KR101876153B1 - Apparatus and method for data transmission and reception of Wi-Fi-based digital signage - Google Patents

Abstract

The present invention relates to a device and a method for Wi-Fi-based digital signage data transmission and reception including an AP management unit accessing a Wi-Fi AP on the connection candidate AP list, measuring server response time taken until data reception from a server, and determining the priority of connection, a data management unit storing and managing the data exchanged between the digital signage and the server connected to the Wi-Fi AP, and a data transmission management unit managing the time and order of the data transmission based on whether certain data among the data requires update.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for transmitting and receiving data of a Wi-Fi based digital signage,

The present invention relates to an apparatus and method for transmitting and receiving data of a Wi-Fi-based digital signage. More particularly, the present invention relates to a method and apparatus for measuring a server response time required for accessing a Wi- Real-time update information that needs to be updated in real time and non-real-time update information that is updated in non-real-time, and manages the transmission time and rank of the data, thereby efficiently and stably in an unstable Wi-Fi wireless network environment To an apparatus and method for transmitting and receiving data of a digital signage that transmits and receives data.

Digital Signage is a platform that displays images, images, and information on a display screen or projector using a digital information display (DID) and remotely managed through a network. In the past, unilateral and monolithic advertisements for unspecified number of users have been mainly focused on. However, digital signage has become more and more popular as a medium for presenting contexts and interactive contents as well as customized advertisements using analysis of life patterns of users or using big data It is attracting attention.

Typically, the digital signage communication method has no particular restriction on wired and wireless. However, in the industry, wired networks require additional networking costs, so they prefer wireless Fidelity (Wi-Fi) networks that can save money. Unlike wired networks where the operating state of a network is fixed, a Wi-Fi network is a flexible network where access points (APs) are added or removed frequently and can access multiple Wi-Fi APs at a single point. .

The choice of a Wi-Fi AP is usually determined by the user or by the operating system running the hardware of the digital signage. In particular, the operating system of most devices determines APs to be connected according to the intensity of the received signal uniformly rather than the Internet connection. However, considering the characteristics of digital cyberspace, which is often installed outdoors, when using a Wi-Fi network installed in a public place, when there are many users connected to the Wi-Fi AP or when weather conditions are poor, data transmission / reception is unstable Or the speed is slow to provide a proper service.

Therefore, it is not possible to determine the AP to be connected according to the strength of the received signal uniformly by the operating system of the device, but it is possible to select the AP with the fastest data transmission / reception among the connectable Wi-Fi APs This is a time when digital signage data transmission and reception technology is needed more than ever.

Korean Patent Publication No. 2016-0041271

The object of the present invention is to determine whether to connect to the next-ranked AP by setting different connection time limits for each AP based on at least one of signal strength, connection history and server response time (T _s ) of each AP by day, And, There is provided an apparatus and method for transmitting / receiving data of a Wi-Fi-based digital signage that efficiently and reliably transmits / receives data by preferentially requesting, receiving, and updating high priority information from a server

A Wi-Fi based digital signage data transmitting and receiving apparatus according to an embodiment of the present invention is a device in which a digital signage is connected to one or more Wi-Fi access points (APs) An AP management unit managing the AP management unit; A data management unit for storing and managing data exchanged between a server connected to the Wi-Fi AP and the digital signage; A data transmission management unit for managing transmission time and ranking of the data based on whether the data is real-time update information; And a communication unit for exchanging data between the server and the digital signage.

The AP management unit collects information of a Wi-Fi AP to which the digital signage can connect, generates a connection candidate AP list, accesses a Wi-Fi AP in the connection candidate AP list, and receives data from the server The server response time can be measured and the connection priority can be determined and connected.

The AP manager may measure the strength of a received signal received from the Wi-Fi AP to determine a connection priority and connect to the Wi-Fi AP.

The AP management unit may determine the priority of the connection by reflecting a recommendation rank calculated based on at least one of the AP signal strength, the connection history, and the server response time for each date, day, time, weather, and event.

The access point AP listens to APs based on at least one of AP signal strength, access history and server response time by date, day of the week, time, weather, and event, It is possible to determine whether or not to connect to the next-ranked AP by setting different access time limits.

The data transmission management unit may manage the data transmission time and rank by distinguishing the data from real-time update information that needs to be updated in real time and non-real-time update information that is updated in non-real-time.

The apparatus for transmitting / receiving data of a Wi-Fi based digital signage according to an embodiment of the present invention may further include an output unit for outputting the data to a user.

A method for transmitting / receiving data in a Wi-Fi based digital signage according to an embodiment of the present invention is a method in which an AP management unit accesses a wireless fidelity (Wi-Fi) access point (AP) Managing; Storing and managing data exchanged between the data management unit and the digital signage server connected to the Wi-Fi AP; Managing transmission time and ranking of the data based on whether the data transmission management unit is information requiring real-time updating among the data; And a step in which the communication unit exchanges data between the server and the digital signage.

Wherein the step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs comprises the steps of: collecting information of a Wi-Fi AP to which the device is connectable to generate a connection candidate AP list; It is possible to measure the server response time from accessing the Wi-Fi AP in the AP list to receiving the data from the server, and to determine the connection priority by accessing the server response time.

The step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs may measure the strength of a received signal received from the Wi-Fi AP, .

The step of the AP management unit managing the digital signage to be able to access one or more Wi-Fi APs may include receiving at least one of AP signal strength, access history, and server response time by date, day of the week, The priority of the connection can be determined by reflecting the recommendation rank calculated based on the basis.

The step of the AP management unit managing the digital signage so as to be able to access one or more Wi-Fi APs comprises the steps of: performing a connection according to a priority order of the access candidate AP list, It is possible to determine whether or not to connect to the next-ranked AP by setting different connection time limits for each AP based on at least one of the AP signal strength, the connection history, and the server response time for each event.

Wherein the step of managing the data transmission time and rank based on whether the data transmission management unit is real-time update information of the data comprises: real-time update information requiring real-time update; and non-real- And can manage the transmission time and rank of the data by distinguishing them from each other.

A method of transmitting and receiving data of a Wi-Fi-based digital signage according to an exemplary embodiment of the present invention may further include outputting the data to a user by an output unit.

According to an aspect of the present invention, a connection update period (T _AP ) is changed based on at least one of signal strength, connection history and server response time (T _s ) of each AP for each day of the week, The update period can be efficiently managed, It is possible to transmit and receive data efficiently and stably in an unstable Wi-Fi wireless network environment by preferentially requesting and receiving information with high priority from the server and performing update.

1 is a view schematically showing a digital signage utilized.
FIG. 2 is a schematic view of a data transmitting and receiving apparatus of a Wi-Fi based digital signage according to an embodiment of the present invention.
3 is a diagram illustrating a process of determining an access priority by an AP management unit of a data transmission / reception apparatus of a Wi-Fi based digital signage according to an exemplary embodiment of the present invention.
FIG. 4 is a diagram illustrating an example in which the AP management unit of the data transmitting / receiving apparatus of the Wi-Fi-based digital signage according to the embodiment of the present invention reflects the recommendation rank, recommendation rank, And shows an example of a priority list.
5 to 7 are views showing an example of information provided to a user when a data transmitting and receiving apparatus of a Wi-Fi based digital signage according to an embodiment of the present invention is implemented in a digital organization chart.
FIG. 8 is a diagram illustrating an example of a process in which a data transmission / reception management unit queues request information when a data transmission / reception apparatus of a Wi-Fi based digital signage according to an embodiment of the present invention is implemented in a digital organization chart .
9 is a diagram illustrating an example of a process in which a data transmission / reception management unit requests data from a server when a data transmission / reception apparatus of a Wi-Fi based digital signage according to an embodiment of the present invention is implemented in a digital organization chart.
10 is a diagram illustrating a process in which a data transmission / reception management unit of a data transmission and reception apparatus of a Wi-Fi based digital signage requests and records data to and from a server according to an embodiment of the present invention.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a repeated description, a known function that may obscure the gist of the present invention, and a detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Further, the term "part" in the description means a unit for processing one or more functions or operations, which may be implemented by hardware, software, or a combination of hardware and software.

1 is a view schematically showing a digital signage utilized.

As shown in FIG. 1, the digital signage 40 may be installed at various locations where a display may be attached, such as a house, a building exterior wall, or a subway. Recently, digital signage has evolved as a comprehensive platform providing various contents such as weather information, train arrival time, subway route map, surrounding building search and real time news in addition to customized advertisement.

FIG. 2 is a schematic diagram of an apparatus 1000 for transmitting / receiving data of a Wi-Fi-based digital signage according to an embodiment of the present invention.

2, an apparatus 1000 for transmitting / receiving Wi-Fi-based digital signatures according to an embodiment of the present invention includes an AP management unit 100, a data management unit 200, a data transmission management unit 300, And a communication unit 400.

The data transmitting and receiving apparatus 1000 of the Wi-Fi based digital signage shown in FIG. 2 is according to one embodiment, and the components shown in FIG. 2 are not limited to the embodiment shown in FIG. 2, May be added, changed or deleted. In the following description, a detailed description of known components other than the main components will be omitted.

The AP management unit 100 can manage the digital signage to connect to one or more Wi-Fi APs. If there is only one AP accessible at a location where the digital signage is installed, there is no choice for other APs. However, if there are two or more accessible APs, the AP management unit 100 can select the most advantageous AP for data transmission and reception.

The AP management unit 100 may collect information of APs to which the digital signage can connect and generate a connection candidate AP list (L _AP ). The accessable AP information can be obtained by detecting the signals of nearby APs in real time or by using the information of APs that have been connected or collected. One thing to keep in mind is that digital signage is often installed in a place rather than being moved and fixed, unlike mobile devices, which users often use while moving like smartphones. Therefore, unless there is a new installation or removal of the AP in the vicinity, the APs capable of accessing the digital signage often do not change. Accordingly, the AP management unit 100 stores information such as the access name, the day of the week, the connection history by time, and the date in advance, and utilizes it, thereby detecting the signal of the neighbor AP from time to time and collecting the information of the AP Can be reduced.

FIG. 3 is a diagram illustrating a procedure for the AP manager 100 of a data transmitting / receiving apparatus of a Wi-Fi-based digital signage according to an embodiment of the present invention to determine a priority of a connection.

Referring to FIG. 3, the AP management unit 100 may set or change a connection update period (T _AP ) (101). To this end, the AP management unit 100 may include a timer capable of measuring time. The connection update period (T _AP ) may play a role of adjusting the period in which the AP management unit (100) determines the priority of connection. That is, when the connection update period T _AP is set to be short, the period for determining the AP connection priority is shortened and can be frequently updated. On the other hand, when the connection update period T _AP is set long, .

It should be noted that if the connection update period (T _AP ) is set to be short, the period for determining the AP access priority is shortened so that it is possible to quickly cope with the states of the accessable APs and the connection environment. However, 400) may be overloaded to increase the power consumption required to drive the digital signage, or cause an excessive heat generation phenomenon, which may degrade the durability of the display. Therefore, it is necessary to manage the update period efficiently by appropriately adjusting the access update period (T _AP ) according to the situation.

To this end, the AP management unit 100 calculates a connection update period (T _AP ) based on at least one of an AP signal strength, an access history, and a server response time (T _s ) for each day, day, time, So that the update period can be efficiently managed. For example, the access update period (T _AP ) may be set to be short on a specific day or time zone where the server response time deviation is large, and the access update period (T _AP ) may be set longer on a day or time when the server response time deviation is small have.

In this specification, 'event' refers to various events, meetings, and other unexpected events or accidents that may affect the number of users accessing the AP. For example, an event may be a massive sporting event scheduled for a nearby area, such as a World Cup game.

AP management section 100 determines that the connection update period (T _AP) expires 102, the connection update period (T _AP) is the case which are not expired, and waits until the expiration of an update interval connection (T _AP). When the connection update period (T _AP ) has expired, a connectable Wi-Fi AP list (L _AP ) is generated (103). At this time, as described above, the information of Wi-Fi APs that can be connected can be detected by collecting signals of nearby APs in real time, or can use the information of APs that have been connected or collected.

Then, the AP management unit 100 measures the strength of the received signal to be connected to the Wi-Fi AP in the access candidate AP list (L _AP ), and arranges the received signals in descending order of the signal strength (104).

It should be noted that throughout the present specification, 'alignment' refers to any process of changing the arrangement so that a person can recognize based on a physical measurement value or a numerical value in order to easily describe the technical idea of the present invention And the process of moving or changing the actual software-like data may be omitted.

AP management section 100, the connection candidate AP list (L _AP) connected to measure the server response time (T _S) is required to connect to the AP for the data is received from the server 10 a priority list in (L _SAP ) (105).

AP management unit 100, the server response time (T _S) is connected to a priority list (L _SAP) server response time (T _S) is (106) can be sorted in ascending order, as reflected in short order.

The AP management unit 100 may determine a connection priority order by reflecting a recommendation rank calculated based on one or more of AP signal strength, connection history, and server response time for each date, day, time, weather, and event. The recommendation rank can be calculated by dividing the recommendation rank by the recommendation rank for each item, that is, by the date, the day of the week, the hour, the weather, and the event (107). In addition, each item can be combined to calculate a recommendation ranking.

As noted above, AP management section 100 is pre-stored information such as connectable one AP name, date, and day of the week, time, AP signal strength by weather-specific and events, access history, and the server response time (T _S) . Such pre-stored information can be used to estimate the recommendation rank by date, day of the week, hour, weather, and event.

4 is a diagram illustrating an example of a configuration in which the AP management unit 100 of the device for transmitting and receiving data based on Wi-Fi based digital signage according to the embodiment of the present invention reflects a recommended recommendation rank, And shows an example of the generated connection priority list.

4, the AP management unit 100 of the data transmitting / receiving apparatus of the Wi-Fi based digital signage according to the embodiment of the present invention calculates a server response time T _S ) can be measured and used for connection.

In the case of a Wi-Fi AP installed in a public place, the more users connected to the AP, the longer the time required to transmit and receive the actual data regardless of the signal strength of the AP Can be prolonged.

Referring to FIG. 4, although the AP having the AP name installed in the first floor civil room has the strongest signal strength, the server response time may be long due to a large number of users during the period when the complainant is driving. The AP management unit 100 can utilize the information on the AP signal strength, access history, server response time, and the like as a recommendation rank for each item by date, day, time, weather, and event. For example, in the case of a public institution, it is possible to statistically utilize AP information by a specific day of the week or a time zone in which a complainant is driven, to calculate a recommended recommendation rank per day or a recommendation rank by hour.

The AP management unit 100 uses information on events that may affect the number of users accessing the AP (for example, a period of VAT reporting, The recommendation rank can also be calculated. For example, if a concert event held in front of the city hall is scheduled, APs that can access a lot of attendees can be set to a low recommendation rank, or signal strength, access history, and server response time of the AP It is possible to calculate the recommendation rank for each AP.

In addition, in the case of a digital signage installed outdoors, the communication environment may vary according to weather conditions such as temperature, humidity, and precipitation due to the nature of the Wi-Fi communication system. Therefore, the AP management unit 100 statistically And can be used as a recommendation rank by weather. For example, when the humidity is high or the amount of precipitation is high, the efficiency of passing Wi-Fi AP signals through building walls is low, and when server response time deviates severely, it can be used as a recommendation rank by weather.

The data management unit 200 can store and manage data exchanged between the server 10 connected to the Wi-Fi AP and the digital signage. The data management unit 200 may include a storage medium such as a memory, a hard disk, and the like.

The data transmission management unit 300 can manage the data transmission time and rank based on whether the data is real-time update information. To this end, the data transmission management unit 300 can manage the data transmission time and rank by distinguishing the data as real-time update information that needs to be updated in real time and non-real-time update information that is updated in non-real-time.

The Wi-Fi-based digital signage data transmitting and receiving apparatus according to an embodiment of the present invention can also be utilized as a smart organization chart in a public institution or the like. It is a digital signage equipped with a display that has been replaced with a traditional organizational chart which was produced by smart organization paper or plastic panel, and has attracted attention as an efficient delivery of departmental work and various publicity contents providing medium.

5 to 7 are views showing an example of information provided to a user when a data transmitting and receiving apparatus of a Wi-Fi based digital signage according to an embodiment of the present invention is implemented in a digital organization chart.

Referring to FIGS. 5 to 7, data exchanged with the server 10 in order to provide the PR service by the smart organization chart can be largely divided into announcement, general information, image information, image information, and control messages. The announcement is information for informing the user with special guidance, and may be real-time update information due to its characteristics. The general information may include text information and image information, and may be non-real time update information. The image information may include photo information and building layout information, and may be non-real time update information. The image information may include a streaming image and a video on demand (VoD) image. The streaming image may be real-time update information, and the VoD image may be non-real-time update information. The control message may include control information necessary for driving the smart organization chart, and may be real-time update information.

The data transmission management unit 300 may set the transmission priority for each of the real-time update information and the non-real-time update information. As shown in FIG. 5, the real-time update information includes R1, R2, ... And the non-real time update information may be given priority codes N1, N2, ... A priority code can be given.

The communication unit 400 can exchange data between the server 10 and the digital signage. The communication unit 400 may be connected to the Wi-Fi AP and wirelessly to request data and receive the requested data. The server 10 may store all information related to the service provided by the digital signage and may be connected to one or more APs via the network 20. [

The apparatus for transmitting / receiving data of Wi-Fi based digital signage according to an exemplary embodiment of the present invention may further include an output unit 500 for outputting information necessary for the user using the data.

The output unit 500 may include a display that displays information on the flat panel using electronic or electrical signals. The display may be driven by a touch screen method.

FIG. 8 is a diagram illustrating an example of a process in which a data transmission / reception management unit queues request information when a data transmission / reception apparatus of a Wi-Fi based digital signage according to an embodiment of the present invention is implemented in a digital organization chart .

In general, wireless communication using Wi-Fi has a drawback in that the speed and stability are lower than that of a wired network. Accordingly, it is very important to check whether the digital signage needs information update from the server 10 in the process of transmitting and receiving data of the Wi-Fi-based digital signage, and in what order to transmit and receive data, if necessary. If the digital signage does not send or receive the information that is needed first in order to provide the service, it will take time to reconnect or connect to another AP if the connection with the AP is disconnected after transmitting / receiving the information with low priority, The user may not be able to quickly and efficiently provide the information to the user.

Referring to FIG. 8, the data transmission / reception management unit may set or reset the version check period T _SC (301). If the timer version check period (T _SC) expires determine whether the version check period (T _SC) has expired, and the version information (R1) (303). If you compare the latest version of the data beojeonwa server 10 stored in the data management unit 200 is stored in 304 data control unit 200, the data version being confirmed by the latest version, then re-re-check the version period (T _SC) It may attempt to verify the version (303).

If the data version stored in the data management unit 200 is different from the latest version on the server 10, it is possible to check whether there is data modification by priority code. The data update request message can be enqueued according to the priority of the data thus set.

The data management unit 200 first determines whether there is a change in the announcement (305), and if there is a change in the announcement, the data management unit (200) may queue the real time update request message for the announcement (306). If there is a modification in the video (307), it is determined whether the modified data is streaming or VoD video (308). If the video is streaming, a real-time update request message is queued (309) (310). If there is a modification in the general information 311, a non-real-time update request message may be queued 312, and if there is a modification to the image information 313, a non-real-time update request message may be queued 314 ).

Thereafter, the data management unit 200 receives the request information corresponding to the queue from the server 10, updates the corresponding data (315), and performs a version information check procedure again when the version check period T _SC expires (303).

9 is a diagram illustrating an example of a process in which a data transmission / reception management unit requests data to a server 10 when a data transmission / reception device of a Wi-Fi based digital signage according to an embodiment of the present invention is implemented in a digital organization chart to be.

Referring to FIG. 9, the data transmission / reception management unit 321, 324, 327, 330, 333, 336, and 339 determines whether there is an update request message for each queue corresponding to each priority code, (323, 326, 329, 332, 335, 338, 341). In this process, the update request message is dequeued (322, 325, 328, 331, 334, 337, 340).

As described above, the data transmission / reception management unit preferentially requests and receives the high priority information from the server 10 to update and receive the data in an efficient and stable manner in a digital signage communication environment using an unstable Wi-Fi wireless network Data can be transmitted and received.

10 is a diagram illustrating a process in which a data transmission / reception management unit of a data transmission / reception device of a Wi-Fi based digital signage requests and records data to the server 10 according to an embodiment of the present invention.

Referring to FIG. 10, the access priority list (L _SAP ) can be connected to the highest priority AP (111) and the connection time limit (T _RSP ) can be set or reset (112). When data is requested to the server 10, it is determined 114 whether to receive data from the server 10 within the connection time limit T _RSP 114. If data is received within the connection time limit T _RSP , It is possible to record one piece of data in the data management unit 200. If data is not received from the server 10 within the connection time limit T _RSP , it is determined 116 whether there is a subordinate AP on the connection priority list L _SAP . If there is a subordinate AP, (117).

At this time, as described above, the AP management unit 100 can utilize the information about the AP signal strength, access history, server response time, and the like according to each day, time, and weather as a recommendation rank for each item.

The AP management unit 100 performs an access based on at least one of AP signal strength, connection history, and server response time by date, day of the week, time, weather, and event, (T _RSP ) may be set differently to determine whether to connect to the next-ranked AP. For example, a user with a particular AP can quickly skip to a subordinate AP by setting a shorter connection timeout (T _RSP ) for the AP on a number of days and times of the week. That is, AP selection can be performed actively and efficiently instead of manual AP selection, thereby ensuring the most stable data transmission / reception environment.

A method of transmitting and receiving data in a Wi-Fi based digital signage according to an embodiment of the present invention is a method in which an AP management unit accesses a wireless fidelity (Wi-Fi) access point (AP) Managing; Storing and managing data exchanged between the data management unit and the digital signage server connected to the Wi-Fi AP; Managing transmission time and ranking of the data based on whether the data transmission management unit is information requiring real-time updating among the data; And a step in which the communication unit exchanges data between the server and the digital signage.

The step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs may include collecting information of a Wi-Fi AP to which the device is connectable to generate a connection candidate AP list, It is possible to measure the server response time required for accessing the list Wi-Fi AP and receiving data from the server, so that the connection priority can be determined and connected.

The step of the AP management unit managing the digital signage so as to be able to access one or more Wi-Fi APs may measure the strength of a received signal received from the Wi-Fi AP to determine a connection priority and connect the measured value.

The step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs may be based on at least one of the AP signal strength, the connection history, and the server response time by date, day of the week, The priority ranking of the connection can be determined by reflecting the recommendation rank calculated by.

The step of managing the digital signage so that the AP management unit can access one or more Wi-Fi APs comprises the steps of: performing a connection according to a priority order of the access candidate AP list; It is possible to determine whether to connect to the next-ranked AP by setting a different connection time-out period for each AP based on at least one of a star AP signal strength, an access history, and a server response time.

The step of managing transmission time and ranking of the data based on whether the data transmission management unit is information requiring real-time updating among the data may include receiving real-time update information that requires real-time updating of data and non- And can manage the transmission time and rank of the data.

The method of transmitting and receiving data of Wi-Fi-based digital signage according to an embodiment of the present invention may further include outputting the data to a user by an output unit.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken as limitations. 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.

10: Server
20: Network
30: Wi-Fi AP
40: Digital Signage
100: AP management section
200:
300: Data transmission management unit
400:
500: Output section
1000: Data transmission / reception device of Wi-Fi based digital signage

Claims (14)

An AP management unit managing a digital signage to access one or more wireless fidelity (Wi-Fi) access points (APs);
A data management unit for storing and managing data exchanged between a server connected to the Wi-Fi AP and the digital signage;
A data transmission management unit for managing transmission time and ranking of the data based on whether the data is real-time update information; And
And a communication unit for exchanging data between the server and the digital signage,
The AP management unit,
A WiMAX access point, a WiMAX access point, a WiMAX access point, a WiMAX access point, a WiMAX access point, a WiMAX access point, And the time is measured so that the connection priority is determined and connected.
An apparatus for transmitting and receiving data of a Wi-Fi based digital signage.
delete The method according to claim 1,
The AP management unit,
And measures the strength of a received signal received from the Wi-Fi AP to determine a connection priority and to connect to the Wi-
An apparatus for transmitting and receiving data of a Wi-Fi based digital signage.
The method according to claim 1,
The AP management unit,
Wherein a priority of a connection is determined by reflecting a recommendation rank calculated based on at least one of an AP signal strength, a connection history, and a server response time by date, day, hour, weather, and event.
An apparatus for transmitting and receiving data of a Wi-Fi based digital signage.
The method according to claim 1,
The AP management unit,
In connection with performing the connection according to the priority order of the connection candidate AP list, a connection limit time is calculated for each AP based on at least one of the AP signal strength, the connection history, and the server response time by date, day, time, weather, To determine whether to connect to the next-ranked AP. ≪ RTI ID = 0.0 >
An apparatus for transmitting and receiving data of a Wi-Fi based digital signage.
The method according to claim 1,
Wherein the data transmission management unit comprises:
Real time update information that needs to be updated in real time and non-real time update information that is updated in non-real time, and manages the transmission time and rank of the data.
An apparatus for transmitting and receiving data of a Wi-Fi based digital signage.
The method according to claim 1,
And an output unit for outputting information necessary for the user using the data.
An apparatus for transmitting and receiving data of a Wi-Fi based digital signage.
The AP management unit managing the digital signage to access at least one wireless fidelity (Wi-Fi) access point (AP);
Storing and managing data exchanged between the data management unit and the digital signage server connected to the Wi-Fi AP;
Managing transmission time and ranking of the data based on whether the data transmission management unit is information requiring real-time updating among the data; And
And a communication unit for exchanging data between the server and the digital signage,
Wherein the step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs comprises:
A WiMAX access point, a WiMAX access point, a WiMAX access point, a WiMAX access point, a WiMAX access point, a WiMAX access point, And the time is measured so that the connection priority is determined and connected.
A method for transmitting and receiving data in a Wi-Fi based digital signage.
delete 9. The method of claim 8,
Wherein the step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs comprises:
And measures the strength of a received signal received from the Wi-Fi AP to determine a connection priority and to connect to the Wi-
A method for transmitting and receiving data in a Wi-Fi based digital signage.
9. The method of claim 8,
Wherein the step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs comprises:
It reflects the recommendation ranking based on at least one of AP signal strength, connection history and server response time by date, day, hour, weather, and event The priority of the connection is determined.
A method for transmitting and receiving data in a Wi-Fi based digital signage.
9. The method of claim 8,
Wherein the step of the AP management unit managing the digital signage to connect to one or more Wi-Fi APs comprises:
In connection with performing the connection according to the priority order of the connection candidate AP list, a connection limit time is calculated for each AP based on at least one of the AP signal strength, the connection history, and the server response time by date, day, time, weather, To determine whether to connect to the next-ranked AP. ≪ RTI ID = 0.0 >
A method for transmitting and receiving data in a Wi-Fi based digital signage.
9. The method of claim 8,
Wherein the managing of the data transmission time and rank based on whether the data transmission management unit is real-
Real time update information that needs to be updated in real time and non-real time update information that is updated in non-real time, and manages the transmission time and rank of the data.
A method for transmitting and receiving data in a Wi-Fi based digital signage.
9. The method of claim 8,
And outputting the data to the user by the output unit.
A method for transmitting and receiving data in a Wi-Fi based digital signage.

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