WO2017082436A1

WO2017082436A1 - Method and device for displaying vehicle travel direction

Info

Publication number: WO2017082436A1
Application number: PCT/KR2015/012049
Authority: WO
Inventors: 송문빈
Original assignee: 인지니어스 주식회사
Priority date: 2015-11-10
Filing date: 2015-11-10
Publication date: 2017-05-18
Also published as: KR20170054726A

Abstract

The present invention relates to a method and a device for displaying a vehicle travel direction. A method for displaying a vehicle travel direction, according to an embodiment of the present invention, which is performed by a terminal for displaying a vehicle travel direction comprising a memory and a processor, comprises the steps of: generating a path image using a path longitude and a path latitude; generating a first mapping image in which a current vehicle position is mapped to the path image using a position longitude and a position latitude; calculating the vehicle travel direction using a change in the position longitude and the position latitude and adjusting the vehicle travel direction to generate a second mapping image; and generating a display image in which the second mapping image is rotated so that the vehicle travel direction is oriented in the 12 o'clock direction.

Description

Vehicle direction display method and device

The present invention relates to a vehicle driving direction display method and apparatus.

The head-up display (HUD) for a vehicle displays various driving information such as speed, RPM, navigation information (for example, a map, driving direction, etc.) on the front windshield of the vehicle so that the driver can It is a device that helps to drive safely by helping to keep the front without looking down to check the information while driving the vehicle.

In general, in order to check the speed of a vehicle while driving a vehicle, it is necessary to bow down and look at the speedometer on the dashboard, which may cause a dangerous situation because the driver's field of vision must be moved from the front of the vehicle to the dashboard for a short time. However, if the driver uses the head-up display (HUD), the driver can check the necessary information without bowing his head.

Republic of Korea Patent No. 10-0813492 (March 07, 2008) is a light source for generating illumination light; An image source including a micro display panel which receives various image information required by a driver and outputs an image signal; An optical system having a filter for converting an image output from the image source through the illumination light into a stereoscopic image image; A mirror system for outputting a stereoscopic image output from the optical system in a windshield glass direction; And a combiner for realizing small or slim three-dimensional image information including a combiner for reflecting a stereoscopic image output from the mirror system in a driver's direction.

FIG. 1 illustrates an embodiment in which a conventional navigation device displays navigation information, and FIG. 2 illustrates an embodiment of a driving direction of a vehicle in a conventional head-up display.

Referring to FIG. 1, the navigation device also displays an indication of the vehicle traveling direction and information on a complicated road of the vehicle. As such, when the vehicle makes a right turn in front of a specific distance (for example, about 100M) in a complicated place having several lengths, the conventional hair-up display only displays the right direction of turning as shown in FIG. 2. In this case, the driver does not find the correct way.

This is a screen that displays the data on the front windshield of the vehicle by outputting the navigation information in the conventional head-up display is about 5 inches small, so as shown in FIG. Because there is.

In addition, since the road guidance information used by the conventional head-up display is simplified by expressing the direction information into several direction icons, the accurate road guidance information cannot be delivered to the driver in the road environment as shown in FIG. 1. In addition, the conventional head-up display has a problem that it is difficult to identify the road more accurately in a situation where the driver's vision is not secured, such as at night or fog.

The technical problem to be achieved by the present invention relates to a vehicle traveling direction display method and apparatus for displaying the actual shape of the road on which the vehicle proceeds.

In a method of displaying a vehicle traveling direction according to an embodiment of the present invention, a method for displaying a vehicle traveling direction by a terminal for displaying a vehicle traveling direction including a memory and a processor may include generating a route image by using a path hardness and a path latitude. Generating a first mapping image in which a current vehicle position is mapped to the route image by using a position latitude and a position latitude, calculating the vehicle traveling direction by using the change in the position latitude and the position latitude, Generating a second mapping image by adjusting the vehicle traveling direction, and generating a display image in which the second mapping image is rotated such that the vehicle traveling direction is 12 o'clock.

The generating of the route image may include: replacing a value of (vehicle latitude A, route latitude A), which is arbitrary vehicle position information, with a value of (route route 1, route latitude 1), which is the first location information of the vehicle Displaying the (path latitude A, path latitude A), checking and displaying the next second location information (path latitude B, path latitude B), and displaying the (path latitude A, path latitude A) And calculating a vector having the end point (the path longitude B and the path latitude B) and displaying the vector.

The generating of the second mapped image may include: determining (position hardness T, position latitude T) which is current position information of the vehicle; Substituting the value of the position latitude T), checking the position information (position hardness T-1, position latitude T-1) of the immediately preceding state of the vehicle, and the position latitude T-1 and position latitude T-1. And a vector calculation using (Longitude T, Location Latitude T) as an end point, extracting the vehicle traveling direction from the vector, and adjusting the vehicle traveling direction.

The generating of the display image may include: checking a vehicle traveling direction angle, calculating a difference between a true north direction and the vehicle traveling direction angle, and if the difference between the north north direction and the vehicle traveling direction angle is positive, If the second mapping image is rotated by the difference of the vehicle traveling direction angle in the counterclockwise direction with respect to the current position of the vehicle, and the difference between the true north direction and the vehicle traveling direction angle is not positive, the current of the vehicle And rotating the second mapped image by a difference in the vehicle traveling direction angle in a clockwise direction based on a position.

The vehicle driving direction display apparatus according to an embodiment of the present invention includes at least one processor and a memory, wherein at least one program is stored in the memory, and the processor executes the program. Generates a path image by using the path longitude and the path latitude, generates a first mapping image by mapping the current vehicle location to the path image using the location longitude and the location latitude, Calculate the vehicle traveling direction by using the change, adjust the vehicle traveling direction to generate a second mapped image, and generate a display image rotated so that the second mapped image becomes the vehicle traveling direction at 12 o'clock. It is characterized by being programmed.

According to the method and apparatus for displaying a vehicle traveling direction according to an embodiment of the present invention, the following effects are obtained.

First, the present invention can effectively display the actual shape of the road on which the vehicle proceeds, such as the windshield of the vehicle.

Second, the present invention displays the actual shape of the road that the vehicle proceeds to the driver, the driver as the user can recognize the shape of the road or the direction of the road in advance helps to drive safely.

1 illustrates an embodiment in which a conventional navigation device displays navigation information.

Figure 2 shows an embodiment of the driving direction of the vehicle in the conventional head-up display.

3 is a view for explaining a terminal for displaying the vehicle progress direction according to an embodiment of the present invention.

4 is a flowchart illustrating a vehicle driving direction display method according to an embodiment of the present invention.

5 is a flowchart illustrating a process of generating a path image according to an embodiment of the present invention.

6 is a view showing a path image according to an embodiment of the present invention.

7 is a diagram illustrating a first mapped image according to an exemplary embodiment of the present invention.

8 is a flowchart illustrating a process of generating a second mapped image according to an embodiment of the present invention.

9 is a view showing a second mapped image according to an embodiment of the present invention.

10 is a flowchart illustrating a process of generating a display image according to an embodiment of the present invention.

11 is a view showing a display image according to an embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and the present embodiments merely make the disclosure of the present invention complete, and are common in the art to which the present invention pertains. It is provided to fully inform those skilled in the art of the scope of the invention, which is to be defined only by the scope of the claims.

Also, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of components other than the mentioned components. Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to describe the present invention in more detail.

3 is a view for explaining a vehicle driving direction display apparatus according to an embodiment of the present invention.

In the present specification, the terminal 1 as a vehicle driving direction display device includes a head-up display, a mobile phone, a computer, a portable computer, a handheld computer, a tablet computer, a mobile phone, a media player, a PDA, Servers and the like, and any portable electronic device including but not limited to a combination of two or more of these items. It should be appreciated that the terminal 1 is only one example of a portable electronic device or server, and that the terminal 1 may have more or fewer components or configurations of different components than shown. The various components shown in FIG. 3 may be implemented in hardware, software or a combination of both hardware and software, including one or more signal processing and / or program specific integrated circuits.

Referring to FIG. 3, the terminal 1, which is a vehicle driving direction display device according to an embodiment of the present invention, includes a memory 100, a memory controller 210, one or more processors 230, an interface 250, and an output device. 300, an input device 400, a communication circuit 500, an external port 600, an audio circuit 700, and a speaker 800. These components communicate via one or more communication buses or signal lines.

The memory 100 is a portion for storing arbitrary data, software, and the like, and may include fast random access memory, and may also include one or more magnetic disk storage devices, nonvolatile memory such as a flash memory device, or other nonvolatile semiconductor memory. It may include a device. In some embodiments, memory 100 is a storage device located away from one or more processors, such as communication circuitry 500 or external port 600 and the Internet, an intranet, a local area network (LAN), a wide area network (WLAN). Network attached storage that is accessed through a communication network, such as a storage area network (SAN), a suitable combination thereof, or the like. Access to the memory 100 by other components of the terminal 1, such as the processor 230 and the interface 250, may be controlled by the memory control circuit 21.

The software component stored in the memory 100 includes an operating system 110, a communication module 130 (or an instruction set), and at least one program (instruction set) 150. In addition, the memory 100 may further include data such as location information of the vehicle, current location information of the vehicle, navigation information, and the like.

Operating system 110 (e.g., Darwin, RTXC, LINUX, UNIX, OS X, WINDOWS or built-in operating systems such as VxWorks, Android, IOS) is a common system task (e.g., memory management, memory control, Various software components and / or devices for controlling and managing power management, etc.), and facilitating communication between various hardware and software components.

The communication module 130 also includes various software components for facilitating communication with other devices through one or more external ports 600 and for processing data received by the communication circuit 500 and the external port 600. . The external port 600 (eg, USB, FIREWIRE, etc.) is used for direct connection to another device or indirect connection via a network (eg, internet, wireless LAN, etc.).

At least one program 150 may include a browser, address book, contact list, email, instant message, word processing, keyboard emulation, widgets, encoding, digital rights management, Terminals including speech recognition, speech duplication, location determination functions (location information as provided by GPS), music players (playing recorded music stored in one or more files, such as MP3 or AAC files), applications, etc. Any program installed in (1) may be included.

In addition, the at least one program 150 generates a path image by using the path longitude and the path latitude, and generates a first mapping image by mapping the current vehicle location to the path image using the location longitude and the location latitude, The vehicle heading direction is calculated using the change of the position latitude and the position latitude, the second heading image is generated by adjusting the heading direction, and the display image is rotated so that the heading direction is 12 o'clock. You can include a program to generate.

The memory controller 210 is a portion for controlling access to the memory 100 by other components of the terminal 1 such as the processor 230 and the interface 250.

The processor 230 executes a set of instructions stored in various software programs and / or memories 100 to perform various functions for the terminal 1 and to process data.

The interface 250 connects the input / output peripheral of the terminal 1 with the processor 230 and the memory 100. One or more processors 230 execute a set of instructions stored in various software programs and / or memories 100 to perform various functions for the terminal 1 and to process data. For example, the interface 250, the processor 230, and the memory controller 210 may be implemented on one single chip or may be implemented as separate chips.

The output device 300 provides an interface between the user and the terminal 1. That is, the output device 300 displays a visual output of the navigation information including the vehicle driving direction information. The driver as a user can check the navigation information including the vehicle driving direction information through the front windshield of the vehicle.

The input device 400 provides an interface between the user and the terminal 1. That is, the input device 400 may input a command such as an input signal to the terminal 1, and when the user inputs an input signal through the input device 400, the terminal 1 may be of various kinds. The controller detects a user input signal and executes a user's command under the control of the processor 230.

The communication circuit 500 transmits and receives a signal such as an electromagnetic wave. The communication circuit 500 converts an electric signal into an electromagnetic wave and communicates with the communication network and other communication devices through the electromagnetic wave. The communication circuit 500 includes, for example, an antenna system, an RF transceiver, one or more amplifiers, tuners, one or more oscillators, digital signal processors, CODEC chipsets, Subscriber Identity Module (SIM) cards, memory, and the like. The present invention is not limited thereto, and may include well-known circuits for performing such a function. The communication circuit 500 may include the Internet called the World Wide Web (WWW), an intranet and a network, and / or a wireless network such as a cellular telephone network, a wireless LAN and / or a metropolitan area network (MAN), and wireless communication. Can communicate with other devices. Wireless communication includes Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Beacon, Bluetooth, Wireless Fidelity (Wi-Fi) (e.g., IEEE802.11a, IEEE802.11b, IEEE802.11g and / or IEEE802.11n), Voice over Internet Protocol (VoIP), Wi-MAX A plurality of other suitable communication protocols, including but not limited to, protocols for email, instant messaging and / or short text service (SMS), or other communication protocols not yet developed at the time of filing the present invention. Any of communication standards, protocols and techniques can be used.

For example, the communication circuit 500 may communicate with an external device to transmit and receive navigation information.

The audio circuit 700 receives data from the interface 250, converts the received data into an electrical signal, and transmits the electrical signal to the speaker 800. The audio circuit 700 converts the electrical signal into audio data and transmits it to the interface 250 for processing. The audio data may be retrieved or transmitted from the memory 100 and / or the communication circuit 500 by the interface 250.

The speaker 800 converts the received electric signal into sound waves that can be heard by a human. That is, the speaker 800 is a part for reproducing the sound source as a sound that can be heard by humans.

In addition, the terminal 1 may further include a microphone (not shown) connected to the audio circuit 700.

Hereinafter, in the present invention, the terminal 1 may be applied to various devices such as a head up display, a mobile phone, and a smart device.

Referring to FIG. 4, the terminal 1 generates a route image by using a route longitude and a route latitude, which are information of a route to be traveled by the vehicle (S401).

In the present invention, the route longitude is the longitude on the navigation map of the route that the vehicle must travel, and the route latitude is the latitude on the navigation map of the route that the vehicle should proceed. In addition, the path image refers to an image displayed on a two-dimensional plane (or plane coordinates) with information of (path, path, and latitude) of a path on which the vehicle is to travel. For example, the path image may be expressed as shown in FIG. 6 below.

The terminal 1 generates a first mapping image in which the current vehicle position is mapped to the route image by using the position longitude and the position latitude on the map from which the position of the vehicle is calculated (S402).

For example, the first mapped image may be expressed as shown in FIG. 7.

The terminal 1 calculates the vehicle traveling direction by using the change of the position hardness and the location latitude, and generates the second mapping image by adjusting the vehicle traveling direction if necessary (S403).

For example, the second mapped image may be expressed as shown in FIG. 9.

The terminal 1 generates a display image in which the second mapping image is rotated such that the vehicle traveling direction becomes the 12 o'clock direction (S404).

For example, the display image may be expressed as shown in FIG. 11.

The terminal 1 outputs a display image (S405). The driver can see the display image output (or displayed) on the windshield of the vehicle.

5 is a flowchart illustrating a process of generating a path image according to an embodiment of the present invention, and FIG. 6 is a view showing a path image according to an embodiment of the present invention.

In the present invention, (route, route and latitude) is vehicle location information indicating a location on which a vehicle should travel on a route from a starting point to a destination on a navigation map, and sequentially in the memory 100 of the terminal 1 as follows. Can be stored.

(Path longitude 1, path latitude 1)

(Path longitude 2, path longitude 2)

(Path longitude 3, path latitude 3)

(Path longitude 4, path latitude 4)

…

(Path longitude n, path longitude n)

Here, (path latitude 1, path latitude 1) is the starting position of the vehicle, and the position at which the vehicle must pass to the next (or second) is (path latitude 2, path latitude 2). After sequentially proceeding (path latitude, path latitude) stored in the memory 100 (path latitude n, path latitude n) is position information of the final destination of the vehicle.

Referring to FIG. 5, the terminal 1 replaces the value of arbitrary vehicle location information (path latitude A, path latitude A) with the value of the first location information (path latitude 1, path latitude 1) of the vehicle. (S501).

The terminal 1 checks (path latitude A, path latitude A) (S502).

The terminal 1 displays (path latitude A, path latitude A) on plane coordinates (S503). In the present invention, the planar coordinates mean any two-dimensional coordinates.

The terminal 1 checks the next (or next) second location information (path longitude B, path latitude B) (S504).

The terminal 1 displays (path latitude B, path latitude B) on plane coordinates (S505).

The terminal 1 calculates a vector having (path latitude A, path latitude A) as a starting point and (path latitude B, path latitude B) as an end point (S506).

The terminal 1 generates a path image by displaying a vector on plane coordinates (S507). The terminal 1 may output and display the generated route image as shown in FIG. 6.

The terminal 1 checks whether (path latitude B, path latitude B) is the destination of the vehicle (S508).

The terminal 1 terminates the generation of the route image when the (path latitude B, the path latitude B) is the destination of the vehicle.

If (path latitude B, path latitude B) is not the destination of the vehicle, the terminal 1 replaces the values of (path latitude A and path latitude A) with values of (path latitude B and path latitude B) (S509). Step S502 is performed.

Referring to FIG. 7, a first mapping image according to an embodiment of the present invention is generated by mapping (location longitude and location latitude) which is current location information of a vehicle to a path image. The generated first mapped image may be displayed as shown in FIG. 7.

8 is a flowchart illustrating a process of generating a second mapped image according to an embodiment of the present invention, and FIG. 9 is a view illustrating a second mapped image according to an embodiment of the present invention. Here, the second mapping image may be generated by calculating the vehicle traveling direction.

In the present invention, when the longitude and latitude information, which is the current location information of the vehicle acquired through GPS, is defined as (location longitude and location latitude), the current location information of the vehicle stored in the memory 100 is as follows.

(Longitude T-n, Latitude T-n)

…

(Longitude T-2, Latitude T-2)

(Position longitude T-1, position latitude T-1)

(Position longitude T, position latitude T)

Here, (location longitude T, location latitude T) is the current position information of the vehicle, and (location longitude T-1, location latitude T-1) is the position information immediately before the vehicle. The second mapping image may be generated by calculating a vehicle traveling direction by using the position information of the vehicle.

Referring to FIG. 8, the terminal 1 checks (location longitude T, location latitude T) which is current location information of the vehicle (S801).

The terminal 1 replaces the values of (position hardness A, position hardness B) with values of (position hardness T, position latitude T) (S802).

The terminal 1 checks the position information (position hardness T-1, position latitude T-1) immediately before the vehicle (S804).

The terminal 1 calculates a vector using (location longitude T-1, location latitude T-1) as a starting point, and (location longitude T, location latitude T) as an end point (S804).

The terminal 1 extracts the vehicle traveling direction from the vector (S805).

The terminal 1 adjusts the vehicle traveling direction if necessary (S806). Here, the meaning when necessary means a case where it is necessary to adjust the vehicle traveling direction. For example, if there is no need to adjust the vehicle travel direction, the terminal 1 does not adjust the vehicle travel direction.

The terminal 1 generates a second mapping image (S807). The terminal 1 may output and display the second mapping image generated as shown in FIG. 9.

The terminal 1 checks whether there is a change in the vehicle traveling direction (S808).

If there is a change in the vehicle traveling direction, the terminal 1 replaces the values of (Longitude T-1, Latitude T-1) with the values of (Longitude T, Latitude T) (S808), and replaces S803. Perform.

If there is no change in the vehicle traveling direction, the terminal 1 ends the generation of the second mapped image.

10 is a flowchart illustrating a process of generating a display image according to an embodiment of the present invention, and FIG. 11 is a view showing a display image according to an embodiment of the present invention.

In this case, since the vehicle always proceeds toward the front of the driver, the second mapping image generated by adjusting the vehicle traveling direction (progress path) so that the front of the vehicle is 12 o'clock with respect to the driver. You can rotate and create a display image and display it.

Referring to FIG. 10, the terminal 1 checks the vehicle traveling direction angle (S1001).

The terminal 1 calculates the difference R between the north direction direction N and the vehicle traveling direction angle (S1002).

The terminal 1 checks whether the difference R between the north north direction and the vehicle traveling direction angle is positive (S1003).

The terminal 1 generates a display image by rotating the second mapping image by R in a counterclockwise direction based on the current position of the vehicle when the difference R between the north north direction and the vehicle traveling direction angle is positive (S1004). ).

If the difference R between the north north direction and the vehicle traveling direction angle is not positive, the terminal 1 generates a display image by rotating the second mapping image clockwise by R based on the current position of the vehicle (S1005). ). Here, when the difference R between the north direction and the vehicle traveling direction angle is not (+), it means that the difference R between the north north direction and the vehicle traveling direction angle is (−).

Method according to an embodiment of the present invention may be implemented in the form of program instructions that can be executed by various computer means may be recorded on a computer readable recording medium. The computer readable recording medium may include program instructions, data files, data structures, etc. alone or in combination. Programs (program instructions) recorded on the recording medium may be those specially designed and configured for the present invention, or may be known and available to those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CDROMs and DVDs, and magnetic-optical such as floppy disks. Hardware devices specifically configured to store and execute program instructions, such as magneto-optical media, ROM, RAM, flash memory, and the like, are included. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, but it is only for the purpose of describing the present invention, and those skilled in the art to which the present invention pertains various modifications or equivalents from the detailed description of the invention. It will be appreciated that one embodiment is possible. Therefore, the true scope of the present invention should be determined by the technical spirit of the claims.

Claims

A method for displaying a vehicle traveling direction by a terminal for displaying a vehicle traveling direction including a memory and a processor,

Generating a path image using the path longitude and the path latitude,

Generating a first mapping image by mapping a current vehicle position to the route image using a position longitude and a position latitude;

Calculating a moving direction of the vehicle by using the change of the position hardness and the position latitude, and generating a second mapping image by adjusting the moving direction of the vehicle;

And generating a display image in which the second mapping image is rotated such that the vehicle traveling direction becomes the 12 o'clock direction.
The method of claim 1,

Generating the path image,

Substituting arbitrary vehicle location information (path latitude A, path latitude A) with values of the vehicle's starting position 1 location information (path latitude 1, path latitude 1),

Displaying (path latitude A, path latitude A),

Identifying and displaying the next second location information (route length B, path latitude B),

And calculating a vector having the (path latitude A, the path latitude A) as a starting point, the end point of the (path latitude B, the path latitude B), and displaying the vector.
The method of claim 1,

Generating the second mapped image,

Identifying (location longitude T, location latitude T) which is current location information of the vehicle,

Replacing the values of (position hardness A, position hardness B) with the values of (position hardness T, position latitude T),

Checking the position information (position hardness T-1, position latitude T-1) of the immediately preceding state of the vehicle;

Calculating a vector using the position latitude T-1 and the position latitude T-1 as a starting point and the position latitude T and the position latitude T as end points;

Extracting the vehicle traveling direction from the vector;

And adjusting the vehicle traveling direction.
The method of claim 1,

Generating the display image,

Checking the vehicle heading angle;

Calculating a difference between a true north direction and the vehicle traveling direction angle;

If the difference between the true north direction and the vehicle traveling direction angle is positive, the second mapping image is rotated by the difference of the vehicle traveling direction angle in the counterclockwise direction based on the current position of the vehicle, and the north north direction and the north direction And rotating the second mapped image by the difference of the vehicle traveling direction angle in a clockwise direction based on the current position of the vehicle if the difference of the vehicle traveling direction angle is not positive.
At least one processor,

Memory,

At least one program is stored in the memory, and the processor executes the program.

The at least one program generates a route image using the route longitude and the route latitude, generates a first mapping image by mapping the current vehicle position to the route image using the position longitude and the position latitude, and the position longitude. And calculating the vehicle traveling direction by using the change of the position latitude, generating a second mapping image by adjusting the vehicle traveling direction, and rotating the second mapping image such that the vehicle traveling direction is 12 o'clock. And a vehicle traveling direction display device programmed to generate a display image.