Sign information display system and method

• US 10,210,405 B2
• Filed: 12/22/2016
• Issued: 02/19/2019
• Est. Priority Date: 12/22/2015
• Status: Active Grant

• Current Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Original Assignee: Honda Motor Co., Ltd. (Honda Motor Company)
• Inventors: Yokochi, Yuji, Takatsudo, Izumi, Saito, Shinnosuke
• Primary Examiner(s): Volentine, Rebecca A
• Application Number:
  US15/388,174
• Publication Number:
  US 20170177957A1
• Time in Patent Office: 789 Days
• CPC Class Codes: B60K 2360/166 Navigation
• CPC Class Codes: B60K 2360/168 Target or limit values
• CPC Class Codes: B60K 2360/176 Camera images
• CPC Class Codes: B60K 2360/178 Warnings
• CPC Class Codes: B60K 2360/182 Distributing information between displays
• CPC Class Codes: B60K 2360/184 Displaying the same information on different displays
• CPC Class Codes: B60K 2360/186 Displaying information according to relevancy
• CPC Class Codes: B60K 2360/334 Projection means
• CPC Class Codes: B60K 2360/589 Wireless data transfers
• CPC Class Codes: B60K 2360/5915 Inter vehicle communication
• CPC Class Codes: B60K 2360/592 Data transfer involving external databases
• CPC Class Codes: B60K 2360/595 Data transfer involving internal databases
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/215 characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays
• CPC Class Codes: B60K 35/22 Display screens
• CPC Class Codes: B60K 35/23 Head-up displays [HUD] optical aspects of head-up displays G02B27/01
• CPC Class Codes: B60K 35/28 characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
• CPC Class Codes: B60K 35/29 Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: B60K 35/81 for controlling displays
• CPC Class Codes: B60K 35/85 : Arrangements for transferring vehicle- or driver-related data
• CPC Class Codes: G06F 18/256 : of results relating to different input data, e.g. multimodal recognition
• CPC Class Codes: G06F 3/1423 : controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G06V 10/811 : the classifiers operating on different input data, e.g. multi-modal recognition
• CPC Class Codes: G06V 10/98 : Detection or correction of errors, e.g. by rescanning the pattern or by human intervention; Evaluation of the quality of the acquired patterns
• CPC Class Codes: G06V 20/582 : of traffic signs
• CPC Class Codes: G06V 20/588 : Recognition of the road, e.g. of lane markings; Recognition of the vehicle driving pattern in relation to the road
• CPC Class Codes: G09F 19/18 : involving the use of optical projection means, e.g. projection of images on clouds projection apparatus per se G03B
• CPC Class Codes: G09F 21/049 : giving information to passengers inside the vehicles
• CPC Class Codes: G09G 2340/0464 : Positioning
• CPC Class Codes: G09G 2340/14 : Solving problems related to the presentation of information to be displayed
• CPC Class Codes: G09G 2354/00 : Aspects of interface with display user
• CPC Class Codes: G09G 2380/10 : Automotive applications
• CPC Class Codes: G09G 5/00 : Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T
• CPC Class Codes: G09G 5/006 : Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: G09G 5/14 : Display of multiple viewports
• CPC Class Codes: H04N 23/63 : by using electronic viewfinders
• CPC Class Codes: H04N 5/77 : between a recording apparatus and a television camera

Abstract

If a first sign information detector 62 is normal, a first display 94 displays sign information detected by the first sign information detector 62, in accordance with an instruction from a control circuit 70. At this time, a second display 64 hides sign information in accordance with an instruction from the control circuit 70. On the other hand, if the first sign information detector 62 is abnormal, the first display 94 hides the sign information in accordance with an instruction from the control circuit 70. At this time, the second display 64 displays sign information detected by the second sign information detector 64, in accordance with an instruction from the control circuit 70.

Claims

1. A sign information display system comprising:

a first sign information detector that is configured to receive from an outside of a vehicle first sign information of a traffic sign existing on a road or on a road marking in front of the vehicle and to detect the traffic sign from the first sign information received from the outside of said vehicle, said first sign information detector comprising at least one of;

an imaging device that is configured to capture an image of an area in front of said vehicle to detect said first sign information from the image; and

a communication detector that is configured to receive a signal transmitted from an information transmission device installed outside said vehicle to detect said second sign information from the signal;

a second sign information detector that is configured to detect second sign information corresponding to said traffic sign from information stored inside said vehicle;

a first display that is configured to display thereon said first sign information detected by said first sign information detector;

a second display that is configured to display thereon said second sign information detected by said second sign information detector; and

a control circuit that is configured to control said first display and said second display and comprises a determination device to determine whether or not said first sign information detector is normal or abnormal, said determination device being configured to,

detect a detection signal that is output from said first sign information detector at a predetermined timing and determine that said first sign information detector is normal as long as said detection signal from said first sign information detector is detected at the predetermined timing irrespective of whether said sign information is detected or not, and

determine that said first sign information detector is abnormal if said detection signal is not detected at the predetermined timing, wherein

if it is determined by said determination device that said first sign information detector is normal, said first display is controlled to display said first sign information detected by said first sign information detector and said second display is controlled not to display said second sign information, and

if it is determined by said determination device that said first sign information detector is abnormal, said first display is controlled not to display said first sign information and said second display is controlled to display said second sign information detected by said second sign information detector.

2. The sign information display system according to claim 1, wherein

said first sign information detector or said second sign information detector is configured to detect information of a maximum speed limit on the road on which the vehicle is traveling,

said control circuit further comprises a priority information detector that is configured to detect priority information having a higher priority for display than said maximum speed limit information,

if said maximum speed limit information is detected by said first sign information detector and said priority information is not detected by said priority information detector,

said first display is controlled to display said maximum speed limit information, and

said second display is controlled not to display said maximum speed limit information, and

if said priority information is detected by said priority information detector,

said first display is controlled not to display said maximum speed limit information and to display said priority information, and

said second display is controlled to display said maximum speed limit information.

3. The sign information display system according to claim 1, wherein, when it is determined that said first sign information detector is normal said first display is controlled to switch from a display mode in which said first display displays said first sign information to a non-display mode in which said first display does not display said first sign information, and

when the first display is switched from the display mode to the non-display mode said first display first displays a video such that an image of said traffic sign moves toward a location of said second display and then delete the image.

4. The sign information display system according to claim 1, wherein, when it is determined that said first sign information detector is not normal said second display is controlled to switch from a non-display mode in which said second display does not display said second sign information to a display mode in which said second display displays said second sign information, and

when the second display is switched from the non-display mode to the display mode said second display first displays a video such that an image of said traffic sign moves from a location of said first display and then display the image on said second display.

5. A sign information display system comprising:

a first sign information detector that is configured to receive from an outside of a vehicle first sign information of a traffic sign existing on a road or on a road marking in front of the vehicle and to detect the traffic sign from the first sign information received from the outside of said vehicle, said first sign information detector comprising at least one of;

an imaging device that is configured to capture an image of an area in front of said vehicle to detect said first sign information from the image; and

a communication detector that is configured to receive a signal transmitted from an information transmission device installed outside said vehicle to detect said second sign information from the signal;

a second sign information detector that is configured to detect second sign information corresponding to the traffic sign from information stored inside said vehicle;

a display that is configured to display thereon said first or second sign information; and

a control circuit that is configured to control said display and comprises a determination device to determine whether said first sign information detector is normal or abnormal, said determination device being configured to,

detect a detection signal that is output from said first sign information detector at a predetermined timing and determine that said first sign information detector is normal as long as said detection signal from said first sign information detector is detected at the predetermined timing irrespective of whether said sign information is detected or not, and

determine that said first sign information detector is abnormal if said detection signal is not detected at the predetermined timing, wherein

if it is determined by said determination device that said first sign information detector is normal, said display is controlled to display said first sign information detected by said first sign information detector, and

if it is determined by said determination device that said first sign information detector is abnormal, said display is controlled to display said second sign information detected by said second sign information detector.

6. A sign information display method comprising:

a first sign information detection step of, by utilizing a first sign information detector, performing at least one of the steps of;

(i) receiving from an outside of a vehicle first sign information of a traffic sign existing on a road or on a road marking in front of the vehicle by capturing an image of an area in front of said vehicle to detect said first sign information from the image; and

(ii) detecting the traffic sign from said first sign information received from the outside of said vehicle by receiving a signal transmitted from an information transmission device installed outside said vehicle to detect said second sign information from the signal;

a second sign information detection step of detecting second sign information corresponding to the traffic sign from information stored inside said vehicle;

a first display step of displaying said first sign information detected by said first sign information detector; and

a second display step of displaying said second sign information detected by said second sign information detection step, wherein

the method further comprises the steps of;

determining whether said first sign information detector is normal or abnormal by detecting a detection signal that is output from said first sign information detector at a predetermined timing and determining that said first sign information detector is normal as long as said detection signal from said first sign information detector is detected at the predetermined timing irrespective of whether said sign information is detected or not;

displaying said first sign information detected by said first sign information detector and hiding said second sign information if it is determined that said first sign information detector is normal; and

hiding said first sign information and displaying said second sign information detected by said second sign information step if it is determined that said first sign information detector is abnormal.