CN111391693B

CN111391693B - Management control system based on electric automobile parking charging and control method thereof

Info

Publication number: CN111391693B
Application number: CN202010095956.XA
Authority: CN
Inventors: 胡振斌; 徐方林; 陶远鹏; 胡丹; 许劲松; 苏怡; 程周育; 窦国贤; 宋晓波; 储世华
Original assignee: Anhui Yuqiu Fire Technology Co ltd; Anhui Jiyuan Software Co Ltd; State Grid Anhui Electric Vehicle Service Co Ltd
Current assignee: Anhui Yuqiu Fire Technology Co ltd; Anhui Jiyuan Software Co Ltd; State Grid Anhui Electric Vehicle Service Co Ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2021-11-05
Anticipated expiration: 2040-02-17
Also published as: CN111391693A

Abstract

The invention discloses a management control system based on electric automobile parking charging and a control method thereof. The system comprises a vehicle type identification driving-away device and an intelligent vehicle scheduling device. The vehicle type identification driving device comprises a first image acquisition module, a bottom line covering judgment module, a position contour acquisition module, a second image acquisition module, an extraction module, an identification module, a vehicle type judgment module, a driving module and a charging module. The intelligent vehicle scheduling device comprises an intelligent guide screen, a first charging display screen, a second charging display screen and a management controller. The method realizes the type identification of the electric automobile by utilizing the heating characteristics, prevents the non-electric automobile from occupying the parking space, and ensures the charging requirement of the electric automobile, thereby improving the utilization rate of the charging equipment and avoiding the resource waste. The invention also improves the operation and maintenance efficiency and timeliness, correspondingly improves the vehicle moving efficiency, improves the overall charging efficiency of the parking lot, and greatly improves the overall operation efficiency of the large-scale parking charging station of the electric automobile.

Description

Management control system based on electric automobile parking charging and control method thereof

Technical Field

The invention relates to a management control system in the technical field of electric automobile charging, in particular to a management control system based on electric automobile parking charging and a management control method based on electric automobile parking charging of the system.

Background

The large-scale parking charging station for the electric automobile is used for providing charging equipment for the electric automobile, such as a large number of parking spaces and charging piles, and the specific form and the variety of the charging equipment are various. One is a special charging station, which occupies a large amount of space and needs a special power grid, so that the investment is huge, the cost is difficult to recover, the commercial promotion is difficult, and the premise of popularization of the electric vehicle is to have a charging station network. The second direct current charging station (quick charging) is a box type electric vehicle quick charging station adopting an energy storage device. The third type of AC charging station (slow charging) is a coin-operated wall-mounted electric bicycle charging station.

Along with the continuous increase of the holding capacity of electric automobiles, the charging requirements of the electric automobiles are increased day by day, and the centralized charging of a large number of buses brings great difficulty to charging guidance and scheduling. At present, the following problems and requirements exist in a large-scale parking charging station for electric vehicles:

(1) when the electric automobile parks and charges, the bus driver needs to go to the operation and maintenance office and handle registration signing procedures, and operation and maintenance staff can find the vehicle of place according to the paper registration book and carry out the operation of charging, and this process can have the mistake of artificial registration, causes the trouble that operation and maintenance personnel looked for the car, and the station is great, and the bus driver charges to register and need to go far away.

(2) No information prompt when the vehicle is full or needs to move in the station

When the charging vehicle is fully charged, no information prompt is provided in the station, so that the vehicle which just enters the station cannot quickly and accurately find the parking place to be charged; at night, the charging peak is when the charging vehicle is fully charged and needs to move the vehicle, the operation and maintenance personnel get on the vehicle and turn on the vehicle lamp to prompt the driver of the vehicle to move the vehicle, and the automatic reminding is lacked.

Moreover, the parking spaces in the existing large-scale parking charging stations for electric vehicles are generally only provided for the electric vehicles, and the existing parking spaces are often occupied by non-electric vehicles, such as fuel vehicles and other non-motor vehicles, so that a large amount of charging piles are not used, resource waste is generated, and meanwhile, part of electric vehicles cannot be charged.

Disclosure of Invention

The invention provides a management control system and a management control method based on electric automobile parking charging, aiming at solving the technical problems that the operation and maintenance are complex, the vehicle moving efficiency is low, the parking space is occupied by a non-electric automobile, the resource waste is caused, and meanwhile, part of electric automobiles cannot be charged in the conventional large electric automobile parking charging station.

The invention is realized by adopting the following technical scheme: a management control system based on electric vehicle parking charging is applied to a large electric vehicle parking charging station; the large-scale parking charging station for the electric automobile comprises a parking lot, at least one entrance barrier gate and a plurality of charging piles respectively corresponding to a plurality of parking spaces; the parking lot comprises an operation and maintenance platform, a rest room and a plurality of parking spaces corresponding to the plurality of electric automobiles respectively; the operation and maintenance platform is used for operating the fully charged electric automobile, the rest room is used for resting a driver of the electric automobile, and each parking space is used for parking the corresponding electric automobile; each entrance barrier corresponds to at least one entrance and exit of the parking lot; each entrance barrier gate is arranged at a corresponding entrance; each charging pile is used for charging the electric automobile parked on the corresponding parking space; the management control system includes:

the vehicle type identification and driving device comprises a first image acquisition module, a bottom line coverage judgment module, a position profile acquisition module, a second image acquisition module, an extraction module, an identification module, a vehicle type judgment module, a driving module and a charging module; the image acquisition module I is used for acquiring bottom line images of all parking spaces in real time; the bottom line covering judging module is used for judging whether the parking space bottom line in the bottom line image is covered by the parked vehicle or not; the position contour acquisition module is used for acquiring vehicle position information and a contour image of the parking vehicle when the parking space bottom line is covered by the parking vehicle; the second image acquisition module is used for acquiring an infrared image in the outline range at the vehicle position according to the vehicle position and the outline image; the extraction module is used for extracting a heating position in the infrared image and heating characteristics of the heating position; the identification module is used for identifying the parked vehicle in a preset vehicle identification system according to the heating position and the heating characteristic so as to obtain the vehicle type of the parked vehicle; the heating position and the heating characteristic correspond to a unique vehicle type in the preset vehicle identification system; the vehicle type judging module is used for judging whether the vehicle type is an electric vehicle or not; the driving-away module is used for driving away the parked vehicle when the vehicle type is a non-electric vehicle; the charging module is used for charging the parked vehicle when the vehicle type is an electric vehicle; and

the intelligent vehicle dispatching device comprises at least one intelligent guide screen, a first charging display screen, a second charging display screen and a management controller; the intelligent guide screens correspond to the entrance barriers, and each intelligent guide screen is installed at the corresponding entrance barrier and used for guiding the electric automobile entering from the corresponding entrance barrier; the first charging display screen is arranged in the parking lot and used for displaying vehicle information and a charging state of the electric automobile which is being charged to the operation and maintenance platform; the second charging display screen is arranged in the parking lot and is used for displaying the vehicle information and the charging state of the electric automobile which is being charged to the rest room; the management controller is used for judging whether the electric automobile is parked on each parking space or not and generating corresponding parking space use state data; when the electric automobile is not parked on the parking space, judging that the parking space is an idle parking space, otherwise, judging that the parking space is occupied, and acquiring the vehicle information of the electric automobile parked on the parking space; the management controller is further used for acquiring equipment information, a charging state and a charging amount of a charging pile corresponding to the occupied parking space; the management controller is further used for displaying the information of the free parking spaces and the equipment information of the charging piles corresponding to the free parking spaces on the intelligent guide screen so as to provide at least one free parking space for the electric automobile entering from the entrance barrier gate; the management controller is further used for synchronously displaying vehicle information of the electric automobile parked on the occupied parking space and equipment information, a charging state and a charging amount of a charging pile corresponding to the occupied parking space on the first charging display screen and the second charging display screen, so that operation and maintenance personnel of the operation and maintenance platform can pull out the electric automobile when the electric automobile is fully charged, and a driver in the rest room can move and schedule the electric automobile.

According to the invention, the vehicle type identification driving-away device is used for firstly acquiring the bottom line image of the parking space, then judging whether the bottom line of the parking space is covered, if so, acquiring the position information and the outline image of the parking vehicle, then extracting the heating position and the heating characteristic in the infrared image, then identifying the parking vehicle in the preset vehicle identification system to obtain the vehicle type, and finally judging whether the vehicle type is an electric vehicle, if so, charging the parking vehicle, otherwise, directly driving away the parking vehicle.

The invention firstly judges the parking condition on each parking space through the intelligent vehicle dispatching device to generate corresponding parking space use state data, divides the parking space into an idle parking space and an occupied parking space, then acquires the relevant information of a charging pile on the occupied parking space, displays the idle parking space on the intelligent guide screen to guide the vehicle to be parked and charged, and finally displays the vehicle information, the charging pile equipment information, the charging state and the charging amount on the occupied parking space on the first charging display screen and the second charging display screen, so that the operation and maintenance platform can timely operate the fully charged electric vehicle, and a driver in a rest room can timely know that the electric quantity of the electric vehicle is fully charged, thereby carrying out vehicle moving treatment, changing the occupied parking space into the idle parking space, providing a parking space for the electric vehicle to be charged next, solving the problem that the operation and maintenance are complicated during the parking and charging of the existing electric vehicle, move the technical problem of car inefficiency, it is convenient to have obtained the electric automobile car and charge, improves fortune dimension efficiency and promptness, makes things convenient for fortune dimension platform to carry out fortune dimension, and the full car efficiency of moving of electricity also obtains corresponding improvement moreover, vacates more idle parking stalls and supplies other vehicles to charge to improve the whole charging efficiency's in parking area technical effect.

As a further improvement of the above scheme, the first image acquisition module comprises a visible light camera, and the visible light camera is used for shooting a parking space bottom line of the parking space to acquire the bottom line image; the second image acquisition module comprises an infrared camera, and the infrared camera is used for performing infrared shooting on the area in the outline range at the position of the vehicle so as to acquire the infrared image.

As a further improvement of the above solution, two different vehicle identification modes are preset in the preset vehicle identification system; one of the vehicle identification modes is used to identify a parked vehicle whose heat generation location is the entire region of the parked vehicle as the electric vehicle, and the other vehicle identification mode is used to identify a parked vehicle whose heat generation location is the engine compartment region of the parked vehicle as the non-electric vehicle.

As a further improvement of the above scheme, the identification module includes a feature acquisition unit, a gray difference calculation unit, and a vehicle type determination unit; the characteristic acquisition unit is used for acquiring a background gray value and a brightest gray value in the infrared image and taking the background gray value and the brightest gray value as the heating characteristic; the gray difference calculating unit is used for calculating the gray difference value between the brightest gray value and the background gray value; the vehicle type judging unit is used for judging whether the gray difference value is larger than a preset gray value I, if so, the vehicle type is judged to be a non-electric vehicle, and otherwise, the vehicle type is judged to be an electric vehicle.

As a further improvement of the above scheme, the vehicle type identification driving-away device further comprises a noise processing module; the noise processing module is used for carrying out noise processing on the infrared image before the heating position and the heating feature are extracted by the extraction module; the noise processing module comprises a noise area acquisition unit, a noise judgment unit and a noise elimination unit; the noise area acquisition unit is used for acquiring a driving position area and a passenger position area of the parked vehicle in the infrared image; the noise judgment unit is used for judging whether the gray value of the driving position area or the passenger position area reaches a preset human body infrared gray value or not; the noise removing unit is used for removing the part of the gray value larger than the preset human body infrared gray value from the infrared image when the gray value reaches the preset human body infrared gray value.

As a further improvement of the above scheme, the vehicle type identification driving-away device further comprises a mobile noise processing module; the mobile noise processing module is used for carrying out mobile noise processing on the infrared image before the heating position and the heating feature are extracted by the extraction module; the mobile noise processing module comprises a comparison image acquisition unit, a comparison screening unit and a mobile noise eliminating unit; the contrast image acquisition unit is used for acquiring a plurality of infrared images in different time periods; the comparison screening unit is used for comparing the plurality of infrared images to screen out at least one moving target of which the gray value change value is smaller than a preset gray threshold value and the position change amount is larger than a preset position change value; the mobile noise removing unit is used for removing the mobile target from the infrared image.

As a further improvement of the above scheme, whether the electric vehicle is parked on the parking space is detected through at least one of geomagnetic induction, a parking space lock and a parking space state recognition camera, and the vehicle information is acquired; the information displayed on the first charging display screen and the second charging display screen is sequentially displayed according to a priority ranking sequence of charging completion amounts of the charging piles from large to small, and the current screen is used for displaying vehicle information of the electric vehicle which is fully charged or the charging amount of the electric vehicle reaches a preset charging amount.

As a further improvement of the above scheme, the management controller is further configured to obtain position information of all the vacant parking spaces, simulate a travel path from the entry barrier to each vacant parking space, calculate a length of each travel path, sort the path lengths in a descending order, and sequentially display the corresponding vacant parking spaces on the intelligent guidance screen according to the sort of the path lengths.

As a further improvement of the above aspect, the management controller includes a vehicle information acquisition module; the vehicle information acquisition module comprises an image acquisition unit, a contour extraction unit, a license plate recognition unit, an ultrasonic unit, a height calculation unit and a height change judgment unit; the image acquisition unit is used for acquiring images of the front side and the rear side of the electric automobile parked on the occupied parking space to obtain at least two acquired images; the contour extraction unit is used for extracting the contour of the collected image and extracting a license plate image matched with a preset rectangular frame; the license plate recognition unit is used for recognizing the character information in the license plate images, and performing coincidence comparison on the character information of the license plate images of the two collected images to obtain a string of repeated characters as the license plate information of the electric vehicle; the ultrasonic unit is used for transmitting ultrasonic waves to the electric automobile positioned on the occupied parking space and synchronously timing; the height calculating unit is used for calculating the ground clearance of the vehicle from the ground of the corresponding parking space according to the timing time; the formula for calculating the height above the ground is as follows:

wherein, H is the height from the ground, C is the propagation speed of the ultrasonic wave, T is the timing time, and D is the distance between the transmitting end and the receiving end of the ultrasonic equipment; the height change judging unit is used for judging whether the change value of the ground clearance is larger than a preset height difference or not, and if so, judging that a driver on the electric automobile gets off the automobile and the automobile is used as vehicle-mounted information of the vehicle information.

The invention also provides a management control method based on electric vehicle parking charging, which is applied to any one of the management control systems based on electric vehicle parking charging, and comprises the following steps:

acquiring bottom line images of each parking space in real time;

judging whether the parking space bottom line in the bottom line image is covered by the parked vehicle or not;

when the parking space bottom line is covered by the parked vehicle, collecting vehicle position information and a contour image of the parked vehicle;

acquiring an infrared image within a contour range at the vehicle position according to the vehicle position and the contour image;

extracting a heating position in the infrared image and heating characteristics of the heating position;

according to the heating position and the heating characteristic, identifying the parked vehicle in a preset vehicle identification system to obtain the vehicle type of the parked vehicle; the heating position and the heating characteristic correspond to a unique vehicle type in the preset vehicle identification system;

judging whether the vehicle type is an electric vehicle or not;

when the vehicle type is a non-electric vehicle, driving away the parked vehicle;

when the vehicle type is an electric vehicle, charging the parked vehicle;

judging whether the electric automobile is parked on each parking space or not, and generating corresponding parking space use state data; when the electric automobile is not parked on the parking space, judging that the parking space is an idle parking space, otherwise, judging that the parking space is occupied, and acquiring the vehicle information of the electric automobile parked on the parking space;

acquiring equipment information, a charging state and a charging amount of a charging pile corresponding to the occupied parking space;

displaying the information of the vacant parking spaces and the equipment information of the charging piles corresponding to the vacant parking spaces on the intelligent guide screen so as to provide at least one vacant parking space for the electric automobile entering from the entrance barrier;

the method comprises the steps that vehicle information of an electric automobile parked on an occupied parking space and equipment information, a charging state and a charging amount of a charging pile corresponding to the occupied parking space are synchronously displayed on a first charging display screen and a second charging display screen, so that operation and maintenance personnel of an operation and maintenance platform can pull out a gun of the electric automobile when the electric automobile is fully charged, and a driver in a rest room can move and schedule the electric automobile.

Compared with the existing large-scale electric vehicle parking charging station, the management control system based on electric vehicle parking charging and the control method thereof have the following beneficial effects:

1. this management control system based on electric automobile parks and charges, its motorcycle type discernment drives away the device and gathers the bottom line image on parking stall earlier, judge again that the parking stall bottom line is covered, then gather the positional information and the profile image of parking vehicle, then draw the position of generating heat and the characteristic of generating heat in the infrared image, then discern the vehicle of parking in predetermineeing vehicle identification system again, obtain the vehicle type, judge at last whether the vehicle type is electric automobile, if so charge the vehicle of parking, otherwise directly drive away the vehicle of parking. Because electric automobile and non-electric automobile have the difference in the aspect of the power generates heat, and this motorcycle type discernment is driven away the device and is then utilized the characteristic of generating heat to realize electric automobile's type discernment, prevents that non-electric automobile from occupying the parking stall, ensures electric automobile's the demand of charging to improve battery charging outfit's utilization ratio, avoid the wasting of resources.

2. The management control system based on electric automobile parking charging comprises an intelligent vehicle scheduling device, a parking space management device, a charging platform and a control system, wherein the intelligent vehicle scheduling device firstly judges the parking condition on each parking space, generates corresponding parking space use state data, divides the parking space into an idle parking space and an occupied parking space, then acquires the related information of a charging pile on the occupied parking space, displays the idle parking space on an intelligent guide screen to guide the vehicle to be parked to park and charge, and finally displays the vehicle information, the charging pile equipment information, the charging state and the charging quantity on the occupied parking space on a first charging display screen and a second charging display screen, so that the operation and maintenance platform can master the charging condition on each occupied parking space through the first charging display screen to timely operate a fully charged electric automobile, and simultaneously a driver in a rest room can timely know that the electric quantity of the electric automobile is full through the second charging display screen, thereby move the car and handle, make and occupy the parking stall and become idle parking stall, the electric automobile who needs to charge provides the parking stall for next, make other electric automobile cars that wait to charge convenient, improve fortune dimension efficiency and timeliness, make things convenient for fortune dimension platform to carry out fortune dimension, full car moving efficiency also obtains corresponding improvement in addition, and make vacate more idle parking stalls and supply other vehicles to charge, thereby improve the whole charging efficiency in parking area, make the whole operating efficiency of the large-scale parking charging station of electric automobile improve by a wide margin.

3. According to the management control system based on electric automobile parking charging, when a vehicle type identification driving-away device identifies a vehicle type, a background gray value and a brightest gray value in an infrared image are firstly obtained, the brightest gray value can reflect an area with the largest vehicle heating value, the background gray value reflects other non-heating areas of the vehicle, then a gray difference value is calculated, finally whether the gray difference value is larger than a preset gray value one or not is judged, if yes, the vehicle adopts a fuel engine with larger heating value, and is a non-electric automobile, and if not, the vehicle is an electric automobile. The method can also compare the gray difference value with a preset gray value two when identifying the type of the vehicle, and can judge the vehicle as an electric vehicle only when the gray difference value is smaller than the preset gray value two, otherwise, the vehicle is a non-electric vehicle. The method can judge the vehicle type by utilizing the heating characteristics of the vehicle so as to be convenient for driving away the non-motor vehicle subsequently, and the identification rate of the vehicle type can be obviously improved because the fuel engine and the electric engine have great difference in the aspect of heat generation.

4. According to the management control system based on electric automobile parking charging, the vehicle type identification driving device carries out noise processing on the infrared image before the heating characteristic is extracted, the driving position area and the passenger position area are obtained, whether the gray value of the driving position area and the passenger position area reaches the preset human body infrared gray value or not is judged, if yes, the driving position area is eliminated, factors influencing gray judgment can be eliminated, factors with large gray values in the vehicle do not exist correspondingly, the heating characteristic can be obtained to be closer to the actual heating characteristic of the vehicle, and the accuracy of data extraction is improved.

5. This management control system based on electric automobile parks and charges, its motorcycle type discernment is driven and is driven away the device and carry out the removal noise processing to infrared image before getting the characteristic that generates heat, through comparing the infrared image of different periods to select the moving target, reject this moving target at last, just so can avoid the great moving noise of heat such as human body, pet, thereby further improve the accuracy of the characteristic that generates heat of extraction.

6. The management control system based on electric automobile parking charging has the advantages that the management controller of the intelligent vehicle scheduling device acquires the position information of all the idle parking spaces, simulates a plurality of passing paths between the idle parking spaces and an entrance barrier, calculates the length of each passing path, sorts the passing paths according to the sequence from small to large, and selects the passing path with the minimum length as the action path of the electric automobile to be parked, so that the electric automobile can reach the idle parking spaces in the shortest time to be charged, the traveling time of the automobile is shortened, the energy is saved, and the traveling path is planned, so that for drivers who are not familiar with the environment in part of parking lots, the navigation service is provided for the drivers, the parking charging service level is improved, and the parking lots run more smoothly, and simultaneously, the labor intensity of a driver is reduced.

Drawings

Fig. 1 is a system framework diagram of a management control system based on electric vehicle parking charging according to embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of the detection of a first image capture module and a second image capture module of the management control system of FIG. 1;

FIG. 3 is a road map of ultrasonic propagation of a vehicle information acquisition module in the supervisory control system of FIG. 1;

FIG. 4 is a diagram of a computational model of the ultrasonic propagation of FIG. 3;

fig. 5 is a flowchart of a management control method based on electric vehicle parking charging according to embodiment 7 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

Referring to fig. 1, the present embodiment provides a management control system based on electric vehicle parking charging, which is applied to a large electric vehicle parking charging station. The large-scale parking charging station for the electric automobile comprises a parking lot, an entrance road gate and a plurality of charging piles, and the management control system comprises a vehicle type identification driving-away device and a charging and vehicle moving coordination device.

The parking area includes fortune dimension platform, rest room and a plurality of parking stall. The operation and maintenance platform is used for operating the fully charged electric automobile, for example, an operation and maintenance person of the operation and maintenance platform can pull out a gun from the fully charged electric automobile. The operation and maintenance platform is generally grasped by operation and maintenance personnel, and is used as a working place of the operation and maintenance personnel on one hand and a maintenance place of the whole parking lot on the other hand. The rest room is used for the driver of electric automobile to have a rest, and the rest room is generally with fortune dimension platform separation, and equipment such as stool, bed can be set up in its inside and supply the driver to have a rest. A plurality of parking stalls correspond with a plurality of electric automobile respectively, and every parking stall is used for supplying the electric automobile who corresponds to park. The parking stall designs according to the motorcycle type of electric automobile car, and its quantity then sets up according to the quantity of electric automobile car, generally is no less than the quantity of electric automobile car. These component parts of parking area all can be existing equipment, and it can supply electric automobile to park the charging, and in this embodiment, this parking area is the parking place of electric automobile car.

The entrance barrier gate number is at least one, and at least one entrance barrier gate corresponds to at least one exit and entrance of the parking lot. Each entrance barrier is installed at the corresponding entrance and exit. The entrance barrier is actually a door of a large-scale parking charging station for the electric vehicle, which can prevent some non-public vehicles from entering, and certainly in some embodiments, when the electric vehicle is a non-public vehicle, the entrance barrier is set for conveniently managing the vehicle.

Fill electric pile's quantity and be a plurality of, a plurality of electric piles correspond with a plurality of parking stalls respectively moreover. Every fills electric pile and is used for charging to the electric automobile who parks on corresponding parking stall. Fill electric pile and can adopt current electric automobile to fill electric pile, it can provide charging service for electric automobile. Fill electric pile and generally set up the front and back side at the parking stall, just can directly charge through cable and plug after electric automobile parks the completion like this. Fill electric pile and possess the electric quantity measurement function, it can be to electric automobile's real-time charge volume, charge completion volume and count.

In the embodiment, the types of parked vehicles are classified into electric vehicles and non-electric vehicles, and the non-electric vehicles are generally fuel vehicles, because most of the current motor vehicles mainly use the fuel vehicles, while the number of the electric vehicles is not large, and because the number of parking spaces is effective, the fuel vehicles occupy the parking spaces of the electric vehicles. Therefore, the vehicle type identification driving-away device is arranged in the embodiment, and comprises a first image acquisition module, a bottom line coverage judgment module, a position contour acquisition module, a second image acquisition module, an extraction module, an identification module, a vehicle type judgment module, a driving-away module and a charging module.

Referring to fig. 2, the first image capturing module is used for capturing a bottom line image of each parking space in real time. The visible light camera is used for shooting the parking space bottom line of the parking space so as to obtain a bottom line image. The visible light camera can be installed in the front side or the rear side of parking the vehicle through mounting structures such as mounting posts, bases and the like, certainly, on some special parking spaces, the visible light camera can also be arranged on the left side or the right side of the parking space, for example, the parking space is a lateral parking space, and then the visible light camera can be arranged in the lateral direction.

The bottom line covering judging module is used for judging whether the parking space bottom line in the bottom line image is covered by the parked vehicle. Because the parking stall bottom line is complete when the vehicle is not parked, and when the parked vehicle is parked on the parking stall, the parking stall bottom line can be covered by the parked vehicle, so that the parking stall bottom line can not be found in the bottom line image, and the parking stall can be judged to be occupied by the vehicle.

The position contour acquisition module is used for acquiring vehicle position information and contour images of the parked vehicles when the parking space bottom lines are covered by the parked vehicles. When a parked vehicle occupies a parking space, the geomagnetic sensor can be used for detecting vehicle information, the geomagnetic sensor utilizes the characteristic determined by the distribution of the earth magnetic field, the magnetic field distribution can be changed when the vehicle passes through, the basic principle that the resistance characteristic inside the sensor can be changed is used for measuring the magnetic field change, and the vehicle position information can be acquired at the moment. Compared with a common geomagnetic coil detector, the geomagnetic sensor has the advantages of small installation size, high sensitivity, small construction amount, long service life and small damage to the road surface. Generally speaking, the geomagnetic sensor itself may be equipped with a camera function, so as to directly acquire the profile image of the parked vehicle, and of course, other cameras may be used to acquire the profile image of the vehicle.

The second image acquisition module is used for acquiring infrared images within the outline range at the position of the vehicle according to the position of the vehicle and the outline images. In this embodiment, the second image capturing module includes an infrared camera, and the infrared camera is configured to perform infrared shooting on an area within a contour range at the vehicle position to obtain an infrared image. In the previous module, since the position and contour of the parked vehicle have been determined, the infrared camera takes infrared images of the area within the contour at the vehicle position to obtain infrared images. The infrared camera can adopt the existing infrared camera equipment, and can gather the infrared image in a certain range, utilize the different corresponding infrared image of formation of thermal radiation.

The extraction module is used for extracting the heating position in the infrared image and the heating characteristic of the heating position. When the parked vehicle is just parked on a parking space, the heating positions of the fuel vehicle are generally an engine compartment and a tail gas area of the vehicle, namely an engine hood part and a tail gas pipe at the front part of the vehicle body, the heat of the part is concentrated, and a strong contrast effect is formed by the heating states of the part and other parts of the vehicle body. The electric automobile is powered by electricity, the heating area of the electric automobile is generally the whole automobile body, and even if the heating value of part of the area is larger, the heating value is not larger than that of the fuel automobile.

The identification module is used for identifying the parked vehicle in a preset vehicle identification system according to the heating position and the heating characteristic so as to obtain the vehicle type of the parked vehicle. The heating position and the heating characteristic correspond to a unique vehicle type in a preset vehicle identification system. In the preset vehicle recognition system, two different vehicle recognition modes are preset. One of the vehicle identification modes is used to identify a parked vehicle whose heat generation place is the entire region of the parked vehicle as an electric vehicle, and the other vehicle identification mode is used to identify a parked vehicle whose heat generation place is the engine compartment region of the parked vehicle as a non-electric vehicle.

Generally, the heating positions of the fuel vehicle and the electric vehicle are different, and if the heating positions are the same, the heating characteristics are necessarily different. For the heating characteristic, the fuel vehicle adopts a fuel engine, so that the heating value is very large, and meanwhile, the heating area (shape) is relatively fixed. The area where the electric automobile generates heat is generally the storage battery and the engine, the heat productivity is obviously smaller than that of the fuel engine, and meanwhile, the heating area is different. Here, it can be verified that if the heat of the engine or the storage battery of the electric motor can reach the heat of the fuel engine, the fuel engine uses the fuel to compress air to do work, the temperature can reach the ignition point, if the temperature occurs in the electric automobile, the cable of the electric automobile is inevitably in fire, which is not normal, and therefore the local heat of the electric motor cannot reach the heat of the fuel automobile.

The vehicle type judging module is used for judging whether the vehicle type is an electric vehicle. The type of the vehicle can be determined by the former module through the heating position and the heating characteristic, so that whether the parked vehicle is an electric vehicle or not can be judged in the module, and corresponding treatment can be conveniently carried out subsequently.

The driving-away module is used for driving away the parked vehicle when the type of the vehicle is a non-electric vehicle. Because non-electric automobile occupies the parking stall and can lead to filling the charging resource of electric pile to be wasted, also make some electric automobile not have the parking stall to charge simultaneously, consequently need drive away non-electric automobile. When driving away, the parked vehicles can be driven away through the ground lock, the barrier gate and the sound and light alarm system, and alarm information is sent to the corresponding management platform. Of course, also can send out warning sound through the attention device of setting in charging the stake, remind the driver who parks the vehicle to move the vehicle away. Like this, on the one hand can guarantee that the resource of charging station is by make full use of, on the other hand makes things convenient for electric automobile to charge, but also can guide green vehicle's selection, and then can play the effect of environmental protection deeply.

The charging module is used for charging the parked vehicle when the vehicle type is an electric vehicle. This module can directly be predetermine in the electric pile that fills on parking stall, when judging that the vehicle type is electric automobile, fills the direct function of charging that realizes parking the vehicle of electric pile.

The intelligent vehicle scheduling device comprises an intelligent guide screen, a first charging display screen, a second charging display screen and a management controller. The number of the intelligent guide screens is at least one, and at least one intelligent guide screen corresponds to at least one entrance barrier. Each intelligent guide screen is installed at the corresponding entrance barrier and is used for guiding the electric automobile entering from the corresponding entrance barrier. The intelligent guidance screen is generally a large screen that can be erected on the side of the entrance barrier located in the parking lot and provides guidance service to the electric vehicle entering from the side of the entrance barrier. In some embodiments, when the electric vehicle is a non-bus vehicle, the intelligent guide screen may also provide advertising services to people in the electric vehicle, and push advertising information to customers.

The first charging display screen is arranged in the parking lot and used for displaying vehicle information and charging state of the electric vehicle being charged to the operation and maintenance platform. The first charging display screen can be directly installed in a position area where the operation and maintenance platform is located, and in some embodiments, the first charging display screen can be directly integrated with the operation and maintenance platform, that is, the first charging display screen is a display device of the operation and maintenance platform.

The second charging display screen is provided in the parking lot and is used for displaying vehicle information and a charging state of the electric vehicle being charged to the rest room. The second display screen that charges can directly set up in the rest room, and the driver just so can look over the electric automobile's that it needs to drive the situation of charging in the rest. When electric automobile was full of the electricity, the driver can in time look over the charging condition through the second display screen that charges, also can confirm the parking stall at electric automobile place simultaneously to the convenience is moved the car or is driven the processing to the electric automobile who charges the completion.

The management controller is used for judging whether the electric automobile is parked on each parking space or not and generating corresponding parking space use state data. When the electric automobile is not parked on the parking space, the parking space is judged to be an idle parking space, otherwise, the parking space is judged to be occupied, and the vehicle information of the electric automobile parked on the parking space is acquired. In this embodiment, whether park the electric automobile and obtain vehicle information on the parking stall through at least one kind among earth induction, parking stall lock, the parking stall state identification camera. For example, when detecting vehicle information using geomagnetic induction, a geomagnetic sensor may be used. The geomagnetic sensor can be used for detecting the existence of vehicles and identifying vehicle types, and measures the change of a magnetic field by using the characteristic determined by the distribution of the earth magnetic field and the basic principle that the distribution of the magnetic field is changed when the vehicles pass by so that the resistance characteristic in the sensor is changed. Compared with a common geomagnetic coil detector, the geomagnetic sensor has the advantages of small installation size, high sensitivity, small construction amount, long service life and small damage to the road surface.

In the present embodiment, the management controller includes a vehicle information acquisition module. The vehicle information acquisition module comprises an image acquisition unit, a contour extraction unit, a license plate recognition unit, an ultrasonic unit, a height calculation unit and a height change judgment unit. The image acquisition unit is used for carrying out image acquisition on the front side and the rear side of the electric automobile parked on the parking space to obtain at least two acquired images. The contour extraction unit is used for extracting the contour of the collected image and extracting the license plate image matched with a preset rectangular frame. The license plate recognition unit is used for recognizing the character information in the license plate images, and performing superposition comparison on the character information of the license plate images of the two collected images to obtain a string of repeated characters to be used as the license plate information of the electric vehicle. The ultrasonic unit is used for transmitting ultrasonic waves to the electric automobile located on the occupied parking space and synchronously timing. Referring to fig. 3 and 4, the height calculating unit is configured to calculate a ground clearance of the vehicle from the ground of the corresponding parking space according to the timing time. The formula for calculating the height above the ground is:

wherein, H is the height from the ground, C is the ultrasonic wave propagation speed, T is the timing time, and D is the distance between the transmitting end and the receiving end of the ultrasonic equipment. The height change judging unit is used for judging whether the change value of the ground clearance is larger than a preset height difference or not, and if so, judging that a driver on the electric automobile gets off the automobile and the automobile is used as vehicle-mounted information of the vehicle information.

The management controller is further used for acquiring the equipment information, the charging state and the charging amount of the charging pile corresponding to the occupied parking space. The relevant information of the charging pile can be acquired in a wireless transmission mode and a communication cable transmission mode, and the information can be collected into a data packet. The device information includes a number of the charging pile, the charging state is divided into a charging state and a non-charging state, the charging amount is a charging completion amount of the charging pile to the electric vehicle, for example, when the charging pile charges the electric vehicle by 70%, the charging completion amount of the electric vehicle is 70%.

The management controller is also used for displaying the information of the free parking spaces and the equipment information of the charging piles corresponding to the free parking spaces on the intelligent guide screen so as to provide at least one free parking space for the electric automobile entering from the entrance barrier gate. When these information display is on the intelligent guide screen to can guide the electric automobile who treats to charge and go to idle parking stall and park, and utilize idle electric pile of filling to charge, thereby be convenient for the driver to carry out the operation of charging, realize the accurate positioning of the demand of charging.

The management controller is further used for synchronously displaying vehicle information of the electric automobile parked on the occupied parking space and equipment information, a charging state and a charging amount of a charging pile corresponding to the occupied parking space on the first charging display screen and the second charging display screen, so that the operation and maintenance platform operates the electric automobile when the electric automobile is fully charged, and a driver in the rest room carries out vehicle moving scheduling. Like this, the fortune dimension platform just masters the charging condition on each occupation parking stall through the display screen that charges at first, in time operate full of electric automobile, the driver who is located the rest room simultaneously also can in time know its electric automobile's electric quantity through the second display screen that charges and have been full of, thereby move the car and handle, make occupation parking stall become idle parking stall, the electric automobile who charges for next needs provides the parking stall, make other electric automobile cars of waiting to charge convenient, improve fortune dimension efficiency and timeliness, make things convenient for the fortune dimension platform to carry out fortune dimension, and full of electricity moves car efficiency and also obtains corresponding improvement, and make vacate more idle parking stalls and supply other vehicles to charge, thereby improve the whole charging efficiency in parking area, make the whole operating efficiency of the large-scale parking charging station of electric automobile improve by a wide margin.

In this embodiment, the information displayed on the first charging display screen and the second charging display screen is sequentially displayed according to a priority ranking sequence of charging completion amounts of the charging piles from large to small, and the current screen is used for displaying vehicle information of the electric vehicle which is fully charged or the charging amount of which reaches a preset charging amount. This kind of show priority of this embodiment can guarantee that every electric automobile that treats to be full of can both be found at first, makes things convenient for relevant personnel to look over and handle on the one hand, and on the other hand also can improve the rate of utilization of filling electric pile.

To sum up, compare in current large-scale parking charging station of electric automobile, the management control system based on electric automobile parks and charges of this embodiment has following advantage:

Example 2

The embodiment provides a management control system based on electric automobile parking charging, which refines the identification module on the basis of the embodiment 1. The identification module comprises a characteristic acquisition unit, a gray difference calculation unit and a vehicle type judgment unit.

The characteristic acquisition unit is used for acquiring a background gray value and a brightest gray value in the infrared image and taking the background gray value and the brightest gray value as heating characteristics. The background gray value is a region with stable temperature in the parked vehicle, such as a vehicle frame, and the brightest gray value is a region with the largest heat generation amount of the vehicle, and is also a region with the strongest heat generation amount, such as a fuel cabin of a fuel vehicle.

The gray difference calculating unit is used for calculating the gray difference value between the brightest gray value and the background gray value. The grey scale difference value actually reflects the temperature difference in the parked vehicle, i.e., the temperature difference between the hottest zone and the average temperature. During calculation, the brightest gray value is generally the gray value of a dark color area in the infrared image, and the value with the largest gray value can be selected, while the background gray value is the gray value of a light color area, and the gray value with the largest area occupied by the same color can be selected.

The vehicle type judging unit is used for judging whether the gray difference value is larger than a preset gray value I, if so, the vehicle type is judged to be a non-electric vehicle, and if not, the vehicle type is judged to be an electric vehicle. And comparing the gray difference value with the preset gray value one, so that the type of the vehicle can be accurately judged according to the gray information. In fact, the principle used in the present unit is to identify the parked vehicle on the basis of the difference between the maximum temperature in the fuel vehicle and the maximum temperature in the electric vehicle. When the gray difference value is larger than the preset gray value, the temperature difference is very large, and the parked vehicle can be judged to be not the electric vehicle. For the determination of the preset gray value one, the heating conditions of various electric vehicles can be integrated for setting, and meanwhile, the electric vehicle with the largest heating value and the fuel vehicle with the smallest heating value are selected as two limit conditions in consideration of the heating condition of the fuel vehicle, so as to determine the specific numerical value of the preset gray value one. For example, the maximum temperature that the electric vehicle can generate is 75 degrees celsius, and the minimum temperature that the fuel vehicle can generate is 400 degrees celsius, then the temperature corresponding to the preset gray value one may be selected from the range of 75 degrees celsius to 400 degrees celsius, and an intermediate value is selected as far as possible. Therefore, the system in the embodiment can judge the vehicle type by utilizing the heating characteristics of the vehicle so as to facilitate the subsequent driving-away treatment of the non-motor vehicle, and the recognition rate of the vehicle type can be obviously improved because the fuel engine and the electric engine have great difference in the aspect of heat generation.

Example 3

The embodiment provides a management control system based on electric automobile parking charging, which performs noise processing on the basis of the embodiment 1. The vehicle type identification driving-away device further comprises a noise processing module. The noise processing module is used for carrying out noise processing on the infrared image before the heating position and the heating characteristic are extracted by the extracting module. The noise processing module comprises a noise area acquisition unit, a noise judgment unit and a noise elimination unit.

The noise region acquisition unit is used for acquiring a driving position region and a passenger position region of a parked vehicle in the infrared image. In general, the driving location area and the passenger location area in the parked vehicle are determined, and thus the areas in the infrared image can be directly selected at the time of acquisition. In both areas there are usually people located when the vehicle is just parked, and this step is to screen out the two people-occupied areas.

The noise judgment unit is used for judging whether the gray value of the driving position area or the passenger position area reaches a preset human body infrared gray value. The preset human body infrared gray value is consistent with the gray value corresponding to the human body temperature, a vehicle can be parked on a parking space in advance during specific setting, meanwhile, the infrared features of people in the vehicle are extracted, the infrared gray value related to the body temperature is obtained, and the value is used as the preset human body infrared gray value.

The noise removing unit is used for removing the part of the gray value larger than the preset human body infrared gray value from the infrared image when the gray value reaches the preset human body infrared gray value. Therefore, factors influencing the gray level judgment can be eliminated, factors with larger gray level values in the vehicle do not exist correspondingly, the obtained heating characteristics are closer to the actual heating characteristics of the vehicle, and the accuracy of data extraction is improved.

Example 4

The embodiment provides a management control system based on electric automobile parking charging, which performs mobile noise processing on the basis of the embodiment 1. The vehicle type recognition driving-away device further comprises a mobile noise processing module. The mobile noise processing module is used for carrying out mobile noise processing on the infrared image before the heating position and the heating characteristic are extracted by the extraction module. The mobile noise processing module comprises a comparison image acquisition unit, a comparison screening unit and a mobile noise eliminating unit.

The contrast image acquisition unit is used for acquiring a plurality of infrared images in different time periods. In selecting the time period, it is preferable that the parked vehicle is in a time period after being parked in the parking space, and the driver and the passenger in the parked vehicle generally get off the vehicle during the time period.

The comparison screening unit is used for comparing the plurality of infrared images to screen out at least one moving target of which the gray value change value is smaller than a preset gray threshold value and the position change amount is larger than a preset position change value. Here, since there are traces of movement in the infrared image when the human body or other moving objects move, the part of the moving objects can be accurately selected.

The mobile noise eliminating unit is used for eliminating the moving target from the infrared image. Therefore, the moving target is screened out by comparing the infrared images in different time periods, and finally the moving target is removed, so that the moving noise with larger heat of human bodies, pets and the like can be avoided, and the accuracy of the extracted heating features is further improved.

Example 5

The embodiment provides a management control system based on electric automobile parking charging, which adds part of functions of a management controller on the basis of embodiment 1. The management controller is also used for acquiring the position information of all the idle parking spaces and simulating the traveling path from the entrance barrier to each idle parking space. The position information of these idle parking stalls can acquire through earth magnetism sensor, and of course, these position information also can acquire through idle electric pile of filling, can also confirm through special position detection module. The traveling path actually has many paths, generally speaking, a parking lot has many roads, and the combination of the roads has many paths, so that a route from a certain vacant parking space to the entrance barrier has many paths. In simulating the travel path, the simulation process is as follows:

(1) presetting all parking spaces in a simulation map; the size proportion of the parking lot and the simulation map is fixed, and each parking space corresponds to one simulation parking space. The simulation map is actually a reduced map of the parking lot, which is similar to various mobile phone maps used in daily life, and can reduce each position and equipment in the parking lot according to a certain reduction scale and generate a corresponding two-dimensional map.

(2) And dividing a connecting area of the simulated parking space corresponding to the idle parking space and the entrance barrier into a plurality of rectangular areas with wide sides connected, and calculating the width of each rectangular area. The occupied parking spaces and other protruding parts of the parking lot are not in the connecting area. These rectangular regions are actually components of a route, and if the width of one of the rectangular regions is too small, the electric vehicle cannot pass through the rectangular regions, so that the width of each rectangular region needs to be calculated.

(3) And judging whether the width of the rectangular area is larger than the vehicle simulation width of the electric automobile in the simulation map. When any point on the curve is positioned below the straight line, the rectangular region corresponding to the point does not meet the condition, namely the width is smaller than the vehicle simulation width, and the electric automobile cannot pass through the rectangular region.

(4) And taking the connecting areas with the widths of all the rectangular areas larger than the vehicle simulation width as a path to be determined. When the width of all the rectangular areas is larger than the vehicle simulation width, the connection area can be used for the electric vehicle to pass through, and accordingly, the connection area is actually a vehicle passing road.

(5) The lengths of all paths to be determined are calculated. The purpose of calculating the length of the path to be determined here is to be able to determine the shortest path and thus optimize the path selection.

(6) And selecting the path to be determined with the shortest length as a traveling path. Therefore, the shortest passing path can be provided for the electric automobile, so that the electric automobile can reach an idle parking space in the shortest time to be charged, and the quick charging of the electric automobile is realized.

The management controller then calculates the length of each travel path. The lengths of the traveling paths are different from each other, and the lengths directly determine the distance that the electric vehicle to be charged needs to travel, and meanwhile, in the process, the energy of the driver is greatly consumed, the electric quantity of the electric vehicle is consumed, especially when the electric vehicle needs to be charged, the electric quantity of the electric vehicle is possibly insufficient, and if the electric vehicle needs to travel along the traveling path, the electric vehicle is possibly dead, and the operation efficiency of the parking lot is affected.

And finally, the management controller sorts the path lengths according to the sequence from small to large, and displays the corresponding idle parking spaces on the intelligent guide screen according to the sorting sequence of the path lengths. Like this, make electric automobile can reach idle parking stall in the shortest time and charge on the one hand, shorten the travel time of vehicle, the energy saving, on the other hand is owing to plan the route of marcing, to some drivers who are not familiar with the parking area environment, is equivalent to providing navigation service for it to promote the service level that parks and charges, make the operation in parking area more smooth, also alleviateed driver's intensity of labour simultaneously.

Example 6

The embodiment provides a management control system based on electric vehicle parking charging, which adds part of functions and structures of a management controller on the basis of embodiment 1. The management controller comprises a vehicle information acquisition module; the vehicle information acquisition module comprises an image acquisition unit, a contour extraction unit, a license plate recognition unit, an ultrasonic unit, a height calculation unit and a height change judgment unit.

The image acquisition unit is used for carrying out image acquisition on the front side and the rear side of the electric automobile parked on the parking space to obtain at least two acquired images. The two captured images should be two images in a short time, for example two pictures taken in one minute.

The contour extraction unit is used for extracting the contour of the collected image and extracting the license plate image matched with a preset rectangular frame. The preset rectangular frame is actually a fixed shape of the license plate, generally, the aspect ratio of the rectangle is determined, and meanwhile, when the outline is extracted, the parking distance of the electric vehicle should be considered, that is, the size of the license plate image is obtained according to the size of the vehicle.

The license plate recognition unit is used for recognizing the character information in the license plate images, and performing superposition comparison on the character information of the license plate images of the two collected images to obtain a string of repeated characters to be used as the license plate information of the electric vehicle.

The ultrasonic unit is used for transmitting ultrasonic waves to the electric automobile located on the occupied parking space and synchronously timing. Because the ultrasonic waves are reflected after being transmitted to the chassis of the vehicle and the propagation speed of the ultrasonic waves in the air is constant, the corresponding propagation distance can be calculated, and further the ground clearance can be calculated. In this embodiment, the timing time is the time interval from the time the ultrasonic detection module transmits the ultrasonic wave from its transmitter to the time the vehicle receives the same ultrasonic wave by the receiver, the transmitter and the receiver being located in the same vertical direction of the chassis of the vehicle.

With reference to fig. 3 and fig. 4, the height calculating unit is configured to calculate the ground clearance of the vehicle from the ground of the corresponding parking space according to the timing time. The formula for calculating the height above the ground is:

wherein, H is the height from the ground, C is the ultrasonic wave propagation speed, T is the timing time, and D is the distance between the transmitting end and the receiving end of the ultrasonic equipment. The propagation speed of the ultrasonic wave is not so great, and is generally 340m/s in air at 15 ℃. Of course, the propagation speed of the ultrasonic wave is positively correlated with the temperature, and the correlated parameters can be set in the actual calculation process. However, since the temperature change is not large in a short time, particularly, during the single timing of the ultrasonic wave, the propagation speed can be considered to be a constant value, which does not excessively affect the accuracy of the ground clearance in the present embodiment. In practice, the value of distance D is very small relative to CT, and in some embodiments, the value of distance D may be taken to be zero. Therefore, the formula for calculating the height above ground can be simplified as:

the height change judging unit is used for judging whether the change value of the ground clearance is larger than a preset height difference or not, and if so, judging that a driver on the electric automobile gets off the automobile and the automobile is used as vehicle-mounted information of the vehicle information. The preset height difference can be based on the height deviation caused by that a single person leaves the electric automobile after the electric automobile is parked. The vehicle-mounted information provides a precondition for subsequent scheduling work, and the operation and maintenance platform can conveniently hold the position information of the driver.

Example 7

Referring to fig. 5, the present embodiment provides a management control method based on electric vehicle parking charging, which is applied to any one of the management control systems based on electric vehicle parking charging provided in embodiments 1 to 6, and the method includes the following steps:

acquiring bottom line images of each parking space in real time;

judging whether the parking space bottom line in the bottom line image is covered by a parked vehicle or not;

when the bottom line of the parking space is covered by a parked vehicle, collecting vehicle position information and a contour image of the parked vehicle;

identifying the parked vehicle in a preset vehicle identification system according to the heating position and the heating characteristic so as to obtain the type of the parked vehicle; the heating position and the heating characteristic correspond to a unique vehicle type in a preset vehicle identification system;

judging whether the vehicle type is an electric vehicle or not;

when the type of the vehicle is a non-electric vehicle, driving away the parked vehicle;

when the type of the vehicle is an electric vehicle, charging the parked vehicle;

acquiring equipment information, a charging state and a charging amount of a charging pile corresponding to an occupied parking space;

displaying the information of the free parking spaces and the equipment information of the charging piles corresponding to the free parking spaces on an intelligent guide screen so as to provide at least one free parking space for the electric automobile entering from the entrance barrier gate;

the vehicle information of the electric automobile parked on the occupied parking space and the equipment information, the charging state and the charging amount of the charging pile corresponding to the occupied parking space are synchronously displayed on the first charging display screen and the second charging display screen, so that the operation and maintenance platform operates the electric automobile when the electric automobile is fully charged, and a driver in a rest room carries out vehicle moving scheduling.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A management control system based on electric vehicle parking charging is applied to a large electric vehicle parking charging station; the large-scale electric vehicle parking charging station is characterized by comprising a parking lot, at least one entrance barrier and a plurality of charging piles respectively corresponding to a plurality of parking spaces; the parking lot comprises an operation and maintenance platform, a rest room and a plurality of parking spaces corresponding to the plurality of electric automobiles respectively; the operation and maintenance platform is used for operating the fully charged electric automobile, the rest room is used for resting a driver of the electric automobile, and each parking space is used for parking the corresponding electric automobile; each entrance barrier corresponds to at least one entrance and exit of the parking lot; each entrance barrier gate is arranged at a corresponding entrance; each charging pile is used for charging the electric automobile parked on the corresponding parking space; the management control system includes:

the vehicle type identification and driving device comprises a first image acquisition module, a bottom line coverage judgment module, a position profile acquisition module, a second image acquisition module, an extraction module, an identification module, a vehicle type judgment module, a driving module and a charging module; the image acquisition module I is used for acquiring bottom line images of all parking spaces in real time; the bottom line covering judging module is used for judging whether the parking space bottom line in the bottom line image is covered by a parked vehicle or not; the position contour acquisition module is used for acquiring vehicle position information and a contour image of the parked vehicle when the parking space bottom line is covered by the parked vehicle; the second image acquisition module is used for acquiring an infrared image in the outline range at the vehicle position according to the vehicle position and the outline image; the extraction module is used for extracting a heating position in the infrared image and heating characteristics of the heating position; the identification module is used for identifying the parked vehicle in a preset vehicle identification system according to the heating position and the heating characteristic so as to obtain the vehicle type of the parked vehicle; the heating position and the heating characteristic correspond to a unique vehicle type in the preset vehicle identification system; the vehicle type judging module is used for judging whether the vehicle type is an electric vehicle or not; the driving-away module is used for driving away the parked vehicle when the vehicle type is a non-electric vehicle; the charging module is used for charging the parked vehicle when the vehicle type is an electric vehicle; and

the vehicle dispatching device comprises at least one intelligent guide screen, a first charging display screen, a second charging display screen and a management controller; the intelligent guide screens correspond to the entrance barriers, and each intelligent guide screen is installed at the corresponding entrance barrier and used for guiding the electric automobile entering from the corresponding entrance barrier; the first charging display screen is arranged in the parking lot and used for displaying vehicle information and a charging state of the electric automobile which is being charged to the operation and maintenance platform; the second charging display screen is arranged in the parking lot and is used for displaying the vehicle information and the charging state of the electric automobile which is being charged to the rest room; the management controller is used for judging whether the electric automobile is parked on each parking space or not and generating corresponding parking space use state data; when the electric automobile is not parked on the parking space, judging that the parking space is an idle parking space, otherwise, judging that the parking space is occupied, and acquiring the vehicle information of the electric automobile parked on the parking space; the management controller is further used for acquiring equipment information, a charging state and a charging amount of a charging pile corresponding to the occupied parking space; the management controller is further used for displaying the information of the free parking spaces and the equipment information of the charging piles corresponding to the free parking spaces on the intelligent guide screen so as to provide at least one free parking space for the electric automobile entering from the entrance barrier gate; the management controller is further used for synchronously displaying vehicle information of the electric automobile parked in the occupied parking space and equipment information, a charging state and a charging amount of a charging pile corresponding to the occupied parking space on the first charging display screen and the second charging display screen, so that operation and maintenance personnel of the operation and maintenance platform can pull out a gun of the electric automobile when the electric automobile is fully charged, and a driver in the rest room can move and schedule the electric automobile;

wherein the management controller comprises a vehicle information acquisition module; the vehicle information acquisition module comprises an image acquisition unit, a contour extraction unit, a license plate recognition unit, an ultrasonic unit, a height calculation unit and a height change judgment unit; the image acquisition unit is used for acquiring images of the front side and the rear side of the electric automobile parked on the occupied parking space to obtain at least two acquired images; the contour extraction unit is used for extracting the contour of the collected image and extracting a license plate image matched with a preset rectangular frame; the license plate recognition unit is used for recognizing the character information in the license plate images, and performing coincidence comparison on the character information of the license plate images of the two collected images to obtain a string of repeated characters as the license plate information of the electric vehicle; the ultrasonic unit is used for transmitting ultrasonic waves to the electric automobile positioned on the occupied parking space and synchronously timing; the height calculating unit is used for calculating the ground clearance of the vehicle from the ground of the corresponding parking space according to the timing time; the formula for calculating the height above the ground is as follows:

h is the height from the ground, C is the ultrasonic propagation speed, T is the timing time, and D is the distance between the transmitting end and the receiving end of the ultrasonic unit(ii) a The height change judging unit is used for judging whether the change value of the ground clearance is larger than a preset height difference or not, and if so, judging that a driver on the electric automobile gets off the automobile and the automobile is used as vehicle-mounted information of the vehicle information.

2. The management and control system based on electric vehicle parking charging as claimed in claim 1, wherein the first image capturing module includes a visible light camera, and the visible light camera is used for capturing a parking space bottom line of the parking space to obtain the bottom line image; the second image acquisition module comprises an infrared camera, and the infrared camera is used for performing infrared shooting on the area in the outline range at the position of the vehicle so as to acquire the infrared image.

3. The electric vehicle parking charging-based management control system according to claim 1, wherein two different vehicle identification modes are preset in the preset vehicle identification system; one of the vehicle identification modes is used to identify a parked vehicle whose heat generation location is the entire region of the parked vehicle as the electric vehicle, and the other vehicle identification mode is used to identify a parked vehicle whose heat generation location is the engine compartment region of the parked vehicle as the non-electric vehicle.

4. The management control system based on electric vehicle parking charging of claim 1, wherein the identification module comprises a characteristic acquisition unit, a gray difference calculation unit and a vehicle type judgment unit; the characteristic acquisition unit is used for acquiring a background gray value and a brightest gray value in the infrared image and taking the background gray value and the brightest gray value as the heating characteristic; the gray difference calculating unit is used for calculating the gray difference value between the brightest gray value and the background gray value; the vehicle type judging unit is used for judging whether the gray difference value is larger than a preset gray value I, if so, the vehicle type is judged to be a non-electric vehicle, and otherwise, the vehicle type is judged to be an electric vehicle.

5. The electric vehicle parking charging-based management control system as claimed in claim 1, wherein the vehicle type identification driving-away device further comprises a noise processing module; the noise processing module is used for carrying out noise processing on the infrared image before the heating position and the heating feature are extracted by the extraction module; the noise processing module comprises a noise area acquisition unit, a noise judgment unit and a noise elimination unit; the noise area acquisition unit is used for acquiring a driving position area and a passenger position area of the parked vehicle in the infrared image; the noise judgment unit is used for judging whether the gray value of the driving position area or the passenger position area reaches a preset human body infrared gray value or not; the noise removing unit is used for removing the part of the gray value larger than the preset human body infrared gray value from the infrared image when the gray value reaches the preset human body infrared gray value.

6. The electric vehicle parking charging-based management control system as claimed in claim 1, wherein the vehicle type recognition drive-away device further comprises a mobile noise processing module; the mobile noise processing module is used for carrying out mobile noise processing on the infrared image before the heating position and the heating feature are extracted by the extraction module; the mobile noise processing module comprises a comparison image acquisition unit, a comparison screening unit and a mobile noise eliminating unit; the contrast image acquisition unit is used for acquiring a plurality of infrared images in different time periods; the comparison screening unit is used for comparing the plurality of infrared images to screen out at least one moving target of which the gray value change value is smaller than a preset gray threshold value and the position change amount is larger than a preset position change value; the mobile noise removing unit is used for removing the mobile target from the infrared image.

7. The management and control system for electric vehicle parking and charging according to claim 1, wherein whether the electric vehicle is parked in the parking space is detected by at least one of geomagnetic induction, parking space lock and parking space state recognition camera, and the vehicle information is obtained; the information displayed on the first charging display screen and the second charging display screen is sequentially displayed according to a priority ranking sequence of charging completion amounts of the charging piles from large to small, and the current screen is used for displaying vehicle information of the electric vehicle which is fully charged or the charging amount of the electric vehicle reaches a preset charging amount.

8. The management control system based on electric vehicle parking charging as claimed in claim 1, wherein the management controller is further configured to obtain position information of all the vacant parking spaces, simulate a traveling path from the entrance barrier gate to each vacant parking space, calculate a length of each traveling path, sort the path lengths in a descending order, and sequentially display the corresponding vacant parking spaces on the intelligent guidance screen according to the sort of the path lengths.

9. A management control method based on electric vehicle parking charging, which is applied to the management control system based on electric vehicle parking charging according to any one of claims 1-8, and is characterized by comprising the following steps:

acquiring bottom line images of each parking space in real time;

judging whether the vehicle type is an electric vehicle or not;

when the vehicle type is an electric vehicle, charging the parked vehicle;