CN201736891U - Intelligent automobile whistling device - Google Patents
Intelligent automobile whistling device Download PDFInfo
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- CN201736891U CN201736891U CN2010202212331U CN201020221233U CN201736891U CN 201736891 U CN201736891 U CN 201736891U CN 2010202212331 U CN2010202212331 U CN 2010202212331U CN 201020221233 U CN201020221233 U CN 201020221233U CN 201736891 U CN201736891 U CN 201736891U
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Abstract
The utility model discloses an intelligent automobile whistling device, which comprises a horn, a main switch for controlling the horn to give out sound and a controller, wherein the controller is electrically connected with the main switch; one input end of the controller is electrically connected with the output end of a vehicle speed sensor of the automobile; and the output end of the controller drives the horn to work through a digital-to-analog amplifying circuit. The digital-to to-analog amplifying circuit comprises a digital-to-analog converting chip which is corresponding and electrically connected with the output end of the controller; an analog signal output end of the digital-to-analog converting chip is electrically connected with an amplifier; and the output end of the amplifier and the horn form a power supply circuit. The intelligent automobile whistling device with the structure has reasonable structure, is simple in operation, can send out the sound with different strengths according to different automobile speeds, is suitable for various automobiles or electric motor vehicles, is particularly suitable for automobiles with wider automobile speed range and is conductive to improving the quality and the safety of the automobile during driving.
Description
Technical field
The utility model relates to a kind of intelligent vehicle device of blowing a whistle.
Background technology
Automobile is blown a whistle and is mounted in the sound device of signal of the crowd towards periphery of being used on the automobile, and the main effect that automobile is blown a whistle is the warning reminding effect, according to the principle of work difference, can be divided into electronic blowing a whistle and pneumatic blowing a whistle.No matter be electronic blowing a whistle or pneumatic blowing a whistle, traditional automobile is blown a whistle and is all comprised the main switch of loudspeaker and control sound horn, by pressing main switch, trigger corresponding mechanism and drive loudspeaker and sound, so just played to others the give a warning effect of prompting sound.Orthodox car is blown a whistle simple in structure, easy to operate, use very generally, but the weak point that orthodox car is blown a whistle is: after pressing main switch, loudspeaker can only send a kind of sound of intensity, can't send the sound of varying strength according to the residing environment of automobile, therefore, this sometimes sound is excessive, and others is impacted, and this sometimes sound is too small, is not enough to cause others' attention; For example, when the speed of a motor vehicle is too fast, automobile is bigger to the danger of surrounding, need send stronger caution sound, and when the speed of a motor vehicle was slow, automobile was dangerous less to surrounding, send a less caution sound and get final product this moment, the orthodox car sound of blowing a whistle is single, uses very dullly, can't satisfy people's different demands.
The utility model content
The technical problems to be solved in the utility model is to provide a kind of rational in infrastructure, simple to operate at above-mentioned deficiency, and can be according to the intelligent vehicle that the different speed of a motor vehicle the are sent varying strength sound device of blowing a whistle.
For solving the problems of the technologies described above, this intelligent vehicle blow a whistle device comprise loudspeaker and control sound horn main switch, its constructional feature is: also comprise the controller that is electrically connected with main switch, an input end of controller is electrically connected with the car speed sensor mouth of automobile, and the mouth of controller drives loudspeaker work by the digital-to-analogue power amplifier.
The intelligent vehicle of this structure device of blowing a whistle is realized sending varying strength sound according to the different speed of a motor vehicle by the transformation structure that tests the speed.
The transformation that tests the speed structure mainly comprises a controller, and an input end of controller is electrically connected with the mouth of car speed sensor.When running car, automobile sensor will be given controller the speed of a motor vehicle electric signal transmission of automobile, and controller converts speed of a motor vehicle electric signal to the control signal of representing speed of a motor vehicle height through behind the data handing.Automobile sensor is real-time transmitted to controller with speed of a motor vehicle electric signal, and controller is converted into control signal with this speed of a motor vehicle electric signal in real time.Another input end of controller is electrically connected with main switch, and when main switch is pressed, controller will receive an energizing signal, and the control signal after will transforming this moment passes to the digital-to-analogue power amplifier by mouth.The main effect of digital-to-analogue power amplifier is to convert described control signal to analog signal, and this analog signal carried out power gain, at last, analog quantity control signal after the digital-to-analogue power amplifier will amplify sends to the loudspeaker input end, and loudspeaker have just sent and the corresponding sound of car speed, speed of a motor vehicle height like this, loud, the speed of a motor vehicle is low, and sound is little, and is very easy to use.
As a kind of implementation, described digital-to-analogue power amplifier comprises the analog-digital chip of corresponding electrical connection with controller output end, and the analog signal output of analog-digital chip is electrically connected with amplifier, and the mouth of amplifier and loudspeaker constitute current supply circuit.
This digital-to-analogue power amplifier mainly comprises D/A converting circuit and power amplifier, and D/A converting circuit is realized that by analog-digital chip power amplifier is realized by amplifier, and is simple in structure, easily manufactured.
As improvement, be connected with aerotron between the loudspeaker input end of the mouth of amplifier, the base stage of aerotron is electrically connected with another mouth of controller.
Between amplifier and loudspeaker aerotron is set, and the base stage of aerotron is electrically connected with another mouth of controller, like this, controller can direct control digital-to-analogue power amplifier drives the path of loudspeaker work, makes the loudspeaker response more timely, and intensity of sound is more accurate.
As further improvement, other three input ends of controller correspondence respectively are electrically connected with bass switch, middle pitch switch and high pitch switch.
Input end at controller is provided with bass switch, middle pitch switch and high pitch switch, can make controller send basic, normal, high three different control signals to the digital-to-analogue power amplifier, like this, loudspeaker will correspondence send bass, middle pitch and high pitch, corresponding respectively different occasion is used, and is more convenient to use.
In sum, adopt the intelligent vehicle of this structure device of blowing a whistle, rational in infrastructure, simple to operate, and can send varying strength sound according to the different speed of a motor vehicle, be adapted at using on various automobiles or the battery-driven car, be particluarly suitable for using on the bigger automobile of vehicle speed range, help to improve driving quality and safety.
Description of drawings
In conjunction with the accompanying drawings the utility model is described in further details:
Fig. 1 is a structural representation of the present utility model.
Among the figure: U1 is a controller, and U2 is an analog-digital chip, and U3 is an amplifier, and Q is an aerotron, and S is loudspeaker, GO is a photoelectrical coupler, and SR is a car speed sensor, and JZ is a crystal oscillator, and C1-C3 is an electric capacity, and R1-R8 is a resistance, S1 is a main switch, and S2 is the bass switch, and S3 is the middle pitch switch, and S4 is the high pitch switch.
The specific embodiment
As shown in Figure 1, this intelligent vehicle device of blowing a whistle comprises the car speed sensor SR that can detect the automotive wheel rotating speed, in the present embodiment, car speed sensor SR adopts photoelectric encoder, like this, and when automotive wheel rotates, automotive wheel whenever rotates a circle, the mouth of photoelectric encoder is just exported an impulse singla, and the speed of a motor vehicle is fast more, and the pulse signal frequency of photoelectric encoder mouth output is high more.The photoelectric encoder mouth is electrically connected with the T0 pin of controller U1 by photoelectrical coupler GO, and the main effect of photoelectrical coupler GO is that the T0 pin to the mouth of photoelectric encoder and controller U1 carries out the photoelectricity isolation, prevents interfering with each other of electric signal.The input end of photoelectrical coupler GO and mouth are electrically connected with the 12V dc power anode by pull-up resistor R3 and R2 respectively.The RESET pin of controller U1 is electrically connected with direct supply by the electrify restoration circuit that is made of capacitor C 3 and resistance R 1, and controller U1 automatically resets when powering on, and it is more reliable to work.The X1 of controller U1, X2 pin are electrically connected with the direct current (DC) seedbed by the oscillating circuit that is made of crystal oscillator JZ and capacitor C 1, C2, for controller U1 provides frequency of operation accurately.After controller U 1 receives the speed pulse signal that car speed sensor SR sends, to carry out data handing to this speed pulse signal, be translated into and corresponding 8 control datas of speed pulse signal frequency, and be transferred to the D0-D7 pin of analog-digital chip U2 by the P00-P07 pin correspondence of controller U1.After analog-digital chip U2 receives control signal, be translated into and control signal size corresponding simulating current signal, and be transferred to two input ends of amplifier U3 by IOUT1, IOUT2 pin.After amplifier U3 receives analog current signal, this signal is carried out power gain and change into voltage signal also by the output of the 7th pin.The mouth of amplifier U3 is electrically connected with the collecting electrode of aerotron Q, aerotron Q adopts the NPN pipe, the emitter of aerotron Q is electrically connected with the direct current (DC) seedbed through resistance R 8, the emitter of aerotron Q also is electrically connected with the input end of loudspeaker S, the base stage of aerotron Q is electrically connected with the RXD pin of controller U1, like this, and when the RXD of controller U1 pin output high level, aerotron Q conducting, the voltage signal of amplifier U3 output just drives loudspeaker S and sounds.The P14 pin of controller U1 is electrically connected with main switch S1 by pull-up resistor R4, when main switch S1 is closed, the P14 pin of controller U1 will obtain a low level, and at this moment, controller U1 will control the sounding electric pathway that RXD pin output high level is opened loudspeaker S, loudspeaker S will be according to the control signal sounding of rate conversion at this moment, sound is corresponding with car speed, and speed of a motor vehicle height is loud, the speed of a motor vehicle is low, and sound is little.The P15 of controller U1, P16, P17 pin are electrically connected with bass switch S 2, middle pitch switch S 3 and high pitch switch S 4 by pull-up resistor R5, R6, R7 respectively.When pressing bass switch S 2 respectively, when middle pitch switch S 3 and high pitch switch S 4, controller U1 will send and bass switch S 2 to the digital-to-analogue power amplifier, middle pitch switch S 3 and high pitch switch S 4 cooresponding low speed control signals, middling speed control signal and high-speed control signal, like this, the just cooresponding low-voltage analog signal that the digital-to-analogue power amplifier sends to loudspeaker S, middle pressing mold analog signal and high pressure simulation signal, and then, loudspeaker S correspondence is sent low-intensity sound, middle intensity sound and high-intensity sound, which switch people can press selectively according to the actual needs of oneself, use more convenient, hommization more.
In the present embodiment, the AT89C51 chip that controller U1 adopts atmel corp to produce, that analog-digital chip U2 adopts is DAC0832, what amplifier U3 adopted is the UA741 chip, the structure and the principle of work of the above chip belong to known technology, no longer carefully state at this.
Claims (4)
1. intelligent vehicle device of blowing a whistle, the main switch (S1) that comprises loudspeaker (S) and control loudspeaker (S) sounding, it is characterized in that: also comprise the controller (U1) that is electrically connected with main switch (S1), an input end of controller (U1) is electrically connected with car speed sensor (SR) mouth of automobile, and the mouth of controller (U1) drives loudspeaker (S) work by the digital-to-analogue power amplifier.
2. the intelligent vehicle as claimed in claim 1 device of blowing a whistle, it is characterized in that: described digital-to-analogue power amplifier comprises the analog-digital chip (U2) with the corresponding electrical connection of controller (U1) mouth, the analog signal output of analog-digital chip (U2) is electrically connected with amplifier (U3), and the mouth of amplifier (U3) and loudspeaker (S) constitute current supply circuit.
3. the intelligent vehicle as claimed in claim 2 device of blowing a whistle, it is characterized in that: be connected with aerotron (Q) between loudspeaker (S) input end of the mouth of amplifier (U3), the base stage of aerotron (Q) is electrically connected with another mouth of controller (U1).
4. as claim 1, the 2 or 3 described intelligent vehicles device of blowing a whistle, it is characterized in that: other three input ends of controller (U1) correspondence respectively are electrically connected with bass switch (S2), middle pitch switch (S3) and high pitch switch (S4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202212331U CN201736891U (en) | 2010-05-31 | 2010-05-31 | Intelligent automobile whistling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202212331U CN201736891U (en) | 2010-05-31 | 2010-05-31 | Intelligent automobile whistling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201736891U true CN201736891U (en) | 2011-02-09 |
Family
ID=43552173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202212331U Expired - Fee Related CN201736891U (en) | 2010-05-31 | 2010-05-31 | Intelligent automobile whistling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201736891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857167A (en) * | 2016-03-30 | 2016-08-17 | 滨州职业学院 | Pulse width modulation (PWM) control device for automotive electric whistle |
-
2010
- 2010-05-31 CN CN2010202212331U patent/CN201736891U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105857167A (en) * | 2016-03-30 | 2016-08-17 | 滨州职业学院 | Pulse width modulation (PWM) control device for automotive electric whistle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130531 |