CN105974847B - Temperature Monitoring in Cold Chain system based on remote management - Google Patents
Temperature Monitoring in Cold Chain system based on remote management Download PDFInfo
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- CN105974847B CN105974847B CN201610479199.XA CN201610479199A CN105974847B CN 105974847 B CN105974847 B CN 105974847B CN 201610479199 A CN201610479199 A CN 201610479199A CN 105974847 B CN105974847 B CN 105974847B
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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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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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
- G05B2219/24024—Safety, surveillance
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Abstract
The temperature Monitoring in Cold Chain system based on remote management that the present invention relates to a kind of, including temperature Monitoring in Cold Chain equipment, picture pick-up device, sunlight source of early warning, image-preprocessing device and image recognition apparatus, sunlight source of early warning is connect with picture pick-up device, driver's seat image for being acquired to picture pick-up device carries out sunlight early warning analysis, and determines whether according to the result of analysis to start the image recognition operations of the image pretreatment operation and image recognition apparatus of image-preprocessing device.By means of the invention it is possible to ensure the accuracy of sunlight testing result.
Description
Technical field
The present invention relates to monitoring temperature field more particularly to a kind of temperature Monitoring in Cold Chain systems based on remote management.
Background technology
If sunlight is too strong, and manual shield plate can not cover irradiation area of the sunlight to driver, then be easy to driving
Member causes unsighted situation to occur in the process of moving, once in this way, driver has judged front end traffic conditions, or mistake by accident
The traveling spacing for having sentenced surrounding vehicles, is easy to cause traffic accident, is caused to driver, passenger and the vehicles
Certain personal injury and property loss.
Under sunlight, the skin of driver is easy tanned, may cause to peel under serious conditions, meanwhile, to driving
The route for the person of sailing brings uncomfortable driving experience, this point, is that the manufacturer of the vehicles is unwilling to see.
Moreover, because the steering position where driver is typically in the front end of the vehicles, and at other passengers
Seating position be typically in the rear ends of the vehicles, therefore, the sunlight area that driver is born, which is greater than, generally to be multiplied
The sunlight area that visitor is born, moreover, the sunlight intensity that driver is born is greater than what general passenger was born
Sunlight intensity.It can be seen that in the decision blocked for sunlight, the selection of driver and the selection of general passenger are to deposit
In the possibility of conflict.
However, be generally only in the prior art to be simply to set a sunshading board for the sunlight mechanism of blocking of driver,
It by driver in the case where sunlight strength is excessively high, manually selects and pushes sunshading board and protected, this mode excessively falls behind.Together
When, electronics sunshade means in the prior art are fairly simple, do not account for selection and the selection of general passenger of driver
Conflict place.
For this purpose, the present invention proposes a kind of technical solution of new driver's sunshade, it is contemplated that the selection of driver
In place of the conflict of the selection of general passenger, according to the specific sunlight situation of steering position, exclusively for driver's setting one
Adaptive sunshade mechanism is covered, to solve the contradiction between the selection of driver and the selection of general passenger.
Invention content
To solve the above-mentioned problems, the temperature Monitoring in Cold Chain system based on remote management that the present invention provides a kind of, passes through
The specific sunlight situation of detection steering position in real time introduces multiple images processing equipment and is carried out to specific sunlight situation
Quantitative analysis, while the travel direction of the vehicles is judged, to according to travel direction, the corresponding position of sunlight subgraph
It sets and corresponding area ratio determines steering position sunshade nearby or the driving control signal except hot equipment.
According to an aspect of the present invention, a kind of temperature Monitoring in Cold Chain system based on remote management, the system are provided
Including temperature Monitoring in Cold Chain equipment, picture pick-up device, sunlight source of early warning, image-preprocessing device and image recognition apparatus, sunlight
Source of early warning is connect with picture pick-up device, and the driver's seat image for being acquired to picture pick-up device carries out sunlight early warning analysis, and root
Determine whether that starting the image pretreatment operation of image-preprocessing device and the image of image recognition apparatus knows according to the result of analysis
It does not operate.
More specifically, in the temperature Monitoring in Cold Chain system based on remote management, including：Temperature Monitoring in Cold Chain is set
It is standby, it is connect with Freescale MC9S12 chips, for carrying out temperature Monitoring in Cold Chain to vehicle, and monitoring result is passed through into channel radio
Letter link is sent to the vehicle temperature management platform of distal end；Horizontal gyro is arranged in the front end instrument board of vehicle, for real
When detect and export vehicle heading；Horizontal gyro includes rotor, holder, interior ring stand and outer ring stand, and rotor is mounted in holder
Interior, interior ring stand is arranged on the central shaft of rotor, and outer shroud frame is arranged except interior ring stand；Freescale MC9S12 chips, setting
It in the front end instrument board of vehicle, is connect respectively with horizontal gyro and solar data analytical equipment, for receiving vehicle traveling
Direction, the corresponding position of each sunlight subgraph and corresponding area ratio, and based on vehicle heading, each
A corresponding position of sunlight subgraph and corresponding area ratio determine driving control signal；Multiple vehicular windows
Curtain is separately positioned on above multiple vehicle windows, each vehicle curtain corresponds to a vehicle window, at vehicle curtain
Sunlight is carried out when extended configuration to corresponding vehicle window to block；Multiple extension type pull rods, each extension type pull rod
A corresponding vehicle curtain, the retracted position for controlling corresponding vehicle curtain；Curtain driver, with multiple extension type pull rods
Connection, also connect with Freescale MC9S12 chips, for receiving driving control signal, and based on driving control signal to multiple
Extension type pull rod carries out extension and contraction control；Picture pick-up device, be arranged in front of vehicle drive position, for driver's seat scene into
Row Image Acquisition continuous in time is to export driver's seat image；Sunlight source of early warning, connect with picture pick-up device, for receiving
Driver's seat image calculates the average brightness value of driver's seat image, when the average brightness value of driver's seat image is more than or equal to
When predetermined luminance threshold value, the too strong pre-warning signal of sunlight is sent out, driver's seat image is sent to gray processing processing equipment, otherwise,
Sunlight strength normal signal is sent out, stops driver's seat image being sent to gray processing processing equipment；Gray processing processing equipment, with
Sunlight source of early warning connects, including channel parameters extraction unit, weighted value storage unit and gray value computing unit, channel parameters
Extraction unit is connect with picture pick-up device, for receiving driver's seat image to extract each pixel in driver's seat image
The channels R pixel value, the channels G pixel value and channel B pixel value, weighted value storage unit is for having prestored R channel weightings
Value, G channel weightings value and channel B weighted value, gray value computing unit are stored with channel parameters extraction unit and weighted value respectively
Unit connects, and for each pixel in driver's seat image, the channels R pixel value and the product of R channel weighting values, G are led to
The product addition of the product of road pixel value and G channel weighting values and channel B pixel value and channel B weighted value is directed to obtaining
The gray value of pixel, and the gray value based on each pixel in driver's seat image obtains the corresponding ash of driver's seat image
Degreeization image；Wherein, it is 0.586811 that R channel weightings value value, which is 0.298839, G channel weightings value value, channel B weighted value
Value is 0.114350；Histogram distribution detection device is connect with gray processing processing equipment, for receiving gray level image, and
Grey level histogram processing is carried out to obtain corresponding histogram image to gray level image, bimodal distribution is presented in histogram image
When, global threshold selection signal is sent out, otherwise, sends out non-global threshold selection signal；Threshold value selects equipment, with histogram distribution
Detection device connects, for when receiving global threshold selection signal, global threshold 128 to be exported as threshold data,
When receiving non-global threshold selection signal, neighbor pixel gray difference threshold 40 is exported as threshold data；At binaryzation
Equipment is managed, selects equipment and histogram distribution detection device to connect with threshold value respectively, for receiving global threshold selection letter
Number when, for each pixel in gray level image, when gray value is more than or equal to threshold data, by for pixel
Be set as white level pixel, when gray value be less than threshold data when, by for pixel be set as black level pixel, and
The corresponding binary image of output gray level image；Binary conversion treatment equipment is additionally operable to receiving non-global threshold selection signal
When, for each pixel in gray level image, calculate the ash of the vertical direction pixel apart from its 3 pixels upwards
Angle value calculates the gray value of the vertical direction pixel apart from its 3 pixels downwards as lower picture as upper grey scale pixel value
The gray value of plain gray value, the calculated level direction pixel apart from its 3 pixels to the left is calculated as left grey scale pixel value
The gray value of the horizontal direction pixel apart from its 3 pixels to the right as right grey scale pixel value, when upper grey scale pixel value and
The absolute value of the difference of lower grey scale pixel value is less than or equal to the exhausted of threshold data and the difference of left grey scale pixel value and right grey scale pixel value
To value be less than or equal to threshold data when, by for pixel be set as white level pixel, when upper grey scale pixel value and lower picture
The absolute value of the difference of plain gray value is more than threshold data or the absolute value of the difference of left grey scale pixel value and right grey scale pixel value is more than
When threshold data, by for pixel be set as black level pixel, and the corresponding binary image of output gray level image；
Picture smooth treatment equipment is connect with binary conversion treatment equipment, for receiving binary image, for every in binary image
One pixel, when in adjacent all pixels point there are when the trip point of more than half, then by for pixel gray scale
Value retains, otherwise, by for the gray value of pixel be set as white level pixel, and it is corresponding flat to export binary image
Sliding image；Wiener filtering equipment is connect with image balance processing equipment, and for receiving smoothed image, dimension is executed to smoothed image
It receives and is filtered to obtain filtering image, wherein mean square error of the Wiener filtering processing for making smoothed image and filtering image
Minimum is to remove the white noise and speckle noise in smoothed image；Solar data analytical equipment, connect with Wiener filtering equipment with
Obtain filtering image；For each pixel in filtering image, by its gray value and the progress of default sunlight tonal range
Match, when its gray value is in default sunlight tonal range, determines that it is sunlight pixel；By all sunlight in filtering image
The region of pixel composition is split from filtering image to obtain each sunlight subgraph；And it is based on each sunlight subgraph
The area ratio of filtering image is occupied as determining its position in filtering image and calculating it；Export each sunlight subgraph
Corresponding position and corresponding area ratio；Solar energy detection device, for detecting current solar energy in real time
Intensity；Power supply unit, including solar powered device, accumulator, switching switch and electric pressure converter, switching switch respectively with too
Positive energy detection device, solar powered device are connected with accumulator, when the solar energy that the remaining capacity of accumulator is insufficient and current
When intensity is optionally greater than preset strength threshold value, solar powered device is switched to be powered by solar powered device, voltage turns
Parallel operation and switching switch connection, will be converted to 3.3V voltages, wherein solar powered by the 5V voltages for switching switch input
Device includes solar energy photovoltaic panel；Wireless charging device is connect respectively with solar energy detection device and accumulator, when accumulator
When the insufficient and current solar energy intensity of remaining capacity is less than preset strength, connection is established to open with neighbouring wireless charging terminal
Dynamic wireless charging operation, wireless charging device are also connect with electric pressure converter to realize that voltage is converted.
More specifically, in the temperature Monitoring in Cold Chain system based on remote management, further include：User input equipment,
For depending on the user's operation, receiving default sunlight tonal range input by user.
More specifically, in the temperature Monitoring in Cold Chain system based on remote management：User input equipment is keyboard battle array
Row.
More specifically, in the temperature Monitoring in Cold Chain system based on remote management, further include：Wireless telecom equipment,
It is connect with Freescale MC9S12 chips, for transmitting wirelessly vehicle heading, the corresponding position of each sunlight subgraph
It sets and corresponding area ratio.
More specifically, in the temperature Monitoring in Cold Chain system based on remote management：Wireless telecom equipment is arranged in vehicle
At the top of.
More specifically, in the temperature Monitoring in Cold Chain system based on remote management：Wireless telecom equipment is that the time-division is double
Work communication equipment or frequency duplex communications equipment.
Description of the drawings
Embodiment of the present invention is described below with reference to attached drawing, wherein：
Fig. 1 is the structure box according to the temperature Monitoring in Cold Chain system based on remote management shown in embodiment of the present invention
Figure.
Reference numeral：1 picture pick-up device；2 sunlight sources of early warning；3 image-preprocessing devices；4 image recognition apparatus
Specific implementation mode
The embodiment of the temperature Monitoring in Cold Chain system based on remote management of the present invention is carried out below with reference to accompanying drawings
It is described in detail.
Under fair weather, sunlight may cause many adverse effects to the driver of the vehicles, such as influence to drive
The member visual field, and lead to driver's skin lesion or driver's heatstroke is caused to happen, hidden danger is brought to the driving of driver,
Meanwhile injury is brought to the body of driver.
In the prior art, a kind of settling mode is that a sunshading board is arranged in the front of steering position, in sunlight mistake
Strong or in the case that sunlight area is larger, driver can voluntarily put down sunshading board manually, be protected to skin of face,
The case where avoiding intense direct illumination eyes simultaneously and the visual field brought to be obstructed.
It will be apparent that above-mentioned manual Types ofshading sunshade range is smaller, it can not be to the entire face of driver or even entire trunk
Carry out effective protection.For this purpose, in the prior art, some vehicle manufacturers are provided with sunlight strength near steering position
The electron detection device of electron detection device or sunlight range determines the protection operation mode of relevant device according to testing result.
But above-mentioned electronics Types ofshading is also too simple, on the one hand, does not account for vehicle travels direction to sun
Light irradiates the influence brought, causes shaded effects not high, on the other hand, does not account in sunshade policy selection, driver
Selection and general passenger selection exist conflict place, cause to be consistent the sunshade means of the entire vehicles, nothing
The demand of method allowing for driver and other passengers, such as the air-conditioner temperature and wind of the vehicles may be increased when sunlight is too strong
Amount obtains situation comfortable and that other passenger's body-sensings are excessively cool so as to cause driver and occurs.
In order to overcome above-mentioned deficiency, the present invention has built a kind of temperature Monitoring in Cold Chain system based on remote management, perfect
Existing electronics sunshade mechanism is detected by sunlight strength to steering position and sunlight range, by association
Vehicle travels direction is the most key to determine sunshade strategy, and determining sunshade strategy is customized for driver, is filled
Divide the different sun-shading requirements in view of driver and other passengers, to be provided preferably for all personnel to ride public transportation means
User experience.
Fig. 1 is the structure box according to the temperature Monitoring in Cold Chain system based on remote management shown in embodiment of the present invention
Figure, the system comprises the knowledges of temperature Monitoring in Cold Chain equipment, picture pick-up device, sunlight source of early warning, image-preprocessing device and image
Other equipment, sunlight source of early warning are connect with picture pick-up device, and it is pre- that the driver's seat image for being acquired to picture pick-up device carries out sunlight
Alert analysis, and determine whether that the image pretreatment operation of startup image-preprocessing device and image recognition are set according to the result of analysis
Standby image recognition operations.
Then, continue to carry out the concrete structure of the temperature Monitoring in Cold Chain system based on remote management of the present invention further
Explanation.
The system comprises：Temperature Monitoring in Cold Chain equipment is connect with Freescale MC9S12 chips, for being carried out to vehicle
Temperature Monitoring in Cold Chain, and link is sent to the vehicle temperature management platform of distal end by radio communication by monitoring result；Horizontal top
Spiral shell instrument is arranged in the front end instrument board of vehicle, for detecting in real time and exporting vehicle heading；Horizontal gyro includes turning
Son, holder, interior ring stand and outer ring stand, in holder, interior ring stand is arranged on the central shaft of rotor rotor, and the setting of outer shroud frame exists
Except interior ring stand.
The system comprises：Freescale MC9S12 chips are arranged in the front end instrument board of vehicle, respectively with horizontal top
Spiral shell instrument is connected with solar data analytical equipment, for receiving vehicle heading, the corresponding position of each sunlight subgraph
And corresponding area ratio, and based on vehicle heading, the corresponding position of each sunlight subgraph and divide
Not corresponding area ratio determines driving control signal；Multiple vehicle curtain are separately positioned on above multiple vehicle windows, each
A vehicle curtain corresponds to a vehicle window, for carrying out sun to corresponding vehicle window when vehicle curtain is in extended configuration
Light blocks；Multiple extension type pull rods, each extension type pull rod corresponds to a vehicle curtain, for controlling corresponding vehicular window
The retracted position of curtain.
The system comprises：Curtain driver is connect with multiple extension type pull rods, also with Freescale MC9S12 chips
Connection carries out extension and contraction control for receiving driving control signal, and based on driving control signal to multiple extension type pull rods；It takes the photograph
As equipment, it is arranged in front of vehicle drive position, for carrying out Image Acquisition continuous in time to driver's seat scene with defeated
Go out driver's seat image；Sunlight source of early warning, connect with picture pick-up device, for receiving driver's seat image, calculates driver's seat
The average brightness value of image sends out sunlight mistake when the average brightness value of driver's seat image is more than or equal to predetermined luminance threshold value
Driver's seat image is sent to gray processing processing equipment by strong pre-warning signal, otherwise, sends out sunlight strength normal signal, is stopped
Driver's seat image is sent to gray processing processing equipment.
The system comprises：Gray processing processing equipment is connect with sunlight source of early warning, including channel parameters extraction unit,
Weighted value storage unit and gray value computing unit, channel parameters extraction unit is connect with picture pick-up device, for receiving driver's seat
Bit image is to extract the channels R pixel value, the channels G pixel value and the channel B pixel of each pixel in driver's seat image
Value, weighted value storage unit is for having prestored R channel weightings value, G channel weightings value and channel B weighted value, gray value meter
It calculates unit to connect with channel parameters extraction unit and weighted value storage unit respectively, for each pixel in driver's seat image
Point, by product, the product and channel B picture of the channels G pixel value and G channel weighting values of the channels R pixel value and R channel weighting values
The product addition of plain value and channel B weighted value is based on each in driver's seat image with obtaining the gray value for the pixel being directed to
The gray value of a pixel obtains the corresponding gray level image of driver's seat image；Wherein, R channel weightings value value is
0.298839, G channel weighting value value is 0.586811, and channel B weighted value value is 0.114350.
The system comprises：Histogram distribution detection device is connect with gray processing processing equipment, for receiving gray processing figure
Picture, and grey level histogram processing is carried out to obtain corresponding histogram image to gray level image, it is presented in histogram image double
When peak is distributed, global threshold selection signal is sent out, otherwise, sends out non-global threshold selection signal；Threshold value selects equipment, with histogram
Figure distribution detection device connects, for when receiving global threshold selection signal, being used as threshold data defeated global threshold 128
Go out, when receiving non-global threshold selection signal, neighbor pixel gray difference threshold 40 is exported as threshold data.
The system comprises：Binary conversion treatment equipment selects equipment and histogram distribution detection device to connect with threshold value respectively
It connects, for when receiving global threshold selection signal, for each pixel in gray level image, when gray value is more than
When equal to threshold data, by for pixel be set as white level pixel, when gray value be less than threshold data when, will be directed to
Pixel be set as black level pixel, and the corresponding binary image of output gray level image；Binary conversion treatment equipment is also
For when receiving non-global threshold selection signal, for each pixel in gray level image, calculating vertical direction
The gray value of the pixel apart from its 3 pixels calculates vertical direction downwards apart from its 3 as upper grey scale pixel value upwards
The gray value of the pixel of pixel is as lower grey scale pixel value, the calculated level direction pixel apart from its 3 pixels to the left
The gray value of point as left grey scale pixel value, make by the gray value of the calculated level direction pixel apart from its 3 pixels to the right
For right grey scale pixel value, when the absolute value of the difference of upper grey scale pixel value and lower grey scale pixel value is less than or equal to threshold data and left picture
The absolute value of the difference of plain gray value and right grey scale pixel value be less than or equal to threshold data when, by for pixel be set as white appliances
Flat pixel, when the absolute value of the difference of upper grey scale pixel value and lower grey scale pixel value be more than threshold data or left grey scale pixel value and
When the absolute value of the difference of right grey scale pixel value is more than threshold data, by for pixel be set as black level pixel, and it is defeated
Go out the corresponding binary image of gray level image.
The system comprises：Picture smooth treatment equipment is connect with binary conversion treatment equipment, for receiving binary picture
Picture, for each pixel in binary image, when in adjacent all pixels point there are when the trip point of more than half,
Then by for the gray value of pixel retain, otherwise, by for the gray value of pixel be set as white level pixel, and
Export the corresponding smoothed image of binary image.
The system comprises：Wiener filtering equipment is connect with image balance processing equipment, right for receiving smoothed image
Smoothed image executes Wiener filtering processing to obtain filtering image, and wherein Wiener filtering processing is for so that smoothed image and filtering
The mean square error minimum of image is to remove the white noise and speckle noise in smoothed image；Solar data analytical equipment, with wiener
Filter apparatus is connected to obtain filtering image；For each pixel in filtering image, by its gray value and default sunlight
Tonal range is matched, and when its gray value is in default sunlight tonal range, determines that it is sunlight pixel；Filtering is schemed
The region of all sunlight pixels composition as in is split from filtering image to obtain each sunlight subgraph；And it is based on
Each sunlight subgraph, which determines its position in filtering image and calculates it, occupies the area ratio of filtering image；Output
Each corresponding position of sunlight subgraph and corresponding area ratio.
The system comprises：Solar energy detection device, for detecting current solar energy intensity in real time；Power supply unit, packet
Include solar powered device, accumulator, switching switch and electric pressure converter, switching switch respectively with solar energy detection device, too
Positive energy power supply device is connected with accumulator, when the insufficient and current solar energy intensity of the remaining capacity of accumulator is optionally greater than default
When intensity threshold, solar powered device is switched to be powered by solar powered device, electric pressure converter connects with switching switch
It connects, 3.3V voltages will be converted to by the 5V voltages for switching switch input, wherein solar powered device includes solar energy
Lie prostrate plate.
The system comprises：Wireless charging device is connect respectively with solar energy detection device and accumulator, when accumulator
When the insufficient and current solar energy intensity of remaining capacity is less than preset strength, connection is established to open with neighbouring wireless charging terminal
Dynamic wireless charging operation, wireless charging device are also connect with electric pressure converter to realize that voltage is converted.
Optionally, in the system, further include：User input equipment, for depending on the user's operation, it is defeated to receive user
The default sunlight tonal range entered；User input equipment is keyboard array；Further include：Wireless telecom equipment, with Freescale
MC9S12 chips connect, for transmitting wirelessly vehicle heading, the corresponding position of each sunlight subgraph and difference
Corresponding area ratio；Wireless telecom equipment is arranged in vehicle roof；And wireless telecom equipment is tdd communication apparatus
Or frequency duplex communications equipment.
In addition, 4G LTE are the standards of a global general-use, including two kinds of network modes FDD and TDD, it is respectively used in pairs
Frequency spectrum and non-paired frequency spectrum.Operator's initially choice between two patterns purely for spectrum availability the considerations of.Greatly
Multi-operator will dispose two kinds of networks simultaneously, so as to all frequency spectrum resources for making full use of it to possess.FDD and TDD are in technology
Very little, the main distinction are that using different duplex modes, frequency division duplex (FDD) and time division duplex (TDD) in fact for upper difference
It is two different duplex modes.
FDD is received and transmitted on two symmetrical frequency channels of separation, with protection frequency range come detach receive and
Send channel.FDD must use pairs of frequency, carry out differentiating uplink and downlink link by frequency, unidirectional resource is in the time
On be continuous.FDD can make full use of the frequency spectrum of uplink and downlink, but when supporting non-symmetrical service when supporting symmetrical service, frequency
Spectrum utilization rate will substantially reduce.
TDD sends and receivees channel with the time to detach.In the mobile communication system of TDD modes, sending and receiving makes
Use the different time-gap of same frequency carrier wave as the carrying of channel, unidirectional resource is discontinuous, the time in time
Resource is distributed in two directions.Some period sends a signal to mobile station by base station, and the time in addition is by moving
Platform sends a signal to base station, must harmonious ability work well between base station and mobile station.
Temperature Monitoring in Cold Chain system using the present invention based on remote management can not be steering position for the prior art
Driver the technical problem of customization sunshade strategy is provided, by carrying out Image Acquisition to the sunlight situation of steering position,
It introduces a series of images processing equipment accurately to analyze the image collected, by analysis result combination vehicle travels side
To determine that the visor mode at steering position, determining visor mode are specific to driver rather than all passengers, to
The level of comfort to ride public transportation means is improved on the whole.
It is understood that although the present invention has been disclosed in the preferred embodiments as above, above-described embodiment not to
Limit the present invention.For any person skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications all are made to technical solution of the present invention using the technology contents of the disclosure above, or are revised as
With the equivalent embodiment of variation.Therefore, every content without departing from technical solution of the present invention is right according to the technical essence of the invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments still fall within the range of technical solution of the present invention protection
It is interior.
Claims (1)
1. a kind of temperature Monitoring in Cold Chain system based on remote management, the system comprises temperature Monitoring in Cold Chain equipment, camera shootings to set
Standby, sunlight source of early warning, image-preprocessing device and image recognition apparatus, sunlight source of early warning connect with picture pick-up device, are used for
Sunlight early warning analysis is carried out to the driver's seat image of picture pick-up device acquisition, and startup image is determined whether according to the result of analysis
The image pretreatment operation of pre-processing device and the image recognition operations of image recognition apparatus；
It is characterized in that, the system also includes：
Temperature Monitoring in Cold Chain equipment is connect with Freescale MC9S12 chips, for carrying out temperature Monitoring in Cold Chain to vehicle, and will
Link is sent to the vehicle temperature management platform of distal end to monitoring result by radio communication；
Horizontal gyro is arranged in the front end instrument board of vehicle, for detecting in real time and exporting vehicle heading；Horizontal top
Spiral shell instrument includes rotor, holder, interior ring stand and outer ring stand, and rotor is in holder, and interior ring stand is arranged on the central shaft of rotor, outside
Ring stand is arranged except interior ring stand；
Freescale MC9S12 chips are arranged in the front end instrument board of vehicle, divide respectively with horizontal gyro and solar data
Desorption device connects, for receiving vehicle heading, the corresponding position of each sunlight subgraph and corresponding face
Product ratio, and it is based on vehicle heading, the corresponding position of each sunlight subgraph and corresponding area ratio
Determine driving control signal；
Multiple vehicle curtain are separately positioned on above multiple vehicle windows, each vehicle curtain corresponds to a vehicle window, are used
It is blocked in carrying out sunlight to corresponding vehicle window when vehicle curtain is in extended configuration；
Multiple extension type pull rods, each extension type pull rod corresponds to a vehicle curtain, for controlling corresponding vehicle curtain
Retracted position；
Curtain driver is connect with multiple extension type pull rods, is also connect with Freescale MC9S12 chips, for receiving driving
Signal is controlled, and extension and contraction control is carried out to multiple extension type pull rods based on driving control signal；
Picture pick-up device is arranged in front of vehicle drive position, is adopted for carrying out image continuous in time to driver's seat scene
Collection is to export driver's seat image；
Sunlight source of early warning, connect with picture pick-up device, for receiving driver's seat image, calculates the average bright of driver's seat image
Angle value sends out the too strong pre-warning signal of sunlight when the average brightness value of driver's seat image is more than or equal to predetermined luminance threshold value, will
Driver's seat image is sent to gray processing processing equipment, otherwise, sends out sunlight strength normal signal, stops driver's seat image
It is sent to gray processing processing equipment；
Gray processing processing equipment is connect with sunlight source of early warning, including channel parameters extraction unit, weighted value storage unit and ash
Angle value computing unit, channel parameters extraction unit are connect with picture pick-up device, are driven for receiving driver's seat image with extracting
The channels R pixel value, the channels G pixel value and the channel B pixel value of each pixel in seat image, weighted value storage unit are used
In having prestored R channel weightings value, G channel weightings value and channel B weighted value, gray value computing unit respectively with channel parameters
Extraction unit is connected with weighted value storage unit, for each pixel in driver's seat image, by the channels R pixel value and R
The product of channel weighting value, the product and channel B pixel value and channel B weighted value of the channels G pixel value and G channel weighting values
Product addition is to obtain the gray value for the pixel being directed to, and the gray value based on each pixel in driver's seat image obtains
The corresponding gray level image of driver's seat image；Wherein, R channel weightings value value is that 0.298839, G channel weighting value values are
0.586811, channel B weighted value value is 0.114350；
Histogram distribution detection device is connect with gray processing processing equipment, for receiving gray level image, and to gray level image
Grey level histogram processing is carried out to obtain corresponding histogram image, when bimodal distribution is presented in histogram image, sends out the overall situation
Otherwise threshold value selection signal sends out non-global threshold selection signal；
Threshold value selects equipment, is connect with histogram distribution detection device, will be complete for when receiving global threshold selection signal
Office's threshold value 128 is exported as threshold data, when receiving non-global threshold selection signal, by neighbor pixel gray difference threshold
40 export as threshold data；
Binary conversion treatment equipment selects equipment and histogram distribution detection device to connect with threshold value respectively, for receiving entirely
It,, will when gray value is more than or equal to threshold data for each pixel in gray level image when office's threshold value selection signal
For pixel be set as white level pixel, when gray value be less than threshold data when, by for pixel be set as black
Level pixel point, and the corresponding binary image of output gray level image；Binary conversion treatment equipment be additionally operable to receive it is non-complete
When office's threshold value selection signal, for each pixel in gray level image, vertical direction is calculated upwards apart from its 3 pixels
The gray value of the pixel of point calculates the vertical direction pixel apart from its 3 pixels downwards as upper grey scale pixel value
Gray value is as lower grey scale pixel value, and the gray value of the calculated level direction pixel apart from its 3 pixels to the left is as left
Grey scale pixel value, the gray value of the calculated level direction pixel apart from its 3 pixels to the right as right grey scale pixel value, when
The absolute value of the difference of upper grey scale pixel value and lower grey scale pixel value is less than or equal to threshold data and left grey scale pixel value and right pixel
The absolute value of the difference of gray value be less than or equal to threshold data when, by for pixel be set as white level pixel, when upper picture
The absolute value of the difference of plain gray value and lower grey scale pixel value be more than threshold data or left grey scale pixel value and right grey scale pixel value it
Absolute value of the difference be more than threshold data when, by for pixel be set as black level pixel, and output gray level image pair
The binary image answered；
Picture smooth treatment equipment is connect with binary conversion treatment equipment, for receiving binary image, in binary image
Each pixel, when in adjacent all pixels point there are when the trip point of more than half, then by for pixel
Gray value retains, otherwise, by for the gray value of pixel be set as white level pixel, and export binary image correspondence
Smoothed image；
Wiener filtering equipment is connect with image balance processing equipment, and for receiving smoothed image, wiener filter is executed to smoothed image
Wave processing is to obtain filtering image, and wherein Wiener filtering processing is for so that the mean square error of smoothed image and filtering image is minimum
To remove the white noise and speckle noise in smoothed image；
Solar data analytical equipment is connect with Wiener filtering equipment to obtain filtering image；For each in filtering image
Pixel matches its gray value with default sunlight tonal range, when its gray value is in default sunlight tonal range,
Determine that it is sunlight pixel；The region of all sunlight pixels composition in filtering image is split from filtering image
To obtain each sunlight subgraph；And its position in filtering image is determined based on each sunlight subgraph and calculates it
Occupy the area ratio of filtering image；Export the corresponding position of each sunlight subgraph and corresponding area ratio
Rate；
Solar energy detection device, for detecting current solar energy intensity in real time；
Power supply unit, including solar powered device, accumulator, switching switch and electric pressure converter, switching switch respectively with too
Positive energy detection device, solar powered device are connected with accumulator, when the solar energy that the remaining capacity of accumulator is insufficient and current
When intensity is optionally greater than preset strength threshold value, solar powered device is switched to be powered by solar powered device, voltage turns
Parallel operation and switching switch connection, will be converted to 3.3V voltages, wherein solar powered by the 5V voltages for switching switch input
Device includes solar energy photovoltaic panel；
Wireless charging device is connect with solar energy detection device and accumulator respectively, when the remaining capacity of accumulator is insufficient and works as
When preceding solar energy intensity is less than preset strength, establishes and is connected to start wireless charging operation with neighbouring wireless charging terminal,
Wireless charging device is also connect with electric pressure converter to realize that voltage is converted；
User input equipment, for depending on the user's operation, receiving default sunlight tonal range input by user；
User input equipment is keyboard array；
Wireless telecom equipment is connect with Freescale MC9S12 chips, for transmitting wirelessly vehicle heading, each sunlight
The corresponding position of image and corresponding area ratio；
Wireless telecom equipment is arranged in vehicle roof；
Wireless telecom equipment is tdd communication apparatus or frequency duplex communications equipment.
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