CN110853162A - Working method of freeflow system for multiple lanes of highway - Google Patents
Working method of freeflow system for multiple lanes of highway Download PDFInfo
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- CN110853162A CN110853162A CN201911028477.XA CN201911028477A CN110853162A CN 110853162 A CN110853162 A CN 110853162A CN 201911028477 A CN201911028477 A CN 201911028477A CN 110853162 A CN110853162 A CN 110853162A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000000872 buffer Substances 0.000 claims description 3
- 238000011835 investigation Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 6
- 241000497429 Obus Species 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07B—TICKET-ISSUING APPARATUS; FARE-REGISTERING APPARATUS; FRANKING APPARATUS
- G07B15/00—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points
- G07B15/06—Arrangements for road pricing or congestion charging of vehicles or vehicle users, e.g. automatic toll systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- Signal Processing (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a working method of a freeway multilane free flow system, which is applied to the technical field of intelligent traffic and has the technical scheme that: the method comprises a vehicle-mounted electronic tag, an electronic tag read-write antenna, a vehicle detection system, an image snapshot system, lane coordination equipment and a terminal, and comprises the following steps: step 1, when a vehicle passes through a portal frame, a vehicle detection system adopts laser raster scanning to obtain the overall dimension of the vehicle, and then the vehicle type is judged as the payment amount; has the technical effects that: the multiple antennas cover multiple lanes, so that mutual interference of signals between adjacent antennas is avoided, the multiple antennas are synchronized, and a control center coordinates the switch time slots of the antennas to eliminate adjacent lane interference.
Description
Technical Field
The invention belongs to the technical field of intelligent traffic, and particularly relates to a working method of a multi-lane free flow system of a highway.
Background
The ETC (electronic toll collection) system changes the traditional manual toll collection mode, so that the vehicle can finish the payment process without stopping when passing through a toll station of a highway, a bridge or a tunnel, the utilization rate of the road is greatly improved, the passing speed of the vehicle is improved, the traffic jam is reduced, and the carbon emission is reduced to a certain extent. Meanwhile, the manual requirement of the toll station is reduced, and the operation cost of the toll lane is reduced. The non-stop charging mode is adopted by more and more countries and cities.
With the development of economy, the problem of traffic congestion caused by the rapid growth of urban vehicles is becoming more serious. The traditional ETC adopts a single lane, one vehicle and one rod, the passing speed of the vehicle is difficult to exceed 40km/h, and lane equipment occupies a larger area of a road surface and is not suitable for tunnels, bridges or toll intersections with limited width.
And lane railings are not arranged in a multi-lane free flow charging mode, and the multiple lanes are not isolated, so that the vehicle passing speed is further improved, and a toll station is not a barrier for road congestion. Meanwhile, the cost of lane infrastructure and the occupied area of a road surface are reduced, and the method is especially important for road and bridge charging and tunnel charging. In addition, in some countries with serious urban congestion, a multi-lane free flow charging mode is adopted to carry out congestion charging, vehicles entering a congested road section are subjected to floating charging according to time periods, the number of the vehicles is limited, and congestion conditions are relieved.
The charging mode of the multi-lane free flow is concerned by many countries and cities, and is an important development direction in the field of intelligent transportation in the future.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a working method of a multi-lane free flow system of an expressway, aiming at the defects in the prior art, and the working method has the advantages that: the single RSU antenna can be communicated with a plurality of OBUs at the same time, time slices are fully utilized, a multi-task and multi-thread processing mode is adopted, and the waiting time of the RSU and the OBUs is shortened.
The technical scheme is as follows: in order to achieve the purpose, the invention provides a working method of a multi-lane free flow system of a highway, wherein the multi-lane free flow system of the highway comprises a vehicle-mounted electronic tag, an electronic tag read-write antenna, a vehicle detection system, an image snapshot system, lane coordination equipment and a terminal, and the working method comprises the following specific working steps:
step 1, when the vehicle passes through a portal frame, the vehicle detection system adopts laser raster scanning to obtain the overall dimension of the vehicle, and then the vehicle type is judged as the payment amount;
step 2, positioning the vehicle-mounted electronic tag by receiving the radio frequency signal transmitted by the vehicle-mounted electronic tag, comparing the vehicle-mounted electronic tag with the vehicle type recorded by the vehicle detection system, and sending violation information to a terminal for processing if the vehicle-mounted electronic tag is inconsistent with the vehicle type recorded by the vehicle detection system;
step 3, after the vehicle enters the coverage area of the electronic tag read-write antenna, the vehicle-mounted electronic tag is activated to perform authentication communication connection with the electronic tag read-write antenna, when the electronic tag read-write antenna confirms that the vehicle-mounted electronic tag is legal, the MAC number of the vehicle-mounted electronic tag is sent to a terminal, and the terminal finishes fee deduction and generates a transaction serial number;
and 4, the image snapshot recognition system takes a snapshot of a vehicle photo, carries out license plate recognition on the image, automatically generates a serial number at the same time of the snapshot image, matches the serial number with the transaction serial number, automatically transfers the serial number to the terminal for storing data, and if the serial number does not correspond to the transaction serial number, the terminal judges that the vehicle does not violate the rules and serves as a basis for expense investigation.
The invention further improves the technical scheme that the electronic tag read-write antenna comprises a main control computer, a transmitting unit and a plurality of receiving units, wherein the transmitting unit is used for modulating transaction data to microwave for transmitting after specific coding, the receiving unit is used for receiving microwave signals of the vehicle-mounted electronic tag, demodulating, decoding and analyzing the microwave signals and transmitting useful data information to the transmitting unit, and the main control computer is used for connecting an antenna end and lane coordination equipment and supplying power to the antenna end.
As a further improvement of the invention, the transmitting unit is connected with all receiving units through a bus, when the receiving units receive signals and correctly analyze the signals, the transmitting unit sends interrupt signals to the bus, detects the interrupt signals on the bus, inquires data buffer areas of all the receiving units and obtains the received data.
As a further improvement of the invention, the transmitting unit is connected through RS485, and the main control computer is in communication connection with the lane coordination equipment through an RS232 serial port and an LAN interface.
As a further improvement of the invention, the transmitting unit comprises a microwave transmitting module, an MCU and a PASM controller, the microwave transmitting module modulates the transaction data to be transmitted onto a carrier wave and transmits the transaction data to the vehicle-mounted electronic tag through a microwave antenna, the MCU is used for organizing a physical layer, a link layer and an application layer data of a transaction process, a plurality of received data information are acquired through a high-speed 485 bus, and the PASM controller can realize high-speed communication through a built-in PASM card slot.
As a further improvement of the invention, the receiving unit comprises a microwave receiving module and an MCU, and the microwave receiving module receives the microwave signal of the vehicle-mounted electronic tag, demodulates the microwave signal and then sends the demodulated microwave signal to the MCU for processing.
As a further improvement of the invention, the main control computer comprises an ARM processor, a PSAM card reader and an AC/DC power supply system, wherein the ARM processor is used for a data transmission interface between an antenna end and lane coordination equipment, the PSAM card reader reads and writes data through a built-in card reader module, and the AC/DC power supply converts a 220V alternating current power supply into a 24V direct current power supply and distributes the power supply to the whole system.
The working method of the freeway multilane free flow system of the invention has the following beneficial effects:
1. the transaction process is simplified, under the condition that the transaction is safe and reliable, data interaction between the RSU and the OBU is reduced as much as possible, the processing speed of each module and the data transmission time between the modules are optimized, the time for completing the transaction by a single OBU is controlled to be 20 ms-30 ms, a single RSU antenna can be in communication transaction with a plurality of OBUs at the same time, time slices are fully utilized, a multi-task and multi-thread processing mode is adopted, and the waiting time of the RSU and the OBU is reduced;
2. the multiple antennas cover multiple lanes, mutual signal interference between adjacent antennas is avoided, the multiple antennas are synchronized, a control center coordinates the switch time slot of each antenna to eliminate adjacent lane interference, the OBU is positioned by receiving microwave signals transmitted by the OBU, the physical position of the OBU in a communication area is determined, and the inspection of vehicles against regulations is completed by matching with systems such as vehicle position tracking and the like.
Drawings
Fig. 1 is a schematic view of the overall flow structure of the present embodiment.
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b): the working method of the freeflow system of the expressway multilane, as shown in figure 1, comprises a vehicle-mounted electronic tag, an electronic tag reading and writing antenna, a vehicle detection system, an image snapshot system, lane coordination equipment and a terminal, and comprises the following steps:
step 1, when the vehicle passes through a portal frame, the vehicle detection system adopts laser raster scanning to obtain the overall dimension of the vehicle, and then the vehicle type is judged as the payment amount;
step 2, positioning the vehicle-mounted electronic tag by receiving the radio frequency signal transmitted by the vehicle-mounted electronic tag, comparing the vehicle-mounted electronic tag with the vehicle type recorded by the vehicle detection system, and sending violation information to a terminal for processing if the vehicle-mounted electronic tag is inconsistent with the vehicle type recorded by the vehicle detection system;
step 3, after the vehicle enters the coverage area of the electronic tag read-write antenna, the vehicle-mounted electronic tag is activated to perform authentication communication connection with the electronic tag read-write antenna, when the electronic tag read-write antenna confirms that the vehicle-mounted electronic tag is legal, the MAC number of the vehicle-mounted electronic tag is sent to a terminal, and the terminal finishes fee deduction and generates a transaction serial number;
and 4, the image snapshot recognition system takes a snapshot of a vehicle photo, carries out license plate recognition on the image, automatically generates a serial number at the same time of the snapshot image, matches the serial number with the transaction serial number, automatically transfers the serial number to the terminal for storing data, and if the serial number does not correspond to the transaction serial number, the terminal judges that the vehicle does not violate the rules and serves as a basis for expense investigation.
As shown in fig. 1, the electronic tag read-write antenna includes a main control computer, a transmitting unit and a plurality of receiving units, the transmitting unit is configured to modulate transaction data to microwave for transmission after specific coding, the receiving unit is configured to receive a microwave signal of the vehicle-mounted electronic tag, demodulate, decode and analyze the microwave signal, and send useful data information to the transmitting unit, and the main control computer is configured to connect an antenna end and a lane coordination device, and supply power to the antenna end.
As shown in fig. 1, the transmitting unit is connected to all receiving units through a bus, and when the receiving units receive and correctly analyze signals, the transmitting unit sends an interrupt signal to the bus, and the transmitting unit detects that the interrupt signal appears on the bus, queries data buffers of all the receiving units, and obtains received data.
As shown in fig. 1, the transmitting units are connected through RS485, and the main control computer is in communication connection with the lane coordination device through an RS232 serial port and an LAN interface.
As shown in fig. 1, the transmitting unit includes a microwave transmitting module, an MCU and a PASM controller, the microwave transmitting module modulates transaction data to be transmitted onto a carrier wave, and transmits the transaction data to the vehicle-mounted electronic tag through a microwave antenna, the MCU is used for organizing a physical layer, a link layer and an application layer of a transaction process, and acquires a plurality of received data information through a high-speed 485 bus, and the PASM controller can realize high-speed communication through a built-in PASM slot.
As shown in fig. 1, the receiving unit includes a microwave receiving module and an MCU, and the microwave receiving module receives and demodulates a microwave signal of the vehicle-mounted electronic tag and then transmits the demodulated microwave signal to the MCU for processing.
As shown in fig. 1, the main control computer includes an ARM processor, a PSAM card reader, and an AC/DC power supply system, the ARM processor is used for a data transmission interface between an antenna end and a lane coordinating device, the PSAM card reader reads and writes data through a built-in card reader module, and the AC/DC power supply converts a 220V alternating current power supply into a 24V direct current power supply and distributes the power supply to the whole system. .
Has the advantages that: the transaction process is simplified, under the condition of meeting the requirements of safe and reliable transaction, data interaction between the RSU and the OBU is reduced as much as possible, the processing speed of each module and the data transmission time between the modules are optimized, the transaction completion time of a single OBU is controlled to be 20 ms-30 ms, a single RSU antenna can be in communication transaction with a plurality of OBUs at the same time, a time slice is fully utilized, a multi-task and multi-thread processing mode is adopted, the waiting time of the RSU and the OBU is reduced, the multi-antenna covers a plurality of lanes, mutual interference of signals between adjacent antennas is avoided, the plurality of antennas are synchronized, a control center coordinates the switching time slot of each antenna to eliminate the interference of the adjacent lanes, the OBU is positioned by receiving microwave signals transmitted by the OBU, the physical position of the OBU in a communication area is determined, and the inspection of illegal vehicles is completed by matching with systems such as vehicle position tracking and.
The electrical components that appear in this application all external intercommunication power when using.
It is well within the skill of those in the art to implement and protect the circuit and electrical components and modules without undue experimentation and without undue experimentation that the present invention is not directed to software improvements.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features.
Claims (7)
1. The working method of the freeflow system of the multi-lane of the highway is characterized in that the freeflow system of the multi-lane of the highway comprises a vehicle-mounted electronic tag, an electronic tag reading and writing antenna, a vehicle detection system, an image capturing system, lane coordination equipment and a terminal, and the working method comprises the following specific working steps:
step 1, when the vehicle passes through a portal frame, the vehicle detection system adopts laser raster scanning to obtain the overall dimension of the vehicle, and then the vehicle type is judged as the payment amount;
step 2, positioning the vehicle-mounted electronic tag by receiving the radio frequency signal transmitted by the vehicle-mounted electronic tag, comparing the vehicle-mounted electronic tag with the vehicle type recorded by the vehicle detection system, and sending violation information to a terminal for processing if the vehicle-mounted electronic tag is inconsistent with the vehicle type recorded by the vehicle detection system;
step 3, after the vehicle enters the coverage area of the electronic tag read-write antenna, the vehicle-mounted electronic tag is activated to perform authentication communication connection with the electronic tag read-write antenna, when the electronic tag read-write antenna confirms that the vehicle-mounted electronic tag is legal, the MAC number of the vehicle-mounted electronic tag is sent to a terminal, and the terminal finishes fee deduction and generates a transaction serial number;
and 4, the image snapshot recognition system takes a snapshot of a vehicle photo, carries out license plate recognition on the image, automatically generates a serial number at the same time of the snapshot image, matches the serial number with the transaction serial number, automatically transfers the serial number to the terminal for storing data, and if the serial number does not correspond to the transaction serial number, the terminal judges that the vehicle does not violate the rules and serves as a basis for expense investigation.
2. The method of operation of a freeway multi-lane freeflow system according to claim 1, characterized in that: the electronic tag reading and writing antenna comprises a main control computer, a transmitting unit and a plurality of receiving units, wherein the transmitting unit is used for modulating transaction data to microwave after specific coding and transmitting the transaction data, the receiving unit is used for receiving microwave signals of the vehicle-mounted electronic tag, demodulating, decoding and analyzing the microwave signals and transmitting useful data information to the transmitting unit, and the main control computer is used for connecting an antenna end and lane coordination equipment and supplying power to the antenna end.
3. The method of operating a freeway multi-lane free flow system according to claim 2, characterized in that: the transmitting unit is connected with all the receiving units through a bus, when the receiving units receive signals and correctly analyze the signals, the transmitting unit sends interrupt signals to the bus, detects the interrupt signals on the bus, inquires all the data buffer areas of the receiving units, and obtains received data.
4. The method of operating a freeway multi-lane free flow system according to claim 2, characterized in that: the transmitting unit is connected through RS485, and the main control computer is in communication connection with the lane coordination equipment through an RS232 serial port and an LAN interface.
5. The method of operating a freeway multi-lane free flow system according to claim 2, characterized in that: the transmitting unit comprises a microwave transmitting module, an MCU and a PASM controller, the microwave transmitting module modulates transaction data to be transmitted onto a carrier wave and transmits the transaction data to the vehicle-mounted electronic tag through a microwave antenna, the MCU is used for organizing a physical layer, a link layer and an application layer data of a transaction process, a plurality of received data information are acquired through a high-speed 485 bus, and the PASM controller can realize high-speed communication through a built-in PASM clamping groove.
6. The method of operating a freeway multi-lane free flow system according to claim 2, characterized in that: the receiving unit comprises a microwave receiving module and an MCU, and the microwave receiving module receives the microwave signal of the vehicle-mounted electronic tag, demodulates the microwave signal and then sends the microwave signal to the MCU for processing.
7. The method of operating a freeway multi-lane free flow system according to claim 2, characterized in that: the main control computer comprises an ARM processor, a PSAM card reader and an AC/DC power supply system, wherein the ARM processor is used for a data transmission interface between an antenna end and lane coordination equipment, the PSAM card reader reads and writes data through a built-in card reader module, and the AC/DC power supply converts a 220V alternating current power supply into a 24V direct current power supply and distributes the power supply to the whole system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911028477.XA CN110853162A (en) | 2019-10-28 | 2019-10-28 | Working method of freeflow system for multiple lanes of highway |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911028477.XA CN110853162A (en) | 2019-10-28 | 2019-10-28 | Working method of freeflow system for multiple lanes of highway |
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| CN110853162A true CN110853162A (en) | 2020-02-28 |
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| CN201911028477.XA Pending CN110853162A (en) | 2019-10-28 | 2019-10-28 | Working method of freeflow system for multiple lanes of highway |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562344A (en) * | 2020-11-26 | 2021-03-26 | 东南大学 | Highway multilane free flow signal anti-interference method and device |
| CN114202817A (en) * | 2021-11-30 | 2022-03-18 | 广州市凌特电子有限公司 | ETC radio environment monitoring guarantee method, system, equipment and medium |
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| CN202120331U (en) * | 2010-06-17 | 2012-01-18 | 北京万集科技股份有限公司 | Road measuring device and charging system without parking |
| CN102622783A (en) * | 2012-03-29 | 2012-08-01 | 北京速通科技有限公司 | Multilane free-flow electronic toll collection method based on accurate position match |
| CN102929822A (en) * | 2012-08-13 | 2013-02-13 | 深圳市金溢科技有限公司 | Method, equipment and system for implementing parallel calculation of purchase secure access module (PSAM) card |
| CN202975316U (en) * | 2012-12-24 | 2013-06-05 | 北京握奇数据系统有限公司 | Device carrying out positioning by using passive multi-beam antenna |
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2019
- 2019-10-28 CN CN201911028477.XA patent/CN110853162A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202120331U (en) * | 2010-06-17 | 2012-01-18 | 北京万集科技股份有限公司 | Road measuring device and charging system without parking |
| CN102622783A (en) * | 2012-03-29 | 2012-08-01 | 北京速通科技有限公司 | Multilane free-flow electronic toll collection method based on accurate position match |
| CN102929822A (en) * | 2012-08-13 | 2013-02-13 | 深圳市金溢科技有限公司 | Method, equipment and system for implementing parallel calculation of purchase secure access module (PSAM) card |
| CN202975316U (en) * | 2012-12-24 | 2013-06-05 | 北京握奇数据系统有限公司 | Device carrying out positioning by using passive multi-beam antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112562344A (en) * | 2020-11-26 | 2021-03-26 | 东南大学 | Highway multilane free flow signal anti-interference method and device |
| CN114202817A (en) * | 2021-11-30 | 2022-03-18 | 广州市凌特电子有限公司 | ETC radio environment monitoring guarantee method, system, equipment and medium |
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