CN108437889A - A kind of sound-producing device and its control method with multiple warning function - Google Patents
A kind of sound-producing device and its control method with multiple warning function Download PDFInfo
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- CN108437889A CN108437889A CN201810194655.5A CN201810194655A CN108437889A CN 108437889 A CN108437889 A CN 108437889A CN 201810194655 A CN201810194655 A CN 201810194655A CN 108437889 A CN108437889 A CN 108437889A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/50—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking
- B60Q1/525—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating other intentions or conditions, e.g. request for waiting or overtaking automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q5/00—Arrangement or adaptation of acoustic signal devices
- B60Q5/001—Switches therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Push-Button Switches (AREA)
- Alarm Systems (AREA)
Abstract
The invention discloses a kind of sound-producing devices and its control method with multiple warning function, including input circuit, microcontroller, light emission drive circuit, light-emitting device, sounding driving circuit and sound-producing device, input circuit connects microcontroller, microcontroller is separately connected light emission drive circuit and sounding driving circuit, light emission drive circuit connects light-emitting device, and sounding driving circuit connects sound-producing device.The design that input circuit is switched using combination button controls the different sounding state of sound-producing device by pressing weight, avoid in emergency circumstances driver in a great rush among push the wrong button, it can make a sound simultaneously and more warn sense than conventional truck whistle sound, at the same time the situation for being likely encountered deaf-mute is considered, the present invention also adds light-emitting device on vehicle sounder, convenient for reminding the deaf-mute that can't hear sound, and luminous combined with sounding can more play warning effect.The configuration of the present invention is simple, it is highly practical, have good market prospects.
Description
Technical field
The invention belongs to vehicle sounder fields, specifically design a kind of sound-producing device with multiple warning function and its
Control method.
Background technology
Current existing vehicle sounder system sounding is single, is difficult to outwardly send out warning letter in an emergency situation
Number.Under normal circumstances, when vehicle is crowded, it is only necessary to press sound-producing device button, sound-producing device sends out whistle sound, energy
Enough needs met under normal circumstances.But in the occasion of particularly urgent, such as to lose control of one's vehicle, driver's premonition will be with other vehicles
Collide or other in emergency circumstances driver is there is an urgent need to remind other side to avoid, to avoid accident as far as possible.
It is similar it is a variety of in emergency circumstances, need the whistle sound that vehicle sounder is sent out that more there is warning sense.Or road is met
Deaf-mute has been arrived, has not heard whistle sound, there must be warning optical flare that can just pass out alarm signal at this time, so vehicle sounding fills
Set the function of also needing to be equipped with warning optical flare.
Invention content
It is an object of the invention to overcome deficiency in the prior art, a kind of sounding dress with multiple warning function is provided
It sets and its control method.
To solve prior art problem, the invention discloses a kind of sound-producing device with multiple warning function, including it is defeated
Enter circuit, microcontroller U1, light emission drive circuit, light-emitting device L1, sounding driving circuit and sound-producing device S1, input circuit connection
Microcontroller U1, microcontroller U1 are separately connected light emission drive circuit and sounding driving circuit, and light emission drive circuit connects light-emitting device,
Sounding driving circuit connects sound-producing device.
Further, the input circuit includes combination button switch J1, and the combination button switch J1 includes 3 conductions
Piece, insulation column, fixing rivet, button, 3 conducting wires for being separately connected corresponding conductive sheet, 3 conductive sheets pass through fixed riveting respectively
Nail is fixed on the same side of insulation column, and 3 conductive sheets are set gradually from top to bottom, 3 conductive sheets energy when without outer force effect
It is enough not in contact with each other, can contact under external force, button is arranged on the top of the top conductive sheet.
Further, the conductive sheet of the top two is made of elastic material.
Further, the lower part of two conductive sheets in the top is provided with protrusion.
Further, the input circuit further includes resistance R1 and resistance R2, a wired earth, and a conducting wire passes through electricity
R1 connection power supplys are hindered, a conducting wire is connected by resistance R2 connection power supplys, resistance R1 with resistance R2, and connect conductive sheet two lead
Line is also respectively connected with microcontroller U1.
Further, the model STC12C2052AD of the microcontroller U1, two conducting wires for connecting conductive sheet connect respectively
The ports P1.0 and the ports P1.1 of microcontroller U1 are connect, microcontroller U1 is also respectively connected with crystal oscillating circuit and reset circuit.
Further, the light emission drive circuit includes resistance R3, resistance R9 and photo-coupler U2, the hair of photo-coupler U2
The anode of optical diode connects power supply, and the cathode of the light emitting diode of photo-coupler U2 passes through resistance R3 connection microcontrollers U1's
The other end of the ports P3.7, one end of the collector connecting resistance R9 of the phototriode of photo-coupler U2, resistance R9 connects power supply,
The collector of phototriode is also connected with light-emitting device L1, the other end ground connection of light-emitting device L1, the photoelectricity three of photo-coupler U2
The emitter of pole pipe is grounded.
Further, the sounding driving circuit includes resistance R4, resistance R5, resistance R6, resistance R8, capacitance C2, capacitance
The in-phase input end of C5 and amplifier U3, amplifier U3 by the ports P3.5 of resistance R6 connection microcontrollers U1, amplifier U3's
Inverting input is grounded by resistance R4, and the output end of amplifier U3 passes through resistance R5 connection resistance R4, the output of amplifier U3
Also by resistance R8 and capacitance C5 ground connection, the output end of amplifier U3 is connect by capacitance C2 with sound-producing device S1 simultaneously at end.
Further, a kind of control method of the sound-producing device with multiple warning function includes：
Step A：Microcontroller U1 carries out I/O port initialization；
Step B：Microcontroller U1 reads the level state for the port P1.0, P1.1 being connect with input circuit；
Step C：Microcontroller U1 judge the ports P1.0 and the ports P1.1 whether meet be high level condition, if meet
D is then entered step, is unsatisfactory for, step E is turned to；
Step D：Light emission drive circuit controls light-emitting device L1 and extinguishes, and sounding driving circuit control sound-producing device S1 is mute,
Turn to step B；
Step E：Microcontroller U1 judges whether the ports P1.0 and the ports P1.1 meet the ports P1.0 for low level and the ends P1.1
Mouth is the condition of high level, F is entered step if met, if being unsatisfactory for entering step G；
Step F：Light emission drive circuit controls light-emitting device L1 flickers, and frequency is more slow, the control of sounding driving circuit
Sound-producing device S1 sounding, and frequency is more slow, turns to step B；
Step G：It is low level condition that microcontroller U1, which judges whether the port P1.0, P1.1 meets two ports, if
Meet, enter step H, if conditions are not met, turning to step B；
Step H：Light emission drive circuit controls light-emitting device L1 flickers, and frequency is more rapid, the control of sounding driving circuit
Sound-producing device S1 sounding, and frequency is more rapid, turns to step B.
The device have the advantages that：The design switched with combination button controls sound-producing device not by pressing weight
With sounding state, avoid in emergency circumstances driver in a great rush among push the wrong button, while can make a sound than conventional truck ring
Whistling more warns sense, at the same time considers that the situation for being likely encountered deaf-mute, the present invention also increase on vehicle sounder
Light-emitting device is added, convenient for reminding the deaf-mute that can't hear sound, and luminous combined with sounding can more play warning effect.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is circuit diagram of the present invention；
Fig. 3 is the structural schematic diagram of combination button switch of the present invention；
Fig. 4 is combination button switch light press status diagram of the present invention；
Fig. 5 is combination button switch weight pressing state schematic diagram of the present invention；
Fig. 6 is the situation figure when present invention continuously sends out certain frequency signal；
Fig. 7 is sound, the optical signal situation figure sent out under combination button switch such as Fig. 4 pressing states of the present invention；
Fig. 8 is sound, the optical signal situation figure sent out under combination button switch such as Fig. 5 pressing states of the present invention；
Fig. 9 is work flow diagram of the present invention.
1：Conductive sheet A；2：Conductive sheet B；3：Conductive sheet C；4：Insulate column；5：Fixing rivet；6：Button；7：Conducting wire A；8：
Conducting wire B；9：Conducting wire C.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, a kind of sound-producing device with multiple warning function of the present invention include input circuit, microcontroller U1,
Light emission drive circuit, light-emitting device L1, sounding driving circuit and sound-producing device S1, input circuit connect microcontroller U1, microcontroller
U1 is separately connected light emission drive circuit and sounding driving circuit, and light emission drive circuit connects light-emitting device, and sounding driving circuit connects
Sending and receiving acoustic device.
As shown in Fig. 2, input circuit includes resistance R1 and resistance R2, conducting wire A7 ground connection, conducting wire B8 is connected by resistance R1
Power supply, conducting wire C are connected by resistance R2 connection power supplys, resistance R1 with resistance R2, and conducting wire B8 and conducting wire C9 are also respectively connected with monolithic
Machine U1.The model STC12C2052AD of microcontroller U1, the ports P1.0 of conducting wire B8 connection microcontrollers U1, conducting wire C9 connection monolithics
The ports P1.1 of machine U1, microcontroller U1 are also respectively connected with crystal oscillating circuit and reset circuit.Light emission drive circuit includes resistance R3, electricity
R9 and photo-coupler U2 is hindered, the anode of the light emitting diode of photo-coupler U2 connects power supply, the light emitting diode of photo-coupler U2
Cathode pass through the ports P3.7 of resistance R3 connection microcontrollers U1, the collector connecting resistance R9 of the phototriode of photo-coupler U2
One end, the other end of resistance R9 connects power supply, and the collector of phototriode is also connected with light-emitting device L1, light-emitting device L1's
The other end is grounded, the emitter ground connection of the phototriode of photo-coupler U2.Sounding driving circuit include resistance R4, resistance R5,
The in-phase input end of resistance R6, resistance R8, capacitance C2, capacitance C5 and amplifier U3, amplifier U3 pass through resistance R6 connection monolithics
The inverting input of the ports P3.5 of machine U1, amplifier U3 is grounded by resistance R4, and the output end of amplifier U3 passes through resistance R5
Resistance R4 is connected, also by resistance R8 and capacitance C5 ground connection, the output end of amplifier U3 passes through the output end of amplifier U3 simultaneously
Capacitance C2 is connect with sound-producing device S1.
Combination button switch J1 as shown in Figure 3 includes conductive sheet A1, conductive sheet B2, conductive sheet C3, insulation column 4, fixes
Rivet 5, button 6, conducting wire A7, conducting wire B8 and conducting wire C9, conductive sheet A1, conductive sheet B2 and conductive sheet C3 pass through fixing rivet respectively
5 are fixed on the same side of insulation column 4, and conductive sheet A1, conductive sheet B2 and conductive sheet C3 are set gradually from top to bottom, conductive sheet
It is not in contact with each other between A1, conductive sheet B2 and conductive sheet C3, button 6 is arranged in the top of conductive sheet A1, conductive sheet A1 connecting wires
A7, conductive sheet B2 connecting wire B8, conductive sheet C3 connecting wires C9.Conductive sheet A1 and conductive sheet B2 are made of elastic material,
The lower part of conductive sheet A1 and conductive sheet B2 are provided with protrusion, there is in various degree three conductive sheets when such design facilitates pressing
Contact.When give the button a slight press 6 when, state as shown in Figure 4 is presented in combination button switch J1, when touch the button again 6 when, combination button
State as shown in Figure 5 is presented in switch J1.
As shown in fig. 6, (setting signal at this time when the I/O port of microcontroller U1 sends out the fixed square-wave signal of continuous frequency
Frequency is that f), after the amplification of sounding driving circuit, sound-producing device S1 will send out continuous " ticking " sound.
As shown in fig. 7, if single-chip I/O mouth is still that f sends out continuous square-wave signal with frequency, and when continuing t1
Between after section, then send out low level signal, then persistently after the t2 periods, then with frequency be that f sends out continuous square-wave signal, period
Property progress, this signal by sounding driving circuit amplification after, sound-producing device S1, which will be sent out, " to tick --- --- ticking --- ---
Tick --- --- ticking --- --- " sound (horizontal line represents mute).I.e.：It ticks t1 seconds, it is t2 seconds mute, then tick t1 seconds, t2 seconds mute, the period is followed
Ring carries out.Light-emitting device L1 will also send out " it is bright --- --- it is bright --- --- it is bright --- --- bright --- --- " (horizontal line represents lamp and goes out),
I.e.：It is t1 seconds bright, extinguish t2 seconds, then t1 seconds bright, extinguish t2 seconds, loop cycle carries out.Here t1 takes 0.1~0.5 second, and preferred value is
0.2 second, t2 took 0.3~1 second, and preferred value is 0.4 second, and signal frequency f takes 300Hz~3KHz, preferred value 1.5KHz.Due to t2
Time is longer, therefore voice signal, optical signal that sound-producing device S1 and light-emitting device L1 are sent out are common alarm signal, are not had
Rapid sense, is suitable for common occasion.
As shown in figure 8, if single-chip I/O mouth is still that f sends out continuous square-wave signal with frequency, and when continuing t1
Between after section, then send out low level signal, then persistently after the t3 periods, then with frequency be that f sends out continuous square-wave signal, period
Property progress, for this signal after the amplification of sounding driving circuit, sound-producing device S1 will send out " tick -- tick -- tick -- ticking -- " sound
(horizontal line represents mute).I.e.：It ticks t1 seconds, it is t3 seconds mute, then tick t1 seconds, t3 seconds mute, loop cycle carries out.Light-emitting device L1
Will send out " it is bright -- bright -- it is bright -- bright -- " (horizontal line represents lamp and goes out), i.e.,：It is t1 seconds bright, extinguish t3 seconds, then t1 seconds bright, extinguishes t3
Second, loop cycle carries out.Here t1 takes 0.1~0.5 second, and preferred value is 0.2 second, and t3 takes 0.1~0.5 second, preferred value 0.2
Second, signal frequency f takes 300Hz~3KHz, preferred value 1.5KHz.Since the t3 times are shorter, sound-producing device S1 and shine
Voice signal that device L1 is sent out, optical signal are that the rapid alarming sound that ticks is suitable for the field of particularly urgent with rapid sense
It closes.
As shown in figure 9, after microcontroller U1 is powered, microcontroller U1 is initialized first, including is initialized to I/O port：It will
The port P1.0, P1.1 is set to input state, is convenient for reading the state of combination button switch in this way.The port P3.7, P3.5 is set to
Then sound-producing device S1 is set to mute state, i.e., by output state：The ports P3.5 export low level, and by light-emitting device L1
It is set to OFF state, i.e.,：The ports P3.7 export low level.
Then microcontroller U1 starts to read P1.0, P1.1 mouthfuls of level state, if the port P1.0, P1.1 is high electricity
It is flat, then it is assumed that conductive sheet A1, B2 are not pressed in combination button switch J1, at this time that control sound-producing device S1 is mute, shine
Device L1 extinguishes, i.e.,：The ports P3.5 export low level, P3.7 mouthfuls of output low levels.It then proceedes to read the port P1.0, P1.1
Level state.If it is this condition of high level to be unsatisfactory for the port P1.0, P1.1, continue to determine whether to meet the ports P1.0
It is this condition of high level for low level, the ports P1.1.
If the ports P1.0 are low level, the ports P1.1 are high level, then it is assumed that conductive sheet A1 quilts in combination button switch
It presses and contacts but do not contacted with conductive sheet C3 with conductive sheet B2, conductive sheet B2 receives low level, and conductive sheet C3 is not received
To low level.I.e.：Conductive sheet B2 is low level, and conductive sheet C3 is high level.Then light-emitting device L1, sound-producing device S1 press Fig. 7 moulds
Formula works, i.e.,：P3.5, P3.7 mouthfuls of equal output timings are waveform signal shown in Fig. 7, then proceed to read the port P1.0, P1.1
Level state.If be unsatisfactory for, the ports P1.0 are low level, the ports P1.1 are this condition of high level, are continued to determine whether
It is this condition of low level to meet P1.0, P1.1 mouthfuls.
If the port P1.0, P1.1 is low level, then it is assumed that conductive sheet A1 is led by by earth in combination button switch
Electric piece A1, B2, C3 are touched together, i.e.,：Conductive sheet B2, C3 receive low level.Therefore conductive sheet B2, C3 are low electricity
It is flat.Then control sound-producing device, sound-producing device by the work of Fig. 8 patterns, i.e.,：The equal output timing in the port P3.5, P3.7 is shown in Fig. 8
Waveform signal then proceedes to the level state for reading the port P1.0, P1.1.If it is low electricity to be unsatisfactory for the port P1.0, P1.1
This condition is equalled, then continues to read P1.0, P1.1 mouthfuls of level state.So far entire cycle criterion executes operation completion, monolithic
Machine U1 will constantly execute the above cycle criterion operation.Because conductive sheet A1 must could be made to lead with other two by lower button 6
Electric piece contact, so the case where conductive sheet B2 and C3 is individually contacted both is not present, also there is no conductive sheet A1 individually to be contacted with C3
The case where, so being high level there is no the ports P1.0 and the ports P1.1 are low level situation.
Therefore：When the button 6 in combination button switch J1 is not pressed, conductive sheet B2 and conductive sheet C3 are by resistance
R1, R2 are pulled to high level, and light-emitting device L1 extinguishings at this time, sound-producing device S1 are mute；When the button for pressing combination button switch J1
6, when conductive sheet A1 being made to be pressed and contact but do not contacted with conductive sheet C3 with conductive sheet B2, conductive sheet B2 current potentials become low electricity
It is flat, and conductive sheet B2 and conductive sheet C3 not in contact with, so conductive sheet C3 is still high level at this time, microcontroller U1 read P1.0,
The level state of the ports P1.1, the ports P1.0 are low level at this time, the ports P1.1 are high level, microcontroller U1 P3.5,
The slow square-wave signal of the equal output timing in the ports P3.7, at this time sound-producing device S1 send out the slow sound of rhythm, simultaneously shine
Device L1 flickers are gentle；When pressing the button 6 of combination button switch J1, conductive sheet A1 be pressed and with conductive sheet B2, C3
It contacts, the current potential of conductive sheet B2, C3 all becomes low level at this time, and microcontroller U1 reads the level of the port P1.0, P1.1
State, the port P1.0, P1.1 are low level, in the rectangular wave that the equal output timing in the port P3.5, P3.7 of microcontroller U1 is rapid
Signal, sound-producing device S1 sends out the rapid sound of rhythm at this time, while light-emitting device L1 flickers are rapid.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of sound-producing device with multiple warning function, it is characterised in that：Including input circuit, microcontroller U1, shines and drive
Dynamic circuit, light-emitting device L1, sounding driving circuit and sound-producing device S1, input circuit connect microcontroller U1, microcontroller U1 difference
Light emission drive circuit and sounding driving circuit are connected, light emission drive circuit connects light-emitting device L1, sounding driving circuit connection hair
Acoustic device S1.
2. a kind of sound-producing device with multiple warning function as described in claim 1, it is characterised in that：The input circuit
Including combination button switch J1, the combination button switch J1 include conductive sheet A (1), conductive sheet B (2), conductive sheet C (3), absolutely
Edge column (4), fixing rivet (5), button (6), conducting wire A (7), conducting wire B (8) and conducting wire C (9), conductive sheet A (1), conductive sheet B
(2) and conductive sheet C (3) respectively by fixing rivet (5) be fixed on insulation column (4) the same side, conductive sheet A (1), conductive sheet
B (2) and conductive sheet C (3) are set gradually from top to bottom, and conductive sheet A (1), conductive sheet B (2) and conductive sheet C (3) are without outer masterpiece
Used time can be not in contact with each other, and can contact under external force, and button (6) is arranged in the top of (1) conductive sheet A, conductive sheet A
(1) (7) connecting wire A, conductive sheet B (2) connecting wire B (8), conductive sheet C (3) connecting wire C (9).
3. a kind of sound-producing device with multiple warning function as claimed in claim 2, it is characterised in that：The conductive sheet A
(1) it is made of elastic material with conductive sheet B (2).
4. a kind of sound-producing device with multiple warning function as claimed in claim 2, it is characterised in that：The conductive sheet A
(1) and the lower part of conductive sheet B (2) is provided with protrusion.
5. a kind of sound-producing device with multiple warning function as described in claim 3 or 4, it is characterised in that：The input
Circuit further includes resistance R1 and resistance R2, and conducting wire A (7) is grounded, and conducting wire B (8) is passed through by resistance R1 connection power supplys, conducting wire C (9)
Resistance R2 connection power supplys, resistance R1 are connected with resistance R2, and conducting wire B (8) and conducting wire C (9) are also respectively connected with microcontroller U1.
6. a kind of sound-producing device with multiple warning function as described in claim 1, it is characterised in that：The microcontroller U1
Model STC12C2052AD, microcontroller U1 is also respectively connected with crystal oscillating circuit and reset circuit.
7. a kind of sound-producing device with multiple warning function as described in claim 1, it is characterised in that：The luminous driving
Circuit includes resistance R3, resistance R9 and photo-coupler U2, and the anode of the light emitting diode of photo-coupler U2 connects power supply, optical coupling
The cathode of the light emitting diode of device U2 passes through the ports P3.7 of resistance R3 connection microcontrollers U1, the phototriode of photo-coupler U2
Collector connecting resistance R9 one end, the other end of resistance R9 connects power supply, and the collector of phototriode is also connected with luminous dress
Set L1, the other end ground connection of light-emitting device L1, the emitter ground connection of the phototriode of photo-coupler U2.
8. a kind of sound-producing device with multiple warning function as described in claim 1, it is characterised in that：The sounding driving
Circuit includes resistance R4, resistance R5, resistance R6, resistance R8, capacitance C2, capacitance C5 and amplifier U3, and amplifier U3's is same mutually defeated
Enter P3.5 port of the end by resistance R6 connection microcontrollers U1, the inverting input of amplifier U3 is grounded by resistance R4, is amplified
The output end of device U3, also by resistance R8 and capacitance C5 ground connection, is put by the output end of resistance R5 connections resistance R4, amplifier U3
The output end of big device U3 is connect by capacitance C2 with sound-producing device S1 simultaneously.
9. a kind of control method of the sound-producing device with multiple warning function, it is characterised in that the method includes：
Step A：Microcontroller U1 carries out I/O port initialization；
Step B：Microcontroller U1 reads the level state for the port P1.0, P1.1 being connect with input circuit；
Step C：Microcontroller U1 judge the ports P1.0 and the ports P1.1 whether meet be high level condition, if meet if into
Enter step D, be unsatisfactory for, turns to step E；
Step D：Light emission drive circuit controls light-emitting device L1 and extinguishes, and sounding driving circuit control sound-producing device S1 is mute, turns to
Step B；
Step E：Microcontroller U1 judges whether the ports P1.0 and the ports P1.1 meet that the ports P1.0 are low level and the ports P1.1 are
The condition of high level enters step F if meeting, G is entered step if being unsatisfactory for；
Step F：Light emission drive circuit controls light-emitting device L1 flickers, and more slowly, sounding driving circuit controls sound-producing device
S1 sounding, and frequency is more slow, turns to step B；
Step G：It is low level condition that microcontroller U1, which judges whether the port P1.0, P1.1 meets two ports, if it is satisfied,
H is entered step, if conditions are not met, turning to step B；
Step H：Light emission drive circuit controls light-emitting device L1 flickers, and frequency is more rapid, and sounding driving circuit controls sounding
Device S1 sounding, and frequency is more rapid, turns to step B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194655.5A CN108437889B (en) | 2018-03-09 | 2018-03-09 | Sounding device with multiple warning functions and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194655.5A CN108437889B (en) | 2018-03-09 | 2018-03-09 | Sounding device with multiple warning functions and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN108437889A true CN108437889A (en) | 2018-08-24 |
| CN108437889B CN108437889B (en) | 2023-07-28 |
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| CN201810194655.5A Active CN108437889B (en) | 2018-03-09 | 2018-03-09 | Sounding device with multiple warning functions and control method thereof |
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