CN2179616Y - Multi-sensing electronic teaching appliances - Google Patents

Abstract

The utility model provides a multi-sensing electronic teaching appliance. The signal sources of radios, electronic organs, TV sets, etc., which are input into a power amplifier by a transfer switch, are respectively input in magnetic field coils, a receiving device, a sound box, and a lamp box by a control switch. An audio power amplifier is impelled by the transfer and the mixture of a great variety of acoustic signals, the acoustic signals are selected, and auditory effect can be realized by magnetoelectric conversion; visual effect can be generated by the control of the variation of the light in the lamp box; body sensing effect can be generated by the opening sound field of the sound box and the resonance vibration of the opening sound field and the floor, so that deaf students can be trained to dance, and the effect of multiple training in body, intelligence, audition, and body sensation for the deaf students can be achieved. The utility model is provides for the rhythm classrooms of schools for the deaf.

Description

Multi-sensing electronic teaching appliances

The utility model relates to a kind of audiovisual teaching equipment, specifically a kind of many sensation audiovisual teaching equipments that provide for school for the deaf regular movements classroom.

At present, school for the deaf regular movements classroom is used for deaf student is carried out the equipment of dancing and shape up exercise, mainly is piano and common big drum.Pull out and beat by bullet, utilize timber floor to the conduction of sound wave human body to be felt to some extent and realize the purpose of training the propagation of low audio frequency signal and air to two above-mentioned Chinese percussion instruments.Its training method is single, outmoded, often wants to reach a certain training goal, spend sizable strength (for deaf student), and weak effect.

The purpose of this utility model is to provide a kind of training patterns variation, makes the sense of hearing, vision, somatesthesia reach many sensations audiovisual teaching equipment of harmonious unification.

The purpose of this utility model realizes by following scheme.

A kind of many sensation audiovisual teaching equipments; By making audio electromagnetic field, utilize the T retaining coil of special-purpose magnetoelectricity conversion equipment or osophone to realize auditory effect, its principle: will be from the mechanical, electrical K that looks various sound signals such as machine by switch of mellotron, radio, OK in the classroom ₁～K _nThe single or marshalling of control change over to amplifier, connect the generation audio electromagnetic field by selector switch and the coil that is arranged in the carpet of regular movements classroom under again.The T retaining of receiving equipment or osophone is coil-induced behind electromagnetic riveting machine signal, carries out the conversion of magnetoelectricity tone mark and amplifies, and realizes the auditory effect to deaf student; Realize visual effect by the lamp box that is provided with at the classroom wall, principle is as follows: the electric signal from amplifier inputs to lamp box 1～lamp box n by selector switch, in lamp box 1～lamp box n the thyristor noncontacting switch is housed, change with the electric signal size that changes lamp box in order to the control light power and the rhythm and pace of moving things, thereby realization is to deaf student's visual effect; Realize the somatesthesia effect by the audio amplifier that four jiaos are laid in the classroom, principle is as follows: the electric tone mark from amplifier inputs to audio amplifier 1～audio amplifier 4 by switch, make its sound reproduction, utilize air that the conduction of sound wave and wooden audio amplifier and timber floor tight is connected the vibration that is produced, realization is to deaf student's somatesthesia effect.

The utility model provides a kind of many sensation audiovisual teaching equipments and since with signal sources such as radio, mellotron and televisor through switch, input to power amplifier, more respectively through gauge tap, input to field coil and receiving equipment, audio amplifier and lamp box.Thereby make this teaching equipment, can make deaf student produce the sense of hearing, vision and somatesthesia effect, and it is unified to make the sense of hearing, vision, somatesthesia reach consonance, can be used for deaf student is carried out dancing and shape up exercise, and can receive satisfied effect.

The utlity model has following accompanying drawing.

Fig. 1 is the logic sketch of many sensation audiovisual teaching equipments.

Fig. 2 is the field coil arrangenent diagram of many sensation audiovisual teaching equipments.

Fig. 3 is the receiving equipment circuit diagram of many sensation audiovisual teaching equipments.

Fig. 4 is the circuit diagram of the lamp box of many sensation audiovisual teaching equipments.

Fig. 5 is the audio amplifier and the ground connected mode figure of many sensation audiovisual teaching equipments.

Below in conjunction with accompanying drawing the utility model is described in detail.

Embodiment.

The logic sketch of many sensation audiovisual teaching equipments, as shown in Figure 1.From radio cassette player 1, mellotron 2, televisor 3 ... or signal source such as karaoke machine 4, by switch K ₁～K _n, input to power amplifier 5 alone or in combination or all.Switch K ₁～K _n, by R ₁, R ₅An end be connected with an output terminal in signal source, other end ground connection, R ₂, R ₆An end be connected with another output terminal in signal source, other end ground connection, R ₃, R ₄Be serially connected with two output terminals in signal source respectively.R ₁, R ₂In order to the R of the coupling of signal source output terminal ₅, R ₆With R ₃, R ₄Form 10:1.Power amplifier 5 can adopt commercially available special power amplifier, requires peak power output to want 200W * 2 at least.Audio signal after the amplification passes through K switch _AInput to the field coil AB6 of many sensation audiovisual teaching equipments, the arrangenent diagram of field coil AB, as shown in Figure 2.Loop A, B adopt φ 1 enameled wire, are distributed on the timber floor or are fixed in the certain high classroom, ground on the wall with adhesive tape.At first find out the Y-axis vertical point along X-axis on ground, classroom, putting with this is center arrangement coil B and to make its dc impedance be 10～15 ohm, with 1.2 meters of Z wheelbase ground be loop A antenna height, to set up loop A and make its current impedance at the classroom wall be 10～15 ohm, as gauge tap K _AWith the output quantity of power amplifier 5 can be controlled.This strong and weak electromagnetic field signal that changes is by the circuit diagram of receiving equipment 7 receptions, receiving equipment 7, as shown in Figure 3.By inductive coil M, convert the magnetic field signal to electric signal,, thereby make the loudspeaker sound reproduction realize deaf student's auditory effect again by wave filter, power amplifier.Wave filter among Fig. 3 is by electrochemical capacitor C ₁, R ₇Be serially connected with amplifier A ₁An input end, resistance R ₈, capacitor C ₂Cross-over connection is in A respectively ₁Input end and output terminal between.C ₁, C ₂Be used to limit the frequency range of audio signal, be typically chosen in the interior 300～3000HZ of language frequency scope and get final product, like this can following low-frequency noise and the above high frequency noise of 3000HZ of filtering 300HZ.R ₇With R ₈Ratio can adjust A ₁Gain.Resistance R ₁₈, electrochemical capacitor C ₃An end and A ₁Another input end connect, other end ground connection.R ₉An end and A ₁Another input end connection, the other end be connected with power supply.R ₉, R ₁₀, C ₃Be amplifier A ₁Biasing circuit when single power supply.Resistance R ₁₁An end and A ₁Output terminal connect, other end ground connection; Power amplifier among Fig. 3 is by electrochemical capacitor C ₄An end and A ₁Output terminal connection, the other end and adjustable potentiometer R _WAn end connect, R _WOther end ground connection, R _WSliding tap and power amplifier A ₂Input end connect electrochemical capacitor C ₅An end and A ₂Another input end connect, other end ground connection.Electrochemical capacitor C ₆An end and A ₂Output terminal connect, the other end passes through R ₁₂, C ₇R-C coupling and loudspeaker Z ₁Connect R ₁₂, C ₇R-C coupling prevents sound oscillation.C ₄, C ₆Be coupling capacitance, R _WThe control volume, power supply is 3V.Loudspeaker Z ₂Circuit and loudspeaker Z ₁Circuit identical.As shown in Figure 4, be the circuit diagram of lamp box 8.From gauge tap K _CElectric signal be coupled to each lamp box 8 through inductive coil M.The control circuit of lamp box 8 is through adjustable potentiometer W ₁The signal size that the control coupling comes, W ₁Sliding tap, resistance in series R ₁₇With amplifier A ₃Input end connect capacitor C ₁₁, C ₁₂, potentiometer W ₂, resistance R ₁₁, R ₁₂, R ₁₃, R ₁₄With amplifier A ₃Form feedback type frequency control network, R ₁₂With R ₁₇Ratio can adjust amplifier A ₃Enlargement factor, resistance R ₁₅, R ₁₆, electrochemical capacitor C ₁₃Be amplifier A ₃Biasing circuit, amplifier A ₃Signal controlling the turn-on frequency of silicon controlled T, and the conducting angle by bidirectional triode thyristor SR again makes lampion D _θLight or extinguish.Isolating transformer B is in order to cut off power amplifier A ₃And getting in touch of the 220V voltage between the bidirectional triode thyristor SR is again the trigger pip of T simultaneously.Thereby T meets disconnected colored electric lamp bulb D with its strong and weak conducting _θ(220V/100W bulb) produces the moving effect of light.Transformer B, rectifier bridge heap Q, electrochemical capacitor C ₄, capacitor C ₅, C ₆Form the power supply that the rectifying and wave-filtering network offers the lamp box ON-OFF control circuit.As shown in Figure 5, be audio amplifier and ground connected mode figure.Adopting rated power is that the audio amplifier 9 of 50W is 4, and its bottom half part is should be in the floor 10 glued together to empathize, and direction should be with 11 4 jiaos of best results staggered relatively of wall in classroom.Floor 10 can produce vibration makes foot produce the living haptic effect of wall, and the free field of audio amplifier 9 can make self generation haptic effect to the compressing of air.Also can adopt another kind of connected mode, bigbore bass horn 12 directly is fixed on the floor 10, forming relative big audio amplifier with floor 10 with the space on ground 14 by reflection hole 13 empathizes, reach vibrating effect, can be according to room-size, the watt level of floor 10 and ground 14 space lengths and amplifier is adjusted the quantity of loudspeaker and the size of reflection hole.

Claims (3)

1, a kind of many sensation audiovisual teaching equipments is characterized in that radio cassette player (1), mellotron (2), televisor (3) or karaoke machine signal sources such as (4) is single or switch K is given in combinatorial input _{(1,2,3 ... n)}, through power amplifier 5, more respectively to gauge tap K _A, K _BAnd K _C, input to field coil (6) and receiving equipment (7), audio amplifier 9 and some lamp boxes (8).

2, many sensation audiovisual teaching equipments as claimed in claim 1 is characterized in that receiving equipment (7), convert the magnetic signal of field coil (6) to electric signal by inductive coil M, through C ₁, R ₇Input to the input end of amplifier A, C ₂, R ₈Cross-over connection is in A respectively ₁Input end and output terminal between, filtered electric signal is through electrochemical capacitor C ₁₄, variable potentiometer R _WInput to amplifier A ₂An input end, again by loudspeaker Z ₁Sound reproduction.

3, many sensation audiovisual teaching equipments as claimed in claim 2, it is characterized in that lamp box (8) circuit, be connected W by inductive coil M, its secondary coil with the two ends of adjustable potentiometer W ₁Sliding tap through resistance R ₁₇Input to amplifier A ₃An input end, resistance R ₁₂Cross-over connection is in A ₃Input end and output terminal between, A ₃Output terminal be connected with the control utmost point of controllable silicon T, the negative electrode of controllable silicon T is connected with the control utmost point of bidirectional triode thyristor SR, the anode tap of SR or cathode terminal and color lamp D ₈Connect.

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