CN208012829U - A kind of vehicular engine liquid leakage detector device - Google Patents
A kind of vehicular engine liquid leakage detector device Download PDFInfo
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- CN208012829U CN208012829U CN201820191344.9U CN201820191344U CN208012829U CN 208012829 U CN208012829 U CN 208012829U CN 201820191344 U CN201820191344 U CN 201820191344U CN 208012829 U CN208012829 U CN 208012829U
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- display module
- probe assembly
- vehicular engine
- detector device
- liquid leakage
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Abstract
The utility model is vehicular engine liquid leakage detector device, belongs to vehicular engine detection technique comprising signal processing circuit, display module, connection flexible pipe component and probe assembly；One end of connection flexible pipe component is fixedly connected with display module, and the other end is fixedly connected with probe assembly；Signal processing circuit is electrically connected with probe assembly, after Pretreated spectra being carried out to the spectrum of measured object, confirmation is identified to measured object based on near-infrared spectrum analysis identification model, thus differentiates that engine leakage is specially lubricating oil leakage or leak, identification result is output to display module.The utility model is realized using near infrared spectrum detection and industrial endoscope detection technique, is carried out non-destructive testing by near-infrared spectrum analysis, analyzes the specific composition qualities of engine leakage, the testing result of a science is provided for service personnel.
Description
Technical field
The utility model is related to vehicular engine detection techniques, specifically, being related to a kind of vehicular engine leakage detection
Instrument.
Background technology
The detection of vehicular engine can be realized by industrial endoscope detection technique.Currently, industrial endoscope is mainly drawn
It is divided into two types：The first is freestanding, i.e. for camera after hose stretches into position to be checked, by position to be checked the case where is anti-
It is fed to control circuit board, control circuit board is electrically connected by the data line with USB interface with mobile terminal, realizes data transmission.
Another is integral type, i.e., sample unit, detection part and display unit are mounted in same housing, related this kind of industry
The patent document of endoscope is clear primarily directed to the transmission technology of video, the rotation of probe, the brightness of illumination and image
Degree.
Although the industrial endoscope technology of both the above type has certain practicability, endoscope can only be to portion to be checked
The situation of position is transmitted into row information, needs the micro-judgment by testing staff for diagnostic result, has certain subjectivity
And one-sidedness.
Invention content
In order to solve deficiency of the prior art, the utility model provides that a kind of detection speed is fast, accuracy is high
Vehicular engine liquid leakage detector device is realized using near infrared spectrum detection and industrial endoscope detection technique, by close red
External spectrum analysis carries out non-destructive testing, and analyzes the specific composition qualities of engine leakage, and science is provided for service personnel
Testing result.
The utility model detecting instrument adopts the following technical scheme that realize：A kind of vehicular engine liquid leakage detector device,
Including signal processing circuit, display module, connection flexible pipe component and probe assembly；One end of connection flexible pipe component and display module
It is fixedly connected, the other end is fixedly connected with probe assembly；Signal processing circuit is electrically connected with probe assembly, to the spectrum of measured object
After carrying out Pretreated spectra, confirmation is identified to measured object based on near-infrared spectrum analysis identification model, thus differentiates and starts
Identification result is output to display module by the attribute of machine leakage, i.e. lubricating oil leakage or leak.
Preferably, the element in the probe assembly includes camera, infrared light-emitting diode, infrared receiving tube and illumination
Lamp；Include four groups of guiding steel wires in connection flexible pipe component, one end of every group of guiding steel wire is connect with display module, every group of guiding
The other end of steel wire is separately connected camera, infrared light-emitting diode, infrared receiving tube and headlamp；The front end of hose is set
There are one joint is oriented to, the guiding steel wire is being oriented to intra-articular guided bend, and the element in probe assembly is driven to turn to reality
Existing comprehensive inspection.
Preferably, the display module include the display screen being fixedly mounted in the housing section of display module, main menu by
Button, illumination shortcut key, manipulation button, near infrared ray detection button and switching shortcut key of taking pictures/record a video；Manipulation button with connect it is soft
Tube assembly connects.
Preferably, the vehicular engine liquid leakage detector device further includes the Handleset being connect with display module.
Compared with prior art, the utility model has the beneficial effects that：This vehicular engine liquid leakage detector device passes through close
The method of infrared spectrum analysis, carries out non-destructive testing, and analyzes the specific composition qualities of engine leakage, one is provided for service personnel
The testing result of a science, and vehicle is targetedly repaired.Also there is simple and compact for structure, small and cost simultaneously
Low advantage, has practical significance.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the schematic diagram of the utility model probe component；
Fig. 3 is the Establishing process figure that the utility model detects identification model；
Wherein：
1 Handleset, 2 battery
3 display module, 4 connection flexible pipe component
5 probe assemblies 31 manipulate button
32 near infrared ray detection buttons 33, which take pictures/record a video, switches shortcut key
34 main menu buttons 35 illuminate shortcut key
36 display screen, 37 housing section
41 are oriented to 51 camera of joint
52 infrared light-emitting diodes
53 infrared receiving tube, 54 LED illumination lamp
Specific implementation mode
In order to which the purpose of this utility model, technical solution and advantage are more clearly understood, with reference to the accompanying drawings and embodiments,
The utility model is described in further detail.
Embodiment
As shown in Figure 1 and Figure 2, which includes signal processing circuit, Handleset 1, display
Component 3, connection flexible pipe component 4 and probe assembly 5.Display module 3 is connected to by housing section 37 on Handleset 1；It connects soft
One end of tube assembly 4 is fixedly connected with display module 3, and the other end of connection flexible pipe component 4 is fixedly connected with probe assembly 5.Letter
Number processing circuit is mounted in housing section 37, be electrically connected with probe assembly, after the spectrum progress Pretreated spectra of measured object, base
Confirmation is identified to measured object in near-infrared spectrum analysis identification model, thus differentiate engine leakage be specially lubricating oil leakage also
It is leak.
Battery 2 is installed in 1 shell of Handleset, power supply is provided for detector.Display module 3 includes display screen 36, entree
Single button 34, illumination shortcut key 35, manipulation button 31, near infrared ray detection button 32 and switching shortcut key 33 of taking pictures/record a video；Its
In, switching shortcut key 33 of taking pictures/record a video is exposal model in default situations, enters video recording mould when the quick key pressing of the switching
Formula then enters exposal model, switches in turn between both of which when pressing again.Display screen 36, main menu button 34, illumination are fast
Prompt key 35, manipulation button 31, near infrared ray detection button 32 and switching shortcut key 33 of taking pictures/record a video are fixedly mounted on housing section 37
On, circuit unit is mounted on inside housing section 37.Probe assembly 5 includes camera 51, infrared light-emitting diode 52, infrared receiver
Pipe 53, LED illumination lamp 54 and seal glass.There are 4 groups of guiding steel wires, one end of every group of guiding steel wire equal in connection flexible pipe component 4
Connect with manipulation button 31, the other end of every group of guiding steel wire respectively in probe assembly 5 four elements (i.e. camera 51,
Infrared light-emitting diode 52, infrared receiving tube 53, LED illumination lamp 54) connection；The front end of connection flexible pipe component 4, i.e. probe assembly
5 rear is oriented to joint and is preferably bent snake bone pipe there are one joint 41 is oriented to.Testing staff can be operated by upper and lower, left and right
Button 31 is manipulated, with the operation of testing staff, steel wire guided bend in bending snake bone pipe is oriented to, thus drives probe assembly
Element in 5 turns to, and realizes comprehensive inspection.
The course of work of the utility model detecting instrument, includes the following steps：
S1, it presses main menu button, opens automobile endoscope, service personnel is by can be with the easily operated connection of bending change
Hose 4 stretches into automobile engine abnormal position and is detected, and according to detection need to manipulation button operate, such as into
360 ° of row is observed and realization is illuminated, taken pictures, recording function；
S2, when detector detects the engine phenomenon of leakage, probe assembly is directed at detected material, presses near infrared ray
Detection button emits near infrared light, and infrared receiving tube receives the reflected light of detected material, acquires the close red of detected material
Then external spectrum carries out near-infrared spectrum analysis identification to leakage.
Before carrying out near-infrared spectrum analysis identification, it need to train in advance and establish identification model.Because viscosity is to weigh lubrication
One key factor of oil quality index, therefore, the utility model establish near-infrared using lubricating oil viscosity as a parameter
The near infrared spectrum of leakage and this identification model are identified spectrum analysis identification model.As shown in figure 3, training is known in advance
The establishment step of other model is as follows：
The first step：The acquisition of spectrum
By the miniature near infrared spectrometers of MicroNIR to the representational different manufacturers of certain amount, different quality grade
Lubricating oil sample carry out near infrared spectra collection.Wherein, it is representative refer to sample viscosity temperature characteristic distribution diversity.Each
Sample collection spectrum three times, and its average value is taken to concentrate the original near infrared light of each sample as lubricating oil viscosity sample spectra
Modal data.
Second step：The pretreatment of spectrum
In gatherer process, since the factors such as environment can cause spectrum certain drift and include that certain interference is believed
Breath leads to the unstability of model to which modeling result accuracy can be made to decline.Therefore, it needs to use before establishing calibration model
Certain Pretreated spectra rejects the spectral information unrelated with target factor, improves the predictive ability of calibration model as far as possible
And robustness.The Pretreated spectra of lubricating oil viscosity uses multiplicative scatter correction (MSC) method, algorithm as follows：
1. calculating the averaged spectrum of all samples spectrum：
2. by the spectrum A of each sampleiWith averaged spectrumLinear regression is carried out, regression coefficient m is acquiredi、bi：
3. calculating the spectrum after correction：
Wherein, i=1,2 ... ... n, n are sample number, and j indicates j-th of wave number.
Third walks：Establish calibration model
The original near infrared spectrum data of lubricating oil viscosity is divided by calibration set and verification using random sample partitioning
Collection, the calibration model of lubricating oil viscosity is established by the method for offset minimum binary, calculating process is as follows：
First, spectrum matrix X and concentration matrix Y are decomposed：
X=TP+E
Y=UQ+F
Wherein T and U is respectively the score matrix of X and Y, and P and Q are respectively the loading matrix (number of principal components) of X and Y, E and F
The error of fitting matrix of respectively X and Y.
Then, linear regression is carried out to T and U, B is incidence coefficient matrix：
U=TB
B=TU (TT)-1
Finally, the score matrix T of spectrum is found out according to the loading matrix P of known spectraIt is unknown, then can come according to the following formula
The value of unknown sample is predicted：
YIt is unknown=TIt is unknownBQ
4th step：Verify calibration model
Accuracy, the robustness of model are verified with the sample of verification collection.Before this, with the side of routine, standard
Method measures lubricating oil viscosity, judges whether within the allowable range to verify the error for collecting verification viscosity number and bioassay standard value, is,
Then output calibration model；It is no, then it repartitions calibration set and verification collects, repeat the step of third walks and establish calibration model again,
Until error meet demand, output calibration model.Its model passes through coefficient R, forecast set root-mean-square error (RMSEP) and school
Positive collection root-mean-square error (RMSEC) carrys out overall merit, and RMSEP and RMSEC should be very close, and coefficient R is higher,
RMSEP and RMSEC are lower, and the performance of model is better.
In formula,For model predication value, yiFor actual measured value, IcFor the sample number in calibration set, IpIt is concentrated for verification
Sample number, f be independent variable number,For the average value of actual measured value.
The near-infrared spectrum analysis identification model that water is established according to the training in advance of above-mentioned same method and step, that is, acquire water
Near infrared spectrum, establish calibration model after being pre-processed by multiplicative scatter correction (MSC) method, and to this calibration model into
Row verification.Above-mentioned lubricating oil viscosity near-infrared spectrum analysis identification model and the near-infrared spectrum analysis identification model of water are stored
On the utility model vehicular engine liquid leakage detector device internal processor.
Signal processing circuit in S3, housing section 37 carries out the spectrum of measured object the Pretreated spectra of above-mentioned second step
Afterwards, confirmation is identified based on two groups of near-infrared spectrum analysis identification models that above-mentioned S2 is established, thus differentiates engine leakage
The concrete condition of liquid, i.e. oil leak or leak；Include finally on display screen 36 by identification result.
Specific implementation mode described above is only preferred embodiment provided by the utility model, is not really wanted to this practicality
Novel content is limited.Other any changes made without departing from the technical solution of the utility model or other equivalent
Substitute mode is included within the scope of protection of the utility model.
Claims (6)
1. a kind of vehicular engine liquid leakage detector device, which is characterized in that soft including signal processing circuit, display module, connection
Tube assembly and probe assembly；One end of connection flexible pipe component is fixedly connected with display module, and the other end is fixed with probe assembly to be connected
It connects；Signal processing circuit is electrically connected with probe assembly, after carrying out Pretreated spectra to the spectrum of measured object, is based near infrared spectrum
Confirmation is identified to measured object in analysis and identification model, thus differentiates that engine leakage is specially lubricating oil leakage or leak, mirror
Other result is output to display module.
2. vehicular engine liquid leakage detector device according to claim 1, which is characterized in that the member in the probe assembly
Part includes camera, infrared light-emitting diode, infrared receiving tube and headlamp；Include four groups of guiding steel in connection flexible pipe component
Silk, one end of every group of guiding steel wire connect with display module, and the other end of every group of guiding steel wire is separately connected camera, infrared
Light emitting diode, infrared receiving tube and headlamp；The front end of hose is set there are one joint is oriented to, and the guiding steel wire is being led
To intra-articular guided bend, the element in probe assembly is driven to turn to realize comprehensive inspection.
3. vehicular engine liquid leakage detector device according to claim 2, which is characterized in that the guiding joint is bending
Snake bone pipe.
4. vehicular engine liquid leakage detector device according to claim 1, which is characterized in that the display module includes solid
Display screen, main menu button, illumination shortcut key, manipulation button, near infrared ray of the Dingan County in the housing section of display module are examined
Survey button and switching shortcut key of taking pictures/record a video；Manipulation button is connect with connection flexible pipe component.
5. vehicular engine liquid leakage detector device according to claim 1, which is characterized in that the vehicular engine leakage
Detecting instrument further includes the Handleset being connect with display module.
6. vehicular engine liquid leakage detector device according to claim 5, which is characterized in that the shell of the Handleset
Interior installation battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820191344.9U CN208012829U (en) | 2018-02-05 | 2018-02-05 | A kind of vehicular engine liquid leakage detector device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820191344.9U CN208012829U (en) | 2018-02-05 | 2018-02-05 | A kind of vehicular engine liquid leakage detector device |
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| CN208012829U true CN208012829U (en) | 2018-10-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287046A (en) * | 2018-02-05 | 2018-07-17 | 广东轻工职业技术学院 | A kind of vehicular engine liquid leakage detector device and method |
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2018
- 2018-02-05 CN CN201820191344.9U patent/CN208012829U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108287046A (en) * | 2018-02-05 | 2018-07-17 | 广东轻工职业技术学院 | A kind of vehicular engine liquid leakage detector device and method |
| CN108287046B (en) * | 2018-02-05 | 2024-04-05 | 广东轻工职业技术学院 | Vehicle engine liquid leakage detection instrument and method |
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