The present disclosure generally relates to a road information display system and method. More specifically, the present disclosure relates to system and method of displaying road information about a portion of a road ahead of a current portion of the road upon which the host vehicle is traveling.
Driving unfamiliar roads or roads with poor visibility can induce stress in a driver of a vehicle. Traffic signs and other road information, when visible, do not accurately depict the road ahead of the vehicle. Additionally, traffic signs do not convey information regarding a current situation on the road ahead of the vehicle, such as an accident around a sharp turn that is not visible to the driver prior to traveling through the sharp turn.
In view of the state of the known technology, one aspect of the present disclosure is to provide a method of displaying road information in a host vehicle. The host vehicle receives the road information acquired by another vehicle. The road information includes information about a portion of a road ahead of a current portion of the road upon which the host vehicle is traveling. An information presentation time is determined at which the road information is configured to be presented in the host vehicle. The road information is presented in the host vehicle at the determined information presentation time.
Another aspect of the present disclosure is to provide a road information display system for a host vehicle including a receiver, a processor and an information display. The receiver is configured to receive road information acquired by another vehicle. The road information includes information about a portion of a road ahead of a current portion of the road upon which the host vehicle is traveling. The processor is configured to determine an information presentation time. The information display is configured to present the road information in the host vehicle at the determined information presentation time. The processor is further configured to prevent the presentation of the road information in the host vehicle prior to the information presentation time.
Also other objects, features, aspects and advantages of the disclosed road information display system and method will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses exemplary embodiments of the road information display system and method.
Referring now to the attached drawings which form a part of this original disclosure:
Selected embodiments will now be explained with reference to the drawings. It will be apparent to those skilled in the art from this disclosure that the following descriptions of the embodiments are provided for illustration only and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.
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The host vehicle 10 and the other vehicle 22 may communicate with the communication network, or remote server, 24 via an access point 26, as shown in
The host vehicle 10 and the other vehicle 22 may communicate with the communication network, or remote server, 24 via a satellite 28, or other non-terrestrial communication device. The satellite 28, which may include a computing device, may be configured to communicate with the host vehicle 10, the other vehicle 22, with the communication network 24, or with a combination thereof via one or more communication links. Although shown as a single unit in
The electronic communication network, or remote server, 24 may be any type of network configured to provide for voice, data, or any other type of electronic communication. For example, the electronic communication network 24 may include a local area network (LAN), a wide area network (WAN), a virtual private network (VPN), a mobile or cellular telephone network, the Internet, a cloud server, a remote database, or any other electronic communication system. The electronic communication network 24 may use a communication protocol, such as the transmission control protocol (TCP), the user datagram protocol (UDP), the internet protocol (IP), the real-time transport protocol (RTP) the HyperText Transport Protocol (HTTP), or a combination thereof. Although shown as a single unit in
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The electronic communication network 24 is schematically illustrated including a plurality of control modules. The electronic communication network 24 includes a road information generation unit 48, an information distribution unit 50 and a communication unit 52, as shown in
Each of the communication units 42, 46 and 52 includes a wireless communicator 42a, 46a and 52a, respectively, as shown in
The road information display system 54 includes the host vehicle 10, the other vehicle 22, and the electronic communication network 24, as shown in
The road information includes dynamic and static information of the portion 21 of the road 14 ahead of the current location of the host vehicle 10. Dynamic road information is road information that is subject to change overtime. Dynamic road information includes, but is not limited to, a slow vehicle (e.g., a truck or trailer), an emergency vehicle, a stopped vehicle or traffic jam, a bicyclist or jaywalker, debris on the road, or an animal on the road. Static road information is road information that does not change with time. Static road information includes, but is not limited to, a blind driveway or road, a sharp or hairpin turn, a portion of the road with no shoulder, and a portion of the road having a steep drop-off. The road information can also include information that is not dynamic or static road information, such as, but not limited to, construction work on the road.
A flow chart of a method of displaying road information in the host vehicle 10 is illustrated in
The position information is determined when the host vehicle 10 is approaching a known difficult or risky portion of the road 14 or when the driver requests the road information to be displayed. As shown in
When the driver manually requests road information, the road information request unit 40 transmits a request for the current position information of the host vehicle 10, which is transmitted to the road information request unit 40. Alternatively, the road information request unit 40 transmits a request for the current position information of the host vehicle to determine whether the host vehicle 10 is within a predetermined distance and traveling toward a stored location. The current position information of the host vehicle 10 is transmitted from the road information request unit 40 to the communication unit 42. The wireless communicator 42A of the communication unit 42 of the host vehicle 10 transmits the current position information of the host vehicle 10 to the wireless communication 52A of the communication unit 52 of the electronic communication network 24.
When the electronic communication network 24 receives the position information from the host vehicle 10, the process moves to step S20 of
When another vehicle 22 is determined to be present in the vicinity of the current location of the host vehicle 10, the process moves to step S30 of
The wireless communicator 46A of the communication unit 46 transmits a request to the information acquisition unit 44 of the other vehicle 22, as shown in
The wireless communicator 46A of the electronic communication network 24 transmits the road information received from the other vehicle 22 to the road information generation unit 48, as shown in
When another vehicle 22 is determined to not be traveling on the same road 14 in the same direction and ahead of the current location of the host vehicle 10, the process moves to step S40 of
The processor 48A of the road information generation unit 48 generates the road information from the road information transmitted from the other vehicle 22 or from the information stored in the storage 50B of the information distribution unit 50. The processor 48A is configured to adjust the image or the video of the road information to account for a change in time of the day or weather. For example, when the host vehicle 10 requests road information at night and the road information is obtained from the storage 50B of the information distribution unit based on road information transmitted from another vehicle 22 during daytime, the processor 48A is configured to adjust the video or image from daytime to nighttime. In other words, the visual image of the received road information is modified to correspond to a current time of day or a current weather condition.
From steps S30 and S40 of
The process then moves to step S60 of
The burden estimation unit 30 includes a camera 30A, a heart rate monitor 30B, and any other suitable component to detect information regarding indications of stress, burden or discomfort exhibited by the driver of the host vehicle 10. The camera 30a is configured to detect visible stress and/or discomfort exhibited by the driver, such as squinting of the eyes due to poor visibility of the road 14. The heart rate monitor 30B is configured to detect the heart rate of the driver of the host vehicle 10 to determine when a stress level of the driver is increasing. The information collected by the camera 30A, the heart rate monitor 30B, and the other stress detecting components is transmitted to a processor 30C to determine whether the driver is experiencing stress or an elevated burden while operating the host vehicle 10. In other words, the burden of the driver of the host vehicle 10 is determined with a sensor, such as the camera 30A or the heart rate monitor 30B, disposed in the host vehicle 10.
The processor 32B receives the burden level determined by the processor 30C of the burden estimation unit 30. Based on the determined burden level, the presentation determination unit determines when to display the road information. When the estimated burden level is high, the road information is displayed sooner than when the estimated burden level is low such that the driver has more time to process the received road information prior to operating the host vehicle 10 through the portion 21 of the road 14 ahead of the current portion 12 of the road 14 traveled by the host vehicle 10.
In step S70, the road information is displayed in the host vehicle 10. As shown in
In step S80, the road information is prevented from being presented in the host vehicle 10 prior to the determined information presentation time. The information presentation time is determined in step S60. Prior to the information presentation time, the received road information is prevented from being displayed in the host vehicle 10. The process returns to step S60 to determine whether the time is the information presentation time, and the process proceeds to either step S70 or step S80 depending on whether the time is determined to be the information presentation time. In other words, prior to the determined information presentation time, the received road information is prevented from being presented in the host vehicle 10. The determined information presentation time corresponds to a time or distance of the host vehicle 10 from the portion 21 of the road 14 ahead of the current portion 12 of the road 14 upon which the host vehicle 10 is traveling.
The road information display system 54 allows the driver of the host vehicle 10 to receive road information regarding a portion 21 of the road 14 ahead of the current portion 12 of the road 14 on which the host vehicle 10 is traveling. Receiving the road information regarding the portion 21 of the road 14 ahead of the current portion 12 of the road 14 the host vehicle 10 is traveling allows the driver to understand the portion 21 of the road 14 prior to traveling that portion 21 of the road 14 and to prepare to control the host vehicle 10 along the portion 21 of the road 14 such that stress and risk are reduced. The received road information provides more descriptive and specific information than is available from traffic signs provided along the road 14. The received road information can be received responsive to a driver request in the host vehicle 10 or based on a current location of the host vehicle 10. The information presentation time can be determined based on at least one of a burden of the driver of the host vehicle 10 and a predetermined time or distance to the portion of the road ahead of the host vehicle 10. The driver can set a preference that the received road information is presented further away from or closer to the portion 21 of the road 14 ahead of the current portion 12 of the road 14 upon which the host vehicle 10 is traveling. The presentation time of the road information can also be earlier based on the urgency of the situation, such as an accident around the sharp turn 16 (
The received road information provides more descriptive and specific information than is available from traffic signs provided along the road 14. The driver of the other vehicle 22 can record an audio message stored to the storage 50B to be transmitted to the host vehicle 10 when the host vehicle 10 approaches the portion 21 of the road 14 ahead of the current portion 12 of the road 14 upon which the host vehicle 10 is traveling. The driver of the other vehicle 22 can record a message informing the driver of the host vehicle 10 to watch out for construction around the sharp turn 16 (
The road information is obtained from the other vehicle 22, as shown in
The road information display system 54 can include a learning function to facilitate displaying the received road information based on big data gathered from many other vehicles 22 using the road information display system 54. The data of the received road information and the results of displaying the road information in the host vehicle are uploaded to the electronic communication network, such as a cloud server, and machine learning is conducted. The evaluation of the learning function can be based on the extent of the driver's burden, which is measured by the sensor disposed in the host vehicle 10, or a response time of the driver of the host vehicle 10.
The road information display system 54 can also be used when driving on a circuit. Racing and/or time trial drivers can receive the road information such that the driver is aware of an upcoming situation, such as a turn, to prepare the driver for the situation, thereby improving the driver's time and increasing the driver's safety. The system architecture illustrated in
Each of the wireless communicators 42A, 46A and 52A includes a receiver, a transmitter, a transceiver, a transmitter-receiver, and contemplates any device or devices, separate or combined, capable of transmitting and/or receiving wireless communication signals, including shift signals or control, command or other signals related to some function of the component being controlled. The wireless communication signals can be radio frequency (RF) signals, ultra-wide band communication signals, or Bluetooth communications or any other type of signal suitable for wireless communications as understood in the vehicle field. Here, the wireless communication communicator can be a two-way wireless communication unit having a receiver and a transmitter.
Each of the storages 32A, 40C, 50B and 44F can be any non-transitory computer readable medium, such as a ROM device, a RAM device, a hard disk, a flash drive, cloud drive, etc. Storages 32A and 50A are configured to store settings, programs, data, calculations and/or results of the processor(s) 32B and 50A, respectively. Storages 40C and 44F are configured to store settings, programs, data, calculations and/or results of the road information request unit 40 and the information acquisition unit 44, respectively.
Each of the processors 30C, 32B, 48A and 50A can be any suitable programmable control device capable of executing instructions necessary to carry out or control the operation of the many functions performed by the respective units.
In understanding the scope of the present invention, the term “comprising” and its derivatives, as used herein, are intended to be open ended terms that specify the presence of the stated features, elements, components, groups, integers, and/or steps, but do not exclude the presence of other unstated features, elements, components, groups, integers and/or steps. The foregoing also applies to words having similar meanings such as the terms, “including”, “having” and their derivatives. Also, the terms “part,” “section,” “portion,” “member” or “element” when used in the singular can have the dual meaning of a single part or a plurality of parts. Also as used herein to describe the above embodiment(s), the following directional terms “forward”, “rearward”, “above”, “downward”, “vertical”, “horizontal”, “below” and “transverse” as well as any other similar directional terms refer to those directions of a vehicle equipped with the road information display system and method. Accordingly, these terms, as utilized to describe the present invention should be interpreted relative to a vehicle equipped with the road information display system and method.
The term “detect” as used herein to describe an operation or function carried out by a component, a section, a device or the like includes a component, a section, a device or the like that does not require physical detection, but rather includes determining, measuring, modeling, predicting or computing or the like to carry out the operation or function.
The term “configured” as used herein to describe a component, section or part of a device includes hardware and/or software that is constructed and/or programmed to carry out the desired function.
The terms of degree such as “substantially”, “about” and “approximately” as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed.
While only selected embodiments have been chosen to illustrate the present invention, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made herein without departing from the scope of the invention as defined in the appended claims. For example, the size, shape, location or orientation of the various components can be changed as needed and/or desired. Components that are shown directly connected or contacting each other can have intermediate structures disposed between them. The functions of one element can be performed by two, and vice versa. The structures and functions of one embodiment can be adopted in another embodiment. It is not necessary for all advantages to be present in a particular embodiment at the same time. Every feature which is unique from the prior art, alone or in combination with other features, also should be considered a separate description of further inventions by the applicant, including the structural and/or functional concepts embodied by such feature(s). Thus, the foregoing descriptions of the embodiments according to the present invention are provided for illustration only, and not for the purpose of limiting the invention as defined by the appended claims and their equivalents.