KR101720167B1 - Beacon adapter and data exchange system employing the same - Google Patents

Abstract

The present invention relates to an adapter and a data exchange system using the adapter. An adapter according to an embodiment of the present invention includes a first communication unit that communicates with a DDS device in which middleware based on a data distribution service is installed and publishes or subscribes a topic including proximity data; A second communication unit that communicates with at least one beacon device and transmits or receives a packet including transmission power data; And a converting unit for converting the proximity data and the transmission power data to each other.

Description

Technical Field [0001] The present invention relates to a beacon adapter and a data exchange system using the beacon adapter.

The present invention relates to a beacon adapter and a data exchange system for exchanging proximity data between Internet of Things devices.

The Internet of things means that things are connected to each other through a wired or wireless network and share information, and various services can be provided through interaction between objects. Here, things include various embedded systems such as household appliances, mobile equipment, and wearable computers. Objects Various communication protocols such as Radio-Frequency Identification (RFID), ZigBee, and Bluetooth are used depending on the physical characteristics and applications of objects on the Internet.

At this time, interactions between objects using the same protocol are possible, but there is a limit to interaction between different protocols. Messaging technologies such as Representational State Transfer (REST), Message Queue Telemetry Transport (MQTT), and Java Message Service (JMS) are used to solve protocol heterogeneity problems. If the broker fails to send and receive messages, messaging itself will fail.

An embodiment of the present invention aims at solving the protocol heterogeneity problem between Internet devices.

An embodiment of the present invention aims to provide an adapter for applying a BLE (Bluetooth Low Energy) based beacon to a thing Internet.

In addition, an embodiment of the present invention aims at lowering the probability of data transmission failure and the transmission complexity between Internet devices.

The objects to be solved by the present invention are not limited to the above-mentioned problems, and the matters not mentioned above can be clearly understood by those skilled in the art from the present specification and the accompanying drawings .

An adapter according to an embodiment of the present invention includes a first communication unit for communicating with a DDS device having a middleware based on a data distribution service and publishing or subscribing a topic including proximity data, A second communication unit for communicating with at least one beacon device and transmitting or receiving a packet including transmission power data, and a conversion unit for converting the proximity data and the transmission power data to each other.

The DDS device communicates with at least one Internet appliance, and the proximity data may indicate a physical distance between the Internet appliance or the beacon device and the adapter.

The converting unit may convert the topic subscribed in the first communication unit into a packet including the transmission power data and convert the packet received by the second communication unit into a topic including the proximity data.

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The adapter may further include an identifier assigned in advance to the beacon device, and the adapter may further include a step of receiving the proximity data included in the topic based on the identifier based on the identifier, And a verification unit for verifying the verification result.

Wherein the topic subscribed to by the first communication unit further includes an identifier assigned in advance to the thing Internet apparatus or the beacon apparatus and the adapter includes a filtering unit for filtering the topic subscribed by the first communication unit based on the identifier .

The identifier may comprise at least one of a Universally Unique Identifier (UUID) and a detailed identifier pre-assigned by the user of the object Internet device or the beacon device.

A data exchange system according to an embodiment of the present invention includes a beacon device, a matter Internet device using a protocol different from the beacon device, a data distribution service based on the topic Internet device that publishes or subscribes to a topic including proximity data A DDS device in which middleware is installed, and an adapter for exchanging data between the beacon device and the DDS device.

The adapter communicating with the DDS device and issuing or subscribing to a topic containing proximity data, a second communication section in communication with the beacon device for transmitting or receiving a packet including transmission power data, And a conversion unit for converting the transmission power data.

The proximity data may indicate a physical distance between the thing Internet device or the beacon device and the adapter.

According to an embodiment of the present invention, the problem of protocol heterogeneity between object Internet devices can be solved.

According to an embodiment of the present invention, a BLE (Beacon Low Energy) based beacon can be applied to the object Internet.

According to the embodiment of the present invention, the probability of data transmission failure and transmission complexity between object Internet devices may be lowered.

The effects of the present invention are not limited to the above-described effects, and the effects not mentioned can be clearly understood by those skilled in the art from the present specification and the accompanying drawings.

1 is a block diagram of an adapter according to an embodiment of the present invention and an exemplary diagram illustrating a configuration of a data exchange system.
2 is a diagram for explaining packets transmitted and received in a data exchange system according to an embodiment of the present invention.
3 is a diagram for explaining a topic transmitted and received in a data exchange system according to an embodiment of the present invention.
4 and 5 are views for explaining an example in which a data exchange system according to an embodiment of the present invention is utilized.

Other advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims.

Unless defined otherwise, all terms (including technical or scientific terms) used herein have the same meaning as commonly accepted by the generic art in the prior art to which this invention belongs. Terms defined by generic dictionaries may be interpreted to have the same meaning as in the related art and / or in the text of this application, and may be conceptualized or overly formalized, even if not expressly defined herein I will not.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. As used herein, the terms' comprise 'and / or various forms of use of the verb include, for example,' including, '' including, '' including, '' including, Steps, operations, and / or elements do not preclude the presence or addition of one or more other compositions, components, components, steps, operations, and / or components. The term 'and / or' as used herein refers to each of the listed configurations or various combinations thereof.

It should be noted that the terms such as '~', '~ period', '~ block', 'module', etc. used in the entire specification may mean a unit for processing at least one function or operation. For example, a hardware component, such as a software, FPGA, or ASIC. However, '~ part', '~ period', '~ block', '~ module' are not meant to be limited to software or hardware. Modules may be configured to be addressable storage media and may be configured to play one or more processors. ≪ RTI ID = 0.0 >

Thus, by way of example, the terms 'to', 'to', 'to block', 'to module' refer to components such as software components, object oriented software components, class components and task components Microprocessors, circuits, data, databases, data structures, tables, arrays, and variables, such as processors, subroutines, segments of program code, drivers, . The functions provided in the components and in the sections ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ' , '~', '~', '~', '~', And '~' modules with additional components.

The adapter according to an embodiment of the present invention includes a conversion unit for converting packets and topics, thereby making it possible to utilize a BLE (Beacon Low Energy) based beacon device for the object Internet. Further, the data exchange system including the adapter according to the embodiment of the present invention may be configured as a publication / subscription method based on a data distribution service, thereby reducing a messaging failure probability and a data transmission complexity.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings attached hereto.

1 is a view for explaining a data exchange system 200 to which an adapter 100 and an adapter 100 according to an embodiment of the present invention are applied.

As shown in FIG. 1, an adapter 100 according to an embodiment of the present invention may communicate with at least one beacon device 11 to transmit or receive packets. The at least one beacon device 11 may be included in one beacon area.

Also, the adapter 100 may communicate with the DDS device 13 in which the middleware based on the data distribution service is installed, and may publish or subscribe the topic. The DDS device 13 is capable of communicating with at least one matter Internet device 12 and each of the thing Internet devices 12 can either issue a topic to the DDS device 13 or receive a required topic from the DDS device 13 You can subscribe to. The thing Internet device 12 can use a different protocol from the beacon device 11. [ However, by applying the adapter 100 in accordance with an embodiment of the present invention, the heterogeneity problem of the protocol can be solved.

The data exchange system 200 according to the embodiment of the present invention can lower the messaging failure probability through a distribution structure of a publication / subscription scheme by using the middleware based on the data distribution service installed in the DDS device 13. [

Referring again to FIG. 1, an adapter 100 according to an embodiment of the present invention may include a first communication unit 110, a second communication unit 120, and a conversion unit 130. The first communication unit 110 communicates with the DDS device 13 and can issue or subscribe to topics including proximity data. The proximity data represents the physical distance to a predetermined reference point of the object Internet apparatus and may be a physical distance between the object Internet apparatus 12 or the beacon apparatus 11 and the adapter 100. [ The second communication unit 120 may communicate with the beacon apparatus 11 and may transmit or receive a packet including Tx power data.

The conversion unit 130 may convert the proximity data and the transmission power data. The proximity data and the transmission power data may be transformed according to Equation 1 below when the adapter is applied to a free space model.

RSSI (Received Signal Strength Indicator) is a constant determined according to the adapter, txPower represents the transmission power data, d represents the physical distance, and n may be 2. The above Equation 1 can be expressed in Java language as follows.

Math.pow (10d, ((double) txPower-RSSI) / (10 * 2))

The transforming unit 130 transforms proximity data and transmission power data according to Equation (1), thereby converting a topic and a packet to solve a protocol heterogeneity problem.

2 is a diagram illustrating a structure of a packet transmitted and received in a data exchange system according to an embodiment of the present invention. The packet received from the beacon device 11 or transmitted to the beacon device 11 may be a BLE Advertising Packet as shown in FIG. The BLE Advertising Packet may include beacon packets including Tx power data. The BLE Advertising Packet may include checksum data to detect transmission errors.

As shown in FIG. 2, the beacon packet may be composed of Prefix, UUID, Major ID, Minor ID, and Tx power. The prefix is a fixed value representing that the packet is a beacon packet. The UUID is a universally unique identifier, which may represent the company that manufactured the device. The Major ID and the Minor ID are detailed identifiers and can be assigned by the user of the apparatus. Tx power represents the transmit power of the device.

FIG. 3 is an IDL (Interface Description Language) representation of a topic transmitted and received in a data exchange system according to an embodiment of the present invention. uuid is the identifier of the company that manufactured the device, and majorID and minorID may be the detailed identifiers assigned by the user. Distance represents proximity data.

Hereinafter, a process of publishing a topic including the proximity data to the middleware based on the data distribution service installed in the DDS device 13 will be described in detail with reference to FIGS.

The second communication unit 120 receives a packet including transmission power data from the beacon apparatus 11. [ The received packet may be in the form shown in FIG. The converting unit 130 may extract data on UUID, Major ID, Minor ID, and Tx power in the received packet. The conversion unit 130 calculates distance, i.e., proximity data using Tx power and RSSI value. The converting unit 130 transforms the packet received from the beacon unit 11 into a topic by converting the extracted UUID, Major ID, Minor ID, and calculated proximity data into a topic instance. At this time, the converted topic may be specified as IDL as shown in FIG. The first communication unit 110 may issue the topic generated by the conversion unit 130 to the DDS device 13. [ The object Internet device 12 can obtain the proximity data by subscribing the topic from the DDS device 13 even if the object communication device 12 uses a different communication protocol than the beacon device 11. [ Referring to FIG. 1, an adapter 100 according to an embodiment of the present invention may further include a verification unit 150. The topic generated by converting the packet in the conversion unit 130 may further include an identifier previously assigned to the beacon device. At this time, the verification unit 150 can verify the proximity data included in the topic based on the identifier generated by the conversion unit 130. Specifically, based on the identifier, the verification unit 150 determines whether data transmitted first by the beacon apparatus that transmitted the proximity data, data that is transmitted periodically, or data that is no longer transmitted can do. If it is determined that the data is not transmitted any more, the beacon device may be damaged, or the beacon device may be out of the beacon area.

Hereinafter, with reference to FIG. 1 to FIG. 3, the process of the adapter 100 subscribing from the data distribution service-based middleware installed in the DDS device 13 to the beacon device 11, .

The first communication unit 110 subscribes to the topic from the DDS device 13. [ The subscribed topic may be specified as shown in FIG. Referring to FIG. 1, an adapter 100 according to an embodiment of the present invention may further include a filtering unit 140. The filtering unit 140 may filter the topics subscribed to by the first communication unit 110 based on identifiers such as UUID, Major ID, and Minor ID. For example, the filtering unit 140 may transmit only the topic of the device to which the proximity data is to be acquired to the conversion unit 130 based on the identifier. The converting unit 130 divides the subscribed topic into uuid, majorId, minorId, and distance. The converting unit 130 may calculate transmission power using proximity data, i.e., distance and RSSI. The converting unit 130 packetizes the uuid, majorId, minorId, and calculated transmit power of the topic to convert the subscribed topic from the DDS device 130 into a packet. The converted packet may be in the form shown in FIG. The second communication unit 120 may transmit the packet generated by the conversion unit 130 to the beacon device 11. [ This allows the beacon device 11 to obtain distance information from the object Internet device 12 using a different protocol.

FIG. 4 illustrates an exemplary embodiment in which a train proximity service is provided at a train station utilizing an adapter in accordance with an embodiment of the present invention. The beacon device on the train continuously transmits the packets, and the beacon device at each boarding gate receives the packets. The beacons at each boarding gate issue topics with data distribution services through adapters and passengers inside the train stations subscribe to topics from data distribution services using the Internet devices, . In addition, the adapter according to an embodiment of the present invention may be used to secure the safety of passengers by sharing proximity data between the object Internet device of passengers and the beacon device of each boarding gate.

 FIG. 5 illustrates an exemplary embodiment in which a logistics automation service is provided utilizing an adapter according to an embodiment of the present invention. The cargo (object Internet device) continuously publishes topics including proximity data as middleware based on data distribution service. The beacon device on the distribution rail receives close data of the cargoes from the data distribution service through the adapter. The received proximity data may be shared among a plurality of beacon devices installed in the distribution rail. Based on the shared proximity data, it can be used to determine the amount of movement on the move and adjust the rail speed.

It is to be understood that the above-described embodiments are provided to facilitate understanding of the present invention, and do not limit the scope of the present invention, and it is to be understood that various modified embodiments may be included within the scope of the present invention. For example, each component shown in the embodiment of the present invention may be distributed and implemented, and conversely, a plurality of distributed components may be combined. Therefore, the technical protection scope of the present invention should be determined by the technical idea of the claims, and the technical protection scope of the present invention is not limited to the literary description of the claims, The invention of a category.

100: Adapter
110: first communication section
120: second communication section
130:
140:
150:
200: Data exchange system

Claims (7)

A first communication unit that communicates with a DDS device in which middleware based on a data distribution service (DDS) is installed and issues or subscribes a topic including proximity data;
A second communication unit that communicates with at least one beacon device and transmits or receives a packet including transmission power data; And
And a conversion unit for converting the proximity data and the transmission power data,
Wherein the DDS device is in communication with at least one Internet appliance,
Wherein the proximity data indicates a physical distance between the thing Internet device or the beacon device and the adapter.
The method according to claim 1,
Wherein,
And converts the topic subscribed by the first communication unit into a packet including the transmission power data and converts the packet received by the second communication unit into a topic including the proximity data.
delete 3. The method of claim 2,
Wherein the topic generated by converting the packet in the conversion unit further includes an identifier previously assigned to the beacon device,
The adapter includes:
And a verifying unit for verifying the proximity data included in the topic based on the identifier in the topic generated by the converting unit.

The method according to claim 1,
Wherein the topic to which the first communication unit subscribes further includes an identifier previously assigned to the object Internet apparatus,
The adapter includes:
And a filtering unit for filtering the topic subscribed to by the first communication unit based on the identifier.
6. The method of claim 5,
Wherein the identifier comprises at least one of a Universally Unique Identifier (UUID) and a detailed identifier pre-assigned by the user of the thing Internet device or the beacon device.
Beacon device;
An object Internet device using a protocol different from the beacon device;
A DDS device having middleware based on a data distribution service in which the object Internet apparatus issues or subscribes a topic including proximity data; And
And an adapter for exchanging data between the beacon device and the DDS device,
Said adapter comprising:
A first communication unit communicating with the DDS device and issuing or subscribing to a topic including proximity data;
A second communication unit that communicates with the beacon apparatus and transmits or receives a packet including transmission power data; And
And a conversion unit for converting the proximity data and the transmission power data,
Wherein the proximity data is indicative of a physical distance between the thing Internet device or the beacon device and the adapter.

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