CN108230464A - A kind of vehicle barcode scanning discrepancy field system and method - Google Patents
A kind of vehicle barcode scanning discrepancy field system and method Download PDFInfo
- Publication number
- CN108230464A CN108230464A CN201810055741.8A CN201810055741A CN108230464A CN 108230464 A CN108230464 A CN 108230464A CN 201810055741 A CN201810055741 A CN 201810055741A CN 108230464 A CN108230464 A CN 108230464A
- Authority
- CN
- China
- Prior art keywords
- parking lot
- information
- mqtt
- server
- barcode scanning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- G07B15/02—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems
- G07B15/04—Arrangements or apparatus for collecting fares, tolls or entrance fees at one or more control points taking into account a variable factor such as distance or time, e.g. for passenger transport, parking systems or car rental systems comprising devices to free a barrier, turnstile, or the like
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
Abstract
The invention discloses a kind of vehicle barcode scanning discrepancy field system and method, vehicle barcode scanning discrepancy field system includes API module and wechat server-side on parking lot server-side, high in the clouds MQTT Service, parking lot MQTT servers, parking lot sentry box end, line.By device and the program of typing authentication information being set to be verified come the identity to vehicle driver respectively going out admission mouth, it can effectively prevent stealing the generation of vehicle case, greatly improve the antitheft and security level in parking lot.Automatic function of deducting fees under the premise of being authorized the present invention also provides car owner, by same user's wechat Quick Response Code by passing in and out barcode scanning twice, it is deducted fees according to interval time from line, it can realize fast and easily paying process, the problems such as it is more smooth so that vehicle comes in and goes out, reduces entrance vehicle congestion caused by due to payment procedure.
Description
Technical field
The present invention relates to vehicle room entry/exit management technical field, specially a kind of vehicle barcode scanning discrepancy field system and method.
Background technology
Overwhelming majority parking lot is all that vehicle is gone out using the form for providing parking card (including moon card and temporary card) at present
Enter to be managed, gate clearance is opened to swipe the card as unique conditional.Existing parking card particularly temporary card, does not have usually
Standby information of vehicles checks function, and parking lot will not verify driver identity, and experienced cartheft can be easily by vehicle
Drive away.For being accustomed to staying in parking card for the car owner of interior or parking card forgetting often in the car, such manager
There is very big security risk in formula.In addition, the mode of cash payment is usually used in existing Public Parking, work as vehicles passing in and out
When more, due to the reduction process efficiency of this traditional approach, it is easy to cause the situation of entrance vehicle congestion.Therefore, there is an urgent need for
A kind of parking lot management mode with more high security level and faster payment channel, even prevents case above to reduce
Occur.
Invention content
The purpose of the present invention is to provide a kind of vehicle barcode scanning discrepancy field system and methods, can greatly improve parking lot
Antitheft and security level, while more convenient payment channel is provided, convenient for the management of parking lot vehicles passing in and out, to solve
The problems mentioned above in the background art.
To achieve the above object, the present invention provides following technical solution:A kind of vehicle barcode scanning discrepancy field system, including parking lot
Server-side, high in the clouds MQTT Service, parking lot MQTT servers, parking lot sentry box end, API module and wechat server-side on line;It is micro-
Telecommunications services end is used to obtain the barcode scanning information of wechat user, and transfers information to API module on line;The letter of API module on line
The input terminal of number output terminal and high in the clouds MQTT Service is electrically connected, and high in the clouds MQTT Service input terminals are also electrically connected to
Parking lot server-side, the output module of parking lot server-side are connect with the input terminal of parking lot MQTT servers, parking lot MQTT servers
Signal feedback interface is connected to the input module of parking lot server-side, the output ports of parking lot MQTT servers also with parking lot sentry box end
It is electrically connected, the signal output interface feedback link at parking lot sentry box end is on the MQTT servers of parking lot, and parking lot MQTT servers
Processing signal is sent to by parking lot server-side on the MQTT Service of high in the clouds, the system for forming complete set.
High in the clouds MQTT Service refer to high in the clouds MQTT servers, and MQTT is that one kind that IBM is released is set for mobile terminal
The standby publish/subscribe agreement based on TCP/IP, can connect a large amount of distance sensor and control device.
API is the abbreviation of application programming interface (Application Programming Interface).
Preferably, the wechat user is scanned the two-dimensional code by APP, and 2 D code information includes parking lot number, parking lot channel
Number information.
Preferably, API module is used to generate Provisional Number Plate information, returns to license board information, subscribes to different stop on the line
Car owner inscribes, and parking theme is sent to high in the clouds MQTT Service.
Preferably, subject information is sent to parking lot server-side, parking lot server-side by the high in the clouds MQTT Service in time
Information is distributed to parking lot MQTT servers, and be sent to parking lot sentry box end by parking lot MQTT servers.
The present invention provides another technical solution:A kind of method of vehicle barcode scanning discrepancy field system, includes the following steps:
S1:User is numbered by wechat APP scannings comprising parking lot, parking lot channel number information goes out admission Quick Response Code;
S2:Wechat serve end program obtains user's openid information, and verification information is legal, is obtained further according to openid information
Provisional Number Plate is taken, and is generated by API module on line;
S3:API module subscribes to theme topic A on line, and issues barcode scanning information to theme topic B, while information connects
Mouth keeps information to connect with high in the clouds MQTT Service;
S4:The subscription theme topic B information received is sent to parking lot server-side, parking lot clothes by high in the clouds MQTT Service
The interim reply theme topic C for going out admission execution result information comprising vehicle are subscribed at business end, and issue barcode scanning information to theme
topic E;
S5:Theme topic E information is distributed to parking lot MQTT servers by parking lot server-side, and by parking lot MQTT servers
The theme topic E of subscription are sent to parking lot sentry box end;
S6:The information that the verification of parking lot sentry box end receives, and parking lot MQTT servers are fed back to again after discriminating whether effectively;
S7:Parking lot MQTT servers receive the parking lot execution result information for subscribing to theme topic C, and are sent to parking lot clothes
Business end;
S8:Parking lot server-side receives the reply of temporary subscription theme topic C, and issues sentry box operating result to theme
topic A;
S9:Theme topic A information is distributed to high in the clouds MQTT Service, high in the clouds MQTT by parking lot server-side
The input terminal subscription of Service has the theme topic B that parking lot server-side is sent;
S10:High in the clouds MQTT Service feed back to the return information of temporary subscription theme topic A received on line
API module, and sentry box operation result information is sent to user by API module on line.
Openid information refers to user's unique identifier information;Theme topic A refer to that theme A, theme topic B refer to
Theme B, theme topic C refer to that theme C, theme topic E (topic E themes) refer to theme E.
Preferably, specific procedure is in the step S2:Wechat server-side detects storage unit by inside and differentiates discrepancy
Whether field has Provisional Number Plate corresponding with openid information, if not having, Provisional Number Plate is generated by API module on line, if so, logical
It crosses API module on line and returns to license board information.
Preferably, specific procedure is in the step S6:If the information that the verification of parking lot sentry box end receives is effective, and performs
Go out admission relevant operation, information is distributed to by successfully publication operating result to be operated to theme topic C, and by parking lot sentry box end
Parking lot MQTT servers;If the information that the verification of parking lot sentry box end receives is invalid, return operation failure, and sent out by parking lot sentry box end
Cloth operating result subscribes to theme topic E.
Preferably, parking lot sentry box end and parking lot server-side are normally open.
Compared with prior art, the beneficial effects of the invention are as follows:
This vehicle barcode scanning comes in and goes out field system and method, by the dress for going out admission mouth and setting respectively typing authentication information
It puts and is verified with program come the identity to vehicle driver, can effectively prevent stealing the generation of vehicle case, greatly improve
The antitheft and security level in parking lot;Moreover, the automatic function of deducting fees under the premise of being authorized the present invention also provides car owner, by same use
Family wechat Quick Response Code deducts fees from line according to interval time by passing in and out barcode scanning twice, can realize and fast and easily pay the fees
Process so that vehicle comes in and goes out more smooth, the problems such as reducing entrance vehicle congestion caused by due to payment procedure.
Description of the drawings
Fig. 1 is the general frame flow chart of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, in the embodiment of the present invention:A kind of vehicle barcode scanning discrepancy field system, including parking lot server-side, high in the clouds
MQTT Service, parking lot MQTT servers, parking lot sentry box end, API module and wechat server-side on line, parking lot sentry box end and vehicle
Field server-side is normally open;Wechat server-side is used to obtain the barcode scanning information of wechat user, and wechat user is scanned by APP
Quick Response Code, 2 D code information includes parking lot number, parking lot channel number information, and transfers information to API module on line, on line
API module is used to generate Provisional Number Plate information, returns to license board information, subscribes to different parking themes, and will parking theme transmission
To high in the clouds MQTT Service, subject information is sent to parking lot server-side, parking lot server-side by high in the clouds MQTT Service in time
Information is distributed to parking lot MQTT servers, and be sent to parking lot sentry box end by parking lot MQTT servers;The letter of API module on line
The input terminal of number output terminal and high in the clouds MQTT Service is electrically connected, and high in the clouds MQTT Service input terminals are also electrically connected to
Parking lot server-side, the output module of parking lot server-side are connect with the input terminal of parking lot MQTT servers, parking lot MQTT servers
Signal feedback interface is connected to the input module of parking lot server-side, the output ports of parking lot MQTT servers also with parking lot sentry box end
It is electrically connected, the signal output interface feedback link at parking lot sentry box end is on the MQTT servers of parking lot, and parking lot MQTT servers
Processing signal is sent to by parking lot server-side on the MQTT Service of high in the clouds, the system for forming complete set.
A kind of method of vehicle barcode scanning discrepancy field system, includes the following steps:
S1:User is numbered by wechat APP scannings comprising parking lot, parking lot channel number information goes out admission Quick Response Code;
S2:Wechat serve end program obtains user's openid information, and verification information is legal, is obtained further according to openid information
Provisional Number Plate is taken, and is generated by API module on line;
S3:API module subscribes to theme topic A on line, and issues barcode scanning information to theme topic B, while information connects
Mouth keeps information to connect with high in the clouds MQTT Service;
S4:The subscription theme topic B information received is sent to parking lot server-side, parking lot clothes by high in the clouds MQTT Service
The interim reply theme topic C for going out admission execution result information comprising vehicle are subscribed at business end, and issue barcode scanning information to theme
topic E;
S5:Theme topic E information is distributed to parking lot MQTT servers by parking lot server-side, and by parking lot MQTT servers
The theme topic E of subscription are sent to parking lot sentry box end;
S6:The information that the verification of parking lot sentry box end receives, and parking lot MQTT servers are fed back to again after discriminating whether effectively;
S7:Parking lot MQTT servers receive the parking lot execution result information for subscribing to theme topic C, and are sent to parking lot clothes
Business end;
S8:Parking lot server-side receives the reply of temporary subscription theme topic C, and issues sentry box operating result to theme
topic A;
S9:Theme topic A information is distributed to high in the clouds MQTT Service, high in the clouds MQTT by parking lot server-side
The input terminal subscription of Service has the theme topic B that parking lot server-side is sent;
S10:High in the clouds MQTT Service feed back to the return information of temporary subscription theme topic A received on line
API module, and sentry box operation result information is sent to user by API module on line.
Preferably, the specific procedure of step S2 is:Wechat server-side determines admission by inside detection storage unit
It is no to have Provisional Number Plate corresponding with openid information, if not having, Provisional Number Plate is generated by API module on line, if so, passing through line
Upper API module returns to license board information.
Preferably, the specific procedure of step S6 is:If the information that the verification of parking lot sentry box end receives is effective, and performs discrepancy
Information is distributed to parking lot by field relevant operation, successfully publication operating result to be operated to theme topic C, and by parking lot sentry box end
MQTT servers;If the information that the verification of parking lot sentry box end receives is invalid, return operation failure, and issued and grasped by parking lot sentry box end
Make result and subscribe to theme topic E.
Preferably, parking lot sentry box end and parking lot server-side are normally open.
In summary:This vehicle barcode scanning comes in and goes out field system and method, by typing identity being set to test respectively going out admission mouth
The device and program for demonstrate,proving information are verified come the identity to vehicle driver, can effectively prevent stealing the hair of vehicle case
It is raw, greatly improve the antitheft and security level in parking lot;Moreover, the automatic work(of deducting fees under the premise of being authorized the present invention also provides car owner
Can, by same user's wechat Quick Response Code by passing in and out barcode scanning twice, deducted fees, can realized quick from line according to interval time
Convenient paying process so that vehicle discrepancy is more smooth, reduces entrance vehicle congestion etc. caused by due to payment procedure and asks
Topic.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (8)
- The field system 1. a kind of vehicle barcode scanning comes in and goes out, which is characterized in that including parking lot server-side, high in the clouds MQTT Service, parking lot MQTT servers, parking lot sentry box end, API module and wechat server-side on line;Wechat server-side is used to obtain sweeping for wechat user Code information, and transfer information to API module on line;The signal output end of API module is with high in the clouds MQTT Service's on line Input terminal is electrically connected, and high in the clouds MQTT Service input terminals are also electrically connected to parking lot server-side, the output of parking lot server-side Module is connect with the input terminal of parking lot MQTT servers, and the signal feedback interface of parking lot MQTT servers is connected to parking lot server-side Input module, the output ports of parking lot MQTT servers is also electrically connected with parking lot sentry box end, and the signal at parking lot sentry box end is defeated Outgoing interface feedback link is on the MQTT servers of parking lot, and parking lot MQTT servers are sent signal is handled by parking lot server-side To the MQTT Service of high in the clouds, the system that forms complete set.
- The field system 2. a kind of vehicle barcode scanning according to claim 1 comes in and goes out, which is characterized in that the wechat user passes through APP is scanned the two-dimensional code, and 2 D code information includes parking lot number, parking lot channel number information.
- The field system 3. a kind of vehicle barcode scanning according to claim 1 comes in and goes out, which is characterized in that API module is used on the line In generation Provisional Number Plate information, return license board information, different parking themes is subscribed to, and parking theme is sent to high in the clouds MQTT Service。
- The field system 4. a kind of vehicle barcode scanning according to claim 1 comes in and goes out, which is characterized in that the high in the clouds MQTT Subject information is sent to parking lot server-side by Service in time, and information is distributed to parking lot MQTT servers by parking lot server-side, and Parking lot sentry box end is sent to by parking lot MQTT servers.
- A kind of method of field system 5. vehicle barcode scanning according to any one of claims 1 to 4 comes in and goes out, which is characterized in that including Following steps:S1:User is numbered by wechat APP scannings comprising parking lot, parking lot channel number information goes out admission Quick Response Code;S2:Wechat serve end program obtains user's openid information, and verification information is legal, faces further according to openid acquisition of information When car plate, and generated by API module on line;S3:API module subscribes to theme topic A on line, and issues barcode scanning information to theme topic B, at the same information interface and High in the clouds MQTT Service keep information connection;S4:The subscription theme topic B information received is sent to parking lot server-side, parking lot server-side by high in the clouds MQTT Service The interim reply theme topic C for going out admission execution result information comprising vehicle are subscribed to, and issue barcode scanning information to theme topic E;S5:Theme topic E information is distributed to parking lot MQTT servers, and will be ordered by parking lot MQTT servers by parking lot server-side The theme topic E read are sent to parking lot sentry box end;S6:The information that the verification of parking lot sentry box end receives, and parking lot MQTT servers are fed back to again after discriminating whether effectively;S7:Parking lot MQTT servers receive the parking lot execution result information for subscribing to theme topic C, and are sent to parking lot service End;S8:Parking lot server-side receives the reply of temporary subscription theme topic C, and issues sentry box operating result to theme topic A;S9:Theme topic A information is distributed to high in the clouds MQTT Service by parking lot server-side, high in the clouds MQTT Service's Input terminal subscription has the theme topic B that parking lot server-side is sent;S10:The return information of temporary subscription theme topic A received is fed back to API moulds on line by high in the clouds MQTT Service Block, and sentry box operation result information is sent to user by API module on line.
- The method of field system 6. a kind of vehicle barcode scanning according to claim 5 comes in and goes out, which is characterized in that in the step S2 Specific procedure is:Wechat server-side detects storage unit by inside and determines whether admission has face corresponding with openid information When car plate, if not having, by line API module generate Provisional Number Plate, if so, pass through on line API module return license board information.
- The method of field system 7. a kind of vehicle barcode scanning according to claim 5 comes in and goes out, which is characterized in that in the step S6 Specific procedure is:If the information that the verification of parking lot sentry box end receives is effective, and performs out admission relevant operation, to be operated successfully to send out Information is distributed to parking lot MQTT servers by cloth operating result to theme topic C, and by parking lot sentry box end;If parking lot sentry box end It verifies that the information received is invalid, returns operation failure, and theme topic E are subscribed to by parking lot sentry box end publication operating result.
- The method of field system 8. a kind of vehicle barcode scanning according to claim 5 comes in and goes out, which is characterized in that the parking lot sentry box End and parking lot server-side are normally open.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109584607A (en) * | 2018-12-07 | 2019-04-05 | 东软睿驰汽车技术(沈阳)有限公司 | A kind of method and system of parking lot automatic parking |
TWI708219B (en) * | 2018-07-10 | 2020-10-21 | 易停網股份有限公司 | Network member scan method and system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105427422A (en) * | 2015-11-16 | 2016-03-23 | 立德高科(北京)数码科技有限责任公司 | Parking lot management system and method thereof |
CN106251409A (en) * | 2016-08-12 | 2016-12-21 | 广州市铂云网络科技有限公司 | The validation of payment method and device in vehicles while passing parking lot based on parking lot box |
CN107424004A (en) * | 2017-05-16 | 2017-12-01 | 北京悦畅科技有限公司 | A kind of parking lot management method and apparatus |
CN107610476A (en) * | 2017-09-21 | 2018-01-19 | 深圳艾迪泰格科技有限公司 | A kind of unlicensed car charge system in car identification parking lot and method based on Quick Response Code |
-
2018
- 2018-01-20 CN CN201810055741.8A patent/CN108230464A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105427422A (en) * | 2015-11-16 | 2016-03-23 | 立德高科(北京)数码科技有限责任公司 | Parking lot management system and method thereof |
CN106251409A (en) * | 2016-08-12 | 2016-12-21 | 广州市铂云网络科技有限公司 | The validation of payment method and device in vehicles while passing parking lot based on parking lot box |
CN107424004A (en) * | 2017-05-16 | 2017-12-01 | 北京悦畅科技有限公司 | A kind of parking lot management method and apparatus |
CN107610476A (en) * | 2017-09-21 | 2018-01-19 | 深圳艾迪泰格科技有限公司 | A kind of unlicensed car charge system in car identification parking lot and method based on Quick Response Code |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI708219B (en) * | 2018-07-10 | 2020-10-21 | 易停網股份有限公司 | Network member scan method and system |
CN109584607A (en) * | 2018-12-07 | 2019-04-05 | 东软睿驰汽车技术(沈阳)有限公司 | A kind of method and system of parking lot automatic parking |
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