CN101848151B - Household appliance device diagnosis system and method - Google Patents
Household appliance device diagnosis system and method Download PDFInfo
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- CN101848151B CN101848151B CN201010160191XA CN201010160191A CN101848151B CN 101848151 B CN101848151 B CN 101848151B CN 201010160191X A CN201010160191X A CN 201010160191XA CN 201010160191 A CN201010160191 A CN 201010160191A CN 101848151 B CN101848151 B CN 101848151B
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Abstract
The invention relates to a household appliance device diagnosis system and method, wherein product information is output according to a set signal tone by a household appliance device and the signal tone is transmitted through a connected communication net so that a remote service center can easily confirm the state of the household appliance device; and when analyzing the signal tone of the household appliance device, the diagnostic server of the service center selects a plurality of headers candidates and utilizes weighted value to detect data more effectively, thus realizing fast diagnosis, preventing data analysis errors and the diagnosis errors caused by data analysis errors. In addition, the system of the invention can provide more accurate failure diagnosis service, thus improving the degree of satisfaction and reliability of users.
Description
Technical field
The present invention relates to electric household appliance diagnostic system and diagnostic method thereof; Particularly relate to the signal tone of a kind of utilization from electric household appliance output; Through the product information that comprises in the analytic signal sound; With the state of inspection electric household appliance, thus the electric household appliance diagnostic system and the diagnostic method thereof that can be easy to carry out after-sale service.
Background technology
Electric household appliance is used for operating the set point of execution, the information of operating generation, fault message etc. with storage in the process of carrying out various set operations.Particularly, when breaking down, will export set prompt tone, and make the user who utilizes electric household appliance confirm the state of electric household appliance.Above-mentioned electric household appliance also will be through the output device that is provided with, for example through concrete fault messages of output such as display unit, bulbs except the situation that simple prompting operation finishes or fault takes place.
In addition, when in electric household appliance, taking place under the unusual situation, the user will be through getting in touch with service centre etc., and the inquiry problem relevant with the state of electric household appliance, or, send after-sale services such as maintenance personal to the electric household appliance request of fault.
At this moment, the general simple output of the fault message of electric household appliance, or; Can't export by cognitive code value with the user, the user is difficult to the fault of reply electric household appliance, even get in touch with service centre; Also will be difficult to pass on accurately the state of electric household appliance, thus, when the maintenance personal visits family; Owing to can accurately not confirm the state of electric household appliance in advance, with the situation that more time and expense take place need consume when electric household appliance keeps in repair.For example, under the situation of the required parts of offhand electric household appliance maintenance in advance, the maintenance personal needs the loaded down with trivial details family of visiting once more, and will consume the time more than corresponding.
In order to address the above problem, the server of electric household appliance and maintenance center can be connected through set communicator, and still, this need construct other communication network.
Put down in writing among the license US5987105 and utilized telephone network to convert the fault message of electric household appliance the signal tone of audio-band into, and sent it technology of to service centre etc. through telephone set.
But, in order in electric household appliance, to utilize voice output information, send sound to service centre, and state and the fault of diagnosing electric household appliance through phonetic analysis are whether through telephone network, need be when analyzing sound and diagnosing to the accurate detection of data.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency that prior art exists; Improve through research, a kind of electric household appliance diagnostic system and diagnostic method thereof are provided, in the present invention; When reception includes the set signal tone and the analysis of product information and diagnoses the state of electric household appliance; Can detect the header of the beginning that is used for reminder-data that comprises in the signal tone more accurately, thereby can be easy to carry out Data Detection, and realize accurate data analysis and failure diagnosis.
The technical scheme that the present invention provides is: electric household appliance diagnostic system of the present invention is characterized in that comprise with lower component: the acoustic signal that will include product information is output as at least one electric household appliance of signal tone; Reception is from the above-mentioned signal tone of above-mentioned electric household appliance output; And execution is to the diagnosis server of the failure diagnosis of above-mentioned electric household appliance; Wherein, Above-mentioned diagnosis server extracts a plurality of header candidates from above-mentioned signal tone, from above-mentioned a plurality of header candidates, detect header detecting the product information that comprises in the above-mentioned signal tone, with to the state of above-mentioned electric household appliance, whether fault reaches failure cause diagnoses.
Aforesaid electric household appliance diagnostic system; It is characterized in that; Comprise signal detecting part and diagnosing section in the above-mentioned diagnosis server; Said signal detecting part is given through Signal Matching and weighted value for above-mentioned a plurality of header candidates, from above-mentioned a plurality of header candidates, detects above-mentioned header, and utilizes above-mentioned detection of preamble to go out the said goods information; Said diagnosing section is analyzed the said goods information, with to the state of above-mentioned electric household appliance, whether fault reaches failure cause diagnoses.
Aforesaid electric household appliance diagnostic system; It is characterized in that: above-mentioned signal detecting part forms the first header candidate crowd who includes above-mentioned a plurality of header candidates; Extract for a plurality of header candidates of next time forming the second header candidate crowd with data that include the said goods information and above-mentioned header big or small corresponding, and the above-mentioned first header candidate crowd's header candidate and the above-mentioned second header candidate crowd's header candidate are mated one to one.
Aforesaid electric household appliance diagnostic system is characterized in that: above-mentioned weighted value is given in the position for coupling that above-mentioned signal detecting part is corresponding with above-mentioned matching result one to one, and will be set at above-mentioned header by each header candidate weighted value and high.
Aforesaid electric household appliance diagnostic system is characterized in that: above-mentioned signal detecting part and the size of predefined header and big or small corresponding the detect the said goods information corresponding with the size of predefined data of the time point from above-mentioned end of header of data.
Aforesaid electric household appliance diagnostic system; It is characterized in that; Comprise in the above-mentioned electric household appliance with lower component: when the input signal output order; Send control signal in order to export the signal tone corresponding, the said goods information is divided into the control part of a plurality of data and a plurality of headers of control insertion with product information; Corresponding with above-mentioned control signal is the converter section of the acoustic signal of set frequency band with the said goods information translation; The sound equipment efferent that above-mentioned acoustic signal is exported with set signal tone.
The diagnostic method of electric household appliance diagnostic system of the present invention is characterized in that, may further comprise the steps: when the input signal sound, from above-mentioned signal tone, extract the step of a plurality of header candidates; Signal Matching and weighted value through to above-mentioned a plurality of header candidates are given, and from above-mentioned a plurality of header candidates, detect the step of header; With above-mentioned header is benchmark, detects the step of the data that comprise product information; Analyze above-mentioned product information, and carry out step the diagnosis of above-mentioned electric household appliance.
The diagnostic method of aforesaid electric household appliance diagnostic system; It is characterized in that: in above-mentioned detection of preamble step; Extract for a plurality of header candidates of the very first time with for a plurality of header candidates of next second time, and above-mentioned a plurality of header candidates and above-mentioned header candidate for second time for the very first time mated one to one.
The diagnostic method of aforesaid electric household appliance diagnostic system; It is characterized in that: in above-mentioned detection of preamble step; In above-mentioned matching result, will give predefined weighted value for the position of unanimity, and header candidate weighted value and maximum will be set at the above-mentioned header for the very first time.
The diagnostic method of aforesaid electric household appliance diagnostic system; It is characterized in that: in above-mentioned Data Detection step, with the big or small corresponding time point from above-mentioned end of header and the above-mentioned size of data of the size of predefined header and data corresponding detect above-mentioned data.
Compared with prior art, the invention has the beneficial effects as follows:, can effectively detect the data of the information that includes substantial electric household appliance through detecting header in the signal that from electric household appliance, receives accurately; Thereby can realize analyzing rapidly and diagnosing; Simultaneously, the DE that causes because of inaccurate data can be prevented, thereby accuracy can be improved for the diagnosis of the state of electric household appliance; Thus, can greatly improve satisfaction and the reliability of user to the failure diagnosis service.
Description of drawings
Fig. 1 is the structure chart that illustrates the structure of the diagnostic system that comprises the electric household appliance in one embodiment of the invention;
Fig. 2 is the sketch map that illustrates the relevant structure of the relation of electric household appliance and electric household appliance and service centre in one embodiment of the invention;
Fig. 3 is the block diagram that illustrates the structure of electric household appliance and diagnosis server in one embodiment of the invention;
Fig. 4 is the illustrated view that simple graph illustrates the structure of electric household appliance and the signal tone in the diagnosis server in one embodiment of the invention;
Fig. 5 is the flow chart that illustrates the detection of preamble method of the diagnosis server among the present invention;
Fig. 6 be illustrate with Fig. 5 in the corresponding header candidate crowd of detection of preamble extract the example illustrated view;
Fig. 7 is the illustrated view that illustrates an example of the detection of preamble of giving through coupling between the header candidate among Fig. 5 and weighted value;
Fig. 8 be illustrate the diagnosis server that is used for one embodiment of the invention detection of preamble the header candidate one the example illustrated view;
Fig. 9 is the flow chart of another embodiment that illustrates the detection of preamble method of the diagnosis server among the present invention;
Figure 10 is the illustrated view that illustrates according to an example of the detection of preamble of the diagnosis server of the detection of preamble method among Fig. 9.
The symbol description * * * of * * accompanying drawing major part
1: electric household appliance 22: operating portion
60: converter section 72: the sound equipment efferent
200: service centre/diagnosis server
250: signal detecting part 260: diagnosing section
Embodiment
Below, will the embodiment among the present invention be described with reference to accompanying drawing.
Fig. 1 is the structure chart of structure of diagnostic system that comprises the electric household appliance of the embodiment among the present invention.
With reference to Fig. 1, the diagnostic system among the present invention, it comprises with lower component: the electric household appliance 1 that is arranged at a plurality of places respectively; Be used to diagnose the state and the Fault Diagnosis server of electric household appliance.Wherein, be provided with operating portion, set display part in the electric household appliance 1, and the sound equipment efferent that is used to export signal tone.
When from the electric household appliance 1 of each family during with the product information of signal tone output electric household appliance or state information; The voice signal that comprises product information and state information will be sent to the diagnosis server of service centre 200 through telephone network, thereby to its fault of condition diagnosing of electric household appliance whether.
The product information of the electric household appliance 1 that shows in the efferent of user through affirmation electric household appliance 1, the operation of control electric household appliance 1, or to service centre's 200 request maintenances.
Be connected to service centre the user, and during the input unit that is provided with in requirement (S3) the operation electric household appliance 1 according to the operator of service centre, in electric household appliance 1, comprise the signal tone (S4) of product information, and send signal tone to service centre.At this, the electric household appliance 1 among the present invention is not simple output products information, but converts product information into set signal tone and output.
Promptly; The user is (S2 in the process that the operator with service centre 200 converses; S3); Telephone set 81 is pressed close to the position of sounding of electric household appliance 1, take place in electric household appliance 1 that the signal tone that comprises product information or state information (S1) of output will be sent to service centre (S4) through telephone network when unusual.
The sound signal storage of the electric household appliance that the operator of service centre will receive through telephone network in diagnosis server, diagnosis server analytic signal sound, and the Product Status of diagnosis electric household appliance 1 and fault whether (S5).
For the Product Status that is suitable for electric household appliance 1 and the service of failure diagnosis are provided, service centre 200 is corresponding with diagnostic result sends maintenance personal 93 family (S6).At this, diagnostic result can send maintenance personal 93 terminal (S6) to, the fault that makes the maintenance personal repair electric household appliance 1, or, can convey to the user through the operator, and diagnostic result can send user's E-mail address to, or send portable terminal device to.
Thus, diagnostic system is connected to service centre the user through set communication network, for example, when being connected to service centre through telephone network, can judging the state and the reply of electric household appliance 1 through signal tone accurately, thereby realize service rapidly.
Below, will be that the situation of device for processing washings is that example describes with the electric household appliance among the present invention 1.But the present invention is defined in this, and the present invention is equally applicable to whole electric household appliances 1 such as TV, air-conditioning, washing machine, refrigerator, electric rice cooker, microwave ovens.
Above-mentioned electric household appliance 1 is made up of following structure, and with product information with the output of set signal tone, thereby state through diagnosis server diagnosis electric household appliance 1 and fault are whether.
Fig. 2 is the sketch map of the relevant structure of the relation of electric household appliance and electric household appliance and service centre in one embodiment of the invention.
Embodiment as electric household appliance will be that the center describes with the device for processing washings, with reference to Fig. 2 (a), comprise in the device for processing washings 1: housing 111; Be arranged at the inside of housing 111, and carry out the washing tub 122 of the washing of washings; Be used to drive the motor (not shown) of washing tub 122; Be used for supplying with the washings feedway (not shown) of washings to washing tub 122; After washing finishes, washings are discharged to outside drainage arrangement (not shown).
Comprise with lower component in the above-mentioned housing 111: enclosure body 112; The case lid 113 that is arranged at enclosure body 112 and combines; Be arranged at the upside of case lid 113, be used to control the control panel 116 of the running of device for processing washings 1; Be arranged at the upside of control panel 116, and the top panel 115 that combines with enclosure body 112.Wherein, comprise with lower component in the case lid 113: the hole (not shown) that is used to make washings discrepancy; But the door 114 in the above-mentioned hole of switching of turn.
In control panel 116, be provided with a plurality of operation keyss 117, aforesaid operations key 117 is used for the running of operated wash thing processing unit 1.And, also be provided with lower component in the above-mentioned control panel 116: be used for sound equipment efferent 72 with the operating condition of signal tone output device for processing washings 1; Be used for showing the display part 71 of above-mentioned operating condition with image.
With reference to Fig. 2 (b), when generation is unusual in above-mentioned device for processing washings 1, will in display part 71, exports corresponding with it information, or export set warning tones.Thus, when device for processing washings 1 generation is unusual, the user will get in touch with service centre 200, and at this moment, the user will operate operating portion 22 according to the requirement of service centre.
In above-mentioned device for processing washings 1, along with the user carries out button operation to operating portion 22,, and convert product information into acoustic signal through converter section 60 with the input signal output order, and through sound equipment efferent 72 with set signal tone output acoustic signal.
At this moment, the signal tone 100 through 72 outputs of sound equipment efferent will send service centre 200 to through the terminal 81 that is connected with set communication network.At this, communication network is an example with telephone network or portable mobile communication net, and terminal 81 is so that use the situation of telephone set, portable terminal to describe as example.
Fig. 3 is the block diagram that illustrates the structure of electric household appliance and diagnosis server in one embodiment of the invention, and Fig. 3 (a) is the block diagram that illustrates the structure of device for processing washings 1, and Fig. 3 (b) is the block diagram of structure that illustrates the diagnosis server of service centre.
The device for processing washings 1 that constitutes as previously mentioned will comprise that also following control structure operates, and with reference to Fig. 3 (a), comprise in the device for processing washings 1: input part 21; Operating portion 22; Test section 30; Drive division 40; Storage part 50; Converter section 60; Efferent 70; And the control part 10 that is used for the control device integrated operation.Wherein, comprise display part 71, sound equipment efferent 72 in the efferent 70.
In order to carry out set operation, drive division 40 will with corresponding its driving of control of control signal that inserts from control part 10.Under the situation of device for processing washings, be rotated and remove the spot in the washings in order to make Wash tub or cylinder, the motor that drive division 40 will be used in rotation Wash tub or cylinder drives, and controls its operation.And the by-pass valve control that drive division 40 is corresponding with the control signal of control part 10 feeds water or draining to carry out.
Comprise at least one transducer in the test section 30, when aforesaid device for processing washings 1 is carried out set operation through drive division 40, above-mentioned test section 30 will detect the data of the operation that is used to confirm device for processing washings 1, and be linked into control part 10.For example, in device for processing washings, the water level of the water when test section 30 detects feedwater or draining, and the rotary speed of temperature, Wash tub or the cylinder of the water of detection feedwater etc.
To store the aforesaid operational state data that in the process of the set operation of device for processing washings 1 execution, takes place in the storage part 50; For example; The operation informations of importing through input part 21 in order to make device for processing washings 1 carry out set operation such as setting data; And when misoperation takes place, comprise the reason of misoperation or in device for processing washings 1 to the fault message of the information at misoperation position.And, store the control data of the operation that is used to control device for processing washings 1 in the storage part 50, and the reference data of using when controling.
Comprise at least one input unit in the operating portion 22, its reception makes product information pass through the signal output order of sound equipment efferent 72 with set signal tone output, and is linked into control part 10.And operating portion 22 receives the signal output order, and makes sound equipment efferent 72 opening/closings (on/off).That is, when when the operating portion 22 input signal output orders, will be corresponding with the control signal of control part 10 with set signal tone output products information, at this moment, sound equipment efferent 72 will be operated, and export signal tone.
The setting that input part 21 will receive as input unit and signal tone output is corresponding, that is, input part 21 receives the set point of the size of the signal tone that is used to set the method for exporting signal tone, output etc.
At this moment; Input units such as operating portion 22 and input part 21 20 can be by button, circular switch (dome switch), touch pad (static pressure/static), handle (jog wheel), rocker switch (jog switch), finger mouse (finger mouse), rotary switch (rotary switch), stir dish formations such as (jog dial); So long as through operating the device that generates set input data, it can use any.
When from operating portion 22 input signal output orders; Control part 10 will access the product information of storage in the storage part 50; And being linked into converter section 60, the concurrent converter section 60 of sening as an envoy to converts product information the control signal of set acoustic signal into, and; Along with the signal output order of input operation part 22, control part 10 will be controlled sound equipment efferent 72 and operate.
Wherein, as previously mentioned, comprise in the product information: including that running is set, the operation information of operating condition etc. in the operation, and the fault message relevant with misoperation.Product information is by 0 or 1 data that constitute, and it is the digital signal of the form that can be understood by control part 10.
The product information with storage part 50 that converter section 60 is corresponding with the control signal of control part 10 converts the set acoustic signal that is used for signal tone output into; Wherein, Converter section 60 will convert the analog signal of set frequency band as the product information of digital signal into; When conversion of signals,, and convert product information into acoustic signal with some modes of utilizing in frequency shift (FS) mode, amplitude excursion mode, the phase deviation mode.
Wherein, The frequency shift (FS) mode is the mode of the signal that convert set frequency corresponding with the data value of product information, and in addition, the amplitude excursion mode is the size of the transition amplitude corresponding with data value; Make its different mode each other; And the phase deviation mode is the data value switching signal according to product information, makes phase place different mode each other.
At this moment; Output signal tone in except comprising product information; Add the header (preamble) of the beginning that is used to point out the data that include product information in the forward part of data; In data, except product information, also will comprise the check digit (check bit) of the error checking that is used for data.
After sound equipment efferent 72 is exported acoustic signal with signal tone, when end of output, its operation will be stopped, and through operating portion 22 input signal output orders the time, will operate once more, and export set signal tone.
At this, in the efferent 70 except comprising above-mentioned sound equipment efferent 72 with the display part 71, also can comprise the bulb lighting or glimmer, vibrating elements etc.But, will save explanation below to this.
The set signal tone of device for processing washings 1 output that constitutes as stated, and be described below, the product information of device for processing washings 1 will be transmitted to service centre 200.
When the product information of device for processing washings 1 is exported with signal tone, and when sending service centre 200 to through telephone network etc., it will be imported into the diagnosis server that is provided with in the service centre 200, thereby carry out the failure diagnosis to device for processing washings 1.
Shown in Fig. 3 (b), comprise in the above-mentioned diagnosis server with lower component: Department of Communication Force 220; Signal processing part 230; Data portion 240; Input and output portion 270; Signal detecting part 250; Clock generation portion 280; Diagnosing section 260, and the master control part 210 that is used for the integrated operation of Control Server.
Comprise in the input and output portion 270 by input units such as the button of the user of service centre 200 operation, key, touch pad, switches; And comprise that being used for explicit user exports the operation information of diagnosis server and the display unit of diagnostic result; And, comprise in the input and output portion 270 for external input device, portable connecting interface (interface) with storage arrangement.
Input and output portion 270 will insert signals to master control part 210 when input unit is operated, make diagnosis server receive the signal tone of the device for processing washings that telephone set or portable terminal device by the user who connects through telephone network transmit.
Department of Communication Force 220 is connected with the zooming net of service centre and transceive data, simultaneously, is connected with external network such as internet and communicates.Particularly, Department of Communication Force 220 corresponding with the control command of master control part 210 at the input record command of the operation through input unit or when collecting mail instruction, will be through telephone network reception signal tone data, and send diagnostic result to outside.
In data portion 240; Be used for control data that diagnosis server operates and will store with bit stream data (bit steam data) 242 from the signal tone data that electric household appliances such as device for processing washings receive; And store the reference data 241 that is used for going out the product information of electric household appliance, and be used for the diagnostic data 243 whether tracing trouble reaches failure cause from the signal tone Data Detection.And, in data portion 240, will store with electric household appliance data 244 from the product information of bit stream data 242 detected electric household appliances 1.
In order to detect header, reference data 241 includes the benchmark header with electric household appliance 1 convention.The size of the header that from electric household appliance 1, comprises in the signal tone of output with the big or small corresponding information of data, and stores the weighted value data of giving header.And the weighted value data can change according to the form of header and with everybody (bit) corresponding importance degree of header.
At this, data portion 240 is imported, is managed and upgrade through 210 pairs of reference datas 241 of master control part, bit stream data 242, diagnostic data 243, electric household appliance data 244.
The signal tone data of the simulation that signal processing part 230 will receive are changed, and bank bit flow data 242.At this moment, the conversion of signals in signal processing part 230 is the inverse conversion for the conversion of signals in the electric household appliance 1, and each electric household appliance and diagnosis server are preferably through mutual convention, to carry out data transaction through identical conversion of signals system.And signal processing part 230 will convert digital signal into as the signal tone of the analog signal of set frequency band through utilizing the some inverse conversion in frequency shift (FS) mode, amplitude excursion mode, the phase deviation mode.
Signal detecting part 250 is from the bit stream by signal processing part 230 conversions; At first detect the header of the beginning that is used for reminder-data; With detected header is the data that benchmaring comprises product information, and it is stored in the data portion 240 as electric household appliance data 244.
Because may generation signals distortion or loss of data in the process that signal tone transmits; Also may be added noise; Signal detecting part 250 will generate a plurality of header candidates from bit stream, and in a plurality of header candidates through with reference data 241 in storage the benchmark header coupling (matching) and the weighted value of header candidate adopted detect header.The number of the header candidate that comprises among the header candidate crowd at this moment, can be according to the size of the size of header, data, change with the corresponding unit of selected header candidate.
The signal detecting part 250 selected first header candidate crowds; And extract the second header candidate crowd corresponding with next time with header and data big or small corresponding; After n the header candidate that comprises among each candidate crowd mated each other; In matching result, give weighted value, and the header candidate that weighted value is high is chosen to be header.
In addition, as another embodiment, signal detecting part 250 is chosen to be strong header with some in a plurality of header candidates, and compares with the header of next time, thereby finally can detect header.
At this moment; Signal detecting part 250 is according to the relevant information of sizes that comprise and size header and data in the reference data 241; From strong header with big or small corresponding next headers that detects of the size of header and data; And itself and strong header mated, whether accomplish detection of preamble according to its unanimity.When strong header was not header, signal detecting part 250 began selected strong header from next header candidate again, and finally detects header.At this moment, signal detecting part 250 will be according to the selected strong header of the high order of weighted value.
Signal detecting part 250 detects header through aforesaid mode, and it can detect header through some methods according to setting, and the weighted value that adopt this moment is all applicable in two kinds of methods.
When detection of preamble finishes, signal detecting part 250 will be that benchmaring goes out data with detected header, and it is stored in the data portion 240 as electric household appliance data 244.
Signal detecting part 250 generates the candidate crowd relevant with header, utilization is mated and weighted value continue to carry out repeatedly through with the detection of preamble of the comparison of the header of next time, from bit stream, to detect the data of the product information that comprises electric household appliance 1.
Diagnosing section 260 will be analyzed the reason of fault analyzing, utilize state and fault that the product information that comprises in the data judges electric household appliance 1 through signal detecting part 250 detected data whether, and the output diagnostic result.
And; Master control part 210 is to each structure member access control instruction; Make diagnosing section 260 utilize detected data that electric household appliance is carried out failure diagnosis, master control part 210 will be controlled the diagnostic result through input and output portion 270 output diagnosing section 260, or transmit through Department of Communication Force 220.
Fig. 4 is the illustrated view of the structure of simple graph electric household appliance and the signal tone in the diagnosis server that one embodiment of the invention is shown.
With reference to Fig. 4, electric household appliance 1 comprises that in signal tone the data that include product information form signal with being used for the header of Data Detection, and exports with signal tone when the output signal tone.
At this; The packets of information (packet) that the control part 10 of electric household appliance makes signal tone is constituted by a plurality of data and a plurality of headers, and wherein, the size (B) of size of each header (A) and data is certain; Header will be inserted at certain intervals repeatedly; At this moment, the header of the very first time (T1), second time (T2), the 3rd time (T3) will be all identical, but data will be all different.
Diagnosis server receives above-mentioned signal tone and detects header, and is that benchmaring goes out data with the header, thereby the product information through analyzing the electric household appliance that comprises in the data is with to diagnosing malfunction.
The signal detecting part 250 of diagnosis server is when detecting header; Owing to distortion taking place in transmission course or losing; To select a plurality of header candidates at this, and adopt, with the some headers that is set in the header candidate through the coupling and the weighted value of header candidate.
At this moment, signal detecting part 250 can extract first and second header candidate crowd, and extracts header through each candidate crowd's coupling and weighted value employing.
For example; Extract first header candidate crowd relevant and the second header candidate crowd relevant respectively with second time (T2) with the very first time (T1); With two man-to-man couplings of candidate crowd; And on the position of unanimity, adopt weighted value, thereby the header that the header candidate that weighted value is high is set at the very first time (T1).
As another method, signal detecting part 250 will be chosen to be the header candidate with the similar signal of benchmark header, and through weighted value adopt and with the coupling of the header of next time whether and with the some headers that is chosen to be in a plurality of header candidates.
Promptly; Signal detecting part 250 is in a plurality of header candidates relevant with the very first time (T1); And after the header of second time that extracted (T2) corresponding with size of data matees; Whether the header of the strong header of the reverse judgement very first time, thereby detect header, and be that benchmaring goes out data with the header that is detected.
Diagnosing section 260 is comprehensively by signal detecting part 250 detected data, that is, with tracing trouble whether the data of the very first time (T1), the data of second time (T2), and the data of the 3rd time (T3) are analyzed it.
Below, will the operation in the one embodiment of the invention that constitute as stated be described.Below, will be that example describes with the device for processing washings in the electric household appliance.
Below, will simply explain the header and the Data Detection of diagnosis server.
Diagnosis server carries out Treatment Analysis to the signal tone data of input; To carry out diagnosis to electric household appliance; When receiving in the diagnosis server or during the input signal sound data, the signal tone data will obtain conversion by signal processing part, and store as bit stream data 242.At this moment, the signal tone data transaction that signal processing part 230 will be made up of sound is for by 0 and 1 the numerical data that constitutes, and with its with as the bit stream of time series (time series) data store.
Signal detecting part 250 is corresponding with the control command of master control part 210 from bit stream data, generate the header candidate after; Adopt the coupling that reaches with next header to detect header through weighted value; When detection of preamble is accomplished; Signal detecting part 250 utilizes the detection of preamble data that are detected, and the data of 260 pairs of collections of diagnosing section are analyzed.At this, the data that are detected are the data that comprise the product information of electric household appliance 1, and it is stored in the electric household appliance data 244.
Diagnosing section 260 is carried out the failure diagnosis to electric household appliance according to the analysis result of the product information that comprises in the data of collecting; Master control part 210 transmits the diagnostic result of diagnosing section 260 through Department of Communication Force 220, or exports through input and output portion 270, at this moment; Diagnosis server sends diagnostic result at maintenance personal's terminal; Or be input to input and output portion 270, thus, from service centre to the user notification diagnostic result.
Thus, the user obtains diagnostic result and tackles, or, repairing the unusual of electric household appliance through sending of maintenance personal, the maintenance personal of visit family receives diagnostic result, and checks the state place under repair of electric household appliance in view of the above.
At this, will be described below for detection of preamble and corresponding with it Data Detection.
Fig. 5 is the flow chart that illustrates the detection of preamble method of the diagnosis server among the present invention.
With reference to Fig. 5, as S310 during incoming bit stream in the diagnosis server, signal detecting part 250 will generate n header candidate according to the size of the header of appointment, and extract the first header candidate crowd S320.
Each is a benchmark to signal detecting part 250 with a plurality of header candidates of being contained in the first header candidate crowd, considers the size of header and the size of data, from bit stream, generates the header candidate of n next second time, and extracts the second header candidate crowd S330.
Each matees S340 one to one with a plurality of header candidates that comprise among a plurality of header candidates that comprise among the first header candidate crowd and the second header candidate crowd.
Signal detecting part 250 will be given weighted value S350 to the position of being mated according to the first header candidate crowd and the second header candidate crowd's matching result.
At this, weighted value is preestablished header, and each position of header is set with weighted value, for example, suppose header be 5bits ' 01110 ' time, give weighted value for the order that above-mentioned header can ' 13531 ' to each.
For example; When first header candidate of first and second header candidate crowd is ' 01001 ' and ' 01111 '; Because first, second, the 5th position unanimity; Will as in the weighted value first, 1,3,1 the giving in first header candidate of second, the 5th value, at this moment, the weighted value of first header candidate will be as 1,3,1 and 5.
After the matching result that first and second header candidate faciation is closed is given weighted value; The header candidate that weighted value is high is chosen to be header S360; And be benchmaring data S370 with the header that is chosen, signal detecting part 250 is stored in detected data in the data portion 240 as electric household appliance data 244.
Above-mentioned header candidate crowd's coupling and the weighted value process of giving will be carried out repeatedly, all detected (S310 to S380) until the required data of diagnosis.
As the required data of diagnosis S380 when all being detected, diagnosing section 260 will be analyzed data, with to the state of electric household appliance, whether fault reaches failure cause diagnoses S390.
Fig. 6 illustrates the illustrated view of extracting example according to the header candidate crowd of the detection of preamble among Fig. 5.
As shown in Figure 6; Signal detecting part 250 is selected a plurality of header candidates for the very first time from the bit stream 100 that is transfused to; And extract the first header candidate crowd (151 to 155); And,, and extract the second header candidate crowd (161 to 165) with the size of predefined header and big or small corresponding selected a plurality of header candidates of data for second time.
Signal detecting part 250 matees respectively the header candidate that comprises among first and second header candidate crowd (151 to 155) (161 to 165) one to one; Promptly; The first header candidate crowd's first header candidate 151 and the second header candidate crowd's the first header candidate 161 are mated, and whether judge its unanimity by each position.
Signal detecting part 250 is given predefined weighted value with the corresponding position to consistent of the matching result of each header candidate; And with by each weighted value with the weighted value of setting for each header candidate; At this moment, for the weighted value of header being that ' 13531 ' situation is an example in order.
After giving weighted value, compare for the weighted value of each header candidate, and the header candidate that weighted value is high is set a position header.
Fig. 7 is the illustrated view that illustrates an example of the detection of preamble of giving through coupling between the header candidate among Fig. 5 and weighted value, and Fig. 7 is an example that forms two candidate crowds and detect header according to weighted value.
Wherein, the header candidate that illustrates among Fig. 7 with after header candidate among Fig. 8 of stating different, still, the mode of the Fig. 8 that will state after on the method for selected header from bit stream, will continuing to use.
Shown in Fig. 7 (a); The first header candidate 151 the first header candidate crowd is ' 01101 '; The second header candidate crowd's the first header candidate 161 is under ' 01100 ' the situation; Because first, second, the 3rd, the 4th position be consistent with each other, with giving corresponding with it weighted value 1,3,5,3, as itself and 12 will to be set to be the weighted value of the first header candidate 151.
Shown in Fig. 7 (b); The second header candidate 152 the first header candidate crowd is ' 01010 '; The second header candidate crowd's the second header candidate 162 is under ' 01110 ' the situation; Because first, second, the 4th, the 5th position be consistent with each other, with giving corresponding with it weighted value 1,3,3,1, as itself and 8 will to be set to be the weighted value of the second header candidate 152.
Shown in Fig. 7 (c); The 3rd header candidate 153 the first header candidate crowd is ' 10111 '; The second header candidate crowd's the 3rd header candidate 163 is under ' 10101 ' the situation; Because first, second, the 3rd, the 5th position be consistent with each other, with giving corresponding with it weighted value 1,3,5,1, as itself and 10 will to be set to be the weighted value of the 3rd header candidate 153.
Shown in Fig. 7 (d); In the first header candidate crowd's the 4th header candidate 154 is that ' 01110 ', the second header candidate crowd's the 4th header candidate 164 is under ' 01110 ' the situation, because five positions are all consistent; To give weighted value 1,3,5,3,1, weighted value will become 13.
Shown in Fig. 7 (e); The 5th header candidate 155 the first header candidate crowd is ' 11100 '; The second header candidate crowd's the 5th header candidate 165 is under ' 01001 ' the situation; Because second, the 4th position is consistent with each other, with giving corresponding with it weighted value 3,3, weighted value will become 6.
As stated; Signal detecting part 250 compares the first header candidate crowd's header candidate (151 to 155) and the second header candidate crowd's header candidate (161 to 165) respectively; The weighted value of in the position of coupling, giving header, and the header candidate that weighted value is high in the header candidate is set at header.
That is, will be set to the header of the very first time as ' 01110 ' of the 4th header candidate.
Wherein, when the header candidate like unanimities such as the 4th header candidates did not exist, the first header candidate 151 ' 01101 ' that next weighted value is high was set at the header of the very first time.
When detecting header; Signal detecting part 250 will utilize the big or small corresponding detection data of detected header and predefined header and data; Promptly; When the 4th header candidate 154 is set to header, will be as Data Detection from the time point that the 4th header candidate 154 finishes to the bit stream of size of data.
Signal detecting part 250 carries out the detection of header and data by the way repeatedly; And store detected data; Diagnosing section 260 is analyzed it when data are collected; And utilize the product information of the electric household appliance that comprises in the data, carry out the state information of electric household appliance, the diagnosis whether fault reaches failure cause.
Wherein, the method for selected header candidate from bit stream will be described below.
Fig. 8 be the detection of preamble that is used for diagnosis server in one embodiment of the invention the header candidate one the example illustrated view.Wherein, Fig. 8 (a) is the sketch map that illustrates an example of bit stream, and Fig. 8 (b) is the sketch map that illustrates header candidate crowd's a example.
Shown in Fig. 8 (a), when incoming bit stream, signal detecting part 250 is selected header candidate shown in Fig. 8 (b), and extracts the header candidate crowd who includes a plurality of header candidates.
When selected header candidate; Because the benchmark header is 5bits; The first header candidate 281 is chosen to be ' 01101 '; And successively the second header candidate 282 is chosen to be ' 11010 ' from next bit, selected by the way the 3rd, the 4th, the 5th header candidate 283,284,285, and n header candidate be chosen to be a header candidate crowd (281 to 293).
At this moment, signal detecting part 250 is with the selected at interval header candidate of 1bit, according to set can be different selected header candidate; Promptly; Can the first header candidate be chosen to be ' 01101 ', and be chosen to be the second header candidate (281,284) with ' 01010 ' with the interval of 3bits.
The number of header candidate will may change according to the unit of the size of the size of header, data, selected header candidate.
Fig. 9 is the flow chart of another embodiment that illustrates the detection of preamble method of the diagnosis server among the present invention, and Fig. 9 is the detection of preamble method that has under the situation of benchmark header.
With reference to Fig. 9, when signal detecting part 250 carries out the detection of preamble in the very first time at the bit stream to input, will generate a plurality of header candidates, and extract the first header candidate crowd S420.
At this moment, signal detecting part 250 will generate the first header candidate according to the size of the header of appointment, then generate the second header candidate, and n header candidate is extracted as the first header candidate crowd.
Signal detecting part 250 matees S430 with benchmark header and a plurality of header candidates of the first header candidate crowd who is extracted out, and the weighted value of setting in the header is given to header candidate S440.
At this, the benchmark header is predetermined, and weighted value is preestablished for header, and each position of header is set with weighted value, and for example, the benchmark header is ' 01110 ' of 5bits, gives to each position for the order that the weighted value of header can 13531.
Be under ' 01001 ' the situation in first header candidate; When mating with benchmark header ' 0110 '; Since have only first, second coupling; With give as in the weighted value first, second value 1,3, make the weighted value of first header candidate be as 1 and 3 and 4.
Give the result the corresponding header candidate that selection position matching rate is high, weighted value is high with matching result and weighted value; And it is chosen to be strong header S450; Be benchmark and consider the size of header and the size of data with strong header, from bit stream, detect the header S460 of next second time.
The strong header of the very first time of selecting with the header of detected second time with by weighted value matees, and judges whether S470 of its unanimity, and at this moment, the header of second time is a nonce.
At this; When the strong header of the very first time and the header of second time are inconsistent; Signal detecting part 250 is selected the next high header candidate of weighted value from the first header candidate crowd; And it is chosen to be strong header S480, being the header that benchmark detected for second time once more, and header and the benchmark header of second time compared S460, S470 by selected stronger header.Wherein, signal detecting part 250 can be a plurality of header candidates more than the certain value for weighted value, extracting the header for second time as stated, and matees the selected header in back.
In the matching result of benchmark header and the header of second time, give weighted value; The strong header that weighted value is high is finally confirmed as the header of the very first time; And end is for the detection of preamble S490 of the very first time; When the selected stronger header of quilt is inconsistent, select the comparison that reaches with next header with carrying out above-mentioned header candidate repeatedly based on weighted value.
Signal detecting part 250 is stored in the electric household appliance data 244 according to detected detection of preamble data and with it.
Subsequently, signal detecting part 250 is carried out above-mentioned detection of preamble and Data Detection repeatedly for the bit stream that continues and is stored, until collecting required all data (S510, S410 to S500) of diagnosis.
S510 when detecting required all data of diagnosis, 260 pairs of data of diagnosing section are analyzed, with to the state of electric household appliance, whether fault reaches failure cause diagnoses S520.
Figure 10 is the illustrated view that illustrates according to an example of the detection of preamble of the diagnosis server of the detection of preamble method among Fig. 9.
Foregoing shown in Figure 9, the signal detecting part 250 of diagnosis server will utilize the benchmark header to extract the header candidate when having the benchmark header, and therefrom selected header is to detect data.
Below, will be that ' 01110 ' the situation of 5bits is an example with the benchmark header, to coupling and weighted value for the header candidate give, final header is selected describes.And, will be with the selected header candidates of foregoing bit stream 100 for input shown in Figure 8, and extract the header candidate crowd who includes a plurality of header candidates and describe for example.
When selected header candidate; Because the benchmark header is 5bits; The first header candidate 281 is chosen to be ' 01101 '; And the second header candidate 282 is chosen to be ' 11010 ' from next bit, selected by the way the 3rd, the 4th, the 5th header candidate 283,284,285, and n header candidate be chosen to be a header candidate crowd (281 to 293).At this moment, signal detecting part 250 is with the selected at interval header candidate of 1bit, according to circumstances can be according to setting and different selected header candidates.
Figure 10 (a) is an example of the weighted value of giving in the header.Wherein, will be that example describes to give ' 13531 ' weighted value in order for header.And, only illustrate the header candidate many in the header candidate that in Fig. 8 (b), illustrates among Figure 10 (b) with the matching degree benchmark header.
Signal detecting part 250 will be in the weighted value of giving in the matching result of header candidate and benchmark header shown in Figure 10 (a) shown in Figure 10 (b).
The first header candidate 281 ' 01101 ' is during with benchmark header ' 01110 ' coupling since its first to the 3rd position coupling, will give weighted value 1,3,5, and as 1,3,5 and 9 will be set to the first header candidate weighted value.
Because second, the 4th, the 5th position of the second header candidate 282 ' 11010 ' coupling will be given weighted value 3,3,1, as itself and 7 will be set to weighted value.
By the way; To set in the 4th header candidate 284 will set in weighted value 7, the seven header candidates 287 in weighted value 8, the six header candidates 286 and will set weighted value 8; To set in the 8th header candidate 288 in weighted value 13, the nine header candidates 289 and will set weighted value 9.
Wherein, the 8th weighted value is high header candidate 288 is chosen to be strong header.
When as selected the 8th header candidate 288 of strong header, will be benchmark with the 8th header candidate 288, and detect the header of second time according to the size of the size of header and data.
At this moment; When the header that with the 8th header candidate is second time of going out of benchmaring is detected as when being ' 01110 ' 298; To mate as the 8th header candidate 288 of strong header with as ' 01110 ' 298 of the header of second time; When coupling, will finally be set at the header of the very first time as the 8th header candidate of strong header.
Wherein, In the process that signal transmits under the generation signals distortion or the situation of losing; When not existing like header candidates consistent such as the 8th header candidates with the benchmark header; The high header candidate of weighted value among aforesaid Fig. 8 (b) is chosen to be strong header, detects the header of second time in view of the above, and finally set header according to matching result.
That is, because except the 8th header candidate, the weighted value of the first header candidate 281 and the 9th header candidate 289 is next high, can it be chosen to be strong header, and is that benchmaring goes out the header for second time with the strong header of selecting.At this moment, can from the high header candidate of weighted value, strong header be chosen to be a plurality ofly, also can certain ratio be chosen to be strong header by the high order of weighted value.
For example; Under the situation of the first header candidate 281; When the header of detected second time is ' 01100 '; With mating and draw its weighted value as ' 01101 ' of the first header candidate 281 is 10; The 4th header candidate 284 is that the header of 13, the seven header candidates 287 in second time is that the header of 5, the nine header candidates 289 in second time is that its weighted value is 4 under ' 01001 ' the situation for its weighted value under ' 10101 ' the situation at the header of second time for its weighted value under ' 01110 ' the situation.
Under the non-existent situation of the 8th header candidate, the 4th header candidate 284 that weighted value is high will be set to header, wherein, under the situation of the 4th header candidate 284, can infer for having mistake in the 3rd position in the header of the very first time.
At this moment; Can the header candidate of the very first time and the weighted value of the header candidate of second time be carried out worthwhile and selected header; Form according to header; Selected header may change, but through reducing weighted value in the generation signals distortion easily or the part of losing, and in header identification, improve weighted value in the important position and can it be eliminated.
Thus, in electric household appliance diagnostic system of the present invention and diagnostic method thereof, the relationship detection between the header goes out header with utilizing weighted value and next header to reach before, thereby can effectively detect header, and improves the accuracy of corresponding with it Data Detection.And,, can prevent DE, and can realize diagnosing fast and accurately owing to can detect data accurately.
The present invention is illustrated according to embodiment, should be appreciated that the foregoing description does not limit the present invention in any form, and all employings are equal to replacement or the technical scheme that obtained of equivalent transformation mode, all drop within protection scope of the present invention.
Claims (9)
1. an electric household appliance diagnostic system is characterized in that, comprises with lower component: the acoustic signal that will include product information is output as at least one electric household appliance of signal tone; Reception is from the above-mentioned signal tone of above-mentioned electric household appliance output; And execution is to the diagnosis server of the failure diagnosis of above-mentioned electric household appliance; Wherein, Above-mentioned diagnosis server extracts a plurality of header candidates from above-mentioned signal tone, from above-mentioned a plurality of header candidates, detect header detecting the product information that comprises in the above-mentioned signal tone, with to the state of above-mentioned electric household appliance, whether fault reaches failure cause diagnoses;
Comprise signal detecting part and diagnosing section in the above-mentioned diagnosis server; Said signal diagnosing section is given through Signal Matching and weighted value for above-mentioned a plurality of header candidates; From above-mentioned a plurality of header candidates, detect above-mentioned header, and utilize above-mentioned detection of preamble to go out the said goods information; Said diagnosing section is analyzed the said goods information, with to the state of above-mentioned electric household appliance, whether fault reaches failure cause diagnoses.
2. electric household appliance diagnostic system according to claim 1; It is characterized in that: above-mentioned signal detecting part forms the first header candidate crowd who includes above-mentioned a plurality of header candidates; Extract for a plurality of header candidates of next time forming the second header candidate crowd with data that include the said goods information and above-mentioned header big or small corresponding, and the above-mentioned first header candidate crowd's header candidate and the above-mentioned second header candidate crowd's header candidate are mated one to one.
3. electric household appliance diagnostic system according to claim 2; It is characterized in that: above-mentioned weighted value is given in the position for coupling that above-mentioned signal detecting part is corresponding with above-mentioned matching result one to one, and will be set at above-mentioned header by each header candidate weighted value and high.
4. electric household appliance diagnostic system according to claim 1 is characterized in that: above-mentioned signal detecting part and the size of predefined header and big or small corresponding the detect the said goods information corresponding with the size of predefined data of the time point from above-mentioned end of header of data.
5. electric household appliance diagnostic system according to claim 1; It is characterized in that; Comprise in the above-mentioned electric household appliance with lower component: when the input signal output order; Send control signal in order to export the signal tone corresponding, the said goods information is divided into the control part of a plurality of data and a plurality of headers of control insertion with product information; Corresponding with above-mentioned control signal is the converter section of the acoustic signal of set frequency band with the said goods information translation; The sound equipment efferent that above-mentioned acoustic signal is exported with set signal tone.
6. the diagnostic method of an electric household appliance diagnostic system is characterized in that, may further comprise the steps: when the input signal sound, from above-mentioned signal tone, extract the step of a plurality of header candidates; Signal Matching and weighted value through to above-mentioned a plurality of header candidates are given, and from above-mentioned a plurality of header candidates, detect the step of header; With above-mentioned header is benchmark, detects the step of the data that comprise product information; Analyze above-mentioned product information, and carry out step the diagnosis of above-mentioned electric household appliance.
7. the diagnostic method of electric household appliance diagnostic system according to claim 6; It is characterized in that: in above-mentioned detection of preamble step; Extract for a plurality of header candidates of the very first time with for a plurality of header candidates of next second time, and above-mentioned a plurality of header candidates and above-mentioned header candidate for second time for the very first time mated one to one.
8. the diagnostic method of electric household appliance diagnostic system according to claim 7; It is characterized in that: in above-mentioned detection of preamble step; In above-mentioned matching result; Predefined weighted value will be given in position for unanimity, and header candidate weighted value and maximum is set at the above-mentioned header for the very first time.
9. the diagnostic method of electric household appliance diagnostic system according to claim 6; It is characterized in that: in above-mentioned Data Detection step, with the big or small corresponding time point from above-mentioned end of header and the above-mentioned size of data of the size of predefined header and data corresponding detect above-mentioned data.
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| KR101797946B1 (en) * | 2011-05-25 | 2017-12-12 | 삼성전자주식회사 | Self diagnostic system of home appliance and operating method the same |
| CN104597813B (en) * | 2014-12-23 | 2017-11-03 | 高峰 | A kind of smart jack of automatic identification electric operation state |
| CN104849286B (en) * | 2015-06-09 | 2019-05-17 | 广东美的厨房电器制造有限公司 | Dustiness processing unit and household electrical appliance |
| CN108492535B (en) * | 2018-03-13 | 2020-10-16 | 宁夏宁信信息科技有限公司 | Household appliance monitoring method and device |
| CN112556087B (en) * | 2020-11-20 | 2021-12-10 | 珠海格力电器股份有限公司 | Unit fault diagnosis method and device and controller |
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| WO2009134044A2 (en) * | 2008-04-29 | 2009-11-05 | Lg Electronics Inc. | Home appliance and home appliance system |
| US8705715B2 (en) * | 2008-04-30 | 2014-04-22 | Lg Electronics Inc. | Home appliance, home appliance system, and diagnosis method of a home appliance |
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