CN109615719B - Freight vehicle non-stop charging system and method based on road safety monitoring system - Google Patents
Freight vehicle non-stop charging system and method based on road safety monitoring system Download PDFInfo
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Abstract
The invention discloses a freight vehicle non-stop charging system and a freight vehicle non-stop charging method based on a road safety transportation early warning monitoring system, wherein the freight vehicle non-stop charging system comprises a monitoring system, a data encryption transmission device and an electronic charging settlement background, the non-stop charging system comprises a sensing device, an industrial personal computer and a video input device, the video input device is connected with the sensing device through the industrial personal computer, the data encryption transmission device comprises a data encryption transmission module and a real-time weighing module, the real-time weighing module is respectively in signal connection with the data encryption transmission module, the data encryption transmission module is in communication connection with the industrial personal computer, the industrial personal computer is connected with the electronic charging settlement background, a camera shoots a front license plate and a rear license plate of a freight vehicle through a special layout algorithm, and the identification accuracy rate. The system has simple structure, quick and convenient installation, does not need to disassemble or change the vehicle structure, is suitable for all trucks to quickly pass through an ETC channel on a highway, and can really realize non-stop charging of freight vehicles.
Description
The technical field is as follows:
the invention relates to the technical field of intelligent traffic, in particular to a freight vehicle non-stop toll collection system and a freight vehicle non-stop toll collection method based on a road safety monitoring system.
Background
With the development of ETC charging, ETC lanes are more and more, but the ETC lanes are more suitable for rapid charging settlement of small cars, passenger vehicles and the like at present. In real life, a plurality of large freight vehicles are often jammed near a high-speed exit, so that the high-efficiency operation of the highway is prevented. The main causes of congestion are: freight vehicles generally need to collect weight through wagon balance in a manual passage and then settle charges, the process is slow, and a congested exit further causes that cars cannot normally travel to a charging bay, and finally congestion of the entrance of the whole expressway is caused. In addition to the problem of congestion, freight vehicles are easily interfered by human factors of drivers in the weighing process, so that the vehicles are not accurately weighed, and finally road toll collection is incorrect, thereby affecting national property loss and damaging the benefits of highway operation companies. Wherein, publication number CN 105139461A's patent discloses a full-vehicle type ETC system, and this patent has proposed through under the prerequisite of having installed the weighbridge at toll station entry and export, realizes that load freight vehicle's ETC passes through, but this technical scheme can not be fine utilizes present current ETC facility to realize the purpose of passing fast.
The traditional ETC uses the microwave special short-range communication between the vehicle-mounted electronic tag arranged on the vehicle windshield and the microwave antenna on the ETC lane of the toll station to carry out background settlement processing by using a computer networking technology and a bank, thereby achieving the purpose that the vehicle can pay road toll without parking through the road and bridge toll station, but the method is not suitable for freight vehicles which are different from passenger cars, the number of miles driven by the weight-bearing tonnage is one of important factors influencing the toll, if the microwave is only selected to carry out the short-range communication, the information of the carried weight, the mileage and the like cannot be counted, devices such as wagon pounds and the like are further required to carry out data acquisition, then the toll amount is calculated, time and labor are wasted, and the process needs wagon weighing, the deceleration and parking on wagon weighing are required, the passing efficiency is influenced, therefore, the invention is required to invent a method which does not change the structure of the vehicle, can not carry out the, The freight vehicle electronic toll collection system of the road safety transportation early warning monitoring system has the advantages of no influence on driving safety, simple structure and remote monitoring, and is used for solving the problems.
Disclosure of Invention
In order to solve the technical problem, the invention discloses a freight vehicle non-stop charging method based on a road safety monitoring system, which is realized by the following steps:
the method comprises the following steps: the system is initialized, the lane is kept in an open state, after the vehicle enters the lane, the vehicle is gradually close to the industrial personal computer through a data encryption transmission device loaded on the vehicle until signals are communicated, and the data encryption transmission device transmits the truck information to the industrial personal computer through a data encryption transmission module;
step two: the industrial personal computer receives the signal and sends the signal to the electronic charging settlement background and simultaneously controls the sensing device to start working, and after the sensing device senses the vehicle, the video input device starts working to shoot the head and the tail of the truck;
step three: transmitting the information shot by the video input equipment to a database for data comparison, and selecting to enter the fourth step or the fifth step according to a data comparison result;
step four: in the third step, the information comparison results sent by the data encryption transmission module to the industrial personal computer in the first step are the same, the lane controller keeps the road smooth, and the electronic toll collection and settlement background calculates and collects the passing fee of the truck;
step five: in the third step, if the information comparison result sent by the data encryption transmission module to the industrial personal computer in the first step is different, the electronic toll settlement background stops working, the industrial personal computer sends a command for closing the railing to seal the lane, the lane controller blocks the lane, and the communication signal lamp sends a no-pass signal.
Further, the data encryption transmission device in the first step sends the truck load and the vehicle information data to the industrial personal computer.
Further, the information shot by the video input device in the third step is transmitted to a database for data comparison, and when the incidence angle of the shot picture is greater than 30 degrees, image simulation comparison is carried out; and when the incidence angle of the shot picture is less than or equal to 30 degrees, carrying out font fitting comparison.
Furthermore, in the fourth step, after the electronic toll collection and settlement background suspends working, the vehicle exits from the sensing area of the sensing device, the industrial personal computer sends a command of closing the railing to seal the lane, the lane controller blocks the lane, and the communication signal lamp sends a no-pass signal.
Further, in the fifth step, the sensing area for the vehicle to drive out includes a sensing area of the main sensing device and/or a sensing area of the auxiliary sensing device.
Furthermore, in the fifth step, after the vehicle exits the sensing area, the lane controller blocks the lane, and the communication signal lamp sends out a no-pass signal.
Further, the image information shot by the video input device in the third step is compared with the information of the database through the character stroke shape in the image information.
Furthermore, the comparison information in the database comprises shape information of the 'hanging' word and stroke shape information of the 'hanging' word.
A system capable of realizing a freight vehicle non-stop charging method based on a road safety monitoring system comprises a monitoring system, a data encryption transmission device and an electronic charging settlement background which are in signal connection, wherein the monitoring system comprises a sensing device, an industrial personal computer and a video input device, the video input device is connected with the sensing device through the industrial personal computer, the sensing device is arranged under the road surface in the vehicle driving direction, the data encryption transmission device comprises a data encryption transmission module and a real-time weighing module, the real-time weighing module is in signal connection with the data encryption transmission module respectively, meanwhile, the data encryption transmission module is in communication connection with the industrial personal computer, and the industrial personal computer is connected with the electronic charging settlement background.
Furthermore, the data encryption transmission device also comprises an information storage module, and the information storage module is in signal connection with the data encryption transmission module.
Furthermore, the system also comprises a lane controller, wherein the lane controller is in signal connection with an industrial personal computer, and the industrial personal computer controls the lane controller to be opened or closed.
Furthermore, the system also comprises a communication signal lamp, and the communication signal lamp and the lane controller synchronously switch signals through a signal switch.
Further, the horizontal distance between the sensing device and the video input equipment is 1-20 meters.
Further, the horizontal distance between the sensing device and the video input device is 9.72+ n meters, and n is the focal length of the video input device.
Further, the sensing device comprises a main sensing device and an auxiliary sensing device, the auxiliary sensing device is arranged on two sides of the main sensing device in the vehicle entering direction, the horizontal distance from the main sensing device to the video input equipment is 9.72+ n meters, and n is the focal length of the video input equipment.
Further, the video input devices are disposed at both sides of the sensing device in the lane direction.
Furthermore, the video input devices are arranged at the entrance of the vehicle driving direction, and the video input devices are arranged in a staggered manner.
Further, the set heights of the video input devices are 0.3-0.8 meter and 1.1-1.8 meters respectively, and the angle formed by the axis between the video input device with the height of 0.3-0.8 meter and the video input device with the height of 1.1-1.8 meters is 30-55 degrees.
Furthermore, a LORA chip is arranged in the data encryption transmission module.
The following effects can be obtained by implementing the technical scheme of the invention:
(1) the invention has simple structure and low cost, does not change the original structure of the transport vehicle, does not influence the driving safety, and belongs to a simple and practical road safety transportation early warning monitoring system.
(2) After the license plate is shot by the camera, the accuracy of the license plate can be obtained by adopting triggering of individual algorithm and ground sensing arrangement, and the accuracy can reach more than ninety-five percent.
(3) And comparing the data of the freight vehicle comprehensive supervision platform with the information received by the high-speed toll lane equipment. The condition that the communication fee is reduced due to different loads of the entrance toll station and the exit toll station caused by the fact that the vehicles are used for changing trailers in the high-speed toll service area can be avoided.
(4) The system has stable work and long endurance time, and can not be connected in series when a large number of signals are transmitted, received and transmitted simultaneously.
Drawings
FIG. 1 is a schematic diagram of a non-stop toll collection system for freight vehicles based on a road safety monitoring system according to the present invention;
FIG. 2 is a second schematic view of the non-stop toll collection system for freight vehicles based on a road safety monitoring system according to the present invention;
FIG. 3 is a schematic view of the operation flow of the ETC system for freight vehicles based on the road safety monitoring system according to the present invention;
FIG. 4 is a schematic diagram of a process of image recognition of the ETC system of the freight vehicle based on the road safety monitoring system according to the present invention;
fig. 5 is a schematic diagram of the shooting status of the video input device 13 of the non-stop toll collection system for freight vehicles based on the road safety monitoring system according to the present invention.
Legend: 1. a monitoring system; 2. a data encryption transmission device; 3. an electronic charge settlement background; 4. a lane controller; 5. a database; 11. an induction device; 12. an industrial personal computer; 13. a video input device; 21. a data encryption transmission module; 22. an information storage module; 23. a real-time weighing module; 231. a vehicle weight stress detection sensor; 232. a weighing controller; 41. a communication signal lamp; 42. a signal transfer switch; 111. a main sensing device; secondary sensing means.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the details of the description.
As shown in fig. 1 and fig. 2, the present embodiment provides a freight vehicle electronic toll collection system based on a road safety monitoring system, wherein the electronic toll collection system is similar to the existing ETC system in external form, but the composition, working mode, function and social contribution degree are different from the ETC, and since there is no product of this type before, it is described here for easy understanding that it is compared with the ETC, and it includes a monitoring system 1, a data encryption transmission device 2 and an electronic toll settlement background 3, wherein the monitoring system 1 and the electronic toll settlement background 3 are both arranged at a toll station, and the data encryption transmission device 2 is arranged on a truck passing the toll station, when the truck approaches the toll station, the signal sent by the data encryption transmission device 2 is gradually acquired by the monitoring system 1, so that the three can be connected with each other, the monitoring system 1 has the effect that the vehicle information of the truck can be clearly recorded and identified when the truck drives into the electronic toll collection system, such as a license plate, a model, color and other information, the monitoring system 1 in the scheme comprises a sensing device 11, an industrial personal computer 12 and a video input device 13, the sensing device 11 is connected with the video input device 13 through the industrial personal computer 12, the sensing device 11 is arranged under the road surface of the driving direction of the truck, when the sensing device 11 senses the vehicle signal, the sensing signal is transmitted to the industrial personal computer 12, the industrial personal computer 12 controls the video input device 13 to start working after obtaining the signal sent by the sensing device 11, and the video input device 13 is started and starts to shoot the vehicle information of the driven truck.
In the present embodiment, the video input device 13 is exemplified by a camera, but is not limited to an implementation of the camera, and the same sensing device may be selected from one or a combination of an induction coil, an infrared sensing device, or an optical sensor, and is exemplified by an induction coil here.
The data encryption transmission device 2 installed on the truck comprises a data encryption transmission module 21 and a real-time weighing module 23, the real-time weighing module 23 is respectively in signal connection with the data encryption transmission module 21, meanwhile, the data encryption transmission module 21 is in communication connection with an industrial personal computer 12, and the industrial personal computer 12 is connected with an electronic charging settlement background 3, wherein the real-time weighing module 23 can adopt a vehicle-mounted weight stress detection sensor 231, the detection sensor can be one or more of a strain type stress detection sensor, a piezoresistive type stress detection sensor or a capacitance type stress detection sensor, in practice, the vehicle-mounted weight stress detection sensor 231 can be installed on the frame of the transport vehicle, the specific installation number and position can be determined according to the vehicle type and the chassis structure, the number is 4-8 under the common condition, and the vehicle-mounted weight stress detection sensor 231 can be evenly installed on the frame after the installation number is determined, the vehicle-mounted cargo weight value is measured as accurately as possible, and the vehicle-mounted weight stress detection sensor 231 sends the collected information to the weighing controller 232 through a transmission cable or a wireless communication module.
The data encryption transmission module 21 is installed on the front windshield of the freight vehicle and is used for receiving the load data of the receiving and weighing controller 232 and transmitting the data to the electronic charging settlement background 3.
The weighing controller 232 here employs a PLC microprocessor and assists with some other chips such as: acceleration detects the chip, the temperature compensation chip, gravity detects the chip etc. and weighing controller 232 also can add simultaneously and establishes the module that has wireless transmission and receive the function for weighing controller 232 can carry out wireless communication with on-vehicle weight stress detection sensor 231 through wireless communication's mode and be connected, thereby has avoided because the transmission effect influence of external environment's change to transmission cable, can improve certain degree of accuracy. The weighing controller 232 has 3 wired channels compatible with the on-board weight stress detection sensor 231, 4 wireless transmission input channels, an A/D conversion device, and display processing input signals, and performs comprehensive processing through software, and sums up the channels to obtain the real-time gross cargo weight of the freight vehicle.
Meanwhile, the weighing controller 232 may also be connected to a card reader of an electronic payment card, so that the electronic payment card can be inserted into the weighing controller 232, and includes vehicle information and entry information, and the entry information enters a high-speed toll gate by the monitoring system 1 according to the freight vehicle, and directly passes through a platform to send the entry information to the weighing controller 232 via a network.
Weighing controller 232 can install and carry out waterproof, shockproof, the heat dissipation is handled in the freight train driver's cabin, if set up the dust cover at weighing controller 232 outsidely, and set up weighing controller 232 in the position that is higher than the driver's cabin bottom surface, set up the bottom at the dust cover with the ventilation louvre, even there is liquid splatter like this also difficult influence weighing controller 232 safety work, for example, can install weighing controller 232 around the copilot storage tank here, weighing controller 232 is connected with supporting big dipper or GPS through RS232 RS485 serial ports, communication protocol takes JT/T808-2011, big dipper or GPS device are vehicular big dipper or GPS device, thereby realize the locate function to the freight train.
Preferably, the data encryption transmission device 2 further includes an information storage module 22, information such as a license plate number, a name of a vehicle owner, a working qualification certificate number, an engine number, a tonnage of vehicle core, a driving speed, a driving time, information of loaded goods, a vehicle type and the like is stored in the information storage module 22, wherein the license plate number, the name of the vehicle owner, the working qualification certificate number, the engine number, the tonnage of vehicle core and the vehicle type information are write-protection type read-only data, so that the information storage module 22 is equivalent to an "identity card" of the vehicle, and each vehicle has specific identity information, so that the vehicle can really achieve one vehicle card, and meanwhile, the information storage module 22 is in signal connection with the data encryption transmission module 21, and the data encryption transmission module 21 completes reading and transmission work of information in the signal storage module 22.
When a truck drives into a high speed, at a charging post at a high-speed entrance, a data encryption transmission module 21 in a data encryption transmission device 2 arranged on the truck transmits vehicle information in an information storage module 22 and loaded goods information acquired by a real-time weighing module 23 to a monitoring system 1 at the charging post, and the monitoring system 1 receives the information and uploads the information to a comprehensive monitoring platform of a freight vehicle for storage and record; when the truck drives out of the high speed, the data encryption transmission device 2 installed on the truck transmits information again when the truck drives in the high speed, the monitoring system 1 compares the information, when the vehicle information is consistent with the vehicle information when the truck drives out, the sensing device 11 starts to work, and other devices in the system start to work, and follow-up work after the sensing device 11 of the non-stop toll collection system works in the text is carried out.
The significance of using the GPS or the Beidou lies in that the system can realize single positioning, reporting and alarming of vehicles, realize early warning monitoring of 'three-over-one fatigue' of road transport vehicles, and synchronize early warning monitoring data to a provincial supervision platform to achieve data sharing.
Preferably, the system further comprises a lane controller 4, wherein the lane controller 4 may be a lifting type barrier, or a movable rail capable of being lifted or dropped, or a turning plate type barrier, and the like, the lane controller 4 is in signal connection with the industrial personal computer 12, and the industrial personal computer 12 controls the lane controller 4 to be opened or closed. Preferably, the system further comprises a communication signal lamp 41, and the communication signal lamp 41 switches signals synchronously with the lane controller 4 through a signal switch 42. Therefore, when a vehicle runs on duty or the monitoring system 1 obtains initial and final information of the vehicle through the vehicle-mounted data encryption transmission device 2, or the information obtained by the monitoring system 1 is not matched with the information shot by the actual video input equipment 13, the communication signal lamp 41 and the lane controller 4 react simultaneously, the lane is blocked by the lane controller 4, the communication signal lamp 41 is changed from a passage state to a forbidden state, and green can be referred to as the passage state and red can be referred to as the forbidden state, and further patterns displayed in the signal lamp can be displayed by combining colors.
Due to the uncertainty of the vehicle volume of the truck, the video input device 13 is now arranged at a horizontal distance of 1-20 meters from the sensing means 11. Thus, when the sensing device 11 senses that the truck drives in or out, the video input device 13 can shoot the video, and the license plate of the truck and the characters behind the truck can be clearly identified.
The preferred horizontal distance of the sensing means 11 from the video input device 13 is 9.72+ n meters, where n is the focal length of the video input device 13. Repeated experiments show that when the horizontal distance between the sensing device 11 and the video input device 13 is 9.72 meters, the video input device 13 can shoot clear and complete vehicle information.
In addition, the video input devices 13 are arranged in a plurality of areas with the height of 0.3-0.8 meter and 1.1-1.8 meter respectively, and the angle formed by the axis between the video input device 13 arranged in the area with the height of 0.3-0.8 meter and the video input device 13 arranged in the area with the height of 1.1-1.8 meter is 30-55 degrees. This kind of setting mode can promote the discernment probability of video input device 13 to the license plate, and when the incident angle was greater than 30 degrees when video input device 13 was shot, very big error had in the chinese character discernment, for example: the character of 'hanging' is similar to the character of 'Gui' in the image due to the fact that the images displayed by overlapping or stretching of shooting angles are overlapped, when the image is shot, multi-angle pictures in a database need to be compared, namely image simulation comparison needs to be carried out, and when the incidence angle is smaller than 30 degrees, character fitting comparison is carried out.
And the setting of the device axis angles of the video input device 13 in the two height ranges can keep the incident angle between the video input device 13 and the license plate within 30 degrees as much as possible, and after a plurality of attempts, the error recognition rate of the license plate can be reduced by at least 10 percent under the condition that the character form fitting comparison and the image simulation comparison in the two angle ranges are matched with each other for use after the angle is adjusted.
In the engineering project list, how to process information is of great concern in recognition. The identification steps of the rear license plate of the truck, such as Beijing A1234 rack, are as follows: dividing blocks firstly: province + letter + number + Chinese character-province matching-letter matching-number matching-Chinese character matching. The key focus is Chinese character matching, and in Chinese character matching, the key focus is on hanging characters. The step of fitting Chinese characters is shown in fig. 4, after the video input device 13 obtains the photo, the incident angle of the photo is calculated by a program, when the incident angle is less than 30 degrees, Chinese character font fitting is adopted, otherwise, image simulation comparison is adopted.
Comparing the pictures shot by the video input equipment 13, and determining the identification mode according to the angles of the video input equipment 13 and the license plate:
when the incident angle exceeds 30 degrees, the captured photos are searched for vehicle information according to a simulation comparison method, and as shown in fig. 5, when the angle is less than or equal to 30 degrees, the license plate information is processed by adopting a Chinese character fitting mode. The included angle is determined according to the vehicle speed V and the clear picture which can be shot by the best shooting angle of the camera in the moving process of the vehicle. When the speed passes through the shooting area within 15KM/h, the picture is acquired through experimental data, and the included angle is 30 degrees when the picture definition is optimal.
The incident angle position A is set, the height of the camera is H, the vehicle speed is V, the time for extracting the clearest picture is t, and the calculation is carried out according to the formula tanA which is H/vt. And obtaining an angle A, and comparing in a Chinese character analog matching mode when the angle A is less than or equal to 30 degrees. The recognition rate can reach over 95 percent and approach 100 percent. When A is greater than 30 degrees, the license plate information can be clearly distinguished by adopting a simulation comparison mode so as to achieve the effect of reducing the misrecognition rate by 10 percent, which is described by actual test stage data in the table 1, but the numerical values in the table 1 do not limit the implementation of the technical scheme:
TABLE 1
The table 1 provides a plurality of examples of experimental testing stages for reference, data in the experiment are obtained by testing the field examples, the system provided in the scheme is used for testing license plates in different regions in the experiment, monitoring and detection of vehicle information, load, travel, mileage, vehicle speed and payment amount are realized, when the station passing vehicle speed is within 15KM/h and the shooting incidence angle is within 30 degrees, the recognition results were all correct, and only when the vehicle speed was 35KM/h and the shooting angle of incidence was 45 °, an unrecognized case occurred, in the second experiment, the system completes correct recognition action under the same experiment condition, and the experiment proves that the vehicle passing speed in the prior art, namely, the artificial channel is 5KM/h, the ETC channel is 20KM/h, and the system can accurately identify.
Compared with the existing station-passing charging system, the identification rate of the existing station-passing charging system to the trucks can not reach the identification rate of the scheme, the non-identification rate and the error identification rate of the existing station-passing charging system exceed those of the existing station-passing charging system, meanwhile, the existing station-passing charging system can not count the information such as vehicle information, driving information, cargo carrying state and the like, and the existing station-passing charging system can not provide a basis for realizing the intelligent traffic in the future.
Preferably, the sensing device 11 includes a main sensing device 111 and a sub sensing device 112, wherein the number of the sub sensing devices 112 may be 1 or more, the sub sensing devices 112 are disposed at two sides of the main sensing device 111 in the vehicle driving direction, in other words, the main and sub sensing devices 111, 112 are disposed along the lane direction, when the number of the sub sensing devices 112 is greater than or equal to 2, the sub sensing devices 112 are symmetrically disposed at two sides of the main sensing device 111, and the horizontal distance between the main sensing device 111 and the video input device 13 is 9.72+ n meters, and the same n is the focal length of the video input device 13.
Preferably, the video input devices 13 are disposed on two sides of the sensing device 11 along the lane direction, that is, when a vehicle enters, the plurality of video input devices 13 can shoot the front and the back of the vehicle at the same time, the video input device 13 in front of the vehicle shoots the front license plate of the vehicle and the picture of the front of the vehicle for comparing the vehicle information, and the video input device 13 disposed behind the rear of the vehicle at the toll gate needs to shoot the picture information of the rear license plate and the rear of the vehicle.
Further preferably, two or more video input devices 13 are arranged at the entrance of the vehicle entering direction behind the rear of the vehicle at the toll post, and the video input devices are arranged in a staggered manner. This is because the video input device 13 disposed behind the car tail must take the image of the rear license plate and take the image of the car tail, which requires a wide angle of the video input device 13, but there is a problem here, after the truck is transported for a long time, the license plate is generally dirty, which directly affects the recognition work of the video input device 13 on the license plate, and the position of the rear license plate is generally in the shadow position below the car body, the brightness difference between the rear license plate and the car tail is very large, if the car tail is selected for focusing, the brightness of the shadow position of the rear license plate is not enough to make the video input device 13 recognize the rear license plate in the normal state, if the rear license plate is stained, the rear license plate cannot be recognized, but if the video input device 13 is focused on the rear license plate, the brightness of the car tail is too high, so that the license plate number information sprayed on the tail of the vehicle is highlighted and submerged, and cannot be identified, two video input devices 13 are arranged behind the tail of the vehicle, the two video input devices 13 are respectively focused on the tail part and the rear license plate of the vehicle, the license plate number information on the tail of the vehicle and the license plate number information on the rear license plate can be identified, and in addition, the license plate, the hopper and the goods can be prevented from being changed by a driver of the vehicle. By adopting the technical scheme, the recognition accuracy of the rear license plate shooting can reach more than ninety-five percent on the premise of no algorithm analysis support. By optimizing the alignment information in the database, such as: the structure and strokes of the rear license plate containing numbers, Chinese character 'hanging' and Chinese character 'hanging' are respectively used as comparison conditions, so that the system recognition rate tends to 100% under the condition of no shielding.
The video input device 13 transmits the shot front and rear license plates of the freight vehicle to the industrial personal computer 12 through a network cable, and finally transmits the license plates to the monitoring system 1 by combining the vehicle information received by the data encryption transmission module 21 of the industrial personal computer 12, so as to realize quick charge settlement of different carrying capacity and different mileage for the freight vehicle according to the load data.
As shown in fig. 3, the present embodiment further provides a method for charging a freight vehicle without stopping a vehicle based on a road safety monitoring system, where based on the system in the present embodiment, the method is implemented by the following steps:
the method comprises the following steps: the system is initialized, the lane is kept in an open state, after the vehicle enters the lane, the vehicle is gradually close to the industrial personal computer 12 through the data encryption transmission device 2 loaded on the vehicle until signals are communicated, and the data encryption transmission device 2 sends truck information to the industrial personal computer 12 through the data encryption transmission module 21; the data encryption transmission device 2 sends the truck load and vehicle information data to the industrial personal computer 12.
Step two: the industrial personal computer 12 receives the signal and sends the signal to the electronic charging settlement background 3 and simultaneously controls the sensing device 11 to start working, and after the sensing device 11 senses the vehicle, the video input device 13 starts working to shoot the head and the tail of the truck;
step three: the information shot by the video input equipment 13 is transmitted to the database 5 for data comparison, and the step four or the step five is selected according to the comparison result, if the comparison results are the same, the step four is performed, and if the comparison results are different, the step five is performed; and the picture information shot by the video input device 13 is compared with the database 5 through the character stroke shapes in the picture information.
Step four: in the third step, the comparison result is the same as the information sent to the industrial personal computer 12 by the data encryption transmission module 21 in the first step, the lane controller 4 controls the rail to be opened, the electronic toll collection and settlement background 3 calculates and collects the passing fee of the truck, and at the moment, the vehicle can normally pass through a toll post;
step five: in the third step, if the comparison result is different from the information sent to the industrial personal computer 12 by the data encryption transmission module 21 in the first step, the electronic toll collection settlement background 3 suspends the work, the lane controller 4 controls the rail to be closed, the communication signal lamp 41 sends out a no-pass signal, and at this time, the vehicle cannot pass through the toll post.
When the electronic charging settlement background 3 charges, the road toll is deducted and settled according to the real-time load data obtained by the monitoring system 1 from the data encryption transmission device 2, and the electronic charging settlement background 3 can determine whether the vehicle changes the trailer in the service area or not and evades the road toll by comparing the vehicle information obtained by the monitoring system 1 and the industrial personal computer 12.
And step four, after the electronic toll collection and settlement background 3 suspends working, the vehicle exits from the sensing area of the sensing device 11, the lane controller 4 controls the rail to be closed, and the communication signal lamp 41 sends out a no-pass signal. When the truck passes through the toll post, the information comparison is inconsistent, but the truck stops actively to receive inspection, and does not exit from the sensing area of the sensing device 11, the lane controller 4 can choose not to start, at the moment, the staff can perform preliminary inspection, check information and hand over to relevant departments for processing, but no matter whether the lane controller 4 is started at the moment, the communication signal lamp 41 should be in a change state and send out warning information that the truck cannot pass through.
Further, in step four, the sensing area for the vehicle to exit includes the sensing area of the main sensing device 111 and/or the sensing area of the auxiliary sensing device 112, the lane controller 4 controls the balustrade to be closed, and the communication signal lamp 41 sends out the no-pass signal. When the truck is too large in size and the truck body is long, the main sensing device 111 and the auxiliary sensing device 112 are required to be matched to prolong the sensing area, so that the truck body can be prevented from moving in the sensing area, but the length is too long, the sensing device cannot sense whether the truck drives away from the sensing area in time, and therefore the situation that the truck head of the truck drives out of a toll post is avoided, but the sensing device 11 does not monitor that the truck drives out.
Further, the match information in the database 5 includes "hang" word shape information and "hang" word stroke shape information. The shape information of the 'hanging' character and the shape information of the 'hanging' character stroke are very important for identifying the truck, a database which is responsible for storing comparison information is arranged in the existing shooting identification system, the comparison information which is usually stored in the database is short names, letters and numbers of all provinces, such as 'Jing, jin, Ji, Xiang, Wan, Jiang, A, B, C, 1, 2, 3' and the like, in the identification process, the identification degrees of the letters and the numbers are very high, but the accuracy rate of identification of the short names of the provinces is not satisfactory, in the subsequent technical improvement, the short names of the provinces are set as priority comparison objects in the province area, and therefore the monitoring system can preferentially compare the 'hanging' character with the short names of the provinces in the identification and comparison process.
For example, the following steps are carried out: when a truck with a brand number of 'Ji A12345 hanging' is driven into Guangxi, a charging system arranged in Guangxi can easily identify the hanging character as 'Gui' for short in Guangxi, so that a large amount of false identifications are caused, the normal work of a charging post is influenced, and in addition, the character components are similar in structure and are also easy to identify errors, such as the short name in Shaanxi province: "shan", Hainan province: "qiong", Zhejiang province: characters such as 'Zhe' are easy to identify errors; meanwhile, the 'hang' is easy to be confused with 'E' and 'F' during recognition.
The truck owner can usually amplify and write the license plate number on the truck body at the tail of the truck, so that the video monitoring shooting is convenient, but the tail of the truck body of many truck types is not flat, the written font can form turning patterns along with the uneven rise or depression of the truck body, and the like, so that the content written on the truck body cannot present the normal patterns, the font deformation also causes the misrecognition of the video monitoring system, the method of respectively comparing the shape information of the 'hanging' character and the shape information of the 'hanging' character stroke is adopted, the comprehensive result of the Chinese character font and the stroke comparison can be obtained after the multiple comparison, the accuracy of the video monitoring is greatly improved, and the video input device 13 and the database 5 are optimized, so that the system can achieve the ultrahigh recognition rate of more than 95% and approaching 100%.
Meanwhile, the transmission chip adopted in the data encryption transmission module 21 in the system is an LORA chip, and the chip has the advantages that: data under the big traffic flow is not connected in series, the interference killing feature is strong, transmission is stable, energy is saved, the traffic flow is dense usually at the charge post, this also makes signal connection easily take place when a large amount of wireless transmission signals transmit, the receiver signal blocks up the scheduling problem, and when passing through the charge post, for guaranteeing can smooth post of crossing, signal transmission's stability is also crucial, intermittent type signal that sometimes does not have or time is strong weak causes the discernment mistake very easily, this can cause the unable normal smooth post of crossing of vehicle, then can cause the traffic jam, even cause the traffic accident, simultaneously to freight vehicle, its operation time is unfixed, this also needs the vehicle-mounted equipment should be the duration strong, consequently select this chip as the communication chip of module specially here.
Example (b):
the specific examples are as follows: when the front license plate of the truck is Beijing A12345, the rear license plate is Beijing A1234 rack.
When the road safety transportation early warning monitoring system is initially installed on the vehicle, the vehicle is registered on a freight comprehensive supervision platform and comprises vehicle owner information, operation information, vehicle-mounted related equipment information and the like. When the weight of the whole truck loaded with cargoes is 49T, the truck enters the entrance of high-speed Beijing in Kyoto Australia and the destination is Changsha. In the driving process, the vehicle is supervised by a road safety transportation early warning monitoring system, and behaviors such as overspeed, fatigue driving and the like can be effectively controlled. When the trailer is changed to be hung on A1234 in a certain service area in Henan, the load information of the vehicle is inconsistent with the information of the number plate of the vehicle which is out of the station, the vehicle cannot pass through, and manual intervention is needed to see whether the vehicle has the phenomenon of avoiding the toll illegally. If the vehicle does not change the trailer, all the information is compared with the information when the vehicle enters the highway toll station when the vehicle runs out of the highway. In the license plate recognition, after a truck enters a toll lane, the ground induction coil is triggered, and the front license plate and the rear license plate are shot at the same time. The invention utilizes a data encryption transmission module, a chip in the module is an LORA chip, and the module is a special module of the Internet of things with strong anti-interference and long-distance transmission. When a lot of vehicles are crowded at a toll station, how to solve the anti-interference performance between the vehicles is a big problem, all information of the vehicles can be well sent to a lane for being compared with background data, the method is very critical, effective comparison is not carried out, and the phenomenon of avoiding toll fee still exists in the whole system.
The devices referred to in this application may be referred to as follows:
the main structure and the selecting device of the monitoring system 1, the electronic toll collection and settlement background 3, the lane controller 4 and the database 5 can refer to the device used in the existing ETC toll station, the data encryption transmission device 2 is a wireless communication device with a LORA chip and utilizes a spread spectrum technology, wherein the monitoring system 1 can be similar to a Road Side Unit (RSU) in the ETC system in the function of the system, a LoRaWAN intelligent module is mounted in a data encryption transmission module 21 in the data encryption transmission device 2, and the data encryption transmission device 2 is mounted on a truck as an on-board unit (OBU) terminal;
the induction device 11 comprises an infrared induction device, an electronic induction device, a Bluetooth distance induction device, a ps3 induction device, an automatic induction device and a sliding door automatic induction device;
the industrial personal computer 12 is an ARK-V series embedded industrial personal computer;
the data encryption transmission module 21: encrypting and transmitting Tianrui green shield data;
the information storage module 22: fort i net storage module;
vehicle weight stress detection sensor 231: a METTLER TOLEDO weighing sensor/weighing module, a strain gauge weighing sensor/beam type weighing sensor;
the weighing controller 232: a Zhuhai Qinghe weighing controller, a Mettler-Torluo weighing controller and a JS-300 weighing controller;
signal changeover switch 42: ALPS SRRM series signal transfer switch, STS static dual power transfer switch;
the induction coil may be: electromagnetic inductor, ground induction coil (buried in the earth's surface).
The above device is not limited to its brand and model, and is only used for better illustration of the system, and the device is not limited to the principle type of the device, and it should be understood that the device can be used to satisfy the working condition and effect.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered by the claims of the present invention.
Claims (17)
1. A freight vehicle non-stop charging method based on a road safety monitoring system is characterized by comprising the following steps:
the method comprises the following steps: the system is initialized, the lane is kept in an open state, after the vehicle enters the lane, the vehicle is gradually close to the industrial personal computer (12) through the data encryption transmission device (2) loaded on the vehicle until signals are communicated, and the data encryption transmission device (2) transmits truck information to the industrial personal computer (12) through the data encryption transmission module (21);
step two: the industrial personal computer (12) receives the signals and sends the signals to the electronic charging settlement background (3) and simultaneously controls the sensing device (11) to start working, and after the sensing device (11) senses the vehicle, the video input device (13) starts working to shoot the head and the tail of the truck;
step three: the information shot by the video input equipment (13) is transmitted to the database (5) for data comparison, and when the incidence angle of the shot picture is more than 30 degrees, image simulation comparison is carried out; when the incident angle of the shot picture is less than or equal to 30 degrees, carrying out font fitting comparison, and selecting to enter the fourth step or the fifth step according to a comparison result;
step four: in the third step, the comparison result is the same as the information sent to the industrial personal computer (12) by the data encryption transmission module (21) in the first step, the lane controller (4) keeps the road smooth, and the electronic charging settlement background (3) calculates and collects the toll of the truck;
step five: in the third step, the comparison result is different from the information sent to the industrial personal computer (12) by the data encryption transmission module (21) in the first step, the electronic toll settlement background (3) stops working, the industrial personal computer (12) sends a command of closing the railing to close the lane, the lane controller (4) blocks the lane, and the communication signal lamp (41) sends a signal of forbidding passing.
2. The method for charging freight vehicles without parking based on the road safety monitoring system according to claim 1, characterized in that in the first step, the data encryption transmission device (2) transmits the data of the truck load and the vehicle information to the industrial personal computer (12).
3. The freight vehicle non-stop charging method based on the road safety monitoring system as claimed in claim 1, wherein in the fifth step, after the electronic charging settlement background (3) stops working, the vehicle exits from the sensing area of the sensing device (11), the industrial personal computer (12) sends out a command of closing the railing to seal the lane, the lane controller (4) seals the lane, and the communication signal lamp (41) sends out a no-pass signal.
4. The method for toll collection of freight vehicles based on road safety monitoring system as claimed in claim 3, wherein in the fifth step, the sensing area for vehicles to exit comprises the sensing area of the primary sensing device (111) and/or the sensing area of the secondary sensing device (112).
5. The method for charging freight vehicles without stopping the vehicle according to claim 1, wherein the image information after being shot by the video input device (13) in the third step is compared with the database (5) through the shape of the character strokes in the image information.
6. The non-stop toll collection method for freight vehicles based on road safety monitoring system as claimed in claim 5, characterized in that the comparison information in the database (5) comprises the shape information of the "hanging" word and the shape information of the stroke of the "hanging" word.
7. A system capable of realizing the freight vehicle non-stop charging method based on the road safety monitoring system as claimed in any one of claims 1 to 6, characterized in that the system comprises a monitoring system (1), a data encryption transmission device (2) and an electronic charging settlement background (3) which are in signal connection, the monitoring system (1) comprises a sensing device (11), an industrial personal computer (12) and a video input device (13), the video input device (13) is connected with the sensing device (11) through the industrial personal computer (12), the sensing device (11) is arranged under the road surface of the vehicle driving direction, the data encryption transmission device (2) comprises a data encryption transmission module (21) and a real-time weighing module (23), the real-time weighing module (23) is in signal connection with the data encryption transmission module (21), and the data encryption transmission module (21) is in communication connection with the industrial personal computer (12), the industrial personal computer (12) is connected with the electronic charging settlement background (3).
8. The system for the non-stop freight car charging method based on the road safety monitoring system as claimed in claim 7, wherein: the data encryption transmission device (2) further comprises an information storage module (22), and the information storage module (22) is in signal connection with the data encryption transmission module (21).
9. The system for the non-stop freight car charging method based on the road safety monitoring system as claimed in claim 8, wherein: the device is characterized by further comprising a lane controller (4), wherein the lane controller (4) is in signal connection with an industrial personal computer (12), and the industrial personal computer (12) controls the lane controller (4) to be opened or closed.
10. The system for toll collection of freight vehicles based on road safety monitoring system according to claim 9, characterized in that it further comprises a communication signal lamp (41), said communication signal lamp (41) switching signal synchronously with the lane controller (4) via a signal switch (42).
11. The system for toll collection of freight vehicles based on a road safety monitoring system as claimed in claim 7, wherein the sensing device (11) is horizontally distanced from the video input device (13) by 1-20 m.
12. The system for toll collection of freight vehicles based on road safety monitoring system as claimed in claim 11, wherein the horizontal distance between the sensing device (11) and the video input device (13) is 9.72+ n meters, and n is the focal length of the video input device (13).
13. The system for the toll collection method of the freight vehicle based on the road safety monitoring system as claimed in claim 12, wherein the sensing device (11) comprises a main sensing device (111) and a secondary sensing device (112), the secondary sensing device (112) is arranged at two sides of the main sensing device (111) in the vehicle entering direction, the horizontal distance from the main sensing device (111) to the video input device (13) is 9.72+ n meters, and n is the focal length of the video input device (13).
14. The system for the non-stop freight car charging method based on the road safety monitoring system as claimed in claim 7, wherein: the video input devices (13) are arranged on two sides of the sensing device (11) along the lane direction.
15. The system for the non-stop freight car charging method based on the road safety monitoring system as claimed in claim 7, wherein: the video input devices (13) are arranged at the entrance of the vehicle driving direction, and are arranged in a staggered manner.
16. The system for the toll collection method for freight vehicles based on the road safety monitoring system as claimed in claim 15, wherein: the set heights of the video input devices (13) are 0.3-0.8 meter and 1.1-1.8 meters respectively, and the angle formed by the axis between the video input device (13) with the height of 0.3-0.8 meter and the video input device (13) with the height of 1.1-1.8 meters is 30-55 degrees.
17. The system for the non-stop freight car charging method based on the road safety monitoring system as claimed in claim 7, wherein: the data encryption transmission module (21) is internally provided with a LORA chip.
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| CN112581749B (en) * | 2019-09-12 | 2023-06-13 | 阿里巴巴集团控股有限公司 | Method, system, device and electronic equipment for obtaining vehicle resource occupation information |
| CN111152729B (en) * | 2019-12-27 | 2021-07-13 | 北京万集科技股份有限公司 | Emission angle adjusting method and system, storage medium and electronic device |
| CN111476916B (en) * | 2020-04-13 | 2022-04-15 | 佛山职业技术学院 | Vehicle passing method and system based on non-inductive payment and computer equipment |
| CN112133114A (en) * | 2020-09-27 | 2020-12-25 | 林孔文 | Novel highway lane control system |
| CN112561143A (en) * | 2020-12-07 | 2021-03-26 | 支付宝(杭州)信息技术有限公司 | Freight route recommendation method and device, and freight vehicle charging method and device |
| CN113298968A (en) * | 2021-05-21 | 2021-08-24 | 深圳市大道至简信息技术有限公司 | ETC non-inductive fee deduction management method and system based on high-order video |
| CN113658346B (en) * | 2021-06-02 | 2023-03-10 | 中创未来智能技术(南京)研究院有限公司 | Anti-congestion highway ETC lane and working method thereof |
| CN115187170B (en) * | 2022-07-12 | 2023-04-07 | 深圳市泰洲科技有限公司 | Seamless clearance system and use method thereof |
| CN115862170B (en) * | 2023-02-27 | 2023-06-09 | 成都智源易行科技有限公司 | License plate recognition auxiliary system and method for ETC charging system |
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| CN103065370B (en) * | 2012-12-21 | 2016-01-20 | 南京九竹科技实业有限公司 | A kind of intelligent parking charging administration system based on automobile environment-protection electronic tag |
| CN103106410B (en) * | 2013-01-10 | 2016-05-18 | 北京万集科技股份有限公司 | A kind of method and system that realize intelligent bus stop board |
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| CN106530713A (en) * | 2016-12-19 | 2017-03-22 | 天地协同科技有限公司 | Freight ETC based on road safety transportation pre-warning and monitoring system |
| CN107301414B (en) * | 2017-06-23 | 2020-07-07 | 厦门商集网络科技有限责任公司 | Chinese positioning, segmenting and identifying method in natural scene image |
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