CN107065835B - A kind of vehicle Life cycle electric property monitoring and evaluating system and appraisal procedure - Google Patents
A kind of vehicle Life cycle electric property monitoring and evaluating system and appraisal procedure Download PDFInfo
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- CN107065835B CN107065835B CN201710395389.8A CN201710395389A CN107065835B CN 107065835 B CN107065835 B CN 107065835B CN 201710395389 A CN201710395389 A CN 201710395389A CN 107065835 B CN107065835 B CN 107065835B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
- G05B23/0243—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults model based detection method, e.g. first-principles knowledge model
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
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Abstract
The present invention relates to a kind of vehicle Life cycle electric property monitoring and evaluating system and appraisal procedures, belong to vehicle intelligent equipment field.Technical solution is as follows: central control unit is separately connected data acquisition unit and network transmitting unit；Vehicle electric state comprehensive assessment unit is separately connected sensing data storing and resolving unit, electric state model depth unit, error code storing and resolving unit and vehicle electric state history recording unit.Beneficial effect is: vehicle Life cycle electric property monitoring and evaluating system of the present invention and appraisal procedure carry out monitoring and assessment in all directions to the electric property of vehicle, so that during Second-hand Vehicle Transaction, vehicle insurance flexible pricing, vehicle management relevant departments to vehicle assess in and vehicle when scrapping, obtain a more scientific assessment result, ensure the interests of consumer, the efficiency of management for improving vehicle management department, economizes on resources and reaches recyclable.
Description
Technical field
The present invention relates to a kind of car-mounted terminal monitoring devices more particularly to a kind of vehicle Life cycle electric property to monitor
Assessment system and appraisal procedure.
Background technique
Second-hand Vehicle Transaction is more more and more universal, but vehicle condition detection is currently limited to appearance, be in danger record and maintenance note
It records, the account of the history record in the electric property situation especially vehicle life cycle about vehicle interior but has no way of understanding.And with
Vehicle electronics integrated level it is higher and higher, each electronic device histories electric state accounts for the specific gravity of vehicle condition evaluation increasingly
Greatly, so grasp to vehicle electric historical situation, it appears more and more important.
Vehicle population tends to be saturated, and Second-hand Vehicle Transaction scale increases severely year by year, and vehicle condition is very different, lacks complete
Objective vehicle Life cycle electronic equipment electric state situation assessment report.
Vehicle management correlation functional department can not flexibly formulate vehicle scrapping time point according to each assembly property of vehicle, money
Source configuration is not flexible.
After vehicle scrapping, the still Ke Xunhuanliyong component in part is supported because of no life cycle running state data, can not be sentenced
It is disconnected whether to continue to use, cause to waste.
Car insurance price reference, i.e., using vehicle electric condition evaluation result as the reference factor of insurance flexible pricing.
Summary of the invention
In order to which the electric property to vehicle carries out monitoring and assessment in all directions, the present invention provides a kind of full Life Cycle of vehicle
Phase electric property monitoring and evaluating system and appraisal procedure, the program carry out monitoring in all directions to the electric property of vehicle and comment
Estimate so that during Second-hand Vehicle Transaction, vehicle management relevant departments to vehicle assess in and vehicle when scrapping, obtain
The assessment result more scientific to one ensures the interests of consumer, improves the efficiency of management of vehicle management department, economizes on resources and reach
To can be recycled.The technical solution is as follows:
A kind of vehicle Life cycle electric property monitoring and evaluating system, including terminal device and electric property assessment record
System, the terminal device include data acquisition unit, central control unit and network transmitting unit, the central control unit
It is separately connected the data acquisition unit and network transmitting unit；The electric property assessment record system includes that vehicle electrical is vaporous
State comprehensive assessment unit, sensing data storing and resolving unit, electric state model depth unit, error code storing and resolving
Unit and vehicle electric state history recording unit, the vehicle electric state comprehensive assessment unit are separately connected the sensor
Data storing and resolving unit, electric state model depth unit, error code storing and resolving unit and vehicle electric state are gone through
History recording unit.
The invention also includes a kind of vehicle Life cycle electric property monitoring and assessing methods, and steps are as follows:
S1, data acquisition unit are acquired the electric data of some electronic control unit under travel condition of vehicle；
Collected electric data is sent to central control unit by S2, data acquisition unit, and central control unit is by institute
It states electric data to be handled, electric data is transmitted through the network to by electric property assessment record system by network transmitting unit
System；
S3, electric property assessment record system measure the electric data received and frequency acquisition respectively, by several
The metric composite vector of associated electric data, obtains feature vector of the current electronic control unit under current state；
S4, it described eigenvector is passed into BP neural network is trained, using Sigmoid type activation primitive, obtain
Electrical operation condition evaluation results；
S5, the electrical operation condition evaluation results are multiplied by weight plus electronic control unit error code as a result, obtaining current electricity
Control location mode result；
S6, several electronic control unit state outcomes synthesis obtain vehicle electric state assessment result.
Further, measurement described in S3 uses data normalization algorithm:Wherein max is sample number
According to maximum value, min is sample data minimum value；Y is end value, and x is current sample value.
Further, metric described in S3 is in [0,1] section.
Further, the number of plies range of BP neural network described in S4 is at 2-5 layers.
Further, electronic control unit error code result is that current electronic control unit error code is obtained multiplied by corresponding weight in S5
It arrives.
Further, the weight is set according to fixed step ratio, sets the big of weight according to the height of severity level
It is small.
Further, binding time parameter is stored in electric property assessment note after obtaining vehicle electric state assessment result
Recording system.
The beneficial effects of the present invention are:
Vehicle Life cycle electric property monitoring and evaluating system of the present invention and appraisal procedure are to the electrical of vehicle
Performance carries out monitoring and assessment in all directions, so that during Second-hand Vehicle Transaction, vehicle insurance flexible pricing, vehicle management dependent part
Door to vehicle assess in and vehicle when scrapping, obtain a more scientific assessment result, ensure the interests of consumer,
The efficiency of management for improving vehicle management department, economizes on resources and reaches recyclable.
Detailed description of the invention
Fig. 1 is present device composition schematic diagram；
Fig. 2 is terminal device structural schematic diagram of the present invention；
Fig. 3 is that electric property of the present invention assesses record system；
Fig. 4 is that the present invention generates feature vector flow diagram；
Fig. 5 is 2 layers of neural network model figure of the invention；
Fig. 6 is the method for the present invention flow chart 1；
Fig. 7 is the method for the present invention flow chart 2；
Fig. 8 is the method for the present invention flow chart 3；
Specific embodiment
A kind of vehicle Life cycle electric property monitoring and evaluating system, including terminal device and electric property assessment record
System, the terminal device include data acquisition unit, central control unit and network transmitting unit, the central control unit
It is separately connected the data acquisition unit and network transmitting unit；The electric property assessment record system includes that vehicle electrical is vaporous
State comprehensive assessment unit, sensing data storing and resolving unit, electric state model depth unit, error code storing and resolving
Unit and vehicle electric state history recording unit, the vehicle electric state comprehensive assessment unit are separately connected the sensor
Data storing and resolving unit, electric state model depth unit, error code storing and resolving unit and vehicle electric state are gone through
History recording unit.
Data acquisition unit is communication connection can be established with vehicle bus, and obtain the number of each sensor operating value in real time
According to acquisition module, after sensor content comes from vehicle release, the sensor of mounted all kinds of monitoring travel condition of vehicle, or
It can also be according to practical specific requirements, the more multisensor of installation.
The invention also includes a kind of vehicle Life cycle electric property monitoring and assessing methods, and steps are as follows:
S1, data acquisition unit are acquired the electric data of some electronic control unit under travel condition of vehicle；
Collected electric data is sent to central control unit by S2, data acquisition unit, and central control unit is by institute
It states electric data to be handled, electric data is transmitted through the network to by electric property assessment record system by network transmitting unit
System；
S3, electric property assessment record system measure the electric data received and frequency acquisition respectively, by several
The metric composite vector of electric data obtains feature vector of the current electronic control unit under current state；
S4, it described eigenvector is passed into BP neural network is trained, using Sigmoid type activation primitive, obtain
Electrical operation condition evaluation results；
S5, the electrical operation condition evaluation results are multiplied by weight plus electronic control unit error code as a result, obtaining current electricity
Control location mode result；
S6, several electronic control unit state outcomes synthesis obtain vehicle electric state assessment result.
Measurement described in S3 uses data normalization algorithm:Wherein max is sample data maximum value,
Min is sample data minimum value；Y is end value, and x is current sample value.
Metric described in S3 is in [0,1] section.
The number of plies range of BP neural network described in S4 is at 2-5 layers.
Electronic control unit error code result is that current electronic control unit error code is obtained multiplied by corresponding weight in S5.
The weight is set according to fixed step ratio, and the size of weight is set according to the height of severity level.
Binding time parameter is stored in electric property assessment record system after obtaining vehicle electric state assessment result.
As shown in Fig. 5, feature vector is extracted to the different conditions of automobile electronic control unit operation, obtains a large amount of feature vectors
BP neural network is passed to later, and the neuron of network input layer is the dimension of feature vector, and the output layer of network is 1 mind
Through member, activation primitive application Sigmoid type function.The number of plies of BP neural network is depending on extracting feature quantity, but the number of plies is not
It is preferably excessive, it will cause gradient disappearance, cause neural network that can not restrain, substantially number of plies range is at 2 to 5 layers.It can train in this way
One neural network.Its feature can be extracted to the type electronic control unit of any one vehicle later, and pass to mind
Through network, the assessment of electronic control unit operating status can be provided.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art within the technical scope of the present disclosure, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of vehicle Life cycle electric property monitoring and evaluating system, which is characterized in that including terminal device and electrical resistance
Can assess record system, the terminal device includes data acquisition unit, central control unit and network transmitting unit, it is described in
Centre control unit is separately connected the data acquisition unit and network transmitting unit；The electric property assesses record system
Vehicle electric state comprehensive assessment unit, sensing data storing and resolving unit, electric state model depth unit, failure
Code storing and resolving unit and vehicle electric state history recording unit, the vehicle electric state comprehensive assessment unit are separately connected
The sensing data storing and resolving unit, electric state model depth unit, error code storing and resolving unit and vehicle
Electric state history holding unit；
When being monitored assessment to vehicle Life cycle electric property, following steps are executed:
S1, data acquisition unit are acquired the electric data of some electronic control unit under travel condition of vehicle；
Collected electric data is sent to central control unit by S2, data acquisition unit, and central control unit is by the electricity
Electric data is transmitted through the network to electric property by network transmitting unit and assesses record system by destiny according to being handled；
S3, electric property assessment record system measure the electric data received and frequency acquisition respectively, by several correlations
The metric composite vector for joining electric data, obtains feature vector of the current electronic control unit under current state；
S4, it described eigenvector is passed into BP neural network is trained, using Sigmoid type activation primitive, obtain electrical
Operating status assessment result；
S5, the electrical operation condition evaluation results add electronic control unit error code as a result, obtaining current automatically controlled list multiplied by weight
First state outcome；
S6, several electronic control unit state outcomes synthesis obtain vehicle electric state assessment result.
2. vehicle Life cycle electric property monitoring and evaluating system as described in claim 1, which is characterized in that described in S3
Measurement uses data normalization algorithm:Wherein max is sample data maximum value, and min is that sample data is minimum
Value；Y is end value, and x is current sample value.
3. vehicle Life cycle electric property monitoring and evaluating system as described in claim 1, which is characterized in that described in S3
Metric is in [0,1] section.
4. vehicle Life cycle electric property monitoring and evaluating system as described in claim 1, which is characterized in that described in S4
The number of plies range of BP neural network is at 2-5 layers.
5. vehicle Life cycle electric property monitoring and evaluating system as described in claim 1, which is characterized in that automatically controlled in S5
Cell failure code result is that current electronic control unit error code is obtained multiplied by corresponding weight.
6. vehicle Life cycle electric property monitoring and evaluating system as claimed in claim 1 or 5, which is characterized in that described
Weight is set according to fixed step ratio, and the size of weight is set according to the height of severity level.
7. vehicle Life cycle electric property monitoring and evaluating system as described in claim 1, which is characterized in that obtain vehicle
Binding time parameter is stored in electric property assessment record system after electric state assessment result.
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| CN201710395389.8A CN107065835B (en) | 2017-05-26 | 2017-05-26 | A kind of vehicle Life cycle electric property monitoring and evaluating system and appraisal procedure |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108376288B (en) * | 2018-01-19 | 2021-04-23 | 地上铁租车（深圳）有限公司 | Electric vehicle maintenance method and device based on big data technology |
| CN109190922A (en) * | 2018-08-10 | 2019-01-11 | 中车青岛四方机车车辆股份有限公司 | A kind of vehicle mass appraisal procedure and device |
| CN111143771B (en) * | 2019-12-12 | 2021-12-07 | 中山大学 | Motor vehicle remaining amount calculation method, system, device and medium |
| CN111753196A (en) * | 2020-06-17 | 2020-10-09 | 东风小康汽车有限公司重庆分公司 | Method and device for evaluating state of vehicle electrical system |
| CN112131282A (en) * | 2020-09-30 | 2020-12-25 | 上海擎感智能科技有限公司 | Vehicle life cycle data management method, electronic device, system and storage medium |
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