Apparatus for detecting faults of loudspeakers and loudspeaker system

A fault detection and speaker technology, applied in the direction of sensors, transducer circuits, sensor components, etc., can solve the problems of inability to judge that the audio line is disconnected, the speaker voice coil is disconnected, and the use cost is high, achieving low cost, comprehensive detection, achieve simple effects

Active Publication Date: 2012-07-18
EDAN INSTR
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  • Abstract
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AI Technical Summary

Problems solved by technology

However, this method requires that the audio connector can only use a JACK connector with a complex structure, which is expensive to use, and this method can only detect whether the audio cable is inserted, but cannot judge the failure of the audio line disconnection, speaker voice coil disconnection, etc.

Method used

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  • Apparatus for detecting faults of loudspeakers and loudspeaker system
  • Apparatus for detecting faults of loudspeakers and loudspeaker system
  • Apparatus for detecting faults of loudspeakers and loudspeaker system

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Embodiment Construction

[0019] Such as figure 1 As shown, the present invention discloses a fault detection device for a speaker, including an impedance detection circuit 102, a signal source device 101, a fault judgment control device 108, a filter circuit 103, an audio drive circuit 106, and an audio connector 107. The audio connector The device 107 is connected to the impedance detection circuit 102, the output terminal of the impedance detection circuit 102 is connected to the filter circuit 103, the output terminal of the filter circuit 103 is connected to the fault judgment control device 108, and the fault judgment control device 108 output end is connected with described audio drive circuit 106, and described audio drive circuit 106 output end is connected with described audio connector 107, and described signal source device 101 is connected with described impedance detection circuit 102; The fault judgment control device 108 is used for judging the status of the speaker 100 and prompting th...

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Abstract

The invention provides an apparatus for detecting faults of loudspeakers. The apparatus has the advantages that an impedance detecting circuit built by the aid of the impedance characteristic of loudspeakers, the impedance detecting circuit, a filter circuit and a fault judging and control device can conveniently implement an online fault detecting function of loudspeakers. The apparatus is independent of an audio driver and does not affect function implementation of loudspeakers. Compared with the JACK connector detecting method, the apparatus and the system do not relay on certain connectors and are capable of detecting whether audio cables are connected, open-circuited, open-circuited in voice coil and short-circuited or not in real time. The apparatus and the system are low in cost, simple in implementation and complete in detection.

Description

technical field [0001] The invention relates to a fault detection device, in particular to a fault detection device of a loudspeaker and a loudspeaker system. Background technique [0002] The loudspeaker is an electroacoustic conversion device that converts electrical signals into sound waves and is widely used in various equipment. In medical equipment, speakers are used for audible alarms. When the detected parameters are abnormal or the equipment fails, the speaker will output an alarm sound to remind the operator. During the process of assembly, transportation and use, there may be a risk of loosening and falling off of the connecting wire of the speaker, and the risk of falling off, disconnection and short circuit of the speaker voice coil. If the speaker fails, the device will lose the audible alarm function, affecting the operator's timely response to the alarm event. [0003] In the prior art solution, the PC uses the JACK connector method to determine whether th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R29/00H04R3/00
Inventor 文微苏生陈良款
Owner EDAN INSTR
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