JP4219054B2 - In-vehicle information communication system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an in-vehicle information communication system, and in particular, performs information on a broadcast service by performing narrow-area communication between an in-vehicle device equipped with a communication type car navigation system, a commercial in-vehicle information system, a car audio system, and the like, and a center system. The specific broadcast service can be received and selected according to the broadcast service information.
[0002]
[Prior art]
In an in-vehicle device equipped with a communication-type car navigation system, a commercial in-vehicle information system, a car audio system, etc., in order to select a function of the in-vehicle device so that a specific broadcasting service such as a highway radio can be received, it has been conventionally performed manually by hand. The specific broadcast service can be selected and received based on the information selected by the user in advance for selection or a position detection function such as GPS and an external storage device such as a CD-ROM.
[0003]
[Problems to be solved by the invention]
However, in the function selection method of the in-vehicle device so that the conventional specific broadcasting service can be received, there is a problem that the function can be selected only under the conditions when information is set in advance in the in-vehicle device. In addition, the mobile broadcast service has a problem that it is not possible to select a function of the broadcast service that reflects the locality and the latest information within the in-vehicle device.
[0004]
In order to solve the above-described problems, the present invention acquires in-vehicle information from roadside devices, and in-vehicle information that enables an in-vehicle device to dynamically select and receive a specific broadcasting service according to the broadcast service information. An object of the present invention is to provide a communication system.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a roadside device that detects that a vehicle has entered a narrow area communication area by establishing narrow area communication and transmits broadcast information that can be received in the traveling direction of the vehicle. A vehicle-mounted device that is capable of communicating with the broadcast device, and when the received broadcast information is analyzed and the function conditions that can be received for a specific broadcast service set in advance are matched, the broadcast receiving unit is controlled to specify a specified frequency. To enable reception of a specific broadcast service and when it is out of the broadcast area due to a decrease in reception sensitivity, or when another broadcast reception operation is performed, or from the roadside device In response to the instruction, the broadcast reception designated by the roadside device is terminated.
[0006]
By configuring in this way, the present invention acquires broadcast information from a roadside device by narrow area communication (DSRC) only when a vehicle enters a specific position within a narrow area communication (DSRC) area, thereby Function selection can be performed so that a specific broadcast service such as a highway radio can be received.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 3.
[0008]
(First embodiment)
FIG. 1 is a schematic block diagram showing the configuration of the in-vehicle information communication apparatus of the in-vehicle information communication system according to the first embodiment of the present invention. In FIG. 1, an in-vehicle information communication device (in-vehicle device) 10 includes a broadcast receiving unit 12 having a function of receiving a signal of a frequency designated by an instruction from the information processing control unit 11 for radio (AM, FM) broadcasting or TV broadcasting. And an output unit 13 having a function of converting a signal received by the broadcast receiving unit 12 into audio or video, etc., based on broadcast station setting information stored in the control information storage unit 14 by selecting a broadcast station with a button or the like An operation / display unit 15 having an operation function for selecting a channel and a function for displaying the status (reception sensitivity, reception station (frequency), etc.) of the broadcast receiving unit 12, and a function for controlling the entire in-vehicle device And also has a function of controlling the broadcast receiving unit 12 by operating the switch of the operation / display unit 15, and further performs control of the communication control unit 16 and processing of received information, and control information as control information. The function to store in the storage unit 14 In addition, the information processing control unit 11 having a function of controlling the broadcast receiving unit 12 based on the information received from the communication control unit 16 and the information in the control information storage unit 14, and the narrow area communication (DSRC), A communication control unit 16 having a function of transmitting / receiving information to / from the roadside device 20, a function of accumulating information received from the roadside device 20, and a function of storing processing conditions for the received information And a control information storage unit 14 having a function of reading and writing various information according to the control of the information processing control unit 11.
[0009]
FIG. 2 is a schematic block diagram showing the configuration of the roadside device of the in-vehicle information communication system according to the first embodiment of the present invention. In FIG. 2, the roadside device 20 has a function of storing the broadcast setting information from the center device or setting device 30 in the information storage unit 23 via the communication line control unit 22, and also stores the information in the information storage unit 23. An information processing control unit 21 having a function of transmitting to the in-vehicle device 10 using the narrow area communication (DSRC) via the communication control unit 24 and a function of controlling the entire roadside device; Communication control, and the function of detecting that a vehicle has entered the communication area, and in accordance with instructions from the information processing control unit 21, information such as broadcast setting information is controlled in narrow area communication (DSRC). The communication control unit 24 having a function of performing and transmitting to the in-vehicle device 10 and the function of storing the information from the center device or setting device 30 according to the control of the information processing control unit 21, and storing the stored information Read according to the control of the information processing control unit 21 And a communication line control unit 22 having a line control function for transmitting and receiving information via a communication line (private line, public line, etc.) and a center device or setting device 30. .
[0010]
Next, the operation of the in-vehicle information communication system according to the first embodiment of the present invention will be described with reference to FIG. In FIG. 3, first, the center device or setting device 30 transmits information on broadcast contents (eg, traffic information) and broadcast conditions (reception frequency, broadcast area information, broadcast time zone, etc.) to the roadside device 20. .
[0011]
The roadside device 20 stores the received information. The roadside device 20 detects that the vehicle equipped with the vehicle-mounted device 10 has entered the narrow area communication area by establishing the narrow area communication (DSRC) communication. The roadside device 20 transmits broadcast information that can be received in the traveling direction of the vehicle to the in-vehicle device 10.
[0012]
When the in-vehicle device 10 analyzes the received broadcast information and determines that it matches the function conditions that can be received for the specific broadcast service set in advance, the in-vehicle device 10 controls the broadcast receiving unit 12 to set the specified frequency. Receive broadcasts. (Example: If highway radio (traffic information, etc.) can be received, automatic reception is set)
In addition, the in-vehicle device 10 is determined to be out of the broadcast area due to a decrease in reception sensitivity, etc., or when another operation for receiving a broadcast is performed, or according to an end instruction from the roadside device 20 as in the setting. Then, the broadcast reception designated by the roadside device 20 is terminated.
[0013]
Thus, according to the in-vehicle information communication system of the first embodiment of the present invention, it is possible to automatically select a specific broadcast service such as a highway radio.
[0014]
(Second Embodiment)
The operation of the in-vehicle information communication system according to the second embodiment of the present invention will be described. Note that the configuration of the in-vehicle information communication device and the roadside device that constitute the in-vehicle information communication system according to the second embodiment of the present invention is the same as the in-vehicle information communication device that constitutes the in-vehicle information communication system according to the first embodiment, and Since the configuration is the same as that of the roadside device, the description thereof is omitted here.
[0015]
In FIG. 3, first, the center device or setting device 30 transmits information on a broadcasting station (name, affiliated station information) and broadcasting conditions (receiving frequency, broadcasting area information, broadcasting time zone, etc.) to the roadside device 20. .
[0016]
The roadside device 20 stores the received information. The roadside device 20 detects that the vehicle equipped with the vehicle-mounted device 10 has entered the narrow area communication area by establishing the narrow area communication (DSRC) communication. Further, the roadside device 20 transmits broadcast information that can be received in the traveling direction of the vehicle to the in-vehicle device 10.
[0017]
The in-vehicle device 10 analyzes the received broadcast information and stores it in the control information storage unit 14 as information necessary for selection by the operation unit 15. If it is determined that the preset condition is satisfied, the broadcast receiving unit 12 is controlled to set the designated frequency and receive the broadcast.
[0018]
As described above, according to the in-vehicle information communication system of the second embodiment of the present invention, in addition to the preset broadcasting station, a station capable of receiving a broadcast at the current location can be automatically set. Can alleviate the burden. In addition, the number of local broadcasting stations such as mini-FMs is increasing, and it is possible to easily cope with the latest operating status of the area.
[0019]
(Third embodiment)
The operation of the in-vehicle information communication system according to the third embodiment of the present invention will be described. The in-vehicle information communication device and the roadside device that configure the in-vehicle information communication system according to the third embodiment of the present invention are configured in the in-vehicle information communication device and the in-vehicle information communication system according to the first embodiment. Since the configuration is the same as that of the roadside device, the description thereof is omitted here.
[0020]
In FIG. 3, first, the center device or setting device 30 transmits information on a broadcasting station (name, affiliated station information) and broadcasting conditions (receiving frequency, broadcasting area information, broadcasting time zone, etc.) to the roadside device 20. .
[0021]
The roadside device 20 stores the received information. The roadside device 20 detects that the vehicle equipped with the vehicle-mounted device 10 has entered the narrow area communication area by establishing the narrow area communication (DSRC) communication. Furthermore, the roadside device 20 transmits to the in-vehicle device 10 broadcast information that can be continuously received by the affiliated broadcasting station in the traveling direction of the vehicle.
[0022]
The in-vehicle device 10 analyzes the received broadcast information and stores it in the control information storage unit 14 as information necessary for selection by the operation unit 15. Also, if it is determined that the preset condition is met, the broadcast receiving unit 12 is controlled to automatically set the frequency of the broadcast station to continuously use the broadcast content and continuously receive the broadcast content. .
[0023]
As described above, according to the in-vehicle information communication system of the third embodiment of the present invention, it is possible to continuously receive the affiliated broadcasting station. In the movement across the broadcasting area such as when moving over a long distance, the automatic tracking is performed. It is possible to reduce the burden on the driver. In addition, it is possible to receive the same broadcast across the broadcast area.
[0024]
【The invention's effect】
As described above, the in-vehicle information communication system according to the present invention detects that the vehicle has entered the narrow area communication area when the communication of the narrow area communication is established and can broadcast to the in-vehicle device in the traveling direction of the vehicle. The roadside device that transmits information and the received broadcast information are analyzed, and when the function conditions that can be received for a specific broadcast service set in advance are matched, the broadcast receiving unit is controlled and set to a specified frequency. When the specified broadcast service can be received and the broadcast area is out of the broadcasting area due to a decrease in reception sensitivity, or when another operation for receiving a broadcast is performed, or when the setting is made, the roadside device The vehicle-mounted device terminates the broadcast reception designated by the roadside device in response to an end instruction from the roadside device.
[0025]
By configuring in this way, the present invention acquires broadcast information from a roadside device by narrow area communication (DSRC) only when a vehicle enters a specific position within a narrow area communication (DSRC) area, thereby Function selection can be performed so that a specific broadcast service such as a highway radio can be received.
[Brief description of the drawings]
FIG. 1 is a schematic block diagram showing a configuration of an in-vehicle information communication device of an in-vehicle information communication system according to each embodiment of the present invention;
FIG. 2 is a schematic block diagram showing a configuration of a roadside device of the in-vehicle information communication system in each embodiment of the present invention;
FIG. 3 is a diagram for explaining common operations of the in-vehicle information communication system according to each embodiment of the present invention.
[Explanation of symbols]
10 In-vehicle device (in-vehicle device)
11 Information processing control unit
12 Broadcast receiver
13 Output section
14 Control information storage
15 Operation / display section
16 Communication control unit
20 Roadside equipment
21 Information processing control unit
22 Communication line controller
23 Information storage
24 Communication control unit
30 Center device or setting device

Claims (1)

Vehicle is detected by entering that communication has been established narrowband communication on the narrow area communication area, a communicable vehicle device and the road device for transmitting receivable broadcast information traveling direction of the vehicles, The received broadcast information is analyzed, and if it matches with a preset functional condition that can be received by the specific broadcast service, the specific broadcast service can be received by controlling the broadcast receiving unit to set the specified frequency. both If you way, when deviated from a broadcast area by such as a decrease in reception sensitivity, or, when the operation Me other other broadcast receiving, or by end instruction from the previous SL road device, the road device Exit the specified broadcast received from, the car NoSo location.

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