JP2006109044A5 - - Google Patents

Description

Receiving environment information providing system for receiving device

The present invention relates to a reception environment information providing system receiving device.

  Conventionally, when navigating in a mobile body, the destination is based on map data for the purpose of guiding the destination so that various radio waves being received by a radio wave receiver such as a television or radio can be avoided. Route search to avoid a point or area such as a tunnel where the reception state of the radio wave is expected to deteriorate when a predetermined radio wave is received. A navigation method has been proposed in which navigation is performed by a route.

To provide a system for a moving body that can know in real time a receivable broadcasting station at a moving position of a vehicle and that can smoothly perform a tuning operation of a receiving device even with a driver who is not guided by geography. For this purpose, a position detecting means for detecting the position of the mobile body, a broadcast station data memory storing channel data of receivable broadcast stations for each area, and referring to the broadcast station data memory based on the detected positions. There has been proposed a broadcasting station data detection device for a mobile body, which includes broadcasting station data search means for notifying a user of a receivable broadcasting station channel at a detection position.
JP 11-325941 A JP-A-8-65188

  However, according to the technique described in the above-mentioned Patent Document 1, the radio wave reception state is not obtained on a tunnel obtained on the basis of map data as reception environment information or a road with a viaduct such as a highway on the upper part. It is only a point or area that is expected to be deteriorated, and a point or area where the radio wave reception state is expected to be deteriorated due to weak radio wave intensity on a road without such physical obstacles. There was a problem that the area could not be determined.

  Further, according to the technique described in Patent Document 2, the data of the channels assigned to the same or affiliated broadcasting stations for each area are stored in the broadcasting station data memory as channel map data for each broadcasting station. However, the radio wave reception environment varies depending on the distance from the radio wave relay station for broadcasting, geographical conditions, and the antenna, tuner, control method, etc. that make up the on-board radio wave receiver, Even if channel data that can be received in the current traveling area is searched based only on channel data assigned to each area for the broadcasting station, it cannot be reliably received.

  In addition, the location of broadcasting radio relay stations and geographical conditions such as roads gradually change due to construction that occurs over time, and promptly respond to such changes in reception environment. There is a problem that it is difficult to obtain the latest reception environment information and update the channel map data of the own vehicle stored in the broadcast station data memory to the latest information. For example, it is conceivable that the vehicle is equipped with a monitor device that detects reception environment information such as radio wave reception intensity, and has storage means for storing the reception environment information detected during traveling for each traveling area. It cannot respond to the area.

In view of the conventional drawbacks described above, there a detailed radio wave reception environment of each mobile area always points to realize the receiving condition information providing system of the vehicle-mounted receiving apparatus as the latest received environmental information can provide.

To achieve the above object, a first characteristic feature of the reception environment information providing system receiving device that by the present invention, the electric wave receiving device, and the position recognition means recognizes the position information of the self, the position A reception environment evaluation unit that evaluates a reception environment by the radio wave receiving device corresponding to a position recognized by a recognition unit; a reception environment information generation unit that generates reception environment information based on evaluation data by the reception environment evaluation unit; there the generated receiving condition information in respect Ru Oh provided reception environment information output means for providing the installation reception environment information database outside.

In order to constantly update the reception environment information managed in the reception environment information database described above to the latest data, for example, reception of radio waves in each area based on the position information of a newly installed or transferred broadcasting station or relay station The task of calculating the strength or obtaining the reception failure area based on the updated map data is extremely enormous and cumbersome, and such a task is applied to the road network spread throughout the country. Not realistic. Wherein, the reception environment evaluation unit that evaluates the reception environment by electrostatic wave receiving device recognizes the position information of the self, for example, a position recognition means such as a GPS receiver hands stage, evaluation data and the position according to the reception environment evaluation means generates a reception environment information based on the position data by the recognition means, be configured to provide the generated receiving condition information to the reception environment information database via the reception environment information output means, the reality by mobile nationwide The reception environment information is collected in the reception environment database, and is always updated to the latest reception environment information. As a result, accurate and detailed reception environment information can be provided to the user.

The second feature structure, in addition to the first feature configuration described above, the reception environment information output means comprises data communication means for uploading the received environment information database via the communication line the reception environment information It is in the point that is configured.

In providing the latest reception environment information in the reception environment information database, it is excellent in terms of convenience to improve the configuration so that the data communication means obtains the latest reception environment information via a communication line. For example , if it is configured to connect to the Internet via a wireless communication line such as satellite communication while moving and provide reception environment information to a reception environment information database via a web server, it is easy even when moving In addition, the reception environment information can be uploaded quickly.

The third feature structure, in addition to the first or second feature configuration described above, the reception environment information output means, the portable media the reception environment information from a terminal connected to the reception environment information database It is in the point comprised with the media driver which uploads via.

For example, if a terminal that can be connected to the reception environment information database is installed at convenience stores, drive-ins, gas stations, etc. that are scattered around the city, the latest information can be obtained via the terminals installed at those stores where people visited. Reception environment information data can be provided. In this case, the terminal can be easily written by writing the reception environment information to an SD memory card or the like, which is a card-type storage medium employing a flash memory or the like, or a portable medium such as a flexible disk or compact disk via a media driver. Data can be input to

In the fourth feature configuration, in addition to any one of the first to third feature configurations described above, the reception environment information includes the type information of the radio wave reception device and the reception evaluation for each reception channel by the radio wave reception device. and the information in point composed of information corresponding to the moving area.

As the reception environment information, for example, the type information of the radio wave receiving device by a combination of the antenna and tuner type, the reception control method, etc., and the reception evaluation information such as the reception level information and the reception availability information for each reception channel by the radio wave receiving device, and it is preferable that the composite of the information associated with the mobile area. The reason why the type information of the radio wave receiving device is combined is that even if radio waves in the same frequency band are received at the same point, the reception status varies depending on the configuration of the radio wave receiving device. In this regard, as the type information of the radio wave receiving apparatus, for example, in-vehicle electric wave receiver, different types of radio wave receiving apparatus which is standard with each car type, if the type can be determined by vehicle type vehicle type The information can be substituted for the type information of the radio wave receiver.

As described above, according to the present invention, so that it is possible to realize the receiving condition information providing system always acquired or provided can Ru RECEIVER as the latest reception environment information and detailed radio wave reception environment of each mobile et Rear Became.

Embodiments of the receiving condition information providing system receiving device that by the present invention will be described below. As shown in FIG. 1, the reception environment information providing system of the in-vehicle reception device is provided with a reception environment information database 1 in which reception environment information for each travel area along the domestic road network is stored in a distributed manner in regional bases. , A radio wave receiver 2 for terrestrial digital broadcasting, a reception environment information storage means 3 for storing reception environment information for each traveling area by the radio wave receiver 2, and a reception environment stored in the reception environment information storage means 3 The reception environment information processing means 4 and the like for performing predetermined processing based on the reception environment information of the designated travel area among the information are installed in the vehicle. Each of the above-described blocks is realized by hardware such as a single or plural CPUs, a ROM storing an operation program thereof, and a RAM used for a working area.

  The vehicle includes a map data storage means 5 storing road map data, a GPS receiving means 6 for recognizing position information of the own vehicle, a GPS antenna 6a, and an autonomous navigation means 7 for managing the traveling state of the own vehicle, , Route search means 8 for searching for a route to the destination so as to satisfy the reception condition specified based on the reception environment information of the travel area, and travel state display processing means 9 for displaying the travel position of the vehicle on the map. And an operation unit 26 for setting various operation modes and operating conditions. Each block is controlled by a single or plural CPUs, a ROM storing the operation program and a RAM used for the working area. The navigation device N is configured to guide the vehicle to a designated point.

  Further, the vehicle includes a reception environment evaluation unit 10 that evaluates a reception environment by the radio wave reception device 2 corresponding to a position recognized by the GPS reception unit 6, and an evaluation data by the reception environment evaluation unit 10. A reception environment information generation unit 11 for generating reception environment information, a reception environment information output unit 12 for providing the generated reception environment information to a reception environment information database installed outside, and a reception environment information storage unit 3 Receiving environment information input means 13 for obtaining the receiving environment information stored in the receiving environment information database 1 from the outside. In the same manner, each block is controlled by including a single or plural CPUs, a ROM storing an operation program thereof, and a RAM used for a working area.

  The reception environment information input means 13 includes data communication means for downloading the reception environment information from the reception environment information database 1 via a communication line, and the reception environment information output means 12 includes the data communication means. Is provided with data communication means for uploading the reception environment information to the reception environment information database 1 via a communication line. More specifically, the data communication means is composed of, for example, a wireless terminal compatible with a satellite communication system, configured to connect to the Internet from a satellite communication network via a gateway, and connected via the web server on the Internet. The reception environment information database 1 is accessed, and the required reception environment information is downloaded from the reception environment information database 1 and stored in the reception environment information storage means 3 or generated by the reception environment information generation means 11 in the own vehicle. The reception environment information is uploaded to the reception environment information database 1. Note that the communication line is not limited to the satellite communication line, and other wireless communication lines such as a mobile phone line can be used.

  The radio wave receiving apparatus 2 extracts a digital signal from the selected reception signal, an error correction by selecting a reception antenna 20, a tuner 21 for selecting a transmission channel (frequency band) received via the reception antenna 20. An OFDM demodulator 22 that performs processing and outputs a TS (transport stream) packet; decodes an audio signal from the video / audio packet of the TS packet and outputs the decoded signal to the speaker 24; Is provided with a decoder 23 for outputting to the receiver.

  The display unit 25 is installed on the driver's seat side, and is installed on the rear seat side, a first display unit 25a capable of switching and displaying video information from the radio wave receiving device 2 and guidance map information from the navigation device N. And a second display unit 25b for displaying video information from the radio wave receiver 2, both of which are provided with a touch panel type liquid crystal display device and a video RAM for storing display data on the display device. Yes.

  When the driver operates the operation unit 26 to set the television reception mode, a channel selection screen is displayed on the first display unit 25a. When a favorite channel is selected, the selected transmission channel is selected by the tuner 21. Then, an image is displayed on the display unit 25. When the driver operates the operation unit 26 to set the navigation mode, the GPS reception unit 6 detects the driving state display processing unit 9 based on the map data stored in the map data storage unit 5. A map of the surroundings of the traveling position of the subject vehicle, and a traveling position marker of the subject vehicle by the autonomous navigation means 7 on each of the surrounding maps, which are developed and superimposed on the hierarchical display areas of the video RAM, respectively. Is displayed.

  When the destination setting mode is selected by operating the operation unit 26 in the navigation mode described above, the destination setting screen is displayed on the first display unit 25a, and when the driver sets the destination, the destination is stored in the map data storage means 5. The route search means 8 searches for a travel route from the current position to the destination based on the map data that has been obtained, and the travel state display processing means 9 together with the travel position marker of the host vehicle finds the searched route. It is displayed on the part 25a and guided to the destination. In route search, distance priority search mode that prioritizes distance so that the distance to the destination is the shortest, and time that prioritizes time so that the arrival time to the destination is accelerated by selecting mainly the main road The priority search mode is configured to be selectable. The second display portion 25b can be configured similarly.

  The reception environment information stored in the reception environment information storage means 3 is indicated by the type information of the radio wave receiving device as shown in FIG. 2 (a) and the latitude and longitude as shown in FIG. 2 (b). Consists of travel area information, vehicle speed information in the travel area, and reception level that is reception evaluation data for each reception channel. With such reception environment information, the reception level of each channel in the travel area for each type of radio wave receiver Is configured so that can be grasped.

  The type information of the radio wave receiving device considers that the reception state varies depending on the antenna, tuner, and reception control method even when receiving the same channel in the same traveling area. It has been adopted paying attention to the fact that the degree of influence of multipath and Doppler effect differs depending on the type and number of directional antennas and the number of directional antennas and the control method such as diversity control or adaptive control. Therefore, the type information may be a radio wave receiver or model data of components constituting the radio wave receiver as long as such performance can be grasped, and the radio wave receiver mounted on the vehicle type can be specified. If it is a thing, it may be vehicle type data.

  The reception environment information processing means 4 is based on the reception environment information stored in the reception environment information storage means 3 and the designated travel area information which is the travel position of the host vehicle received by the GPS reception means 6. The reception environment information in the traveling area is displayed on the display unit 25. More specifically, when the reception environment information display mode is selected by operating the operation unit 26 in the television reception mode described above, the display condition setting mode is displayed on the first display unit 25a, and the display condition selected from the display screen is displayed. The reception environment information corresponding to the travel position input from the GPS reception means 6 is read from the reception environment information storage means 3 and displayed on the display unit 25 below.

  Here, the reception environment information processing means 4 stores the position information designated by the driver or the like on the map stored in the map data storage means 5 and displayed by the running state display processing means 9. The reception environment information of the area can be read from the reception environment information storage means 3 and displayed. In this case, the reception environment at the intermediate position until the destination or the destination is reached can also be grasped.

  Further, the designated travel area need not be limited to the designated position itself, and it is also possible to display the reception environment information of the range with the range of a predetermined distance from the position in the traveling direction as the designated travel area. As the predetermined distance, for example, a range such as a range of 10 km can be specified, and it is also possible to calculate the range from the current traveling speed until it reaches 10 minutes later. This can be realized by setting an execution program of a CPU that operates as the reception environment information processing means 4.

  As the display conditions, in the current traveling area, each condition of display of the reception level for the selected channel, display of the reception level for all channels, and display of the reception level of receivable channels is selected, and the selected condition As shown in FIG. 3, the display mode in FIG. 3 is a mode in which a plurality of bars for identifying the levels are displayed on the side of the antenna figure for each channel (for example, the higher the reception level, the more the number of bars is increased. As shown in FIG. 4, the road or area is displayed in a different color according to the reception level (for example, the higher the reception level, the more warm the color is displayed), or FIG. As shown, a display mode or the like in which the reception environment information is reflected in the map data is configured to be selectable so that an area with a poor reception level is surrounded by a frame. Here, even when the latter display mode is selected, priority mode display means for preferentially displaying in the former display mode when a television image is displayed is provided.

  The latter display mode is suitable for display of the reception level relating to the selected channel, but may be displayed with different colors so that it can be identified for each channel even under other display conditions. Furthermore, the user interface may be configured so that the operator himself can set the display color. As a user interface, an operation button for setting or selecting is displayed on the screen of the display unit 25, the operation of the operation button is detected by the touch panel, and a process corresponding to the operation button is executed. ) Method can be adopted.

  Thus, based on the reception environment information displayed on the display unit 25, it is possible to appropriately select a channel with a good reception environment that matches the radio wave receiver mounted on the vehicle, so that a good broadcast video and You will be able to enjoy the audio.

  In addition, the reception environment information processing means 4 may display other messages as a display process of the reception environment information. In addition to the display process, the reception environment information processing means 4 performs a guidance process by voice, and performs a guidance process by voice and display. The thing etc. may be sufficient.

  Furthermore, the reception environment information processing means 4 reads out reception environment information for the channel selected for each searched route from the reception environment information storage means 3 when the route search means 8 searches for a route to the destination. By providing, it is possible to guide to the destination through a route with a good reception environment of the selected channel. That is, the route search means 8 and the reception environment information processing means 4 constitute reception priority route search means for searching for a route having a better reception environment in preference to the above-mentioned distance priority search mode and time priority search mode. It is.

  The reception environment evaluation unit 10 and the reception environment information generation unit 11 will be described below. The reception environment evaluation unit 10 divides the reception level selected based on the number of error correction processes per unit time and the error correction availability state into a plurality of stages during the error correction process by the OFDM demodulator 22. Output to the reception environment information generating means 11 at predetermined time intervals. The reception environment information generation means 11 receives the received level for the selected selected channel, the travel position data and travel speed data obtained from the autonomous navigation means 7, and the type information of the radio wave receiver 2 (whether it is set in advance). Are stored in the internal memory as sampling reception environment information.

  The stored sampling reception environment information is uploaded to the reception environment information database 1 via a communication line periodically or when operated by the operator by the reception environment information output means 12. In this way, the sampling reception environment information accumulated in each vehicle is uploaded to the reception environment information database 1, so that the reception environment information in the reception environment information database 1 is always updated to the latest data. The reception environment information is provided to each vehicle.

  Another embodiment will be described below. In the above description, the sampling reception environment information is stored in the internal memory of the reception environment information generation unit 11. However, the sampling reception environment information is configured to be stored in the sampling reception environment information storage area of the reception environment information storage unit 3. Is also possible. In this case, it goes without saying that the sampling reception environment information can also be used as information for updating the reception environment information of the own vehicle.

  In the above-described embodiment, the reception environment information processing means 4 has been described to perform various processes based on the reception environment information downloaded from the reception environment information database 1, but as the reception environment information, in addition to this, The reception environment information generation means 11 generates reception environment information based on radio wave obstacle information such as a tunnel obtained from the map data stored in the map data storage means 5, or as shown in FIG. The radio wave intensity data calculated based on the distance from the position of the radio relay station to the own vehicle obtained from the map data stored in the map data storage means 5, or the presence of obstacles due to buildings or natural terrain existing between them Further, the angle between the vehicle and the radio relay station (the antenna angle, the travel direction data of the vehicle from the autonomous navigation means 7). Data is obtained, and generates reception environment information based on the data computed from) may be one that performs various processes based on their reception environment information.

  The storage device constituting the reception environment information storage means 3 is not particularly limited, and can be appropriately configured with a hard disk, a magneto-optical disk, a semiconductor memory, or the like. Then, by installing the reception environment information storage means 3 so as to be detachable from the vehicle, it is possible to construct a reception environment information providing system by installing it in a reception device of another vehicle.

  In the above-described embodiment, the reception environment information output unit 12 and the reception environment information input unit 13 are configured by data communication units via a wireless communication line. However, the reception environment information input unit 12 is A media driver that downloads reception environment information from a terminal connected to the reception environment information database 1 via a portable medium is configured to update the reception environment information via a portable memory device such as a memory card. The reception environment information output means 13 may further comprise a media driver for uploading the reception environment information from a terminal connected to the reception environment information database 1 via a portable memory device. It may be configured.

  According to the above-described configuration, for example, terminals that can be connected to the reception environment information database are installed in convenience stores, drive-ins, gas stations, etc. that are scattered in the city, and installed in those stores where the driver stopped. Thus, the latest reception environment information data can be acquired via the received terminals, or the latest sampling reception environment information can be provided as update reception environment information via these terminals.

  Needless to say, a system that achieves a certain effect can be realized as long as the reception environment information includes reception level data for each channel corresponding to the traveling area.

  In the above-described embodiment, the radio wave receiving apparatus that receives digital terrestrial broadcasting has been described as an example. However, the object of the reception environment information providing system for the in-vehicle receiving apparatus according to the present invention is not limited to this, and FM, AM The present invention can also be applied to radio wave receivers that receive radio broadcasts, and radio wave receivers such as mobile phones.

  The embodiment described above is merely one embodiment of the present invention, and it is needless to say that the specific configuration of each block can be changed and designed as appropriate within the scope of the effects of the present invention.

Block configuration diagram of the reception environment information providing system of the in-vehicle receiver Illustration of reception environment information Explanatory drawing of display mode of reception environment information Explanatory drawing of display mode of reception environment information Explanatory drawing of display mode of reception environment information Explanatory drawing of the reception environment information generation process showing another embodiment

Explanation of symbols

1: reception environment information database 2: radio wave receiver 3: reception environment information storage means 4: reception environment information processing means 5: map data storage means 6: GPS reception means 7: autonomous navigation means 8: route search means 9: traveling state Display processing means 10: Reception environment evaluation means 11: Reception environment information generation means 12: Reception environment information output means 13: Reception environment information input means N: Navigation device

Claims (4)

A radio wave receiver, position recognition means for recognizing its own position information, reception environment evaluation means for evaluating a reception environment by the radio wave receiver corresponding to the position recognized by the position recognition means, and the reception environment evaluation a reception environment information generating means, Ru Oh provided reception environment information output means for providing the generated receiving condition information in the installed reception environment information database to an external receiving to generate receiving condition information based on the evaluation data by means Receiving environment information providing system for communication equipment. The receiving condition information output means, the receiving condition information providing system receiving apparatus according to claim 1, wherein is configured to include a data communication means for uploading the received environment information database via the communication line the reception environment information . The receiving condition information output means receiving as claimed in claim 1 or 2, wherein the reception environment information from a terminal connected to the reception environment information database is configured to include a media driver for uploading via the portable media Equipment reception environment information provision system. The reception environment information, according to any of 3 composed claim 1 wherein the type information and the information and receiving evaluation information associated with the mobile e rear each reception channel according to the radio wave reception device of the radio wave receiving apparatus receive environmental information providing system of the receiver.