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Key-press input module

A technology of input modules and buttons, applied in simulators, instruments, computer control, etc., can solve problems such as easy burning, complicated circuits, and inconvenience for drivers and pedestrians

Inactive Publication Date: 2012-10-03
曹志才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No. 97219874.1 The motor vehicle non-contact electric horn stabilizes the sound pressure level by adjusting the input signal strength of the power amplifier, so that the power amplifier will be in the amplified state, and the power amplifier tube will generate heat, which is easy to burn and has poor practicability
[0004] Electric horn is a necessary safety signal device on motor vehicles. With the rapid increase of the number of motor vehicles, the sound of electric horns has become one of the main sources of traffic noise. In order to reduce this noise, major and medium cities across the country , especially the bustling roads have implemented banning, although this can reduce noise, but it has brought a lot of inconvenience to drivers and pedestrians, and traffic accidents occur from time to time
At present, special devices are usually used to change the sound pressure level of electric horns. For example, the sound pressure level adjustment device for low-noise motor vehicle electric horns with patent No. 85204415 adjusts the sound pressure level by adjusting the size of the resonance cavity with screws. The adjustment process is complicated. Inconvenient to use
[0005] At present, some key units of electronic horns are triggered by the positive pole of the power supply, and some are triggered by the negative pole of the power supply. Although there are also technical solutions that can be connected to the positive pole of the power supply and the negative pole of the power supply, the circuit is complicated.
For example: the car multi-tone horn of the patent No. 200720176711.X, the key input module has many circuit components and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Embodiment 1: See Figure 1, Figure 5 , in the figure, the electric horn intelligent control device includes a bowl-shaped bottom shell 11, a static iron core 13, a moving iron core 14, a coil L1, a vibrating membrane 12, and a control circuit. The vibrating membrane 12 covers the top of the bowl-shaped bottom shell 11. The iron core 13 is fixed in the middle of the bowl-shaped bottom shell 11, and a moving iron core 14 is arranged above the static iron core 13. The moving iron core 14 is fixedly connected with the middle part of the vibrating membrane 12, and the coil L1 is set on the static iron core 13 and Outside the moving iron core 14, the circuit board 16 containing the control circuit is fixed on the inner wall of the bowl-shaped bottom shell 11. The control circuit contains a micro-processing module 1, a power supply module 2, a coil drive module 3, a key input module 4, and a vibrating membrane vibration The signal detection module 5, the microprocessing modul...

Embodiment 2

[0079] Embodiment 2: Referring to Fig. 2 and Fig. 6, the numbers in the figures are the same as those in Embodiment 1, the meanings of representation are the same, and the working process is basically the same. The module 5 includes a linear Hall sensor 19, the output end of the linear Hall sensor 19 is connected to the analog signal input end AN2 of the single-chip microcomputer U1, the source electrode of the field effect transistor V2 is grounded, and the inner wall of the bowl-shaped bottom case 11 is vertically fixed with a pillar 17 , a bracket 18 is fixed laterally on the pillar 17, and one end of the bracket 18 is installed with a linear Hall sensor 19 and the linear Hall sensor 19 is close to the moving iron core 14. The outer surface of the moving iron core 14 is provided with a fixed card 22, on the fixed card 22 A permanent magnet 21 corresponding to the position of the linear Hall sensor 19 is installed, the sensing area of ​​the linear Hall sensor 19 is arranged b...

Embodiment 3

[0082] Embodiment 3: see Figure 3, Figure 7 , the number in the figure is the same as that of the first embodiment, the meaning is the same, and its working process is basically the same, and the similarities will not be repeated. The photocoupler 24 contains an emitting diode L2 and a linear illuminance sensor U4. The anode of the emitting diode L2 is connected to the power supply terminal of the single-chip microcomputer U1 through the resistor R10, and the + terminal of the linear illuminance sensor U4 is connected to the power supply terminal of the single-chip microcomputer U1 through the resistor R11. The + terminal of U4 is also connected to the analog signal input terminal AN2 of the single-chip microcomputer U1. A pillar 17 is vertically fixed on the inner wall of the bowl-shaped bottom case 11, and a bracket 18 is horizontally fixed on the pillar 17. One end of the bracket 18 is installed with a linear photocoupler 24 And the linear photocoupler 24 is close to the m...

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Abstract

The invention relates to a key-press input module which comprises a motor vehicle horn key-press, a stabilivolt tube DW2, a resistance R3 and a resistance R4, wherein one end of the motor vehicle horn key-press is connected with the power output positive end or the power output negative end of a motor vehicle battery jar, the other end of the motor vehicle horn key-press is connected with a digital signal input end IN1 of a single chip microcomputer through the resistance R3, the digital signal input end IN1 of the single chip microcomputer is also connected with a digital signal output end O1 through the resistance R4 and also the cathode of the stabilivolt tube DW2, the anode of the stabilivolt tube DW2 is in grounding, and one end of the motor vehicle horn key-press is connected with the power output positive end or the power output negative end of the motor vehicle battery jar through a single-pole double-throw switch. The invention provides the key-press input module which has the advantages of simple structure and convenient use.

Description

technical field [0001] The invention relates to a key input module. Background technique [0002] At present, the driving frequency of motor vehicle electric horns is fixed before leaving the factory, and the natural frequency of electric horns is changed during use due to changes in environmental conditions (for example: temperature changes between winter and summer, air pressure between plains and plateaus) Changes in the electric horn, etc.) and changes in the mechanical properties of the electric horn can cause its changes. Since the resonance peak of the electric horn diaphragm is very sharp, if the driving frequency cannot be adjusted accordingly, it may cause the sound pressure level of the electric horn to drop sharply. , or even scrapped, thus affecting the prompt effect, and the energy consumption will also increase. For example: Patent No. 98807769.8 method and device for frequency stabilization of electric horn, its driving frequency is solidified in the program...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/042
Inventor 曹志才
Owner 曹志才
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