CN201320999Y

CN201320999Y - Intelligent alarm with voice horn

Info

Publication number: CN201320999Y
Application number: CNU2008202169137U
Authority: CN
Inventors: 程相权; 林枫
Original assignee: HUAIAN GOLDEN HENG TAI TECHONOLY CO Ltd
Current assignee: HUAIAN GOLDEN HENG TAI TECHONOLY CO Ltd
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-10-07
Anticipated expiration: 2018-12-11

Abstract

The utility model discloses an intelligent alarm with a voice horn. The resonant cavity of the intelligent alarm is formed by an upper shell and a lower shell. A circuit board is installed in the resonant cavity. The output line of the circuit board is connected with correlated devices on an electric car. The correlated devices include the steering switch, the horn, the electric door lock, the controller and the motor on the car. The circuit board includes an electric circuit formed by a voice chip, a single chip microcomputer and the horn which are connected together. The utility model has the advantages that the horn gives a voice prompt of ''the car has been protected'' when the electric car is protected, the user is correctly reminded that the alarm state of the electric car has been activated, the horn gives a voice prompt of ''Jinhengtai reminds you to care the safety'' when the protection of electric car is cancelled and the electric car is started, the starting prompt is more considerate and humanized than the original tedious starting prompt, the voice prompt of ''steering, please take care'' is added to the steering prompt and the alarm can provide drivers with correct and safe prompts.

Description

Voice loudspeaker intelligent alarm

Technical field

The utility model relates to annunciator, is specifically related to voice loudspeaker intelligent alarm.

Background technology

Traditional annunciator produces the sound of high-decibel value by buzzer phone, the sound dullness, and under the state of working long hours, capacity can be decayed, and sound can diminish, and can not guarantee the long-time stable work of annunciator.

Summary of the invention

The purpose of this utility model is: a kind of voice loudspeaker intelligent alarm is provided, when battery-driven car is set up defences, loudspeaker can send the voice suggestion of " this car is set up defences ", the alarm condition of accurate this battery-driven car of prompting user starts, when the battery-driven car cancellation is set up defences and is started, loudspeaker can send the verbal cue of " Jin Hengtai reminds you to please note safety ", more show consideration for than original plodding startup prompting sound, more humane, the voice that more added " turning please notes " on the turning prompt tone, this annunciator well provide correct for the driving people, the prompting of safety.

Technical solution of the present utility model is: this annunciator is formed resonant cavity by upper shell and lower house, wiring board is installed in resonant cavity, the output line of the communication circuit board of motor connects the related device on the battery-driven car, and described related device is pole changer, loudspeaker, electric door lock, controller and the motor on the battery-driven car; The electric loop that comprises that speech chip, micro controller system, loudspeaker connect to form is arranged on the described wiring board.

In the speech-sound intelligent annunciator of the present utility model, circuit connects with mode of operation as follows:

The 5V power supply: the positive pole of battery connects the positive pole of diode D1 by white line, the negative pole of D1 connects dropping resistor R24, R24 connects the input end of 78L05, the input end of 78L05 connects capacitor C 3 to ground, the GND end ground connection of 78L05, GND mouth output 5V, the node that 5V forms connects capacitor C 10 and ground connection, the 78L05 mouth connects the bypass of being made up of chemical capacitor C8, the two ends parallel coupled capacitor C 11 of C8.

The LM386 audio frequency amplifies: the 6th pin of amplifier LM386 connects 12V voltage, the 4th pin ground connection, the 7th pin connects an end of capacitor C 5, C5 other end ground connection, the 8th pin is connected with the negative pole of chemical capacitor C4, the positive pole of C4 connects an end of resistance R 25, the 1st pin of another termination LM386 of R25, LM386 the 5th pin connects the positive pole of chemical capacitor C7, the negative pole of C7 connects an end of loudspeaker, the other end ground connection of loudspeaker, C7 and the 5th pin connecting joint connect capacitor C 6, resistance R 26, the other end ground connection of resistance R 26, the 2nd pin ground connection of LM386, the 3rd pin of LM386 is by resistance R 20 ground connection, and the 3rd pin of LM386 is by capacitor C 13, C14, resistance R 23 ground connection, C13, the series connection node that C14 produces connects the 7th pin of speech chip.

Reduction voltage circuit: the square-wave signal of exporting 45K-50K from the 14th pin of MCU, drive aerotron Q2 through resistance R 6, Q2 drives aerotron Q1 through resistance R 2, the C utmost point series inductance L1 of Q1, the E level connecting resistance R15 of Q1, R15 connecting resistance R4, the B utmost point of another termination of R4 Q1, the connecting joint power connection 48V of R15 and R4, when voltage during greater than 12V, can be by 12V stabilivolt D3, resistance R 9 drives aerotron Q3, the B utmost point connecting resistance R5 of Q3, the E utmost point ground connection of the end of R5 and Q3, after Q3 is switched on, impel Q2, Q1 closes, and the C utmost point of Q1 connects diode D4 negative pole and ground connection, and the 6th pin of LM386 connects chemical capacitor C2, capacitor C 3.

Overvoltage protection and short-circuit detecting: when the voltage of LM386 the 6th pin is higher than 15V; make aerotron Q4 conducting by 15V stabilivolt D4, resistance R 10, R11; it is low level that the result of conducting can make the 13rd pin of MCU; when MCU captures this signal; think that reduction voltage circuit is out of control; thereby turn-off Q2; Q2 is by Q1 is ended; thereby protected the LM386 chip; when the voltage of LM386 the 6th pin is lower than 1V; by resistance R 16, R14, make the 13rd pin of MCU show as low level, the process of its MCU action is identical with overvoltage protection with the result.

The AP8921A speech chip: 1,2,3,5,9 pin skies of speech chip connect, the 4th pin ground connection, the 6th pin connects chemical capacitor C11, the negative earth of C11, the 7th pin connects the 3rd pin of LM386 by C13, the 5V power supply links to each other with the 8th pin of speech chip by resistance R 21, the 10th pin links to each other with the 6th pin of MCU, the 11st pin links to each other with the 5th pin of MCU, and the 12nd pin connects the 5V power supply, and the 13rd pin connects the 3rd pin of MCU, the 14th pin connects the 2nd pin of MCU, the 15th pin connects the 1st pin of MCU, and the 16th pin connects capacitor C 3, C3 one termination 5V.

The 1st, 2,3,5,6 pin of MCU micro controller system: MCU are connected with the 15th, 14,13,11,10 pin of speech chip respectively, the 4th pin meets 5V, the 7th pin series resistance R18, another termination 5V of R18, the 8th, 9,10,12 pin of MCU link to each other with the external world by resistance R 12, R10, R8, R11 respectively.

The utlity model has following advantage: 1, these voice loudspeaker have overvoltage protection, and short-circuit protection is avoided damage in use.2, these voice loudspeaker can switch by the loudspeaker knob has voice and does not have voice status, has accomplished hommization truly.3, this annunciator with horn punch as sampled signal, if there is signal to be gathered, handle by micro controller system, judge alarm work is in which kind of state, voice status is arranged or do not have voice status, when sending the signal of request voice sound horn, the voice loudspeaker can carry out Intelligent Measurement, test just often can be agreed request, at this moment can play corresponding paragraph according to the two scale notation code value.

Description of drawings

Fig. 1 is the utility model schematic circuit diagram.

The specific embodiment

This annunciator is formed resonant cavity by upper shell and lower house, and wiring board is installed in resonant cavity, and the output line of wiring board connects the related device on the battery-driven car, and described related device is pole changer, loudspeaker, electric door lock, controller and the motor on the battery-driven car; The electric loop that comprises that speech chip, micro controller system, loudspeaker connect to form is arranged on the described wiring board.

In the speech-sound intelligent annunciator of the present utility model, circuit connect with mode of operation as shown in Figure 1:

Claims

1. voice loudspeaker intelligent alarm, this annunciator is formed resonant cavity by upper shell and lower house, wiring board is installed in resonant cavity, and the output line of wiring board connects the related device on the battery-driven car, and described related device is pole changer, loudspeaker, electric door lock, controller and the motor on the battery-driven car; The electric loop that comprises that speech chip, micro controller system, loudspeaker connect to form is arranged on the described wiring board, and it is as follows to it is characterized in that circuit connects:

The 5V power supply: the positive pole of battery connects the positive pole of diode D1 by white line, the negative pole of D1 connects dropping resistor R24, R24 connects the input end of 78L05, the input end of 78L05 connects capacitor C 3 to ground, the GND end ground connection of 78L05, GND mouth output 5V, the node that 5V forms connects capacitor C 10 and ground connection, the 78L05 mouth connects the bypass of being made up of chemical capacitor C8, the two ends parallel coupled capacitor C 11 of its C8;

The LM386 audio frequency amplifies: the 6th pin of amplifier LM386 connects 12V voltage, the 4th pin ground connection, the 7th pin connects an end of capacitor C 5, C5 other end ground connection, the 8th pin is connected with the negative pole of chemical capacitor C4, the positive pole of C4 connects an end of resistance R 25, the 1st pin of another termination LM386 of R25, the 5th pin connects the positive pole of chemical capacitor C7, the negative pole of C7 connects an end of loudspeaker, the other end ground connection of loudspeaker, C7 and the 5th pin connecting joint connect capacitor C 6, resistance R 26, the other end ground connection of resistance R 26, the 2nd pin ground connection of LM386, the 3rd pin of LM386 is by resistance R 20 ground connection, and the 3rd pin of LM386 is by capacitor C 13, C14, resistance R 23 ground connection, C13, the series connection node that C14 produces connects the 7th pin of speech chip;

Reduction voltage circuit: the square-wave signal of exporting 45K-50K from the 14th pin of MCU, drive aerotron Q2 through resistance R 6, Q2 drives aerotron Q1 through resistance R 2, the C utmost point series inductance L1 of Q1, the E level connecting resistance R15 of Q1, R15 connecting resistance R4, the B utmost point of another termination of R4 Q1, the connecting joint power connection 48V of R15 and R4, when voltage during greater than 12V, can be by 12V stabilivolt D3, resistance R 9 drives aerotron Q3, the B utmost point connecting resistance R5 of Q3, the E utmost point ground connection of the end of R5 and Q3, after Q3 is switched on, impel Q2, Q1 closes, and the C utmost point of Q1 connects diode D4 negative pole and ground connection, and the 6th pin of LM386 connects chemical capacitor C2, capacitor C 3;

Overvoltage protection and short-circuit detecting: when the voltage of LM386 the 6th pin is higher than 15V, make aerotron Q4 conducting by 15V stabilivolt D4, resistance R 10, R11, it is low level that the result of conducting can make the 13rd pin of MCU, when MCU captures this signal, think that reduction voltage circuit is out of control, thereby turn-off Q2, Q2 is by Q1 is ended, thereby protected the LM386 chip, when the voltage of LM386 the 6th pin is lower than 1V, by resistance R 16, R14, make the 13rd pin of MCU show as low level, the process of its MCU action is identical with overvoltage protection with the result;

The AP8921A speech chip: 1,2,3,5,9 pin skies of chip connect, the 4th pin ground connection, and the 6th pin connects chemical capacitor C11, the negative earth of C11, the 7th pin are by the 3rd pin of C13 connection LM386, and the 5V power supply connects the 8th pin of speech chips by resistance R 21, the 10th pin links to each other with the 6th pin of MCU, the 11st pin links to each other with the 5th pin of MCU, and the 12nd pin connects the 5V power supply, and the 13rd pin connects the 3rd pin of MCU, the 14th pin connects the 2nd pin of MCU, the 15th pin connects the 1st pin of MCU, and the 16th pin connects capacitor C 3, C3 one termination 5V;