JP2016082409A - Radio communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication device capable of easily designating a party to talk with in a short-range radio communication.SOLUTION: An own radio communication part (short-range radio communication part 11) communicates with another radio communication part and receives positional information of the other radio communication part and predetermined information about the other radio communication part. An image processing part 17 generates image information by imaging the predetermined information received by the own radio communication part, determines a position to display the image information on a display part 18 on the basis of the own positional information and the positional information of the other radio communication part received by the own radio communication part, and displays the image information at the determined position on the display part 18. If the predetermined information is information that the other radio communication part permits a communication with a radio communication part other than the other radio communication part, the image processing part 17 generates image information for the own radio communication part to designate the other radio communication part as a communication partner and displays the generated image information on the display part 18.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wireless communication apparatus capable of making a call with a partner who wants to make a call by short-range wireless communication.

  One type of short-range wireless communication is vehicle-to-vehicle communication. According to inter-vehicle communication, when a plurality of vehicles equipped with wireless communication devices are within a predetermined distance, road conditions based on the position and speed of the own vehicle can be transmitted as information to the following vehicle (patent) Reference 1).

JP 2004-80383 A

  For example, there are cases where a plurality of other vehicles approach the own vehicle almost simultaneously and the own vehicle can communicate with each of the other plurality of vehicles. In such a case, it is desirable to be able to make a call rather than simply transmitting predetermined information as described in Patent Document 1. In addition, it is desirable to be able to easily specify another vehicle to be talked on.

  Here, vehicle-to-vehicle communication between vehicles equipped with a wireless communication device is taken as an example, but the same applies when a plurality of persons holding the wireless communication device approach almost simultaneously.

  An object of the present invention is to provide a wireless communication apparatus that can easily designate a partner to be talked when trying to talk to a partner who wants to talk by short-range wireless communication.

  The present invention is configured to communicate with the other wireless communication unit when the position detection unit for detecting its own position information and the other wireless communication unit are located within a predetermined distance, and A self-communication unit that receives position information of a part and predetermined information about the other wireless communication unit, and generates image information by imaging the predetermined information received by the self-wireless communication unit. Based on the position information of the wireless communication unit and the position information of the other wireless communication unit received by the own wireless communication unit, the position for displaying the image information on the display unit is determined, and the determined position on the display unit is determined. An image processing unit that displays the image information, wherein the predetermined information is information that allows the other wireless communication unit to communicate with a wireless communication unit other than the other wireless communication unit. The own wireless communication unit is not connected to the other wireless communication unit. And it generates image information for designating the parts as the communication partner, to provide a wireless communication apparatus characterized by displaying on the display unit.

  According to the wireless communication apparatus of the present invention, when trying to make a call with a partner who wants to make a call by short-range wireless communication, it is possible to easily designate the partner to make a call.

It is a block diagram which shows the radio | wireless communication apparatus of one Embodiment. It is a figure which shows roughly the transmission / reception data which the radio | wireless communication apparatus of one Embodiment transmits / receives with another radio | wireless communication apparatus. It is a bird's-eye view which shows an example when the own vehicle and another vehicle approach within the predetermined distance. It is a figure which shows the 1st example of the image displayed on the display part of the radio | wireless communication apparatus of one Embodiment. It is an overhead view which shows the other example when the own vehicle and another vehicle approach within the predetermined distance. It is a figure which shows the 2nd example of the image displayed on the display part of the radio | wireless communication apparatus of one Embodiment. It is a figure which shows the 3rd example of the image displayed on the display part of the radio | wireless communication apparatus of one Embodiment.

  Hereinafter, a wireless communication apparatus according to an embodiment will be described with reference to the accompanying drawings. This embodiment exemplifies a case where a wireless communication device is mounted on a vehicle and a call is made between the vehicles by short-range wireless communication.

  First, the configuration and operation of the wireless communication apparatus 100 of this embodiment will be described with reference to FIG. In FIG. 1, a control unit 10 controls the entire wireless communication apparatus. The control unit 10 includes a short-range wireless communication unit 11, an individual information holding unit 12, a position information acquisition unit 13, an image generation unit 14, an image processing unit 17, a display unit 18, a touch panel 19, an audio processing unit 20, and a storage unit 23. Is connected.

  A camera 15, a map information holding unit 16, and a display unit 18 are connected to the image processing unit 17. The image processing unit 17 includes an image composition unit 171. A speaker 21 and a microphone 22 are connected to the sound processing unit 20.

  The individual information holding unit 12 holds identification information for uniquely identifying the wireless communication device 100 and capability information that the wireless communication device 100 has. The capability information is, for example, information indicating whether the device has the capability of transmitting / receiving only audio data or the capability of transmitting / receiving both audio data and image data.

  The position information acquisition unit 13 receives, for example, positioning radio waves from a satellite for the Global Navigation Satellite System (GNSS), and thereby position information of the vehicle on which the wireless communication device 100 is mounted. To get. The vehicle position information is substantially position information of the wireless communication device 100.

  GNSS is GPS (Global Positioning System) as an example. Instead of receiving radio waves from a GNSS satellite or in addition to receiving radio waves from a GNSS satellite, vehicle position information may be acquired by a gyro (not shown).

  The position information acquired by the position information acquisition unit 13 is not limited to outdoor position information, and may be indoor position information. The position information acquisition unit 13 is a position detection unit that detects its own position information.

  In addition, the position information includes direction information obtained by positioning of position information at a predetermined time interval (that is, direction information) or direction information obtained from a device capable of measuring the direction such as an electronic compass (not shown). Also good.

  The image generation unit 14 generates image information to be described later under the control of the control unit 10. The image information generated by the image generation unit 14 is input to the image processing unit 17.

  The captured image information captured by the camera 15 is input to the image processing unit 17. The camera 15 is attached, for example, in the vicinity of the vehicle rearview mirror, and photographs the front of the vehicle. You may comprise the camera 15 with the front camera which image | photographs the front of a vehicle, and the rear camera which image | photographs the back of a vehicle.

  The camera 15 may be a plurality of cameras for generating a pseudo bird's-eye view image of the vehicle viewed from above the vehicle on which the wireless communication device 100 is mounted. In this case, the camera 15 includes a front camera that captures the front of the vehicle, a rear camera that captures the rear of the vehicle, and a side camera that captures both sides of the vehicle.

  The map information holding unit 16 holds map information for navigation. The control unit 10 controls the map information holding unit 16 so as to read out map information corresponding to the position information from the map information holding unit 16. The map information is input to the image processing unit 17.

  The image processing unit 17 can display the captured image information output from the camera 15 on the display unit 18. The image processing unit 17 can display map information on the display unit 18.

  When the camera 15 includes a front camera, a rear camera, and a side camera, the image composition unit 171 can synthesize the captured image information from these cameras to generate overhead image information. The image processing unit 17 can display the overhead image on the display unit 18.

  The short-range wireless communication unit 11 communicates with a wireless communication device mounted on another vehicle (hereinafter referred to as another vehicle). The communication between the short-range wireless communication unit 11 and the wireless communication device installed in another vehicle may be a half-duplex communication method or a full-duplex communication method.

  The standard of vehicle-to-vehicle communication by the short-range wireless communication unit 11 is arbitrary. The standard of inter-vehicle communication may be, for example, DSRC (Dedicated Short Range Communication) adopted in Japan or IEEE802.11p adopted in Europe and America.

  The inter-vehicle communication may be any communication referred to as other P2P (peer-to-peer) communication. For example, communication called Wi-Fi Direct may be used, or communication using Bluetooth (registered trademark) may be used.

  The communication between the short-range wireless communication unit 11 and another wireless communication device may be one-to-one communication in which the short-range wireless communication unit 11 communicates with one other wireless communication device, or short-range wireless communication. The unit 11 may be a one-to-multiple communication that communicates with a plurality of other wireless communication devices.

  When the short-range wireless communication unit 11 receives captured image information or overhead image information transmitted by a wireless communication device mounted on another vehicle, the received captured image information or overhead image information is transmitted via the control unit 10. Input to the image processing unit 17. At this time, the position information of the other vehicle is received together with the captured image information or the overhead image information. It is preferable that the direction information is added to the position information of the other vehicle.

  Note that the wireless communication device mounted in another vehicle may have the same configuration as the wireless communication device 100 shown in FIG. 1 or a different configuration.

  The image composition unit 171 can synthesize the captured image information of the own vehicle (hereinafter, the own vehicle) and the received captured image information. The image composition unit 171 creates a composite image in which the positional relationship of the other vehicle with respect to the position of the own vehicle is clarified based on the position information and direction information of the own vehicle and the position information of the other vehicle.

  An example of the composite image is an overhead image. In addition, a composite image can be generated in the same manner even when overhead image information is obtained from another vehicle. The image composition unit 171 can determine the positions where the bird's-eye view image of the own vehicle and the received bird's-eye view image are arranged based on the position information of the own vehicle and the position information and direction information of the other vehicle.

  Further, the image composition unit 171 clarifies the direction and positional relationship of the other vehicle with respect to the position of the own vehicle on a predetermined image such as an enlarged view of the intersection stored in the map information holding unit 16. Images (icons) can be generated and combined.

  Based on the control by the control unit 10, the short-range wireless communication unit 11 can transmit captured image information or overhead image information of the own vehicle to a wireless communication device mounted on another vehicle. At this time, the position information of the own vehicle is transmitted together with the captured image information or the overhead image information. Orientation information is preferably added to the position information of the own vehicle.

  The audio data received by the short-range wireless communication unit 11 is input to the audio processing unit 20 via the control unit 10. The audio processing unit 20 performs processing such as D / A conversion on the audio data and causes the speaker 21 to generate a sound.

  The microphone 22 supplies an audio signal obtained by collecting a call voice from the driver (or a passenger) of the own vehicle to the audio processing unit 20. The audio processing unit 20 performs processing such as A / D conversion on the audio signal to generate audio data. The short-range wireless communication unit 11 can transmit voice data to a wireless communication device mounted on another vehicle based on control by the control unit 10.

  FIG. 2 schematically shows transmission data that the short-range wireless communication unit 11 transmits to another wireless communication device or reception data (transmission / reception data) that the short-range wireless communication unit 11 receives from another wireless communication device. ing.

  As shown in FIG. 2, transmission / reception data includes self identification information 111, identification information 112 for designating a communication destination, capability information 113, position information 114, audio data 115, and image data 116. Including.

  In a state where the communication destination is not designated, the transmission / reception data does not include the identification information 112. A method of specifying the communication destination will be described later. The transmitted / received data may not include the audio data 115 or may not include the image data 116.

  The image data 116 may be data captured by the camera 15 or data indicating an overhead image generated by the image composition unit 171.

  When the short-range wireless communication unit 11 receives the transmission data illustrated in FIG. 2 transmitted by another wireless communication device, the control unit 10 causes the storage unit 23 to store the identification information 111, the capability information 113, and the position information 114. . The control unit 10 may hold the identification information 111, the capability information 113, and the position information 114 in the control unit 10 itself.

  The control unit 10 supplies the audio data 115 to the audio processing unit 20 and supplies the image data 116 to the image processing unit 17. As described above, the voice based on the received voice data 115 is generated by the speaker 21.

  As shown in FIG. 3, when the own vehicle 201 equipped with the wireless communication device 100 approaches the intersection 200, it is assumed that the other vehicles 202 to 204 exist at a distance where inter-vehicle communication is possible. However, it is assumed that the other vehicles 202, 203, and 204 are vehicles equipped with wireless communication devices.

  The other vehicles 202 and 204 are assumed to have the ability to transmit and receive both audio data and image data. In addition, in FIG. 3, the own vehicle 201 and the other vehicles 202 to 204 are shown enlarged regardless of the lane in which each travels.

  FIG. 4 shows a first example of an image displayed on the display unit 18 when the host vehicle 201 and the other vehicles 202 to 204 are in the state shown in FIG. 1st example shows the image comprised so that the own vehicle 201 can select any of the other vehicles 202-204 as the object to call using the map information read from the map information holding | maintenance part 16. FIG. ing.

  The control unit 10 receives the identification information, capability information, and position information of the wireless communication device 100 mounted in the other vehicles 202 to 204 by the short-range wireless communication unit 11 communicating with the other vehicles 202 to 204, respectively. . When the short-range wireless communication unit 11 performs one-to-one communication, the short-range wireless communication unit 11 may switch the communication destination every predetermined time.

  The image generation unit 14 generates vehicle images IM202, IM203, and IM204 that indicate the vehicles of the other vehicles 202 to 204, respectively. The generated vehicle images IM202, IM203, and IM204 are generated so that the traveling direction becomes clear based on the direction information sent together with the position information. Specifically, the IM202 is a vehicle image whose front is the traveling direction on the display unit 18, the IM203 is a vehicle image whose traveling direction is the right, and the IM204 is the traveling direction. It is the vehicle image which becomes the left.

  In addition, since the wireless communication device 100 of the other vehicles 202 and 204 has the ability to transmit and receive audio data, the image generation unit 14 generates an icon IC1 indicating that it has the capability to transmit and receive audio data. That is, the capability information of the wireless communication device 100 of the other vehicles 202 and 204 is imaged.

  As shown in FIG. 4, the image composition unit 171 is based on the position information obtained by communicating the vehicle images IM202, IM203, IM204 and the icon IC1 with the enlarged map MP near the intersection 200 based on the map information. Superimpose on the corresponding position on the screen.

  The enlarged view MP shown in FIG. 4 is an intersection with good visibility, and there are other vehicles on the road. Even in the case of an enlarged view showing an intersection where there is a building and the other vehicles 203 and 204 are not visible, the other vehicles 203 and 204 should be present on the enlarged view MP, that is, superimposed on the building. IM203 and IM204 may be displayed.

  FIG. 4 is a view looking down obliquely from above, but it may be an overhead view as seen from above like a general map. In the first example, an image based on map information may be used.

  The positions where the vehicle images IM202 to 204 are displayed are always displayed at corresponding positions on the enlarged view MP based on the position information communicated via the short-range wireless communication unit 11.

  The driver (or passenger) of the host vehicle 201 touches any one of the icons IC1 of the other vehicles 202 and 204 that can be selected as an object to be talked with the touch panel 19 to select it as a subject to be communicated by inter-vehicle communication. Can do.

  The image processing unit 17 may display only an icon of another car that can make a call on the display unit 18 or display an image in which an icon of another car that can make a call and an icon of a car that cannot make a call are different. Also good.

  The icon IC1 is image information for the short-range wireless communication unit 11 to designate another wireless communication device as a call partner. The image composition unit 171 displays image information for designating as a call partner when the predetermined information transmitted by another wireless communication device and received by the short-range wireless communication unit 11 is information that permits a call. What is necessary is just to display on the part 18.

  The information for permitting communication is the capability information 113 in FIG. 2 and is mainly information indicating whether or not the voice communication function is installed or whether or not the voice communication function is in an operating state.

  When the driver (or the passenger) of the own vehicle 201 touches any of the icons IC1 and selects it as an object to be talked, a call with the driver (or the passenger) of the selected vehicle is started.

  It is preferable that the image generation unit 14 makes the icon IC1 of the other vehicle selected as the subject to call different from the icon IC1 of the other vehicle that has not been selected. For example, the image generating unit 14 changes any one of the color, size, and shape of the icon IC1 of the selected other vehicle, or a combination thereof. The image generation unit 14 may add an icon different from the icon IC1 to the selected other vehicle.

  The image processing unit 17 may change any of the color, size, and shape of the icon IC1 of the selected other vehicle, or a combination thereof.

  The image processing unit 17 may display on the display unit 18 an image in a state where the icon of the other vehicle selected as an object to be talked and the icon of the other vehicle not selected are different.

  For example, when the other vehicle 202 is selected as an object to be talked, the control unit 10 controls the short-range wireless communication unit 11 to transmit the transmission data in which the identification information of the other vehicle 202 is described in the identification information 112 of the communication destination. .

  When the wireless communication device of the other vehicle 202 receives the transmission data transmitted by the wireless communication device 100, the identification information 112 of the other vehicle 202 is recorded in the identification information 112 of the communication destination, so that the other vehicle 202 itself transmits. It can be recognized that it is designated as the destination.

  Therefore, the wireless communication device 100 of the own vehicle 201 and the wireless communication device of the other vehicle 202 can communicate.

  The communication method of the call may be half-duplex communication, but is desirably full-duplex communication so as not to hinder driving operation.

  With half-duplex communication, it is possible to send a call while touching the icon IC1 of the vehicle to be called, while waiting for a call from a vehicle that can make a call while not touching, Receive calls from cars.

  In the case of full-duplex communication, the call is started by the first touch of the icon IC1 of the vehicle to be called, and the call is ended by the second touch or by touching an appropriate part of the screen.

  FIG. 6 shows a second example of an image displayed on the display unit 18 when the own vehicle 201 and the other vehicles 202, 204, 205 are in the state shown in FIG. FIG. 6 shows that the own vehicle 201 can select any one of the other vehicles 202, 204, and 205 as an object to be used for communication by using a bird's-eye view image obtained by combining the image information of the own vehicle and the image information from the other vehicle. The constructed image is shown.

  Identification information, capability information, and position information by inter-vehicle communication are the same as in the first example, and image information is communicated in the second example.

  The image generation unit 14 generates vehicle images OH201, OH202, OH204, and OH205 showing the vehicles of the host vehicle 201 and the other vehicles 202, 204, and 205, respectively.

  Further, since the wireless communication devices of the other vehicles 202, 204, and 205 have the ability to transmit and receive audio data, the image generation unit 14 generates an icon IC1 indicating that it has the ability to transmit and receive audio data.

  As shown in FIG. 6, the image composition unit 171 synthesizes the bird's-eye view images generated by the host vehicle 201 and the other vehicles 202, 204, and 205 so as to have a positional relationship based on the respective position information. In addition, the direction of the vehicle is combined with the direction of the actual vehicle based on the direction information included in the position information.

  Since the wireless communication devices of the other vehicles 202, 204, and 205 have the ability to transmit and receive both voice data and image data, the image generation unit 14 has an ability to transmit and receive both voice data and image data. IC1 is generated. The image composition unit 171 superimposes the icon IC1 near the overhead image.

  As in FIG. 4, the driver (or the passenger) of the own vehicle 201 selects the object to be talked by touching the touch panel 19 with the icon IC <b> 1 of the other car 202, 204, 205 to be chosen as the talk target. can do.

  The image processing unit 17 causes the display unit 18 to display an image in a state where the icon of the other vehicle selected as an object to be talked and the icon of the other vehicle not selected are different.

  FIG. 7 is a third example of an image generated by the image processing unit 17 and displayed on the display unit 18, and shows an example in which the wireless communication device of the other vehicle 204 has the ability to transmit and receive only audio data. .

  An overhead image cannot be obtained from the wireless communication device of the other vehicle 204. Therefore, as shown in FIG. 7, the image composition unit 171 synthesizes the overhead images OH202 and OH205 generated by the own vehicle 201 and the other vehicles 202 and 205 so as to have a positional relationship based on the respective position information. The image composition unit 171 superimposes the icon IC1 at a position corresponding to each of the other vehicles 202 and 205.

  The image generation unit 14 generates an icon IC2 indicating that it has the ability to transmit and receive audio data. Based on the position information of the other vehicle 204, the image composition unit 171 superimposes the icon IC2 on the display position on the display unit 18 where the other vehicle 204 is located. The icon IC2 shown in FIG. 7 is merely an example.

  In the case of FIGS. 4 and 5 as well, if the wireless communication apparatus has the ability to transmit and receive only audio data, the icon IC2 may be displayed instead of the icon IC1.

  In the case of FIGS. 6 and 7 as well, the call is the same as described with reference to FIG.

  Communication by the wireless communication device 100 of the present embodiment is not limited to vehicle-to-vehicle communication. A pedestrian may hold the wireless communication device 100. Each of the vehicle and the pedestrian may mount or hold the wireless communication device 100 (or a wireless communication device corresponding thereto).

  The camera 15 of the wireless communication device 100 owned by a pedestrian may be integrated with the wireless communication device 100, or only the camera 15 may be a separate body attached to the glasses-type wearable device.

  If each of the vehicle and the pedestrian has the wireless communication device 100, the approach of the vehicle can be recognized when the pedestrian cannot recognize the vehicle due to the presence of a block fence or the like.

  The display unit 18 that displays images as shown in FIGS. 4 to 7 is not limited to the display unit provided in the vehicle. An image may be displayed on the above-described glasses-type wearable device, so-called smart glasses.

  When making a call by selecting any of the other vehicles 202, 204, 205, the sound field can be localized according to the position of the other vehicles 202, 204, 205.

  The present invention is not limited to the embodiment described above, and various modifications can be made without departing from the scope of the present invention.

11 Near field communication part (wireless communication part)
13 Position information acquisition unit (position detection unit)
DESCRIPTION OF SYMBOLS 15 Camera 16 Map information holding part 17 Image processing part 18 Display part 19 Touch panel

Claims (3)

A position detector that detects its own position information;
When the other wireless communication unit is located within a predetermined distance, the other wireless communication unit communicates with the position information of the other wireless communication unit and the predetermined information regarding the other wireless communication unit. A self-communication unit that receives
The predetermined information received by the own wireless communication unit is imaged to generate image information, and based on the own position information and the position information of the other wireless communication unit received by the own wireless communication unit, An image processing unit for determining a position for displaying the image information on a display unit, and displaying the image information at the determined position on the display unit;
With
In the image processing unit, when the predetermined information is information allowing the other wireless communication unit to communicate with a wireless communication unit other than the other wireless communication unit, the own wireless communication unit Image information for designating the wireless communication unit as a communication partner is generated and displayed on the display unit. A map information holding unit for holding map information;
The wireless communication apparatus according to claim 1, wherein the image processing unit superimposes the image information on an image based on the map information. The wireless communication device includes a camera,
An image for generating a composite image obtained by combining the captured image information of the subject captured by the camera of the subject and the other captured image information captured by the other camera in accordance with the positional relationship between the subject and the other. It further includes a synthesis unit,
The wireless communication apparatus according to claim 1, wherein the image processing unit superimposes the image information on the composite image.

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