Electronic paper ticket management method and system for ETC (Electronic Toll Collection)
By introducing network connection between lane software and the e-paper voucher management backend in the ETC system, using Redis and MySQL for data query and synchronization, the problem of insufficient information management in the traditional e-paper voucher management method is solved, and the passage efficiency of toll stations and the real-time management of paper voucher resources is improved.
Patent Information
- Application Number
- CN202510249172.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2025-04-22
AI Technical Summary
The electronic paper voucher management method used in traditional ETC lacks effective information management methods and cannot manage the use of paper vouchers in real time, resulting in inefficient access to toll stations.
A method of e-paper voucher management for ETC is adopted, and the network connection between the e-paper voucher management backend is connected through lane software, and basic information query and data synchronization is used to manage paper voucher resource availability in real time.
Comprehensive information management has been realized, the efficiency of passage has been improved, the real-time synchronous management of paper coupon resources has been ensured, and the number of paper coupons can be dispatched according to the actual passage status.
Smart Images
Figure CN119863242A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of electronic voucher management, and in particular to an electronic paper voucher management method and system for ETC. Background Art
[0002] During the peak period of holidays, the traffic volume on highways tends to increase significantly. At this time, in order to effectively control traffic flow and avoid congestion, toll stations are likely to take some special management measures. Among them, limited-number traffic is a common means, using electronic paper coupons to restrict the passage of some vehicles within a specific time period to relieve traffic pressure. The application of electronic paper coupons during holidays is mainly as a regulation and control tool. Through the electronic paper coupon system, toll stations can adjust in real time which vehicles can pass and which cannot, so as to respond more flexibly to sudden changes in traffic conditions. For example, when there is severe congestion in a lane in a certain direction, the management department can temporarily restrict the passage of some vehicles by issuing electronic paper coupons to alleviate congestion. In addition, electronic paper coupons are combined with the automatic recognition and rapid processing functions of the ETC system, making the implementation of the entire restriction measures more efficient and accurate. After receiving the electronic paper coupon, the car owner only needs to follow its instructions to pass the toll station within the specified time. The whole process does not require manual intervention, which greatly improves the traffic efficiency of the toll gate. Although limited-number traffic during peak holiday periods may cause inconvenience to some car owners, from the perspective of overall traffic management, this practice is necessary and effective. Through the application of technical means such as electronic paper coupons, traffic resources can be allocated more scientifically and reasonably to ensure the overall smoothness of road traffic.
[0003] At present, the traditional ETC electronic paper ticket management method requires advance printing and lacks effective information management methods, which greatly reduces the efficiency of toll station traffic. In addition, during actual use, the management center cannot understand the issuance and use of paper tickets in real time, and cannot dispatch the number of paper tickets for each station according to the actual traffic status. Summary of the invention
[0004] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides an electronic paper ticket management method and system for ETC, which has the advantages of high traffic efficiency through comprehensive information management and high availability of paper ticket resources through real-time synchronous management. It solves the problem that the traditional electronic paper ticket management method for ETC lacks effective information management means and cannot manage the usage of paper tickets in real-time synchronous manner.
[0005] (II) Technical solution To achieve the above object, the present invention provides the following technical solution: an electronic paper voucher management method for ETC, comprising the following steps: Step 1: Whenever a vehicle passes through the toll station entrance lane, the lane software connects to the electronic paper ticket management backend through the network to apply for the ticket section The electronic paper voucher management backend uses Redis and MySQL to query basic information and analyze the query results ; Step 2: The e-paper voucher management backend will query the results The query results are sent back to the Lane Software, which then Refuse to release the vehicle or issue an electronic paper ticket to release the vehicle; Step 3: When the Lane Software issues an e-paper ticket to release the vehicle, the Lane Software transmits the normal release notification of the e-paper ticket to the e-paper ticket management background, and the e-paper ticket management background writes the e-paper ticket information through Redis and MySQL ; Step 4: Whenever a vehicle passes through the toll station exit lane, the lane software uses the electronic paper ticket information Calculate time difference Then determine the usage status of the electronic paper coupon and charge accordingly according to the different usage status; Step 5: The lane software waits for the vehicle to complete the toll collection before releasing it, and transmits the paper coupon cancellation notification to the electronic paper coupon management backend, which writes the paper coupon cancellation information through Redis and MySQL; Step 6. Whenever the electronic paper voucher management background receives a normal release notification of the electronic paper voucher or a paper voucher cancellation notification, the electronic paper voucher management background recycles the remaining ticket segment data and synchronizes it to Redis and MySQL. If the electronic paper voucher management background does not receive a normal release notification of the electronic paper voucher or a paper voucher cancellation notification within one hour, the electronic paper voucher management background recycles the remaining ticket segment data every hour and synchronizes it to Redis and MySQL.
[0006] Preferably, in step 1, Redis is used for fast reading, writing and fast caching, and caches the work ticket segments in the form of key-value pairs. To the memory stick, the electronic paper ticket system background receives the work ticket segment After querying the application, connect to Redis to enable query, and then connect to MySQL to check the e-paper voucher information And cache it in the memory bank.
[0007] Preferably, in step 1, MySQL stores data in a table format to the hard disk, and the electronic paper ticket system background receives the work ticket segment After the query application, MySQL uses structured query language to query the electronic paper coupon information Composing query results , and sent back to the electronic paper voucher system backend.
[0008] Preferably, in step 2, the query result Contains information of multiple electronic paper coupons , and each electronic paper coupon information If the usage time is set, the query result of the ticket section will be There are no remaining tickets, the lane software refuses to release, and no electronic paper coupon is issued. If the toll station is working, the ticket section query result If there are remaining tickets, the lane software agrees to release the vehicle and issue an electronic paper ticket.
[0009] Preferably, in step 3, the electronic paper voucher information Including the hex of the toll station entrance, the lane number of the toll station entrance, the e-paper voucher number, the vehicle model, the license plate color, the license plate, the entry time of the vehicle and the use status of the e-paper voucher. The e-paper voucher management backend receives the notification of normal release of the e-paper voucher and writes the e-paper voucher information When the electronic paper coupon is used, the usage status is normal.
[0010] Preferably, in step 4, whenever a vehicle passes through the toll station exit lane, the lane software records the time when the vehicle passes through the exit lane and calculates the electronic paper voucher information. The time difference between the entry time of the released vehicle and the passing time of the vehicle in the exit lane If the time difference does not exceed the usage time, it means that the usage status of the electronic paper ticket has not timed out, and the lane software charges according to the basic price of the toll station. If the time difference exceeds the usage time, it means that the usage status of the electronic paper ticket has timed out, and the lane software charges according to the basic price of the toll station and the overtime price.
[0011] Preferably, in step 5, the electronic paper voucher management backend receives the paper voucher cancellation notification, and when writing the paper voucher cancellation information, the electronic paper voucher information is written. The usage status in is updated to usage completed.
[0012] An electronic paper ticket management system for ETC, including lane software and an electronic paper ticket management backend; The lane software is provided with a lane sensor, which is used to output a vehicle entry signal and a vehicle exit signal. When the lane sensor outputs a vehicle entry signal, the lane software connects to the electronic paper ticket management backend through the network to issue a work ticket segment. Query the application and wait for the query result to be sent back by the e-paper voucher management backend Then choose to refuse to release or release the vehicle with an electronic paper ticket. If the query result If there is a remaining ticket, the lane software agrees to release the vehicle, issues an electronic paper ticket, and transmits the normal release notification of the electronic paper ticket to the electronic paper ticket management background. When the lane sensor outputs the vehicle exit signal, the lane software calculates the time difference through the electronic paper ticket information. Then determine the usage status of the electronic paper coupon, charge the vehicle according to the corresponding price, wait for the vehicle to be released after payment is completed, and transmit the paper coupon cancellation notification to the electronic paper coupon management backend; The electronic paper ticket management background is provided with Redis and MySQL, and the electronic paper ticket management background receives the working ticket segment. When querying applications, connect to Redis to enable query, and then connect to MySQL to check the work ticket segment Electronic paper coupon information MySQL uses structured query language to query the electronic paper coupon information Composing query results , the electronic paper voucher system backend will query the results The electronic paper voucher information is sent back to the lane software. When the electronic paper voucher management background receives the normal release notification of the electronic paper voucher, it writes the electronic paper voucher information through Redis and MySQL. When the electronic paper voucher management background receives the paper voucher cancellation notification, the paper voucher cancellation information is written through Redis and MySQL. Whenever the electronic paper voucher management background receives the electronic paper voucher normal release notification or paper voucher cancellation notification, the electronic paper voucher management background updates the work ticket segment Remaining e-paper coupon information , and synchronized to Redis and MySQL. If the electronic paper voucher management backend does not receive the normal release notification of the electronic paper voucher or the paper voucher cancellation notification within one hour, the electronic paper voucher management backend will update the work ticket segment every hour. Remaining e-paper coupon information , and synchronize to Redis and MySQL.
[0013] Preferably, the query result The calculation formula is as follows:
[0014] In the formula, Indicates the query result. Indicates the toll booth is working Information about multiple electronic paper coupons in , Indicates querying the toll booth ticket section through MySQL Information about multiple electronic paper coupons .
[0015] Preferably, the time difference The calculation formula is as follows:
[0016] In the formula, Indicates the time difference, Indicates the vehicle entry time when the lane software normally issues electronic paper tickets. Indicates that the lane software records the time when vehicles pass through the exit lane. It represents the difference between the entry time of released vehicles and the passing time of vehicles in the exit lane, which is the actual usage time of the electronic paper coupon.
[0017] Compared with the prior art, the present invention provides an electronic paper voucher management method and system for ETC, which has the following beneficial effects: 1. The present invention is provided with a lane sensor through the lane software, and the lane sensor is used to output a vehicle entry signal and a vehicle exit signal. When the lane sensor outputs a vehicle entry signal, the lane software connects to the electronic paper ticket management backend through the network to issue a work ticket segment. Query application, wait for the electronic paper coupon management backend to query basic information through Redis and MySQL, the query content is specifically the number of electronic paper coupon numbers remaining in the working ticket section of the toll station, and return the query results Then choose to refuse to release or release the vehicle with an electronic paper ticket. If the query result If there are remaining tickets, the lane software agrees to release the vehicle, issues an electronic paper ticket, and transmits the normal release notification of the electronic paper ticket to the electronic paper ticket management background. When the lane sensor outputs the vehicle exit signal, the lane software calculates the time difference through the electronic paper ticket information. The usage status of the electronic paper voucher is then determined, and the vehicle is charged according to the corresponding price. The vehicle is released after payment is completed, and the paper voucher cancellation notification is transmitted to the electronic paper voucher management background. It is practical and recorded and stored, which is not easy to make mistakes. The comprehensive information management has high traffic efficiency.
[0018] 2. The present invention transmits the normal release notification of the electronic paper voucher or the paper voucher cancellation notification to the electronic paper voucher management background through the lane software. When the electronic paper voucher management background receives the normal release notification of the electronic paper voucher, it writes the electronic paper voucher information through Redis and MySQL. When the electronic paper voucher management background receives the paper voucher cancellation notification, it writes the paper voucher cancellation information through Redis and MySQL. Whenever the electronic paper voucher management background receives the normal release notification of the electronic paper voucher or the paper voucher cancellation notification, the electronic paper voucher management background updates the working ticket segment. Remaining e-paper coupon information , and synchronized to Redis and MySQL, practical sales and record storage, not easy to miss, if the electronic paper voucher management backend does not receive the normal release notification of the electronic paper voucher or the paper voucher cancellation notification within one hour, the electronic paper voucher management backend will update the work ticket segment every hour Remaining e-paper coupon information , and synchronized to Redis and MySQL. The frequency of data synchronization directly affects the degree of information sharing and collaboration, ensuring that the electronic paper ticket management background can receive real-time updated traffic information and real-time synchronous management of paper ticket resources with high availability. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a step diagram of the method of the present invention. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] Since the traditional ETC electronic paper ticket management method needs to be printed in advance, there is a lack of effective information management methods, which greatly reduces the efficiency of toll stations. In addition, during actual use, the management center cannot understand the issuance and use of paper tickets in real time, and cannot dispatch the number of paper tickets at each station according to the actual traffic status. Therefore, an ETC electronic paper ticket management method and system are proposed. Please refer to Figure 1 The electronic paper voucher management method comprises the following steps: Step 1: Whenever a vehicle passes through the toll station entrance lane, the lane software connects to the electronic paper ticket management backend through the network to apply for the ticket section , Reasonable planning and management of traffic flow during peak hours on highways can effectively reduce traffic congestion, increase vehicle speed, and ensure road safety and smoothness. The electronic paper ticket management background uses Redis and MySQL to query basic information. The query content is specifically the number of electronic paper ticket numbers remaining in the working ticket section of the toll station, and the query results are obtained through analysis. ; Redis is used for fast reading, writing and caching, and caches the work ticket segments in the form of key-value pairs The memory can cache rich data structures, such as strings, lists, hash tables, and sets. However, when the electronic paper ticket management backend server is shut down, the non-persistent data in the memory may be lost. Therefore, MySQL is also required to store data persistently. After querying the application, connect to Redis to enable query, and then connect to MySQL to check the e-paper voucher information And cache it in the memory bank; MySQL stores data in the form of tables on the hard disk and can handle complex query operations. The electronic paper ticket system background receives the work ticket segment After the query application, MySQL uses structured query language to query the electronic paper coupon information Composing query results , and sent back to the electronic paper voucher system backend, combined with Redis and MySQL, to ensure the high-speed reading and writing capabilities, persistent storage capabilities, and complex query processing capabilities of the electronic paper voucher management backend; Query results The calculation formula is as follows:
[0022] In the formula, Indicates the query result. Indicates the toll booth is working Information about multiple electronic paper coupons in , Indicates querying the toll booth ticket section through MySQL Information about multiple electronic paper coupons , which is the number of electronic paper coupon numbers remaining in the working ticket section of the toll station; Step 2: The e-paper voucher management backend will query the results The query results are sent back to the Lane Software, which then Refuse to release the vehicle or issue an electronic paper ticket to release the vehicle; Query results Contains information of multiple electronic paper coupons , and each electronic paper coupon information The usage time can be set according to the actual traffic flow of the toll station. If the toll station is working, the ticket section query result No tickets left, indicating that the road ahead is congested and it is not recommended to continue driving. The lane software refuses to release and does not issue electronic paper tickets. If the toll station is working, the ticket section query result If there are remaining tickets, it means that the road ahead is usually passable, and the lane software agrees to release the traffic and issue the electronic paper ticket; Step 3: When the Lane Software issues an e-paper ticket to release the vehicle, the Lane Software transmits the normal release notification of the e-paper ticket to the e-paper ticket management background, and the e-paper ticket management background writes the e-paper ticket information through Redis and MySQL , e-paper voucher information Including the hex of the toll station entrance, the lane number of the toll station entrance, the e-paper voucher number, the vehicle model, the license plate color, the license plate, the entry time of the vehicle and the use status of the e-paper voucher. The e-paper voucher management backend receives the notification of normal release of the e-paper voucher and writes the e-paper voucher information When the electronic paper coupon is in normal use; Step 4: Whenever a vehicle passes through the toll station exit lane, the lane software records the time when the vehicle passes through the exit lane , and calculate the electronic paper coupon information The entry time of vehicles released in the middle lane and the passing time of vehicles in the exit lane Time difference , and then determine the usage status of the electronic paper coupon and charge accordingly according to the different usage status; Time difference The calculation formula is as follows:
[0023] In the formula, Indicates the time difference, Indicates the vehicle entry time when the lane software normally issues electronic paper tickets. Indicates that the lane software records the time when vehicles pass through the exit lane. The difference between the entry time of the released vehicle and the passing time of the vehicle in the exit lane is the actual usage time of the electronic paper coupon; If the time difference does not exceed the usage time, it means that the e-paper voucher has not been used for a period of time, and the lane software charges according to the basic price of the toll station. If the time difference exceeds the usage time, it means that the e-paper voucher has been used for a period of time, and the lane software charges according to the basic price of the toll station and the overtime price. Step 5: The lane software waits for the vehicle to complete the toll collection before releasing it, and transmits the paper coupon cancellation notification to the electronic paper coupon management backend. The electronic paper coupon management backend writes the paper coupon cancellation information through Redis and MySQL, and promptly sends the electronic paper coupon information to the backend. The usage status in the game is updated to completed, and the comprehensive information management has high traffic efficiency; Step 6. Whenever the electronic paper voucher management background receives a normal release notification of the electronic paper voucher or a paper voucher cancellation notification, the electronic paper voucher management background recycles the remaining ticket segment data, reports the number of used ticket numbers of the ticket segment, and synchronizes it to Redis and MySQL. It is practical and records the storage, which is not easy to make mistakes. If the electronic paper voucher management background does not receive a normal release notification of the electronic paper voucher or a paper voucher cancellation notification within one hour, the electronic paper voucher management background recycles the remaining ticket segment data every hour and synchronizes it to Redis and MySQL. Real-time synchronous management of paper voucher resources has high availability.
[0024] The above-mentioned electronic paper voucher management method for ETC is implemented based on the electronic paper voucher management system for ETC, which includes lane software and electronic paper voucher management background; The lane software is equipped with a lane sensor, which is used to output vehicle entry signals and vehicle exit signals. When the lane sensor outputs a vehicle entry signal, the lane software connects to the electronic paper ticket management backend through the network to issue a work ticket segment. Query the application and wait for the query result to be sent back by the e-paper voucher management backend Then choose to refuse to release or release the vehicle with an electronic paper ticket. If the query result If there are remaining tickets, the lane software agrees to release the vehicle, issues an electronic paper ticket, and transmits the normal release notification of the electronic paper ticket to the electronic paper ticket management background. When the lane sensor outputs the vehicle exit signal, the lane software calculates the time difference through the electronic paper ticket information. After that, the usage status of the electronic paper coupon is determined, and the vehicle is charged according to the corresponding price. The vehicle is released after payment is completed, and the paper coupon cancellation notification is transmitted to the electronic paper coupon management backend. It is practical and recorded and stored, which is not easy to make mistakes. The comprehensive information management has high traffic efficiency. The electronic paper voucher management background is set up with Redis and MySQL, and the electronic paper voucher management background receives the work ticket segment When querying applications, connect to Redis to enable query, and then connect to MySQL to check the work ticket segment Electronic paper coupon information MySQL uses structured query language to query the electronic paper coupon information Composing query results , the electronic paper voucher system backend will query the results The information is sent back to the lane software. When the electronic paper coupon management backend receives the notification that the electronic paper coupon is released normally, the electronic paper coupon information is written through Redis and MySQL. When the electronic paper voucher management background receives the paper voucher cancellation notification, it writes the paper voucher cancellation information through Redis and MySQL. Whenever the electronic paper voucher management background receives the normal release notification of the electronic paper voucher or the paper voucher cancellation notification, the electronic paper voucher management background updates the working ticket segment. Remaining e-paper coupon information , and synchronized to Redis and MySQL. If the electronic paper voucher management backend does not receive the normal release notification of the electronic paper voucher or the paper voucher cancellation notification within one hour, the electronic paper voucher management backend will update the work ticket segment every hour. Remaining e-paper coupon information , and synchronized to Redis and MySQL. The frequency of data synchronization directly affects the degree of information sharing and collaboration, ensuring that the electronic paper ticket management background can receive real-time updated traffic information and real-time synchronous management of paper ticket resources with high availability.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A method for managing electronic paper coupons for ETC, characterized by: The following steps are involved: Step 1: Whenever a vehicle passes through the toll station entrance lane, the lane software connects to the electronic paper ticket management backend through the network to apply for the ticket section The electronic paper voucher management backend uses Redis and MySQL to query basic information and analyze the query results ; Redis is used for fast reading, writing and caching, and caches the work ticket segments in the form of key-value pairs To the memory stick, the electronic paper ticket system background receives the work ticket segment After querying the application, connect to Redis to enable query, and then connect to MySQL to check the e-paper voucher information And cache it in the memory bar, MySQL stores the data in the form of a table to the hard disk, and the electronic paper ticket system background receives the work ticket segment After the query application, MySQL uses structured query language to query the electronic paper coupon information Composing query results , and sent back to the electronic paper voucher system backend; Step 2: The e-paper voucher management backend will query the results The query results are sent back to the Lane Software, which then Refuse to release or release the vehicle with an electronic paper ticket, query results Contains information of multiple electronic paper coupons , and each electronic paper coupon information If the usage time is set, the query result of the ticket section will be There are no remaining tickets, the lane software refuses to release, and no electronic paper coupon is issued. If the toll station is working, the ticket section query result If there are remaining tickets, the lane software agrees to release the vehicle and issues an electronic paper ticket; Step 3: When the Lane Software issues an e-paper ticket to release the vehicle, the Lane Software transmits the normal release notification of the e-paper ticket to the e-paper ticket management background, and the e-paper ticket management background writes the e-paper ticket information through Redis and MySQL , e-paper voucher information Including the hex of the toll station entrance, the lane number of the toll station entrance, the e-paper voucher number, the vehicle model, the license plate color, the license plate, the entry time of the vehicle and the use status of the e-paper voucher. The e-paper voucher management backend receives the notification of normal release of the e-paper voucher and writes the e-paper voucher information When the electronic paper coupon is in normal use; Step 4: Whenever a vehicle passes through the toll station exit lane, the lane software uses the electronic paper ticket information Calculate time difference Then determine the usage status of the electronic paper coupon and charge accordingly according to the different usage status; Every time a vehicle passes through the toll station exit lane, the lane software records the time the vehicle passes through the exit lane and calculates the electronic paper ticket information. The time difference between the entry time of the released vehicle and the passing time of the vehicle in the exit lane If the time difference does not exceed the usage time, it means that the electronic paper coupon has not been used for a period of time, and the lane software charges according to the basic price of the toll station. If the time difference exceeds the usage time, it means that the electronic paper coupon has been used for a period of time, and the lane software charges according to the basic price of the toll station and the overtime price. Step 5: The lane software waits for the vehicle to complete the toll collection before releasing it, and transmits the paper voucher cancellation notification to the electronic voucher management backend. The electronic voucher management backend writes the paper voucher cancellation information through Redis and MySQL. When the electronic voucher management backend receives the paper voucher cancellation notification and writes the paper voucher cancellation information, the electronic voucher information is sent to the backend. The usage status in is updated to usage completed; Step 6. Whenever the electronic paper voucher management background receives a normal release notification of the electronic paper voucher or a paper voucher cancellation notification, the electronic paper voucher management background recycles the remaining ticket segment data and synchronizes it to Redis and MySQL. If the electronic paper voucher management background does not receive a normal release notification of the electronic paper voucher or a paper voucher cancellation notification within one hour, the electronic paper voucher management background recycles the remaining ticket segment data every hour and synchronizes it to Redis and MySQL.
2. An electronic paper voucher management system for ETC, used to implement the electronic paper voucher management method for ETC according to claim 1, characterized in that: Including lane software and electronic paper coupon management backend; The lane software is provided with a lane sensor, which is used to output a vehicle entry signal and a vehicle exit signal. When the lane sensor outputs a vehicle entry signal, the lane software connects to the electronic paper ticket management backend through the network to issue a work ticket segment. Query the application and wait for the query result to be sent back by the e-paper voucher management backend Then choose to refuse to release or release the vehicle with an electronic paper ticket. The calculation formula is as follows: In the formula, Indicates the query result. Indicates the toll booth is working Information about multiple electronic paper coupons in , Indicates querying the toll booth ticket section through MySQL Information about multiple electronic paper coupons ; If the query results If there is a remaining ticket, the lane software agrees to release the vehicle, issues an electronic paper ticket, and transmits the normal release notification of the electronic paper ticket to the electronic paper ticket management background. When the lane sensor outputs the vehicle exit signal, the lane software calculates the time difference through the electronic paper ticket information. Then determine the usage status of the electronic paper coupon, charge the vehicle according to the corresponding price, wait for the vehicle to be released after payment is completed, and transmit the paper coupon cancellation notification to the electronic paper coupon management backend; The time difference The calculation formula is as follows: In the formula, Indicates the time difference, Indicates the vehicle entry time when the lane software normally issues electronic paper tickets. Indicates that the lane software records the time when vehicles pass through the exit lane. The difference between the entry time of the released vehicle and the passing time of the vehicle in the exit lane is the actual usage time of the electronic paper coupon; The electronic paper ticket management background is provided with Redis and MySQL, and the electronic paper ticket management background receives the work ticket segment When querying applications, connect to Redis to enable query, and then connect to MySQL to check the work ticket segment Electronic paper coupon information MySQL uses structured query language to query the electronic paper coupon information Composing query results , the electronic paper voucher system backend will query the results The electronic paper voucher information is sent back to the lane software. When the electronic paper voucher management background receives the normal release notification of the electronic paper voucher, it writes the electronic paper voucher information through Redis and MySQL. When the electronic paper voucher management background receives the paper voucher cancellation notification, the paper voucher cancellation information is written through Redis and MySQL. Whenever the electronic paper voucher management background receives the electronic paper voucher normal release notification or paper voucher cancellation notification, the electronic paper voucher management background updates the work ticket segment Remaining e-paper coupon information , and synchronized to Redis and MySQL. If the electronic paper voucher management backend does not receive the normal release notification of the electronic paper voucher or the paper voucher cancellation notification within one hour, the electronic paper voucher management backend will update the work ticket segment every hour. Remaining e-paper coupon information , and synchronize to Redis and MySQL.