CN107317982B - Interior environmental monitoring platform - Google Patents
Interior environmental monitoring platform Download PDFInfo
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- CN107317982B CN107317982B CN201710711202.0A CN201710711202A CN107317982B CN 107317982 B CN107317982 B CN 107317982B CN 201710711202 A CN201710711202 A CN 201710711202A CN 107317982 B CN107317982 B CN 107317982B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
- G06V20/53—Recognition of crowd images, e.g. recognition of crowd congestion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
- H04N25/70—SSIS architectures; Circuits associated therewith
- H04N25/71—Charge-coupled device [CCD] sensors; Charge-transfer registers specially adapted for CCD sensors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3179—Video signal processing therefor
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Image Processing (AREA)
Abstract
The present invention relates to a kind of interior environmental monitoring platform, including FLASH storage chips, live fluoroscopic equipment and live play equipment, the FLASH storage chips are arranged in compartment, for prestoring first weight coefficient, second weight coefficient and the 3rd weight coefficient, the live fluoroscopic equipment is arranged on car body top, for the live fluoroscopic for the jam situation that each predeterminable area is carried out towards compartment ground, the live play equipment is arranged in compartment, for playing the speech play file related to the jam situation of each predeterminable area.By means of the invention it is possible to realize the Intellectualized monitoring to interior environment.
Description
Technical field
The present invention relates to picture control field, more particularly to a kind of interior environmental monitoring platform.
Background technology
Compartment is the main tool of transporting passengers, all indispensable in the important vehicles such as train, automobile, high ferro,
Such as railway carriage has semi-cushioned seat coach, cushioned seat coach, sleeper, dining car etc..
When passenger is less in compartment, the environment in compartment is comfortable happy, and passenger can arbitrarily walk about in compartment,
Freely walk, viewing landscape is selected according to the demand of oneself, talks or is sitting on car chair with people and have a rest.
However, there is also the period that passenger is crowded, such as festivals or holidays or weekend in compartment, because the destination of passenger is overlapping
Property it is high, anxious passenger to be arrived at has been crowded with each compartment, and due to bandwagon effect, in car door or some regions
Passenger is excessive, and other zone passengers are relatively fewer, so causes the space in compartment not to be utilized effectively.
The content of the invention
In order to solve the above problems, the invention provides a kind of interior environmental monitoring platform, using targeted
Human body image identification on the basis of, can be determined based on each human body target in the real time position of interior in compartment each
Human body quantity in individual predeterminable area, when the human body quantity in predeterminable area is more than or equal to predetermined number threshold value, it is determined that default
Region is congestion regions, when the human body quantity in predeterminable area is more than or equal to the half of predetermined number threshold value and is less than predetermined number
During threshold value, it is normal region to determine predeterminable area, when the human body quantity in predeterminable area is less than the half of predetermined number threshold value,
It is clear area to determine predeterminable area, so as to which the personnel in compartment are carried out with the A clear guidance of clear area.
According to an aspect of the present invention, there is provided a kind of interior environmental monitoring platform, the platform include：FLASH
Storage chip, live fluoroscopic equipment and live play equipment, the FLASH storage chips are arranged in compartment, for depositing in advance
First weight coefficient, second weight coefficient and the 3rd weight coefficient are stored up, the live fluoroscopic equipment is arranged on
Car body top, the live fluoroscopic of the jam situation for carrying out each predeterminable area towards compartment ground, the live play are set
It is standby to be arranged in compartment, for playing the speech play file related to the jam situation of each predeterminable area.
More specifically, in the interior environmental monitoring platform, in addition to：Parallel acquisition equipment, for compartment
Internal environment carries out real time image collection, including data-detection apparatus, DAF, data output interface and present count
Amount, parallel arrangement of multiple CCD optical-electrical converters, the multiple CCD optical-electrical converters carry out image towards interior environment
Data acquisition, each CCD optical-electrical converter export an initial environment image；The data-detection apparatus respectively with it is described more
Individual CCD optical-electrical converters connection, for receiving corresponding multiple initial environment images, extracts each initial environment image respectively
Contrast, signal to noise ratio and dynamic range；The DAF is examined with the FLASH storage chips and the data respectively
Measurement equipment connects, and determines that each is initial for the contrast based on each initial environment image, signal to noise ratio and dynamic range
The signal quality balance index of ambient image；
Wherein, contrast, signal to noise ratio and dynamic range based on each initial environment image determine each initial ring
The signal quality balance index of border image includes：The contrast of each initial environment image and the first weight coefficient are multiplied to
The first product is obtained, the signal to noise ratio of each initial environment image and the second weight coefficient are multiplied to obtain the second product, will
The dynamic range of each initial environment image and the 3rd weight coefficient are multiplied to obtain the 3rd product, by first product,
Second product and the 3rd product addition weigh index to obtain the signal quality；The data output interface with
The DAF connection, for the signal quality balance index of each initial environment image to be compared, by signal
Quality is weighed index highest initial environment image and exported as high definition ambient image.
More specifically, in the interior environmental monitoring platform, in addition to：
First conversion equipment, it is connected with parallel acquisition equipment, for receiving high definition ambient image, to the high definition environment map
The pixel value of each pixel of picture performs logarithmic transformation to obtain corresponding logarithm value, by the institute of the high definition ambient image
By pixel, according to pixel, putting in order in the high definition ambient image forms two-dimensional array to corresponding logarithm value respectively
To be exported as logarithmic transformation array；
Second conversion equipment, it is connected with first conversion equipment, for receiving the logarithmic transformation array, and using bent
Wave conversion decomposes to the logarithmic transformation array, to obtain the high frequency conversion array of the high definition ambient image and described
The low frequency transform array of high definition ambient image；
Break up processing equipment, be connected with second conversion equipment, for the high frequency conversion to the high definition ambient image
Array performs bilateral filtering processing to obtain the first processing array, and light is performed to the low frequency transform array of the high definition ambient image
Described first processing array and the second processing array are combined into described by sliding filtering process with obtaining second processing array
Sharpening ambient image corresponding to high definition ambient image；Wherein, the differentiation processing equipment handles array and institute by described first
State second processing array be combined into the high definition ambient image corresponding to sharpening ambient image include：The differentiation processing equipment
Described first processing array and the second processing array are combined into by the high definition ambient image pair based on bent reconstructed wave pattern
The sharpening ambient image answered；
Human body target detection device, it is connected with the differentiation processing equipment, for carrying out human body to sharpening ambient image
Identify to obtain multiple human body targets in sharpening ambient image；
Human body target location equipment, it is connected with the human body target detection device, for each human body target, being based on
Its depth of field in sharpening ambient image determines its real time position in interior；
Congestion analytical equipment, it is connected with the human body target location equipment, based on each human body target in compartment
The real time position in portion, determine the human body quantity in each predeterminable area in compartment, when the human body quantity in predeterminable area be more than etc.
When predetermined number threshold value, it is congestion regions to determine predeterminable area, when the human body quantity in predeterminable area is more than or equal to present count
When measuring the half of threshold value and being less than predetermined number threshold value, it is normal region to determine predeterminable area, when the human body number in predeterminable area
When amount is less than the half of predetermined number threshold value, it is clear area to determine predeterminable area；
Wherein, the live fluoroscopic equipment is connected with the congestion analytical equipment, for being carried out towards compartment ground
The live fluoroscopic of the jam situation of each predeterminable area, wherein, when predeterminable area is congestion regions, projected color is red,
When predeterminable area is normal region, projected color is yellow, and when predeterminable area is clear area, projected color is green；
The project content of the live fluoroscopic equipment also includes each arrow that clear area is pointed to from congestion regions；
Wherein, for each initial environment image, its contrast is higher, and signal quality balance index is bigger, its noise
Than higher, signal quality balance index is bigger, and its dynamic range is bigger, and signal quality balance index is bigger.
More specifically, in the interior environmental monitoring platform：The distribution situation of each predeterminable area is in compartment：
The direction advanced along compartment, is divided horizontally into each predeterminable area, the area of each predeterminable area is identical by compartment.
More specifically, in the interior environmental monitoring platform：The human body target detection device, the human body mesh
Mark location equipment and the congestion analytical equipment are arranged in the control room in compartment.
More specifically, in the interior environmental monitoring platform：The parallel acquisition equipment is arranged on car body top.
More specifically, in the interior environmental monitoring platform：The live play equipment and the congestion
Analytical equipment connects, for playing the speech play file related to the jam situation of each predeterminable area；Wherein, the congestion
When status analysis equipment gets the predeterminable area for congestion regions, the live play device plays with for the pre- of clear area
If speech play file corresponding to the positional information in region.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
Fig. 1 is the block diagram of the interior environmental monitoring platform according to embodiment of the present invention.
Fig. 2 is the structure of the parallel acquisition equipment of the interior environmental monitoring platform according to embodiment of the present invention
Block diagram.
Reference：1FLASH storage chips；2 live fluoroscopic equipment；3 live play equipment；4 parallel acquisition equipment；5 gather around
Stifled status analysis equipment；41 data-detection apparatus；42 DAFs；43 data output interfaces；44CCD optical-electrical converters
Embodiment
The embodiment of the interior environmental monitoring platform of the present invention is described in detail below with reference to accompanying drawings.
Nearly all on a vehicle, train has compartment in compartment, and some automobiles also have.Railway carriage be it is a section,
Linked up so train saves compartment by a section.
Often there are two doors in section compartment, there is lavatory and washing house.There is the luggage carrier for putting personal luggage article above seat.Compartment
Inside there are illumination and air-conditioning equipment.The sleeping berth of semi-cushioned berth sleeping car is lying when sleeping at night for long-distance passenger.One is divided into ten with diaphragm plate in compartment
Several guest rooms, the upper, middle and lower paving arranged opposite in each guest room；Compartment opposite side has a passage, it is near the window set the seat sat for people and
Tea table.Sleeper is according to Various Seasonal, there is provided simple bedding bedding.
However, it is blindness that the stream of people, which springs up, in current compartment, lack effective guiding mechanism.In order to overcome it is above-mentioned not
Foot, the present invention has built a kind of interior environmental monitoring platform, so as to solve above-mentioned technical problem.
Fig. 1 is the block diagram of the interior environmental monitoring platform according to embodiment of the present invention, described flat
Platform includes FLASH storage chips, live fluoroscopic equipment and live play equipment.
Wherein, the FLASH storage chips are arranged in compartment, for prestoring first weight coefficient, described
Second weight coefficient and the 3rd weight coefficient, the live fluoroscopic equipment is arranged on car body top, for towards compartment
Face carries out the live fluoroscopic of the jam situation of each predeterminable area, and the live play equipment is arranged in compartment, for playing
The speech play file related to the jam situation of each predeterminable area.
Then, continue that the concrete structure of the interior environmental monitoring platform of the present invention is further detailed.
The platform also includes：
Parallel acquisition equipment, as shown in Fig. 2 for carrying out real time image collection, including data inspection to interior environment
Measurement equipment, DAF, data output interface and predetermined number, parallel arrangement of multiple CCD optical-electrical converters.
The multiple CCD optical-electrical converters carry out image data acquiring towards interior environment, and each CCD photoelectricity turns
Parallel operation exports an initial environment image；The data-detection apparatus is connected with the multiple CCD optical-electrical converters respectively, is used for
Multiple initial environment images corresponding to reception, contrast, signal to noise ratio and the dynamic model of each initial environment image are extracted respectively
Enclose；The DAF is connected with the FLASH storage chips and the data-detection apparatus respectively, for based on each
Contrast, signal to noise ratio and the dynamic range of individual initial environment image determine that the signal quality balance of each initial environment image refers to
Number；
Wherein, contrast, signal to noise ratio and dynamic range based on each initial environment image determine each initial ring
The signal quality balance index of border image includes：The contrast of each initial environment image and the first weight coefficient are multiplied to
The first product is obtained, the signal to noise ratio of each initial environment image and the second weight coefficient are multiplied to obtain the second product, will
The dynamic range of each initial environment image and the 3rd weight coefficient are multiplied to obtain the 3rd product, by first product,
Second product and the 3rd product addition weigh index to obtain the signal quality；The data output interface with
The DAF connection, for the signal quality balance index of each initial environment image to be compared, by signal
Quality is weighed index highest initial environment image and exported as high definition ambient image.
The platform also includes：
First conversion equipment, it is connected with parallel acquisition equipment, for receiving high definition ambient image, to the high definition environment map
The pixel value of each pixel of picture performs logarithmic transformation to obtain corresponding logarithm value, by the institute of the high definition ambient image
By pixel, according to pixel, putting in order in the high definition ambient image forms two-dimensional array to corresponding logarithm value respectively
To be exported as logarithmic transformation array；
Second conversion equipment, it is connected with first conversion equipment, for receiving the logarithmic transformation array, and using bent
Wave conversion decomposes to the logarithmic transformation array, to obtain the high frequency conversion array of the high definition ambient image and described
The low frequency transform array of high definition ambient image；
Break up processing equipment, be connected with second conversion equipment, for the high frequency conversion to the high definition ambient image
Array performs bilateral filtering processing to obtain the first processing array, and light is performed to the low frequency transform array of the high definition ambient image
Described first processing array and the second processing array are combined into described by sliding filtering process with obtaining second processing array
Sharpening ambient image corresponding to high definition ambient image；Wherein, the differentiation processing equipment handles array and institute by described first
State second processing array be combined into the high definition ambient image corresponding to sharpening ambient image include：The differentiation processing equipment
Described first processing array and the second processing array are combined into by the high definition ambient image pair based on bent reconstructed wave pattern
The sharpening ambient image answered；
Human body target detection device, it is connected with the differentiation processing equipment, for carrying out human body to sharpening ambient image
Identify to obtain multiple human body targets in sharpening ambient image；
Human body target location equipment, it is connected with the human body target detection device, for each human body target, being based on
Its depth of field in sharpening ambient image determines its real time position in interior；
Congestion analytical equipment, it is connected with the human body target location equipment, based on each human body target in compartment
The real time position in portion, determine the human body quantity in each predeterminable area in compartment, when the human body quantity in predeterminable area be more than etc.
When predetermined number threshold value, it is congestion regions to determine predeterminable area, when the human body quantity in predeterminable area is more than or equal to present count
When measuring the half of threshold value and being less than predetermined number threshold value, it is normal region to determine predeterminable area, when the human body number in predeterminable area
When amount is less than the half of predetermined number threshold value, it is clear area to determine predeterminable area；
Wherein, the live fluoroscopic equipment is connected with the congestion analytical equipment, for being carried out towards compartment ground
The live fluoroscopic of the jam situation of each predeterminable area, wherein, when predeterminable area is congestion regions, projected color is red,
When predeterminable area is normal region, projected color is yellow, and when predeterminable area is clear area, projected color is green；
The project content of the live fluoroscopic equipment also includes each arrow that clear area is pointed to from congestion regions；
Wherein, for each initial environment image, its contrast is higher, and signal quality balance index is bigger, its noise
Than higher, signal quality balance index is bigger, and its dynamic range is bigger, and signal quality balance index is bigger.
In the platform：
The distribution situation of each predeterminable area is in compartment：The direction advanced along compartment, compartment is divided horizontally into respectively
Individual predeterminable area, the area of each predeterminable area are identical.
In the platform：
The human body target detection device, the human body target location equipment and the congestion analytical equipment are arranged on
In the control room in compartment.
In the platform：
The parallel acquisition equipment is arranged on car body top.
And in the platform：
The live play equipment is connected with the congestion analytical equipment, is gathered around for playing with each predeterminable area
The related speech play file of stifled situation；Wherein, the congestion analytical equipment gets the predeterminable area for congestion regions
When, live play device plays speech play file corresponding with the positional information of the predeterminable area for clear area.
In addition, image filtering, i.e., press down under conditions of image detail feature is retained as far as possible to the noise of target image
System, is indispensable operation in image preprocessing, and the quality of its treatment effect will directly influence successive image processing and divide
The validity and reliability of analysis.
Due to the imperfection of imaging system, transmission medium and recording equipment etc., digital picture is in its formation, transmission log mistake
Often polluted in journey by a variety of noises.In addition, some links in image procossing when the picture object inputted and are not so good as pre-
Also noise can be introduced when thinking in result images.These noises often show as one on image and cause the isolated of stronger visual effect
Pixel or block of pixels.Typically, noise signal it is uncorrelated to the object to be studied it occur with useless message form, upset figure
The observable information of picture.For data image signal, psophometer is either large or small extreme value, and these extreme values are acted on by plus-minus
On the true gray value of image pixel, the interference of bright, dim spot is caused to image, greatly reduces picture quality, influence image restoration,
The progress of the follow-up work such as segmentation, feature extraction, image recognition.A kind of wave filter for effectively suppressing noise is constructed to must take into consideration
Two basic problems：The noise in target and background can effectively be removed；Meanwhile can protect well image object shape,
Size and specific geometry and topological features.
One kind in conventional image filtering pattern is nonlinear filter, it is, in general, that when signal spectrum and noise frequency
Such as the noise as caused by mission nonlinear or non-gaussian be present and make an uproar when composing aliasing or when containing nonadditivity noise in signal
Sound etc.), traditional linear filter technology, such as Fourier conversion, while noise is filtered out, always blurred picture is thin in some way
Section (such as edge) and then the extraction property reduction for causing the positioning precision and feature as linear character.And nonlinear filter is
Based on a kind of Nonlinear Mapping relation to input signal, often a certain specific noise approx can be mapped as zero and retained
Signal wants feature, thus it can overcome the weak point of linear filter to a certain extent.
Using the interior environmental monitoring platform of the present invention, underused for interior space in the prior art
Technical problem, by using multiple high-precision image capture devices and image processing equipment, accurately determine each in compartment
Passengers quantity in individual region, so that it is determined that the congestion level in regional, and effectively guided using projection pattern, it is
The directional guide of the stream of people provides effective settlement mechanism in compartment.
It is understood that although the present invention is disclosed as above with preferred embodiment, but above-described embodiment and it is not used to
Limit the present invention.For any those skilled in the art, without departing from the scope of the technical proposal of the invention,
Many possible changes and modifications are all 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 change.Therefore, every content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modifications, equivalents, and modifications made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (1)
1. a kind of interior environmental monitoring platform, including FLASH storage chips, live fluoroscopic equipment and live play equipment,
The FLASH storage chips are arranged in compartment, for prestoring the first weight coefficient, the second weight coefficient and the 3rd weight
Coefficient, the live fluoroscopic equipment are arranged on car body top, for carrying out the congestion feelings of each predeterminable area towards compartment ground
The live fluoroscopic of condition, the live play equipment are arranged in compartment, for playing the jam situation phase with each predeterminable area
The speech play file of pass；
Characterized in that, the platform also includes：
Parallel acquisition equipment, for carrying out real time image collection, including data-detection apparatus, data analysis to interior environment
Equipment, data output interface and predetermined number, parallel arrangement of multiple CCD optical-electrical converters, the multiple CCD opto-electronic conversions
Device carries out image data acquiring towards interior environment, and each CCD optical-electrical converter exports an initial environment image；Institute
Data-detection apparatus is stated to be connected with the multiple CCD optical-electrical converters respectively, for receiving corresponding multiple initial environment images,
Contrast, signal to noise ratio and the dynamic range of each initial environment image are extracted respectively；The DAF respectively with institute
State FLASH storage chips to connect with the data-detection apparatus, for the contrast based on each initial environment image, noise
Than determining that the signal quality of each initial environment image weighs index with dynamic range；
Wherein, contrast, signal to noise ratio and dynamic range based on each initial environment image determine each initial environment figure
The signal quality balance index of picture includes：The contrast of each initial environment image and the first weight coefficient are multiplied to obtain
First product, the signal to noise ratio of each initial environment image and the second weight coefficient are multiplied to obtain the second product, will be each
The dynamic range of individual initial environment image is multiplied to obtain the 3rd product with the 3rd weight coefficient, by first product, described
Second product and the 3rd product addition weigh index to obtain the signal quality；The data output interface with it is described
DAF connects, for the signal quality balance index of each initial environment image to be compared, by signal quality
Weigh index highest initial environment image to export as high definition ambient image；
First conversion equipment, it is connected with parallel acquisition equipment, for receiving high definition ambient image, to the high definition ambient image
The pixel value of each pixel performs logarithmic transformation to obtain corresponding logarithm value, by all pictures of the high definition ambient image
Corresponding logarithm value puts in order composition two-dimensional array to make to vegetarian refreshments according to pixel in the high definition ambient image respectively
Exported for logarithmic transformation array；
Second conversion equipment, it is connected with first conversion equipment, becomes for receiving the logarithmic transformation array, and using bent ripple
Change and the logarithmic transformation array is decomposed, to obtain the high frequency conversion array of the high definition ambient image and the high definition
The low frequency transform array of ambient image；
Break up processing equipment, be connected with second conversion equipment, for the high frequency conversion array to the high definition ambient image
Bilateral filtering processing is performed to obtain the first processing array, smooth filter is performed to the low frequency transform array of the high definition ambient image
Described first processing array and the second processing array are combined into the high definition by ripple processing to obtain second processing array
Sharpening ambient image corresponding to ambient image；Wherein, the differentiation processing equipment described first will handle array and described the
Two processing arrays be combined into the high definition ambient image corresponding to sharpening ambient image include：The differentiation processing equipment is based on
Described first processing array and the second processing array are combined into corresponding to the high definition ambient image by bent reconstructed wave pattern
Sharpening ambient image；
Human body target detection device, it is connected with the differentiation processing equipment, for carrying out human bioequivalence to sharpening ambient image
To obtain multiple human body targets in sharpening ambient image；
Human body target location equipment, be connected with the human body target detection device, for each human body target, based on its
The depth of field in sharpening ambient image determines its real time position in interior；
Congestion analytical equipment, it is connected with the human body target location equipment, based on each human body target in interior
Real time position, the human body quantity in each predeterminable area in compartment is determined, when the human body quantity in predeterminable area is more than or equal in advance
If during amount threshold, it is congestion regions to determine predeterminable area, when the human body quantity in predeterminable area is more than or equal to predetermined number threshold
The half of value and when being less than predetermined number threshold value, it is normal region to determine predeterminable area, when the human body quantity in predeterminable area is small
When the half of predetermined number threshold value, it is clear area to determine predeterminable area；
Wherein, the live fluoroscopic equipment is connected with the congestion analytical equipment, each for being carried out towards compartment ground
The live fluoroscopic of the jam situation of predeterminable area, wherein, when predeterminable area is congestion regions, projected color is red, when pre-
If region is normal region, projected color is yellow, and when predeterminable area is clear area, projected color is green；It is described
The project content of live fluoroscopic equipment also includes each arrow that clear area is pointed to from congestion regions；
Wherein, for each initial environment image, its contrast is higher, and signal quality balance index is bigger, and its signal to noise ratio is got over
Height, signal quality balance index is bigger, and its dynamic range is bigger, and signal quality balance index is bigger.
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| CN201711334935.3A CN107820065A (en) | 2017-08-18 | 2017-08-18 | Internal image monitor supervision platform |
| CN201710711202.0A CN107317982B (en) | 2017-08-18 | 2017-08-18 | Interior environmental monitoring platform |
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| CN109658654B (en) * | 2019-01-14 | 2021-01-29 | 青岛金中联科技发展有限公司 | On-site directional monitoring platform |
| CN110341766B (en) * | 2019-06-20 | 2020-05-05 | 郭云 | Self-adaptive duration adjustment platform |
| CN110636232B (en) * | 2019-09-05 | 2020-06-23 | 北方工业大学 | Video playing content selection system and method |
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| CN1604139A (en) * | 2004-10-28 | 2005-04-06 | 上海交通大学 | Method for constructing image fusion estimation system |
| CN102724390A (en) * | 2011-03-29 | 2012-10-10 | 赵山山 | Method for detecting crowding degree in train compartment and system for guiding stream of people |
| WO2015148604A1 (en) * | 2014-03-25 | 2015-10-01 | Massachusetts Institute Of Technology | Space-time modulated active 3d imager |
| CN204993663U (en) * | 2015-08-28 | 2016-01-20 | 中电科二十二所（青岛）天博信息科技公司 | Subway carriage passenger flow density monitored control system |
| CN105574503A (en) * | 2015-12-16 | 2016-05-11 | 陕西科技大学 | Device and method for querying subway passenger distribution and full rate in real time |
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| CN107820065A (en) | 2018-03-20 |
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