CN201072580Y - Audio evacuation indicator - Google Patents
Audio evacuation indicator Download PDFInfo
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- CN201072580Y CN201072580Y CNU2007201501188U CN200720150118U CN201072580Y CN 201072580 Y CN201072580 Y CN 201072580Y CN U2007201501188 U CNU2007201501188 U CN U2007201501188U CN 200720150118 U CN200720150118 U CN 200720150118U CN 201072580 Y CN201072580 Y CN 201072580Y
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Abstract
An audio evacuation indicator utilizing sound wave to indicate the direction of evacuation is provided, whose circuit configuration comprises an input wiring terminal, a voltage stabilizing circuit, a sequence pulse control circuit, a sequence pulse generating circuit, an audio oscillation circuit, a function setting switch, a power amplification circuit and an output wiring terminal. Three loudspeakers or loudspeaker circuits can send out periodical interval sound wave according to sequence and can increase flash direction indication; the function setting switch controls the working mode of the audio oscillation circuit and indicates four different directions of evacuation including ''up, down, left and right''. The audio evacuation indicator is installed in the buildings to indicate distinct direction of safe evacuation and accelerate evacuation speed of people when fire alarm rings. The audio evacuation indicator can be used individually or connected into the existing automatic fire alarm system via an output module. A fire alarm host machine controls the direction of evacuation specified by the audio evacuation indicator.
Description
Technical field
The utility model relates to the evacuation indicator in a kind of automatic fire alarm system, and when breaking out of fire accident or other accidents need be evacuated the crowd, this device sent clocklike intermittent acoustic signals, for people indicate tangible evacuation direction.
Background technology
At present, when in the buildings during breaking out of fire, automatic fire alarm system gives the alarm to people by modes such as alarm bell, audible-visual annunciator, fire accident broadcasts, and crowd's evacuation direction is then evacuated direction board by light emitting-type and indicated.Owing to evacuate the restriction that direction board carries the emergency power pack capacity, it is lower that existing light emitting-type is evacuated the general illumination of direction board, and be installed in apart from the position below the 1m of ground, when full of smoke or crowd is chaotic, its visual degree reduces greatly, for the effect of crowd's direction indication also greatly reduces.
Summary of the invention
Evacuate direction board can not effectively be indicated the evacuation direction when having an accident deficiency in order to overcome light emitting-type, the purpose of this utility model provides a kind of audio frequency that utilizes the sound wave indication to evacuate direction and evacuates indicator.Because the penetration capacity of sound wave is strong, propagation distance is far away, and it is not subjected to the influence of smog to crowd's evacuation indicative function, can indicate the crowd to leave the scene of the accident fast, reduces injures and deaths.
Further purpose of the present utility model provides a kind of sound wave indication evacuation direction of mainly utilizing, and having the flash of light indication concurrently and evacuating the audio frequency evacuation indicator that direction cooperates.
The technical scheme that its technical matters that solves the utility model adopts is: audio frequency is evacuated indicator and is adopted following circuit to constitute, it comprises the input wires terminal, mu balanced circuit, the pulse sequence control circuit, sequential pulse produces circuit, audio oscillator circuit, function setting switch, power amplification circuit and output wiring terminal, terminals (the A+ that it is 20~24V that described input wires terminal has two pairs of input voltages, A-and B+, B-), be connected to the input end of mu balanced circuit, have two output end of pressure-stabilizing on the described mu balanced circuit, corresponding with two pairs of input voltages respectively, these two output end of pressure-stabilizing are connected to described pulse sequence control circuit input end, and export the supply voltage of a direct current voltage as this machine, the output terminal of pulse sequence control circuit is connected with the input end that sequential pulse produces circuit, produce the three ends output that pulse signal is periodically sent in formation in order on the circuit at sequential pulse, this three end is connected respectively to the input end of three audio oscillator circuits, behind three power amplification circuits, be connected to output wiring terminal separately more respectively, the output wiring terminal of each power amplification circuit connects a loudspeaker or speaker circuit respectively, make three loudspeakers that connect send periodic gap sound wave in order, said function setting switch is connected between three audio oscillator circuits, in order to the mode of operation of control audio oscillatory circuit.
The circuit board that this audio frequency is evacuated indicator is installed in the insulated fireproof shell, and described function setting switch is set with " stair " and " aisle " two kinds of mode of operations.When being set at " stair " pattern, this device indicating is installed in the stair mouth, an external loudspeaker, control circuit periodically produces three tonepulses of arranging by descending tone or ascending order tone, each tonepulse continues 0.5~1 second, in intermittently 1~2 second each cycle, when loudspeaker sent the descending tone, indication the crowd evacuated downwards along stair; When loudspeaker sent the ascending order tone, the indication crowd upwards evacuated along stair.When being set at " aisle " pattern, this device indicating is installed in complicated many curved aisle, external three loudspeakers, every in order spacing one segment distance is installed a loudspeaker, control circuit periodically produces three fixedly tonepulses of tone, and each tonepulse continues 0.5~1 second, intermittently 1~2 second each cycle, loudspeaker is according to a left side---in---during right order sounding, indication the crowd evacuate to the right; Loudspeaker is according to the right side---in---left side the order sounding time, indication the crowd evacuate left.
By flashing control circuit of adjunction again on each above-mentioned speaker circuit, each flashing control circuit connects the flash of light arrow display screen that one of control is made up of the left arrow of flash of light, glisten arrow shaft and the right arrow that glistens, and can make this audio frequency evacuate indicator and being equipped with the auxiliary indication evacuation of flash of light direction on the basis of direction realizing that the sound wave indication is evacuated.
The beneficial effects of the utility model are: can with existing any automatic fire alarm system compatibility.Audio frequency is evacuated output control module access automatic fire alarm system and the participation system addressing of indicator by automatic fire alarm system, according to on-site actual situations, control is installed in the audio frequency of stair mouth and evacuates indicator indicating downlink evacuation direction or up evacuation direction by the automatic fire alarm main frame; The audio frequency that control is installed in the aisle is evacuated indicator indication left lateral evacuation direction or right lateral evacuation direction.Evacuate the intelligent and optimized purpose of evacuation route of direction thereby reach.
Description of drawings
Fig. 1 is the schematic block circuit diagram that audio frequency is evacuated indicator;
Fig. 2 is a kind of concrete enforcement circuit diagram that audio frequency is evacuated indicator;
Fig. 3 shows the mounted inside figure of audio frequency evacuation indicator;
Fig. 4 is that the G-G of Fig. 3 is to cut-open view;
Fig. 5 is that audio frequency evacuation indicator is installed in the aisle, and the wiring diagram of direction is evacuated in indication " left lateral ";
Fig. 6 is that audio frequency evacuation indicator is installed in the aisle, and the wiring diagram of direction is evacuated in indication " right lateral ";
Fig. 7 is that audio frequency is evacuated the wiring diagram that indicator is installed in stair mouth indication " descending " evacuation direction;
Fig. 8 is that audio frequency is evacuated the wiring diagram that indicator is installed in stair mouth indication " up " evacuation direction;
Fig. 9 has the flash of light indication to evacuate the schematic block circuit diagram that the audio frequency of direction is evacuated indicator;
Figure 10 evacuates a kind of concrete enforcement circuit diagram that the audio frequency of direction is evacuated indicator for having the flash of light indication;
Figure 11 has the flash of light indication to evacuate the outside drawing that the audio frequency of direction is evacuated indicator.
Embodiment
Embodiment one
The circuit block diagram of present embodiment as shown in Figure 1, input signal is the DC voltage of 20~24V, from input wires terminal " A+; A " perhaps " B+; B-" end input, after the mu balanced circuit voltage stabilizing, output 5V DC voltage is used for this machine, two output end of pressure-stabilizing of mu balanced circuit are connected to pulse sequence control circuit input end, the pulse sequence that the decision of pulse sequence control circuit is produced, the sequential pulse that sequential pulse sends with producing circuit period property, import audio oscillator circuit respectively 1., audio oscillator circuit 2. with audio oscillator circuit 3., control the pulse of three audio oscillator circuit order output audios, again respectively 1. through power amplification circuit, 3. 2. power amplification circuit carry out driving loudspeaker respectively 1. after the power amplification with power amplification circuit, loudspeaker 2. with loudspeaker 3., make it to send in order periodic of short duration sound wave, be provided with function setting switch between three audio oscillator circuits, this function setting switch is set with " stair " and " aisle " two kinds of mode of operations.When from " A+; A-" input signal, 1. the pulse sequence control circuit periodically sends the 2. 3. pulse of order, if this moment, function setting switch was in " aisle " position, three audio oscillator circuits are respectively by 1. 2. 3. the tonepulse of order output same frequency, respectively through power amplification circuit 1., power amplification circuit drive respectively after 2. 3. carrying out power amplification with power amplification circuit loudspeaker 1., loudspeaker 2. with loudspeaker 3., by 1. 2. 3. order send periodic of short duration sound wave; If function setting switch is in " stair " position, audio oscillator circuit frequency 1. is minimum, audio oscillator circuit frequency 2. is placed in the middle, audio oscillator circuit frequency 3. is the highest, after switch switches, send into power amplification circuit 3., drive loudspeaker and 3. send periodic of short duration sound wave in proper order by basic, normal, high rising tune.And when from " B+, B-" end input signal and function setting switch during in " aisle " position, described each loudspeaker by 3. 2. 1. order send periodic of short duration sound wave; When holding input signal and function setting switch in " stair " position from " B+, B-", 3. loudspeaker sends periodic of short duration sound wave in proper order by high, medium and low falling tone.Thereby evacuation direction to crowd's indication " upper and lower, left and right ".
Fig. 2 is the concrete enforcement circuit of present embodiment, evacuate in the indicator circuit at this audio frequency, I is the input wires terminal, II is a mu balanced circuit, and III is the pulse sequence control circuit, and IV is that sequential pulse produces circuit, V is an audio oscillator circuit, VI is a function setting switch, and VII is a power amplification circuit, and VIII is an output wiring terminal.Input wires terminal I comprises A+, A-, B+, B-two butt joint line ends, and mu balanced circuit II comprises resistance R 1, R2, and (model is: MC7805BT) for three terminal integrated voltage stabilizer W1, W2; Ground connection after the earth terminal of connection terminal A-, B-and three terminal integrated voltage stabilizer W1, W2 links together, receive input wires terminal A+ after the input end of three terminal integrated voltage stabilizer W1 and resistance R 1 series connection, receive input wires terminal B+ after the input end of three terminal integrated voltage stabilizer W2 and the R2 series connection.Pulse sequence control circuit III comprises diode D1, D2, D3, D4, (model is: 74LS00N for resistance R 3, R4 and two input end Sheffer stroke gate integrated circuit U1, form by U1A, U1B, U1C and U1D), integrated circuit U6 (model is: 74LS32N, form) by U6A, U6B and U6C; The output terminal of three terminal integrated voltage stabilizer W1 is connected on the positive pole of diode D1, and the negative pole of diode D1 is through resistance R 3 back ground connection; The output terminal of three terminal integrated voltage stabilizer W2 is connected on the positive pole of diode D2, and the negative pole of diode D2 is through resistance R 4 back ground connection; The positive pole of diode D3 connects the output terminal of three terminal integrated voltage stabilizer W1, the positive pole of diode D4 connects the output terminal of three terminal integrated voltage stabilizer W2, after linking together, the negative pole of diode D3, D4 is connected to the power end of integrated circuit U1, U2, U3, U6 and output power amplifier, the input end of two input end Sheffer stroke gate integrated circuit U1C is received the negative pole of diode D1, and another input end is received the output terminal of U1D; The input end of U1D is received the negative pole of diode D2, and another input end is received the output terminal of U1C; The input end of U1A connects the output terminal of U1D, and the input end of U1B connects the output terminal of U1C, after another input end of U1A and another input end of U1B link together, is connected to the output terminal of U6C.Sequential pulse produces circuit I V and comprises resistance R 5, R6, capacitor C 6, and (model is integrated circuit U2: 74LS194N), (model is integrated circuit U3: 74LS132N.Form by U3D); Two input ends of integrated circuit U3D connect together, through capacitor C 6 back ground connection; The input end of resistance R 6 and integrated circuit U3D, output terminal parallel connection; The CLK input end of integrated circuit U2 is connected to the output terminal of integrated circuit U3D; Ground connection after carry input SR, the SL of U2 and data input pin B, C connect together; The end of connecting resistance R5 after the CLR input end of U2 and data input pin A, D connect together, the other end of R5 is connected to the negative pole of diode D3; The working method control end S0 of integrated circuit U2 is connected to the output terminal of integrated circuit U1A, and the working method control end S1 of integrated circuit U2 is connected to the output terminal of integrated circuit U1B; Output terminal QA, the QB of integrated circuit U2 connects two input ends of integrated circuit U6A respectively, output terminal QC, the QD of U2 connects two input ends of integrated circuit U6B respectively, and the output terminal of the output terminal of integrated circuit U6A and integrated circuit U6B is connected two input ends of integrated circuit U6C respectively; Audio oscillator circuit V comprises resistance R 7, R8, R9, R10, R11, R12, R13, R14, capacitor C 1, C2, C3, C4, C5 and integrated circuit U3 (model is: 74LS132N, form by U3A, U3B and U3C); SW among the function setting switch VI is the toggle switch of a four blade double-throw; The input end of integrated circuit U3C connects the output terminal QD of integrated circuit U2, another input end of integrated circuit U3C connects an end of capacitor C 1, C2 and resistance R 7 respectively, the other end of resistance R 7 connects the output terminal of integrated circuit U3C, the other end ground connection of capacitor C 1, the other end linkage function of capacitor C 2 is provided with switch; One end of resistance R 13 connects the output terminal of integrated circuit U3C, and the other end linkage function of resistance R 13 is provided with switch; The input end of integrated circuit U3B connects the output terminal QC of integrated circuit U2, another input end of integrated circuit U3B connects an end of capacitor C 3, C4 and resistance R 8 respectively, the other end of resistance R 8 connects the output terminal of integrated circuit U3B, the other end ground connection of capacitor C 3, the other end linkage function of capacitor C 4 is provided with switch; One end of resistance R 14 connects the output terminal of integrated circuit U3B, and the other end linkage function of resistance R 14 is provided with switch; The input end of integrated circuit U3A connects the output terminal QB of integrated circuit U2, another input end of integrated circuit U3A connects an end of capacitor C 5 and resistance R 9 respectively, the other end of resistance R 9 connects the output terminal of integrated circuit U3A, the other end ground connection of capacitor C 5.Power amplification circuit VII comprises resistance R 15, R16, R17 and triode (NPN type) Q1, Q2, Q3; Be connected to the output terminal of integrated circuit U3C after the base stage of triode Q1 and resistance R 10 series connection, be connected to the negative pole of diode D3 after the collector of triode Q1 and resistance R 15 series connection, the grounded emitter of triode Q1, the collector of triode Q1 connects the OUT1 of output wiring terminal; Be connected to the output terminal of integrated circuit U3B after the base stage of triode Q2 and resistance R 11 series connection, be connected to the negative pole of diode D3 after the collector of triode Q2 and resistance R 16 series connection, the grounded emitter of triode Q2, the collector of triode Q2 connects the OUT2 of output wiring terminal; The base stage linkage function of triode Q3 is provided with switch, be connected to the output terminal of integrated circuit U3A after the base stage of triode Q3 and resistance R 12 series connection, be connected to the negative pole of diode D3 after the collector of triode Q3 and resistance R 17 series connection, the grounded emitter of triode Q3, the collector of triode Q3 connects the OUT3 of output wiring terminal.Output wiring terminal VIII comprises common port, OUT1, OUT2, four terminals of OUT3, common end grounding wherein, and outlet terminal OUT1, OUT2, OUT3 are connected with a loudspeaker respectively.
This circuit is work like this: when from terminals " A+; A-" input 24V d. c. voltage signal, this voltage is after three terminal integrated voltage stabilizer W1 voltage stabilizing, its voltage signal is by the input end of its output terminal through diode D1 input U1C, make U1D be output as one state, U1C is output as " 0 " attitude, thereby U1A is open-minded.U1A is output as " 0 " attitude, U1B closes, U1B is output as one state, by U1A, U1B is to S0 and the S1 control end output pulse sequence control signal (S0S1=01) of U2, at this moment sequential pulse produces the output terminal (QB of circuit U 2, QC, QD) periodically send pulse signal in order, import audio oscillator circuit U3A respectively, (1. ordering is respectively for U3B and U3C, 2., 3.), control three audio oscillator circuit output audio pulses in order, if at this moment function setting switch is dialled in the position, aisle, audio oscillator circuit will be by 1., 2., the tonepulse of order output same frequency 3., after power amplification, export separately loudspeaker to, drive loudspeaker by 1. by output wiring terminal, 2., 3. order is sent periodic of short duration sound wave.If function setting switch is dialled in " stair " position, then the frequency of audio oscillator circuit U3A is minimum, the frequency of audio oscillator circuit U3B is placed in the middle, the frequency of audio oscillator circuit U3C is the highest, after power amplification, export loudspeaker to, drive loudspeaker and send periodic of short duration sound wave in proper order by basic, normal, high rising tune by output wiring terminal.
When from terminals " B+; B-" input 24V d. c. voltage signal, this voltage is after three terminal integrated voltage stabilizer W2 voltage stabilizing, its voltage signal is by the input end of its output terminal through diode D2 input U1D, make U1C be output as one state, U1D is output as " 0 " attitude, thereby U1B is open-minded, U1B is output as " 0 " attitude, U1A closes, U1A is output as one state, by U1A, U1B is to S0 and the S1 control end output pulse sequence control signal (S0S1=10) of U2, at this moment sequential pulse produces the output terminal (QB of circuit U 2, QC, QD) periodically send pulse signal in order, import audio oscillator circuit U3A respectively, (1. ordering is respectively for U3B and U3C, 2., 3.), control three audio oscillator circuit output audio pulses in order, if at this moment function setting switch is dialled in the position, aisle, audio oscillator circuit will be by 3., 2., the tonepulse of order output same frequency 1., after power amplification, press 3. respectively, 2., 1. order exports separately loudspeaker to by output wiring terminal, drives loudspeaker by 3., 2., 1. order is sent periodic of short duration sound wave.If function setting switch is dialled in " stair " position, then the frequency of audio oscillator circuit U3A is minimum, the frequency of audio oscillator circuit U3B is placed in the middle, the frequency of audio oscillator circuit U3C is the highest, after power amplification, export speaker circuit to, drive loudspeaker and send periodic of short duration sound wave in proper order by high, medium and low falling tone by output wiring terminal.
Fig. 3 shows the mounted inside figure of this audio frequency evacuation indicator; Fig. 4 is that the G-G of Fig. 3 is to cut-open view.Among the figure, the 1st, insulation crust, the 2nd, circuit board, the 3rd, A group input wires terminal (is A+, A-), the 4th, B group input wires terminal (is B+, B-), the 5th, the function setting switch SW of setting mode of operation, the 6th, output wiring terminal OUT1, the 7th, output wiring terminal OUT3, the 8th, output wiring terminal OUT2, the 9th, loudspeaker, the 10th, LED light.
Fig. 5 has shown that audio frequency evacuation indicator is installed in the aisle, and the wiring diagram of direction is evacuated in indication " left lateral ".Three audio frequency evacuate indicator by 1., 2., 3. level is installed point-blank, at a distance of 1.5 meters.12 is outside 24V direct supplys among the figure, is connected on A group input wires terminal A+, the A-.The 13rd, the connecting line of output wiring terminal OUT1.The 14th, the connecting line of output wiring terminal OUT3.
Fig. 6 has shown that audio frequency evacuation indicator is installed in the aisle, and the wiring diagram of direction is evacuated in indication " right lateral ".Three audio frequency evacuate indicator 1., 2., 3. level is installed point-blank, at a distance of 1.5 meters.12 is outside 24V direct supplys among the figure, is connected on B group input wires terminal B+, the B-.The 13rd, the connecting line of output wiring terminal OUT1.The 14th, the connecting line of output wiring terminal OUT3.
Fig. 7 has shown that audio frequency evacuation indicator is installed in the wiring diagram that direction is evacuated in stair mouth indication " descending ".12 is outside 24V direct supplys among the figure, is connected on B+, the B-of B group input wires terminal.
Fig. 8 has shown that audio frequency evacuation indicator is installed in the wiring diagram that direction is evacuated in stair mouth indication " up ".12 is outside 24V direct supplys among the figure, is connected on A+, the A-of A group input wires terminal.
Embodiment two
The circuit block diagram of present embodiment as shown in Figure 9, its input wires terminal, mu balanced circuit, the pulse sequence control circuit, sequential pulse produces circuit, audio oscillator circuit, the annexation of function setting switch and power amplification circuit each several part is identical with Fig. 1 of embodiment one, difference is that power amplification circuit 1., 1. 3. 2. power amplification circuit be connected speaker circuit respectively with power amplification circuit, speaker circuit 2. with speaker circuit 3., speaker circuit 1., 1. 3. 2. speaker circuit be connected flashing control circuit respectively again with speaker circuit, flashing control circuit 2. with flashing control circuit 3., flashing control circuit is 1., 1. 3. 2. flashing control circuit control flash of light arrow display screen respectively with flashing control circuit, flash of light arrow display screen 2. with flash of light arrow display screen 3..
Figure 10 is the concrete enforcement circuit of present embodiment, evacuate in the indicator circuit at this audio frequency, input wires terminal I, mu balanced circuit II, pulse sequence control circuit III, sequential pulse produces circuit I V, audio oscillator circuit V, function setting switch VI, power amplification circuit VII is identical with Fig. 2 of embodiment one with the circuit of output wiring terminal VIII each several part.Difference is three identical outlet terminal OUT1, OUT2, OUT3 that are connected to output wiring terminal VIII as the output executing circuit that includes speaker circuit IX, flashing control circuit X and flash of light arrow display screen XI among Figure 10.Described speaker circuit IX comprises three duplicate circuit, and each circuit comprises connection terminal J, resistance R 24, diode D9, D10, D11, D12, LED 1, LED2, transformer TR, loudspeaker Y; Two terminals of connection terminal J are connected with one of them of the common port of output wiring terminal VIII and OUT1, OUT2, OUT3 respectively; The positive pole of diode D9 is connected with the negative pole of diode D10, and the positive pole of diode D11 is connected with the negative pole of diode D12, and the negative pole of diode D9 is connected with the negative pole of diode D11, and the positive pole of diode D10 is connected with the positive pole of diode D12; Be connected with the negative pole of diode D11 after the positive pole of LED 1, LED2 (formation LED light) links together, be connected with the positive pole of diode D12 after the negative pole of LED 1, LED2 links together; Resistance R 24 and LED 2 parallel connections; Terminals of the terminal 1 of connection terminal J and the primary coil of transformer TR are connected, and another terminals of the primary coil of transformer TR are connected with the negative pole of diode D12, and the terminal 2 of connection terminal J is connected with the negative pole of diode D10; The secondary coil of transformer TR and loudspeaker Y parallel connection.Described flashing control circuit X comprises three duplicate circuit, each circuit comprises connection terminal J12, resistance R 18, R19, R20, R21, R22, R23, diode D15, D16, D17, D18, D19, D20, D21, triode (NPN type) Q11, Q12, Q13, Q14, capacitor C 10; Two terminals of connection terminal J12 connect A+, the B+ of input wires terminal respectively; Two terminals of connection terminal J12 are connected with the positive pole of diode D19, D20 respectively, and the negative pole of diode D19, D20 connects together; Be connected with an end of resistance R 18 after the positive pole of diode D15, D16 connects together, the other end of resistance R 18 is connected with the positive pole of diode D19; Be connected with an end of resistance R 19 after the positive pole of diode D17, D18 connects together, the other end of resistance R 19 is connected with the positive pole of diode D20; The negative pole of diode D16, D17 connects together; The base stage of triode Q11 is connected with the collector of triode Q12, is connected with the negative pole of LED 1 after the emitter of the emitter of triode Q11 and triode Q12 connects together; One end of the collector of triode Q12 and resistance R 20 is connected, and the other end of resistance R 20 is connected with the negative pole of diode D20, and an end of the base stage of triode Q12 and resistance R 23 is connected, and the other end of resistance R 23 is connected with the collector of triode Q13; One end of capacitor C 10 is connected with the collector of triode Q12, and the other end of capacitor C 10 is connected with the base stage of triode Q13; One end of resistance R 21 is connected with the base stage of triode Q13, and the other end of resistance R 21 is connected with the negative pole of diode D19; One end of resistance R 22 is connected with the collector of triode Q13, and the other end of resistance R 22 is connected with the negative pole of diode D19; The collector of triode Q14 is connected with the base stage of triode Q13, is connected with the negative pole of LED 1 after the emitter of triode Q12, Q13, Q14 connects together; The base stage of triode Q14 is connected with the negative pole of diode D21, and the positive pole of diode D21 is connected with the positive pole of LED 1.Described flash of light arrow display screen XI comprises luminous left arrow Left, luminous arrow shaft Middle, luminous right arrow Right; The positive pole of luminous left arrow Left is connected with the negative pole of diode D15, the negative pole of luminous arrow shaft Middle and diode D16 is connected, the positive pole of luminous right arrow Right is connected with the negative pole of diode D18, is connected with the collector of triode Q11 after the negative pole of luminous left arrow Left, luminous arrow shaft Middle, luminous right arrow Right connects together; When luminous left arrow Left and luminous arrow shaft Middle are simultaneously glittering, form glittering left arrow " ← " shape; When luminous arrow shaft Middle and luminous right arrow Right are simultaneously glittering, form glittering right arrow " → " shape.
This circuit is work like this: when from terminals " A+; A-" input 24V d. c. voltage signal, if function setting switch is dialled when the position, aisle, audio oscillator circuit will as described in the embodiment one by 1., 2., the tonepulse of 3. order output same frequency, after power amplification, export separately speaker circuit to by output wiring terminal, drive loudspeaker by 1., 2., 3. order sends periodic of short duration sound wave, light emitting diode is along with sound wave flashes; The flashing control circuit of the audio pulse of speaker circuit input simultaneously, control flash of light arrow is lighted, form left arrow " ← " shape and along with sound wave by 1., 2., 3. sequence period ground is glittering.If function setting switch is dialled in " stair " position, then the frequency of audio oscillator circuit U3A is minimum, the frequency of audio oscillator circuit U3B is placed in the middle, the frequency of audio oscillator circuit U3C is the highest, after power amplification, export speaker circuit to by output wiring terminal, drive loudspeaker and send periodic of short duration sound wave in proper order by basic, normal, high rising tune, light emitting diode is along with sound wave flashes; The flashing control circuit of the audio pulse of speaker circuit input simultaneously, the flash of light arrow of controlling left arrow " ← " shape is along with sound wave periodically glittering (be mounted to upward arrow " ↑ " with left arrow " ← " this moment).
When from terminals " B+; B-" input 24V d. c. voltage signal, if function setting switch is dialled in the position, aisle, audio oscillator circuit will as described in the embodiment one by 3., 2., the tonepulse of 1. order output same frequency, after power amplification respectively by 3., 2., 1. order exports separately speaker circuit to by output wiring terminal, drive loudspeaker by 3., 2., 1. order sends periodic of short duration sound wave, light emitting diode is along with sound wave flashes; The flashing control circuit of the audio pulse of speaker circuit input simultaneously, control flash of light arrow is lighted, form right arrow " → " shape and along with sound wave by 3., 2., 1. sequence period ground is glittering.If function setting switch is dialled in " stair " position, then the frequency of audio oscillator circuit U3A is minimum, the frequency of audio oscillator circuit U3B is placed in the middle, the frequency of audio oscillator circuit U3C is the highest, after power amplification, export speaker circuit to by output wiring terminal, drive loudspeaker and send periodic of short duration sound wave in proper order by high, medium and low falling tone, light emitting diode is along with sound wave flashes; The flashing control circuit of the audio pulse of speaker circuit input simultaneously, the flash of light arrow of controlling right arrow " → " shape is along with sound wave periodically glittering (be mounted to down arrow " ↓ " with right arrow " → " this moment)
Figure 11 evacuates the front outside drawing of indicator embodiment for this audio frequency.Among the figure: the 9th, loudspeaker, the 10th, LED light, the 11st, flash of light arrow display screen.
Claims (3)
1. an audio frequency is evacuated indicator, it is characterized in that: its circuit formation comprises the input wires terminal, mu balanced circuit, the pulse sequence control circuit, sequential pulse produces circuit, audio oscillator circuit, function setting switch, power amplification circuit and output wiring terminal, the terminals A+ that it is 20~24V that described input wires terminal has two pairs of input voltages, A-and B+, B-, be connected to the input end of mu balanced circuit, have two output end of pressure-stabilizing on the described mu balanced circuit, corresponding with two pairs of input voltages respectively, these two output end of pressure-stabilizing are connected to described pulse sequence control circuit input end, and export the supply voltage of a direct current voltage as this machine, the output terminal of pulse sequence control circuit is connected with the input end that sequential pulse produces circuit, produce the three ends output that pulse signal is periodically sent in formation in order on the circuit at sequential pulse, this three end is connected respectively to the input end of three audio oscillator circuits, behind three power amplification circuits, be connected to output wiring terminal separately more respectively, the output wiring terminal of each power amplification circuit connects a loudspeaker or speaker circuit respectively, said function setting switch is connected between three audio oscillator circuits, in order to the mode of operation of control audio oscillatory circuit.
2. audio frequency according to claim 1 is evacuated indicator, it is characterized in that: the three end integrated circuit that it is MC7805BT that said mu balanced circuit adopts two models are formed, the integrated circuit that it is 74LS00N that said pulse sequence control circuit adopts a model and the integrated circuit composition that model is 74LS32N, the integrated circuit that it is 74LS194N by a model that said sequential pulse produces circuit is formed, the integrated circuit that said audio oscillator circuit is 74LS132N by a model is formed, said function setting switch is 4 single-pole double-throw switch (SPDT)s, connects into " stair " and " aisle " two kinds of mode of operations.
3. audio frequency according to claim 1 is evacuated indicator, it is characterized in that: also connect a flashing control circuit on each speaker circuit, described each flashing control circuit connects the flash of light arrow display screen that one of control is made up of the left arrow of flash of light, glisten arrow shaft and the right arrow that glistens.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CNU2007201501188U CN201072580Y (en) | 2006-05-25 | 2007-05-11 | Audio evacuation indicator |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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CN200620059343.6 | 2006-05-25 | ||
CN200620059343 | 2006-05-25 | ||
CNU2007201501188U CN201072580Y (en) | 2006-05-25 | 2007-05-11 | Audio evacuation indicator |
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CN201072580Y true CN201072580Y (en) | 2008-06-11 |
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Family Applications (1)
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CNU2007201501188U Expired - Fee Related CN201072580Y (en) | 2006-05-25 | 2007-05-11 | Audio evacuation indicator |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104282099A (en) * | 2013-07-04 | 2015-01-14 | 公安部沈阳消防研究所 | Position identifying device for guiding people to scatter based on audio technology and control method thereof |
CN105225378A (en) * | 2015-11-05 | 2016-01-06 | 公安部沈阳消防研究所 | Acousto-optic Multi-information acquisition guidance system and method in building |
-
2007
- 2007-05-11 CN CNU2007201501188U patent/CN201072580Y/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104282099A (en) * | 2013-07-04 | 2015-01-14 | 公安部沈阳消防研究所 | Position identifying device for guiding people to scatter based on audio technology and control method thereof |
CN105225378A (en) * | 2015-11-05 | 2016-01-06 | 公安部沈阳消防研究所 | Acousto-optic Multi-information acquisition guidance system and method in building |
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