KR20190082646A - Interface management system using proxy server - Google Patents

Abstract

The present invention relates to an interface management system using a relay device. According to an embodiment of the present invention, the interface management system using a relay device comprises: at least one interface device having at least one interface middleware; at least one management device for managing the at least one interface device; and a relay device for relaying a connection between the at least one interface device and the at least one management device. The relay device determines, when a JMX request is received from the at least one management device, whether the received JMX request is a one-time command or a periodic command, generates a thread if determined as a periodic command, and periodically requests information corresponding to the JMX request, which is the periodic command, to the at least one interface device. Since the management device is not affected even if an interface device or interface middleware instance is added, it is possible to easily expand objects to be managed.

Description

[0001] The present invention relates to an interface management system using a proxy server,

The present invention relates to an interface management system, and more particularly, to an interface management system using a relay device that manages a connection between a plurality of interface devices and a plurality of management devices using a relay device in a smart factory implementation.

Smart factory is an intelligent production factory that improves productivity, quality and customer satisfaction by applying information and communication technology (ICT) that combines digital automation solution to production process such as design, development, manufacturing, distribution and logistics. The Internet (IoT) is installed in my facilities and machines, and process data is collected in real time and data-based decision making is done to maximize productivity.

To implement such a smart factory, a plurality of interface devices providing connection means for various protocols of heterogeneous devices of Level 0 ~ 2 and a plurality of management devices for monitoring and managing these interface devices are interlocked.

1, each of the management apparatuses 300-1, 300-2, ..., 300-m is provided with respective interface apparatuses 100-1, 100-2, ..., 300- ..., 100-n) to monitor the corresponding interface device and provide information requested by the user. When the interface device is provided with interface middleware implemented in Java, the management device uses Java Management Extensions (JMX), which is a standard API (Application Programming Interface) of Java, Were monitored and managed. For reference, JMX is provided as a standard in the Java Virtual Machine (JVM). It is a connector used for connection and provides Remote Method Invocation (RMI).

Therefore, in the case of the related art, each management device must individually implement RMI functions to manage respective interface middleware instances, and accordingly, when there are a plurality of management devices (for example, a plurality of users Requires a large number of connections between a plurality of management devices and a plurality of interface devices.

However, when the connection is implemented by implementing the RMI function, the resource (CPU, memory, etc.) is consumed in a large amount due to the overhead due to the characteristic of RMI and garbage collection processing of the remote object (Object) The RMI function is implemented between the management apparatus and the plurality of interface apparatuses, respectively, and the performance is greatly deteriorated when a large number of connections are made.

In particular, when there is a large load on the interface middleware in a periodical monitoring request from a large number of management devices, and a firewall exists between the interface middleware and the management device, a communication port used in each connection must be opened. there was.

Korean Patent Registration No. 10-0874652 Korean Patent Publication No. 10-2017-0090114

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and method for efficiently connecting a plurality of management apparatuses and a plurality of interface apparatuses, And an interface management system using the relay device.

It is another object of the present invention to provide an interface management system using a relay device that collects resource responses from a corresponding interface device and provides one resource response to the corresponding management device when a resource request is made from any management device.

It is still another object of the present invention to provide an interface management system using a relay device for efficiently processing a periodic resource request or a duplicated resource request transmitted from a plurality of management devices to reduce the load of the interface middleware.

It is still another object of the present invention to provide an interface management system using a relay device that can easily expand an object of management and minimize security by minimizing remote connection.

To this end, an interface management system using a relay apparatus according to an aspect of the present invention includes at least one interface device for interfacing resource information; At least one management device receiving resource information from the at least one interface device; And a relay device for relaying a connection between the at least one interface device and the at least one management device, wherein when the resource request is received from any one of the at least one management devices, A request is transmitted to the at least one interface device, and when resource responses are received from the at least one interface device, a single resource response to the resource request is generated to provide the resource request to the management device.

Preferably, the relay apparatus periodically provides a response to the resource request to the management apparatus that made the periodic resource request when the periodic resource request is received from any one of the at least one management apparatuses.

Preferably, when the relay device receives the same resource request as the previously processed resource request from the arbitrary management device, the relay device transmits a response corresponding to the previously processed resource request to the arbitrary management device.

According to another aspect of the present invention, there is provided a relay apparatus for managing an interface, comprising: an interface management unit for managing at least one interface apparatus; A management apparatus connection unit for individually communicating with at least one management apparatus to receive a resource request from each management apparatus and to provide a resource response to the management apparatus in response to the resource request; A resource management unit for managing a resource request and a response to a resource request of each management apparatus; And a resource generator for generating a resource response for the resource request when resource responses are received from the at least one interface device.

Preferably, the resource management unit transmits a response corresponding to the previously processed resource request to the arbitrary management apparatus when receiving the same resource request as the resource request previously processed from the arbitrary management apparatus.

Preferably, the relay apparatus for interface management further includes a distribution management unit for transmitting a response to the resource request to the at least one management apparatus when a periodic resource request is received or a request identical to the resource request is received do.

Wherein the distribution management unit generates a web socket at the request of the resource management unit and transmits access information for the web socket to the resource management unit, and the resource management unit transmits access information for the web socket to the management apparatus via the management apparatus connection unit To the at least one management apparatus.

According to the present invention, since a plurality of interface devices are managed through a relay device, even if an interface device or an interface middleware instance is added, the management object is not affected even if an instance is added. Therefore, it is easy to expand the management object, Can be improved.

According to the present invention, when there is a resource request from an arbitrary management device, resource responses are collected from the interface device and a single resource response is provided to the corresponding management device, thereby collectively processing the resource request, It is possible to reduce the load of the battery.

According to the present invention, when a periodic resource request is received from an arbitrary management apparatus, a thread is generated to process a periodic resource request, and the management apparatus provides web socket access information, It is possible to efficiently provide periodicity information while reducing resource consumption by providing a response corresponding to a periodic resource request in a Server Push method.

According to the present invention, in the case of additionally receiving the same resource request as a resource request which has been processed from an arbitrary management device, the relay device does not request the interface middleware but sends a response corresponding to the previously processed resource request to the corresponding management device The load of the interface middleware can be minimized, and the performance degradation can be prevented.

1 is a diagram illustrating an interface management method according to the related art.
2 is a diagram illustrating a smart factory architecture to which the present invention may be applied.
3 is a diagram illustrating an interface management method according to the present invention.
4 is a configuration diagram of an interface management system using a relay apparatus according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention unnecessarily obscure.

2 is a diagram illustrating a smart factory architecture to which the present invention can be applied.

2, the smart factory architecture to which the present invention can be applied includes a device layer 10, a network layer 20, a platform layer 30, an application layer 40, And the like.

The device layer 10 includes a variety of instruments, sensors, actuators, and the like for collecting micro data generated in each process, and a P / C (Process / Computer (PLC), Programmable Logic Controller (PDC), Process Data Server (PDS), and Distributed Control System (DCS).

The network layer 20 is a layer including a network cable, a gateway, a router, and a wireless access point (AP) for transmitting data generated in the device layer 10 to the platform layer 30.

The platform layer 30 receives and processes a large amount of regular / irregular micro data collected in the device layer 10, processes it in real time, judges whether there is an abnormality in facilities, materials, etc., It is an IT platform for storing and storing data in a data repository and providing a variety of inquiry and analysis services for stored data.

More specifically, the platform layer 30 may include a function that takes charge of, for example, an interface 31, an analysis 32, a service 33, a security 34, a management 35, A functional part or a system.

The interface system 31 provides connection means for various protocols of heterogeneous devices at levels 0 to 2, analyzes the layout of the data, and performs preprocessing on micro data such as item standardization .

The analysis system 32 analyzes and analyzes a variety of micro data and macro data such as a real-time processing system to support real-time decision making of a work site and operation-equipment-quality Non-real-time processing systems, large data storage for storing large amounts of microdata and macro data, and the like.

The service system 33 is a structure for reusing standardized processing processes and business standards as services. It is a repository of business know-how and facilitates linkage between planning, execution and control through connection between services defined as functional units .

The security system 34 performs authentication, authorization, and access control for the user, and manages security for the data itself and security for the transmission path.

The management system 35 manages individual systems belonging to the platform layer 30, UI / UX management, configuration file management for devices for data collection, individual system monitoring of each system, , A system that provides processing performance and integrated monitoring of the entire system.

On the other hand, the application layer 40 is a layer that processes and provides screens and data that are required for the user on the basis of the platform layer 30.

For reference, the interface management system using the relay device according to the present invention can be applied to the platform layer (more specifically, the interface and management system) of the smart factory architecture described above, but is not limited thereto.

3 is a diagram illustrating an interface management method according to the present invention. 4 is a configuration diagram of an interface management system using a relay apparatus according to an embodiment of the present invention.

3, an interface management system using a relay apparatus according to an embodiment of the present invention includes at least one interface apparatus 100-1, 100-2, ..., 100-n, at least one management apparatus 300-1, 300-2, ..., 300-m, and a repeater 200, and the like.

The interface devices 100-1, 100-2, ..., 100-n are provided with interface middleware to provide connection means for various protocols of heterogeneous devices of level 0 to 2, And controls these devices to collect data. The interface middleware can be implemented based on, for example, a JMX architecture, which is a standard API of Java, and can include status information of an instance (e.g., CPU usage, memory usage, normal status, thread status) (Eg Start, Stopped, and Pause), and controls the collection path (eg, Start (Start), Stop , Stop, Suspend, Resume, Restart). For reference, it is shown that one interface device is provided with one interface middleware in the drawing, but this is for convenience of description, and a plurality of interface middleware may be provided in one interface device.

The management apparatuses 300-1, 300-2, ..., and 300-m perform functions that allow the user to monitor and control the interface middleware through a UI (User Interface). In the case of the present invention, when monitoring or management of an arbitrary interface device (interface middleware) is requested from the user through the UI, the management devices 300-1, 300-2, ..., 300- (E.g., a JMX request) to the relay device 200 (interface middleware).

The relay device 200 is connected between the plurality of interface devices 100-1, 100-2, ..., 100-n and the plurality of management devices 300-1, 300-2, ..., 300-m For example, a proxy server, in the form of a proxy server. According to one embodiment of the present invention, the relay apparatus 200 can be implemented based on, for example, a JMX architecture, which is a standard API of Java, and can be implemented using an HTTP (Hyper Text Transfer Protocol) 100-2, ..., 100-n and a plurality of management apparatuses 300-1 to 300-n using a JSON (JavaScript Object Notation) message format, -1, 300-2, ..., 300-m.

4, a relay apparatus 200 according to an exemplary embodiment of the present invention includes an interface management unit 210, a resource management unit 220, a resource generation unit 230, a cache 240, a management device connection unit 250, A distribution management unit 260, and the like.

The interface management unit 210 manages one or more interface devices 100-1, 100-2, ..., 100-n. For example, the interface management unit 210 manages connection information and connection for an instance of the interface middleware provided in the one or more interface apparatuses 100-1, 100-2, ..., 100-n, If there is a resource request for at least one interface device from the resource management unit 220, the resource management unit 220 receives responses to the resource request from the corresponding interface device and transmits the response to the resource management unit 220.

The resource management unit 220 manages the interface management unit 210, the resource generation unit 230, the distribution management unit 260 and the like, and arbitrary management apparatuses 300-1, 300-2, ..., 300- (Resource response corresponding to the resource request) through the management apparatus connection unit 250 and / or the distribution management unit 260, and transmits the processing result (resource response corresponding to the resource request) 300-1, 300-2, ..., 300-m.

For example, when a resource request from an arbitrary management apparatus is transmitted through the management apparatus connection unit 250, the resource management unit 220 transmits a resource request to the at least one interface apparatus through the interface management unit 210. [ When the resource management unit 220 receives resource responses from at least one interface device through the interface management unit 210, the resource management unit 220 collects these responses through the resource generation unit 230 to generate one resource response, And transmits the resource response to the corresponding management apparatus that has transmitted the resource request through the management apparatus connection unit 250 and / or the distribution management unit 260.

According to a preferred embodiment of the present invention, the resource management unit 220 receives a resource request from any of the management apparatuses 300-1, 300-2, ..., 300-m via the management apparatus connection unit 250 If the resource request is a one-time command, it is determined whether the resource request is a one-time command or a periodic command. If the command is a one-time command, a response corresponding to the one-time resource request is requested to the interface management unit 210. If the command is a periodic command, And periodically requests the interface management unit 210 to respond to the resource request. When the interface management unit 210 receives and delivers responses corresponding to the resource request from the interface middleware instance, the resource management unit 220 collects the responses through the resource generation unit 230 and generates one resource response And transmits it to the management apparatus through the management apparatus connection unit 250 or the distribution management unit 260. In addition, the resource management unit 220 instructs the resource generation unit 230 to store a resource response in the cache 240 if necessary, and when there is an identical resource request from another management apparatus, the resource management unit 220 does not request the interface middleware, (230) and transmits the result of the previous processing (resource response) to the corresponding management apparatus.

The resource generating unit 230 receives and collects resource responses collected from one or more of the interface devices 100-1, 100-2, ..., 100-n through the resource managing unit 220, . In addition, the resource generating unit 230 can collect resources collected from one or more of the interface devices 100-1, 100-2, ..., 100-n in a hierarchical structure of middleware, collection information, (240).

The cache 240 stores resources under the control of the resource generation unit 230 in a hierarchical structure of middleware, collection information, collection path, and collection device.

The management apparatus connection unit 250 is connected to one or more management apparatuses 300-1, 300-2, ..., 300-m based on, for example, an HTTP protocol. Upon receiving a resource request from any of the management apparatuses 300-1, 300-2, ..., 300-m, the resource management unit 220 transmits the resource request to the resource management unit 220, (Resource response) to the management apparatuses 300-1, 300-2, ..., 300-m.

The distribution management unit 260 generates a Web socket for responding to the periodic resource request and transmits the web resource to the management apparatuses 300-1, 300-2, ..., and 300-m to access the web socket. And provides connection information for the web socket through the resource management unit 220 and the management device connection unit 250. Then, the management apparatuses 300-1, 300-2, ..., 300-m are connected to the web socket of the distribution management unit 260 using the connection information for the web socket, and then the distribution management unit 260 And transmits a response corresponding to the periodic resource request to the management apparatuses 300-1, 300-2, ..., and 300-m currently connected through a server push via a web socket. Then, the distribution management unit 260 removes the web socket when all of the management apparatuses 300-1, 300-2, ..., and 300-m are disconnected.

Hereinafter, an interface management method using a relay apparatus according to an embodiment of the present invention will be described.

When the user requests management of an arbitrary interface device (interface middleware) through the UI, the management apparatuses 300-1, 300-2, ..., 300-m send a one-time Or a periodic resource request (e.g., a JMX request) to the relay apparatus 200.

Then, the management unit connection unit 250 of the relay apparatus 200 receives the resource request and delivers it to the resource management unit 220. [ Then, the resource management unit 220 transmits a resource request to the at least one interface device 100-1, 100-2, ..., 100-n through the interface management unit 210. [ The resource management unit 220 receives resource responses from at least one interface device 100-1, 100-2, ..., 100-n through the interface management unit 210, And transmits the generated resource response to the corresponding management apparatus that has transmitted the resource request through the management apparatus connection unit 250 and / or the distribution management unit 260. [

When the delivered resource request is a periodic command, the resource manager 220 generates a thread and transmits the thread to the interface apparatuses 100-1, 100-2, ..., 100-n Periodically requests a response corresponding to the periodic resource request, collects the received responses through the resource generating unit 230, and stores the collected responses in the cache 240. [ The resource management unit 220 requests the distribution management unit 260 to create a Web socket and receives connection information about the web socket from the distribution management unit 260 and manages the connection through the management device connection unit 250 To the devices 300-1, 300-2, ..., 300-m.

Then, the management apparatuses 300-1, 300-2, ..., and 300-m are connected to the web socket of the distribution management unit 260 using the access information for the web socket, And transmits a response corresponding to the resource request to the management apparatuses 300-1, 300-2, ..., 300-m through the web socket in a server push manner.

If the same periodicity resource request is received from another management apparatus, the resource management unit 220 transmits the web socket access information of the distribution management unit 260 to the management apparatus via the management apparatus connection unit 250, The management apparatus is connected to the web socket of the distribution management unit 260 and periodically receives a response corresponding to the periodic resource request. Thus, according to the present invention, when the same command is received, the information provided to the interface middleware is reused without additional request, and transmitted to the management apparatus, thereby minimizing the load on the interface middleware.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled 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. ≪ / RTI > are to be understood in all respects only as illustrative and not restrictive.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. .

Claims (11)

An interface management system using a relay apparatus,
At least one interface device for interfacing resource information;
At least one management device receiving resource information from the at least one interface device; And
And a relay device for relaying a connection between the at least one interface device and the at least one management device,
Wherein the relay device transmits the resource request to the at least one interface device when a resource request is received from any of the management devices of the at least one management device, and when resource responses are received from the at least one interface device, And generates a resource response for the request to provide the resource request to the one management apparatus. The method according to claim 1,
The relay apparatus includes:
And a resource management unit for periodically providing a response to the resource request to the management apparatus that has made the periodical resource request when the periodic resource request is received from any one of the management apparatuses of the at least one management apparatus. Interface management system used. The method according to claim 1,
The relay apparatus includes:
And a resource management unit for transmitting a response corresponding to the previously processed resource request to the arbitrary management apparatus upon receiving a resource request identical to a resource request previously processed from an arbitrary management apparatus, Interface management system used. The method according to claim 1,
The relay apparatus includes:
And a resource generator for generating a resource response to the resource responses when resource responses are received from the at least one interface device. The method according to claim 1,
The relay apparatus includes:
And a management apparatus connection unit for receiving a resource request for each of the at least one management apparatuses and providing a resource response for each of the at least one management apparatuses. 4. The method according to any one of claims 1 to 3,
Wherein the at least one interface device manages at least one of interface status information, gather path statistical information, and collection path status information. As a relay device for interface management
An interface management unit for managing at least one interface device;
A management apparatus connection unit for individually communicating with at least one management apparatus to receive a resource request from each management apparatus and to provide a resource response to the management apparatus in response to the resource request;
A resource management unit for managing a resource request and a response to a resource request of each management apparatus; And
And a resource generator for generating a resource response for the resource request when resource responses are received from the at least one interface device. 8. The method of claim 7,
Wherein the resource management unit transmits a response corresponding to the previously processed resource request to the arbitrary management apparatus when receiving the same resource request as the previously processed resource request from an arbitrary management apparatus Relay device. 8. The method of claim 7,
Further comprising a distribution manager for transmitting a response to the resource request to the at least one management device when a periodic resource request is received or a request identical to a resource request that has been processed previously is received. 10. The method of claim 9,
Wherein the distribution management unit generates a web socket at the request of the resource management unit, transmits connection information for the web socket to the resource management unit,
Wherein the resource management unit transmits connection information for the web socket to the at least one management apparatus through the management apparatus connection unit. 11. The method according to any one of claims 7 to 10,
Wherein the resource generator manages the collection information, the collection path, and the collection device in a hierarchical structure to generate one response to the resource responses.

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