Intelligent control method and device for electric horn

A control method and a technology of a control device, which are applied to sound-generating devices and instruments, and can solve problems such as inconvenient use, high cost, and frequent occurrence of traffic accidents

Inactive Publication Date: 2011-02-23
曹志才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 ele

Method used

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  • Intelligent control method and device for electric horn
  • Intelligent control method and device for electric horn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1: See Figure 1, Figure 5 , in the figure, the dynamic frequency stabilization control method of the electric horn is as follows: firstly, the natural frequency value of the electric horn stored in the single-chip microcomputer or the non-volatile data memory when the electric horn runs the dynamic frequency stabilization control method last time is the output frequency, using The single-chip microcomputer outputs a square wave signal, and the square wave signal is amplified by power to drive the electric horn to work, and the output signal of the detection device is input to the analog-to-digital conversion input terminal of the single-chip microcomputer for analog-to-digital conversion, and the detection device detects the vibration strength of the electric horn diaphragm , and then, the frequency of the square wave signal is adjusted step by step by increasing or decreasing the adjustment amount of 0.005~5.0Hz through the single chip microcomputer. The cl...

Embodiment 2

[0112] Embodiment 2: Referring to Fig. 2 and Fig. 6, the numbers in the figure are the same as those in Embodiment 1, and the representative meanings are the same, and the working process is basically the same, and the similarities will not be repeated. The difference is: the vibration signal detection of the vibrating membrane The module 5 contains a linear Hall sensor 19, the output terminal of the linear Hall sensor 19 is connected to the analog signal input terminal AN2 of the microcontroller U1, the source of the field effect transistor V2 is grounded, and a pillar 17 is vertically fixed on the inner wall of the bowl-shaped bottom case 11 , a bracket 18 is horizontally fixed on the pillar 17, a linear Hall sensor 19 is installed at one end of the bracket 18 and the linear Hall sensor 19 is close to the moving iron core 14, and the outer surface of the moving iron core 14 is provided with a fixed card 22, on which the fixed card 22 A permanent magnet 21 corresponding to the...

Embodiment 3

[0115] Embodiment Three: See Figure 3, Figure 7 , the numbers in the figure are the same as those in Embodiment 1, the representative meanings are the same, and the working process is basically the same. The photocoupler 24 contains emitting diode L2 and linear illuminance sensor U4, the anode of emitting diode L2 is connected to the power supply terminal of the single-chip microcomputer U1 through the resistor R10, 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, and the linear illuminance sensor 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 shell 11, and a support 18 is fixed horizontally on the support 17, and a linear photocoupler 24 is installed on one end of the support 18 And the linear photocoupler 24 is close to the mov...

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PUM

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Abstract

The invention relates to an intelligent control method and an intelligent control device for an electric horn. The dynamic frequency stabilization control method for the electric horn comprises the following steps of: driving the electric horn to work after square wave signals output by a singlechip are subjected to power amplification, then adjusting the frequency of the square wave signals in amode of gradual increasing or gradual reducing with adjusting quantity of 0.005 to 5.0Hz, and meanwhile, detecting the vibration strength of a vibrating diaphragm of the electric horn through the singlechip so as to find the natural vibration frequency of the electric horn. The control device of the electric horn comprises a bowl-shaped bottom shell, a static iron core, a dynamic iron core, a coil, the vibrating diaphragm and a control circuit, wherein the control circuit comprises a micro processing module, a power supply module, a coil driving module, a key input module and a vibrating diaphragm vibration signal detecting module. The invention provides the intelligent control method and the intelligent control device for the electric horn, which can automatically adjust the driving frequency in real time and automatically stabilize the sound pressure level, wherein the device has environment-friendly sound production function and is convenient to connect keys.

Description

technical field [0001] The invention relates to a horn control method and device, in particular to an electric horn intelligent control method and device. Background technique [0002] At present, the driving frequency of electric horns of motor vehicles is fixed before leaving the factory, and the natural frequency of electric horns will change due to changes in environmental conditions during use (for example: changes in temperature between winter and summer, air pressure between plains and plateaus) Changes, etc.) and changes in the mechanical properties of the electric horn can cause its change. Since the resonant peak of the electric horn diaphragm is very sharp, if the driving frequency cannot be adjusted in time, it may cause a sharp drop in the sound pressure level of the electric horn , or even be scrapped, which will affect the prompting effect and increase the energy consumption. For example: Patent No. 98807769.8 The method and device for frequency stabilization...

Claims

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Application Information

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IPC IPC(8): G10K9/12
Inventor 曹志才
Owner 曹志才
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