KR20090006600A - Apparatus and method for measuring of fields digital multimedia broadcasting - Google Patents

Apparatus and method for measuring of fields digital multimedia broadcasting Download PDF

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Publication number
KR20090006600A
KR20090006600A KR1020070070087A KR20070070087A KR20090006600A KR 20090006600 A KR20090006600 A KR 20090006600A KR 1020070070087 A KR1020070070087 A KR 1020070070087A KR 20070070087 A KR20070070087 A KR 20070070087A KR 20090006600 A KR20090006600 A KR 20090006600A
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KR
South Korea
Prior art keywords
error rate
bit error
information
multimedia broadcasting
terminal
Prior art date
Application number
KR1020070070087A
Other languages
Korean (ko)
Inventor
곽중영
이경주
최윤석
Original Assignee
한국단자공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국단자공업 주식회사 filed Critical 한국단자공업 주식회사
Priority to KR1020070070087A priority Critical patent/KR20090006600A/en
Publication of KR20090006600A publication Critical patent/KR20090006600A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/20—Monitoring; Testing of receivers
    • H04B17/23—Indication means, e.g. displays, alarms, audible means
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
    • H04H60/61—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
    • H04H60/64—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 for providing detail information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/4425—Monitoring of client processing errors or hardware failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/4508—Management of client data or end-user data
    • H04N21/4524—Management of client data or end-user data involving the geographical location of the client
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H2201/00—Aspects of broadcast communication
    • H04H2201/10—Aspects of broadcast communication characterised by the type of broadcast system
    • H04H2201/11—Aspects of broadcast communication characterised by the type of broadcast system digital multimedia broadcasting [DMB]

Abstract

The present invention relates to an apparatus and method for digital multimedia broadcasting field measurement.

The present invention provides a multimedia broadcasting receiver for receiving a digital multimedia broadcasting signal including video data and audio data serviced using a specific channel; A bit error rate generator for measuring a bit error rate for the wireless reception sensitivity of the received digital multimedia broadcasting signal; A controller configured to store current time information, the measured bit error rate, and location information of a terminal corresponding thereto in a predetermined time unit; And a map matching data display unit which map-matches previously stored map data by using the measured bit error rate and location information of the terminal corresponding thereto to display reception sensitivity information of the terminal.

According to the present invention, the reception sensitivity level of the DMB broadcast signal may be expressed in color in the movement path trajectory, so that the status of the DMB broadcast signal may be easily checked.

Description

Apparatus and Method for Measuring of Fields Digital Multimedia Broadcasting

The present invention relates to an apparatus and method for measuring a digital multimedia broadcasting field, and more particularly, to an apparatus and method for measuring a digital multimedia broadcasting field using digital multimedia broadcasting signals and location information of a terminal.

Digital multimedia broadcasting (DMB) is a digital broadcasting service that provides high quality voice, data, and video services through a mobile communication terminal or a vehicle communication terminal.

The DMB receiver for receiving such a DMB signal may be manufactured in various forms such as a vehicle mounted receiver, a fixed receiver, a portable DMB dedicated receiver, and a PC DMB receiver. In general, a mobile communication terminal includes a block related to a received signal strength indication (RSSI). Here, the received signal strength display related block measures the signal received by the mobile communication terminal, and displays the strength of the corresponding received signal on the screen through the received signal strength display bar according to the measured signal.

However, in general, when a user selects a broadcast channel desired by the user, the DMB receiver does not know whether the terminal can receive the DMB broadcast. In order to solve this problem, an apparatus for receiving and testing a DMB signal measures the reception strength of the DMB signal at a specific point and displays the reception level of the DMB signal as data. Since the DMB signal test apparatus displays the reception level of the DMB signal as data, it is difficult to read the measurement data, thereby reducing data utilization in the future, and it is difficult to confirm the measured point after the measurement.

In order to solve such a problem, the present invention is to provide an apparatus and method for measuring digital multimedia broadcasting field using a bit error rate.

According to an aspect of the present invention, there is provided an apparatus for measuring a digital multimedia broadcasting field according to an aspect of the present invention, comprising: a multimedia broadcasting receiver configured to receive a digital multimedia broadcasting signal including video data and audio data serviced using a specific channel; A bit error rate generator for measuring a bit error rate for the wireless reception sensitivity of the received digital multimedia broadcasting signal; A controller configured to store current time information, the measured bit error rate, and location information of a terminal corresponding thereto in a predetermined time unit; And a map matching data display unit which map-matches previously stored map data by using the measured bit error rate and location information of the terminal corresponding thereto and displays reception sensitivity information of the terminal.

According to an aspect of the present invention, there is provided a method for measuring a digital multimedia broadcasting field by (a) generating position information of a terminal through predetermined processing of a satellite positioning system (GPS) signal received from an antenna and using a specific channel. Measuring a bit error rate for wireless reception sensitivity by receiving a digital multimedia broadcasting signal that is serviced; (b) matching and storing the measured bit error rate and location information of the terminal corresponding thereto; And (c) displaying the received sensitivity information of the terminal by map matching the previously stored map data using the measured bit error rate and the terminal location information corresponding thereto.

According to the above-described configuration, the present invention can expect the effect of easily confirming the status of the DMB broadcast signal by expressing the reception sensitivity level of the DMB broadcast signal in the moving path trajectory in color.

The present invention can be expected to store the bit error rate measured with the color information, the location information of the terminal to increase the data utilization of the DMB broadcast signal in the future.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise. In addition, the terms “… unit”, “… unit”, “module”, “block”, etc. described in the specification mean a unit that processes at least one function or operation, which is hardware or software or a combination of hardware and software. Can be implemented as:

DMB field measurement apparatus and method according to an embodiment of the present invention will now be described in detail with reference to the drawings.

1 is a diagram briefly showing an internal configuration of a DMB field measurement apparatus 100 according to an embodiment of the present invention.

DMB field measurement apparatus 100 according to an embodiment of the present invention is a satellite positioning system (GPS) antenna 110, GPS receiver 120, multimedia broadcast receiver 130, bits The error rate generating unit 140, the control unit 150, the DMB field storage unit 160, and the map matching data display unit 170 are included.

The GPS antenna 110 receives GPS radio waves from one or more satellites and transmits them to the GPS receiver 120.

The GPS receiver 120 receives the navigation data included in the GPS radio wave transmitted from the GPS antenna 110 and transmits it to the controller 150. That is, the GPS receiver 120 transmits the latitude and longitude position information and time information of the terminal, which is calculated through a predetermined processing of the received GPS radio waves, to the controller 150. Specifically, the GPS radio wave transmitted from the GPS satellites includes an ID code, orbital position, and time information of the GPS satellites. The GPS receiver 120 calculates a difference in arrival speed between radio waves emitted from a plurality of GPS satellites. Calculate the position coordinate of. Meanwhile, the GPS processor 120 may be mounted on the controller 150 without the GPS receiver 120 as a separate device. In the embodiment of the present invention, the current location information is calculated using GPS, but the location information may be calculated using any means such as a repeater, a phone number, and an IP. In addition, in the embodiment of the present invention, the GPS receiver 120 calculates the location information of the terminal, but may also receive the location information of the terminal from the location information server.

The multimedia broadcasting receiver 130 receives a DMB broadcast signal (video and audio data) serviced using a specific channel.

The bit error rate generator 140 extracts data information (video and audio data) and error check information (error correction code) from the DMB broadcast signal received from the multimedia broadcast receiver 130, compresses the data information, and checks the error check information. The bit error rate for wireless reception sensitivity is measured by comparing with. The bit error rate measuring method may measure the bit error rate in another manner in addition to the method described in the embodiment of the present invention.

The controller 150 matches the current time information, the measured bit error rate, and the current location information of the terminal corresponding thereto in a predetermined time unit, and stores the same in the DMB field storage unit 160. In this case, the controller 150 stores the video and audio data received at the current location of the terminal together in the DMB field storage 160.

In addition, when the measured bit error rate is greater than the reference bit error rate, the controller 150 matches the measured bit error rate with current location information of the terminal corresponding to the measured bit error rate. May be stored at 160. Here, the reference bit error rate means a bit error rate reference value of the threshold range required for performing a video service.

The DMB field storage unit 160 matches and stores the current time information, the measured bit error rate and the current location information of the terminal corresponding thereto, and in addition, the DMB field table together with the video and audio data received at the current location of the terminal. Store in

The map matching data display unit 170 compares the measured bit error rate with a reference bit error rate and displays the reception sensitivity levels of the digital multimedia broadcasting signal as color information 200, 300, and 400 according to the reception sensitivity range. In addition, the map matching data display unit 170 generates processed received sensitivity information based on the measured bit error rate, the current position information of the terminal, and the displayed color information 200, 300, and 400, and maps the map data to previously stored map data. To print.

When the measured bit error rate is greater than the reference bit error rate, the map matching data display unit 170 generates reception sensitivity information, maps the pre-stored map data, and outputs the result. When the measured bit error rate is smaller than the reference bit error rate, the map matching data display unit 170 does not generate the reception sensitivity information. Do not.

The map matching data display unit 170 map-matches the reception sensitivity information to the map data, and outputs the received sensitivity information to the liquid crystal display of the terminal.

Next, a method for measuring a DMB field will be described in detail with reference to FIG. 2.

2 is a view for explaining a DMB field measurement method according to an embodiment of the present invention.

The GPS receiver 120 generates location information of the terminal through a predetermined process on the GPS signal received from the GPS antenna 110 (S100). The bit error rate generator 140 extracts data information (video and audio data) and error check information (error correction code) from the DMB broadcast signal received from the multimedia broadcast receiver 130, compresses the data information, and checks the error check information. By comparing with the bit error rate for the wireless reception sensitivity is measured (S100).

The controller 150 stores the measured bit error rate and location information of the terminal corresponding thereto in the DMB field storage unit 160. At this time, the controller 150 also stores the video and audio data received from the location information of the terminal in the DMB field table (S102).

The map matching data display unit 170 determines which threshold range the measured bit error rate corresponds to the reference comparison error rate (S104).

The map matching data display unit 170 receives the first reception indicating that the reception quality of the terminal is the lowest when the measured bit error rate is greater than or equal to the threshold range (60%) of the reference bit error rate compared to the reference bit error rate. Sensitivity information (if a state in which a video service cannot be performed) is generated, and the generated first reception sensitivity information is mapped to pre-stored map data and output (S106). Here, the first reception sensitivity information refers to information indicating the current location information, the time information, and the red color information 200 of the terminal on the location information in the bar bar format.

The first reception sensitivity information indicates that it is difficult to watch a DMB broadcast, and indicates that the reception sensitivity level is the lowest.

The reception sensitivity level shown in the pre-stored map data may be quantified numerically, and there may be various display methods such as a bar graph.

In addition, the map matching data display unit 170 may recognize the image information when the measured bit error rate is within the threshold range (30% to 60%) of the reference bit error rate, but noise may be added, which may result in unclear reception quality. The second reception sensitivity information indicating the intermediate degree is generated, and the generated second reception sensitivity information is mapped to the prestored map data and output (S108). Here, the second reception sensitivity information refers to information indicating the current location information, the time information, and the orange color information 400 of the terminal in the location information in the bar bar format.

In addition, when the measured bit error rate is less than or equal to the threshold range (30%) of the reference bit error rate, the map matching data display unit 170 generates third reception sensitivity information indicating that the reception quality of the terminal is the best and generates the third received sensitivity information. The reception sensitivity information is mapped to the prestored map data and output (S110). Here, the third reception sensitivity information refers to information indicating the current location information, the time information, and the blue color information 300 of the terminal in the location information in the bar bar format. The threshold range of the aforementioned reference bit error rate may be changed according to a wireless environment.

When the map matching data display unit 170 selects a specific point on the map data on the screen of the terminal, the location information of the terminal, the measured bit error rate, the displayed color information 200, 300, and 400, the time information, and the location of the terminal Information of at least one of video data and audio data received from the information is output.

Next, an external interface of the DMB field measurement apparatus will be described with reference to FIG. 3.

3 is a view for explaining an external interface of the DMB field measurement apparatus according to an embodiment of the present invention.

The external interface of the DMB field measuring apparatus displays the reception sensitivity level of the bit error rate differently as color information (red (200), orange (300), and blue (400)) according to the position where the DMB field is measured. In addition, when the external interface of the DMB field measuring apparatus points to a specific location with an arrow, the location information, bit error rate, date, and time information of the corresponding location are output as a pop-up window.

Subsequently, when the external interface of the DMB field measuring apparatus selects an enter key while pointing a specific position by an arrow, the external interface outputs the stored video data and audio data on the screen when the bit error rate is measured.

The embodiments of the present invention described above are not implemented only by the apparatus and / or method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiments of the present invention, a recording medium on which the program is recorded, and the like. Such implementations may be readily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1 is a diagram briefly illustrating an internal configuration of an apparatus for measuring a DMB field according to an embodiment of the present invention.

2 is a view for explaining a DMB field measurement method according to an embodiment of the present invention.

3 is a view for explaining an external interface of the DMB field measurement apparatus according to an embodiment of the present invention.

Claims (9)

A multimedia broadcasting receiver configured to receive a digital multimedia broadcasting signal including video data and audio data serviced using a specific channel; A bit error rate generator for measuring a bit error rate for the wireless reception sensitivity of the received digital multimedia broadcasting signal; A controller configured to store current time information, the measured bit error rate, and location information of a terminal corresponding thereto in a predetermined time unit; And A map matching data display unit which map-matches previously stored map data by using the measured bit error rate and location information of the terminal corresponding thereto and displays reception sensitivity information of the terminal. Digital multimedia broadcasting field measurement apparatus comprising a. According to claim 1, The map matching data display unit, By comparing the measured bit error rate with a reference bit error rate, the received sensitivity level of the received digital multimedia broadcasting signal is displayed as color information according to a reception sensitivity range, and the measured bit error rate and the position information of the terminal and the displayed information are displayed. A digital multimedia broadcasting field measurement apparatus, comprising: receiving received sensitivity information processed based on color information, and mapping and outputting the mapped sensitivity to previously stored map data. According to claim 1, If the measured bit error rate is greater than the reference bit error rate, the controller matches and stores the measured bit error rate, location information of the terminal corresponding thereto, and image data and audio data received from the location information of the terminal. Digital multimedia broadcasting field measurement device. According to claim 1, The map matching data display unit generates the reception sensitivity information when the measured bit error rate is greater than the reference bit error rate, maps the pre-stored map data, and outputs the received map information. When the bit error rate is smaller than the reference bit error rate, the map matching data display unit generates the reception sensitivity information. Digital multimedia broadcasting field measurement apparatus, characterized in that not generated. (a) Generating position information of a terminal through a predetermined processing of a GPS signal received from an antenna, and receiving a digital multimedia broadcasting signal serviced using a specific channel. Receiving and measuring a bit error rate for wireless reception sensitivity; (b) matching and storing the measured bit error rate and location information of the terminal corresponding thereto; And (c) displaying the received sensitivity information of the terminal by map-matching the previously stored map data using the measured bit error rate and the location information of the terminal corresponding thereto; Digital multimedia broadcasting field measurement method comprising a. The method of claim 5, In the step (c), The measured bit error rate is compared with a reference error bit rate, and the received sensitivity level of the received digital multimedia broadcasting signal is displayed as color information according to a reception sensitivity range, and the measured bit error rate and position information of the terminal and the displayed information are displayed. A digital multimedia broadcasting field measuring method, comprising: generating received sensitivity information processed based on color information, and matching and outputting map-matching to previously stored map data. The method of claim 5, In the step (c), First reception sensitivity information indicating that the video service cannot be performed when the measured bit error rate is greater than or equal to a threshold range of a reference bit error rate, wherein the first reception sensitivity information includes location information of the terminal, the measured bit error rate, and 1 means color information displayed on location information, and map-matches the previously stored map data to output the digital multimedia broadcasting field measurement method. The method of claim 5, In step (b), And matching the received bit error rate with the location information of the terminal corresponding to the measured bit error rate, and storing the video data and the audio data received from the location information of the terminal. The method of claim 5, In the step (c), When the specific location information is selected on the map data, any one of image data and audio data received from the location information of the terminal, the measured bit error rate, the displayed color information, time information, and the location information of the terminal. A digital multimedia broadcasting field measuring method characterized by displaying the above information.
KR1020070070087A 2007-07-12 2007-07-12 Apparatus and method for measuring of fields digital multimedia broadcasting KR20090006600A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101127698B1 (en) * 2010-12-16 2012-03-27 주식회사 애니퓨쳐텍 System for measurement and analysys of broadcast transmission signal quality for terrestrial broadcating network
KR101145938B1 (en) * 2010-11-26 2012-05-15 (주)디티브이인터랙티브 A field test system & a field test method for determining transmission option of brodacast signal respective broadcasting regions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101145938B1 (en) * 2010-11-26 2012-05-15 (주)디티브이인터랙티브 A field test system & a field test method for determining transmission option of brodacast signal respective broadcasting regions
KR101127698B1 (en) * 2010-12-16 2012-03-27 주식회사 애니퓨쳐텍 System for measurement and analysys of broadcast transmission signal quality for terrestrial broadcating network

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