System and method for diagnosing home appliance
First Claim
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1. A diagnostic system for a home appliance, comprising:
- a diagnostic server configured to receive a sound signal including a product information from the home appliance and diagnose a faulty operation of the home appliance using the received sound signal, wherein the diagnostic server detects data corresponding to the product information using a plurality of synchronous signals generated at intervals of a predetermined time, and diagnoses a current status of the home appliance, a faulty operation, and a cause of the faulty operation through the product information, wherein the diagnostic server extracts a post-preamble estimated as a preamble, generates the plurality of synchronous signals on the basis of the post-preamble, and detects not only a preamble but also data corresponding to the product information on the basis of a predetermined preamble size and a predetermined data size, wherein the diagnostic server includes a clock generator that generates the plurality of synchronous signals at intervals of the predetermined time, and wherein the clock generator generates at least three synchronous signals, each of which corresponds to the post-preamble, at intervals of the predetermined time, and changes a time interval of generating each synchronous signal in response to a symbol time of the sound.
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Abstract
A system and method for diagnosing a home appliance are disclosed. The home appliance outputs product information as a predetermined sound signal, and transmits the sound signal to a service center of a remote site over a communication network, such that a service technician of the service center can easily check a current status of the home appliance. The diagnostic system effectively detects data using multiple synchronous signals having a time difference, quickly diagnoses a current status or fault of the home appliance, provides a service for more correctly diagnosing a faulty operation of the home appliance, and increases user satisfaction and reliability.
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Citations
14 Claims
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1. A diagnostic system for a home appliance, comprising:
a diagnostic server configured to receive a sound signal including a product information from the home appliance and diagnose a faulty operation of the home appliance using the received sound signal, wherein the diagnostic server detects data corresponding to the product information using a plurality of synchronous signals generated at intervals of a predetermined time, and diagnoses a current status of the home appliance, a faulty operation, and a cause of the faulty operation through the product information, wherein the diagnostic server extracts a post-preamble estimated as a preamble, generates the plurality of synchronous signals on the basis of the post-preamble, and detects not only a preamble but also data corresponding to the product information on the basis of a predetermined preamble size and a predetermined data size, wherein the diagnostic server includes a clock generator that generates the plurality of synchronous signals at intervals of the predetermined time, and wherein the clock generator generates at least three synchronous signals, each of which corresponds to the post-preamble, at intervals of the predetermined time, and changes a time interval of generating each synchronous signal in response to a symbol time of the sound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A diagnostic method for use in a diagnostic system of a home appliance, the diagnostic method comprising:
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receiving a sound signal generated from the home appliance; detecting a post-preamble estimated as a preamble from the sound signal, and generating a plurality of synchronous signals at intervals of a unit time in response to the detected post-preamble; detecting product information contained in the sound signal by extracting a data candidate for each synchronous signal in response to the plurality of synchronous signals and checking an error of the data candidate; and diagnosing a status of the home appliance by analyzing the product information wherein the generating of the synchronous signals includes; generating a plurality of synchronous signals at intervals of a predetermined unit time when detecting a post-preamble of a first time in association with the sound; and generating a plurality of synchronous signals at intervals of a predetermined unit time when detecting a post-preamble of a second time. - View Dependent Claims (10, 11, 12, 13)
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14. A diagnostic method for use in a diagnostic system of a home appliance, the diagnostic method comprising:
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receiving a sound signal generated from the home appliance; detecting a post-preamble estimated as a preamble from the sound signal, and generating a plurality of synchronous signals at intervals of a unit time in response to the detected post-preamble; detecting product information contained in the sound signal by extracting a data candidate for each synchronous signal in response to the plurality of synchronous signals and checking an error of the data candidate; and diagnosing a status of the home appliance by analyzing the product info nation, wherein the plurality of synchronous signals, after the post-preamble is detected, are generated at a specific position at which the detected post-preamble is ended.
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Specification