CN1299192C - Remote-wireless controller for computer - Google Patents
Remote-wireless controller for computer Download PDFInfo
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- CN1299192C CN1299192C CNB2005100115383A CN200510011538A CN1299192C CN 1299192 C CN1299192 C CN 1299192C CN B2005100115383 A CNB2005100115383 A CN B2005100115383A CN 200510011538 A CN200510011538 A CN 200510011538A CN 1299192 C CN1299192 C CN 1299192C
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Abstract
The present invention discloses a long distance wireless control device of a computer, which belongs to the technical field of long distance combination laser spots and wireless signal control computers and is characterized in that the wireless control device comprises a projector, a camera used for capturing a projection screen, a laser in which a laser generating and transmitting module and a radio coding and transmitting module are arranged, a receiver used for receiving a wireless signal sent out by the laser pen, and a computer in which a signal processing program, a laser spot identification program and a mouse event synthesis program are stored, wherein the wireless signal receiver comprises a wireless signal receiving and decoding module, a high-low level converting circuit, a processing circuit of a single chip computer and a USB transmission interface module. The wireless control device of the present invention has visual and convenient use. A user can easily complete all operation of a common mouse control computer. The wireless control device uses a coding/decoding wireless signal to transmit information, and therefore, no interference can occur between contiguous users. The user can control the computer at further distance and in any position in space.
Description
Technical field:
A kind of remote-wireless controller for computer relates to remote technical field in conjunction with laser spots and wireless signal control computer.
Technical background:
Traditional control computer device is keyboard and mouse, and these two kinds of equipment all are connected with main frame by data line, when carrying out when mutual, before the user must be sitting in computing machine.What the present invention provided is a kind of device of remote-wireless control computer, so-called remote-wireless control computer is meant that the user passes through certain interactive device operational computations machine in the place away from main frame, this interactive device does not have data line to link to each other with computing machine, sends control information by wireless signal.Increasingly extensive along with the computing machine usable range, the remote-wireless control computer has had increasing application prospect, for example in lyceum, give lessons to the classmate teacher, the commander finishes the switching of information etc. in command post, under these use scenes, the user wish in the optional position in space can both be freely control computer.
The device of existing controlled in wireless computing machine mainly contains wireless mouse and is used for controlling the telepilot that multimedia courseware is play.
The use-pattern and the common mouse of wireless mouse are identical, realize control by rolling mouse in one plane to mouse in the computing machine, the place that is different from common mouse is to use radio frequency or infrared mode to come transmitting control information, and effective control distance is generally 2 meters.The weak point of wireless mouse is:
1. command range is limited, signal spans barrier ability.The effective control distance of wireless mouse is generally 2 meters, is a teacher when giving lessons in lyceum often apart from more than 10 meter in computer, and wireless mouse can't meet the demands.Especially, adopt the wireless mouse of Infrared Transmission pattern very high, and can't pass through barriers such as human body, teaching aid sending the sense requirement.
2. controlling computer is directly perceived inadequately, by the mobile cursor of mouse that be mapped as screen on of mouse at the mobile or roller on the surface level.The user need disperse a lot of notices to finish the control of mouse.
3. price height, volume is bigger than normal, can not use simultaneously with common mouse.General computer has all disposed common mouse, and the user can not buy new mouse for the demand that only satisfies low coverage controlled in wireless computer.And the wireless mouse volume is bigger than normal, and is convenient in hand held not as laser pen, is worth little in the field of remote-controlled operation computer.
The telepilot volume that multimedia courseware is play is less, uses also easily, but its function is very limited, and the page turning up and down that is only limited to the control multimedia courseware is controlled, and can't satisfy the further requirement of controlling computer of user.Move as mouse beacon, double-click to start application program, open the right mouse button menu and select etc., these function multimedia telepilots all can't be realized.
Summary of the invention:
At the deficiencies in the prior art and defective, the invention provides a kind of can be at the device of remote-wireless control computer, this device can be in 150 meters the far distance controlled computing machine, and it is powerful, can realize the operation that can finish of useful common mouse, move as mouse beacon, double-click and start application program, open the right mouse button menu, to any position, this device is easy to carry in addition the icon drag on the screen, and operation is directly perceived, cheap, and can use common mouse simultaneously.In places such as the demonstration Room, lyceum, auditorium, command posts good application prospects is arranged.
The invention is characterized in: contain:
Projector,
Camera is used to catch the projection screen image, and picture information is transferred to computing machine;
Laser pen, built-in laser produces and transmitter module, and emitted laser is pointed to projection screen;
Built in radio coding and transmitter module pass to wireless signal receiver with the information coding of user's input and with radio signal;
Wireless signal receiver is used to receive the radio signal that above-mentioned laser pen sends, and radio signal is converted into digital signal exports to computing machine; This wireless signal receiver comprises radio reception and decoder module, the high-low level change-over circuit; Described high-low level change-over circuit output terminal connects the single-chip microcomputer that is solidified with signal handler, and the signal output part of described single-chip microcomputer connects the data acquisition end of described computing machine by output interface;
Computing machine receives the screen image that camera transmits, and gathers the digital signal that wireless signal receiver transmits, and carries out signal Processing, the identification of laser spots coordinate and mouse event compose operation.
The present invention has the following advantages and beneficial effect: remote-wireless control computer device provided by the invention, can use apart from (in 150 meters) big, and can substitute all functions of common mouse fully.The user uses the position of laser pen emitted laser point direct mouse beacon on projection screen and moves, and is directly perceived and convenient.Integrated left button and right button can be simulated common mouse fully on the laser pen left button and right button.The user uses the present invention can easily finish all operations of common mouse control computer, move as mouse beacon, double-click the startup application program, open right mouse button menu and selection, the icon drag on the screen to any position, to the page turning control of presentation slides etc.In addition, this device adopts the transmission of wireless signals information of encoding and decoding, and is noiseless between the adjacent user, and wireless signal can across obstacle, and the user can finish the control to computing machine in any position in space.
Description of drawings:
Fig. 1 is a general structure synoptic diagram of the present invention;
Fig. 2 is wireless signal receiver workflow diagram among the present invention;
Fig. 3 is the structural representation of laser pen among the present invention;
Fig. 4 is wireless signal receiver circuit theory diagrams among the present invention, and Fig. 4 a is the schematic diagram of radio reception and processing module and high-low level change-over circuit, and Fig. 4 b is the schematic diagram of single-chip microcomputer treatment circuit, and Fig. 4 c is the schematic diagram of usb circuit;
Fig. 5 is single-chip microcomputer internal processes process flow diagram on the wireless signal receiver among the present invention;
Fig. 6 is the built-in computer software program flow chart.
Embodiment:
This device comprises a projector, a camera that is used for catching projection screen, a built-in laser produces the laser pen of transmitter module and radio coding and transmitter module, be used for receiving the receiver that laser pen sends electric signal, and the inner computing machine that has signal Processing, laser spots identification and mouse event synthesis program.Describedly be used for receiving the receiver that laser pen sends electric signal and comprise that radio signal receives and decoder module, receive the high-low level change-over circuit that links to each other with the decoder module output terminal with radio signal, the single-chip microcomputer treatment circuit that is solidified with signal Processing and control USB chip program that links to each other with high-low level change-over circuit output terminal, the USB transmission interface module that links to each other with the single-chip microcomputer output terminal; Described computing machine links to each other with USB transmission interface module by USB interface.
Below in conjunction with accompanying drawing principle of the present invention and structure are described further.
Fig. 1 is the general structure synoptic diagram of this device, comprise camera 1, projector 2, inside is integrated with the laser pen 3 of laser emitting module and wireless signal transmitting module, be used for receiving the receiver 4 that laser pen transmits, and the inner computing machine 5 that has signal Processing, laser spots identification and mouse event synthesis program.Projector 2 arrives the image projection of graphoscope on the giant-screen (or metope), the user uses laser pen 3 emission laser spots to giant-screen (or metope), computing machine 5 obtains the image information on the giant-screen (or metope) by camera 1 and identifies the position of laser spots, positions it as mouse coordinates in the computing machine by coordinate transform.In addition, laser pen 3 can also send the wireless signal of simulation common mouse left button and right button action, signal receiver 4 receives the wireless signal of laser pen 3 and gives computing machine 5 it by the USB oral instructions, computing machine 5 synthesizes a complete mouse event in conjunction with the left mouse button or the right button button actions information of mouse coordinates information that obtains by camera 1 and receiver 4 transmission, thereby finishes the control to computing machine 5.
Detailed operation principle of the present invention is: the user uses laser pen to send laser spots to giant-screen (or metope), camera obtains the image information on the giant-screen (or metope) and it is sent to computing machine, and the procedure identification in the computing machine goes out laser spots and with respect to the coordinate of giant-screen (or metope) and by coordinate transform it is converted to mouse coordinates on the graphoscope.On the other hand, the user uses left button button or the right button button on the laser pen, with the left mouse button or the right button of being simulated " press ", the action message of " upspringing " sends by radio coding and transmitter module; In 150 meters scopes, wireless signal receiver can receive signal.The principle of work of wireless signal receiver as shown in Figure 2, radio signal on the receiver receives with processing module and receives radio signal and the decoding that laser pen sends, then decoded signal is passed to the high-low level change-over circuit, the high-low level change-over circuit is that low level is passed to single-chip microcomputer then as input signal with the conversion of signals of receiving, single-chip microcomputer sends to USB transmission interface module after with this signal Processing, and USB transmission interface module is transferred to computing machine with signal by USB interface at last; The calling system function was modeled as " pressing ", " upspringing " action of common mouse left button or right button with it after computing machine was received this signal, just can synthesize a complete mouse event in conjunction with the mouse coordinates information that just obtains at the beginning again, thereby in all functions of remote-wireless realization common mouse, control computer easily and intuitively.
The structure of described laser pen as shown in Figure 3, this laser pen comprises built-in laser transmission circuit and built-in radio transmission module two parts.Laser transmission circuit adopts common laser power valve (3.0V, 20mA, wavelength 650nm) in the present embodiment, and the radio coding transmitter module uses common wireless encoding transmitter module SB200-4Aa on the market.Three button A are arranged, B, C on the pen; Wherein A and B distinguish button a and the b on the corresponding SB200-4Aa module, and button C is the Laser emission switch.Send the analog mouse left button when pressing A and " press " radio signal of action, then send the radio signal that the analog mouse left button " is upspring " and moved when unclamping A, send the analog mouse right button when pressing B and " press " signal of action, unclamp B and send the signal that the analog mouse right button " is upspring " and moved.Only launch laser when pressing C.Radio signal behind the coding that this laser pen sends can be received by the wireless signal receiver in 150 meters scopes.
The circuit connecting relation of the described receiver that is used for receiving the laser pen transmitted radio signal is shown in Fig. 4 A, 4B and 4C, and this circuit can be divided into four parts: radio reception and decoder module, high-low level change-over circuit, single-chip microcomputer treatment circuit, USB transmission interface.Wherein, radio reception and decoder module are first, adopt common wireless receiving and decoder module CZS-8 (corresponding) on the market in the present embodiment with the radio coding transmitter module on the laser pen, what the high-low level change-over circuit used is the 74LS00 chip, what the single-chip microcomputer treatment circuit used is the AT89C52 chip, and what the USB transmission interface used is the PDIUSBD12 chip.Signal processing is, wireless receiving and decoder module receive radio signal and the decoding that laser pen sends, corresponding output pin is set to high level, this high level becomes low level signal by the high-low level change-over circuit, single-chip microcomputer receives this low level signal, and the control USB interface reaches computing machine with this signal.Annexation between them is: the pin 6 of radio reception and decoder module connects+5V, pin 7 ground connection, pin 4 connects 74LS00 pin of chip 1 and pin 4 in the high-low level change-over circuit respectively with pin 5, the wireless signal that receives is outputed to the high-low level change-over circuit respectively, 74LS00 pin of chip 3 and pin 6 connect the signal input part (pin 1 and pin 2) of AT89C52 chip in the single-chip microcomputer treatment circuit respectively in the high-low level change-over circuit, carry out signal Processing in single-chip microcomputer.AT89C52 pin of chip 32-39 respectively with usb interface module in the 1-4 of PDIUSBD12 chip be connected with 6-9, carry out data transmission, the pin 7 of AT89C52,8,12,13,16,17,30 respectively with 11 of PDIUSBD12,20,14,12,16,15,10 are connected, and carry out relevant initialization and transmission control.All the other NM electrical equipments belong to the peripheral circuit of AT89C52 chip and PDIUSBD12 chip.
Single-chip microcomputer internal program process flow diagram as shown in Figure 5, auto-initiation IO mouth timer and interruption behind the single-chip microcomputer electrifying startup, setting up usb bus by PDIUSBD12 chip and computing machine is connected, program enters circulation then, whether inquiry has signal to receive, if have then judge and send corresponding signal encoding, and be uploaded to computing machine, thereby finish the reception and the transmission of signal by USB interface.If do not receive signal then continue cyclic query.
Program flow diagram in the computing machine starts laser spots identification thread and response signal receiving thread as shown in Figure 6 automatically simultaneously after the program run.In laser spots identification thread, computing machine reads in large-screen image information from camera, and therefrom finds out the red laser point, by coordinate transform, orientates mouse coordinates as; In the response signal receiving thread, computing machine cyclic query USB mouth input signal, if signal input arranged then be modeled as corresponding mouse action, and and the mouse coordinates that in laser spots identification thread, obtains combine, synthesize complete mouse event.Thereby finish control to computing machine.
Claims (6)
1, a kind of remote-wireless controller for computer is characterized in that, contains:
Projector,
Camera is used to catch the projection screen image, and picture information is transferred to computing machine;
Laser pen, built-in laser produces and transmitter module, and emitted laser is pointed to projection screen;
Built in radio coding and transmitter module pass to wireless signal receiver with the information coding of user's input and with radio signal;
Wireless signal receiver is used to receive the radio signal that above-mentioned laser pen sends, and radio signal is converted into digital signal exports to computing machine; This wireless signal receiver comprises radio reception and decoder module, the high-low level change-over circuit; Described high-low level change-over circuit output terminal connects the single-chip microcomputer that is solidified with signal handler, and the signal output part of described single-chip microcomputer connects the data acquisition end of described computing machine by output interface;
Computing machine receives the screen image that camera transmits, and gathers the digital signal that wireless signal receiver transmits, carry out signal Processing,
2, remote-wireless controller for computer as claimed in claim 1 is characterized in that, what described radio reception and decoder module adopted is the CZS-8 module.
3, remote-wireless controller for computer as claimed in claim 1 is characterized in that, what described high-low level change-over circuit adopted is the 74LS00 chip.
4, remote-wireless controller for computer as claimed in claim 1 is characterized in that, what described single-chip microcomputer adopted is the AT89C52 chip.
5, remote-wireless controller for computer as claimed in claim 1 is characterized in that, the signal output part of described single-chip microcomputer is the data acquisition end that the USB interface of PDIUSBD12 chip connects described computing machine by adopting model.
6, remote-wireless controller for computer as claimed in claim 1 is characterized in that, the radio coding that described laser pen is built-in and the model of transmitter module are SB200-4Aa.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005100115383A CN1299192C (en) | 2005-04-08 | 2005-04-08 | Remote-wireless controller for computer |
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| CNB2005100115383A CN1299192C (en) | 2005-04-08 | 2005-04-08 | Remote-wireless controller for computer |
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| CN1299192C true CN1299192C (en) | 2007-02-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788857B (en) * | 2009-01-22 | 2012-07-25 | 纬创资通股份有限公司 | Input system for electronic device and relevant method |
| CN102262733B (en) * | 2010-05-28 | 2014-03-19 | 株式会社理光 | Laser point detection method and apparatus thereof |
| CN102053703A (en) * | 2010-11-24 | 2011-05-11 | 河海大学 | Visual human-machine interaction system |
| CN102253737B (en) * | 2011-05-31 | 2013-07-17 | 王石 | Realizing method of screen-vision mouse system |
| CN102662498B (en) * | 2012-04-16 | 2015-09-30 | 中科华核电技术研究院有限公司 | A kind of wireless control method of projection demonstration and system |
| CN103268171A (en) * | 2013-05-06 | 2013-08-28 | 苏州三星电子电脑有限公司 | Projection light-controlled demonstration system and method for controlling same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2602547Y (en) * | 2003-03-07 | 2004-02-04 | 深圳市和而泰电子科技有限公司 | Computer-singlechip electrical level converting circuit |
| CN1534544A (en) * | 2003-04-01 | 2004-10-06 | 中国科学院电子学研究所 | Large screen non contact type control mode |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2602547Y (en) * | 2003-03-07 | 2004-02-04 | 深圳市和而泰电子科技有限公司 | Computer-singlechip electrical level converting circuit |
| CN1534544A (en) * | 2003-04-01 | 2004-10-06 | 中国科学院电子学研究所 | Large screen non contact type control mode |
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