Multi-functional multimedia remote controller
Technical field
The utility model belongs to the telepilot technical field, relates to a kind of multi-functional multimedia remote controller.
Background technology
Along with the progress of science and technology, multimedia has become the focus of current teaching field.Multimedia teaching is a kind of modern teaching means, and it is to utilize multiple medium such as literal, material object, image, sound to transmit information to the student.Compare with common teaching, following advantage arranged:
One, picture and text acoustic image and luxuriant, the mood of multi-angle mobilizing students, emotion, notice and interest;
Two, directly perceived, can break through the restriction of vision, the object of observation with multi-angle, and can give prominence to main points, help the understanding of notion and the grasp of method;
Three, dynamic reflection notion and process can break through difficult point effectively;
Four, stronger interactivity, the student has more participation, and study more initiatively and by creating the environment of self-examination, helps the student and forms new cognitive structure;
Five, realized expansion by multimedia, and, cultivated student's exploration, creativity by reproduction and simulation to real situation to common experiment;
Six, the repeatability of teaching process helps breaking through difficult point and overcomes and forgets;
Seven, specific aim makes the teaching at the start-up of different levels become possibility;
Eight, large information capacity, high capacity have been saved room and time, have improved efficiency of teaching;
Nine, make some abstract notions hard to understand become concrete observable picture, figure, promptly change abstract for concrete.This multimedia teaching has the unexistent interest of Traditional teaching means, intuitive, can give full play to both sides' enthusiasm, initiative and creativeness, break through the heavy difficult point of teaching explanation, thereby can reach teaching purpose easilier, make the student at happiness, acquire knowledge in the environment easily.
But because technical reason, the teacher often needs to keep on the computer next door in utilizing the process of multimedia teaching at present, seeing monitor, and meanwhile operating computer, Yi Bian explain.And the student is seeing giant-screen on one side, by arrow screen on mark the explanation position of judging teacher on one side, listen teacher's explanation on one side.Teacher's image is not or not student's the visual field, the sight of Faculty and Students can not cross, teacher's body language can't be put to good use, the soul of Faculty and Students can't be linked up, the teacher has become " aside " of multimedia presentation picture, if attention of student one is not concentrated slightly, also might can not find the position of teacher's explanation.If standing in before the giant-screen by the lecturer only explained according to traditional teaching custom, though can address the above problem, but owing to need switch display frame every now and then, must go to the preceding operating computer of computing machine every now and then, original multimedia presentation for imparting knowledge to students and providing convenience but brings inconvenience to teaching.The electronic whiteboard demonstration equipment that grew up in recent years, though can address the above problem, the teacher again need not " hurry back and forth " between computer and giant-screen, just can finish computation with electronic pen on screen, has made things convenient for teaching.But because the present screen of electronic whiteboard is less, generally, can't satisfies teaching demand, and cost an arm and a leg, the plate face is had relatively high expectations, also can't solve the problem that shuts out the light with projector intense light irradiation eye than large space below 85 inches.
Popular electronic teacher pointer combines with multimedia and has improved the effect of multimedia teaching at present, as Chinese patent application publication number: CN1825262A (application number 200610042139.8), a kind of electronic teacher pointer, employing ultrasound wave and infrared emittance are disclosed, or optical induction device, or laser sensor, or solenoid is as the information induction emitter at electronic teacher pointer top, adopt USB line or blue-tooth device or be connected with multimedia host with the corresponding receiving trap of information induction emitter, be used with multimedia presentation equipment, both had a function of teacher's pointer, the function that also has computer mouse, can on giant-screen, directly finish computation, under the support of related software, also can have writing function, in display frame, punctuate, mark, explanation and writing on the blackboard.But this electronic teacher pointer scene bigger perform in a radio or TV programme the hall, because environment is noisy, give bad academic environment of people, the audience is easy to generate slack, and the simple sound by teacher can not be dealt with problems, in addition, if the lecturer extremely drops into the time forgotten when explanation, forgotten and still not prompting again of own relevant important meeting, business or the like, missed time and chance so easily, lost the chance of oneself.Therefore still may there be following defective in electronic teacher pointer multimedia teaching of the prior art:
1, has no idea to break away from the restriction of distance, if under the distance situation far away, the audience may can't hear speaker's sound.
If 2, the phenomenon can the frequency of occurrences between microphone and the stereo set during station, position improper in speech disturbed of speaker.
3, the voice recording function that does not have main points, emphasis part.
4, existing generally is to adopt powered battery, and cost is higher.
5, there are not automatic prompting, caution, emphasis identification function.
6, can not be in explanation divide in various degree sign to the content of being explained.
The utility model content
Technical problem to be solved in the utility model is an existing defective in the specific aim prior art, a kind of experience with students that multimedia teaching and teacher are enriched that can be real is provided, In-class language, the educational aid one multi-functional multimedia remote controller that life is combined closely, but integrated wireless remote control, microphone, recording, the electronic teacher pointer intelligent demonstration, automatically prompting caution, the arbitrary change of color, but trickle charge function, the user is freed before computer desk completely, can build one easily, convenient, solution space is said in active demonstration, allow speaker and audience combine by multimedia is strong, real realize " where walk; where say; where say, where point to ".
The technical scheme that solution the utility model technical matters is adopted is that this multi-functional multimedia remote controller comprises remote controller body, remote controller body comprises shell, guidance panel, button, electronic circuit board, power supply, remote-control transmitting module, at the remote controller body top electronic teacher pointer is arranged, electronic circuit board comprises microprocessor and peripheral function circuit thereof, microprocessor is connected with the function element circuit of electronic teacher pointer by the peripheral function circuit, and the peripheral function circuit also is connected with a voice device, remote-control transmitting module.Make the utility model not only have the function of electronic teacher pointer,, also have earphone function and sound-recording function.Corresponding with remote controller body, there is receiver of remote-control sytem at multimedia computer main frame place, receiver of remote-control sytem is connected with the multimedia computer main frame by message recipient such as USB or Bluetooth adapter, the multimedia computer main frame is handled the remote signal that receives, and host computer is connected with display device.
Preferably the remote-control transmitting module is the voice transmission device that comprises the wireless microphone circuit block.
The remote-control transmitting module also can be Bluetooth transmission module or wireless mouse, and the receiver of remote-control sytem at multimedia computer main frame place then can be the bluetooth receiver module.
Remote-controlled launcher also can comprise the radiating portion of the information induction device in the electronic teacher pointer, and the function element circuit of electronic teacher pointer is the circuit of the information induction device in the electronic teacher pointer.
Preferably microprocessor has Vib. by peripheral function circuit control linkage, can give the prompting of demonstrator's Timing vibration; The voice device that microprocessor connects is the storer A of control linkage, is used for storage and playback, microphone is arranged through recording device connected storage A, and microphone is connected with transmitter module simultaneously; Microprocessor is the control linkage voice prompting device also, and voice prompting device is connected with storer B, and microprocessor can be transported to transmitter module by voice prompting device with the language information of storer B storage.Storer A can be built-in audio decoder chip and pronounciation processing chip, can encode to voice, decoding, DSP handle the back voice and launched with wireless form by the remote-control transmitting module, receive the back by a multimedia message recipient voice are handled, realize earphone function; By the audio decoder chip and the pronounciation processing chip of remote controller body inside, can encode to voice, decoding, DSP handle voice are carried out intelligentized storage, finishes sound-recording function.Record the operation with earphone function of recording and microphone switching key is installed on the remote controller body panel.Storer B can be built-in speech chip, and the operation that shake bell key shakes the tinkle of bells and sound prompt function is installed on the remote controller body panel.
Preferably light emitting devices is arranged at the remote controller body top, and light emitting devices has the luminotron of light-emitting device, and light is launched after discoloration controller is light color shape reforming unit, produces the function of indication color-variable.
Further preferably light color shape reforming unit is light color and light alteration of form reforming unit, comprises color optical filtering whirligig, light alteration of form device, and light-emitting device, color optical filtering whirligig, light alteration of form device are arranged in order.Color optical filtering whirligig has rotatable optical filtering rotating disc, on the color optical filtering rotating disc versicolor optical filter is arranged, light alteration of form device has movably light alteration of form plate, the light that luminotron in the light transmission hole that different shape is arranged on the light alteration of form plate, light-emitting device sends obtains required light shape through light alteration of form device again after color optical filtering whirligig becomes needed color.
Preferably the charging inlet of pegging graft with charging module is arranged at the remote controller body bottom, and the base with charging circuit of charging module for being connected with external power can be the remote controller body power supply and be the charging of the rechargeable battery in the remote controller body.
The message recipient of remote-receiver can be a kind of Multi-functional Receiver with laser induced scanister, pronunciation receiver, ultrasonic probe, ultrasonic receiver, infrared receiving device.Receiver of remote-control sytem can be USB or Bluetooth adapter.
The utility model remote controller body profile is identical with common remote controller, and the electronic teacher pointer that can stretch is arranged at the top, its length and screen size and people and screen direct range adapt, the function that had both possessed normal remote control and electronic teacher pointer on the function, on giant-screen, can directly finish the operation of computer as mouse, and possess outside the function of writing and revising, cooperate with the computer multi-media demonstration equipment, also has microphone, recording, chargeable, prompting, warning, the indication color-variable, but functions such as trickle charge, the real realization remote control and the combination of indication, it frees the user before computer desk completely, can build one easily, convenient, solution space is said in active demonstration, allow speaker and audience combine by multimedia is strong, real realize " where walk; where say; where say, where point to ".
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 the utility model system block diagram
Fig. 2 is the circuit block diagram of remote controller body of the present utility model
The structural representation of Fig. 3 remote controller body
Fig. 4 is the upward view of Fig. 3
Fig. 5 is the vertical view of Fig. 3
Fig. 6 is the circuit block that distributes on the electronic circuit board 50
Fig. 7 remote controller body operation push-button panel synoptic diagram
Fig. 8 light color and light shape reforming unit perspective view
The circuit theory diagrams of Fig. 9 wireless microphone
Among the figure: 1-electronic teacher pointer information induction device 5-operation push-button panel 7-light color shape reforming unit 8-electronic teacher pointer and antenna 11-infrared emittance circuit block 111-induction light launch hole 15-color conversion illuminating circuit piece 17-laser sensor circuit block 23-microprocessor 24-recording and microphone switching key 241-microphone aperture 25-speech processing circuit piece 26-voice transmission module 28-wireless microphone circuit block 29-light shape and color switching key 321-charging hole 33-charge fault display circuit part 34-charging circuit piece 35-voice messaging button 38-vibrator 39-display screen 40-supersonic generator circuit block 41-start and close button 42-volume adjusting button 43-left mouse button 44-right mouse button 45-upturning key 46-downturning key 47-ringing key 50-electronic circuit board 51-color optical filtering whirligig 52-light alteration of form device 53-optical filter 54-unthreaded hole 55-luminous tube 56-light-emitting device 57-light shape hole 58-taper bullet shape locator card
Embodiment
Referring to Fig. 1, the utility model comprises remote controller body, the remote controller body top is provided with corresponding electronic teacher pointer information induction device 1, the collection of the information of being responsible for, identification, location and instruction send, after the instruction that information induction device 1 sends is received by receiver, the multimedia computer main frame is operated, show with other multimedia presentation equipment by display device and to move, electronic teacher pointer on the remote controller body also can point to display device simultaneously, operate accordingly, make the multimedia presentation equipment operation that is subjected to the multimedia computer host computer control.
Fig. 2 is the electronic circuit functional-block diagram of remote controller body, electronic circuit comprises microprocessor 23 and peripheral function circuit thereof, microprocessor 23 is connected with the function element circuit of electronic teacher pointer by the peripheral function circuit, and the peripheral function circuit also is connected with pronounciation processing chip, voice transmission module 26 with the audio decoder chip.Microprocessor 23 has Vib. A by peripheral function circuit control linkage, can give the prompting of demonstrator's Timing vibration.Specifically be that microprocessor 23 control linkages have storer A, storage and playback have microphone through recording device connected storage A, and microphone is connected with transmitter module 26 (can as shown in Figure 9 wireless microphone radiating circuit) simultaneously; Microprocessor 23 is the control linkage voice prompting device also, and voice prompting device is connected with storer B, and microprocessor can be transported to transmitter module 26 by voice prompting device with the language information of storer B storage.Storer A can be built-in audio decoder chip and pronounciation processing chip is a speech processing circuit piece 25, can encode to voice, decoding, DSP handle, and handles the back voice and is launched with wireless form by remote-control transmitting module 26; Audio decoder chip and pronounciation processing chip are arranged in the multimedia message recipient, voice are handled, realize earphone function by message recipient; By the audio decoder chip and the pronounciation processing chip 25 of remote controller body inside, can encode to voice, decoding, DSP handle voice are carried out intelligentized storage, finishes sound-recording function.Record the operation with earphone function of recording and microphone switching key 24 is installed on the remote controller body panel.
The used power supply of remote controller body is a rechargeable battery, be connected to rechargeable battery by charging module and external power source power supply is provided, there is LCDs 39 to be connected with rechargeable battery with charging module, the electric weight behaviour in service that can show charge condition and rechargeable battery, LCDs 39 also is connected with microprocessor, display remote controller corresponding work state.
The phototropic controller is arranged in the remote controller body, and also by rechargeable battery powered, the luminotron 55 of light-emitting device 56 is connected with rechargeable battery, and the luminotron of light-emitting device emits light into the phototropic controller.
Fig. 3, Fig. 4, Fig. 5 are synoptic diagram, upward view and the vertical view of remote controller body structure, straighforward operation key panel 5 is arranged on the remote controller body panel, be provided with the straighforward operation button of various functions above the straighforward operation key panel 5, be used for finishing control computer, write, various functions such as mark; LCDs 39 is also on the remote controller body panel, with the present duty of display remote controller, electronic circuit board is arranged, vibration fractional motor as Vib. 38, light color shape reforming unit 7, the information induction device 1 of electronic teacher pointer is installed under the panel with various relevant equipment, control linkage between remote controller body and the multimedia computer main frame, the demonstrator finishes every control operation by the operation push-button on the straighforward operation key panel 5, light color shape reforming unit 7 is in remote controller body, the light that produces is launched by the induction light transmitting aperture 111 at remote controller body top, to giant-screen, produce different color indicating effects; Being and not being line microphone circuit connects microphone aperture 241 in the remote controller body bottom, the charging hole 321 that is connected with charging module 34 in addition, and dispose charging indication and charge fault indicator circuit piece 33 that corresponding liquid crystal shows, be that liquid crystal display among Fig. 2 is connected with charge fault indicator circuit piece 33 with charging indication, this remote controller body adopts the rechargeable lithium battary power supply, charge repeatedly by charging IC or 34 pairs of batteries of charging module, realization can be used continuously; The length that remote controller body has an adjusting teacher's pointer that electronic teacher pointer 8 expansion links easily can be at any time satisfies the needs of teaching, and the electronic teacher pointer bar also can be used as emitting antenna simultaneously.
Electronic teacher pointer 8 general and with the connected mode of multimedia computer main frame be indirect connected mode, be connected transmission between information that collects by remote controller body and the various instruction information receptacle by receiver of remote-control sytem and the multimedia computer main frame.
Can be used as information induction device in the electronic teacher pointer 8 as the emitter of transmitter module, the function element circuit of electronic teacher pointer is the circuit of the information induction device in the electronic teacher pointer, this information induction device can adopt one of several devices described in the publication number CN1825262A, that is:
1, adopt ultrasound wave or infrared technique: ultrasonic generator 40 or infrared emittance 11 are installed in the electronic teacher pointer bodies top, be connected with the multimedia computer main frame by message recipient (can be USB or Bluetooth adapter), after the demonstrator is by the operating key operational order on the straighforward operation key panel 5 on the remote controller body (alternate of Control current), ultrasound wave or infrared emittance send corresponding ultrasonic signal or infrared signal, message recipient receives ultrasound wave or the infrared information that sends from telepilot, after inner signal Processing, connected mode by USB or Bluetooth adapter is transferred to above the computing machine, under the support of software, on the large screen display interface, finish every function.
2, adopt laser tracking technology: laser sensor 17 is installed at the electronic teacher pointer top at remote controller body, laser scanning device is arranged on message recipient, laser scanning device is connected with the multimedia computer main frame by USB or Bluetooth adapter, laser scanning device is followed the tracks of the electronic teacher pointer of remote controller body, particular location is transported on the computing machine by being connected with various instructions, under the support of software, finish every function such as indication, page turning, location, volume plus-minus, the recording or the like the instruction execution.
Consult Fig. 6, Fig. 7, on the electronic circuit board 50 in the remote controller body ultrasonic generator circuit block 40 or infrared emittance 11 or laser sensor circuit block 17 are arranged, on operation push-button panel 5, there is corresponding operation push-button (not shown among Fig. 7) to make the current switching of circuit, controls electronic teacher pointer top-emission ultrasound wave or infrared ray or receive laser scanning and follow the tracks of.
Wireless microphone circuit piece 28 and speech processing circuit piece 25 are arranged on the electronic circuit board 50, recording and microphone switching key 24 are installed on remote controller body, speech processing circuit piece 25 adopts the audio decoder technology, can encode to voice, decoding, after DSP handles, voice are launched with wireless form by voice transmission module 26, by message recipient voice are handled, realize earphone function, and regulate button 42 by volume and regulate volume, speech processing circuit piece 25 adopts audio decoder chip and pronounciation processing chip in the present embodiment, is the storer A (as shown in Figure 2) that is connected with microprocessor; Audio decoder chip and pronounciation processing chip can be encoded to voice, decoding, DSP are handled, and voice are carried out intelligentized storage, finish sound-recording function, and recording is stored in the multimedia computer main frame.And can play this recording by remote control as required, to emphasize key content.
In the present embodiment, microprocessor 23 can adopt MSP430F20xx, and the audio decoder chip can adopt Philip SAA775X, and pronounciation processing chip can adopt XF-S3011.
Among Fig. 7, also has voice messaging button 35, this voice messaging button 35 is that (this voice prompting device can adopt the commercially available prod for the voice prompting device of microprocessor 23 control linkages among Fig. 2, voice prompting device is recorded into file with the specific voice messaging that records and is stored, just play this voice document during activation), voice prompting device is connected with storer B, microprocessor 23 is transported to the language information of storer B storage in the control circuit of transmitter module 26 by voice prompting device, also be provided with operation push-button shake bell key 47 in this control circuit.Selection by button, the demonstrator makes microprocessor 23 send the alternate of instruction back Control current by button operation, microprocessor is transported to transmitter module 26 with the language information of storer B storage by voice prompting device, transmitter module can be the information induction device 1 in microphone radio transmitter piece (as the circuit among Fig. 9) or the electronic teacher pointer 8, send corresponding radio signal or ultrasonic signal or infrared signal, message recipient receives radio signal or ultrasound wave or the infrared information that sends from telepilot, after inner signal Processing, under the support of software, built-in speech chip play our statement that arrives relatively commonly used as: please everybody peace and quiet, on class, after class etc., or shake the tinkle of bells (during operation shake bell key 47), external loudspeaker by the multimedia computer main frame play back, and play caution, stable classroom order, the effect in stable meeting-place is the wooden block used by a magistrate to strike the table effect.
Also adopt vibrotechnique or lcd technology in remote controller body: built-in Vib. 38 is as fractional motor and embed LCDs 39, shown in Fig. 2, microprocessor has Vib. 38 by peripheral function circuit control linkage, can give the prompting of demonstrator's Timing vibration, Vib. 38 is built-in fractional motor, incoming timing vibrating alert information is finished the content setting by the mode of software in microprocessor 23, finishes this function (to speaker's suggesting effect).When class demonstration,, then provide vibrations or displaying information on screen, Timing vibration prompting demonstrator by built-in canned data.
On the remote controller body operation push-button panel of Fig. 7, also have left mouse button 43, right mouse button 44, upturning key 45, downturning key 46, these function buttons are connected with the corresponding interface of microprocessor 23, realization is to the control function of multimedia computer main frame, play wireless mouse and page-turning function, steering order is launched by transmitter module.
Referring to Fig. 8, light color shape reforming unit 7 adopts optical filtering technique and color synthetic technology: the luminotron 55 that comprises light-emitting device 56, color optical filtering whirligig 51, light alteration of form device 52, pilot light shape and color switching key 29 are installed on operation push-button panel 5, color optical filtering whirligig 51 can rotate around central shaft, by manual switchover button 29 optical filtering whirligig 51 rotating discs are pivoted, 7 optical filters 53 are arranged on the optical filtering rotating disc, can be respectively red, orange, yellow, green, blue or green, blue, the optical filter of purple 7 kinds of colors, make light pass the optical filter 53 of different colours, can change luminous color, simultaneously, also has taper bullet shape locator card 58 on the optical filtering rotating disc, and the locating slot (not shown) is arranged on the corresponding panel of light-emitting device 56, when color optical filtering whirligig 51 rotates by manual light shape and color switching key 29, taper bullet shape locator card 58 is deviate from locating slot, color optical filtering whirligig 51 just can rotate, when stopping the rotation, locator card enters new locating slot again, make light pass the optical filter 53 of another color, to change luminous color, taper bullet shape locator card 58 plays the fixedly effect of whirligig; Light alteration of form device 52 has movably light alteration of form plate, a plurality of difform unthreaded holes are arranged on the light alteration of form plate, as tri-angle-holed, diamond hole, annular hole, circular port etc., make in the chute (not shown) of light alteration of form plate in remote controller body mobile by manual pilot light shape and color switching key 29, regulate the position of light alteration of form plate, allow light pass difform unthreaded hole, to change the shape of luminous beam; Luminotron is a kind of luminescent device, can select the luminotron of model SM1206 for use.Change the CF of light beam to screen by change, in explanation, if thinking, we to emphasize that very part and parcel can be with circular red, the more important triangle redness of using, important relatively usefulness triangle green or the like, realize the readability and the viewability of emphasis explanation part, enhance memory.Luminotron 55 can be combined into the optical filtering whirligig of an integral body with filter whirligig 51 or light alteration of form device 52 of color, and wherein luminotron 55 is static, and color optical filtering whirligig 51 or light alteration of form device 52 are movable.Color optical filtering whirligig 51 or light alteration of form device 52 are to stir with hand by the user to come movablely, make different optical filter 53 aim at luminotrons 55, by after light just become the color of optical filter 53.
Fig. 9 is the circuit theory diagrams as the wireless microphone of an emitter, voice signal enters by microphone MK2, through capacitor C 17, resistance R 11, triode Q1, capacitor C 18, wherein capacitor C 19, C20, C21 has formed a capacitive high frequency oscillator, capacitor C 16, inductance L 5 has been formed a resonator, the frequency of resonator is exactly the transmission frequency of microphone, can change transmission frequency by adjusting the L5 parameter, the signal of emission is launched by antenna, resistance R 9 is base biasing resistors of triode Q2, provide certain base current to triode, make triode Q2 be operated in the amplification region, resistance R 12 is a DC feedback resistance, plays the effect of stablizing the triode working point.If playing the effect voltage of an amplitude limit, triode Q1 surpasses the conducting shunting past that 0.7V just passes through triode.The amplitude that can guarantee voice signal remains on 0.7V because strong excessively voice signal can cause the triode ovennodulation, produces audio distortions even can't work normally.
Its work principle is to realize frequency modulation by base stage of regulating triode Q2 and the electric capacity between the emitter, synchronous variation can take place along with sound voltage signal size in the base stage of triode and the electric capacity between the emitter when the sound voltage signal is added to the base stage of triode, the transmission frequency of triode is changed, realize dynamic frequency modulation (PFM).
This telepilot, in multimedia teaching, except effect with common teacher's pointer, cooperate with the computer multi-media demonstration equipment also have remote-control computer, write, function such as mark, can be as mouse, on screen, carry out operation to computer, and if in the process of explanation during relatively near unnecessary using a teleswitch of distance, we this moment can be independent the utilization teacher's pointer that can stretch come execute-in-place, this moment, this telepilot only was the teacher's pointer of an indication; When this telepilot of utilization, also can think that important part is recorded so that later work simultaneously to us; Important function is that can on-the-spot to point out in the process of teaching (mainly be the vibrations by remote controller body itself, or the captions of top display screen prompting), in addition this telepilot have built-in speech chip can play automatically we relatively more commonly used to statement (please everybody peace and quiet, give a lesson, finish class etc.) play caution, stabilize the effect of classroom order; This telepilot of what is more important have can show on the screen different colours and difform light remind audience's attention (such as we can show important content with the indication of the circle of redness in explanation, same we can with the triangle of green represent negligible or the like); This telepilot is easy to use, be easy to carry adjustable length, diverse in function.The being and not being line microphone circuit microphone aperture that is connected in remote controller body bottom realizes earphone function; The charging hole 321 that is connected with charging module 34 in addition, and dispose the charge fault indicator circuit piece 33 of corresponding charging indication and liquid crystal display, remote controller body adopts the rechargeable lithium battary power supply, charge repeatedly by charging IC or 34 pairs of batteries of charging module, realization can be used continuously, remote controller body can be inserted on the charging base when non-working condition at ordinary times, by charging module it is charged.