KR101869154B1 - BEACON SERVICE PROVIDING METHOD FOR SMART DEVICES BASED ON CoAP MESSAGE - Google Patents

Abstract

A method for providing a beacon service based on a CoAP message for a plurality of smart devices includes the steps of: determining a beacon transmitter to use two or more smart devices among a plurality of smart devices in communication coverage using a CoAP message as a service group; Determining a single smart device as a representative device, the server requesting second representative information to the representative device using a CoAP message, and the server transmitting the second attribute information to the smart device belonging to the service group Receiving second attribute information collected from the device and transmitting the content determined by the server based on the second attribute information to the representative device.

Description

TECHNICAL FIELD [0001] The present invention relates to a beacon service based on a CoAP message for a plurality of smart devices,

The following description relates to a method for providing a beacon service for a plurality of smart devices.

Recently, beacon service has attracted attention in the market. A beacon is a short-range communication technology that uses Bluetooth communication to communicate information and locate smartphone users. The beacon can communicate with the terminal (smartphone) up to a radius of up to 50 meters in the building, so instant guidance service or mobile coupon can be provided when visitors enter the specific place or store where the beacon is installed without having to tag the terminal.

GPS has a tolerance of several tens of meters, while a beacon is capable of precise position measurement up to 5 cm, which is particularly advantageous for locating smartphone users in the room. For example, even if you are in the same building, you can receive other information and coupons depending on the location, and store information can be checked in the direction of walking.

Korean Patent No. 10-1518400

A technique described below is to provide a beacon service to a plurality of smart devices using a CoAP message.

A method for providing a beacon service based on a CoAP message for a plurality of smart devices includes the steps of: determining a beacon transmitter to use two or more smart devices among a plurality of smart devices in communication coverage using a CoAP message as a service group; Determining a single smart device as a representative device, the server requesting second representative information to the representative device using a CoAP message, and the server transmitting the second attribute information to the smart device belonging to the service group Receiving second attribute information collected from the device and transmitting the content determined by the server based on the second attribute information to the representative device.

The techniques described below provide a beacon service to a plurality of smart devices that form a group using the standard redefined CoAP protocol in the IETF. The techniques described below provide a common beacon service that matches a plurality of users.

1 is an example of a conventional beacon service.
Figure 2 is an example of an architecture for the CoAP protocol.
3 is an example of a system for providing a beacon service to a plurality of smart devices.
4 is an example of a procedure for providing a beacon service for a plurality of smart devices.
5 is an example of a CoAP message.

The following description is intended to illustrate and describe specific embodiments in the drawings, since various changes may be made and the embodiments may have various embodiments. However, it should be understood that the following description does not limit the specific embodiments, but includes all changes, equivalents, and alternatives falling within the spirit and scope of the following description.

7 Terms such as first, second, A, B, etc. may be used to describe various components, but the components are not limited by the terms, and only one component may be distinguished from other components It is used only for the purpose. For example, without departing from the scope of the following description, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

As used herein, the singular " include "should be understood to include a plurality of representations unless the context clearly dictates otherwise, and the terms" comprises & , Parts or combinations thereof, and does not preclude the presence or addition of one or more other features, integers, steps, components, components, or combinations thereof.

Before describing the drawings in detail, it is to be clarified that the division of constituent parts in this specification is merely a division by main functions of each constituent part. That is, two or more constituent parts to be described below may be combined into one constituent part, or one constituent part may be divided into two or more functions according to functions that are more subdivided. In addition, each of the constituent units described below may additionally perform some or all of the functions of other constituent units in addition to the main functions of the constituent units themselves, and that some of the main functions, And may be carried out in a dedicated manner.

Also, in performing a method or an operation method, each of the processes constituting the method may take place differently from the stated order unless clearly specified in the context. That is, each process may occur in the same order as described, may be performed substantially concurrently, or may be performed in the opposite order.

1 is an example of a conventional beacon service. Figure 1 is an example of a system 100 that provides a beacon service. A system 100 for providing a beacon service includes a beacon transmitter 110, smart devices 120A, 120B, 120C, and 120D, and a service server 150. [ Figure 1 illustrates, by way of example, four smart devices.

The beacon transmitter 110 corresponds to a signal transmitter disposed at a certain point. The beacon transmitter 110 typically transmits certain information via Bluetooth (BLE) communication to a smart device (such as 120A) entering its coverage.

The smart devices 120A, 120B, 120C, and 120D are devices such as a smart phone, a tablet PC, and the like that are capable of short range communication such as beacon transmitter 110 and Bluetooth. The smart devices 120A, 120B, 120C, and 120D are devices that can be connected to a data packet network (such as the Internet) via a WiFi or mobile communication network.

The service server 150 is a device that transmits certain data contents to the smart devices 120A, 120B, 120C and 120D via the Internet. The service server 150 may provide contents such as coupons, publicity videos, music streaming, video streaming, etc. to the smart devices 120A, 120B, 120C and 120D as user terminals.

The procedure flow of the beacon service is briefly described. The smart devices 120A, 120B, 120C and 120D assume that an application for receiving the beacon service is installed. The beacon transmitter 110 periodically or continuously transmits a beacon message. The beacon message includes a certain identifier (ID). When the smart devices 120A, 120B, 120C, and 120D enter the coverage of the beacon transmitter 110, they receive a beacon message.

The smart devices 120A, 120B, 120C, and 120D receiving the beacon message including the identifier (ID) transmit the identifier (ID) to the service server 150 via the Internet. Upon receiving the ID, the service server 150 transmits the content corresponding to the ID to each of the smart devices 120A, 120B, 120C, and 120D.

The content providing method described below uses the CoAP protocol. The Internet Engineering Task Force (IETF) is developing a communications protocol for object communication (M2M, IoT). The IETF CORE Working Group is creating CoAP, a web-based protocol for resource-constrained M2M environments. Currently, CoAP is registered as an RFC document. CoAP is a UDP-based protocol. The UDP feature does not guarantee delivery, as TCP guarantees delivery of the data. Therefore, the broadcasting method is mainly used. Further, CoAP offers an improved approach. For example, Confirmation / Non-Confirmation message and Reset Message. The CoAP defines four message types: confirmable (CON), non-confirmable (NON), acknowledgment (ACK), and reset. A CoAP message is delivered in the interaction of a request and a response.

The CoAP message is encoded in a simple binary format. The message contains a 4 byte fixed header. Followed by a token of length 0 to 8 bytes. Next comes the option. If there is a payload, then it is placed from the end to the end of the datagram.

Figure 2 is an example of an architecture for the CoAP protocol. As shown in FIG. 2, the CoAP is basically divided into a CoAP messaging model that uses UDP, asynchronously exchanges messages between ends, and a request / response model for processing REST data thereon. The messaging model prevents duplicate packets from being transmitted, and the request / response model uses the HTTP methods GET, POST, PUT, and DELETE to represent resources using URIs and HTTP requests and responses. In addition, IETF RFC 7390 proposed UDP-based CoAP multicast protocol.

3 is an example of a system 200 that provides beacon services to a plurality of smart devices. A system 200 for providing a beacon service includes a beacon transmitter 210, a plurality of smart devices 220A, 220B, 220C, and 220D, and a service server 250. [ Figure 3 illustrates four smart devices illustratively. In the system 200 providing the beacon service, the beacon transmitter 210, the smart devices 220A, 220B, 220C and 220D, and the service server 250 basically exchange messages based on the CoAP protocol.

A plurality of smart devices 220A, 220B, 220C and 220D receive a beacon message upon entering the coverage of the beacon transmitter 210. [

The beacon transmitter 210 broadcasts a signal indicating the beacon service. The smart device receiving the signal transmitted by the beacon transmitter 210 transmits a response signal to the beacon transmitter 210. A plurality of smart devices 220A, 220B, 220C, and 220D form a group that receives a common beacon service.

The way in which a plurality of smart devices form a group may vary. (1) For example, a plurality of smart devices may form a group by exchanging messages with each other. The smart devices 220A, 220B, 220C and 220D receiving the beacon message transmit a multicast message based on the CoAP protocol. For reference, IETF REC 7390 describes multicast-based membership configurations. IETF REC 7390 describes how a node can find group members using specific service discovery means. For example, in FIG. 3, the beacon message (ID) received by the smart devices 220A, 220B, 220C, and 220D may be information for forming a constant group. That is, a plurality of smart devices receiving a beacon message can form a group by exchanging multicast messages according to the CoAP protocol. The detailed process described in the RFC 7390 document is omitted. (2) Further, the beacon transmitter 210 or the server 250 providing the service may form a group based on information received from the plurality of smart devices, and may further determine a smart device representing the group.

It is assumed that at least two of the plurality of smart devices 220A, 220B, 220C, and 220D form one group. For example, a plurality of smart devices 220A, 220B, and 220C may form a group. A group of a plurality of smart devices receives a common beacon service. Therefore, the group is called a service group.

And determines one of the smart devices as a representative of the service group. The device is referred to as a representative device. For example, it is assumed that the smart device 220C is determined as a representative device in FIG. The representative device 220C receives content from the service server 250 on behalf of the service group.

The representative device 220C collects certain information from the smart devices belonging to the service group and transmits the collected information to the service server 250. [ The service server 250 determines contents provided to the service group based on the information transmitted by the representative device 220C. And the content that the service server 250 has decided to provide to the current service group is referred to as the target content.

 The service server 250 delivers the target content to the representative device 220C. The representative device 220C transmits the received target content to the other smart devices 220A and 220B. The smart device 220C can transmit the target content to other smart devices belonging to the service group through the short distance communication, the WiFi, or the mobile communication network.

Figure 4 is an example of a procedure 300 for providing a beacon service for a plurality of smart devices. FIG. 4 is an example of a method of providing a beacon service in a system 200 that provides the beacon service of FIG. FIG. 4 exemplifies only the smart devices 220A, 220B, and 220C of FIG. Assume that the smart devices 220A, 220B, and 220C are in the coverage of the beacon transmitter 210. On the other hand, FIG. 5 shows an example of a CoAP message.

The beacon transmitter 210 broadcasts a CON (confirm) CoAP message (301, 302, 303). The beacon transmitter 210 broadcasts a CON CoAP message as shown in FIG. 5 (a). The beacon transmitter 210 continuously or periodically broadcasts a CON CoAP message informing the beacon service. Upon receiving the beacon service notification message, the smart devices 220A, 220B, and 222C transmit an ACK CoAP message to the beacon transmitter 210 in response (311, 312, and 313). The smart devices 220A, 220B, and 222C transmit their attribute information in a payload of an ACK CoAP message as shown in FIG. 5B. The attribute information delivered by the smart device that received the beacon service notification message is called first attribute information.

The beacon transmitter 210 determines a smart device constituting the service group based on the first attribute information (321). (1) The first attribute information may basically be information in which each smart device 220A, 220B, and 222C has previously set whether to receive a beacon service. The user can set whether or not he / she will receive the specific beacon service by using the smart device in advance. The smart device can receive the content from the service server 250 only when the user allows the beacon service. Further, the user may set information that he / she wants to receive only a specific beacon service in advance. In this case, the beacon transmitter 210 may determine the service group as the service group if the service desired by the user coincides with the service provided by the beacon transmitter 210 in the first attribute information transmitted by the smart device. (2) The first attribute information may be the energy remaining amount of the smart device. The beacon transmitter 210 can determine only the smart device having the energy remaining amount equal to or greater than the reference value as the service group. (3) The first attribute information may be a type of a wireless interface that can be supported by the smart device. The representative device must be able to communicate with other smart devices belonging to the group and also be able to communicate with the service server 250. Accordingly, the beacon transmitter 210 can determine a smart device having a common wireless interface, and further having a wireless interface supported in the current communication environment, as a service group.

Further, the beacon transmitter 210 can select a specific smart device among the service groups as the representative device using the first attribute information. (1) The first attribute information may be a doctor of a smart device. The specific smart device can be set in advance to operate as a representative device, and the corresponding smart device can be transmitted as first attribute information. In this case, the beacon transmitter 210 may preferentially select a smart device having a representative device as a representative device candidate. (2) The first attribute information may include the energy remaining amount as described above. Since the representative device basically performs a lot of communication compared to other smart devices, a certain amount of energy is required. The beacon transmitter 210 can select a smart device having a lower energy limit or more as a representative device to operate as a representative device.

(3) The first attribute information may be a type of a wireless interface as described above. The representative apparatus should perform communication with the service server 250. For example, the beacon transmitter 210 may select a device capable of communicating with the service server 250 via the Internet as a representative device. At the same time, the beacon transmitter 210 can select a smart device capable of communicating with the remaining smart devices belonging to the service group (local communication, D2D communication, etc.) as a representative device.

In summary, the first attribute information may include at least one of information set by a smart device user in advance, energy amount, supported wireless interface information, and the like. Wireless interface information, etc. are related to the hardware specification of the smart device. Accordingly, the first attribute information may include an identifier that identifies a hardware specification of the smart device or a product type of the smart device. In FIG. 4, it is assumed that the beacon transmitter 210 selects the smart device 220C as a representative device.

The beacon transmitter 210 transmits the ID (group ID) of the service group and the ID (representative device ID) of the representative device to the smart devices belonging to the service group (331, 332, 333). Further, the beacon transmitter 210 may transmit a separate ID for the smart device belonging to the service group. The beacon transmitter 210 may transmit a group ID, a representative device ID, and the like to the payload field of the NON CoAP message as shown in FIG. 5 (c). Through this, the smart device can know the representative device of the service group, and the representative device can know the remaining smart devices included in the service group. Based on this information, the representative device later delivers the content to the remaining smart devices.

The smart device 220C, which is a representative device, can inquire the service server 250 about the information required for the beacon service. The smart device 220C and the service server 250 exchange information through a network such as the Internet. The smart device 220C may transmit a CON CoAP message having an MID (Message ID) different from that of FIG. 5A to the service server (341). In response, the service server 250 transmits the kind of the second attribute information required for providing the beacon service to the smart device 220C (342). The service server 250 may transmit the type of the second attribute information to the payload of the ACK CoAP message as shown in FIG. 5 (d) to the smart device 220C.

The smart device 220C requests the second property information from other smart devices belonging to the service group (351, 352). The smart device 220C may transmit the CON CoAP message and request the second device 230A to the second smart device 220A or 220B. The smart devices 220A and 220B may transmit their second attribute information to the smart device 220C by loading them in the payload of the ACK CoAP message as shown in Figure 5E (361, 362_. , Mobile communication, and the Internet.

The smart device 220C transmits the collected second attribute information (including its own second attribute information) to the service server 250 (371). The smart device 220C may transmit the second attribute information collected in the ferry load of the CON CoAP message as shown in FIG. 5 (f) to the service server 250. The service server 250 may receive the second attribute information and may transmit an ACK CoAP message to the smart device 220C in response.

The service server 250 determines the target content to be provided to the service group based on the second attribute information (381). (1) The second attribute information may include attribute information of the smart device. The device attribute information includes information such as hardware usage, software information, application installation status, OS type, etc. required to provide or reproduce the content. For example, since there may be a requirement for reproducing a content, the service server 250 can determine the target content in consideration of the specification of the smart device belonging to the service group. (2) The second attribute information may be user attribute information using the smart device. The user attribute information means information necessary for determining contents on the basis of the user, such as the sex of the user, the age of the user, and the interest of the user. The service server 250 can determine the target content in consideration of the user's personal taste or statistical taste. (3) The second attribute information may be a service history stored in the smart device. Here, the service history means a user's history using a smart device. The service history may include a history of purchasing a specific product, a history of visiting a specific website, a frequency of conversation with a specific person, a frequency of reproduction of a specific content, and the like. The service server 250 can determine the target content based on the history information using the smart device by the user. (4) The second attribute information may be schedule information stored in the smart device. The schedule information means a personal schedule input by the user. The service server 250 can determine the target content related to the schedule in consideration of the future schedule of the user. (5) The second attribute information may be the same information as the address book stored in the smart device. For example, the service server 250 can identify the other persons stored in the address book, determine the target contents in consideration of the area, age, etc. of the other person. Alternatively, the service server 250 may identify a person who has frequently communicated with a user of the smart device, and may determine the same content as the target content if the content has been provided to the other person.

The service server 250 delivers the target content to the smart device 220C (382). The smart device 220C as the representative device delivers the target content to the remaining smart devices 220A and 220B belonging to the service group (391 and 392).

The present embodiment and drawings attached hereto are only a part of the technical idea included in the above-described technology, and it is easy for a person skilled in the art to easily understand the technical idea included in the description of the above- It will be appreciated that variations that may be deduced and specific embodiments are included within the scope of the foregoing description.

100: A system that provides beacon service
110: Beacon transmitter
120A, 120B, 120C and 120D: smart devices
150: service server
200: System that provides beacon service
210: Beacon transmitter
220A, 220B, 220C, 220D: Smart devices
250: service server

Claims (9)

The beacon transmitter determines two or more smart devices among the plurality of smart devices in the communication coverage as a service group using the CoAP message and determines one of the smart devices belonging to the service group as a representative device;
The server requesting second representative information from the representative apparatus using the CoAP message;
Receiving second attribute information collected by the representative device from a smart device belonging to the service group using the CoAP message; And
And transmitting, by the server, the content determined based on the second attribute information to the representative apparatus,
Wherein the beacon transmitter determines a smart device belonging to the service group based on first attribute information received from the plurality of smart devices,
Wherein the first attribute information includes whether or not the smart device is allowed to perform a beacon service, information on an allowed service, and an energy remaining amount of the smart device,
Wherein the second attribute information includes a specification information of the smart device, a service history stored in the smart device, user schedule information stored in the smart device, and an address book stored in the smart device. The method according to claim 1,
Wherein the representative device further includes delivering the content to another smart device belonging to the service group. The method according to claim 1,
The step of determining the representative device
Broadcasting the confirmation type CoAP message requesting the first attribute information by the beacon transmitter;
Receiving, by the beacon transmitter, an acknowledged CoAP message including the first attribute information from the plurality of smart devices;
The beacon transmitter determining a smart device belonging to the service group among the plurality of smart devices based on the first attribute information; And
Wherein the beacon transmitter determines the representative device of the service group. delete The method according to claim 1,
Wherein the beacon transmitter is a method for providing a beacon service based on a CoAP message for a plurality of smart devices that determine the representative device based on at least one of support intention of the smart device, energy amount of the smart device, type of the wireless network interface, . 3. The method of claim 2,
Wherein the beacon transmitter further comprises transmitting an unconfirmed CoAP message including an ID of a smart device belonging to the service group, an ID of the service group, and an ID of the representative device to a smart device belonging to the service group A method for providing a beacon service based on a CoAP message to a smart device. The method according to claim 1,
The step of requesting the second attribute information
Receiving, by the server, a confirmation type CoAP message requesting necessary information from the representative device; And
And transmitting the acknowledgment type CoAP message requesting the second attribute information to the representative device by the server. The method according to claim 1,
The step of receiving the second property information
The representative device transmitting a request for the second attribute information to another smart device belonging to the service group;
The representative device receiving the second property information from the other smart device; And
And transmitting the second attribute information to the server by the representative device. delete

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