Ultrasonic module failure detection method and electronic equipment
An electronic equipment and ultrasonic technology, which is applied in the ultrasonic module failure detection method and the field of electronic equipment, can solve the problems of high detection cost and affect the use of electronic equipment by users, and achieve the effect of low detection cost
Active Publication Date: 2021-09-24
VIVO MOBILE COMM CO LTD
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Problems solved by technology
[0004] Embodiments of the present invention provide a failure detection method of an ultrasonic module and electronic equipment to solve the technical problems in the prior art that the detection cost is relatively high and affect the use of electronic equipment by users
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[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0032] Embodiments of the present invention provide a failure detection method of an ultrasonic module and electronic equipment.
[0033] The method for detecting failure of an ultrasonic module provided by an embodiment of the present invention will be firstly introduced below.
[0034] It should be noted that the method provided by the embodiment of the present invention is applicable to electronic equipment, and the electronic equipment structu...
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The invention discloses a method for detecting failure of an ultrasonic module and electronic equipment. The method includes: when the self-test function of the ultrasonic module of the electronic equipment has been started, performing a frequency sweep on a speaker in the ultrasonic module at a specific frequency point within a specific frequency band Voltage v1, obtain the current i1 in the drive circuit of the speaker under v1, and determine the impedance curve imS1 of the speaker in a specific frequency band according to v1 and i1, if the difference between imS1 and the preset first impedance curve imS0 is within the preset first range , it is determined that the speaker is working normally, otherwise it is determined that the speaker is abnormal. Compared with the prior art, in the embodiment of the present invention, the failure detection of the ultrasonic module can be performed based on the devices on the electronic equipment, and the failure detection of the ultrasonic module can be realized without professional equipment other than the electronic equipment, and the detection cost is relatively low. Low, and during the detection process, it will not affect the user, and will not affect the user's use of electronic equipment.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of electronic equipment, and in particular, to a method for detecting failure of an ultrasonic module and electronic equipment. Background technique [0002] With the development of communication technology, ultrasonic technology has been applied in electronic equipment, such as ultrasonic ranging, ultrasonic proximity sensing, gesture recognition, etc., accompanied by the failure detection of ultrasonic modules in electronic equipment. Since the audio signal can be intuitively felt by the user, the user can quickly respond to the problem of the electronic device during use, while the ultrasonic signal is outside the audible sound range and cannot be directly felt by the user. Therefore, the electronic device is required to have an ultrasonic module. Failure self-inspection function, in order to detect the abnormality of the ultrasonic module in time, feed back to the user and make corr...
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IPC IPC(8): H04R29/00G01D18/00G01S7/52
CPCG01D18/00G01S7/52004H04R29/001
Inventor 兰晓东
Owner VIVO MOBILE COMM CO LTD