04-06 | 2011-07-27 | 南京方瑞科技有限公司 | Synchronous light pen electronic whiteboard system |
| CN102147683A (en) * | 2010-02-07 | 2011-08-10 | 边鹏 | High-performance interactive electronic whiteboard based on bionic principle |
| CN102495698A (en) * | 2011-12-13 | 2012-06-13 | 南京邮电大学 | Intelligent electronic whiteboard system and light spot position extraction method based on intelligent electronic whiteboard system |
| CN102663690A (en) * | 2012-03-23 | 2012-09-12 | 南京芒冠光电科技股份有限公司 | Infrared ambient light filtering method |
| CN102915126A (en) * | 2012-09-29 | 2013-02-06 | 深圳创维数字技术股份有限公司 | Method, device and system of light ray remote-control positioning |
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2013
- 2013-10-10 CN CN201310469038.9A patent/CN103488354B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020021287A1 (en) * | 2000-02-11 | 2002-02-21 | Canesta, Inc. | Quasi-three-dimensional method and apparatus to detect and localize interaction of user-object and virtual transfer device |
| US20040041786A1 (en) * | 2002-08-30 | 2004-03-04 | Casio Computer Co., Ltd. | Pointed position detection device and pointed position detection method |
| CN102147683A (en) * | 2010-02-07 | 2011-08-10 | 边鹏 | High-performance interactive electronic whiteboard based on bionic principle |
| CN102135842A (en) * | 2011-04-06 | 2011-07-27 | 南京方瑞科技有限公司 | Synchronous light pen electronic whiteboard system |
| CN102495698A (en) * | 2011-12-13 | 2012-06-13 | 南京邮电大学 | Intelligent electronic whiteboard system and light spot position extraction method based on intelligent electronic whiteboard system |
| CN102663690A (en) * | 2012-03-23 | 2012-09-12 | 南京芒冠光电科技股份有限公司 | Infrared ambient light filtering method |
| CN102915126A (en) * | 2012-09-29 | 2013-02-06 | 深圳创维数字技术股份有限公司 | Method, device and system of light ray remote-control positioning |
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Address after: 210006, Nanjing, Jiangsu province Qinhuai district should be No. 388 street, 1865 Industrial Park, E13 building, two floor West Applicant after: Nanjing Magon Opto-Electrical Science and Technology Co., Ltd. Address before: 210006, Nanjing, Jiangsu province Qinhuai district should be No. 388 street, 1865 Industrial Park, E13 building, two floor West Applicant before: Nanjing Magon Opto-Electrical Science and Technology Co., Ltd. |
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