CN110365429A - Detection method, device and system - Google Patents
Detection method, device and system Download PDFInfo
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- CN110365429A CN110365429A CN201910649583.3A CN201910649583A CN110365429A CN 110365429 A CN110365429 A CN 110365429A CN 201910649583 A CN201910649583 A CN 201910649583A CN 110365429 A CN110365429 A CN 110365429A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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Abstract
The invention discloses a kind of detection methods, device and system.Wherein, this method comprises: obtaining the appliance information and channel state information of the electric appliance of access Wireless Communication Equipment, wherein channel state information is extracted from the wireless network signal of electric appliance by Wireless Communication Equipment；The ageing information of each element in electric appliance is determined according to appliance information and channel state information.The present invention solves Wireless Communication Equipment in the related technology and is only used for communication interaction, the technical problem for causing the utilization rate of Wireless Communication Equipment not high.
Description
Technical field
The present invention relates to ageing management fields, in particular to a kind of detection method, device and system.
Background technique
It is well known that Wireless Communication Equipment plays a crucial role in signal transmission.In recent years, with channel radio
Letter technology tends to be mature, and more scholars begin to focus on the application other than data transmission.Therefore, the extremely wide WiFi letter of coverage area
Number great concern is caused, other than daily data-transformation facility, WiFi signal can also teach that WiFi channel
Relevant information.However, in the smart home field for generally using Wireless Communication Equipment to realize Internet of Things, the application of Wireless Communication Equipment
Scene is limited only to common communication interaction, such as APP control, failure report.
It is only used for communication interaction for Wireless Communication Equipment in the related technology, leads to the utilization rate of Wireless Communication Equipment not
High technical problem, currently no effective solution has been proposed.
Summary of the invention
The embodiment of the invention provides a kind of detection method, device and system, at least to solve in the related technology wireless
The network equipment is only used for communication interaction, the technical problem for causing the utilization rate of Wireless Communication Equipment not high.
According to an aspect of an embodiment of the present invention, a kind of detection method is provided, comprising: obtain access wireless network and set
The appliance information and channel state information of standby electric appliance, wherein channel state information is by Wireless Communication Equipment from the wireless of electric appliance
It is extracted in network signal；The ageing information of each element in electric appliance is determined according to appliance information and channel state information.
Optionally, above-mentioned before obtaining the appliance information and channel state information of electric appliance of access Wireless Communication Equipment
Method further include: establish the database of different appliance informations, wherein the aging character data of each element are prestored in database.
Optionally, the ageing information of each element in electric appliance is determined according to appliance information and channel state information, comprising: according to
Appliance information determines target database；De-redundancy processing is carried out to channel state information, obtains pretreatment information；Pretreatment is believed
Breath carries out feature extraction, obtains characteristic parameter；Characteristic parameter is matched with the aging character data in target database, is obtained
To ageing information.
Optionally, de-redundancy processing is carried out to channel state information, obtains pretreatment information, comprising: pass through low-pass filtering
Device does process of convolution per the data in channel two-by-two in channel state information, obtains denoising data；By dimension-reduction algorithm to going
Data of making an uproar carry out dimension-reduction treatment, obtain pretreatment information.
Optionally, characteristic parameter includes fisrt feature parameter and second feature parameter, carries out feature to pretreatment information and mentions
It takes, obtains characteristic parameter, comprising: frequency resolution is carried out to pretreatment information by wavelet transform, obtains spectrogram；It extracts
The wavelet coefficient of each frequency range in spectrogram, as fisrt feature parameter；The upper limit of each sampling instant is cut in estimated spectral figure
Only frequency and centre frequency, as second feature parameter.
Optionally, it is determined in electric appliance after the ageing information of each element according to appliance information and channel state information, side
Method further include: ageing information is sent to prompt equipment.
According to another aspect of an embodiment of the present invention, a kind of detection method is additionally provided, comprising: obtain the wireless network of electric appliance
Network signal；Extract the channel state information in wireless network signal；The appliance information for uploading channel state information and electric appliance extremely takes
Business device, wherein server determines the ageing information of each element in electric appliance according to channel state information and appliance information.
According to another aspect of an embodiment of the present invention, a kind of detection device is additionally provided, comprising: first obtains module, uses
In the appliance information and channel state information of the electric appliance for obtaining access Wireless Communication Equipment, wherein channel state information is by wireless
The network equipment is extracted from the wireless network signal of electric appliance；Determining module, for true according to appliance information and channel state information
Determine the ageing information of each element in electric appliance.
According to another aspect of an embodiment of the present invention, a kind of detection device is additionally provided, comprising: second obtains module, uses
In the wireless network signal for obtaining electric appliance；Extraction module, for extracting the channel state information in wireless network signal；Upload mould
Block, for uploading the appliance information of channel state information and electric appliance to server, wherein server according to channel state information and
Appliance information determines the ageing information of each element in electric appliance.
According to another aspect of an embodiment of the present invention, a kind of storage medium is additionally provided, storage medium includes the journey of storage
Sequence, wherein equipment where control storage medium executes above-mentioned detection method in program operation.
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided, processor is used to run program,
In, program executes above-mentioned detection method when running.
According to another aspect of an embodiment of the present invention, a kind of detection system is additionally provided, comprising: Wireless Communication Equipment is used
In the wireless network signal for obtaining electric appliance, the channel state information in wireless network signal is extracted, and uploads channel state information
With the appliance information of electric appliance to server；Server, for determining each member in electric appliance according to channel state information and appliance information
The ageing information of part.
In embodiments of the present invention, the appliance information and channel state information of the electric appliance of access Wireless Communication Equipment are obtained,
Wherein, channel state information is extracted from the wireless network signal of electric appliance by Wireless Communication Equipment；According to appliance information and channel
Status information determines the ageing information of each element in electric appliance.Compared with prior art, above scheme is by extracting the wireless of electric appliance
Channel state information in network signal determines the aging journey of each constituent element in electric appliance using the variation of channel state information
Degree, has achieved the purpose that the ageing information of clear electric appliance, and then the Wireless Communication Equipment solved in the related technology is only used for leading to
News interaction, the technical problem for causing the utilization rate of Wireless Communication Equipment not high.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow diagram of according to embodiments of the present invention 1 optional detection method；
Fig. 2 is a kind of principle of according to embodiments of the present invention 1 optional Wireless Communication Equipment perception air-conditioning ageing information
Figure；
Fig. 3 is a kind of flow diagram of according to embodiments of the present invention 1 optional server process channel state information；
Fig. 4 is a kind of flow diagram of according to embodiments of the present invention 2 optional detection method；
Fig. 5 is a kind of schematic diagram of according to embodiments of the present invention 3 optional detection device；And
Fig. 6 is a kind of schematic diagram of according to embodiments of the present invention 4 optional detection device.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of detection method is provided from the angle of server, needs to illustrate
It is that step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions,
Also, although logical order is shown in flow charts, and it in some cases, can be to be different from sequence execution herein
Shown or described step.
Fig. 1 is detection method according to an embodiment of the present invention, as shown in Figure 1, this method comprises the following steps:
Step S102 obtains the appliance information and channel state information of the electric appliance of access Wireless Communication Equipment, wherein channel
Status information is extracted from the wireless network signal of electric appliance by Wireless Communication Equipment.
In a kind of optinal plan, above-mentioned Wireless Communication Equipment can be WiFi module, which can be configured at electricity
In device, for sending and receiving signal；Above-mentioned electric appliance can be any electric appliance with Wireless Communication Equipment, such as Intelligent air
Tune, intelligent sound box, smart television etc.；Above-mentioned appliance information can be the model of electric appliance.
Due to environment minor change can the reception waveform to Wireless Communication Equipment generate certain interference, transmitter (example
Such as router) radio wave of transmitting propagates by direct projection, reflection, scattering mulitpath, and it is (such as wireless in signal receiver
The network equipment) at formed multipath superposed signal, will reflect the situation of change of environment.
Channel state information (Channel State Information, CSI) belong to physical layer (Physical Layer,
PHY fine granularity information), can measure the phase and amplitude of each subcarrier, more enrich what subcarrier information was shown,
Multi-path resolved ability is shown to a certain extent, especially within the scope of non line of sight, perceives out the small variation of signal, because
This, channel state information has the characteristics that highly sensitive and sensing region is wide.The present invention just allows for above-mentioned factor, by mentioning
The channel state information in wireless network signal is taken, to perceive the minor change of each constituent element inside electric appliance.
In above-mentioned steps, Wireless Communication Equipment is getting the wireless network signal by electric appliance direct projection, reflection, scattering
Afterwards, channel state information therein, i.e. information on extraction WIFI channel sub-carriers waveform are extracted by software tool first,
And the appliance information of the electric appliance and channel state information are sent to server.
Step S104 determines the ageing information of each element in electric appliance according to appliance information and channel state information.
In a kind of optinal plan, above-mentioned ageing information can be degree of aging, the aging speed etc. of each element in electric appliance, always
Change degree can be indicated with the form of percentage, such as compressor degree of aging 60%, evaporator degree of aging 30% etc..
In an alternative embodiment, server locates the channel state information that Wireless Communication Equipment uploads in advance
The operations such as reason, such as filtering, removal abnormal point, extraction characteristic value, then by preset algorithm corresponding with appliance information to right
Treated, and information is identified, determines the ageing information of each element.
In another alternative embodiment, channel state information and electric appliance letter that server uploads Wireless Communication Equipment
Breath is pre-processed, such as the operation such as filtering, removal abnormal point, extraction characteristic value, finally by neural network scheduling algorithm to place
Information after reason is identified, determines the ageing information of each element.
It should be noted that the server for executing the present embodiment method can be cloud server, or local clothes
Business device.If it is local server, can be located in electric appliance.
Fig. 2 is the schematic diagram according to a kind of optional Wireless Communication Equipment perception air-conditioning ageing information of the present embodiment.Such as
Shown in Fig. 2, air-conditioning panel is influenced by ceiling leak for a long time, and rate of ageing is very fast.The radio wave of router transmitting is by empty
Straightening the mulitpaths such as penetrates, reflects, scattering and propagating, and multipath superposed signal is formed at the Wireless Communication Equipment of air-conditioning.Wireless network
Network equipment is extracted channel status therein by software tool first and is believed after getting the wireless network signal of this superposition
Breath, i.e. information on extraction WIFI channel sub-carriers waveform, and together by the appliance information of the electric appliance and channel state information
It is sent to cloud server.Cloud server carries out processing identification to channel state information according to the appliance information of electric appliance, determines
The air-conditioning panel degree of aging of electric appliance is serious out, up to 60%, notifies user to repair immediately.
In embodiments of the present invention, the appliance information and channel state information of the electric appliance of access Wireless Communication Equipment are obtained,
Wherein, channel state information is extracted from the wireless network signal of electric appliance by Wireless Communication Equipment；According to appliance information and channel
Status information determines the ageing information of each element in electric appliance.Compared with prior art, above scheme is used believes comprising channel status
The Wireless Communication Equipment for ceasing detecting function, the channel state information in wireless network signal by extracting electric appliance, utilizes channel
The variation of status information determines the degree of aging of each constituent element in electric appliance, has achieved the purpose that the ageing information of clear electric appliance,
And then the Wireless Communication Equipment solved in the related technology is only used for communication interaction, causes the utilization rate of Wireless Communication Equipment not high
The technical issues of.
Optionally, in the appliance information and channel status letter of the electric appliance for executing step S102 acquisition access Wireless Communication Equipment
Before breath, the method for the present embodiment can also include:
Step S101, establishes the database of different appliance informations, wherein the aging character of each element is prestored in database
Data.
Since the constituent element of different classes of, different model electric appliance may be different, so implementing the present embodiment
Before method, server first establishes the database of different appliance informations, is prestored in each database with identical appliance information
The aging character data of element.
In an alternative embodiment, Fig. 3 shows the flow diagram of server process channel state information.Such as figure
Shown in 3, step S104 determines the ageing information of each element in electric appliance according to appliance information and channel state information, specifically can wrap
Include following steps:
Step S1041 determines target database according to appliance information.
Step S1042 carries out de-redundancy processing to channel state information, obtains pretreatment information.
Step S1043 carries out feature extraction to pretreatment information, obtains characteristic parameter.
In a kind of optinal plan, features described above parameter can be the characteristic parameter of compressor, the characteristic parameter, cold of evaporator
Characteristic parameter, characteristic parameter of panel of condenser etc..
Step S1044 matches characteristic parameter with the aging character data in target database, obtains aging letter
Breath.
Server is by the aging character number of the characteristic parameter extracted and counter element in the database of corresponding air-conditioning type number
According to being matched, matching obtains the degree of aging of each element of the air-conditioning.
Optionally, step S1042 carries out de-redundancy processing to channel state information, obtains pretreatment information, specifically can be with
The following steps are included:
Step S10421 is done at convolution in channel state information per the data in channel two-by-two by low-pass filter
Reason obtains denoising data.
In a kind of optinal plan, above-mentioned low-pass filter can be hamming window low-pass filter.
In above-mentioned steps, using hamming window low-pass filter to every antenna two-by-two in a string of channel state information data flows
Between channel link in data do convolution, carry out preliminary denoising.
Step S10422 carries out dimension-reduction treatment to denoising data by dimension-reduction algorithm, obtains pretreatment information.
In a kind of optinal plan, above-mentioned dimension-reduction algorithm can be Principal Component Analysis Algorithm.
Data more for dimension, it is necessary first to which the thing done is exactly that will count under the premise of guaranteeing that data are essential as far as possible
According to dimension reduce.Principal component analysis (Principal Components Analysis, PCA) algorithm is may have correlation
Property the unrelated low-dimensional variable of higher-dimension variable synthesizing linear, new low-dimensional data rally retains the variable of initial data as far as possible.
Dimensionality reduction can be carried out to denoising data by Principal Component Analysis, further achieve the purpose that remove redundant data.
Optionally, characteristic parameter includes fisrt feature parameter and second feature parameter, step S1043 to pretreatment information into
Row feature extraction, obtains characteristic parameter, can specifically include following steps:
Step S10431 carries out frequency resolution to pretreatment information by wavelet transform, obtains spectrogram.
Step S10432 extracts the wavelet coefficient of each frequency range in spectrogram, as fisrt feature parameter.
In above-mentioned steps, frequency resolution is carried out to the pretreatment information in a period of time by wavelet transform, is obtained
Then multiple frequency ranges extract the wavelet coefficient of each frequency range, as fisrt feature parameter.
Step S10433, the upper cut-off frequency and centre frequency of each sampling instant in estimated spectral figure, as second
Characteristic parameter.
In a kind of optinal plan, above-mentioned upper cut-off frequency and centre frequency can be estimated using percentage algorithm.
Percentage (Percentiles) algorithm can carry out operation to the spectrogram of movement, estimate each sampling instant
The upper limit (upper) cutoff frequency and center (center) frequency.
Optionally, the aging of each element in electric appliance is determined according to appliance information and channel state information in execution step S104
After information, the method for the present embodiment can also include:
Ageing information is sent to prompt equipment by step S105.
In a kind of optinal plan, above-mentioned prompt equipment can be the mobile terminal of user, or Wireless Communication Equipment
The display panel of the electric appliance at place.
It after the ageing information of each element, is sent to electricity by Wireless Communication Equipment in determining electric appliance by server
The master controller of device is shown by main controller controls display panel, or the mobile terminal of user is triggered by master controller,
Inform the ageing information of each element of user.
In above-described embodiment, the appliance information and channel state information of the electric appliance of access Wireless Communication Equipment are obtained, wherein
Channel state information is extracted from the wireless network signal of electric appliance by Wireless Communication Equipment；Believed according to appliance information and channel status
Cease the ageing information for determining each element in electric appliance.Compared with prior art, above scheme is used detects comprising channel state information
The Wireless Communication Equipment of function, the channel state information in wireless network signal by extracting electric appliance, is believed using channel status
The variation of breath determines the degree of aging of each constituent element in electric appliance；It, can be convenient by establishing the database of different appliance informations
Ground inquires the ageing information of respective element；By carrying out the operation such as de-redundancy processing, feature extraction, side to channel state information
Just aging character data are inquired.The present invention can not only specify the ageing information of electric appliance, additionally it is possible to which the self-test for realizing electric appliance avoids
The abnormal work of electric appliance, enhance electric appliance using safe, promote user experience, and then solve wireless network in the related technology
Equipment is only used for communication interaction, the technical problem for causing the utilization rate of Wireless Communication Equipment not high.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of detection method is provided from the angle of Wireless Communication Equipment, Fig. 4 is
Detection method according to an embodiment of the present invention, as shown in figure 4, this method comprises the following steps:
Step S402 obtains the wireless network signal of electric appliance.
In a kind of optinal plan, above-mentioned electric appliance can be any electric appliance with Wireless Communication Equipment, such as intelligent air condition,
Intelligent sound box, smart television etc.；The equipment for obtaining above-mentioned wireless network signal can be WiFi module, which can match
It is placed in electric appliance, for sending and receiving signal.
Step S404 extracts the channel state information in wireless network signal.
Due to environment minor change can the reception waveform to Wireless Communication Equipment generate certain interference, transmitter (example
Such as router) radio wave of transmitting propagates by direct projection, reflection, scattering mulitpath, and it is (such as wireless in signal receiver
The network equipment) at formed multipath superposed signal, will reflect the situation of change of environment.
Channel state information (Channel State Information, CSI) belong to physical layer (Physical Layer,
PHY fine granularity information), can measure the phase and amplitude of each subcarrier, more enrich what subcarrier information was shown,
Multi-path resolved ability is shown to a certain extent, especially within the scope of non line of sight, perceives out the small variation of signal, because
This, channel state information has the characteristics that highly sensitive and sensing region is wide.The present invention just allows for above-mentioned factor, by mentioning
The channel state information in wireless network signal is taken, to perceive the minor change of each constituent element inside electric appliance.
In above-mentioned steps, Wireless Communication Equipment is getting the wireless network signal by electric appliance direct projection, reflection, scattering
Afterwards, channel state information therein, i.e. information on extraction WIFI channel sub-carriers waveform are extracted by software tool first.
Step S406 uploads the appliance information of channel state information and electric appliance to server, wherein server is according to channel
Status information and appliance information determine the ageing information of each element in electric appliance.
In a kind of optinal plan, above-mentioned ageing information can be degree of aging, the aging speed etc. of each element in electric appliance, always
Change degree can be indicated with the form of percentage, such as compressor degree of aging 60%, evaporator degree of aging 30% etc.；It is above-mentioned
Server can be cloud server, or local server.If it is local server, can be located in electric appliance.
In an alternative embodiment, server locates the channel state information that Wireless Communication Equipment uploads in advance
The operations such as reason, such as filtering, removal abnormal point, extraction characteristic value, then by preset algorithm corresponding with appliance information to right
Treated, and information is identified, determines the ageing information of each element.
In another alternative embodiment, channel state information and electric appliance letter that server uploads Wireless Communication Equipment
Breath is pre-processed, such as the operation such as filtering, removal abnormal point, extraction characteristic value, finally by neural network scheduling algorithm to place
Information after reason is identified, determines the ageing information of each element.
Optionally, before the wireless network signal for executing step 402 acquisition electric appliance, the method for the present embodiment can also be wrapped
It includes:
Step S401, the database of different appliance informations is established by server, wherein each element is prestored in database
Aging character data.
Since the constituent element of different classes of, different model electric appliance may be different, so implementing the present embodiment
Before method, server first establishes the database of different appliance informations, is prestored in each database with identical appliance information
The aging character data of element.
Optionally, server according to channel state information and appliance information determines the old of each element in electric appliance in step S406
Change information, can specifically include following steps:
Step S4061 determines target database according to appliance information.
Step S4062 carries out de-redundancy processing to channel state information, obtains pretreatment information.
Step S4063 carries out feature extraction to pretreatment information, obtains characteristic parameter.
In a kind of optinal plan, features described above parameter can be the characteristic parameter of compressor, the characteristic parameter, cold of evaporator
Characteristic parameter, characteristic parameter of panel of condenser etc..
Step S4064 matches characteristic parameter with the aging character data in target database, obtains aging letter
Breath.
Server is by the aging character number of the characteristic parameter extracted and counter element in the database of corresponding air-conditioning type number
According to being matched, matching obtains the degree of aging of each element of the air-conditioning.
Optionally, step S4062 carries out de-redundancy processing to channel state information, obtains pretreatment information, specifically can be with
The following steps are included:
Step S40621 is done at convolution in channel state information per the data in channel two-by-two by low-pass filter
Reason obtains denoising data.
In a kind of optinal plan, above-mentioned low-pass filter can be hamming window low-pass filter.
In above-mentioned steps, using hamming window low-pass filter to every antenna two-by-two in a string of channel state information data flows
Between channel link in data do convolution, carry out preliminary denoising.
Step S40622 carries out dimension-reduction treatment to denoising data by dimension-reduction algorithm, obtains pretreatment information.
In a kind of optinal plan, above-mentioned dimension-reduction algorithm can be Principal Component Analysis Algorithm.
Data more for dimension, it is necessary first to which the thing done is exactly that will count under the premise of guaranteeing that data are essential as far as possible
According to dimension reduce.Principal component analysis (Principal Components Analysis, PCA) algorithm is may have correlation
Property the unrelated low-dimensional variable of higher-dimension variable synthesizing linear, new low-dimensional data rally retains the variable of initial data as far as possible.
Dimensionality reduction can be carried out to denoising data by Principal Component Analysis, further achieve the purpose that remove redundant data.
Optionally, characteristic parameter includes fisrt feature parameter and second feature parameter, step S4063 to pretreatment information into
Row feature extraction, obtains characteristic parameter, can specifically include following steps:
Step S40631 carries out frequency resolution to pretreatment information by wavelet transform, obtains spectrogram.
Step S40632 extracts the wavelet coefficient of each frequency range in spectrogram, as fisrt feature parameter.
In above-mentioned steps, frequency resolution is carried out to the pretreatment information in a period of time by wavelet transform, is obtained
Then multiple frequency ranges extract the wavelet coefficient of each frequency range, as fisrt feature parameter.
Step S40633, the upper cut-off frequency and centre frequency of each sampling instant in estimated spectral figure, as second
Characteristic parameter.
In a kind of optinal plan, above-mentioned upper cut-off frequency and centre frequency can be estimated using percentage algorithm.
Percentage (Percentiles) algorithm can carry out operation to the spectrogram of movement, estimate each sampling instant
The upper limit (upper) cutoff frequency and center (center) frequency.
Optionally, the old of each element in electric appliance is determined according to appliance information and channel state information in executing step S406
After changing information, the method for the present embodiment can also include:
Ageing information is sent to prompt equipment by server by step S407.
In a kind of optinal plan, above-mentioned prompt equipment can be the mobile terminal of user, or Wireless Communication Equipment
The display panel of the electric appliance at place.
It after the ageing information of each element, is sent to electricity by Wireless Communication Equipment in determining electric appliance by server
The master controller of device is shown by main controller controls display panel, or the mobile terminal of user is triggered by master controller,
Inform the ageing information of each element of user.
It should be noted that being related to the scheme that preferred embodiment and embodiment 1 provide in the above embodiments of the present application 2
And application scenarios implementation process is identical, but not limited to the examples scheme provided by 1.
Embodiment 3
According to embodiments of the present invention, a kind of detection device is provided, Fig. 5 is shown according to the detection device of the embodiment of the present application
It is intended to.As shown in figure 5, the device 500 includes the first acquisition module 502 and determining module 504.
Wherein, module 502 is obtained, for obtaining the appliance information and channel status letter of the electric appliance of access Wireless Communication Equipment
Breath, wherein channel state information is extracted from the wireless network signal of electric appliance by Wireless Communication Equipment；Determining module 504, is used for
The ageing information of each element in electric appliance is determined according to appliance information and channel state information.
Optionally, above-mentioned apparatus can also include: to establish module, for obtaining the electric appliance of access Wireless Communication Equipment
Before appliance information and channel state information, the database of different appliance informations is established, wherein each element is prestored in database
Aging character data.
Optionally it is determined that module may include: determining submodule, for determining target database according to appliance information；In advance
Processing module obtains pretreatment information for carrying out de-redundancy processing to channel state information；Characteristic extracting module, for pair
It pre-processes information and carries out feature extraction, obtain characteristic parameter；Matching module, for by characteristic parameter with it is old in target database
Change characteristic to be matched, obtains ageing information.
Optionally, preprocessing module includes: convolution module, for passing through low-pass filter in channel state information every two
Data in two channels do process of convolution, obtain denoising data；Dimensionality reduction module, for being carried out by dimension-reduction algorithm to denoising data
Dimension-reduction treatment obtains pretreatment information.
Optionally, characteristic parameter includes fisrt feature parameter and second feature parameter, and characteristic extracting module includes: parsing mould
Block obtains spectrogram for carrying out frequency resolution to pretreatment information by wavelet transform；First extracting sub-module is used
In the wavelet coefficient for extracting each frequency range in spectrogram, as fisrt feature parameter；Second extraction module is used for estimated spectral figure
In each sampling instant upper cut-off frequency and centre frequency, as second feature parameter.
Optionally, above-mentioned apparatus can also include: sending module, for true according to appliance information and channel state information
Determine in electric appliance after the ageing information of each element, ageing information is sent to prompt equipment.
It should be noted that above-mentioned first obtains module 502 and determining module 504 corresponding to the step in embodiment 1
S102 to step S104, two modules are identical as example and application scenarios that corresponding step is realized, but are not limited to above-mentioned
1 disclosure of that of embodiment.
Embodiment 4
According to embodiments of the present invention, a kind of detection device is provided, Fig. 6 is shown according to the detection device of the embodiment of the present application
It is intended to.As shown in fig. 6, the device 600 includes the second acquisition module 602, extraction module 604 and uploading module 606.
Wherein, second module 602 is obtained, for obtaining the wireless network signal of electric appliance；Extraction module 604, for extracting
Channel state information in wireless network signal；Uploading module 606, for uploading the appliance information of channel state information and electric appliance
To server, wherein server determines the ageing information of each element in electric appliance according to channel state information and appliance information.
Optionally, above-mentioned apparatus can also include: to establish module, for obtain electric appliance wireless network signal before,
Establish the database of different appliance informations, wherein the aging character data of each element are prestored in database.
Optionally, server may include: determining submodule, for determining target database according to appliance information；Pre- place
Module is managed, for carrying out de-redundancy processing to channel state information, obtains pretreatment information；Characteristic extracting module, for pre-
It handles information and carries out feature extraction, obtain characteristic parameter；Matching module, for by the aging in characteristic parameter and target database
Characteristic is matched, and ageing information is obtained.
Optionally, preprocessing module includes: convolution module, for passing through low-pass filter in channel state information every two
Data in two channels do process of convolution, obtain denoising data；Dimensionality reduction module, for being carried out by dimension-reduction algorithm to denoising data
Dimension-reduction treatment obtains pretreatment information.
Optionally, characteristic parameter includes fisrt feature parameter and second feature parameter, and characteristic extracting module includes: parsing mould
Block obtains spectrogram for carrying out frequency resolution to pretreatment information by wavelet transform；First extracting sub-module is used
In the wavelet coefficient for extracting each frequency range in spectrogram, as fisrt feature parameter；Second extraction module is used for estimated spectral figure
In each sampling instant upper cut-off frequency and centre frequency, as second feature parameter.
Optionally, server can also include: sending module, for determining according to appliance information and channel state information
In electric appliance after the ageing information of each element, ageing information is sent to prompt equipment.
It should be noted that above-mentioned second obtains module 602, extraction module 604 and uploading module 606 corresponding to embodiment
Step S402 to step S406 in 2, three modules are identical as example and application scenarios that corresponding step is realized, but not
It is limited to 2 disclosure of that of above-described embodiment.
Embodiment 5
According to embodiments of the present invention, a kind of storage medium is provided, storage medium includes the program of storage, wherein in journey
Equipment executes the detection method in embodiment 1 or 2 where controlling storage medium when sort run.
Embodiment 6
According to embodiments of the present invention, a kind of processor is provided, processor is for running program, wherein run in program
Detection method in Shi Zhihang embodiment 1 or 2.
Embodiment 7
According to embodiments of the present invention, a kind of detection system is provided, comprising:
Wireless Communication Equipment extracts the channel status in wireless network signal for obtaining the wireless network signal of electric appliance
Information, and the appliance information of channel state information and electric appliance is uploaded to server；Server, for according to channel state information and
Appliance information determines the ageing information of each element in electric appliance.
Further, the instruction of other steps in embodiment 1 or 2 can also be performed in server or Wireless Communication Equipment, this
Place repeats no more.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (12)
1. a kind of detection method characterized by comprising
Obtain the appliance information and channel state information of the electric appliance of access Wireless Communication Equipment, wherein the channel state information
It is extracted from the wireless network signal of the electric appliance by the Wireless Communication Equipment；
The ageing information of each element in the electric appliance is determined according to the appliance information and the channel state information.
2. the method according to claim 1, wherein in the electric appliance letter for obtaining the electric appliance of access Wireless Communication Equipment
Before breath and channel state information, the method also includes:
Establish the database of different appliance informations, wherein the aging character data of each element are prestored in the database.
3. according to the method described in claim 2, it is characterized in that, true according to the appliance information and the channel state information
The ageing information of each element in the fixed electric appliance, comprising:
Target database is determined according to the appliance information；
De-redundancy processing is carried out to the channel state information, obtains pretreatment information；
Feature extraction is carried out to the pretreatment information, obtains characteristic parameter；
The characteristic parameter is matched with the aging character data in the target database, obtains the ageing information.
4. according to the method described in claim 3, it is characterized in that, being obtained to channel state information progress de-redundancy processing
To pretreatment information, comprising:
Process of convolution is done per the data in channel two-by-two in the channel state information by low-pass filter, obtains denoising number
According to；
Dimension-reduction treatment is carried out to the denoising data by dimension-reduction algorithm, obtains the pretreatment information.
5. according to the method described in claim 3, it is characterized in that, the characteristic parameter includes that fisrt feature parameter and second are special
Parameter is levied, feature extraction is carried out to the pretreatment information, obtains characteristic parameter, comprising:
Frequency resolution is carried out to the pretreatment information by wavelet transform, obtains spectrogram；
The wavelet coefficient for extracting each frequency range in the spectrogram, as the fisrt feature parameter；
The upper cut-off frequency and centre frequency for estimating each sampling instant in the spectrogram are joined as the second feature
Number.
6. the method according to claim 1, wherein according to the appliance information and the channel state information
It determines in the electric appliance after the ageing information of each element, the method also includes:
The ageing information is sent to prompt equipment.
7. a kind of detection method characterized by comprising
Obtain the wireless network signal of electric appliance；
Extract the channel state information in the wireless network signal；
The appliance information of the channel state information and the electric appliance is uploaded to server, wherein the server is according to
Channel state information and the appliance information determine the ageing information of each element in the electric appliance.
8. a kind of detection device characterized by comprising
First obtains module, the appliance information and channel state information of the electric appliance for obtaining access Wireless Communication Equipment, wherein
The channel state information is extracted from the wireless network signal of the electric appliance by the Wireless Communication Equipment；
Determining module, for determining the aging of each element in the electric appliance according to the appliance information and the channel state information
Information.
9. a kind of detection device characterized by comprising
Second obtains module, for obtaining the wireless network signal of electric appliance；
Extraction module, for extracting the channel state information in the wireless network signal；
Uploading module, for uploading the appliance information of the channel state information and the electric appliance to server, wherein the clothes
Business device determines the ageing information of each element in the electric appliance according to the channel state information and the appliance information.
10. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require 1 or 7 described in detection method.
11. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require 1 or 7 described in detection method.
12. a kind of detection system characterized by comprising
Wireless Communication Equipment extracts the channel status in the wireless network signal for obtaining the wireless network signal of electric appliance
Information, and the appliance information of the channel state information and the electric appliance is uploaded to server；
The server, for determining the old of each element in the electric appliance according to the channel state information and the appliance information
Change information.
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