CN2876890Y - Wireless microwave multimedia numerically controlled screen and transmitter thereof - Google Patents
Wireless microwave multimedia numerically controlled screen and transmitter thereof Download PDFInfo
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- CN2876890Y CN2876890Y CN 200520130929 CN200520130929U CN2876890Y CN 2876890 Y CN2876890 Y CN 2876890Y CN 200520130929 CN200520130929 CN 200520130929 CN 200520130929 U CN200520130929 U CN 200520130929U CN 2876890 Y CN2876890 Y CN 2876890Y
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Abstract
The utility model provides a wireless microwave multimedia numerically controlled screen and transmitter thereof, which comprises a computer, and a liquid crystal projector, a wireless microwave multimedia numerically controlled screen and a wireless microwave communication receiving circuit all connected with the computer; wherein, the computer is connected with the liquid crystal projector through a VGA cable; inside the wireless microwave multimedia numerically controlled screen is provided with a microwave signal detection device and a microwave signal detection microprocessing control circuit; the wireless microwave communication receiving circuit is connected with the computer through a standard USB cable, and, after demodulating received wireless microwave communication signal, converts the demodulated signal into USB communication protocol data transmitted at high speed into the computer. The utility model has the following benefits: being made into a big-size numerically controlled screen; uneasy to be cut open with high wear resistance; direct click operation by finger or pen on the numerically controlled screen replacing control of computer through mouse and keyboard; touch of the screen with a finger or a pen for information retrieval and data analysis; simpler, clearer and more shortcut than keyboard input and more friendly than other media.
Description
Technical field
The utility model relates to wireless microwave type multimedia teaching facility, particularly be multimedia numerically-controlled screen of wireless microwave and transmitting device thereof.
Background technology
Along with the widespread use of computing machine in every field, computer-aided instruction (CAI) obtains fast development, and application of multimedia technology is proposed higher requirement.Usually we mostly are by mouse and keyboard to the operation of computing machine.Export with display then.At teaching field, the exchange of technology symposial, multiple occasion such as new product release conferences mostly adopts computing machine to connect projector and amplifies demonstration, watches for many people.The image of Display projector is generally on special-purpose curtain, during explanation except the operation mouse, keyboard generally indicates with indication emphasis such as laser pens outward, but it can not replace mouse and keyboard that computing machine is operated, the user can not be by waiting projection image of clicking on the screen with finger, realization is operated the programmed control of computing machine or picture-text image etc., can not realize man-machine interaction, and this brings by many inconvenience to teaching.
Existing touch screen technology generally all is a pressure-sensitive writing pencil tablet, or is installed on the touch-screen on the display, is used for public information inquiry and programmed control etc.Be divided into following several by principle of work: resistive touch screen, sound surface-type touch-screen, infrared-type touch-screen, capacitive touch screen.But the touch-screen of said structure all in various degree have a following defective, as poor linearity; It is very big that size can not be done, and is difficult to satisfy the needs that projective large-screen shows; When temperature, humidity, when environment of electric field changes, can cause that all the drift of touch-screen causes inaccurate.Therefore people urgently wish a kind of user to occur as long as refer to bump screen lightly with finger etc. at teaching field, just can operate the program of computing machine or the picture-text image content of demonstration etc., and synchronously connect by projector and to project on this screen, thereby realize the numerical control screen of man-machine interaction.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, provide a kind of and computing machine between do not need line, adopt the microwave wireless data communication technology, be not subjected to weather and ambient temperature effect, be particularly suitable for multimedia numerically-controlled screen of wireless microwave and transmitting device thereof that large screen projection shows.
Solving the problems of the technologies described above the technical scheme that is adopted is: multimedia numerically-controlled screen of a kind of wireless microwave and transmitting device thereof, and the structure of multimedia numerically-controlled screen of described wireless microwave and transmitting device thereof comprises: the computing machine with WINDOWS operating system; Liquid crystal projection apparatus with described computing machine is connected comprises: the multimedia numerically-controlled screen of wireless microwave, wireless microwave communication receiving circuit; Wherein said computing machine connects liquid crystal projection apparatus with the VGA cable; Inner being equipped with of the multimedia numerically-controlled screen of described wireless microwave detected little control and treatment circuit with detecting the microwave signal pick-up unit and the microwave signal that send wireless microwave communication signal after the teaching personnel carry out digitized processing in the position of clicking on wireless many matchmakers of microwave numerical control screen with to the operation intention; Described wireless microwave communication receiving circuit connects computing machine with the standard USB cable, and changes into USB communications protocol data after receiving the demodulation of wireless microwave communication signal, imports in the computing machine at a high speed.
The beneficial effects of the utility model are: the utility model has solved the inherent defect of prior art, and it adopts microwave signal to detect and digital processing technology, can be made into very large-sized numerical control screen; Be not subjected to weather and ambient temperature effect; Be not afraid of dust, have high antifouling property; Be not afraid of shallow-layer and scratch, wearing quality is good; Can replace mouse and keyboard that computing machine is controlled directly with a finger or a clicking operation on the numerical control screen; The touch locator data is accurate; Be not subjected to the influence of intensity of illumination signal, be particularly suitable for the applications that large screen projection shows.After the picture-text image that projector shows computing machine during use projected above it, the user was as long as wait with finger and to refer to bump numerical control lightly and shield, and just can operate the program of computing machine or picture and text etc.Thereby make man-machine interaction more simple and direct, have characteristics such as man-machine interaction is good, easy to operate, quick, flexible, high input speed, in computer-aided instruction (CAI) operation interface, realized man-machine conversation.It adopts between microwave wireless data communication technology and the computing machine does not in addition need line, and installation and very easy to use has made things convenient for those to be ignorant of the user of computation especially.
Can utilize information such as Computer Processing sound, image, video, literal, chart, animation by the utility model, and between these information, set up certain logical relation, make it to become the integrated system that can alternatively carry out Information Access and output.It can integrated information publisher's wish and recipient to the demand of information and accept custom, information is collected, processes, is integrated and reversible is propagated.It combines with computer network and multimedia technology, and the user only touches screen with finger or style of writing, just can carry out information retrieval, data analysis; Simpler, directly perceived, quick than the keyboard input, have varied and colorful expressive ability, more any medium had more affinity than in the past.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the multimedia numerically-controlled screen cut-open view of wireless microwave;
Fig. 3 is a W-W cut-open view among Fig. 2;
Fig. 4 is the connection layout of the little control and treatment circuit B of Microwave Measurement signal;
Module circuit diagram is received/sent out to Fig. 5 microwave circuit;
Fig. 6 is the connection layout of wireless microwave communication receiving circuit C.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail:
Fig. 1 is the utility model structural representation.As shown in Figure 1, the utility model provides multimedia numerically-controlled screen of a kind of wireless microwave and transmitting device thereof, and the structure of multimedia numerically-controlled screen of described wireless microwave and transmitting device thereof comprises: the computing machine P with WINDOWS operating system; The liquid crystal projection apparatus T that is connected with described computing machine; The multimedia numerically-controlled screen of wireless microwave A; Wireless microwave communication receiving circuit C.
Described computing machine P connects liquid crystal projection apparatus T with VGA cable L; The multimedia numerically-controlled screen of described wireless microwave A is equipped with inside and detects little control and treatment circuit B with detecting the microwave signal pick-up unit and the microwave signal that send wireless microwave communication signal F after the teaching personnel carry out digitized processing in the position of clicking on wireless many matchmakers of microwave numerical control screen with to the operation intention; Described wireless microwave communication receiving circuit C connects computing machine P with standard USB cable U, and changes into USB communications protocol data after receiving wireless microwave communication signal F demodulation, imports among the computing machine P at a high speed.
Fig. 2 is the multimedia numerically-controlled screen cut-open view of wireless microwave; Fig. 3 is a W-W cut-open view among Fig. 2.Shown in Fig. 2,3, described microwave signal pick-up unit comprises: have the aluminum metal composite plate 5 of setting thickness; On aluminum metal composite plate 5, fix four the high-frequency circuit board 14 that is formed microstrip circuit by just profound waveform copper film line 8 is housed respectively, wherein on the relative high-frequency circuit board 14 in two positions horizontal polarization microwave emitting antenna 1 and horizontal polarization microwave antenna 2 are housed respectively, on the relative high-frequency circuit board 14 in other two positions position opposing vertical polarization microwave emitting antenna 3 and vertical polarization microwave antenna 4 are housed respectively; In the zone that above-mentioned four high-frequency circuit board 14 inboards surround, be provided with the dielectric layer 10 of Transmission Microwave; At high-frequency circuit board 14 with above the dielectric layer 10, be coated with polypropylene film 7 and conductive layer 9 from outside to inside successively; Detect the microwave that little control and treatment circuit B is connected with supporting microwave signal and receive/send out 4 antennal interface X-nP of the Wiring port 12 of antenna; X-nR; Y-nP; Y-nR connects horizontal polarization microwave emitting antenna 1, horizontal polarization microwave antenna 2, vertical polarization microwave emitting antenna 3, vertical polarization microwave antenna 4 respectively; Conductive reflective connection terminal Vn on the microwave field polarizing voltage Wiring port 13 and sheet metal connection terminal Vm are connected on aluminum metal composite plate 5 and the conductive layer 9.
Described dielectric layer 10 be with titania powder with make into the colloid filling material after silica gel mixes.
Described conductive layer 9 is silver ink conductive layers of inferior light polypropylene film internal layer sprayed coating.
Described polypropylene film 7 is the press polish polypropylene films that stick on the teaching screen surfaces, plays projection screen in the time of above projector is incident upon the image image.
At the multimedia numerically-controlled screen of wireless microwave A fixedly escutcheon 11 of metal is housed all around.
Fig. 4 is the little control and treatment circuit figure of Microwave Measurement signal.As shown in Figure 4, the little control and treatment circuit B of Microwave Measurement signal comprises: the chip microprocessor IC2 of AT89S51 model and connected following circuit: the microwave electric field polarizing voltage commutation circuit chip IC 3 of MAX4619E model; The microwave circuit of horizontal received signal is received/is sent out microwave circuit that module I C4, level transmit and receives/send out the microwave circuit of module I C5, vertical received signal and receive/send out the microwave circuit of module I C6, Vertical Launch signal and receive/send out the microwave circuit of module I C7, data transmission signal and receive/send out module I C8, frequency reference source circuit B-8, reset circuit B-9, electric source filter circuit B-10; The Wiring port 12 of antenna is received/sent out to microwave; Microwave field polarizing voltage Wiring port 13.Wherein:
Receive on the power vd D+ after pin 3,12,16 parallel connections of the microwave electric field polarizing voltage switching electrical chip IC3 of described MAX4619E model, receive power supply GND ground after its pin 5,13,8 parallel connections, its pin 9,11 connects chip microprocessor IC2 pin 14,15 respectively;
The microwave circuit receipts of described horizontal received signal/send out pin 23 (PWR_UP), 1 (CE) of module I C4,5 (CS) connect 7,8,10 pin of chip microprocessor IC2 respectively, and the controlled microwave circuit is received/is sent out a module I C4 and is operated in accepting state; Its pin 4 (DOUT2), 3 (CLK2), 2 (DR2) connect chip microprocessor IC2 pin 11,12,13 respectively, read the horizontal data signal of reception.Antennal interface X-nR on the Wiring port 12 connects horizontal polarization microwave antenna 2.VDD+ and GND be connected microwave circuit respectively and receive/send out VDD+ and the GND interface of module I C4, and be that module I C4 power pins is received/sent out to microwave circuit.
Pin 23 (PWR_UP), 1 (CE), 5 (CS) of the microwave circuit receipts/module I C5 that described/level transmits connect the pin 1,2,3 of chip microprocessor IC2 respectively, and the controlled microwave circuit is received/sent out a module I C5 and is operated in emission state; Its pin 8 (DATA), 7 (CLK1), 6 (DR1) connect the pin 4,5,6 of chip microprocessor IC2 respectively, send the horizontal data signal of microwave.Antennal interface X-nP on the Wiring port 12 connects horizontal polarization microwave emitting antenna 1.VDD+ and GND be connected microwave circuit respectively and receive/send out VDD+ and the GND interface of module I C5, and be the power pins of this module.
Pin 23 (PWR_UP), 1 (CE), 5 (CS) of a microwave circuit receipts/module I C6 of described vertical received signal connect the pin 36,37,38 of chip microprocessor IC2 respectively, and the controlled microwave circuit is received/sent out a module I C6 and is operated in accepting state; Its pin 4 (DOUT2), 3 (CLK2), 2 (DR2) connect the pin 39,28,27 of chip microprocessor IC2 respectively, read the vertical data signal of reception.Antennal interface Y-nR on the Wiring port 12 connects vertical polarization microwave antenna 4.VDD+ and GND be connected microwave circuit respectively and receive/send out the VDD+ and the GND interface of module, and be this modular power source pin.
Pin 23 (PWR_UP), 1 (CE), 5 (CS) of a microwave circuit receipts/module I C7 of described Vertical Launch signal connect the pin 16,17,32 of chip microprocessor IC2 respectively, and the controlled microwave circuit is received/sent out a module and is operated in emission state; Its pin 8 (DATA), 7 (CLK1), 6 (DR1) connect the pin 33,34,35 of chip microprocessor IC2 respectively, send the vertical data signal of microwave.Antennal interface Y-nP on the Wiring port 12 connects vertical polarization microwave emitting antenna 3.VDD+ and GND be connected microwave circuit respectively and receive/send out the VDD+ and the GND interface of module, and be the power pins of module.
Pin 23 (PWR_UP), 1 (CE), 5 (CS) of a microwave circuit receipts/module I C8 of described data transmission signal connect the pin 21,22,23 of chip microprocessor IC2 respectively, and the controlled microwave circuit is received/sent out a module and is operated in emission state; Its pin 8 (DATA), 7 (CLK1), 6 (DR1) connect the pin 24,25,26 of chip microprocessor IC2 respectively, send the data-signal that Microwave Measurement arrives.
NRF-I/O is the microwave antenna W-FR1 interface of a microwave circuit receipts/module I C8 of data transmission signal among the little control and treatment circuit B of Microwave Measurement signal, and wherein W-FR1 is the whiplike lead of regular length;
VDD+ and GND be connected microwave circuit respectively and receive/send out VDD+ and the GND interface of module I C8, and be the power pins of module.
Frequency reference source circuit B-8 comprises: the pin 18 of receiving chip microprocessor IC2 after crystal oscillator XT2 oscillator signal input end and the series connection of capacitor C 14 1 ends again, be connected to 19 pin of chip microprocessor IC2 after the end series connection of its oscillator signal output drive end and capacitor C 15, another termination power supply negative terminal mouth GND ground of capacitor C 14, C15.
The reset circuit B-9 of chip microprocessor IC2: the pin 9 of order sheet microprocessor IC2 again behind the end resistance in series R3 of capacitor C 13, the other end of resistance R 3 connects power-port GN D ground, and the other end of capacitor C 13 meets power vd D+ after linking the pin 31 (EA/VPP) of chip microprocessor IC2 again.
Electric source filter circuit B-10: an end connects the positive supply VDD+ pin 40 of chip microprocessor IC2 after capacitor C 11, the C12 parallel connection, and its other end is linked to the power-port pin 20GND ground of chip microprocessor IC2.
The pin 30,29 of chip microprocessor IC2 need not connect.
Antennal interface X-nR, X-nP, Y-nR, Y-nP on the Wiring port 12 of a microwave receipts/antenna connects microwave circuit respectively and receives/send out module I C4, IC5, IC6, IC7.
Conductive reflective connection terminal Vn on the microwave field polarizing voltage Wiring port 13 is connected the pin 4,14 that the microwave electric field polarizing voltage is switched electrical chip IC3 respectively with sheet metal connection terminal Vm.
Module circuit diagram is received/sent out to Fig. 5 microwave circuit.As shown in Figure 5, be to have the same circuits structure, the structural drawing of following circuit.That is, the microwave circuit of horizontal received signal is received/is sent out microwave circuit that module I C4, level transmit and receives/send out the microwave circuit of module I C5, vertical received signal and receive/send out the microwave circuit of module I C6, Vertical Launch signal and receive/send out the microwave circuit of module I C7, data transmission signal and receive/send out module I C8.The structure of foregoing circuit comprises: one chip IC 1 and connected following circuit are received/sent out to microwave: electric source filter circuit B-1, inner phaselocked loop are followed the tracks of decoupling circuit B-5, the oscillator signal frequency reference source circuit B-6 of oscillator circuit B-2, the harmonic shock type B-3 of rejector circuit in parallel, series connection harmonic shock type trap circuit B-4, microwave transmitter interior power supply circuit, wherein:
The pin 1,5,23 that one chip IC 1 was received/sent out to microwave claims port CE, CS, PWR_UP again, its pin 10,16,18,22,20 backs in parallel connect power-port GND ground, its pin 24,21,17 backs in parallel connect power positive end mouth VDD+, its pin 7,8,6 claims microwave data transmit port CLK1, DATA, DR1 again, its pin 3,4,2 claims microwave data receiving port CLK2 again, DOUT2, DR2.
Electric source filter circuit B-1 is: the supply pin 24,21,17 that is parallel to chip IC 1 after the end of capacitor C 6, C5 connects; Be connected to power-port GND ground behind the pin 10,16,18,22,20 of its an other end microwave receipts in parallel/one chip IC 1.
Inner phaselocked loop is followed the tracks of oscillator circuit B-2: capacitor C 7 one ends connect microwave to be received/send out the pin 9 of one chip IC 1, and its other end is received power-port GND ground; Resistance R 2 one ends connect microwave to be received/send out the pin 19 of one chip IC 1, and its other end is received power-port GND ground.
The harmonic shock type B-3 of rejector circuit in parallel is: on capacitor C 9, the inductance L 2 back one termination capacitor C10 in parallel, the pin 15 of one chip IC 1 is received/sent out to its another termination microwave; Connect microwave again after another termination microwave of capacitor C 10 is received/send out on the antennal interface nRF I/O and receive/send out antennal interface 12.
Series connection harmonic shock type trap circuit B-4: an end series inductance L1 of capacitor C 8, its another termination capacitor C 10; The pin 14 of one chip IC 1 is received/sent out to inductance L 1 another termination microwave.
The decoupling circuit B-5 of microwave transmitter interior power supply circuit: one of capacitor C 3, C4 parallel connection terminates to the pin 13 of a microwave receipts/one chip IC 1, and its other end is received power-port GND ground.
Oscillator signal frequency reference source circuit B-6: connect the pin 11 of chip IC 1 behind the oscillator signal input end connection capacitor C 1 of crystal oscillator XT1, the end of resistance R 1 again, connect the pin 12 of chip IC 1 behind the other end of its oscillator signal output drive end connection capacitor C 2, resistance R 1 again; Another termination power supply negative terminal mouth GND ground of capacitor C 1, C2.
Fig. 6 is wireless microwave communication receiving circuit figure.As described in Figure 6, wireless microwave communication receiving circuit C comprises: the USB communication control circuit chip IC 10 of FT232BM model; The serial data memory chip IC 11 of AT9346 model; Oscillator signal frequency reference source circuit B-11; Decoupling circuit B-12; Filtering circuit B-13, B-14; Choke circuit B-15; A microwave wireless data receipts/modular circuit is IC9, wherein:
USB communication control circuit chip IC 10 is: meet power supply VCC after pin 3,26,13,4 parallel connections of described chip IC 10; Connect power supply GND ground after its pin 29,17,9,31 parallel connections; Its pin 8 connects resistance R 7 one ends, and resistance R 7 other ends connect the high signal stitch 2 of USB-B port bus; Its pin 7 connects resistance R 8 and resistance R 9 one ends, and the other end of resistance R 8 connects the low level signal stitch 3 of USB-B port bus; Its pin 5 connects the other end of resistance R 9.
Serial data memory chip IC 11 is: the pin 2,1 of described chip IC 11 connects the pin 1,32 of USB communication control circuit chip IC 10 respectively, its pin 6,8 connects power supply VCC and resistance R 10 1 ends, resistance R 10 other ends connect chip IC 11 pin 3, connect resistance R 11 1 ends simultaneously, resistance R 11 another pin connect the serial data signal line of chip IC 11 pin 4.
A microwave circuit receipts/module I C9 is: described module I C9 pin 6 is data DR1 look-at-me lines; Its pin 7 is serial data CLK1 clock cables; Its pin 8 is data DATA signal wires; Its pin 2 is data DR2 look-at-me lines; Its pin 3 is serial data CLK2 clock cables; Its pin 4 is data DOUT2 signal wires; Its pin 5 is CS chip selection signal lines; Its pin 1 is a CE transceiver mode signal wire; Its pin 23 is PWEN work/standby mode signal wires; Above-mentioned each pin connects the pin 22,25,24,19,20,18,23,21,15 of USB communication control circuit chip IC 10 successively respectively; [VDD+ of C9 is connected power supply VCC and GND interface respectively with GND to described module, is power pins.
RF-DAT is the microwave antenna W-FR2 interface of a microwave circuit receipts/module I C9 of data reception signal among the wireless microwave communication receiving circuit C, and wherein W-FR2 is the whiplike lead of regular length.
Oscillator signal frequency reference source circuit B-11: the oscillator signal input end of crystal oscillator XT3, oscillator signal output drive end connects the pin 27,28 that connects USB communication control circuit chip IC 10 behind the end of capacitor C 19, C20 more respectively respectively; The other end of capacitor C 19, C20 is received power-port GND ground.
Decoupling circuit B-12 is: an end of capacitor C 23 connects the pin 30 that connects chip IC 10 after the resistance R 6 again; Another end of resistance R 6 connects power supply VCC; The other end of capacitor C 23 connects power supply GND ground.
Electric source filter circuit B-13 is: an end of capacitor C 25 connects power supply VCC, its another termination power ground GND.
Filtering circuit B-14 is: an end of capacitor C 24 connects the pin 6 of USB communication control circuit chip IC 10, and its other end connects power-port GND ground.
Choke circuit B-15 is: the termination power VCC of high-frequency inductor FBD, its other end connect on the USB-B type socket pin 1 of USB cable U; The pin of while shunt capacitance C26, capacitor C 26 1 ends connect power-port GND ground.
Below in conjunction with accompanying drawing to course of work detailed description of the present utility model:
1. to numerical control screen Microwave Measurement circuit B, computing machine C, projector T energized.Standard computer C starts the graph text information that will show behind the WINDOWS, by connecting VGA cable L, delivers among the liquid crystal projection apparatus T.
Among the projector T with image projection on the multimedia numerically-controlled screen device A of microwave type.
3. the other teaching personnel of screen explain emphasis with the image on the clicking operation screens such as finger or pen, directly draw, and write or the control program operation.
4. the chip microprocessor IC2 of numerical control screen A in supporting microwave circuit B starts working, and chip microprocessor IC2 elder generation controlled microwave electric field polarization voltage switches the Vn of electrical chip IC3 by microwave field polarizing voltage Wiring port 13 and Vm terminal to be given and add positive voltage (+5V) formation horizontal polarization electric field between silver ink conductive layer 9 and the sheet metal 5; Controlling level microwave radiating circuit IC5 receives/sends out the X-nP terminal of antenna connection port 12 by microwave then, and feedwater mean pole microwave emitting antenna 1 sends microwave signal; Propagate and produce the standing wave concussion in the titania dielectric layer 10 of microwave between sheet metal 5 and conductive reflective 9.After receiving signal, horizontal microwave polarization receiving antenna 2 passes to horizontal microwave receiving IC circuit 4 by the X-nR terminal; When finger or hard-tipped pen touch outer membrane, be out of shape in touch location generation slight depression, the phase place and the standing-wave ratio (SWR) of the microwave signal that receives at horizontal microwave polarization receiving antenna 2 change, after horizontal microwave receiving IC circuit 4 detects, data are delivered among the chip microprocessor IC2, by calculating the position data of touch point horizontal coordinate X.Equally, chip microprocessor IC2 controlled microwave electric field polarization voltage switching electrical chip IC3 (5V) forms the vertical polarization electric field to adding negative voltage between silver ink conductive layer 9 and the sheet metal 5 again by the Vn and the Vm terminal of microwave field polarizing voltage Wiring port 13, control vertical microwave radiating circuit IC7 then and receive/send out the Y-nP terminal of antenna connection port 12 by microwave, send microwave signal for vertical polarization microwave emitting antenna 3, after receiving microwave signal, vertical microwave polarization receiving antenna 4 delivers in the microwave receiving IC circuit 6 by the Y-nR terminal, data are delivered among the chip microprocessor IC2, by position data and the storage that calculates touch point vertical coordinate Y.
5. chip microprocessor IC2 is after collecting complete data, earlier by encrypting packing after the verification of international CRC standard, the wireless microwave receipts/Power Generation Road of control data module I C8 sends wireless microwave communication signal F by the antenna W-FR1 that the nRF-I/O terminal connects then with the horizontal and vertical position coordinate data.
6. wireless microwave data communication signal F is received by the receiving antenna W-FR2 among the wireless data receiving circuit C, passing to a microwave wireless data receipts/modular circuit IC9 by the RF-DAT terminal delivers in the USB chip IC 10 again, in IC10 inside data are carried out verification and deciphering by international CRC standard, convert USB2.0 standard agreement data to after correct, pass to computing machine P at a high speed by cable U.
7. in computing machine P, data are done digitized processing by detected click location and operation intention, finish the programmed control of computing machine P.
8. computing machine P is connected to projector T with crossing L, and it will operate information such as postrun picture and text and be incident upon this numerical control and shield on the A.Operating personnel's click location and display graphics can be corresponding mutually like this, thereby realized the man-machine interactive operation.
Claims (6)
1. multimedia numerically-controlled screen of wireless microwave and transmitting device thereof, the structure of multimedia numerically-controlled screen of described wireless microwave and transmitting device thereof comprises: the computing machine (P) with WINDOWS operating system; The liquid crystal projection apparatus (T) that is connected with described computing machine is characterized in that, also comprises: the multimedia numerically-controlled screen of wireless microwave (A), wireless microwave communication receiving circuit (C); Wherein said computing machine (P) connects liquid crystal projection apparatus (T) with VGA cable (L); The multimedia numerically-controlled screen of described wireless microwave (A) inside is equipped with and is detected little control and treatment circuit (B) with detecting the microwave signal pick-up unit and the microwave signal that send wireless microwave communication signal (F) after the teaching personnel carry out digitized processing in the position of clicking on wireless many matchmakers of microwave numerical control screen with to the operation intention; Described wireless microwave communication receiving circuit (C) connects computing machine (P) with standard USB cable (U), and changes into USB communications protocol data after receiving wireless microwave communication signal (F) demodulation, imports in the computing machine (P) at a high speed.
2. multimedia numerically-controlled screen of wireless microwave according to claim 1 and transmitting device thereof is characterized in that, described microwave signal pick-up unit comprises: have the aluminum metal composite plate (5) of setting thickness; On aluminum metal composite plate (5), fix four the high-frequency circuit board (14) that is formed microstrip circuit by just profound waveform copper film line (8) is housed respectively, wherein on the relative high-frequency circuit board (14) in two positions horizontal polarization microwave emitting antenna (1) and horizontal polarization microwave antenna (2) are housed respectively, position opposing vertical polarization microwave emitting antenna (3) and vertical polarization microwave antenna (4) are housed respectively on the relative high-frequency circuit board (14) in other two positions; In the zone that above-mentioned four high-frequency circuit boards (14) inboard surrounds, be provided with the dielectric layer (10) of Transmission Microwave; At high-frequency circuit board (14) with above the dielectric layer (10), be coated with polypropylene film (7) and conductive layer (9) from outside to inside successively; Detect the microwave that little control and treatment circuit (B) is connected with microwave signal and receive/send out 4 antennal interface X-nP of the Wiring port (12) of antenna; X-nR; Y-nP; Y-nR connects horizontal polarization microwave emitting antenna (1), horizontal polarization microwave antenna (2), vertical polarization microwave emitting antenna (3), vertical polarization microwave antenna (4) respectively; Conductive reflective connection terminal Vn on the microwave field polarizing voltage Wiring port (13) and sheet metal connection terminal Vm are connected on aluminum metal composite plate (5) and the conductive layer (9).
3. multimedia numerically-controlled screen of wireless microwave according to claim 2 and transmitting device thereof is characterized in that, described dielectric layer (10) is to mix with titania powder and silica gel to make; Described conductive layer (9) is the silver ink conductive layer of inferior light polypropylene film internal layer sprayed coating; Described polypropylene film (7) is the press polish polypropylene film that sticks on the teaching screen surfaces; Described high-frequency circuit board (14) is to receive/send out the plate base of high-frequency circuit board on the antenna with the microwave that the polytetrafluoroethylene material is made.
4. multimedia numerically-controlled screen of wireless microwave according to claim 1 and transmitting device thereof, it is characterized in that the little control and treatment circuit of described Microwave Measurement signal (B) comprising: the chip microprocessor IC2 of AT89S51 model and connected following circuit: the microwave electric field polarizing voltage commutation circuit chip IC 3 of MAX4619E model; The microwave circuit of horizontal received signal is received/is sent out microwave circuit that module I C4, level transmit and receives/send out the microwave circuit of module I C5, vertical received signal and receive/send out the microwave circuit of module I C6, Vertical Launch signal and receive/send out the microwave circuit of module I C7, data transmission signal and receive/send out module I C8, frequency reference source circuit (B-8), reset circuit (B-9), electric source filter circuit (B-10); The Wiring port (12) of antenna is received/sent out to microwave; Microwave field polarizing voltage Wiring port (13); Wherein:
Receive on the power vd D+ after pin 3,12,16 parallel connections of the microwave electric field polarizing voltage switching electrical chip IC3 of MAX4619E model, receive power supply GND ground after its pin 5,13,8 parallel connections, its pin 9,11 connects the pin 14,15 of chip microprocessor IC2 respectively;
The pin 23,1 of module I C4 is received/sent out to the microwave circuit of horizontal received signal, 5 connect 7,8,10 pin of chip microprocessor IC2 respectively, its pin 4,3,2 connects chip microprocessor IC2 pin 11,12,13 respectively, and the antennal interface X-nR on the Wiring port (12) connects horizontal polarization microwave antenna (2);
The pin 23,1,5 of the microwave circuit receipts/module I C5 that level transmits connects the pin 1,2,3 of chip microprocessor IC2 respectively, its pin 8,7,6 connects the pin 4,5,6 of chip microprocessor IC2 respectively, and the antennal interface X-nP on the Wiring port (12) connects horizontal polarization microwave emitting antenna (1);
The pin 23,1,5 of a microwave circuit receipts/module I C6 of vertical received signal connects the pin 36,37,38 of chip microprocessor IC2 respectively, its pin 4,3,2 connects the pin 39,28,27 of chip microprocessor IC2 respectively, and the antennal interface Y-nR on the Wiring port (12) connects vertical polarization microwave antenna (4);
The pin 23,1,5 of a microwave circuit receipts/module I C7 of Vertical Launch signal connects the pin 16,17,32 of chip microprocessor IC2 respectively, its pin 8,7,6 connects the pin 33,34,35 of chip microprocessor IC2 respectively, and the antennal interface Y-nP on the Wiring port (12) connects vertical polarization microwave emitting antenna (3);
The pin 23,1,5 of a microwave circuit receipts/module I C8 of data transmission signal connects 21,22,23 pin of chip microprocessor IC2 respectively, and its pin 8,7,6 connects the pin 24,25,26 of chip microprocessor IC2 respectively;
NRF-I/O is the microwave antenna W-FR1 interface of a microwave circuit receipts/module I C8 of data transmission signal in the little control and treatment circuit of Microwave Measurement signal (B), and wherein W-FR1 is the whiplike lead of regular length;
Frequency reference source circuit (B-8) comprising: the pin 18 of receiving chip microprocessor IC2 after crystal oscillator XT2 oscillator signal input end and the series connection of capacitor C 14 1 ends again, be connected to the pin 19 of chip microprocessor IC2 after the end series connection of its oscillator signal output drive end and capacitor C 15, another termination power supply negative terminal mouth GND ground of capacitor C 14, C15;
The reset circuit of chip microprocessor IC2 (B-9): the pin 9 of order sheet microprocessor IC2 again behind the end resistance in series R3 of capacitor C 13, the other end of resistance R 3 connects power-port GND ground, and the other end of capacitor C 13 meets power vd D+ after linking the pin 31 of chip microprocessor IC2 again;
Electric source filter circuit (B-10): an end connects the positive supply VDD+ pin 40 of chip microprocessor IC2 after capacitor C 11, the C12 parallel connection, and its other end is linked to the power-port pin 20 of chip microprocessor IC2
GND ground;
Antennal interface X-nR, X-nP, Y-nR, Y-nP on the Wiring port (12) of a microwave receipts/antenna connects microwave circuit respectively and receives/send out module I C4, IC5, IC6, IC7;
Conductive reflective connection terminal Vn on the microwave field polarizing voltage Wiring port (13) is connected the pin 4,14 that the microwave electric field polarizing voltage is switched electrical chip IC3 respectively with sheet metal connection terminal Vm.
5. multimedia numerically-controlled screen of wireless microwave according to claim 4 and transmitting device thereof, it is characterized in that: module I C4 is received/sent out to the microwave circuit of described horizontal received signal, module I C5 is received/sent out to the microwave circuit that level transmits, module I C6 is received/sent out to the microwave circuit of vertical received signal, module I C7 is received/sent out to the microwave circuit of Vertical Launch signal, the microwave circuit of data transmission signal is received/is sent out module I C8 and has the same circuits structure, its circuit structure comprises: one chip IC 1 and connected following circuit are received/sent out to the microwave of nRF2401A model: electric source filter circuit (B-1), inner phaselocked loop is followed the tracks of oscillator circuit (B-2), harmonic shock type rejector circuit (B-3) in parallel, series connection harmonic shock type trap circuit (B-4), the decoupling circuit of microwave transmitter interior power supply circuit (B-5), oscillator signal frequency reference source circuit (B-6), wherein:
Its pin 10,16,18,22,20 backs in parallel that one chip IC 1 was received/sent out to microwave connect power-port GND ground, and its pin 24,21,17 backs in parallel connect power positive end mouth VDD+;
Electric source filter circuit (B-1) is: the supply pin 24,21,17 that is parallel to chip IC 1 after the end of capacitor C 6, C5 connects; Be connected to power-port GND ground behind the pin 10,16,18,22,20 of its an other end microwave receipts in parallel/one chip IC 1;
Inner phaselocked loop is followed the tracks of oscillator circuit (B-2): capacitor C 7 one ends connect microwave to be received/send out the pin 9 of one chip IC 1, and its other end is received power-port GND ground; Resistance R 2 one ends connect microwave to be received/send out the pin 19 of one chip IC 1, and its other end is received power-port GND ground;
Harmonic shock type rejector circuit in parallel (B-3) is: on capacitor C 9, the inductance L 2 back one termination capacitor C10 in parallel, the pin 15 of one chip IC 1 is received/sent out to its another termination microwave; Connect microwave again after another termination microwave of capacitor C 10 is received/send out on the antennal interface nRF I/O and receive/send out the antennal interface of antennal interface (12);
Series connection harmonic shock type trap circuit (B-4): an end series inductance L1 of capacitor C 8, its another termination capacitor C 10; The pin 14 of one chip IC 1 is received/sent out to inductance L 1 another termination microwave;
The decoupling circuit of microwave transmitter interior power supply circuit (B-5): one of capacitor C 3, C4 parallel connection terminates to the pin 13 of a microwave receipts/one chip IC 1, and its other end is received power-port GND ground;
Oscillator signal frequency reference source circuit (B-6): connect the pin 11 of chip IC 1 behind the oscillator signal input end connection capacitor C 1 of crystal oscillator XT1, the end of resistance R 1 again, connect the pin 12 of chip IC 1 behind the other end of its oscillator signal output drive end connection capacitor C 2, resistance R 1 again; Another termination power supply negative terminal mouth GND ground of capacitor C 1, C2.
6. multimedia numerically-controlled screen of wireless microwave according to claim 1 and transmitting device thereof is characterized in that: wireless microwave communication receiving circuit (C) comprising: the USB communication control circuit chip IC 10 of FT232BM model; The serial data memory chip IC 11 of AT9346 model; Oscillator signal frequency reference source circuit (B-11); Decoupling circuit (B-12); Filtering circuit (B-13), (B-14); Choke circuit (B-15); A microwave wireless data receipts/modular circuit is IC9, wherein:
USB communication control circuit chip IC 10 is: meet power supply VCC after pin 3,26,13,4 parallel connections of described chip IC 10; Connect power supply GND ground after its pin 29,17,9,31 parallel connections; Its pin 8 connects resistance R 7 one ends, and resistance R 7 other ends connect the high signal stitch 2 of USB-B port bus; Its pin 7 connects resistance R 8 and resistance R 9 one ends, and the other end of resistance R 8 connects the low level signal stitch 3 of USB-B port bus; Its pin 5 connects the other end of resistance R 9;
Serial data memory chip IC 11 is: the pin 2,1 of described chip IC 11 connects the pin 1,32 of USB communication control circuit chip IC 10 respectively, its pin 6,8 connects power supply VCC and resistance R 10 1 ends, resistance R 10 other ends connect chip IC 11 pin 3, connect resistance R 11 1 ends simultaneously, resistance R 11 another pin connect the serial data signal line of chip IC 11 pin 4;
A microwave circuit receipts/module I C9 is: described module I C9 pin 6 is data DR1 look-at-me lines; Its pin 7 is serial data CLK1 clock cables; Its pin 8 is data DATA signal wires; Its pin 2 is data DR2 look-at-me lines; Its pin 3 is serial data CLK2 clock cables; Its pin 4 is data DOUT2 signal wires; Its pin 5 is CS chip selection signal lines; Its pin 1 is a CE transceiver mode signal wire; Its pin 23 is PWEN work/standby mode signal wires; Above-mentioned each pin connects the pin 22,25,24,19,20,18,23,21,15 of USB communication control circuit chip IC 10 successively respectively; The VDD+ of described module I C9 is connected power supply VCC and GND interface respectively with GND, is power pins;
RF-DAT is the microwave antenna W-FR2 interface of a microwave circuit receipts/module I C9 of data reception signal in the wireless microwave communication receiving circuit (C), and wherein W-FR2 is the whiplike lead of regular length;
Oscillator signal frequency reference source circuit (B-11): the oscillator signal input end of crystal oscillator XT3, oscillator signal output drive end connects the pin 27,28 that connects USB communication control circuit chip IC 10 behind the end of capacitor C 19, C20 more respectively respectively; The other end of capacitor C 19, C20 is received power-port GND ground;
Decoupling circuit (B-12) is: an end of capacitor C 23 connects the pin 30 that connects chip IC 10 after the resistance R 6 again; Another end of resistance R 6 connects power supply VCC; The other end of capacitor C 23 connects power supply GND ground;
Electric source filter circuit (B-13) is: an end of capacitor C 25 connects power supply VCC, its another termination power ground GND;
Filtering circuit (B-14) is: an end of capacitor C 24 connects the pin 6 of USB communication control circuit chip IC 10, and its other end connects power-port GND ground;
Choke circuit (B-15) is: the termination power VCC of high-frequency inductor FBD, its other end connect on the USB-B type socket pin 1 of USB cable U; The pin of while shunt capacitance C26, capacitor C 26 1 ends connect power-port GND ground.
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|---|---|---|---|
| CN 200520130929 CN2876890Y (en) | 2005-12-28 | 2005-12-28 | Wireless microwave multimedia numerically controlled screen and transmitter thereof |
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| CN 200520130929 CN2876890Y (en) | 2005-12-28 | 2005-12-28 | Wireless microwave multimedia numerically controlled screen and transmitter thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968726A (en) * | 2010-09-03 | 2011-02-09 | 云南师范大学 | Monitor-to-projector color reproduction device and realizing method |
| CN104133565A (en) * | 2014-07-24 | 2014-11-05 | 四川大学 | Real-time laser point tracking man-machine interaction system realized by utilizing structured light technology |
| CN104484061A (en) * | 2014-11-25 | 2015-04-01 | 东莞恒涌电子制品有限公司 | Smart pen control and usage method |
-
2005
- 2005-12-28 CN CN 200520130929 patent/CN2876890Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101968726A (en) * | 2010-09-03 | 2011-02-09 | 云南师范大学 | Monitor-to-projector color reproduction device and realizing method |
| CN104133565A (en) * | 2014-07-24 | 2014-11-05 | 四川大学 | Real-time laser point tracking man-machine interaction system realized by utilizing structured light technology |
| CN104133565B (en) * | 2014-07-24 | 2017-05-24 | 四川大学 | Real-time laser point tracking man-machine interaction system realized by utilizing structured light technology |
| CN104484061A (en) * | 2014-11-25 | 2015-04-01 | 东莞恒涌电子制品有限公司 | Smart pen control and usage method |
| CN104484061B (en) * | 2014-11-25 | 2017-07-14 | 东莞恒涌电子制品有限公司 | A kind of smart pen manipulation and application method |
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Effective date of registration: 20070810 Address after: 300161 Hedong District of Tianjin City Road yearning scenery Chenyang area B District 2-1-101 Patentee after: Zhang Yu Address before: 300110 Tianjin city Nankai District Weishui road Pingli Road No. 4 Patentee before: Tianjin Haidong Sci. & Tech. Dev. Co., Ltd. |
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