Highway digital currency charging method

Abstract

The invention provides a highway digital currency toll collection method, and relates to the technical field of highway toll collection methods, and the method comprises the following steps: 1, carrying out the multi-sensor fusion of a millimeter wave radar and a multispectral camera, deploying the sensors in front of a toll station, and generating a vehicle digital twinborn body containing the speed, the vehicle type and a three-dimensional track; 2, adopting a dual authentication mechanism with deep learning license plate recognition as a main part and NFC near field communication as an auxiliary part; 3, calling an intelligent contract to execute path fitting charging based on a real-time rate table stored in the block chain; 4, supporting dual modes of online digital RMB code scanning payment and OBU offline signature payment; 5, T + 0 real-time clearing settlement is realized through a cross-chain relay technology; according to the invention, dual modes of on-line digital RMB code scanning payment and OBU off-line signature payment are supported, so that the problem of insufficient system compatibility of a current charging system in the aspect of supporting novel payment modes such as digital currency and the like is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of highway toll collection methods, and particularly to a digital currency toll collection method for expressways. Background Art

[0002] In the field of highway toll collection, with the development of technology and the diversification of payment methods, traditional cash payment and bank card payment can no longer meet the needs of rapid development;

[0003] At present, digital currency, as a new payment method, is gradually entering people's daily lives. However, the current toll collection system has obvious problems of insufficient system compatibility in supporting new payment methods such as digital currency, which causes many users to encounter difficulties when trying to use these new payment means;

[0004] The current expressway toll collection system also has certain limitations in data processing. Due to data isolation between toll collection systems in different regions (this data isolation also causes the average time-consuming for cross-provincial toll evasion inspection to be 7 working days), the so-called "data island" phenomenon occurs, which not only affects the coordination and cooperation between provinces, but also makes it difficult to achieve rapid linkage in case of emergencies, affecting the service efficiency of the entire expressway network;

[0005] In addition, although the traditional ETC (Electronic Toll Collection system) has played an important role in improving traffic efficiency, its recognition error rate is relatively high, about between 1% and 3%. Although this may seem not high, in the face of millions of vehicle flows every day, these errors will still have a certain impact on traffic efficiency;

[0006] Therefore, we propose a digital currency toll collection method for expressways. Summary of the Invention

[0007] The purpose of the present invention is to solve the shortcomings existing in the prior art, and propose a new toll collection technology that is compatible with digital currency payment methods, improves the emergency response speed, reduces the recognition error rate, and improves the traffic smoothness.

[0008] To achieve the above purpose, the present invention adopts the following technical solutions: A digital currency toll collection method for expressways, including the following steps:

[0009] Step 1: Through the multi-sensor fusion of millimeter-wave radar and multi-spectral camera, the sensor is deployed in front of the toll station to generate a vehicle digital twin containing speed, vehicle type, and three-dimensional trajectory;

[0010] Step 2: Adopt a dual authentication mechanism mainly based on deep learning license plate recognition and supplemented by NFC near-field communication;

[0011] Step 3: Based on the real-time rate table stored on the blockchain, call the smart contract to execute path fitting and billing;

[0012] Step 4: Support dual modes of online digital RMB QR code payment and OBU offline signature payment;

[0013] Step 5: Achieve T+0 real-time clearing and settlement through cross-chain relay technology.

[0014] Preferably, the specific steps of Step 1 include:

[0015] 1.1 Deploy a millimeter-wave radar with an operating frequency of 77 GHz, a detection range of 30m - 100m, and a horizontal viewing angle of ±45°;

[0016] 1.2 Use a 4K camera with a frame rate ≥ 60fps to collect multi-angle video streams;

[0017] 1.3 Run the improved YOLOv5 algorithm and embed the CBAM attention mechanism module in the model;

[0018] 1.4 Through the Kalman filter algorithm, fuse the radar point cloud and visual data, with the time stamp synchronization error between radar and visual data < 1ms, to generate the vehicle movement trajectory.

[0019] Preferably, the dual authentication mechanism in Step 2 includes:

[0020] 2.1 The main authentication uses a license plate recognition model optimized by ResNet-34, maintaining a recognition rate of 99% under the condition of light intensity of 50 - 100 klux;

[0021] 2.2 The secondary authentication uses 13.56 MHz NFC communication compliant with ISO14443 Type A standard;

[0022] 2.3 When the recognition fails continuously for 3 - 5 times, automatically trigger the manual review process based on the 5G network;

[0023] Based on 2.3, add a timeout mechanism: The manual review needs to respond within 30 seconds, otherwise it will be automatically released and marked as abnormal.

[0024] Preferably, the intelligent billing in Step 3 includes:

[0025] 3.1 The entrance / exit coordinates are obtained by the Beidou-3 positioning system, with an error range < 1 meter;

[0026] 3.2 The path fitting uses the improved Dijkstra algorithm, reducing the time from 200ms of the traditional algorithm to 50ms, and optimizing the weight parameters by integrating historical traffic flow data;

[0027] 3.3 The billing smart contract contains a version control field, supporting dynamic update of the rate table.

[0028] Preferably, the dual - mode payment in step four includes:

[0029] 4.1 In the online payment mode, a three - element dynamic QR code containing the lane number, timestamp, and amount is generated, with a validity period of 55 seconds - 65 seconds;

[0030] 4.2 In the offline payment mode, the SM2 algorithm is used to generate a transaction signature, and the encrypted data packet is stored locally

[0031] 4.3 After the network is restored, the integrity of the offline transaction is verified through the Merkle tree, and the verification time for a single transaction is < 100ms.

[0032] Preferably, the clearing and settlement in step five includes:

[0033] 5.1 Deploy provincial - level blockchain nodes based on PBFT consensus, with a throughput of ≥ 3000 TPS;

[0034] 5.2 Cross - provincial settlement is completed through the relay chain atomic swap protocol, with a delay of < 10 minutes;

[0035] 5.3 The fund transfer is automatically executed by the smart contract of the digital RMB corporate wallet.

[0036] Preferably, in step five: when cross - chain fails, start the local emergency clearing channel.

[0037] Preferably, the steps further include:

[0038] Step six: Automatically push e - invoices and provide itinerary derivative services.

[0039] Preferably, the service extension in step six includes:

[0040] 6.1 The e - invoice data complies with the VAT e - invoice specification of the State Taxation Administration;

[0041] 6.2 The itinerary recommendation service uses the collaborative filtering algorithm based on the user's historical data;

[0042] 6.3 The triggering conditions for abnormal transactions include: payment timeout > 30 seconds or amount deviation > 5%.

[0043] Compared with the prior art, the beneficial effects of the present invention are:

[0044] First, by supporting the dual - mode of online digital RMB QR code payment and OBU offline signature payment, the present invention effectively solves the problem of insufficient system compatibility in the current toll collection system for supporting new payment methods such as digital currency, enabling users to use digital currency for payment more conveniently and improving the convenience and flexibility of payment.

[0045] Second, the present invention stores the real-time rate table through blockchain technology, invokes smart contracts to execute path fitting billing, and uses cross-chain relay technology to achieve T+0 real-time clearing and settlement. This series of technical means breaks the data isolation between regional charging systems, realizes data sharing and coordination, which not only helps to improve the coordination and cooperation ability between provinces, but also enables rapid linkage in emergency situations, improving the service efficiency of the entire highway network.

[0046] Third, the present invention adopts a dual authentication mechanism mainly based on deep learning license plate recognition and supplemented by NFC near-field communication, effectively improving the accuracy of license plate recognition. Especially in the main authentication, a license plate recognition model optimized by ResNet-34 is adopted, maintaining a 99% recognition rate under the condition of light intensity of 50-100 klux, significantly reducing the recognition error rate, which helps to reduce the traffic delays caused by recognition errors and improve the traffic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a flowchart of a digital currency toll collection method for highways provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0049] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant. Several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0050] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the description of this invention herein are only for the purpose of describing specific embodiments and are not intended to limit the invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0052] Embodiment

[0053] As Figure 1 shown, the present invention provides a technical solution: a method for toll collection of digital currency on expressways, including the following steps:

[0054] Step 1: Multi-sensor fusion to generate a vehicle digital twin: Through multi-sensor fusion of millimeter-wave radar and multi-spectral cameras, the sensors are deployed in front of the toll station to generate a vehicle digital twin containing speed, vehicle type, and three-dimensional trajectory.

[0055] Step 1 specifically includes:

[0056] Deployment of millimeter-wave radar: Deploy a millimeter-wave radar with an operating frequency of 77 GHz, a detection distance of 30 m - 100 m, and a horizontal viewing angle of ±45° to obtain the speed and position information of the vehicle.

[0057] 4K camera video stream acquisition: Use a 4K camera with a frame rate ≥ 60 fps to collect multi-angle video streams to provide visual data for vehicle recognition and trajectory tracking.

[0058] Improve the YOLOv5 algorithm and CBAM attention mechanism: Run the improved YOLOv5 algorithm and embed the CBAM attention mechanism module in the model to improve the accuracy and efficiency of vehicle detection.

[0059] Data fusion of Kalman filter algorithm: Fusion of radar point cloud and visual data through the Kalman filter algorithm, with a time stamp synchronization error of < 1 ms between radar and visual data, to generate the vehicle motion trajectory.

[0060] Step 2: Dual authentication mechanism: Adopt a dual authentication mechanism mainly based on deep learning license plate recognition and supplemented by NFC near-field communication.

[0061] Among them, the dual authentication mechanism is specifically:

[0062] Primary authentication: Adopt a license plate recognition model optimized by ResNet-34 to maintain a recognition rate of 99% under the condition of light intensity of 50 - 100 klux to ensure the accuracy of license plate recognition.

[0063] Secondary authentication: Adopt 13.56 MHz NFC communication compliant with ISO14443 Type A standard as an auxiliary means for license plate recognition.

[0064] When the recognition fails continuously for 3 to 5 times through the above authentication mechanism, the manual review process based on the 5G network is automatically triggered. The manual review needs to respond within 30 seconds, otherwise it will be automatically released and marked as abnormal.

[0065] Step 3. Intelligent billing: Based on the real-time rate table stored on the blockchain, call the intelligent contract execution path to simulate and calculate the fee;

[0066] Among them, the detailed description of intelligent billing:

[0067] 1) The entrance / exit coordinates are obtained by using the Beidou-3 positioning system, with an error range < 1 meter to ensure the accuracy of the billing path;

[0068] 2) The path fitting uses the improved Dijkstra algorithm, which is reduced from 200 ms of the traditional algorithm to 50 ms, and the weight parameters are optimized by integrating historical traffic flow data;

[0069] 3) The billing intelligent contract contains a version control field, supports dynamic update of the rate table, and ensures the flexibility and accuracy of billing.

[0070] Step 4. Dual-mode payment: Support dual modes of online digital RMB QR code payment and OBU offline signature payment;

[0071] Among them, the dual-mode payment in Step 4 includes:

[0072] 1) Online payment mode. The online payment mode generates a three-element dynamic QR code containing the lane number, timestamp, and amount, with a validity period of 55 seconds - 65 seconds;

[0073] 2) Offline payment mode. The offline payment mode uses the SM2 algorithm to generate a transaction signature, and locally stores the encrypted data packet to ensure the security of offline payment;

[0074] For the transaction integrity verification of the offline payment mode, after the network is restored, the Merkle tree is used to verify the integrity of the offline transaction. The verification time for a single transaction < 100 ms to ensure the reliability of the offline transaction.

[0075] Step 5. Clearing and settlement and emergency handling: Realize T+0 real-time clearing and settlement through cross-chain relay technology, and start the local emergency clearing channel when the cross-chain fails.

[0076] Among them, the clearing and settlement in Step 5 includes:

[0077] Deployment of provincial blockchain nodes. Deploy provincial blockchain nodes based on PBFT consensus. To ensure the efficiency of clearing and settlement, the throughput ≥ 3000 TPS;

[0078] Cross-provincial settlement and relay chain atomic swap. The cross-provincial settlement is completed through the relay chain atomic swap protocol. To ensure the timeliness of cross-provincial settlement, the delay is < 10 minutes;

[0079] Execution of the fund transfer smart contract. The fund transfer is automatically executed by the smart contract of the corporate digital RMB wallet.

[0080] Step 6: Electronic invoice and itinerary derivative services: Automatically push electronic invoices and provide itinerary derivative services.

[0081] Among them, the service extensions in Step 6 include the following:

[0082] 1) The electronic invoice data complies with the specifications of the Value-Added Tax Electronic Invoice of the State Taxation Administration and is used for user reimbursement and archiving;

[0083] 2) The itinerary recommendation service uses the collaborative filtering algorithm based on the user's historical data;

[0084] 3) Abnormal transaction triggering conditions: Set payment timeout > 30 seconds or amount deviation > 5% as the abnormal transaction triggering conditions to detect and handle abnormal transactions in a timely manner.

[0085] Based on the above embodiments, the working process of the present invention:

[0086] The vehicle enters the area in front of the toll station: The millimeter-wave radar and the multi-spectral camera start to work, generating a digital twin of the vehicle;

[0087] The dual authentication mechanism is activated: First, license plate recognition is performed. If it fails, NFC near-field communication-assisted authentication is activated. If it fails continuously, the manual review process is triggered;

[0088] Intelligent billing: According to the digital twin of the vehicle and the entrance / exit coordinates, call the smart contract to execute path planning and billing;

[0089] Dual-mode payment: The user selects the online or offline payment mode to complete the payment;

[0090] Clearing and settlement: Through cross-chain relay technology, T+0 real-time clearing and settlement is achieved. If the cross-chain fails, the local emergency clearing channel is activated;

[0091] Electronic invoice and itinerary derivative services: Automatically push electronic invoices, provide itinerary recommendation services based on the user's historical data, and monitor and handle abnormal transactions in a timely manner.

[0092] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital currency toll collection method for expressways, characterized in that, It includes the following steps: Step 1: Through the multi-sensor fusion of millimeter-wave radar and multi-spectral camera, the sensors are deployed in front of the toll station to generate a vehicle digital twin containing speed, vehicle type, and 3D trajectory; Step 2: Adopt a dual authentication mechanism mainly based on deep learning license plate recognition and supplemented by NFC near-field communication; Step 3: Based on the real-time rate table stored on the blockchain, call the smart contract to execute path fitting and billing; Step 4: Support dual modes of online digital RMB QR code payment and OBU offline signature payment; Step 5: Achieve T+0 real-time clearing and settlement through cross-chain relay technology.

2. The method for charging digital currency on expressways according to claim 1, characterized in that, The specific content of Step 1 includes: 1.1 Deploy a millimeter-wave radar with a working frequency of 77 GHz, a detection distance of 30m - 100m, and a horizontal viewing angle of ±45°; 1.2 Use a 4K camera with a frame rate ≥ 60fps to collect multi-angle video streams; 1.3 Run the improved YOLOv5 algorithm and embed the CBAM attention mechanism module in the model; 1.4 Through the Kalman filter algorithm, fuse the radar point cloud and visual data, with the time stamp synchronization error between the radar and visual data < 1ms, to generate the vehicle movement trajectory.

3. The method for charging highway digital currency according to claim 1, wherein The dual authentication mechanism in Step 2 includes: 2.1 The main authentication uses a license plate recognition model optimized by ResNet-34, maintaining a recognition rate of 99% under the condition of light intensity of 50 - 100 klux; 2.2 The auxiliary authentication uses 13.56 MHz NFC communication compliant with the ISO14443 Type A standard; 2.3 When the recognition fails continuously for 3 - 5 times, automatically trigger the manual review process based on the 5G network; Based on 2.3, add a timeout mechanism: the manual review needs to respond within 30 seconds, otherwise it will be automatically released and marked as abnormal.

4. A method for charging digital currency on expressways according to claim 1, characterized in that, The intelligent billing in Step 3 includes: 3.1 The entrance / exit coordinates are obtained by the Beidou-3 positioning system, with an error range < 1 meter; 3.2 The path fitting uses the improved Dijkstra algorithm, reducing from 200ms of the traditional algorithm to 50ms, and optimizing the weight parameters by integrating historical traffic flow data; 3.3 The billing smart contract contains a version control field, supporting dynamic update of the rate table.

5. A method for toll collection of digital currency on expressways according to claim 1, characterized in that, The dual-mode payment in Step 4 includes: 4.1 In the online payment mode, generate a three-element dynamic QR code containing lane number, time stamp, and amount, with a validity period of 55 seconds - 65 seconds; 4.2 In the offline payment mode, use the SM2 algorithm to generate a transaction signature and locally store the encrypted data packet 4.3 After the network is restored, verify the integrity of the offline transaction through the Merkle tree, with the verification time for a single transaction < 100ms.

6. The method for toll collection of digital currency on expressways according to claim 1, characterized in that, The clearing and settlement in Step 5 includes: 5.1 Deploy provincial blockchain nodes based on PBFT consensus, with a throughput ≥ 3000 TPS; 5.2 Cross-provincial settlement is completed through the relay chain atomic exchange protocol, with a delay < 10 minutes; 5.3 The fund transfer is automatically executed by the smart contract of the digital RMB corporate wallet.

7. A method for toll collection of digital currency on expressways according to claim 1, characterized in that, Step 5: When the cross-chain fails, start the local emergency clearing channel.

8. A method for toll collection of digital currency on expressways according to claim 1, characterized in that The steps also include: Step 6: Automatically push e-invoices and provide itinerary derivative services.

9. The method for toll collection of digital currency on expressways according to claim 8, wherein, The service extension in Step 6 includes: 6.1 The e-invoice data complies with the national tax administration's VAT e-invoice specification; 6.2 The itinerary recommendation service uses a collaborative filtering algorithm based on the user's historical data; 6.3 The triggering conditions for abnormal transactions include: payment timeout > 30 seconds or amount deviation > 5%.

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