KR101837246B1 - Public transportation fee settling system and operating method thereof - Google Patents
Public transportation fee settling system and operating method thereof Download PDFInfo
- Publication number
- KR101837246B1 KR101837246B1 KR1020150095859A KR20150095859A KR101837246B1 KR 101837246 B1 KR101837246 B1 KR 101837246B1 KR 1020150095859 A KR1020150095859 A KR 1020150095859A KR 20150095859 A KR20150095859 A KR 20150095859A KR 101837246 B1 KR101837246 B1 KR 101837246B1
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- South Korea
- Prior art keywords
- server
- distributed
- payment
- central server
- payment terminal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/08—Payment architectures
- G06Q20/14—Payment architectures specially adapted for billing systems
- G06Q20/145—Payments according to the detected use or quantity
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/30—Transportation; Communications
-
- 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
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1034—Reaction to server failures by a load balancer
Abstract
A method of operating a traffic payment system and a traffic payment system including a distributed server, a central server, and a payment terminal is disclosed. A communication between the distributed server and the central server is performed based on a result of monitoring whether or not a failure occurs on the network, and the other distributed server capable of communicating with the central server is searched, and communication with the central server is performed using another searched distributed server. A method of operating a distributed server can be provided.
Description
A method of operating a traffic payment system and a traffic payment system including a distributed server, a central server, and a payment terminal is disclosed.
When the payment terminal reads the card and transmits the payment data to the server, the server approves the payment and provides the payment data to the payment terminal. If multiple payment terminals read multiple cards at the same time and transmit data, the server takes a lot of time to process it, and the process load also increases. In particular, when a failure occurs on the communication line with the server, the processing load of the server is accumulated, and it is difficult to smoothly perform the inquiry of the distance history and the provision of the inquiry result.
According to an exemplary embodiment, even if a failure occurs on a communication network between a central server and some distributed servers, a bypass path can be established between distributed servers to continue communication.
According to an embodiment, even if a failure occurs on the communication network between the central server and the payment terminal, the distribution server can inquire the transaction history and provide the inquiry result.
According to one embodiment, a method of operating a distributed server includes: monitoring whether a failure occurs on a communication network between the distributed server and a central server; Searching for another distributed server capable of communicating with the central server based on the monitoring result; And communicating with the central server using the searched other distribution server.
The step of communicating with the central server may comprise: setting a bypass path through the searched other distribution server using an ad hoc function; And communicating with the central server via the bypass path.
And transmitting an instruction to the payment terminal itself to perform the approval if the other distribution server can not be searched within a predetermined time.
Receiving a transaction history including settlement data from a payment terminal that has made an approval in accordance with the instruction; And storing the transaction history.
And transmitting the transaction history to the central server through the distributed server after the failure is recovered on the communication network between the distributed server and the central server.
And transmitting the transaction history to the central server using the searched other distribution server if the failure continues after the predetermined time and the other distributed server is searched.
Monitoring whether a failure occurs on a communication network between the payment terminal and the central server; And performing wireless communication with the central server and performing short-range wireless communication with the payment terminal when the monitoring results in a failure.
The distribution server performs wired communication and wireless communication with the central server, and can perform wireless communication with the payment terminal.
And downloading the operating information from the central server.
And transmitting the operation information to at least one distributed server that has not received the operation information.
According to one embodiment, a method of operating a payment terminal comprises: monitoring whether a failure occurs on a communication network between the payment terminal and a central server; Searching a distributed server capable of communicating with the central server among the distributed servers in the communication network based on the monitoring result; And performing settlement with the central server using the searched distribution server.
Performing approval by the payment terminal itself when the distribution server that can communicate with the central server can not be searched within a predetermined time; And storing transaction history including payment data according to the approval.
The searched distribution server may back up transaction history including payment data according to the approval of the payment terminal when a failure continues on the communication network between the payment terminal and the central server.
And searching for another distributed server capable of communicating with the central server due to a failure on the communication network between the searched distributed server and the central server. However, when the searched distributed server fails to search for another distributed server within a predetermined time, May receive an instruction to allow the user to perform the authorization itself.
And transmitting the transaction history including the payment data according to the self-approval to the searched distribution server.
According to one embodiment, the distribution server includes a processor for monitoring whether a failure occurs on the communication network between the distributed server and the central server, and searching for another distributed server capable of communicating with the central server based on the monitoring result ; And a communication unit for communicating with the central server using the searched other distributed server.
According to one embodiment, the payment terminal comprises: a sensing unit for sensing a recognized card; And monitoring whether or not a fault occurs on the communication network between the payment terminal and the central server and searching for a distributed server capable of communicating with the central server among the distributed servers in the communication network based on the monitoring result, And a processor for performing settlement of the recognized server with the central server using a distributed server.
According to one embodiment, a traffic payment system includes at least one payment terminal for requesting payment for a recognized card; The method comprising the steps of: monitoring whether or not a failure occurs in a communication network with a central server, searching for another distributed server capable of communicating with the central server when the failure occurs, and communicating with the central server using the other distributed server At least one distribution server; And a central server for forwarding operational information to the at least one distributed server.
Wherein the payment terminal monitors whether or not a fault has occurred on the communication network between the payment terminal and the central server, and based on the monitoring result, a distribution server capable of communicating with the central server searched among the distributed servers in the communication network To perform settlement with the central server.
According to an aspect of the present invention, it is possible to establish a bypass path between distributed servers at the time of failure of the communication network to continue communication.
According to one aspect of the present invention, a central server and a distributed server are connected to a wired network, and a distributed server and a payment terminal are connected to a wireless network, Can be saved.
According to one aspect of the present invention, communication between the central server and the payment terminal can be safely performed without being affected by the occurrence of a failure on the communication network by performing the communication using the distribution server, and the transaction history can be inquired and the inquiry result can be securely provided.
1 is a view for explaining a configuration of a traffic settlement system according to an embodiment and an operation method between the respective components.
FIG. 2 is a diagram for explaining a method of operating among components of a traffic payment system according to an embodiment.
FIG. 3 is a view for explaining a method of operating among the respective components of the traffic settlement system according to another embodiment.
4 is a flowchart illustrating an operation method of a distributed server of a traffic payment system according to an exemplary embodiment of the present invention.
FIG. 5 is a flowchart illustrating an operation method of a distributed server of a traffic settlement system according to another embodiment.
6 is a flowchart illustrating an operation method of a distributed server of a traffic payment system according to another embodiment.
FIG. 7 is a diagram for explaining a method in which a distributed server creates a communication bypass path when a communication failure occurs between a central server and distributed servers in a distributed processing system according to an embodiment.
8 is a diagram for explaining a method in which a central server distributes operational information through distributed servers in a distributed processing system according to an embodiment.
FIG. 9 is a diagram for explaining a method of operating among components of a traffic settlement system according to another embodiment.
10 is a flowchart illustrating an operation method of a payment terminal of a traffic payment system according to an exemplary embodiment of the present invention.
11 is a flowchart illustrating an operation method of a payment terminal of a traffic payment system according to another embodiment.
FIG. 12 is a view for explaining a method of operating among the respective components of the traffic settlement system according to another embodiment.
13 is a block diagram of a distributed server of a traffic payment system according to an embodiment.
14 is a block diagram of a payment terminal of a traffic payment system according to an embodiment.
In the following, embodiments will be described in detail with reference to the accompanying drawings. Like reference symbols in the drawings denote like elements.
Various modifications may be made to the embodiments described below. It is to be understood that the embodiments described below are not intended to limit the embodiments, but include all modifications, equivalents, and alternatives to them.
The terms used in the examples are used only to illustrate specific embodiments and are not intended to limit the embodiments. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.
Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this embodiment belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.
In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. In the following description of the embodiments, a detailed description of related arts will be omitted if it is determined that the gist of the embodiments may be unnecessarily blurred.
1 is a view for explaining a configuration of a traffic settlement system according to an embodiment and an operation method between the respective components.
Referring to FIG. 1, a traffic settlement system according to an embodiment may include a
The
One or a plurality of
The
One or a plurality of
The
The
The
The
As the user tags the
The
The
The
According to the embodiment, the
In one embodiment, the transaction history can be stored not only in the
FIG. 2 is a diagram for explaining a method of operating among components of a traffic payment system according to an embodiment.
Referring to FIG. 2, a process of confirming a transaction history of a user to each of a
When the user tags the card to the
In one embodiment, the transaction history is first inquired to the
FIG. 3 is a view for explaining a method of operating among the respective components of the traffic settlement system according to another embodiment.
3, the traffic payment system according to another embodiment may include a
The
The
4 is a flowchart illustrating an operation method of a distributed server of a traffic payment system according to an exemplary embodiment of the present invention.
Referring to FIG. 4, a distribution server according to an exemplary embodiment monitors whether a failure occurs on a communication network between a distributed server and a central server (410).
Based on the monitoring result of
The distribution server communicates with the central server using other distributed servers retrieved at step 420 (430). At this time, the distributed server can set a bypass route through the other distributed servers using the ad-hoc function, and can communicate with the central server through the bypass route. The method by which the distributed server creates the bypass path will be described with reference to FIG.
FIG. 5 is a flowchart illustrating an operation method of a distributed server of a traffic settlement system according to another embodiment.
Referring to FIG. 5, the distributed server monitors whether a failure occurs on a communication network between the distributed server and the central server (505).
Based on the monitoring result of
The distribution server can determine whether another distributed server has been searched within a preset time (515).
As a result of the determination in
As a result of the determination in
The distribution server receives the transaction history including payment data from the payment terminal that has made the approval by itself in accordance with the instruction of the
The distributed server may determine whether a failure has been restored on the communication network between the central server and the distributed server (540).
As a result of the determination in
As a result of the determination in
As a result of the determination in
As a result of the determination in
6 is a flowchart illustrating an operation method of a distributed server of a traffic payment system according to another embodiment.
Referring to FIG. 6, a distribution server according to another embodiment may monitor whether a failure occurs on a communication network between a payment terminal and a central server (610).
Based on the monitoring result of
If it is determined in
According to an embodiment, if it is determined in
In addition, if it is determined in
If it is determined in
FIG. 7 is a diagram for explaining a method in which a distributed server creates a communication bypass path when a communication failure occurs between a central server and distributed servers in a distributed processing system according to an embodiment.
7, the
When the communication between some of the distributed servers 730-1 and 730-2 and the
The distributed server 730-1 and the distributed server 730-2 search for another distributed server 730-3 capable of communicating with the
The distributed servers 730-1, 730-2, and 730-3 may include a wired and wireless communication switching function. For example, if the communication between the
The payment terminals 750 may or may not be capable of switching between wireless and wired communication depending on the installation position thereof. For example, when the payment terminals 750 are installed in a bus or in a subway, switching between a wired and wireless communication is possible.
For example, if payment terminals 750 are installed in buses or subways, payment terminals 750 may not be able to switch between the existing and the wireless communication, or if the buses or subways are in certain locations It is possible to perform the switching between the radio communication and the radio communication only. On the other hand, when the payment terminals 750 are installed in stationary garages or transportation terminals, the payment terminal 750 can perform switching between the distribution servers and the wired and wireless communication.
730-2 and 730-3 or between the payment terminals 750 and the
8 is a diagram for explaining a method in which a central server distributes operational information through distributed servers in a distributed processing system according to an embodiment.
8, the
The
The distributed server 830-2 having downloaded the operation information from the
FIG. 9 is a diagram for explaining a method of operating among components of a traffic settlement system according to another embodiment.
Referring to FIG. 9, the operation in the case where the distributed server according to one embodiment performs the function of the communication (connection) server is shown.
The traffic payment system according to one embodiment may include a
The
The
The
The
In the event of a failure on the communication network between the distributed
The
10 is a flowchart illustrating an operation method of a payment terminal of a traffic payment system according to an exemplary embodiment of the present invention.
Referring to FIG. 10, a payment terminal according to an exemplary embodiment monitors whether a failure occurs on a communication network between a payment terminal and a central server (1010).
Based on the monitoring result of
The payment terminal performs settlement with the central server using the distributed server retrieved in operation 1020 (1030). At this time, the retrieved distributed server can back up the transaction history including the payment data according to approval of the payment terminal, if the failure continues on the communication network between the payment terminal and the central server.
11 is a flowchart illustrating an operation method of a payment terminal of a traffic payment system according to another embodiment.
Referring to FIG. 11, a payment terminal according to an exemplary embodiment monitors whether a failure occurs on a communication network between a payment terminal and a central server (1110).
The payment terminal can determine whether a distributed server capable of communicating with the central server has been searched within a preset time (1120).
If it is determined in
Thereafter, during the payment with the central server using the distributed server retrieved at
At this time, if the retrieved distributed server can not communicate with the central server due to a failure on the communication network, the retrieved distributed server can search another distributed server that can communicate with the central server. If it is not possible to search for another distributed server within a predetermined time, the searched distributed server can transmit an instruction to the payment terminal to perform approval by itself.
The payment terminal performs its own approval according to the instruction received in
As a result of the determination in
The payment terminal may store transaction history including payment data according to the authorization performed in step 1160 (1170).
FIG. 12 is a view for explaining a method of operating among the respective components of the traffic settlement system according to another embodiment.
Referring to FIG. 12, the traffic payment system according to an embodiment may include a
The
If the communication between the
The
13 is a block diagram of a distributed server of a traffic payment system according to an embodiment.
Referring to FIG. 13, a distributed
The
The
14 is a block diagram of a payment terminal of a traffic payment system according to an embodiment.
14, a
The
The
The
The method according to an embodiment of the present invention can be implemented in the form of a program command which can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. This is possible.
Therefore, the scope of the present invention should not be construed as being limited to the embodiments described, but should be determined by equivalents to the appended claims, as well as the appended claims.
101: Payment terminal
103: Distributed server
105: central server
Claims (20)
Receiving a payment request for a card tagged to the payment terminal from the payment terminal;
Determining whether the payment request has been approved by inquiring the transaction history stored in the distribution server before inquiring to the central server for the payment request;
Monitoring whether a failure occurs on a first network path for communication between the distributed server and the central server;
Searching for another distributed server having a second network path capable of communicating with the central server based on a determination that the payment request has not been granted and a monitoring result that a failure has occurred on the first network path;
Determining whether the other distributed server has been searched within a predetermined time;
If the another distributed server is searched within the predetermined time,
A bypass path through the other distributed servers retrieved using an ad hoc function, the bypass path including a third network path between the second network path and the retrieved other distributed server; ; Transmitting the settlement request to the central server by communicating with the central server via the bypass path;
If the other distributed server can not be searched within the predetermined time,
Transmitting an instruction to the payment terminal to perform payment approval by itself;
Receiving a transaction history including a payment approval result from the payment terminal;
Storing the received transaction history;
Searching for the other distributed server continuously after the predetermined time;
Determining, after the predetermined time, whether the failure continues and the other distributed server is searched; And
Setting the bypass route according to the determination that the failure has continued and searching the other distribution server after the predetermined time, and transmitting the transaction history received from the payment terminal to the central server using the bypass route Steps to transfer
The method comprising the steps of:
Transmitting the transaction history to the central server via the distribution server after the failure is recovered on the first network path
Further comprising the steps of:
Monitoring whether a failure occurs on a network path for communication between the payment terminal and the central server; And
Performing wireless communication with the central server and performing short-range wireless communication with the payment terminal when a failure occurs on the network path between the payment terminal and the central server as a result of the monitoring
Further comprising the steps of:
The distributed server
And performing wired communication and wireless communication with the central server and performing wireless communication with the payment terminal.
Downloading operational information from the central server
Further comprising the steps of:
Transmitting the operational information to at least one distributed server that has not received the operational information
Further comprising the steps of:
Receiving data including payment data from a card recognized by a card reader of the payment terminal;
Monitoring whether a failure occurs on a network path for communication between the payment terminal and the central server;
Based on the monitoring result, the distributed servers in the communication network, each of the distributed servers stores a transaction history, and can inquire the transaction history prior to the inquiry to the central server, A possible bypass path, wherein the bypass path includes a second network path between another distributed server capable of communicating with the central server and a third network path between the distributed servers, ;
Receiving an instruction from the distribution server to allow the payment terminal itself to perform approval if the other distribution server is not found within the predetermined time;
Performing payment approval by the payment terminal itself according to the instruction;
Storing transaction history including payment data according to the payment approval; And
Performing a settlement with the central server using a detour path set via another distributed server searched by the ad hoc function when the other distributed server is searched within the predetermined time
Lt; / RTI >
The distributed server
If the another distributed server is not found within the predetermined time,
Receiving a transaction history including a payment approval result from the payment terminal and storing the transaction history, searching for the other distributed server continuously after the predetermined time, after the predetermined time, the failure continues, Sets the bypass route and transmits the transaction history received from the payment terminal to the central server using the bypass route in accordance with the determination that the payment transaction has been searched.
The retrieved distributed server
An operation method of a payment terminal in a traffic payment system that backs up a transaction history including payment data according to a payment approval of the payment terminal when a failure continues on a network path for communication between the payment terminal and the central server .
Transmitting the transaction history to the retrieved distribution server
Further comprising the steps of:
The transaction history stored in the distribution server is inquired before receiving the payment request for the card tagged to the payment terminal from the payment terminal and before inquiring to the central server for the payment request, Monitoring whether or not a failure occurs on a first network path for communication between the distributed server and the central server, and determining whether the payment request is not approved and monitoring that a failure has occurred on the first network path A processor for searching, based on the result, another distributed server having a second network path capable of communicating with the central server; And
And a communication unit for communicating with the central server using the searched other distributed server
Lt; / RTI >
The processor
Determines whether or not the other distributed server is searched within a predetermined time,
If the another distributed server is searched within the predetermined time,
A bypass route through the searched other distribution server using an Ad-hoc function, the bypass route including a third network route between the second network route and the other distributed server searched for Setting,
If the other distributed server can not be searched within the predetermined time,
The payment server transmits an instruction to perform settlement approval to the settlement terminal by itself, receives and stores a transaction history including the settlement approval result from the settlement terminal, and continuously searches the other distributed server after the predetermined time ,
Setting the bypass path according to the determination that the failure continues and the other distributed server is searched after the predetermined time,
The communication unit
And transmitting the settlement request to the central server by performing communication with the central server through the bypass path when the processor searches the other distributed server within the predetermined time,
Wherein the processor transmits the transaction history received from the payment terminal to the central server using the bypass route according to the determination that the failure continues and the other distribution server is searched after the predetermined time, Distributed servers in the billing system.
A sensing unit for sensing a recognized card; And
Monitoring whether a failure occurs on a network path for communication between the payment terminal and the central server, and based on the monitoring result, the distributed servers in the communication network, each of the distributed servers stores a transaction history, The stored transaction history can be inquired prior to the inquiry to the central server, a bypass path for communicating with the central server, the bypass path comprising a second network path between other distributed servers capable of communicating with the central server, Determining whether another distributed server having a network path between the servers has been searched within a predetermined time and if the other distributed server is not searched within the predetermined time, Upon receiving an instruction to perform the approval, A terminal that performs settlement approval by itself, stores transaction history including payment data according to the payment approval, and performs settlement of the recognized card with the central server using the searched other distribution server
Lt; / RTI >
Wherein the processor performs a settlement with the central server using a detour path set via the other distributed server detected by the ad hoc function when the other distributed server is searched within the predetermined time,
The distributed server
If the another distributed server is not found within the predetermined time,
Receiving and storing a transaction history including a payment approval result from the payment terminal, searching the other distribution server continuously after the predetermined time,
Setting the bypass route according to the determination that the failure has continued and searching the other distribution server after the predetermined time, and transmitting the transaction history received from the payment terminal to the central server using the bypass route A payment terminal within the transportation billing system to transmit.
The method comprising the steps of: monitoring whether a failure occurs on a network path for communication with the central server; searching for another distributed server having a network path capable of communicating with the central server when the failure occurs; At least one distributed server for communicating with a central server, the at least one distributed server storing transaction history and querying the stored transaction history prior to inquiry to the central server; And
A central server for forwarding operational information to the at least one distributed server;
Lt; / RTI >
The payment terminal
Wherein the monitoring server monitors whether or not a fault occurs in a network path for communication between the payment terminal and the central server, and based on the monitoring result, the other distributed server capable of communicating with the central server among the at least one distributed server Determining whether or not a search has been made within a predetermined time, and searching the other distributed server within the predetermined time, a bypass route set via the distributed server searched by the ad hoc function, A second network path between the servers and a third network path between the distribution servers, to perform settlement with the central server,
The distributed server
If the another distributed server is not found within the predetermined time,
Receiving and storing a transaction history including a payment approval result from the payment terminal, searching the other distribution server continuously after the predetermined time,
Setting the bypass route according to the determination that the failure has continued and searching the other distribution server after the predetermined time, and transmitting the transaction history received from the payment terminal to the central server using the bypass route Transport, payment system.
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KR1020150095859A KR101837246B1 (en) | 2015-07-06 | 2015-07-06 | Public transportation fee settling system and operating method thereof |
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KR1020150095859A KR101837246B1 (en) | 2015-07-06 | 2015-07-06 | Public transportation fee settling system and operating method thereof |
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100379576B1 (en) * | 2001-02-01 | 2003-04-10 | 니트젠테크놀러지스 주식회사 | The Network Configuration Method of automatically Network Backup and Load Balancing for Network & System Problem |
KR100618128B1 (en) * | 2004-08-18 | 2006-08-31 | 권도균 | Credit card reader for pre-acknowledgement and, system and method for checking credit card using the same |
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2015
- 2015-07-06 KR KR1020150095859A patent/KR101837246B1/en active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100379576B1 (en) * | 2001-02-01 | 2003-04-10 | 니트젠테크놀러지스 주식회사 | The Network Configuration Method of automatically Network Backup and Load Balancing for Network & System Problem |
KR100618128B1 (en) * | 2004-08-18 | 2006-08-31 | 권도균 | Credit card reader for pre-acknowledgement and, system and method for checking credit card using the same |
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