KR102383712B1 - Method and system for providing open application programming interface service of autonomous driving data - Google Patents

Abstract

The present invention comprises executing, by a server with high availability among a plurality of servers, a service preferentially, thereby improving a response speed for an open API service of autonomous driving data; further comprises, if the availability of the server which has received a request for the open API service of autonomous driving data is less than a reference value, directly executing the open API service of autonomous driving data, and if the availability of the server is more than the reference value, requesting a relay to another server with low availability to request the relay to other servers before the server reaches its processing limit, thereby preventing a response speed delay or a server crash; further comprises setting, by one server among the plurality of servers, another server as a relay server and directly requesting the relay server to perform a service relay more quickly, thereby improving response and processing speeds; and further comprises periodically transmitting, by the plurality of servers, availability information to a shared data management center, and converting, by the shared data management center, the availability of the plurality of servers into numerical values according to the availability information, thereby selectively using the servers based on more rapid and accurate availability.

Description

A system and method for providing an open API service of autonomous driving data {Method and system for providing open application programming interface service of autonomous driving data}

The present invention relates to a system and method for providing an open API service for autonomous driving data, and more particularly, a server with high availability among a plurality of servers is configured to respond to the service preferentially, whereby autonomous driving including reference map information It relates to a system and method for providing an open API service for autonomous driving data in which response speed of data can be improved and server downtime can be prevented.

In general, API (Application Programming Interface) refers to a language or message format used for communication between the operating system and applications, It is a collection of various necessary functions. The open API is shared so that an external developer or a client including an unspecified majority can easily and easily develop or utilize an application program of the server by exposing this API to the outside.

However, when numerous clients request data simultaneously, there is a problem in that the response speed of the server is delayed or the server is down.

Korean Patent Registration No. 10-1107319

SUMMARY OF THE INVENTION An object of the present invention is to provide a system and method for providing an open API service for autonomous driving data capable of improving data response speed and preventing server downtime.

The system for providing an open API service for autonomous driving data according to the present invention is a first server of a plurality of servers for autonomous driving data including maps and road-related attribute information with precision stored in a shared data management center from a client. receiving a request for an open API service; inquiring, by the first server, of availability of the plurality of servers stored in advance in the shared data management center; setting, by the first server, another second server from among the plurality of servers as a relay server when the availability of the first server is equal to or greater than a preset reference value; requesting, by the first server, to relay the open API service to the relay server when the relay server is set; receiving, by the relay server, a relay request for the open API service; and executing, by the relay server, the open API service when the availability of the relay server is less than the reference value.

If the availability of the relay server is equal to or greater than the reference value, comparing the number of via nodes, which is the number of servers that have received and passed through the relay request for the open API service, with a preset number with a preset number; , the relay server inquiring again the availability of the plurality of servers stored in advance in the shared data management center, and the relay server selecting another third server from among the plurality of servers according to the availability The method further includes resetting to a new relay server.

When the relay server is reset, requesting a relay for the open API service from the reset relay server, receiving the relay request for the open API service by the reset relay server, and the reset relay The method further includes the step of executing, by the reset relay server, the open API service when the availability of the server is less than the reference value.

When the number of via nodes exceeds the set number, it responds to the client with a service error.

The relay server executes the open API service, and the execution result responds to the client through the first server.

A server having a high response probability due to a relatively low availability among the plurality of servers is set as the relay server.

If the availability of the first server is less than the reference value, the first server executes the open API service to the client and responds to the client.

The servers transmit availability information including at least one of each resource, log, thread, traffic, and service usage to the shared data management center at preset time intervals.

The shared data management office converts the availability information received from the servers into the availability and stores it.

A system for providing an open API service for autonomous driving data according to the present invention includes: a shared data management center in which autonomous driving data including maps and road-related attribute information with precision and availability of a plurality of servers are stored in advance; a server communication unit provided in each of the plurality of servers to receive a request signal for an open API service of the autonomous driving data from a client or to transmit and receive a signal for requesting relay of the open API service between the servers; a server determination unit provided in each of the servers, inquiring about availability of the servers, and setting a server to relay the open API service from among the plurality of servers according to the availability; and a server control unit provided in each of the servers to execute the open API service for the autonomous driving data stored in the shared data management center or to request a relay for the open API service from the relay server.

a data communication unit provided in the shared data management center to communicate with the servers; a data collection unit provided in the shared data management office to collect the autonomous driving data and availability information of the servers; a data analysis unit converting the availability information collected by the management office collection unit into availability according to a preset standard; and a data storage unit configured to store the autonomous driving data, the availability information, and the availability.

According to the present invention, a server having high availability among a plurality of servers is configured to preferentially execute a service, so that a response speed of autonomous driving data to an open API service can be further improved.

In addition, if the availability of the server receiving the request for the open API service of autonomous driving data is less than the reference value, the open API service of the autonomous driving data is executed, and if the availability of the server is higher than the reference value, it is relayed to another server with low availability By configuring to request , the server can request a relay from other servers before reaching the processing limit, thereby preventing a delay in response speed or a server downtime.

In addition, since any one of the plurality of servers sets another server as a relay server and directly requests a relay, service relay can be performed more quickly, so that response and processing speed can be improved.

In addition, the plurality of servers periodically transmits availability information to the shared data management center, and the shared data management center converts the availability of the plurality of servers into numerical values according to the availability information, thereby providing faster and more accurate availability. Servers may optionally be used.

1 is a diagram schematically showing the configuration of an open API service system for autonomous driving data according to an embodiment of the present invention.
2 is a diagram schematically illustrating the internal configuration of a server and a shared data management center according to an embodiment of the present invention.
3 is a flowchart illustrating a service method of a first server receiving a service request from a client in the present invention.
4 is a flowchart illustrating a service method of a relay server receiving a relay request from a first server in the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a diagram schematically showing the configuration of an open API service system for autonomous driving data according to an embodiment of the present invention. 2 is a diagram schematically illustrating the internal configuration of a server and a shared data management center according to an embodiment of the present invention.

1 and 2 , an open API service system for autonomous driving data according to an embodiment of the present invention includes a client 10 , a plurality of servers 20 , and a shared data management center 30 .

The autonomous driving data includes reference map information including a map with precision and road-related attribute information. In addition, the autonomous driving data may include all data necessary for autonomous driving, such as sensor information, weather information, traffic information, and traffic light information, in addition to the reference map information. The road-related attribute information includes a road record system including information on the type of road facility, road grade, road extension, road width, etc., a road sign including information on the type of road sign, management agency, registration date, location information, etc. Management system, traffic safety facility management system including information on installation date, location, content, length and width of traffic safety facilities, tunnels including information on allowable loads, safety classes, limit heights, locations, etc. of tunnels and bridges and information collected from the bridge management system. However, the present invention is not limited thereto and may additionally be applied as long as it is necessary for autonomous driving.

The client 10 includes a terminal of an institution that intends to use the autonomous driving data, a terminal of an autonomous driving vehicle, a smart phone, and the like.

In FIG. 1 , it has been described as an example that the number of the clients 10 is one, but the present invention is not limited thereto and may be formed of a plurality of clients.

The plurality of servers 20 are nodes communicating between the client 10 and the shared data management center 30 .

The servers 20 include a server communication unit 20a, a server determination unit 20b, and a server control unit 20c, respectively.

The server communication unit 20a receives a request signal for an open API service of the autonomous driving data from the client 10 . In addition, the server communication unit 20a transmits and receives a signal requesting relay for the open API service between the servers 20 .

The server determination unit 20b inquires the availability of the servers 20 stored in the shared data management center 30, and selects the open API service from among the plurality of servers 20 according to the availability. Set the server to relay.

The server control unit 20c directly executes the open API service for the autonomous driving data stored in the shared data management center 30 or executes a service relay to the relay server.

The shared data management office 30 includes a data communication unit 30a, a data collection unit 30b, a data storage unit 30c, and a data analysis unit 30d.

The data communication unit 30a communicates with the servers 20 to receive a signal for the open API service execution request from the servers 20 . In addition, the data communication unit 30a receives the availability information of the servers 20 from the servers 20 and provides the autonomous driving data or information on the availability to the servers 20 . .

The data collection unit 30b collects the autonomous driving data and availability information of the servers 20 . The autonomous driving data includes the map with the precision and the road-related attribute information, and is collected from the separately built road book system, the road sign management system, the traffic safety facility management system, and the tunnel and bridge management system. can do. The availability information of the servers 20 will be described as information including at least one of a resource, log, thread, traffic, and service usage of each of the servers 20 , for example. That is, the servers 20 periodically transmit availability information to the data collection unit 30b of the shared data management center 30 .

The data analysis unit 30d converts the availability information of the servers 20 collected by the data collection unit 30b into availability according to a preset criterion. The availability means service processing capability, and in the present embodiment, it is expressed in a range of 0 to 100 based on 100. For example, when the availability is 70, it means that the server is being used up to 70%.

The data storage unit 30c stores the autonomous driving data, the availability information, and the availability. The data storage unit 30c is stored as an availability information table indicating availability information for the plurality of servers 20, and is updated at preset time intervals. The availability information table may include a number of a server, a service number, a location of a server, availability of a server, an update time, and the like.

An open API service method of autonomous driving data according to an embodiment of the present invention configured as described above will be described as follows.

3 is a flowchart illustrating a service method of a first server receiving a service request from a client in the present invention.

Referring to FIG. 3 , first, a first server 21 of any one of the plurality of servers 20 receives a request for an open API service of the autonomous driving data from the client 10 ( S11 ). )

When the first server 21 receives the request for the open API service of the autonomous driving data, the first server 21 inquires the availability. (S12)

In the step of inquiring the availability ( S12 ), the availability may be inquired from the availability information table stored in the shared data management center 30 .

The availability of the first server 21 is compared with a preset reference value (S13).

The availability of the servers 20 is based on 100, and the reference value is 70 as an example. The smaller the availability, the smaller the processing capacity of the server 20 is. That is, when the availability of the first server 21 is less than the reference value of 70, it is determined that the response speed is reduced.

If the availability of the first server 21 is less than the reference value, it is determined that the availability of the first server 21 is sufficient, and the first server 21 stores the autonomous driving in the shared data storage 30 . Request execution of open API service for data. (S14)

The first server 21 directly executes the open API service, and responds to the execution result to the client 10 (S15).

On the other hand, if the availability of the first server 21 is equal to or greater than the reference value, it is determined that the availability of the first server 21 is insufficient.

The first server 21 sets another second server 22 among the plurality of servers 20 as a relay server. (S16)

At this time, the first server 21 inquires the availability of the plurality of servers 20 from the availability information table stored in the shared data storage 30, and the availability of the plurality of servers 20 The server with the lowest degree is set as the relay server. That is, since the response probability is higher as the availability is relatively low, it is preferable to set the server having the lowest availability among the plurality of servers 20 as the relay server.

When the second server 22 is set as the relay server, it is determined whether the first server 21 can access the relay server (S17).

If it is determined that access to the relay server is impossible, the relay server is configured again.

When it is determined that access to the relay server is possible, the first server 21 requests the relay server to relay the open API service.

4 is a flowchart illustrating a service method of a relay server receiving a relay request from a first server in the present invention.

Referring to FIG. 4 , the relay server receives a relay request for the open API service from the first server 21 (S21).

When the relay server receives the relay request, the availability of the relay server is compared with the reference value (S22).

If the availability of the relay server is less than the reference value, it is determined that the availability of the relay server is sufficient. Accordingly, the relay server requests the shared data storage 30 to execute an open API service for the autonomous driving data (S23).

The second server 22, which is the relay server, executes the open API service, and the execution result responds to the client 10 through the first server 21 (S24).

On the other hand, if the availability of the relay server is equal to or greater than the reference value, it is determined that the availability of the relay server is insufficient.

Accordingly, the relay server compares the number of transit nodes with a preset number. (S25)

Here, the number of transit nodes is the number of relay servers that have received and passed through the relay request for the open API service. If the number of via nodes is large, the service response due to relaying is delayed. Therefore, it is preferable to limit the number of via nodes to be less than or equal to the set number. In this embodiment, the set number will be described as an example of two.

If the number of via nodes is less than or equal to the set number, it is determined that additional relay requests can be made, and the plurality of servers 20 from the availability information table stored in the shared data storage 30 to set up the relay server again. ) is inquired about the availability. (S26)

The second server 22, which is the relay server, resets the server with the lowest availability among the plurality of servers 20 as a new relay server (S27).

If the third server among the plurality of servers 20 is set as a new relay server, it is determined whether the second server 22 can connect to the third server 23 (S28).

If it is determined that access to the third server 23 is impossible, the relay server is re-established.

When it is determined that access to the third server 23 is possible, the second server 22 requests the third server 23 to relay the open API service.

The service method of the relay server receiving the relay request for the open API service repeats the steps S21 to S28.

On the other hand, if the number of transit nodes exceeds the set number, it is determined that additional relay requests cannot be made.

Accordingly, the first server 21 responds to the client 10 with a service error. (S29)

That is, if too many relays are made between the servers 20 and the number of passing nodes exceeds the set number, the service response due to the relay is delayed, so that the relay is no longer relayed and a response is made with a service error.

As described above, in the present invention, the client 10 directly requests the open API service of the autonomous driving data to the server 20 .

In addition, since the server 20 can directly request the relay of the service to another server before the availability reaches a preset reference value and reaches the limit value, the response speed of the service can be further improved, and the server due to excessive processing capacity down can be prevented.

In addition, the availability of the plurality of servers 20 as well as the autonomous driving data is stored in the shared data management center 30 and updated at a set time interval according to the availability of the servers 20 A service response can be made efficiently.

Although the present invention has been described with reference to the embodiment shown in the drawings, which is merely exemplary, it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

10: client 20: server
30: Shared Data Management Office

Claims (11)

Receiving, by any one of the plurality of servers, a request for an open API service for autonomous driving data including a map and road-related attribute information with precision stored in a shared data management center from a client;
Inquiring, by the first server, the availability of the plurality of servers stored in advance in the shared data management center;
setting, by the first server, another second server from among the plurality of servers as a relay server when the availability of the first server is equal to or greater than a preset reference value;
requesting, by the first server, to relay the open API service to the relay server when the relay server is set;
receiving, by the relay server, a relay request for the open API service;
If the availability of the relay server is less than the reference value, the relay server executing the open API service,
If the availability of the relay server is equal to or greater than the reference value, comparing the number of passing nodes, which is the number of servers that received and passed through the relay request for the open API service, with a preset number;
If the number of via nodes is less than or equal to the set number, the relay server inquiring again the availability of the plurality of servers stored in advance in the shared data management center;
and resetting, by the relay server, another third server among the plurality of servers as a new relay server according to the availability. delete The method according to claim 1,
when the relay server is reset, requesting relay for the open API service to the reset relay server;
receiving, by the reset relay server, a relay request for the open API service;
When the availability of the reset relay server is less than the reference value, the method further comprising the step of executing the open API service by the reset relay server. The method according to claim 1,
When the number of transit nodes exceeds the set number, a method for providing an open API service for autonomous driving data in response to a service error to the client. The method according to claim 1,
The method of providing an open API service for autonomous driving data in which the relay server executes the open API service, and the execution result responds to the client through the first server. The method according to claim 1,
A method of providing an open API service for autonomous driving data, in which a server having a relatively low availability and a high response probability among the plurality of servers is set as the relay server. The method according to claim 1,
When the availability of the first server is less than the reference value, the first server executes the open API service to the client and responds to the client. The method according to claim 1,
The server transmits availability information including at least one of each resource, log, thread, traffic, and service usage to the shared data management center at preset time intervals. A method of providing an open API service for autonomous driving data. 9. The method of claim 8,
The shared data management office converts the availability information received from the servers into the availability and stores the open API service providing method for autonomous driving data. a shared data management center in which autonomous driving data including maps and road-related attribute information with precision and availability of a plurality of servers are stored in advance;
a server communication unit provided in each of the plurality of servers to receive a request signal for an open API service of the autonomous driving data from a client or to transmit and receive a signal for requesting relay of the open API service between the servers;
a server determination unit provided in each of the servers, inquiring about availability of the servers, and setting a server to relay the open API service from among the plurality of servers as a relay server according to the availability;
a server control unit provided in each of the servers to execute the open API service for the autonomous driving data stored in the shared data management center or to request relay of the open API service to the relay server;
If the availability of the relay server is equal to or greater than a reference value, the server determination unit compares the number of passing nodes, which is the number of servers that received and passed through the relay request for the open API service, with a preset number,
If the number of via nodes is less than or equal to the set number, the relay server inquires again the availability of the plurality of servers stored in advance in the shared data management center,
An open API service providing system for autonomous driving data in which the relay server resets another server among the plurality of servers as a new relay server according to the availability. 11. The method of claim 10,
a data communication unit provided in the shared data management office to communicate with the servers;
a data collection unit provided in the shared data management center to collect the autonomous driving data and availability information of the servers;
a data analysis unit that converts the availability information collected by the data collection unit into availability according to a preset standard;
and a data storage unit configured to store the autonomous driving data, the availability information, and the availability.

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