CN111047857B - Smart city real-time management and control system - Google Patents
Smart city real-time management and control system Download PDFInfo
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- CN111047857B CN111047857B CN201910336367.3A CN201910336367A CN111047857B CN 111047857 B CN111047857 B CN 111047857B CN 201910336367 A CN201910336367 A CN 201910336367A CN 111047857 B CN111047857 B CN 111047857B
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- G06V20/53—Recognition of crowd images, e.g. recognition of crowd congestion
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- G—PHYSICS
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
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Abstract
The invention relates to a smart city real-time management and control system, which comprises: a parameter extraction device for performing face recognition on each face region in the wavelet filtered image based on the facial features of the child to obtain one or more child face regions; and the signal lamp control equipment is used for controlling signal lamps corresponding to the sidewalks, and determining the turn-on duration of green lamps in the signal lamps corresponding to the sidewalks based on the number of the child face areas when the number of the child face areas exceeds the limit, wherein the more the number of the child face areas is, the longer the turn-on duration of the determined green lamps is. The smart city real-time control system is effective in control and has a certain self-adaptive control level. Since the green light on duration proportional to the number of children is determined when the number of children waiting for the sidewalk to pass is excessive, all children are released as quickly as possible.
Description
Technical Field
The invention relates to the field of smart cities, in particular to a smart city real-time management and control system.
Background
The smart city is often crossed with the regional development concepts such as digital city, perception city, wireless city, smart city, ecological city and low-carbon city, and the smart city is even mixed with the industry informatization concepts such as electronic government affairs, intelligent transportation and smart power grid. The interpretation of the concept of the smart city is also always emphasized, some views consider that the key is technical application, some views consider that the key is network construction, some views consider that the key is human participation, some views consider that the key is smart effect, and some advanced cities for city information construction emphasize human-oriented and sustainable innovation. In general, wisdom is not just intelligence. The smart city is not only another way of the smart city, or intelligent application of information technology, but also includes the connotations of human intelligence participation, human-oriented, sustainable development and the like. The source of development of this concept is integrated and a summary of regional information practices worldwide.
Disclosure of Invention
The invention needs to have the following two key points:
(1) when the number of children waiting for the sidewalk to pass is excessive, determining the green light turn-on duration proportional to the number of the children based on the number of the children, so that all the children are released as quickly as possible;
(2) and carrying out consistency matching on each contour of each target sub-image in the image so as to determine the corresponding consistency degree based on the matching result, and selecting whether to execute arithmetic mean filtering processing or not based on the consistency degree, so that the image processing link is reduced when the consistency degree is not over-limited, namely the image data volume is large, and the power consumption of the whole image processing system is prevented from being overlarge.
According to an aspect of the present invention, there is provided a smart city real-time management and control system, the system including: the spherical camera is arranged at the traffic intersection, and is used for acquiring image data of people waiting for the passage of the sidewalk against the sidewalk so as to obtain and output a corresponding instant acquisition image.
More specifically, in the smart city real-time management and control system, the system further includes: and the self-adaptive recursive filtering equipment is connected with the spherical camera and is used for receiving the instant acquisition image, executing self-adaptive recursive filtering processing on the instant acquisition image to obtain a recursive filtering image and outputting the recursive filtering image.
More specifically, in the smart city real-time management and control system, the system further includes: and the target separation equipment is used for receiving the recursive filtering image and executing a target identification action on the recursive filtering image so as to obtain each target sub-image in which each target in the recursive filtering image is respectively positioned.
More specifically, in the smart city real-time management and control system, the system further includes: the contour identification device is connected with the target separation device and used for obtaining the contour of each target sub-image and performing consistency matching on each contour of each target sub-image so as to determine the corresponding consistency degree based on the matching result; the signal extraction equipment is connected with the contour recognition equipment and is used for sending out a first driving signal when the consistency degree exceeds the limit, and otherwise, sending out a second driving signal; in the contour recognition apparatus, consistency matching respective contours of respective target sub-images to determine corresponding consistency degrees based on matching results includes: the more consistent each contour of each target sub-image is, the higher the corresponding consistency degree is determined to be; the color correction device is connected with the self-adaptive recursive filtering device and used for receiving the recursive filtering image and executing color correction processing on the recursive filtering image to obtain and output a corresponding color correction image; and the bicubic interpolation device is connected with the color correction device and is used for executing bicubic interpolation operation of a 16 x 16 pixel neighborhood on the received color correction image to obtain a corresponding bicubic interpolation image.
The smart city real-time control system is effective in control and has a certain self-adaptive control level. Since the green light on duration proportional to the number of children is determined when the number of children waiting for the sidewalk to pass is excessive, all children are released as quickly as possible.
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Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram illustrating an external appearance of a dome camera of a smart city real-time management and control system according to an embodiment of the present invention.
Detailed Description
Embodiments of the smart city real-time management and control system according to the present invention will be described in detail with reference to the accompanying drawings.
The road traffic signal lamp is a category of traffic safety products, and is an important tool for strengthening road traffic management, reducing traffic accidents, improving road use efficiency and improving traffic conditions. The system is suitable for intersections such as crossroads, T-shaped intersections and the like, is controlled by a road traffic signal controller, and guides vehicles and pedestrians to safely and orderly pass. An LED (light emitting diode) is a novel light source developed and produced in recent years, and has the advantages of low power consumption (the current is only 10-20 mA), high brightness (the light intensity can reach ten thousand mcd), small volume (the diameter can reach 3mm at the minimum), light weight (one LED only weighs a few tenths of a gram), long service life (the average service life is 10 ten thousand hours) and the like. At present, incandescent lamps and low-voltage halogen tungsten lamps are gradually replaced by the fluorescent lamp to manufacture road traffic signal lamps.
At present, for signal lamps of schools in middle and primary schools or kindergartens nearby, in the peak time period of school and school, a large number of children are blocked behind sidewalks and wait for green light to pass, traffic accidents are easily caused, the green light passing time of all current signal lamps is a default constant, and self-adaptive change due to excessive children is avoided.
In order to overcome the defects, the invention builds the smart city real-time management and control system, and can effectively solve the corresponding technical problems.
The smart city real-time management and control system shown according to the embodiment of the invention comprises:
as shown in fig. 1, the spherical camera is arranged at a traffic intersection, and acquires image data of people waiting for passage of a sidewalk against the sidewalk to obtain and output a corresponding instant acquisition image.
Next, the specific structure of the smart city real-time management and control system of the present invention will be further described.
The smart city real-time management and control system can further comprise:
and the self-adaptive recursive filtering equipment is connected with the spherical camera and is used for receiving the instant acquisition image, executing self-adaptive recursive filtering processing on the instant acquisition image to obtain a recursive filtering image and outputting the recursive filtering image.
The smart city real-time management and control system can further comprise:
and the target separation equipment is used for receiving the recursive filtering image and executing a target identification action on the recursive filtering image so as to obtain each target sub-image in which each target in the recursive filtering image is respectively positioned.
The smart city real-time management and control system can further comprise:
the contour identification device is connected with the target separation device and used for obtaining the contour of each target sub-image and performing consistency matching on each contour of each target sub-image so as to determine the corresponding consistency degree based on the matching result;
the signal extraction equipment is connected with the contour recognition equipment and is used for sending out a first driving signal when the consistency degree exceeds the limit, and otherwise, sending out a second driving signal;
in the contour recognition apparatus, consistency matching respective contours of respective target sub-images to determine corresponding consistency degrees based on matching results includes: the more consistent each contour of each target sub-image is, the higher the corresponding consistency degree is determined to be;
the color correction device is connected with the self-adaptive recursive filtering device and used for receiving the recursive filtering image and executing color correction processing on the recursive filtering image to obtain and output a corresponding color correction image;
a bicubic interpolation device connected to the color correction device for performing a bicubic interpolation operation of a 16 × 16 pixel neighborhood on the received color correction image to obtain a corresponding bicubic interpolation image;
the arithmetic mean filtering device is respectively connected with the signal extraction device and the bicubic interpolation device, and is used for performing arithmetic mean filtering processing on the received bicubic interpolation image to obtain and output a corresponding arithmetic mean filtering image when receiving the first driving signal, and is also used for outputting the bicubic interpolation image as an arithmetic mean filtering image when receiving the second driving signal;
the maximum value filtering device is connected with the arithmetic mean value filtering device and used for receiving the arithmetic mean value filtering image and executing maximum value filtering processing on the arithmetic mean value filtering image so as to obtain and output a corresponding maximum value filtering image;
the wavelet filtering device is connected with the maximum value filtering device and used for receiving the maximum value filtering image and executing wavelet filtering processing on the maximum value filtering image so as to obtain and output a corresponding wavelet filtering image;
the parameter extraction device is connected with the wavelet filtering device and is used for respectively carrying out facial recognition on each face region in the wavelet filtering image based on the facial features of the child so as to obtain one or more facial regions of the child;
the signal lamp control equipment is used for controlling signal lamps corresponding to sidewalks, is connected with the parameter extraction equipment and is used for determining the green lamp starting duration time in the signal lamps corresponding to the sidewalks based on the number of the child face areas in the wavelet filtering images when the number of the child face areas in the wavelet filtering images exceeds the number of the child face areas;
wherein, in the signal light control apparatus, determining the green light on-duration in the signal light corresponding to the sidewalk based on the number of the child face area in the wavelet filtered image includes: the more the number of the child face regions in the wavelet filtering image is, the longer the green light on duration time in the signal light corresponding to the sidewalk is determined to be;
the signal lamp control equipment is further used for setting the green lamp starting duration time in the signal lamp corresponding to the sidewalk as a default constant when the number of the child face areas in the wavelet filtering image does not exceed the limit.
The smart city real-time management and control system can further comprise:
and the first extraction equipment is connected with the spherical camera and used for receiving the instant acquisition image, carrying out an average value calculation operation on the gray values of all pixel points of the instant acquisition image so as to obtain a first gray average value and outputting the first gray average value.
The smart city real-time management and control system can further comprise:
the second extraction device is used for carrying out the average value operation on the gray values of all the pixel points of the first reference image so as to obtain a second gray average value and outputting the second gray average value, performing an averaging operation on the gray values of all the pixel points of the second reference image to obtain a third gray average value, and outputting the third gray average value, performing an averaging operation on the gray values of all the pixel points of the third reference image to obtain a fourth gray average value, and outputting the fourth gray average value, wherein the first reference image is an image of a non-moving object shot by the spherical camera in advance according to a set shooting direction, the second reference image is an image without a moving object, which is shot by the spherical camera after deviating from the left side according to the set shooting direction in advance, and the third reference image is an image without a moving target, which is shot by the spherical camera after the spherical camera deviates from the right side according to the set shooting direction in advance.
The smart city real-time management and control system can further comprise:
and the first processing device is respectively connected with the first extraction device and the second extraction device and used for receiving the first gray mean value, the second gray mean value, the third gray mean value and the fourth gray mean value, calculating a difference value between the first gray mean value and the second gray mean value, sending a direction change signal when the difference value exceeds a limit, respectively matching the first gray mean value with the third gray mean value and the fourth gray mean value, and sending a left-direction shift signal when the matching degree with the third gray mean value is greater than that with the fourth gray mean value.
The smart city real-time management and control system can further comprise:
and the first display equipment is arranged on one side of the spherical camera, is connected with the first processing equipment and is used for displaying the highlight character warning information corresponding to the leftward deviation signal on site when the leftward deviation signal is received.
Among the real-time management and control system of wisdom city:
in the first processing device, when the matching degree with the third gray average value is less than or equal to the matching degree with the fourth gray average value, a right-direction offset signal is sent out;
and the first display device is also used for displaying highlighted text warning information corresponding to the right deviation signal on site when the right deviation signal is received.
In addition, the term Wavelet (Wavelet) is a small waveform as the name implies. By "small" it is meant that he has attenuating properties; the term "wave" refers to its wave nature, the amplitude of which is in the form of an oscillation between positive and negative phases. Compared with Fourier transform, the wavelet transform is a local analysis of time (space) frequency, and the wavelet transform gradually refines signals (functions) in a multi-scale mode through telescopic translation operation, finally achieves time subdivision at high frequency and frequency subdivision at low frequency, can automatically adapt to the requirement of time-frequency signal analysis, can focus on any details of signals, solves the problem of difficulty of Fourier transform, and becomes a major breakthrough in a scientific method following the Fourier transform. Wavelet transforms have been known as "mathematical microscopes".
The application of wavelet analysis is closely coupled with the theoretical study of wavelet analysis. He has achieved remarkable achievements in the field of the scientific and technical information industry. Electronic information technology is an important area of six high and new technologies, and its important aspect is image and signal processing. Nowadays, signal processing has become an important part of the modern scientific and technical work, and the purpose of signal processing is: accurate analysis, diagnosis, encoding compression and quantization, fast transfer or storage, accurate reconstruction (or recovery). From a mathematical point of view, the signal and image processing can be considered as signal processing (the image can be considered as a two-dimensional signal) together, and can be attributed to the signal processing problem in many applications of many analyses in wavelet analysis. For signals whose properties are stable and invariant over time, the ideal tool for processing remains fourier analysis. However, most of the signals in practical applications are unstable, and a tool particularly suitable for unstable signals is wavelet analysis.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (2)
1. The utility model provides a real-time management and control system in wisdom city which characterized in that includes:
the spherical camera is arranged at the traffic intersection, and is used for acquiring image data of people waiting for the passage of the sidewalk against the sidewalk so as to obtain and output a corresponding instant acquisition image;
the self-adaptive recursive filtering equipment is connected with the spherical camera and used for receiving the instant acquisition image, executing self-adaptive recursive filtering processing on the instant acquisition image to obtain a recursive filtering image and outputting the recursive filtering image;
the target separation equipment is used for receiving the recursive filtering image and executing a target identification action on the recursive filtering image so as to obtain each target sub-image in which each target in the recursive filtering image is respectively positioned;
the contour identification device is connected with the target separation device and used for obtaining the contour of each target sub-image and performing consistency matching on each contour of each target sub-image so as to determine the corresponding consistency degree based on the matching result;
the signal extraction equipment is connected with the contour recognition equipment and is used for sending out a first driving signal when the consistency degree exceeds the limit, and otherwise, sending out a second driving signal;
in the contour recognition apparatus, consistency matching respective contours of respective target sub-images to determine corresponding consistency degrees based on matching results includes: the more consistent each contour of each target sub-image is, the higher the corresponding consistency degree is determined to be;
the color correction device is connected with the self-adaptive recursive filtering device and used for receiving the recursive filtering image and executing color correction processing on the recursive filtering image to obtain and output a corresponding color correction image;
a bicubic interpolation device connected to the color correction device for performing a bicubic interpolation operation of a 16 × 16 pixel neighborhood on the received color correction image to obtain a corresponding bicubic interpolation image;
the arithmetic mean filtering device is respectively connected with the signal extraction device and the bicubic interpolation device, and is used for performing arithmetic mean filtering processing on the received bicubic interpolation image to obtain and output a corresponding arithmetic mean filtering image when receiving the first driving signal, and is also used for outputting the bicubic interpolation image as an arithmetic mean filtering image when receiving the second driving signal;
the maximum value filtering device is connected with the arithmetic mean value filtering device and used for receiving the arithmetic mean value filtering image and executing maximum value filtering processing on the arithmetic mean value filtering image so as to obtain and output a corresponding maximum value filtering image;
the wavelet filtering device is connected with the maximum value filtering device and used for receiving the maximum value filtering image and executing wavelet filtering processing on the maximum value filtering image so as to obtain and output a corresponding wavelet filtering image;
the parameter extraction device is connected with the wavelet filtering device and is used for respectively carrying out facial recognition on each face region in the wavelet filtering image based on the facial features of the child so as to obtain one or more facial regions of the child;
the signal lamp control equipment is used for controlling signal lamps corresponding to sidewalks, is connected with the parameter extraction equipment and is used for determining the green lamp starting duration time in the signal lamps corresponding to the sidewalks based on the number of the child face areas in the wavelet filtering images when the number of the child face areas in the wavelet filtering images exceeds the number of the child face areas;
wherein, in the signal light control apparatus, determining the green light on-duration in the signal light corresponding to the sidewalk based on the number of the child face area in the wavelet filtered image includes: the more the number of the child face regions in the wavelet filtering image is, the longer the green light on duration time in the signal light corresponding to the sidewalk is determined to be;
the signal lamp control equipment is further used for setting the green lamp starting duration time in the signal lamp corresponding to the sidewalk as a default constant when the number of the child face areas in the wavelet filtering image does not exceed the limit.
2. The smart city real-time management and control system of claim 1, wherein the system further comprises:
and the first extraction equipment is connected with the spherical camera and used for receiving the instant acquisition image, carrying out an average value calculation operation on the gray values of all pixel points of the instant acquisition image so as to obtain a first gray average value and outputting the first gray average value.
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| CN106446791B (en) * | 2016-08-31 | 2018-07-03 | 北京新兴华安智慧科技有限公司 | Smart city common monitoring system |
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