JP2007274354A - Mobile terminal receiving state displaying device and mobile terminal receiving state report system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To be able to know a receiving state according to a state after change even when surrounding environment of a mobile terminal changes with progress of time. <P>SOLUTION: A portable telephone set 2 receives a broadcasting signal, detects the level, detects a position of the portable telephone set 2, and displays the receiving state at the position in a display unit of the portable telephone set 2 based on the detected receiving level and position. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile terminal reception status display device that displays on a mobile terminal the reception status of a broadcast signal in a mobile terminal such as a mobile phone, and a reception status notification system using this device.

  Currently, terrestrial digital broadcasting has started in Japan. In terrestrial digital broadcasting, broadcasting for mobile terminals such as portable terminals will be started soon. For example, Patent Literature 1 discloses a technique for distributing an EPG indicating a terrestrial digital broadcast program that can be received at the current position of the mobile terminal to the mobile terminal in order to receive the broadcast for the mobile terminal satisfactorily.

  In the technique disclosed in Patent Document 1, EPG request information including position information is transmitted from a mobile terminal to a communication station. The communication station has a database built therein, which stores a broadcast service area map, searches this database using the received position information as a key, and the position represented by the received position information or near that position The receivable broadcast channel is transmitted to the mobile terminal.

JP 2004-104482 A

  In the technique of Patent Document 1, a database is created in advance. There is a statement that the database will be created through field experiments and simulations. Mobile terminals are susceptible to the effects of multi-paths that block radio waves from buildings such as buildings around the mobile terminal, and that the same radio waves reflected from the building arrive at the mobile terminal from multiple directions. If the situation of the building around the location changes after the experiment or simulation, the premise has changed from when the experiment or simulation was performed. There is a high possibility that it will not be able to be received. In addition, there are individual differences (for example, the inclination of the mobile terminal itself, the orientation of the mobile terminal with respect to the broadcasting station, the difference in the sensitivity of the antenna due to the difference in the model of the mobile terminal), and the reception level also changes accordingly. Creating a detailed database has been difficult.

  The present invention uses a reception status display device of a mobile terminal that can know the reception status according to the status after the change even when the surrounding environment of the mobile terminal changes with time, and this display device. An object is to provide a reception status notification system.

  The reception status display device according to one aspect of the present invention includes reception means, level detection means, position detection means, data creation means, and display means provided in a mobile terminal. As the mobile terminal, for example, a mobile phone, PHS, PDA, in-vehicle terminal, mobile PC, or the like can be used. The receiving means receives a broadcast signal, for example, a terrestrial digital television broadcast signal, specifically, one-segment broadcasting. The level detecting means detects the level of the broadcast signal received by the receiving means, and generates level information representing the detected level. The position detecting means generates position information indicating the position of the mobile terminal. The data creation means creates data representing the reception status of the broadcast signal at the position represented by the position information based on the level information and the position information. The display means displays the data. The level detection means, position detection means, data creation means, and display means can be operated at all times, but can also be operated every time a predetermined time elapses.

  The reception status display device configured as described above can accumulate various latest data in daily living areas. In addition, instead of using a database created in advance by field experiments or simulations, data created based on the current location of each mobile terminal and the actual reception level at that location is used. Therefore, even if the situation around the mobile terminal has changed from the past, the mobile terminal can know the reception status of the current environment.

  The mobile terminal can be provided with an inclination detection means for detecting the inclination of the mobile terminal and generating inclination information representing the inclination. In this case, the data creation unit generates the data representing the reception status of the mobile terminal at the position of the mobile terminal based on the tilt information in addition to the level information and the position information.

  With this configuration, when the mobile terminal is tilted by being held like a mobile phone, for example, it is possible to know the reception status corresponding to not only the position but also the tilt.

  The mobile terminal comprises a first part and a second part, a broadcast signal receiving antenna is provided inside the first part, and an angle formed by the first part with respect to the second part can be changed It can be. In this case, the mobile terminal is provided with angle detection means for detecting the angle and generating angle information representing the angle. Further, the data generation means generates the data representing the reception status at the angle of the mobile terminal at the position of the mobile terminal based on the angle information in addition to the level information and the position information.

  In the case of a mobile terminal in which the angle formed by the first part relative to the second part can be changed, for example a foldable mobile phone, the angle of the antenna can be determined relative to the second part. The reception situation varies depending on the angle. However, if the data is created as described above, it is possible to provide the user of the mobile terminal with the reception status not only according to the reception position but also according to the angle of the second part with respect to the first part. .

  Furthermore, the above-described inclination detection means can also be provided in the mobile terminal. If comprised in this way, the reception condition according to the angle of the 2nd part with respect to the 1st part and the inclination of a mobile terminal can be provided to the user of a mobile terminal.

  In the reception information notification system according to another aspect of the present invention, a plurality of mobile terminals including the reception status display device according to any one of the aspects described above are configured to be able to communicate with a management center. The data is transmitted from the plurality of mobile terminals to the management center, and the management center creates a database representing the reception status of a wide area at various positions from each data. Each mobile terminal transmits the location information to the management center, and the management center transmits data representing a reception status corresponding to the transmitted location information to the mobile terminal.

  If comprised in this way, the database created rather than using the database created beforehand by the field experiment or simulation will be created based on the data transmitted from each mobile terminal which exists in various positions. Therefore, even if the surrounding environment of the position where the mobile terminal exists is different from the past, the mobile terminal can know the reception status close to the current status.

  The data may include a reception area map indicating whether or not the broadcast signal can be received at the mobile terminal at the position represented by the position information. If comprised in this way, when the user of a mobile terminal is located in the area which cannot receive, the information of which direction and how much it will be able to receive can be obtained.

  As described above, according to the present invention, even if the situation around the mobile terminal changes over time or there are individual differences in the mobile terminal, the reception status corresponding to these can be known at the mobile terminal. it can.

  As shown in FIG. 1, a mobile terminal reception status notification system according to an embodiment of the present invention includes a plurality of mobile terminals, for example, mobile phones 2. These mobile telephones 2 can make calls as mobile telephones via the mobile base station 4 and can also transmit broadcast signals transmitted from a transmission station such as a terrestrial digital television broadcast transmission station 6, such as terrestrial digital television. A receiving means for receiving a broadcast signal, specifically a one-segment broadcast signal, for example, a tuner is provided. This tuner can receive all the channels transmitted from the transmitting station 6. The cellular phone 2 further includes level detecting means for detecting the received level of each received channel, for example, a level detector.

  Further, these mobile phone devices 2 are provided with a position information detecting means for indicating the position of the mobile phone device 2, for example, a GPS device using GPS satellites 8, 8. Therefore, the cellular phone device 2 can measure the position of the mobile phone device 2 with high accuracy. Further, these cellular phones 2 are also provided with a tilt detecting means, for example, a tilt detector. The inclination detector detects at what angle the mobile phone 2 is used by its user, for example with respect to a horizontal plane.

  In the case of the folding type, the cellular phone device 2 includes first and second portions 2a and 2b, and the first portion 2a is disposed so as to overlap the second portion 2b when not in use. However, in use, the first portion 2a is opened and used at an angle with respect to the second portion 2b. The one-segment broadcasting receiving antenna is accommodated in the first portion 2a, and the sensitivity of the antenna varies depending on the opening angle. Therefore, the angle of the opening is detected by an angle detector.

  Each mobile phone 2 stores the information, that is, the level information by the level detector, the position information by the GPS device, the tilt information by the tilt detector, and the angle information by the angle detector every time a certain time elapses. Detect as shown in Each mobile phone device 2 analyzes each piece of information and generates data.

  First, it is determined whether the current reception level of the mobile phone device 2 is equal to or higher than a reference level at which a one-segment broadcasting signal can be received satisfactorily. The determination result, that is, whether the signal can be received or not, can be displayed on the display means provided in the cellular phone device 2, for example, on the display unit as shown in FIG. .

  Further, the cellular phone device 2 also has map data in relation to the GPS device, and an indicator indicating the position indicated by the position information is added to the map data indicating the position indicated by the GPS device and its surroundings. The added reception area map can be created as shown in FIG. 4, and can be displayed on the display unit as shown in FIG. Such reception area map data can be stored in the cellular phone 2.

  Whether the display as shown in FIG. 3A or 3B or the display as shown in FIG. 3C is performed can be selected by operating a key provided in the mobile phone 2. In this way, various latest data in daily living areas are detected by the mobile phone 2, and the detected data can be stored in the mobile phone 2.

  The determination result, the reception level, the position information where the mobile phone 2 is present, the current inclination information of the mobile phone 2, the current angle information of the mobile phone 2, the reception area map, and the mobile phone The model number data representing the two models is transmitted as a set of data to the mobile base station 4 by a transmission means, for example, a transmission circuit, as shown in FIG.

  This transmission can be automatically performed every time the above-described processing is performed after detecting the information. However, from the viewpoint of protecting personal information, it is desirable to allow the user to set whether or not to perform automatic transmission in consideration of the presence of the user of the mobile phone 2 that does not desire transmission. It is also desirable that the user can set whether or not to transmit such information.

  The mobile base station 4 transmits each set of data received from each mobile phone 2 to the management center 10. Based on these sets of data, the management center 10 creates and stores a wide range database (wide range reception area map information) as shown in FIG. Each mobile phone 2 is used in various positions, various inclinations, various angles, and various models according to their users, so that each mobile phone 2 has various inclinations and various various positions. The angle and the reception level in various models are analyzed in correspondence with the position, tilt, angle, and model, and the above-described data is created in each mobile phone 2. Each time these data are transmitted from each mobile phone 2 to the management center 10 via the mobile base station 4, the extensive database of the management center 10 is updated. In other words, the reception level determined by field experiments and simulations at a specific time is not continuously used in a wide database, but the reception level measured relatively recently is included in a wide database. ing.

  In this extensive database, when any one of position information, tilt information, angle information, and model information or an appropriate combination thereof is input as a key, the reception level corresponding to this key and the current state of the mobile phone 2 are displayed. A data map around the position, inclination information at each position on the data map, angle information, model information, reception level, and reception quality determination result (reception area map information) are respectively searched.

  When any one of the cellular phones 2 wants to know whether or not the digital terrestrial television broadcasting can be viewed at the current location of the cellular phone 2, for example, the current location is a daily living area and the mobile phone 2 If the data of the reception area map of the current position is built in the telephone set 2, it is displayed. If not (for example, if the current position is different from the daily living area), the mobile telephone set is displayed. 2, the current position information, inclination information, and angle information of the mobile phone 2 described above are detected, and these are transmitted as a set to the management center 10 via the mobile base station 4. The management center 10 searches a wide range of databases as described above using the transmitted set of information as a key, and receives a reception level corresponding to the set of information as a key and position information around that position, Tilt information, angle information, model number information, reception level, and reception pass / fail judgment result are retrieved and returned as information on the reception area map to the mobile phone 2 that has transmitted the above-mentioned one set of information via the mobile base station 4. .

  In the mobile phone 2 that has received the reply, the mobile phone 2 receives the information from the reception area map that is returned based on any one of the position information, the tilt information, the angle information, the model information, or the appropriate combination. The reception quality judgment result around the position of the device 2 is searched, and the direction of the cellular phone 2 is directed or moved or the angle of the cellular phone 2 is set to receive the digital terrestrial television broadcast signal. It is also determined whether it is possible to perform the determination, and the determination result is displayed on the display unit as shown in FIG. Alternatively, it is also determined in which direction the owner of the mobile phone device 2 can move well, and the result is displayed on the reception area map displayed on the display unit as shown in FIG. If these pieces of information are included in the reception area map information, the display as shown in FIG. 3C or FIG. 3D is performed based on the received reception area map information.

  Note that the reception area map is processed so as to display whether the terrestrial digital television broadcast signal can be viewed at the position represented by the position information and whether it can also be viewed in the vicinity by color coding or the like. In FIG. 4C, a circle indicates an indicator representing the mobile phone 2. The shaded portion is an unreceivable area, and the unshaded portion is a receivable area. is there.

  Therefore, if this reception status notification system is used, if it is not possible to receive at the current position of the mobile phone 2, it is possible to know which direction to move on the characters and the map, and to reduce the claim that it cannot be received. be able to. In addition, the reception level that is the basis for determining whether or not viewing is possible is transmitted from various mobile phones 2 to the management center 10 at regular intervals and stored as a wide range database. Therefore, even if there is a change in the environment, such as when a new building is built in the reception area where these cellular phones 2 are used, the reception level immediately responding to the change is reflected in a wide range of databases. Whether or not the digital terrestrial television broadcast signal can be viewed can be accurately determined by using an extensive database. In addition, the base station management side can easily identify an area with poor reception by investigating a wide range of databases, and basic data for planning a new installation of a relay station can be obtained inexpensively and easily.

  In the above embodiment, the mobile phone 2 is used as a mobile terminal. However, the mobile phone 2 is not limited to this. A mobile terminal having a receiving means for receiving a terrestrial digital television broadcast signal, for example, PHS, PDA, in-vehicle It is also possible to use a receiving device for the use. In addition, since the mobile phone 2 is used, transmission / reception with the management center 10 is performed through the mobile base station 4. However, for example, when the mobile terminal is not a mobile phone, the mobile phone 2 is connected to the management center 10 via the wireless Internet. You can also send and receive. In the above embodiment, the mobile phone 2 creates data based on the reception level, position information, inclination information, and angle information, but at the minimum, creates data based on the position information and the reception level. It is also possible to create data based on position information, inclination information, and reception level, and it is also possible to create data based on position information, angle information, and reception level. In the above embodiment, the terrestrial digital television broadcast signal is used. However, the present invention is not limited to this, and any broadcast signal that can be received by the mobile terminal can be used. For example, a mobile broadcast signal from a satellite can be used.

  In the above embodiment, it is assumed that each terrestrial digital television broadcast signal arrives from the same direction, but actually each terrestrial digital television broadcast signal may arrive from a different direction. In preparation for this case, the reception level of terrestrial digital television broadcast signals of different channels can be individually detected, and the above database can be created for each channel.

  In the above embodiment, the GPS device detects two-dimensional information of latitude and longitude, but if it detects altitude information in addition to this, three-dimensional information can be obtained and received better. The situation can be improved. In addition, although the mobile phone is shown as the mobile terminal in the above embodiment, it can be a mobile body, for example, a terminal device mounted on a vehicle. In this case, high-speed movement can be considered, but it is sufficient to collect the reception level and position information at a minimum for data creation. However, by collecting data on the moving direction and moving speed of the moving body, it is possible to provide detailed reception area information in consideration of the moving direction and moving speed.

It is a schematic block diagram of the reception condition alerting | reporting system of the mobile terminal device of one Embodiment of this invention. It is a figure which shows the flow of the signal in the consultation status alerting | reporting system of FIG. It is a figure which shows the example of a display with the mobile telephone of the reception condition alerting | reporting system of FIG. It is a figure which shows the example of the process performed with the mobile telephone of the reception condition alerting | reporting system of FIG.

Explanation of symbols

2 Mobile phone (mobile terminal)
6 Broadcasting station 10 Management center

Claims (6)

A receiving means provided in the mobile terminal for receiving a broadcast signal;
Level detection means provided in the mobile terminal, for detecting the level of the broadcast signal received by the reception means, and generating level information representing the detected level;
A position detecting means provided in the mobile terminal for generating position information indicating the position of the mobile terminal;
A data creating means provided in the mobile terminal for creating data representing the reception status of the broadcast signal at the position represented by the position information based on the level information and the position information;
Display means provided in the mobile terminal for displaying the data;
A reception status display device provided.   2. The reception status display device according to claim 1, wherein an inclination detecting means for detecting an inclination of the mobile terminal and generating inclination information representing the inclination is provided in the mobile terminal, and the data creating means is configured to receive the level information. And the reception status display apparatus which produces | generates the said data showing the reception status in the inclination of the said mobile terminal in the position of the said mobile terminal based on the said inclination information other than the said positional information.   2. The reception status display device according to claim 1, wherein the mobile terminal includes first and second parts, a receiving antenna for the broadcast signal is provided in the first part, and the first part is the second part. The mobile terminal is configured to be capable of changing an angle, and the mobile terminal is provided with angle detection means for detecting the angle and generating angle information representing the angle, and the data generation means A reception status display device that generates the data representing the reception status at the angle of the mobile terminal at the location of the mobile terminal based on the angle information in addition to the information and the position information.   3. The reception status display device according to claim 2, wherein the mobile terminal is composed of first and second parts, the broadcast signal receiving antenna is provided in the first part, and the first part is the second part. The mobile terminal is configured to be capable of changing an angle, and the mobile terminal is provided with angle detection means for detecting the angle and generating angle information representing the angle, and the data generation means A reception status display device that generates the data representing the reception status at the angle and tilt of the mobile terminal at the position of the mobile terminal based on the angle information in addition to the information, the position information, and the tilt information.   A plurality of mobile terminals comprising the reception status display device according to any one of claims 1 to 4 are configured to be able to communicate with a management center, and the data is transmitted from the plurality of mobile terminals to the management center, respectively. The management center creates a database representing reception status at various positions from each data, each mobile terminal transmits the position information to the management center, and the management center corresponds to the transmitted position information. A reception status notification system for transmitting data representing a reception status to be transmitted to the mobile terminal.   6. The reception status notification system according to claim 5, wherein the database includes a reception area map indicating whether or not the broadcast signal is receivable at the mobile terminal at the position represented by the location information.

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