Self-adoptive efficient sounding method and apparatus of electro-sounding apparatus

A sound-generating device and self-adaptive technology, applied in the direction of sound-generating devices, instruments, etc., can solve the problems of affecting the sound level, the difference between the frequency of the circuit stabilization frequency and the natural vibration frequency of the machine, and the frequency mismatch.

Inactive Publication Date: 2007-01-10
阮刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of the relationship between the mechanical manufacturing process of the speaker itself, the overall natural vibration frequency of the speaker is distributed within a certain range, so that the frequency stabilization frequency of the circuit is different from the mechanical natural vibration frequency, thus affecting the sound level of its sound.
[0005] 2. Due to the influence of ambient temperature and other short-term or long-term mechanical effects, the natural vibration frequency has shifted, resulting in frequency mismatch and sound level change, which cannot be solved at present
[0006] 3. The electronic circuit itself determines that the parameters of the device that controls the frequency are affected by temperature, etc., resulting in frequency mismatch and sound level changes. At present, it is solved by improving the stability of the device, and the cost is high.
[0007] 4. Due to the long-term use against the natural characteristics, the life of the diaphragm is reduced
[0008] 5. The above problems also exist in another control parameter, the energization rate.
There is no product that solves these problems

Method used

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  • Self-adoptive efficient sounding method and apparatus of electro-sounding apparatus
  • Self-adoptive efficient sounding method and apparatus of electro-sounding apparatus
  • Self-adoptive efficient sounding method and apparatus of electro-sounding apparatus

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0087] Example 1: Vibration of the Hall sensor diaphragm (such as figure 2 8 Hall element integrated circuits, 9 magnetic force line emitters), the subsequent processing of the signal is as follows image 3 As shown, we first obtain the natural frequency by the method of residual vibration test; Figure 5 For the circuit, in a relatively small range such as 5Hz, the accuracy is 1Hz; in the range of 65% to 75% energization rate, the accuracy is 1%. The frequency and energization rate are finally determined by adjusting while working.

[0088] The whole process: speaker power-initialization of microprocessor and each unit-test-adjustment-control-speaker power-off end.

example 2

[0089] Example 2: Sensing with an induction coil, such as figure 2 of 10 induction coils, whose signals are processed as Figure 4 (You can also choose Figure 5 ), first obtain the natural vibration frequency by the method of residual vibration test, and then adjust the energization rate by the flat-bottom method of energization rate adjustment.

example 3

[0090] Example 3: Take the style of direct coil as Figure 4 The circuit uses the method of residual vibration test to obtain the natural frequency, and then uses the direct power supply voltage to obtain the pattern such as Figure 4 The energization rate is adjusted by the flat-bottom method of energization rate adjustment.

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Abstract

The present invention relates to electro-sounding device self adaptation high efficiency sounding every aspect, including sensing, signal processing, controlling, and testing and control method; to solve convenient production, service performance stability and service life etc problem.

Description

Technical field: [0001] The invention relates to a motor vehicle horn, especially how the electronic module of a non-contact electronic horn adapts to the mechanical characteristics of the assembled horn and can still produce sound efficiently with the change of its own state and environment with the passage of time, and meets the performance and life indicators. Background technique: [0002] The traditional contact car horn, mainly because the life of its contacts is relatively short, many of them use electronic frequency stabilization to control the on-off of the contacts. There are many methods of frequency stabilization, such as based on RC oscillation, crystal, ceramics and integrated Circuits, single-chip microcomputers, etc., no matter which method is used, although the problem of contact life is solved, the following problems are still difficult to solve: [0003] 1. The manufacturing process is complicated. [0004] It is necessary to match the frequency parameter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10K9/12
Inventor 阮刚
Owner 阮刚
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