CN105788267A - Bus information acquisition system based on distribution box - Google Patents
Bus information acquisition system based on distribution box Download PDFInfo
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- CN105788267A CN105788267A CN201610296440.5A CN201610296440A CN105788267A CN 105788267 A CN105788267 A CN 105788267A CN 201610296440 A CN201610296440 A CN 201610296440A CN 105788267 A CN105788267 A CN 105788267A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
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- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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Abstract
The invention relates to a bus information acquisition system based on a distribution box. The bus information acquisition system comprises a distribution box shell, an illumination intensity detector, a high-definition camera, a distribution box communication interface and an AVR32 chip. The illumination intensity detector, the high-definition camera, the distribution box communication interface and the AVR32 chip are arranged on the distribution box shell. The illumination intensity detector, the high-definition camera and the AVR32 chip are used for determining the number of pedestrians of a traffic intersection. The distribution box communication interface is used for determining and transmitting the passenger flow index of the traffic intersection based on the number of the pedestrians. With application of the bus information acquisition system based on the distribution box, passenger flow data acquisition can be performed by fully utilizing the existing traffic intersection distribution box so that important reference information can be provided for departing of bus fleets.
Description
The present invention is application number is 2016101790158, the applying date be March 27, denomination of invention in 2016 is the divisional application of the patent of " the bus information acquisition system based on distribution box ".
Technical field
The present invention relates to distribution box field, particularly relate to a kind of bus information acquisition system based on distribution box.
Background technology
Distribution box can be classified as follows by architectural feature and purposes:
(1) the board-like distribution box of stationary plane, often claims switchboard or switchboard.He is a kind of open-type distribution box having panel to block, and front has protective action, the back side and side to remain to touch live part, and degree of protection is low, is only used for the industrial and mining establishment that power supply continuity and reliability requirement is relatively low, is used as transformer room's centrally connected power supply.
(2) protection (namely closed) distribution box, refers to except installed surface, a kind of low-tension distribution box that other all sides are all sealed.The electrical equipments such as the switch of this chest, protection and Monitoring and Controlling, are installed in a closure made with steel or insulant, reliable wall or install from wall.Quarantine measures can be not added with between every loop, it would however also be possible to employ metallic plate or the insulation board of ground connection are isolated in case.Usual door has mechanical interlocking with master switch operation.Additionally go back protected type bench-type distribution box (i.e. control station), equipped with electrical equipment such as control, measurement, signals on panel.Protection distribution box is mainly used as the power distribution equipment that technique is on-the-spot.
(3) drawer-type distribution box.This kind of distribution box adopts steel plate to make closure, and the electric elements in line loop are all arranged in the drawer that can extract out, constitutes and can complete a certain class and power the functional unit of task.Between functional unit and bus or cable, the feature board made with the metallic plate of ground connection or plastics separates, and forms bus, functional unit and three regions of cable.Also quarantine measures are had between each functional unit.Drawer-type distribution box has higher reliability, safety and interchangeability, is more advanced distribution box, and distribution box majority refers to drawer-type distribution box.They are applicable to require industrial and mining establishment, the skyscraper that power supply reliability is higher, as central controlled distribution center.
(4) power, light distribution box.It mostly is closed right angle setting.Because use occasion is different, shell protection grade is also different.They are mainly as the power distribution equipment of industrial and mining establishment production scene.
Being typically in traffic intersection place and all arrange distribution box, the traffic lights for traffic intersection control, or for the Street lamps control near traffic intersection, it is also possible to for providing electric power support for the capture apparatus violating the regulations near traffic intersection, urban service equipment.But the effect of traffic intersection distribution box of the prior art is only limitted to this, traffic intersection distribution box not yet occurs for providing the technical scheme of the passenger flow index required for bus.
Therefore, need a kind of new bus guidance system, the distribution box at each traffic intersection place can be made full use of, make it as the collection carrier of neighbouring communication equipment quantity, intelligent passenger flow information service is provided for the bus near traffic intersection, so that neighbouring bus is dispatched a car, website adjusts the density of dispatching a car of oneself in real time, thus provide bus service more easily for urbanite cost-effective simultaneously.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of bus information acquisition system based on distribution box, distribution box near already present traffic intersection is transformed, integrated high-precision image recognition apparatus and Wireless Telecom Equipment think that the bus dispatching platform of far-end provides the passenger flow service near traffic intersection, it is simultaneously introduced bus dispatching platform for determining the density of dispatching a car of bus circuit near traffic intersection address based on passenger flow index, and by wireless communication link, the density of dispatching a car determined is sent to the bus fleet management platform of bus circuit ownership near traffic intersection address.
According to an aspect of the present invention, provide a kind of bus information acquisition system based on distribution box, described system includes distribution box shell, intensity of illumination detector, high-definition camera, distribution box communication interface and AVR32 chip, intensity of illumination detector, high-definition camera, distribution box communication interface and AVR32 chip are all disposed within distribution box shell, intensity of illumination detector, high-definition camera and AVR32 chip are for determining pedestrian's quantity at traffic intersection place, and distribution box communication interface for determining the passenger flow index concurrently sending traffic intersection place based on pedestrian's quantity.
More specifically, described based in the bus information acquisition system of distribution box, including: distribution box main body, including connecting terminal block, remote manual control selects handle, jump and close position indicator, divide-shut brake button, analog input interface, switch value input interface, mains-supplied interface, stand-by power supply, distribution box communication interface, distribution box shell and AVR32 chip, AVR32 chip and connecting terminal block, remote manual control selects handle, jump and close position indicator, divide-shut brake button, analog input interface, switch value input interface, mains-supplied interface, stand-by power supply and distribution box communication interface connect respectively；Remote manual control selects handle for realizing the switching of manual operation on the spot and remote manipulation on the spot；Analog input interface includes signal conditioning circuit, genlock circuit and analog to digital conversion circuit；Stand-by power supply is ultracapacitor, and its operating temperature is 40 degrees below zero between 70 degree above freezing, and efficiency for charge-discharge is between 90% to 95%；Distribution box shell adopts corrosion resistant stainless steel material；Intensity of illumination detector, is arranged on distribution box shell, for detecting the real-time lighting intensity of traffic intersection position, determines and export the intensity of illumination grade of correspondence according to real-time lighting intensity；High-definition camera, is arranged on distribution box shell, and for traffic intersection is shot, to obtain high definition crossing image, the resolution of high definition crossing image is 1920 × 1080；FLASH memory, it is arranged in distribution box shell, it is connected with connecting terminal block, for prestoring multiple benchmark intensity of illumination crossings image, the corresponding intensity of illumination grade of each benchmark intensity of illumination crossing image, each benchmark intensity of illumination crossing image is that traffic intersection is carried out shooting the image obtained in advance by high-definition camera under without any pedestrian's state under corresponding intensity of illumination grade, FLASH memory is additionally operable to prestore binary-state threshold, reference edge feature, base linearity feature, reference center's feature and benchmark are to corner characteristics, reference edge feature, base linearity feature, reference center's feature and benchmark diagonal angle are characterized as and extract acquisition after benchmark pedestrian's image carries out Haar wavelet transformation；Foreground selection equipment, being connected respectively with connecting terminal block, intensity of illumination detector and FLASH memory, the intensity of illumination grade based on the output of current time intensity of illumination detector is found the benchmark intensity of illumination crossing image of correspondence in FLASH memory and exports as target background image；nullLive image splitting equipment，With connecting terminal block、High-definition camera、FLASH memory and Foreground selection equipment connect respectively，High definition crossing image and the high definition crossing image of current time upper one second of current time is received by high-definition camera，Respectively as the first high definition crossing image and the second high definition crossing image，The gray value of each pixel of the first high definition crossing image is deducted the gray value of the pixel of correspondence position in the second high definition crossing image and takes absolute value to obtain image difference absolute value，When image difference absolute value is be more than or equal to binary-state threshold，The respective pixel of the first high definition crossing image is confirmed as active pixel，Otherwise，The respective pixel of the first high definition crossing image is confirmed as static pixel，The image of all active pixel composition in first high definition crossing image is exported as live image，Live image is made up of one or more zones of action；Morphological image processes equipment, it is connected with connecting terminal block, live image splitting equipment, for receiving live image, and each zone of action is carried out denoising to obtain denoising subimage, fill up denoising subimage interior void and connect in denoising subimage breakpoint to obtain shaping subimage, export one or more shaping subimage；Wavelet transformation device, processes equipment with connecting terminal block, morphological image and is connected, to each shaping subimage execution Haar wavelet transformation, to extract the edge feature of each shaping subimage, linear character, central feature and to corner characteristics；AVR32 chip is connected respectively with connecting terminal block, Wavelet transformation device and FLASH memory, by the edge feature of each shaping subimage, linear character, central feature with corner characteristics is compared by corner characteristics respectively with reference edge feature, base linearity feature, reference center's feature and benchmark, when four comparative results are all coupling, corresponding shaping subimage is confirmed as pedestrian's subimage, calculates the number of pedestrian's subimage and exports as pedestrian's quantity；Distribution box communication interface is connected with AVR32 chip, receives pedestrian's index and traffic intersection address, for determining passenger flow index based on pedestrian's quantity, and is sent passenger flow index and traffic intersection address by wireless communication link；Bus dispatching platform, it is arranged on far-end, including bus dispatching communication interface and bus scheduling controller, bus dispatching communication interface for receiving passenger flow index and traffic intersection address by wireless communication link, bus scheduling controller is connected with bus dispatching communication interface, for determining the density of dispatching a car of bus circuit near traffic intersection address based on passenger flow index, and based on traffic intersection address, the density of dispatching a car determined is sent to the bus fleet management platform of bus circuit ownership near traffic intersection address by bus dispatching communication interface；Wherein, pedestrian's quantity is more many, and the passenger flow index of traffic intersection address is more big, and the density of dispatching a car of bus circuit is more frequent.
More specifically, described based in the bus information acquisition system of distribution box: traffic intersection address is pre-stored in FLASH memory.
More specifically, described based in the bus information acquisition system of distribution box: distribution box communication interface is connected to obtain traffic intersection address with FLASH memory.
More specifically, described based in the bus information acquisition system of distribution box: wireless communication link is FDD bidirectional communication link.
More specifically, described based in the bus information acquisition system of distribution box: bus dispatching platform is arranged on bus management control center position, city.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the bus information acquisition system based on distribution box illustrated according to an embodiment of the present invention.
Accompanying drawing labelling: 1 distribution box shell；2 intensity of illumination detectors；3 high-definition cameras；4 distribution box communication interfaces；5AVR32 chip
Detailed description of the invention
Below with reference to accompanying drawings the embodiment based on the bus information acquisition system of distribution box of the present invention is described in detail.
Distribution box of the prior art application is excessively single, the development trend of intelligent city cannot be adapted to, actually, the expanded function of traffic intersection place distribution box has greatly can the phase, such as can as the data acquisition platform of traffic intersection, for gathering pedestrian's quantity around, determine the passenger flow index of traffic intersection based on pedestrian's quantity, thus the selection for the departure frequency of bus fleet around provides convenient.
In prior art when lacking the navigation of bus passenger flow index, likely result in situations below to occur: near (1), flow of the people is considerably less, but the bus fleet management platform of bus circuit ownership does not know about this information near traffic intersection address, continue departure frequency frequently, cause that too much bus is unloaded, waste substantial amounts of public transport resources；(2) near, flow of the people is very many, but near traffic intersection address, the bus fleet management platform of bus circuit ownership does not know about concrete condition, it does not have increase the departure frequency of bus, causes that pedestrian goes on a journey difficulty.
In order to overcome above-mentioned deficiency, the present invention has built a kind of bus information acquisition system based on distribution box, artificial abortion's quantity of surrounding can be identified in time, so that it is determined that the passenger flow index of respective stretch, and in time passenger flow index is mail to neighbouring bus dispatching platform, to control the bus fleet management platform adaptive adjustment bus departure frequency of bus circuit ownership near traffic intersection address.
Fig. 1 is the block diagram of the bus information acquisition system based on distribution box illustrated according to an embodiment of the present invention, described system includes distribution box shell, intensity of illumination detector, high-definition camera, distribution box communication interface and AVR32 chip, intensity of illumination detector, high-definition camera, distribution box communication interface and AVR32 chip are all disposed within distribution box shell, intensity of illumination detector, high-definition camera and AVR32 chip are for determining pedestrian's quantity at traffic intersection place, distribution box communication interface for determining the passenger flow index concurrently sending traffic intersection place based on pedestrian's quantity.
Then, continue the concrete structure based on the bus information acquisition system of distribution box of the present invention is further detailed.
Described system includes: distribution box main body, selects handle including connecting terminal block, remote manual control, jumps and close position indicator, divide-shut brake button, analog input interface, switch value input interface, mains-supplied interface, stand-by power supply, distribution box communication interface, distribution box shell and AVR32 chip.
AVR32 chip selects handle, jumping conjunction position indicator, divide-shut brake button, analog input interface, switch value input interface, mains-supplied interface, stand-by power supply and distribution box communication interface to be connected respectively with connecting terminal block, remote manual control；Remote manual control selects handle for realizing the switching of manual operation on the spot and remote manipulation on the spot；Analog input interface includes signal conditioning circuit, genlock circuit and analog to digital conversion circuit.
Stand-by power supply is ultracapacitor, and its operating temperature is 40 degrees below zero between 70 degree above freezing, and efficiency for charge-discharge is between 90% to 95%；Distribution box shell adopts corrosion resistant stainless steel material.
Described system includes: intensity of illumination detector, is arranged on distribution box shell, for detecting the real-time lighting intensity of traffic intersection position, determines and export the intensity of illumination grade of correspondence according to real-time lighting intensity.
Described system includes: high-definition camera, is arranged on distribution box shell, and for traffic intersection is shot, to obtain high definition crossing image, the resolution of high definition crossing image is 1920 × 1080.
Described system includes: FLASH memory, it is arranged in distribution box shell, it is connected with connecting terminal block, for prestoring multiple benchmark intensity of illumination crossings image, the corresponding intensity of illumination grade of each benchmark intensity of illumination crossing image, each benchmark intensity of illumination crossing image is that traffic intersection is carried out shooting the image obtained in advance by high-definition camera under without any pedestrian's state under corresponding intensity of illumination grade, FLASH memory is additionally operable to prestore binary-state threshold, reference edge feature, base linearity feature, reference center's feature and benchmark are to corner characteristics, reference edge feature, base linearity feature, reference center's feature and benchmark diagonal angle are characterized as and extract acquisition after benchmark pedestrian's image carries out Haar wavelet transformation.
Described system includes: Foreground selection equipment, being connected respectively with connecting terminal block, intensity of illumination detector and FLASH memory, the intensity of illumination grade based on the output of current time intensity of illumination detector is found the benchmark intensity of illumination crossing image of correspondence in FLASH memory and exports as target background image.
nullDescribed system includes: live image splitting equipment，With connecting terminal block、High-definition camera、FLASH memory and Foreground selection equipment connect respectively，High definition crossing image and the high definition crossing image of current time upper one second of current time is received by high-definition camera，Respectively as the first high definition crossing image and the second high definition crossing image，The gray value of each pixel of the first high definition crossing image is deducted the gray value of the pixel of correspondence position in the second high definition crossing image and takes absolute value to obtain image difference absolute value，When image difference absolute value is be more than or equal to binary-state threshold，The respective pixel of the first high definition crossing image is confirmed as active pixel，Otherwise，The respective pixel of the first high definition crossing image is confirmed as static pixel，The image of all active pixel composition in first high definition crossing image is exported as live image，Live image is made up of one or more zones of action.
Described system includes: morphological image processes equipment, it is connected with connecting terminal block, live image splitting equipment, for receiving live image, and each zone of action is carried out denoising to obtain denoising subimage, fill up denoising subimage interior void and connect in denoising subimage breakpoint to obtain shaping subimage, export one or more shaping subimage.
Described system includes: Wavelet transformation device, process equipment with connecting terminal block, morphological image to be connected, each shaping subimage is performed Haar wavelet transformation, to extract the edge feature of each shaping subimage, linear character, central feature and to corner characteristics.
AVR32 chip is connected respectively with connecting terminal block, Wavelet transformation device and FLASH memory, by the edge feature of each shaping subimage, linear character, central feature with corner characteristics is compared by corner characteristics respectively with reference edge feature, base linearity feature, reference center's feature and benchmark, when four comparative results are all coupling, corresponding shaping subimage is confirmed as pedestrian's subimage, calculates the number of pedestrian's subimage and exports as pedestrian's quantity.
Distribution box communication interface is connected with AVR32 chip, receives pedestrian's index and traffic intersection address, for determining passenger flow index based on pedestrian's quantity, and is sent passenger flow index and traffic intersection address by wireless communication link.
Described system includes: bus dispatching platform, it is arranged on far-end, including bus dispatching communication interface and bus scheduling controller, bus dispatching communication interface for receiving passenger flow index and traffic intersection address by wireless communication link, bus scheduling controller is connected with bus dispatching communication interface, for determining the density of dispatching a car of bus circuit near traffic intersection address based on passenger flow index, and based on traffic intersection address, the density of dispatching a car determined is sent to the bus fleet management platform of bus circuit ownership near traffic intersection address by bus dispatching communication interface.
Wherein, pedestrian's quantity is more many, and the passenger flow index of traffic intersection address is more big, and the density of dispatching a car of bus circuit is more frequent.
Alternatively, in the system: traffic intersection address is pre-stored in FLASH memory；Distribution box communication interface is connected with FLASH memory to obtain traffic intersection address；Wireless communication link is FDD bidirectional communication link；And bus dispatching platform may be disposed at bus management control center position, city.
It addition, small echo (Wavelet) this term, as the term suggests, " small echo " is exactly little waveform.So-called " little " refers to that he has Decay Rate；It is referred to as " ripple " and then refers to its undulatory property, the concussion form of its amplitude alternate positive and negative.Compared with converting with Fourier, wavelet transformation is the localization analysis of time (space) frequency, signal (function) is progressively carried out multi-scale refinement by flexible shift operations by him, it is finally reached high frequency treatment time subdivision, the frequency segmentation of low frequency place, can adapt to the requirement that time frequency signal is analyzed, automatically thus any details of signal can be focused on, solve the difficult problem of Fourier conversion, become the important breakthrough in scientific method since the Fourier that continues converts.Someone calls " school microscop " wavelet transformation.
The theoretical research that the application of wavelet analysis is with wavelet analysis is bound tightly together ground.He achieves the achievement attracted people's attention at scientific and technological information industrial field.Electronic information technology is a field important in six big new and high technologies, and his importance is image and signal processing.Now, signal processing has become as the pith of contemporary science and technology work, and the purpose of signal processing be exactly: analyze accurately, diagnosis, compression coding and quantization, quickly transmission or storage, accurately reconstruct (or recovery).From mathematically angle, signal and image procossing can be unified to regard signal processing (image can be regarded as 2D signal) as, in many application of the many analyses in wavelet analysis ground, can be attributed to signal processing problems.Being stablize constant signal in time for its character, the ideal tools of process remains Fourier analysis.But most signals in actual applications are non-stable, and the instrument being particularly well-suited to astable signal is exactly wavelet analysis.
Adopt the bus information acquisition system based on distribution box of the present invention, for the prior art unmanageable technical problem of bus departure frequency, first, transform existing traffic intersection distribution box, increase image recognition apparatus and communication equipment to realize neighbouring pedestrian's number statistics of variables and transmission, increase bus dispatching platform to determine passenger flow index based on the pedestrian's quantity received, and passenger flow index is wirelessly sent to neighbouring bus fleet, to realize the Self Adaptive Control of the departure frequency based on real-time pedestrian's quantity.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described embodiment is not limited to the present invention.For any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above and technical solution of the present invention is made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the scope of technical solution of the present invention protection.
Claims (2)
1. the bus information acquisition system based on distribution box, described system includes distribution box shell, intensity of illumination detector, high-definition camera, distribution box communication interface and AVR32 chip, intensity of illumination detector, high-definition camera, distribution box communication interface and AVR32 chip are all disposed within distribution box shell, intensity of illumination detector, high-definition camera and AVR32 chip are for determining pedestrian's quantity at traffic intersection place, and distribution box communication interface for determining the passenger flow index concurrently sending traffic intersection place based on pedestrian's quantity.
2. the bus information acquisition system based on distribution box as claimed in claim 1, it is characterised in that described system includes:
Distribution box main body, selecting handle including connecting terminal block, remote manual control, jump and close position indicator, divide-shut brake button, analog input interface, switch value input interface, mains-supplied interface, stand-by power supply, distribution box communication interface, distribution box shell and AVR32 chip, AVR32 chip closes position indicator, divide-shut brake button, analog input interface, switch value input interface, mains-supplied interface, stand-by power supply and distribution box communication interface be connected respectively with connecting terminal block, remote manual control selection handle, jumping；
Remote manual control selects handle for realizing the switching of manual operation on the spot and remote manipulation on the spot；
Analog input interface includes signal conditioning circuit, genlock circuit and analog to digital conversion circuit；
Stand-by power supply is ultracapacitor, and its operating temperature is 40 degrees below zero between 70 degree above freezing, and efficiency for charge-discharge is between 90% to 95%；
Distribution box shell adopts corrosion resistant stainless steel material；
Intensity of illumination detector, is arranged on distribution box shell, for detecting the real-time lighting intensity of traffic intersection position, determines and export the intensity of illumination grade of correspondence according to real-time lighting intensity；
High-definition camera, is arranged on distribution box shell, and for traffic intersection is shot, to obtain high definition crossing image, the resolution of high definition crossing image is 1920 × 1080；
FLASH memory, it is arranged in distribution box shell, it is connected with connecting terminal block, for prestoring multiple benchmark intensity of illumination crossings image, the corresponding intensity of illumination grade of each benchmark intensity of illumination crossing image, each benchmark intensity of illumination crossing image is that traffic intersection is carried out shooting the image obtained in advance by high-definition camera under without any pedestrian's state under corresponding intensity of illumination grade, FLASH memory is additionally operable to prestore binary-state threshold, reference edge feature, base linearity feature, reference center's feature and benchmark are to corner characteristics, reference edge feature, base linearity feature, reference center's feature and benchmark diagonal angle are characterized as and extract acquisition after benchmark pedestrian's image carries out Haar wavelet transformation；
Foreground selection equipment, being connected respectively with connecting terminal block, intensity of illumination detector and FLASH memory, the intensity of illumination grade based on the output of current time intensity of illumination detector is found the benchmark intensity of illumination crossing image of correspondence in FLASH memory and exports as target background image；
nullLive image splitting equipment，With connecting terminal block、High-definition camera、FLASH memory and Foreground selection equipment connect respectively，High definition crossing image and the high definition crossing image of current time upper one second of current time is received by high-definition camera，Respectively as the first high definition crossing image and the second high definition crossing image，The gray value of each pixel of the first high definition crossing image is deducted the gray value of the pixel of correspondence position in the second high definition crossing image and takes absolute value to obtain image difference absolute value，When image difference absolute value is be more than or equal to binary-state threshold，The respective pixel of the first high definition crossing image is confirmed as active pixel，Otherwise，The respective pixel of the first high definition crossing image is confirmed as static pixel，The image of all active pixel composition in first high definition crossing image is exported as live image，Live image is made up of one or more zones of action；
Morphological image processes equipment, it is connected with connecting terminal block, live image splitting equipment, for receiving live image, and each zone of action is carried out denoising to obtain denoising subimage, fill up denoising subimage interior void and connect in denoising subimage breakpoint to obtain shaping subimage, export one or more shaping subimage；
Wavelet transformation device, processes equipment with connecting terminal block, morphological image and is connected, to each shaping subimage execution Haar wavelet transformation, to extract the edge feature of each shaping subimage, linear character, central feature and to corner characteristics；
AVR32 chip is connected respectively with connecting terminal block, Wavelet transformation device and FLASH memory, by the edge feature of each shaping subimage, linear character, central feature with corner characteristics is compared by corner characteristics respectively with reference edge feature, base linearity feature, reference center's feature and benchmark, when four comparative results are all coupling, corresponding shaping subimage is confirmed as pedestrian's subimage, calculates the number of pedestrian's subimage and exports as pedestrian's quantity；
Distribution box communication interface is connected with AVR32 chip, receives pedestrian's index and traffic intersection address, for determining passenger flow index based on pedestrian's quantity, and is sent passenger flow index and traffic intersection address by wireless communication link；
Bus dispatching platform, it is arranged on far-end, including bus dispatching communication interface and bus scheduling controller, bus dispatching communication interface for receiving passenger flow index and traffic intersection address by wireless communication link, bus scheduling controller is connected with bus dispatching communication interface, for determining the density of dispatching a car of bus circuit near traffic intersection address based on passenger flow index, and based on traffic intersection address, the density of dispatching a car determined is sent to the bus fleet management platform of bus circuit ownership near traffic intersection address by bus dispatching communication interface；
Wherein, pedestrian's quantity is more many, and the passenger flow index of traffic intersection address is more big, and the density of dispatching a car of bus circuit is more frequent；
Wireless communication link is FDD bidirectional communication link；
Bus dispatching platform is arranged on bus management control center position, city.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610296440.5A CN105788267A (en) | 2016-03-27 | 2016-03-27 | Bus information acquisition system based on distribution box |
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| CN201610296440.5A CN105788267A (en) | 2016-03-27 | 2016-03-27 | Bus information acquisition system based on distribution box |
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| CN201610179015.8A Division CN105654724A (en) | 2016-03-27 | 2016-03-27 | Bus information collecting system based on distribution box |
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Application publication date: 20160720 |
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