CN201797521U - Diagnosis system for home appliances - Google Patents
Diagnosis system for home appliances Download PDFInfo
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- CN201797521U CN201797521U CN2010201754709U CN201020175470U CN201797521U CN 201797521 U CN201797521 U CN 201797521U CN 2010201754709 U CN2010201754709 U CN 2010201754709U CN 201020175470 U CN201020175470 U CN 201020175470U CN 201797521 U CN201797521 U CN 201797521U
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Abstract
The utility model relates to a diagnosis system for home appliances. A home appliance in the diagnosis system for home appliances outputs product information in set signal sound, and the signal sound is transmitted by a connected communication network to enable a remote service center to easily confirm the state of the home appliance. In addition, a diagnosis server of the service center selects a plurality of headers as alternate candidates when analyzing the signal sound of the home appliance, and more effectively detects data by the aid of weighted values so as to realize quick diagnosis and prevent data analysis errors and consequent diagnostic errors. Furthermore, the diagnosis system for home appliances can provide more accurate fault diagnosis service so as to improve satisfaction and trustworthiness of users.
Description
Technical field
The utility model relates to the electric household appliance diagnostic system, particularly relate to the signal tone of a kind of utilization from electric household appliance output, by 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 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 by the output device that is provided with, for example by 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 taking place in electric household appliance under the unusual situation, the user will be by 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 at 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 exporting 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, will the situation of 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 by set communicator, and still, this need construct other communication network.
Put down in writing among the license US5987105 and utilized telephone network that the fault message of electric household appliance is converted to the signal tone of audio-band, and sent it technology of to service centre etc. by telephone set.
But, in order in electric household appliance, to utilize voice output information, send sound to service centre, and whether diagnose the state of electric household appliance and fault by phonetic analysis by telephone network, need be when analyzing sound and diagnosing to the accurate detection of data.
The utility model content
The purpose of this utility model is to overcome the prior art above shortcomings, improve by research, a kind of electric household appliance diagnostic system is provided, in the utility model, 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 utility model provides is: electric household appliance diagnostic system of the present utility model is characterized in that comprise with lower member: 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.
Aforesaid electric household appliance diagnostic system is characterized in that, comprises signal detecting part and diagnosis portion in the above-mentioned diagnosis server.
Aforesaid electric household appliance diagnostic system, it is characterized in that: above-mentioned signal detecting part forms and includes the first header candidate group and the second header candidate group, and the above-mentioned first header candidate group's header candidate and the above-mentioned second header candidate group's header candidate is mated one to one.
Aforesaid electric household appliance diagnostic system, it is characterized in that, comprise in the above-mentioned electric household appliance with lower member: 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.
Compared with prior art, the beneficial effects of the utility model are: by detect header in the signal that receives accurately from electric household appliance, can effectively detect the data of the information that includes substantial electric household appliance, thereby can realize analyzing rapidly and diagnosing, simultaneously, can prevent the diagnostic error that causes because of inaccurate data, thereby can improve accuracy 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 among the utility model one embodiment;
Fig. 2 (a) is the electric household appliance structural representation among the utility model one embodiment;
Fig. 2 (b) is the schematic diagram of the relevant structure of the relation of electric household appliance and service centre;
Fig. 3 (a) is the block diagram that illustrates the structure of device for processing washings 1;
Fig. 3 (b) is the block diagram of structure that illustrates the diagnosis server of service centre;
Fig. 4 is the illustration figure that simple graph illustrates the structure of electric household appliance among the utility model one embodiment and the signal tone in the diagnosis server;
Fig. 5 is the flow chart that illustrates the detection of preamble method of the diagnosis server in the utility model;
Fig. 6 illustrates the illustration figure that the header candidate group corresponding with the detection of preamble among Fig. 5 extracts example;
Fig. 7 is the illustration figure that illustrates an example of the detection of preamble of giving by coupling between the header candidate among Fig. 5 and weighted value;
Fig. 8 is the illustration figure of an example of header candidate that illustrates the detection of preamble of the diagnosis server that is used for the utility model one embodiment;
Fig. 9 is the flow chart of another embodiment that illustrates the detection of preamble method of the diagnosis server in the utility model;
Figure 10 is the illustration figure 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: diagnosis portion
Embodiment
Below, with reference to the accompanying drawings, the embodiment in the utility model is described.
Fig. 1 is the structure chart of structure of diagnostic system that comprises the electric household appliance of the embodiment in the utility model.
With reference to Fig. 1, the diagnostic system in the utility model, it comprises with lower member: 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 for the output signal sound.
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 by 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 by 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 in the utility model is not simple output products information, but product information is converted to 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) by telephone network when unusual.
The sound signal storage of the electric household appliance that the operator of service centre will receive by 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 by 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 by set communication network, for example, when being connected to service centre by telephone network, can judging the state and the reply of electric household appliance 1 by 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 in the utility model 1.But the utility model is not to be defined in this, and the utility model 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 of following structure, and with product information with the output of set signal tone, thereby state by diagnosis server diagnosis electric household appliance 1 and fault are whether.
Fig. 2 is the schematic diagram of the relevant structure of the relation of electric household appliance among the utility model one embodiment and electric household appliance and service centre.
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 the drainage arrangement (not shown) of outside.
Comprise with lower member in the above-mentioned housing 111: enclosure body 112; Be arranged at the case lid 113 of enclosure body 112 and combination; 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 member 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.
Be provided with a plurality of operation keyss 117 in control panel 116, aforesaid operations key 117 is used for the running of operated wash thing processing unit 1.And, also be provided with lower member 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 product information is converted to acoustic signal by converter section 60 with the input signal output order, and by sound equipment efferent 72 with set signal tone output acoustic signal.
At this moment, the signal tone 100 by sound equipment efferent 72 output will send service centre 200 to by 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 be that example describes with the situation of telephone set, portable terminal.
Fig. 3 is the block diagram that illustrates the structure of electric household appliance among the utility model one embodiment and diagnosis server, 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 of Gou Chenging will comprise that also following control structure operates as previously mentioned, 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 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 by 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 by 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 during operation control.
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 received signal output orders, and make 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 the output signal sound.
The setting that input part 21 will receive as input unit and signal tone output is corresponding, that is, input part 21 receptions are used to set the set point of size etc. of signal tone of method, the output of output signal sound.
At this moment, input units such as operating portion 22 and input part 21 20 can be by button, circular switch (domeswitch), 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 by 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 be linked into converter section 60, the concurrent converter section 60 of sening as an envoy to is converted to product information the control signal of set acoustic signal, 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 is converted to the set acoustic signal that is used for signal tone output, wherein, converter section 60 will be converted to the analog signal of set frequency band as the product information of digital signal, when conversion of signals, with some modes of utilizing in frequency shift (FS) mode, amplitude excursion mode, the phase deviation mode, and product information is converted to acoustic signal.
Wherein, the frequency shift (FS) mode is the mode of the signal that be converted to set frequency corresponding with the data value of product information, in addition, the amplitude excursion mode is the size of the transition amplitude corresponding with data value, make its different mode mutually, and the phase deviation mode is the data value switching signal according to product information, makes phase place different mode mutually.
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 by operating portion 22 input signal output orders the time, will operate once more, and export set signal tone.
At this, except comprising above-mentioned sound equipment efferent 72 and display part 71, also can comprise the bulb lighting or glimmer, vibrating elements etc. in the efferent 70.But, will save explanation below to this.
The set signal tone of device for processing washings 1 output that constitutes as mentioned above, and as described below, will transmit the product information of device for processing washings 1 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 by 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 member: Department of Communication Force 220; Signal processing part 230; Data portion 240; Input and output portion 270; Signal detecting part 250; Clock generating unit 280; Diagnosis portion 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 by 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 by input unit or when collecting mail instruction, will be by telephone network received signal sound 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 comprises in the signal tone of output from electric household appliance 1 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 the importance degree corresponding with everybody (bit) of header.
At this, data portion 240 is imported, is managed and upgrade by 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 by mutual convention, to carry out data transaction by identical conversion of signals system.And signal processing part 230 will be converted to digital signal as the signal tone of the analog signal of set frequency band by 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.
Owing in the process that signal tone transmits distorted signals or loss of data may take place, 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 by with reference data 241 in storage the benchmark header coupling (matcning) and the weighted value of header candidate adopted detect header.At this moment, the number of the header candidate that comprises among the header candidate group can change according to the size of header, the size of data, the unit corresponding with selected header candidate.
The signal detecting part 250 selected first header candidate groups, and extract the second header candidate group corresponding with next time with header and data big or small corresponding, after n the header candidate that comprises among each candidate group mated mutually, 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 finish 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 by aforesaid mode, and it can detect header by 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 group relevant with header, utilization is mated and weighted value continue to carry out repeatedly by 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.
Diagnosis portion 260 will judge whether are the state of electric household appliance 1 and fault, and the reason of fault is analyzed to analyze, utilize the product information that comprises in the data by signal detecting part 250 detected data, and the output diagnostic result.
Master control part 210 will be by the transmitting-receiving of Department of Communication Force 220 control datas, and flowing by input and output portion 270 control datas, simultaneously, the operation of control signal handling part 230, include the signal tone of the product information of electric household appliance with conversion process, and the operation of control signal test section 250 is to detect data.
And, master control part 210 is to each structure member access control instruction, make diagnosis portion 260 utilize detected data that electric household appliance is carried out failure diagnosis, master control part 210 will be controlled the diagnostic result by 270 output diagnosis portions 260 of input and output portion, or transmit by Department of Communication Force 220.
Fig. 4 is the illustration figure that simple graph illustrates the structure of the electric household appliance of the utility model one embodiment and the signal tone in the diagnosis server.
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 sound.
At this, the control part 10 of electric household appliance makes packets of information (packet) the constituting by a plurality of data and a plurality of headers of signal tone, 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 by 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 by the coupling and the weighted value of header candidate.
At this moment, signal detecting part 250 can extract first and second header candidate group, and extracts header by each candidate group's coupling and weighted value employing.
For example, extract first header candidate group relevant and the second header candidate group relevant respectively with second time (T2) with the very first time (T1), with two man-to-man couplings of candidate group, 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 by 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 mates, 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.
Diagnosis portion 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 among the utility model one embodiment that constitute as mentioned above be described.Below, will be that example describes with the device for processing washings in the electric household appliance.
Below, will carry out simple explanation to 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 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 by weighted value, when detection of preamble is finished, signal detecting part 250 utilizes the detection of preamble data that are detected, and the data of 260 pairs of collections of diagnosis portion 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.
The analysis result of the product information that comprises in the data of diagnosis portion 260 according to collection is carried out the failure diagnosis to electric household appliance, master control part 210 transmits the diagnostic result of diagnosis portion 260 by Department of Communication Force 220, or export by input and output portion 270, at this moment, diagnosis server sends diagnostic result to 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 by 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 in the utility model.
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 group S 320.
Each is a benchmark to signal detecting part 250 with a plurality of header candidates of being contained in the first header candidate group, considers the size of header and the size of data, generates the header candidate of n next second time from bit stream, and extracts the second header candidate group S330.
Each mates S340 one to one with a plurality of header candidates of comprising among a plurality of header candidates that comprise among the first header candidate group and the second header candidate group.
Signal detecting part 250 will be given weighted value S350 to the position of being mated according to the first header candidate group and the second header candidate group'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 group 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 chosen header, signal detecting part 250 is stored in detected data in the data portion 240 as electric household appliance data 244.
Above-mentioned header candidate group's coupling and the weighted value process of giving will be carried out repeatedly, all be detected (S310 to S380) until the required data of diagnosis.
As the required data of diagnosis S380 when all being detected, diagnosis portion 260 will analyze data, with to the state of electric household appliance, whether fault reaches failure cause diagnoses S390.
Master control part 210 transmits diagnostic result as previously mentioned by Department of Communication Force, or exports S400 by input and output portion.
Fig. 6 illustrates the illustration figure that extracts example according to the header candidate group 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 group (151 to 155), and, with the size of predefined header and big or small corresponding selected a plurality of header candidates of data, and extract the second header candidate group (161 to 165) for second time.
Signal detecting part 250 mates respectively one to one to the header candidate that comprises among first and second header candidate group (151 to 155) (161 to 165), promptly, the first header candidate group's first header candidate 151 and the second header candidate group's the first header candidate 161 are mated, and whether judge its unanimity by each position.
Predefined weighted value is given in the position to consistent that the matching result of signal detecting part 250 and each header candidate is corresponding, 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 illustration figure that illustrates an example of the detection of preamble of giving by coupling between the header candidate among Fig. 5 and weighted value, and Fig. 7 is an example that forms two candidate groups and detect header according to weighted value.
Wherein, the header candidate that illustrates among Fig. 7 is different with header candidate among Fig. 8 described later, still, will continue to use the mode of Fig. 8 described later on the method for selected header from bit stream.
Shown in Fig. 7 (a), the first header candidate 151 the first header candidate group is ' 01101 ', the second header candidate group's the first header candidate 161 is under ' 01100 ' the situation, because first, second, the 3rd, the 4th position be consistent with each other, will give 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 group is ' 01010 ', the second header candidate group's the second header candidate 162 is under ' 01110 ' the situation, because first, second, the 4th, the 5th position be consistent with each other, will give 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 group is ' 10111 ', the second header candidate group's the 3rd header candidate 163 is under ' 10101 ' the situation, because first, second, the 3rd, the 5th position be consistent with each other, will give 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 group's the 4th header candidate 154 is that ' 01110 ', the second header candidate group'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 group is ' 11100 ', the second header candidate group's the 5th header candidate 165 is under ' 01001 ' the situation, because second, the 4th position is consistent with each other, to give corresponding with it weighted value 3,3, weighted value will become 6.
As mentioned above, signal detecting part 250 compares the first header candidate group's header candidate (151 to 155) and the second header candidate group'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 as 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, diagnosis portion 260 analyzes 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 is the illustration figure of an example of the header candidate of the detection of preamble that is used for diagnosis server among the utility model one embodiment.Wherein, Fig. 8 (a) is the schematic diagram that illustrates an example of bit stream, and Fig. 8 (b) is the schematic diagram that illustrates header candidate group'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 group 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, select the 3rd, the 4th, the 5th header candidate 283,284,285 by the way, and n header candidate is chosen to be a header candidate group (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, the first header candidate can 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 in the utility model, and Fig. 9 is the detection of preamble method that has under the situation of benchmark header.
With reference to Fig. 9, signal detecting part 250 will generate a plurality of header candidates, and extract the first header candidate group S420 when the detection of preamble of the bit stream of importing being carried out in the very first time.
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 group.
Signal detecting part 250 mates S430 with benchmark header and a plurality of header candidates of the first header candidate group 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 ' 01110 ', 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 high header candidate of selection position matching rate height, weighted value 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 mates, 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 group, and it is chosen to be strong header S480, with the strong header of being selected again is the header that benchmark detected for second time once more, and header and the benchmark header of second time compared S460, S470.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 mentioned above, and mates 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 finally is defined as the header of the very first time, and end is for the detection of preamble S490 of the very first time, when the strong header of being selected again 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 diagnosis portion are analyzed, with to the state of electric household appliance, whether fault reaches failure cause diagnoses S520.
Master control part 210 is exported diagnostic result or transmit S530 as previously mentioned.
Figure 10 is the illustration figure 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 group 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, select the 3rd, the 4th, the 5th header candidate 283,284,285 by the way, and n header candidate is chosen to be a header candidate group (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 weighted values that will be set to the first header candidate.
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, under the situation that in the process that signal transmits, distorted signals takes place or lose, when not existing as 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, detect 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, it can be chosen to be strong header, and is that benchmaring goes out the header for second time with selected strong header.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 13 at the header of second time for its weighted value under ' 01110 ' the situation, the 7th header candidate 287 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 at the header of second time for its weighted value under ' 10101 ' 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 be speculated as in the 3rd position in the header of the very first time and will have mistake.
At this moment, the header candidate of the very first time and the weighted value of the header candidate of second time can be carried out worthwhile and selected header, form according to header, selected header may change, but by reducing weighted value, and in header identification, improve weighted value in the important position and it can be eliminated in the part that easily distorted signals takes place or lose.
Thus, in electric household appliance diagnostic system of the present utility model, the relation between the header detects 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 diagnostic error, and can realize diagnosing fast and accurately owing to can detect data accurately.
The utility model is illustrated according to embodiment, should be appreciated that the foregoing description does not limit the utility model in any form, and all employings are equal to replaces or technical scheme that the equivalent transformation mode is obtained, all drops within the protection range of the present utility model.
Claims (4)
1. an electric household appliance diagnostic system is characterized in that, comprises with lower member: 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.
2. electric household appliance diagnostic system according to claim 1 is characterized in that, comprises signal detecting part and diagnosis portion in the above-mentioned diagnosis server.
3. electric household appliance diagnostic system according to claim 2, it is characterized in that: above-mentioned signal detecting part includes the first header candidate group and the second header candidate group, and the above-mentioned first header candidate group's header candidate and the above-mentioned second header candidate group's header candidate is mated one to one.
4. electric household appliance diagnostic system according to claim 1, it is characterized in that, comprise in the above-mentioned electric household appliance with lower member: 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.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106527220A (en) * | 2015-09-11 | 2017-03-22 | Lg电子株式会社 | Mobile terminal and home appliance |
| CN106527219A (en) * | 2015-09-11 | 2017-03-22 | Lg电子株式会社 | Mobile terminal and home appliance |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106527220A (en) * | 2015-09-11 | 2017-03-22 | Lg电子株式会社 | Mobile terminal and home appliance |
| CN106527219A (en) * | 2015-09-11 | 2017-03-22 | Lg电子株式会社 | Mobile terminal and home appliance |
| US10397016B2 (en) | 2015-09-11 | 2019-08-27 | Lg Electronics Inc. | Mobile terminal and artificial intelligence home appliance |
| CN106527220B (en) * | 2015-09-11 | 2020-08-11 | Lg电子株式会社 | Mobile terminal and household appliance |
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