CN201204140Y

CN201204140Y - Elevator push-button device

Info

Publication number: CN201204140Y
Application number: CNU200820056470XU
Authority: CN
Inventors: 周翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-21
Filing date: 2008-03-21
Publication date: 2009-03-04
Anticipated expiration: 2018-03-21

Abstract

The utility model relates to a button device in an elevator, particularly to a touch induction speech button device. The utility model discloses a technical scheme of the touch induction speech button device aiming at the defects that the button of the elevator is easy to press in error, identification speed is slow, it is easy to leave with bacilli after repeated touch and the like. The technical scheme is that, a capacitance induction button includes an MCU, an capacitance comparator and an induction surface, which is connected with an input end of the capacitance comparator, and the output end of the capacitance comparator is connected with the MCU. On the basis of the traditional elevator, through capacitance technology, the utility model is added with trigger matter of the button and a speech circuit, to realize 'the third state' of the button- providing speech information when touching, which is convenient for the blind to use, causing the elevator to be with more humanization, also is suitable for the blind to use without changing a controller of the elevator. Modularization causes development more conveniently.

Description

A kind of elevator button device

Technical field

The utility model relates to a kind of pushbutton unit, particularly a kind of elevator button device.

Background technology

The button that uses on existing button, the especially elevator, general button are 2 attitude formula buttons (closed or disconnections).Mostly be the metal button greatly, minority is the polymethyl methacrylate button, the other braille (Braille) that all is provided with of general button.When the blind person enters this elevator selection floor under unmanned situation about helping, the general position of at first seeking button with hand, after having found button, around button or its, seek braille again, find and all will carefully touch the floor that a period of time could the recognition button representative behind the braille.Sometimes also can identification error and push the wrong button and go to the wrong way floor.The braille recessed portion that touches repeatedly is easy to make dirty in addition, and easy cleaning not, makes that to produce a large amount of bacterium dirts residual.In a word, although existing elevator button is carved with the button of braille, but recognition speed is slower and easy misoperation, also makes things convenient for bacterium residual.

Summary of the invention

At existing pushbutton unit shortcoming in use, solve elevator button and the utility model proposes a kind of elevator button device at the convenient problem of pointing out of blind person.

This elevator button device has 2 attitude buttons 6, it is characterized in that comprising a voice module 1.

This elevator button device also comprises touch sensible module 5.

Described voice module comprises MCU 3, sound circuit 2 and serial i/O circuit 4.

Described touch sensible module comprises the NE555 chip, the 8th pin of this chip and the 4th pin short circuit, link work input voltage positive input terminal, one end of resistance R 1 is linked the 8th pin of 555 chips, the other end is linked the 6th pin of 555 chips, the 6th pin of chip and the 7th pin short circuit, one end of capacitor C 2 connects the 2nd pin of 555 chips, the other end connects sheet metal P and is connected with an end of capacitor C 1, the other end of capacitor C 1 connects the 1st pin of 555 chips, the 1st pin of chip is connected with the negative pole of operating voltage input, and the 3rd pin of 555 chips is linked the data input pin of controller.

Behind the parametric optimization, described resistance R 1 is 330 ohm, and capacitor C 1 is 22 microfarads, and the work input voltage is 9 volts.

This programme increases the triggering mode and the sound circuit of button by adopting the capacitive induction technology, to realize " elicit illness state " of button---and when touching is that the blind person provides voice messaging.

In order to realize the imagination of such scheme, pushbutton unit can be respectively voice module, 2 attitude button module and touch sensible module by mainly being made up of 3 parts specifically.Wherein voice module comprises MCU, sound circuit, and serial i/O chip expansion, keyboard array comprises the NE555 chip, the metal elevator button.Pushbutton unit also comprises the state that is touched except 2 kinds of states of common closed and disconnected simultaneously.When button was touched, the control circuit in the control box triggered sound circuit work, transfers corresponding phonetic code, and do not change MCU the input of button scan code is not read.Have only when press really or unclamp be positioned at touch the parts next door 2 attitude buttons the time, the state that MCU just can read in the closed of button or disconnect also is the state of " 1 " or " 0 ", thereby carries out follow-up work.

The utility model is made and assembled simply, and is with low cost, easy to operation, is quick on the draw, and speech quality is good, has power-off protection and low-power consumption.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the touch circuit theory diagrams in the pushbutton unit

Embodiment

As shown in Figure 1, the control box of pushbutton unit part is made up of single-chip microcomputer, sound circuit and serial i/O chip.Single-chip microcomputer adopts AVR series, sound circuit adopts the ISD chip, touch component circuitry and do the touch circuit by adopting the NE555 chip, be output as the square wave about 50ms, and use the AVR single-chip microcomputer and gather the level signal that each button sends, by ISD speech chip synthetic speech, finished product is modular then.

Specifically, as shown in Figure 2, touch treatment circuit and comprise the NE555 timing circuit, be connected into monostable circuit here.Hold non-inductive voltage owing to touch sheet P at ordinary times, capacitor C 1 is by NE555 the 7th pin discharge off, and the 3rd pin is output as low level, no-output.

Lay a finger on sheet metal P with hand, the noise signal voltage of human body sensing makes the output of NE555 become high level by hanging down by the trigger end that C2 adds to NE555.Simultaneously, NE555 ends the 7th pin inside, and power supply just charges to C1 by R1, the beginning of timing that Here it is.

When capacitor C 1 power on press rise to supply voltage 2/3 the time, NE555 the 7th pin road is logical to make the C1 discharge, makes the output of the 3rd pin change back to low level by high level, regularly finishes.Regularly length is determined by R1, C1: T1=1.1R1*C1.

Through overtesting relatively, best parameter configuration is: C1 gets 22 μ f, and R1 gets 330 ohm, and operating voltage is input as 9V, and timing is about 50 milliseconds like this.

With the burned single-chip microcomputer of institute's programming, can make control box by BASCOM software according to programme operation.

Sound circuit is selected ISD segmentation sound circuit BMP5028 speech processing module for use, this module recording is very convenient, as long as the memory address of depositing with good this recording of computer end software setting is just passable by computer TTS speech synthesis system typing speech data then earlier.

When this button used, when the people touched the 3rd buildings, elevator was said " the 3rd building ", and when pressing " the 3rd building " button, elevator says that " the 3rd buildings are definite! ", and start working.When elevator is busy, can also ejects dulcet sound as piano by touch and come out.

Claims

1, a kind of elevator button device has 2 attitude buttons (6), it is characterized in that: comprise a voice module (1).

2, elevator button device as claimed in claim 1 is characterized in that: also comprise touch sensible module (5).

3, elevator button device as claimed in claim 2, it is characterized in that: described touch sensible module (5) comprises the NE555 chip, the 8th pin of this chip and the 4th pin short circuit, link work input voltage positive input terminal, one end of resistance R 1 is linked the 8th pin of 555 chips, the other end is linked the 6th pin of 555 chips, the 6th pin of chip and the 7th pin short circuit, one end of capacitor C 2 connects the 2nd pin of 555 chips, the other end connects sheet metal P and is connected with an end of capacitor C 1, the other end of capacitor C 1 connects the 1st pin of 555 chips, and the 1st pin of chip is connected with the negative pole of operating voltage input, and the 3rd pin of 555 chips is linked the data input pin of controller.

4, elevator button device as claimed in claim 3 is characterized in that: described resistance R 1 is 330 ohm, and capacitor C 1 is 22 microfarads, and the work input voltage is 9 volts.