Digital rear mirror device capable of adjusting angle of view while driving vehicle, and operating method for the same

Abstract

To provide a digital rear mirror device capable of adjusting an angle of view while driving a vehicle, and an operating method for the same.SOLUTION: In the present disclosure, a digital rear mirror device is mounted on a vehicle, and is configured to acquire driving information of the vehicle during driving of the vehicle, to adjust an angle of view for a rear image of the vehicle based on the driving information, and to display the rear image according to the angle of view. The driving information includes at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, and reverse information indicating a reversing state of the vehicle. The digital rear mirror device is capable of expanding or reducing the angle of view based on the driving information, or moving a center of the angle of view.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a digital rear mirror (DRM) device capable of adjusting the angle of view while a vehicle is traveling, and a method of operating the same.

[0002] A driver who drives a vehicle must keep his or her eyes on the road as well as the rear while driving. For this reason, vehicles are equipped with a rear mirror (also called a rear view mirror, back mirror, room mirror, or inside mirror). In other words, the driver checks the rear through the rear mirror while maintaining a forward-facing posture. However, the rear view through the rear mirror may be blocked by passengers, items, or cargo behind the driver. This can lead to various dangers. Summary of the Invention [Problem to be solved by the invention]

[0003] The present disclosure provides a digital rear-mirror device capable of adjusting the angle of view while the vehicle is traveling, and a method for operating the same. [Means for solving the problem]

[0004] In the present disclosure, a digital rear mirror device for a vehicle may include a display module configured to display a rear image of the vehicle, and a processor connected to the display module and configured to acquire driving information of the vehicle while the vehicle is traveling, and adjust the angle of view for the rear image based on the driving information.

[0005] In the present disclosure, a method for operating a digital rear mirror device of a vehicle may include a step of acquiring vehicle driving information while the vehicle is driving, a step of adjusting an angle of view for an image behind the vehicle based on the driving information, and a step of displaying the rear image according to the angle of view.

[0006] In the present disclosure, a digital rear mirror system for a vehicle may include a camera device configured to capture a rear image of the vehicle, and a digital rear mirror device configured to acquire vehicle driving information while the vehicle is driving, adjust the angle of view for the rear image based on the driving information, and display the rear image according to the angle of view.

[0007] In the present disclosure, a method of operating a digital rear-view mirror system for a vehicle may include a step of a digital rear-view mirror device acquiring driving information of the vehicle while the vehicle is traveling, a step of the digital rear-view mirror device adjusting an angle of view for an image behind the vehicle based on the driving information, and a step of the digital rear-view mirror device displaying the rear image received from the camera device in accordance with the angle of view. Effect of the Invention

[0008] According to the present disclosure, the digital rear-mirror device can provide an unobstructed rear view to the driver of the vehicle by displaying a rear image of the vehicle captured by a camera device. In particular, the digital rear-mirror device can support the driver's safe driving by flexibly adjusting the angle of view for the rear image based on vehicle driving information while the vehicle is traveling. That is, the digital rear-mirror device can automatically provide the driver with the rear view required to drive the vehicle according to the vehicle's driving state. For example, the digital rear-mirror device can adjust the angle of view when the vehicle changes speed, changes lanes, or backs up. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a block diagram illustrating the configuration of a digital rearview mirror system according to various embodiments. [Diagram 2] 2a and 2b are exemplary diagrams for explaining the operational characteristics based on the vehicle speed of the digital rear-mirror device of FIG. [Diagram 3]3a and 3b are illustrative diagrams for explaining operational characteristics of the steering base of the vehicle of the digital rear-mirror device of FIG. [Figure 4] 4a and 4b are illustrative diagrams for explaining the operational characteristics of the vehicle back base of the digital rear-mirror device of FIG. [Diagram 5] 5a and 5b are illustrative diagrams for explaining the operational characteristics of the vehicle back base of the digital rear-mirror device of FIG. 1. FIG. [Figure 6] 1 is a flow chart illustrating a method of operation of a digital rearview mirror system, according to various embodiments. [Figure 7] FIG. 2 is a block diagram showing the internal configuration of a digital rear-mirror device according to various embodiments. [Figure 8] 4 is a flow chart illustrating a method of operation of a digital rear mirror device according to various embodiments. [Figure 9] FIG. 1 is a block diagram illustrating a vehicle equipped with an electronic device according to various embodiments. [Figure 10] FIG. 10 is a block diagram showing a control device for the vehicle shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Various embodiments of the present specification will now be described with reference to the accompanying drawings.

[0011] FIG 1 is a block diagram showing the configuration of a digital rear-view mirror system 100 in various embodiments. FIGS. 2a and 2b are exemplary diagrams for explaining operation characteristics based on the vehicle speed of the digital rear-view mirror device 120 of FIG 1. FIGS. 3a and 3b are exemplary diagrams for explaining operation characteristics based on the vehicle steering of the digital rear-view mirror device 120 of FIG 1. FIGS. 4a and 4b are exemplary diagrams for explaining operation characteristics based on the vehicle back of the digital rear-view mirror device 120 of FIG 1. FIGS. 5a and 5b are exemplary diagrams for explaining operation characteristics based on the vehicle back of the digital rear-view mirror device 120 of FIG 1.

[0012] 1, the digital rear-mirror system 100 may include a camera device 110 and a digital rear-mirror device 120. The digital rear-mirror system 100 may be configured to be mounted inside a vehicle, obtain image information related to the vehicle's surrounding environment via the camera device 110, and output visual information based on the image information via the digital rear-mirror device 120. In some embodiments, at least one other component (e.g., another camera device) may be added to the digital rear-mirror system 100.

[0013] The camera device 110 and the digital rear-mirror device 120 may be connected to each other so as to enable wired or wireless communication. In one embodiment, the camera device 110 and the digital rear-mirror device 120 may be connected to each other via a communication cable. The camera device 110 and the digital rear-mirror device 120 may communicate with each other via a serial transmission method. However, this is not limited thereto, and the camera device 110 and the digital rear-mirror device 120 may be connected to each other via vehicle internal network communication (e.g., CAN communication). The camera device 110 and the digital rear-mirror device 120 may include various communication chips.

[0014] The image captured by the camera device 110 may be an image of the surroundings of the vehicle. For example, the camera device 110 may obtain an image of the rear of the vehicle. For this reason, the camera device 110 may be attached to the rear of the vehicle so as to face the rear of the vehicle.

[0015] The digital rear-mirror device 120 may provide an image captured by the camera device 110 so that it can be displayed. The surrounding image acquired by the camera device 110 may be displayed on the digital rear-mirror device 120 mounted inside the vehicle. For example, a rear image of the vehicle acquired via the camera device 110 may be provided to a driver of the vehicle via the digital rear-mirror device 120. For this purpose, the digital rear-mirror device 120 may be disposed within the driver's field of vision. Specifically, the digital rear-mirror device 120 may be provided to display a rear image. The digital rear-mirror device 120 may have a display area of ​​a predetermined size and display a rear image in the display area.

[0016] According to various embodiments, the digital rear-mirror device 120 may adjust an angle of view F for a rear image displayed in a display area while the vehicle is traveling. Specifically, the digital rear-mirror device 120 may adjust the angle of view F based on vehicle traveling information while the vehicle is traveling. Furthermore, the digital rear-mirror device 120 may display a rear image according to the adjusted angle of view F. In this case, the traveling information may include at least one of speed information indicating the speed of the vehicle, steering information related to the steering of the vehicle, and backing information indicating the backing situation of the vehicle.

[0017] According to the first embodiment, the digital rear-mirror device 120 may adjust the angle of view F based on the speed information. More specifically, the digital rear-mirror device 120 may expand or reduce the angle of view F for the background environment B based on the speed of the vehicle, as shown in FIG. 2a. Here, the background environment B is the environment behind the vehicle, and at least a part of the background environment B may be captured as a rear image. As a result, the digital rear-mirror device 120 can display a rear image according to the corresponding angle of view F as shown in FIG. 2b, and provide the driver of the vehicle with a rear view of various widths. At this time, if the speed of the vehicle increases to exceed a threshold, the digital rear-mirror device 120 may expand the angle of view F. In this case, the digital rear-mirror device 120 can provide the driver of the vehicle with an overall wider range of rear view. Here, the speed threshold for expanding the angle of view F may be in the range of 80 to 120 km / h. On the other hand, if the speed of the vehicle decreases below the threshold, the digital rear-mirror device 120 may reduce the angle of view F. In such a case, the digital rear-mirror device 120 can provide the driver of the vehicle with an overall narrower range of rear visibility. Here, the speed threshold for reducing the angle of view F may be in the range of 20 to 40 km / h.

[0018] Here, the digital rear-mirror device 120 may compare the speed of the vehicle with at least one threshold value, and for this purpose, registration information in which a plurality of speed ranges divided by the threshold value and the size of the angle of view F corresponding to each of these ranges are mapped may be recorded. Here, the registration information may be recorded when the digital rear-mirror device 120 is manufactured, and may be changed by the user. Therefore, the digital rear-mirror device 120 can expand or reduce the angle of view F to the corresponding size by comparing the speed of the vehicle with the threshold value and selecting the size of the angle of view F corresponding to one of the speed ranges. For example, FIG. 2a shows a case in which the digital rear-mirror device 120 has three speed ranges divided by two threshold values ​​and the size of the angle of view F corresponding to each of these ranges mapped, but this should not be limited thereto.

[0019] According to the second embodiment, the digital rear-mirror device 120 may adjust the angle of view F based on the steering information. More specifically, the digital rear-mirror device 120 may move the center of the angle of view F to the left or right with respect to the background environment B based on the steering direction and angle of the vehicle, as shown in FIG. 3a. As a result, the digital rear-mirror device 120 can display a rear image according to the corresponding angle of view F as shown in FIG. 3b, and provide the driver of the vehicle with a rear view of various positions. At this time, the digital rear-mirror device 120 may move the center of the angle of view F from the origin to the steering direction by the steering angle. In this case, the digital rear-mirror device 120 can provide the driver of the vehicle with a wider range of rear view in the steering direction, for example, to the right or left. For example, when the steering angle is to the right (clockwise), the digital rear-mirror device 120 may provide a wider range of rear view to the right by an angle corresponding to the steering angle. For example, when the steering angle is to the left (counterclockwise), the digital rear-mirror device 120 may provide a wider range of rear visibility to the left by an angle corresponding to the steering angle. Then, when the steering angle decreases, the digital rear-mirror device 120 may move the center of the angle of view F back to the origin. In such a case, the digital rear-mirror device 120 may provide the vehicle driver with the same range of rear visibility on the right and left sides.

[0020] For example, when a vehicle changes lanes to the right, the digital rear-mirror device 120 may provide a wider range of rear vision for the right rear of the vehicle, and when the vehicle enters the corresponding lane, the digital rear-mirror device 120 may provide the same range of rear vision for the right rear and left rear of the vehicle. Similarly, when a vehicle changes lanes to the left, the digital rear-mirror device 120 may provide a wider range of rear vision for the left rear of the vehicle, and when the vehicle enters the corresponding lane, the digital rear-mirror device 120 may provide the same range of rear vision for the right rear and left rear of the vehicle.

[0021] According to the third embodiment, the digital rear-mirror device 120 may adjust the angle of view F based on the steering information. More specifically, as shown in FIG. 2a, the digital rear-mirror device 120 may expand or reduce the center of the angle of view F with respect to the background environment B based on the steering direction and angle of the vehicle. As a result, the digital rear-mirror device 120 can display a rear image according to the corresponding angle of view F (not shown in the figure) and provide the vehicle driver with a rear view of various widths. At this time, when the steering angle increases to exceed a threshold, the digital rear-mirror device 120 may expand the angle of view F. In this case, the digital rear-mirror device 120 can provide the vehicle driver with a rear view of a wider range overall, including the steering direction. Next, when the steering angle decreases below the threshold, the digital rear-mirror device 120 may reduce the angle of view F. In this case, the digital rear-mirror device 120 can provide the vehicle driver with a rear view of a narrower range overall.

[0022] According to the fourth embodiment, the digital rear-mirror device 120 may adjust the angle of view F based on the back information. More specifically, the digital rear-mirror device 120 may expand or reduce the angle of view F for the background environment B based on the backing situation of the vehicle, as shown in FIG. 4a. As a result, the digital rear-mirror device 120 can display a rear image according to the corresponding angle of view F, as shown in FIG. 4b, and provide the driver of the vehicle with a rear view of various widths. At this time, when the vehicle is backing up, the digital rear-mirror device 120 may expand the angle of view F. In this case, the digital rear-mirror device 120 can provide the driver of the vehicle with a rear view of a wider range overall. This helps prevent accidents when the vehicle is backing up. After this, when the vehicle finishes backing up, for example, when the vehicle moves forward, the digital rear-mirror device 120 may reduce the angle of view F. In this case, the digital rear-mirror device 120 can provide the driver of the vehicle with a rear view of a narrower range overall.

[0023] According to the fifth embodiment, the digital rear-mirror device 120 may adjust the angle of view F based on the back information. More specifically, the digital rear-mirror device 120 may move the center of the angle of view F up and down with respect to the background B based on the backing situation of the vehicle, as shown in FIG. 5a. As a result, the digital rear-mirror device 120 can display a rear image according to the corresponding angle of view F as shown in FIG. 5b, and provide the driver of the vehicle with a rear view of various positions. At this time, when the vehicle backs up, the digital rear-mirror device 120 may move the center of the angle of view F downward from the origin. In this case, the digital rear-mirror device 120 can provide the driver of the vehicle with a rear view of a wider range than the floor, for example, the ground. This is useful, for example, when the driver of the vehicle parks the vehicle. After this, when the backing of the vehicle is completed, for example, when the vehicle moves forward, the digital rear-mirror device 120 may return the center of the angle of view F to the origin.

[0024] According to an additional embodiment, the digital rear-mirror device 120 may adjust the angle of view F based on a combination of at least two of the speed information, the steering information, or the back information. In one embodiment, when the speed of the vehicle exceeds a first threshold and the steering angle increases to exceed a second threshold, the digital rear-mirror device 120 may expand the angle of view F. Thereafter, when the steering angle decreases to below the second threshold, the digital rear-mirror device 120 may reduce the angle of view F. Alternatively, when the speed of the vehicle decreases to below the first threshold and the steering angle decreases to below the second threshold, the digital rear-mirror device 120 may reduce the angle of view F. In another embodiment, when the vehicle backs up while the speed of the vehicle exceeds the first threshold, the digital rear-mirror device 120 may expand the angle of view F. Thereafter, when the speed of the vehicle decreases to below the first threshold or the backing of the vehicle is completed, for example, when the vehicle moves forward, the digital rear-mirror device 120 may reduce the angle of view F. In yet another embodiment, when the vehicle backs up while the vehicle speed is below the first threshold, the digital rear-mirror device 120 may move the center of the angle of view F downward from the origin. Thereafter, when the vehicle speed decreases to below the first threshold or the vehicle stops backing up, for example, when the vehicle moves forward, the digital rear-mirror device 120 may return the center of the angle of view F to the origin. Other embodiments are possible.

[0025] According to some embodiments, the camera device 110 and the digital rear-mirror device 120 may communicate with each other in a serial transmission manner. In such a case, the camera device 110 may include a serializer, and the digital rear-mirror device 120 may include a deserializer. The serializer and the deserializer are capable of bidirectional communication. Here, between the serializer and the deserializer, there may be a first channel from the serializer to the deserializer, and a second channel (also called a back channel) from the deserializer to the serializer. A rear image may be transmitted via the first channel. Here, the serializer may convert the rear image from parallel data to serial data, and the deserializer may convert the rear image from serial data to parallel data.

[0026] FIG. 6 is a flow chart illustrating a method of operation of the digital rearview mirror system 100 in accordance with various embodiments.

[0027] 6, in step 610, the digital rear-view mirror device 120 may detect the movement of the vehicle. In one embodiment, the digital rear-view mirror device 120 may detect the movement of the vehicle from controller area network (CAN) data from the vehicle. In another embodiment, the digital rear-view mirror device 120 may detect the movement of the vehicle by being driven by power supplied from the vehicle.

[0028] Next, while the vehicle is traveling, the camera device 110 may capture a rear image of the vehicle in step 620. Next, in step 630, the camera device 110 may transmit the rear image to the digital rear mirror device 120. That is, the digital rear mirror device 120 may receive the rear image from the camera device 110. In step 640, the digital rear mirror device 120 may display the rear image at an arbitrary angle of view F.

[0029] In one embodiment, the digital rear-mirror device 120 may have setting information recorded therein regarding the angle of view F. In such a case, the digital rear-mirror device 120 may detect a portion of the rear image according to the angle of view F, and display the detected portion in the display area. In another embodiment, the camera device 110 may be realized to have a variable focal length, and may be set to capture the rear image according to the angle of view F by one focal length. For example, the camera device 110 may have a variable focal length lens. In such a case, the digital rear-mirror device 120 may display the rear image as it is in the display area. In yet another embodiment, the camera device 110 may have setting information recorded therein regarding the angle of view F. In such a case, the camera device 110 may detect a portion of the rear image according to the angle of view F, and the digital rear-mirror device 120 may display the detected portion as it is in the display area.

[0030] Also, while the vehicle is traveling, in step 650, the digital rear-view mirror device 120 may acquire vehicle traveling information. At this time, the traveling information may include at least one of speed information indicating the speed of the vehicle, steering information related to the steering of the vehicle, and back information indicating the backing situation of the vehicle. In one embodiment, the digital rear-view mirror device 120 may acquire at least a part of the traveling information from CAN data from the vehicle. In another embodiment, the digital rear-view mirror device 120 may acquire the speed information by calculating the speed of the vehicle using the position information of the vehicle.

[0031] Next, in step 660, the digital rear-mirror device 120 may adjust the angle of view F for the rear image based on the driving information. According to the first embodiment, the digital rear-mirror device 120 may expand or reduce the angle of view F based on the speed of the vehicle. According to the second embodiment, the digital rear-mirror device 120 may move the center of the angle of view F left and right based on the steering direction and angle of the vehicle. According to the third embodiment, the digital rear-mirror device 120 may expand or reduce the center of the angle of view F based on the steering direction and angle of the vehicle. According to the fourth embodiment, the digital rear-mirror device 120 may expand or reduce the angle of view F for the background environment B based on the backing situation of the vehicle. According to the fifth embodiment, the digital rear-mirror device 120 may move the center of the angle of view F up and down with respect to the background screen B based on the backing situation of the vehicle. Other examples are possible.

[0032] In one embodiment, the digital rear-mirror device 120 may update the setting information to the adjusted angle of view F. In another embodiment, the digital rear-mirror device 120 may control the camera device 110 to capture a rearward image according to the angle of view F adjusted by the focal length adjustment. In still another embodiment, the digital rear-mirror device 120 may transmit the adjusted angle of view F to the camera device 110, and the camera device 110 may update the setting information to the adjusted angle of view F.

[0033] Next, while the vehicle is traveling, in step 670, the camera device 110 may capture a rear image of the vehicle. Next, in step 680, the camera device 110 may transmit the rear image to the digital rear mirror device 120. That is, the digital rear mirror device 120 may receive the rear image from the camera device 110. As a result, in step 690, the digital rear mirror device 120 may display the rear image at the adjusted angle of view F. In one embodiment, the digital rear mirror device 120 may record setting information related to the angle of view F. In such a case, the digital rear mirror device 120 may detect a part of the rear image according to the angle of view F and display the detected part in the display area. In another embodiment, the camera device 110 may be set to capture a rear image according to the angle of view F. In such a case, the digital rear mirror device 120 may display the rear image as it is in the display area. In still another embodiment, the camera device 110 may record setting information related to the angle of view F. In such a case, the camera device 110 may detect a part of the rear image according to the angle of view F, and the digital rear mirror device 120 may display the detected part as is in the display area.

[0034] FIG. 7 is a block diagram showing the internal configuration of a digital rear-mirror device 120 according to various embodiments.

[0035] Referring to FIG. 7, the digital rear-mirror device 120 may be mounted on the vehicle together with the camera device 110 and communicatively connected to the vehicle and the camera device 110. Specifically, the digital rear-mirror device 120 may include at least one of an input module 710, a sensor module 720, a communication module 730, an audio output module 740, a display module 750, an interface module 760, a memory 770, or a processor 780. In some embodiments, at least one of the components of the digital rear-mirror device 120 may be omitted, and at least one other component may be added. In some embodiments, at least two of the components of the digital rear-mirror device 120 may be realized as one integrated circuit. In one embodiment, all the components of the digital rear-mirror device 120 may be housed in a single housing, and in such a case, the housing may be located at the front of the vehicle, particularly in the case of a vehicle having an interior space, in front of the driver's seat in the interior space. That is, the digital rear-mirror device 120 may be located at a typical rear-mirror position. In other embodiments, only the display module 750 may be housed in a single housing, or the display module 750 and at least one other component (e.g., the input module 710, the sensor module 720) may be housed in a single housing, in which case the housing may be located at the front of the vehicle, particularly in front of the driver's seat in the interior space in the case of a vehicle having an interior space. That is, the display module 750 may be located in a typical rear-view mirror position, while the remaining components may be located elsewhere in the vehicle.

[0036] The input module 710 may input a signal for use with at least one component of the digital rear-mirror device 120. For example, the input module 710 may include at least one of a key, a button, a keyboard, a keypad, a mouse, a joystick, or a microphone. In some embodiments, the input module 710 may include at least one of touch circuitry configured to sense a touch or a sensor circuitry configured to measure the strength of a force generated by a touch.

[0037] The sensor module 720 may generate an electrical signal or data value corresponding to an internal operating condition (e.g., power or temperature) or an external environmental condition of the digital rear mirror device 120. For example, the sensor module 720 may include at least one of a radar sensor, a LIDAR sensor, a motion sensor, a gesture sensor, a gyro sensor, a pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0038] The communication module 730 may perform communication with an external device. The communication module 730 may establish a communication channel between the digital rear-mirror device 120 and the external device, and perform communication with the external device through the communication channel. Here, the external device may include at least one of a satellite, a base station, a server, or other electronic devices. The communication module 730 may include at least one of a wired communication module or a wireless communication module. The wired communication module may be wiredly connected to the external device through a connection terminal and perform wired communication. The wireless communication module may include at least one of a short-range communication module or a long-range communication module. The short-range communication module may communicate with the external device through a short-range communication method. For example, the short-range communication method may include at least one of Bluetooth, Wi-Fi direct, or infrared data association (IrDA). The long-range communication module may communicate with the external device through a long-range communication method. Here, the long-range communication module may communicate with the external device through a network. For example, the network may include at least one of a cellular network, the Internet, or a computer network such as a local area network (LAN) or a wide area network (WAN).

[0039] According to various embodiments, at least one of the input module 710, the sensor module 720, or the communication module 730 may generate a user input. For example, the user input may include at least one of a key (e.g., hard key or soft key) input or a voice input. In one embodiment, any sensor of the input module 710 or the sensor module 720 may generate the user input based on a signal directly input from a user. For example, at least one of a motion sensor, a gesture sensor, a proximity sensor, a temperature sensor, or an illuminance sensor may be utilized for the user input. In other embodiments, the communication module 730 may generate the user input based on a signal input from another electronic device utilized by the user.

[0040] The audio output module 740 may output an audio signal generated from the digital rear-mirror device 120. For example, the audio output module 740 may include at least one of a speaker or a receiver.

[0041] The display module 750 may be provided to display a rear image of the vehicle. To this end, the display module 750 may have a display area of ​​a predetermined size. For example, the display module 750 may include at least one of a display, a hologram device, or a projector. As an example, the display module 750 may be assembled with at least one of a touch circuit or a sensor circuit of the input module 710 and realized as a touch screen. According to various embodiments, the display module 750 may be disposed at the front of the vehicle, particularly in the case of a vehicle having an interior space, in front of the driver's seat of the interior space. That is, the display module 750 may be disposed at a general rear mirror position. Additionally, the display module 750 may further include another display area disposed around the display area for the rear image.

[0042] The interface module 760 may be provided for connection with an external device. Specifically, the interface module 760 may support a specified protocol that is connected to the external device by wire or wirelessly. According to some embodiments, the interface module 760 may communicate with the external device in a serial transmission manner. Here, the external device may include at least one of the vehicle or the camera device 110. If the digital rear-view mirror system 100 further includes other camera devices, the external device may also include other camera devices. In such a case, the interface module 760 may include a deserializer. The deserializer can bidirectionally communicate with the serializer of the camera device 110. Here, between the serializer and the deserializer, there may be a first channel from the serializer to the deserializer and a second channel (also called a back channel) from the deserializer to the serializer.

[0043] The memory 770 may store various data used by at least one component of the digital rear mirror device 120. For example, the memory 770 may include at least one of a volatile memory or a non-volatile memory. The data may include at least one program and input or output data associated therewith. The program may be stored in the memory 770 as software including at least one instruction and may include, for example, at least one of an operating system, middleware, or application.

[0044] The processor 780 may execute a program in the memory 770 to control at least one component. In this way, the processor 780 can process data or perform calculations. In this case, the processor 780 may execute instructions stored in the memory 770.

[0045] According to various embodiments, the processor 780 may adjust the angle of view F of a rear image displayed in the display area of ​​the display module 750 while the vehicle is traveling. Specifically, the processor 780 may adjust the angle of view F based on vehicle traveling information while the vehicle is traveling, and may thereby display a rear image in the display area of ​​the display module 750 according to the corresponding angle of view F. In this case, the traveling information may include at least one of speed information indicating the speed of the vehicle, steering information related to the steering of the vehicle, or backing information indicating a backing situation of the vehicle.

[0046] According to the first embodiment, the processor 780 may adjust the angle of view F based on the speed information. More specifically, the processor 780 may expand or reduce the angle of view F with respect to the background environment B based on the speed of the vehicle, as shown in FIG. 2a. As a result, the processor 780 may display a rear image on the display module 750 according to the corresponding angle of view F, as shown in FIG. 2b, to provide the vehicle driver with a rear view of various widths. At this time, when the speed of the vehicle increases to exceed a threshold, the processor 780 may expand the angle of view F. In this case, the processor 780 may provide the vehicle driver with a rear view of a wider range overall. Here, the speed threshold for expanding the angle of view F may be in the range of 80 to 120 km / h. On the other hand, when the speed of the vehicle decreases below the threshold, the processor 780 may reduce the angle of view F. In this case, the processor 780 may provide the vehicle driver with a rear view of a narrower range overall. Here, the speed threshold for reducing the angle of view F may be in the range of 20 to 40 km / h.

[0047] Here, the processor 780 may compare the speed of the vehicle with at least one threshold value, and for this purpose, the memory 770 may record registration information in which a plurality of speed ranges divided by the threshold value and the size of the angle of view F corresponding to each of the speed ranges are mapped. Here, the registration information may be recorded in the memory 770 when the processor 780 is manufactured, and the processor 780 may also change the registration information in the memory 770 based on a user input. Thus, the processor 780 may compare the speed of the vehicle with the threshold value and select the size of the angle of view F corresponding to one of the speed ranges, thereby expanding or reducing the angle of view F to the corresponding size. For example, FIG. 2a illustrates a case in which the processor 780 maps three speed ranges divided by two threshold values ​​and the size of the angle of view F corresponding to each of the speed ranges, but this is not limited thereto.

[0048] According to the second embodiment, the processor 780 may adjust the angle of view F based on the steering information. More specifically, the processor 780 may move the center of the angle of view F to the left or right with respect to the background environment B based on the steering direction and angle of the vehicle, as shown in FIG. 3a. As a result, the processor 780 may display a rear image on the display module 750 according to the corresponding angle of view F, as shown in FIG. 3b, and provide the driver of the vehicle with a rear view of various positions. At this time, the processor 780 may move the center of the angle of view F from the origin to the steering direction by the steering angle. In this case, the processor 780 may provide the driver of the vehicle with a wider range of rear view, for example, to the right or left side in the steering direction. For example, when the steering angle is to the right (clockwise), a wider range of rear view may be provided to the right by an angle corresponding to the steering angle. For example, when the steering angle is to the left (counterclockwise), a wider range of rear view may be provided to the left by an angle corresponding to the steering angle. Thereafter, when the steering angle is returned, the processor 780 may return the center of the angle of view F to the origin. In such a case, the processor 780 may provide the vehicle driver with the same range of rear vision on the right and left sides.

[0049] For example, when a vehicle changes lanes to the right, processor 780 may provide a wider rear view to the right rear of the vehicle, and once the vehicle is in the lane, processor 780 may provide an equal rear view to the right rear and left rear of the vehicle. Similarly, when a vehicle changes lanes to the left, processor 780 may provide a wider rear view to the left rear of the vehicle, and once the vehicle is in the lane, processor 780 may provide an equal rear view to the right rear and left rear of the vehicle.

[0050] According to the third embodiment, the processor 780 may adjust the angle of view F based on the steering information. More specifically, the processor 780 may expand or shrink the center of the angle of view F with respect to the background environment B based on the steering direction and angle of the vehicle, as shown in FIG. 2a. As a result, the processor 780 may display a rear image on the display module 750 according to the corresponding angle of view F (not shown in the figure), and provide the vehicle driver with a rear view of various widths. At this time, if the steering angle increases to exceed a threshold, the processor 780 may expand the angle of view F. In this case, the processor 780 may provide the vehicle driver with a rear view of a wider range overall, including the steering direction. Thereafter, if the steering angle decreases below the threshold, the processor 780 may shrink the angle of view F. In this case, the processor 780 may provide the vehicle driver with a rear view of a narrower range overall.

[0051] According to the fourth embodiment, the processor 780 may adjust the angle of view F based on the back information. More specifically, the processor 780 may expand or reduce the angle of view F with respect to the background environment B based on the backing situation of the vehicle, as shown in FIG. 4a. As a result, the processor 780 may display a rear image on the display module 750 according to the corresponding angle of view F, as shown in FIG. 4b, to provide the driver of the vehicle with a rear view of various widths. At this time, when the vehicle is backing up, the processor 780 may expand the angle of view F. In this case, the processor 780 may provide the driver of the vehicle with a rear view of a wider range overall. This helps prevent accidents when the vehicle is backing up. After this, when the backing up of the vehicle is completed, for example, when the vehicle moves forward, the processor 780 may reduce the angle of view F. In this case, the processor 780 may provide the driver of the vehicle with a rear view of a narrower range overall.

[0052] According to the fifth embodiment, the processor 780 may adjust the angle of view F based on the back information. More specifically, the processor 780 may move the center of the angle of view F up and down with respect to the background B based on the backing situation of the vehicle, as shown in FIG. 5a. As a result, the processor 780 may display a rear image on the display module 750 according to the corresponding angle of view F, as shown in FIG. 5b, to provide the driver of the vehicle with a rear view of various positions. At this time, when the vehicle backs up, the processor 780 may move the center of the angle of view F downward from the origin. In this case, the processor 780 may provide the driver of the vehicle with a wider range of rear view of the floor, for example, the ground. This may, for example, help the driver of the vehicle to easily park the vehicle. After this, when the backing of the vehicle is completed, for example, when the vehicle moves forward, the processor 780 may return the center of the angle of view F to the origin.

[0053] According to an additional embodiment, the processor 780 may adjust the angle of view F based on a combination of at least two of the speed information, the steering information, or the back information. In one embodiment, when the steering angle increases to exceed a second threshold while the vehicle speed exceeds a first threshold, the processor 780 may expand the angle of view F. Then, when the steering angle decreases to below the second threshold, the processor 780 may reduce the angle of view F. Alternatively, when the steering angle decreases to below the second threshold while the vehicle speed decreases to below the first threshold, the processor 780 may reduce the angle of view F. In another embodiment, the processor 780 may expand the angle of view F when the vehicle backs up while the vehicle speed exceeds the first threshold. Then, when the vehicle speed decreases to below the first threshold or the backing of the vehicle is completed, for example, when the vehicle moves forward, the processor 780 may reduce the angle of view F. In yet another embodiment, when the vehicle reverses while the vehicle speed is below the first threshold, processor 780 may move the center of angle of view F downward from the origin. Thereafter, when the vehicle speed decreases below the first threshold or the vehicle reverses, for example, when the vehicle moves forward, processor 780 may move the center of angle of view F back to the origin. Other implementations are possible.

[0054] Additionally, the processor 780 may analyze the rear image to detect reference information and display the reference information together with the rear image. The reference information may be information in the rear image, such as a road sign, or information derived from the rear image, such as a distance to an adjacent vehicle or a speed of the adjacent vehicle. As an example, the processor 780 may display the rear image and the reference information in a display area of ​​the display module 750. As another example, the processor 780 may display the reference information in another display area of ​​the display module 750 while displaying the rear image in the display area of ​​the display module 750. Here, the reference information may be displayed in various graphic representations, such as text, symbols, images, etc.

[0055] Additionally, the processor 780 may adjust the display module 750 or control the camera device 110 using a sensing input input via the sensor module 720. For example, the processor 780 may detect a sensing input indicating the surrounding brightness, etc., input via an illuminance sensor, etc. In such a case, the processor 780 may change at least one of the brightness or reflectance of the display module 750 using the sensing input. Alternatively, the processor 780 may change the light sensitivity of the camera device 110 or the brightness of the captured rear image based on the sensing input. Here, the processor 780 may determine a target value for the light sensitivity or the brightness of the rear image of the camera device 110 and transmit the target value to the camera device 110 or transmit the sensing input to the camera device 110.

[0056] FIG. 8 is a flow chart illustrating a method of operation of the digital rear mirror device 120 in various embodiments.

[0057] 8, in step 810, the digital rearview mirror device 120 may sense the movement of the vehicle. In one embodiment, CAN data from the vehicle is received via the interface module 760, which allows the processor 780 to sense the movement of the vehicle. In another embodiment, the processor 780 may be powered by power supplied from the vehicle, which allows the processor 780 to sense the movement of the vehicle.

[0058] Next, in step 820, while the vehicle is traveling, the digital rear-mirror device 120 may receive a rear image of the vehicle from the camera device 110. Specifically, the camera device 110 may capture a rear image and transmit the rear image to the digital rear-mirror device 120. Thus, the processor 780 may receive the rear image from the camera device 110 via the interface module 760. In some embodiments, the rear image may be transmitted via a first channel between the serializer of the camera device 110 and the deserializer of the interface module 760. Here, the serializer of the camera device 110 may convert the rear image from parallel data to serial data, and the deserializer of the interface module 760 may convert the rear image from serial data to parallel data. In some embodiments, the processor 780 may record the rear image in the memory 770. Next, in step 830, the digital rear-mirror device 120 may display the rear image at a determined angle of view F. Specifically, the processor 780 may display the rear image on the display module 750 at a determined angle of view.

[0059] In one embodiment, the memory 770 may store setting information related to the angle of view F. In such a case, the processor 780 may detect a part of the rear image according to the angle of view F and display the detected part in the display area of ​​the display module 750. Here, the processor 780 may resize the detected part to correspond to the display area of ​​the display module 750. In another embodiment, the camera device 110 may be realized to have a variable focal length and may be set to capture the rear image according to the angle of view F with one focal length. For example, the camera device 110 may have a variable focal length lens. In such a case, the processor 780 may display the rear image as it is in the display area of ​​the display module 750. Here, the processor 780 may resize the rear image to correspond to the display area of ​​the display module 750. In still another embodiment, the camera device 110 may store setting information related to the angle of view F. In this case, the camera device 110 may detect a portion of the rear image according to the angle of view F and transmit the portion to the digital rear mirror device 120, and the processor 780 may display the detected portion as is in the display area of ​​the display module 750. Here, the processor 780 may resize the detected portion to correspond to the display area of ​​the display module 750.

[0060] Thereafter, in step 840, while the vehicle is traveling, the digital rear-view mirror device 120 may acquire traveling information of the vehicle. At this time, the traveling information may include at least one of speed information indicating the speed of the vehicle, steering information related to the steering of the vehicle, or back information indicating the backing situation of the vehicle. In one embodiment, the processor 780 may receive CAN data from the vehicle via the interface module 760 and acquire at least a part of the traveling information from the CAN data. In another embodiment, the processor 780 may acquire the speed information using the position information of the vehicle. For example, the processor 780 may receive the position information of the vehicle via the communication module 730, and the position information may include GNSS (global navigation satellite system) information. As an example, the GNSS information may include GPS (global positioning system) information. As a result, the processor 780 may acquire the speed information by calculating the speed of the vehicle using the position information.

[0061] Next, in step 850, the digital rear-view mirror device 120 may determine whether to adjust the angle of view F for the rear image based on the driving information. Specifically, the processor 780 may determine whether to adjust the angle of view F for the rear image depending on whether the driving information meets a predetermined condition. According to the first embodiment, the processor 780 may compare the speed of the vehicle with at least one threshold value. At this time, the processor 780 may check whether the speed of the vehicle increases to exceed the threshold value, or check whether the speed of the vehicle decreases to below the threshold value. According to the second and third embodiments, the processor 780 may compare the steering angle of the vehicle with at least one threshold value. At this time, the processor 780 may check whether the steering angle increases to exceed the threshold value, or check whether the steering angle decreases to below the threshold value. According to the fourth and fifth embodiments, the processor 780 may determine whether the vehicle is backing up.

[0062] If it is determined in step 850 that the angle of view F does not need to be adjusted, the digital rearview mirror device 120 may repeat steps 820 to 850. Specifically, if the driving information does not meet a predetermined condition, the processor 780 may maintain the previously determined angle of view F and operate with the determined angle of view F. That is, the processor 780 may receive a rear image from the camera device 110 and obtain vehicle driving information while displaying the rear image at the previously determined angle of view F.

[0063] Meanwhile, if it is determined in step 850 that the angle of view F needs to be adjusted, in step 860, the digital rearview mirror device 120 may adjust the angle of view F for the rear image. Specifically, the processor 780 may expand or reduce the angle of view F, or move the center of the angle of view F left and right or up and down. According to the first embodiment, the processor 780 may expand the angle of view F when the vehicle speed increases to exceed a threshold, and may reduce the angle of view F when the vehicle speed decreases to below the threshold. According to the second embodiment, the processor 780 may move the center of the angle of view F from the origin to the steering direction when the steering angle increases to exceed a threshold, and may return the center of the angle of view F to the origin when the steering angle decreases to below the threshold. According to a third embodiment, the processor 780 may expand the angle of view F when the steering angle increases to exceed a threshold, and may reduce the angle of view F when the steering angle decreases to below the threshold. According to a fourth embodiment, the processor 780 may expand the angle of view F when the vehicle is backing up, and reduce the angle of view F when the vehicle finishes backing up, e.g., when the vehicle is moving forward. According to a fifth embodiment, the processor 780 may move the center of the angle of view F downward from the origin when the vehicle is backing up, and return the center of the angle of view F to the origin when the vehicle finishes backing up, e.g., when the vehicle is moving forward. Other implementations are possible.

[0064] In one embodiment, the processor 780 may update the setting information in the memory 770 to the adjusted angle of view F. In another embodiment, the processor 780 may control the camera device 110 to capture a rear image according to the angle of view F adjusted by the focal length adjustment. Here, the processor 780 may transmit a control signal to the camera device 110 via a second channel between the serializer of the camera device 110 and the deserializer of the interface module 760. In still another embodiment, the processor 780 may transmit the adjusted angle of view F to the camera device 110, and the camera device 110 may update the setting information to the adjusted angle of view F. Here, the processor 780 may transmit the adjusted angle of view F to the camera device 110 via a second channel between the serializer of the camera device 110 and the deserializer of the interface module 760.

[0065] Next, if the end of the vehicle's travel is not detected in step 870, the digital rear-view mirror device 120 may repeat at least a part of steps 820 to 870. Specifically, the processor 780 may operate at a newly determined angle of view F through adjustment. That is, the processor 780 may receive a rear image from the camera device 110 and obtain vehicle travel information while displaying the rear image at the determined angle of view F. Thereafter, the processor 780 may maintain or further adjust the determined angle of view F based on the travel information. In this manner, the digital rear-view mirror device 120 may repeat at least a part of steps 820 to 870 until the end of the vehicle's travel is detected in step 870.

[0066] On the other hand, when it is detected in step 870 that the vehicle has ended its travel, the digital rearview mirror device 120 may end its operation. In one embodiment, when CAN data is received from the vehicle via the interface module 760, the processor 780 may detect that the vehicle has ended its travel from the CAN data. In another embodiment, when CAN data is no longer received from the vehicle via the interface module 760, the processor 780 may detect that the vehicle has ended its travel. In still another embodiment, the processor 780 may detect that the vehicle has ended its travel when power is no longer supplied from the vehicle.

[0067] According to various embodiments, the digital rear-mirror device 120 can provide an unobstructed rear view to the driver of the vehicle by displaying the rear image of the vehicle captured by the camera device 110. In particular, the digital rear-mirror device 120 can support the driver in driving the vehicle safely by flexibly adjusting the angle of view F for the rear image based on the driving information of the vehicle while the vehicle is traveling. That is, the digital rear-mirror device 120 can automatically provide the driver with the rear view required to drive the vehicle according to the driving state of the vehicle. For example, the digital rear-mirror device 120 can adjust the angle of view F when the vehicle changes speed, changes lanes, or backs up. According to one embodiment, when the digital rear-mirror device 120 detects a part of the rear image according to the angle of view F, the camera device 110 transmits the captured rear image, so that a general camera device can be used without modification. According to another embodiment, when the camera device 110 is realized so that the angle of view can be adjusted by adjusting the focal length, the camera device 110 can transmit the captured rear image as it is once set. According to another embodiment, when the camera device 110 detects a portion of the rear image according to the angle of view F, only the detected portion is transmitted from the camera device 110, thereby reducing the transmission load between the digital rear mirror device 120 and the camera device 110.

[0068] In summary, the present disclosure provides a digital rear-mirror device 120 capable of adjusting the angle of view F while the vehicle is traveling, and a method of operating the same.

[0069] In the present disclosure, the digital rear mirror device 120 of the vehicle may include a display module 750 configured to display a rear image of the vehicle, and a processor 780 connected to the display module 750 and configured to obtain driving information of the vehicle while the vehicle is traveling, and adjust the angle of view F of the rear image based on the driving information.

[0070] According to various embodiments, the driving information may include at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or backing information indicating a backing situation of the vehicle.

[0071] According to a first embodiment, the processor 780 may be configured to increase the angle of view F when the velocity increases above a threshold and decrease the angle of view F when the velocity decreases below the threshold.

[0072] According to a second embodiment, the processor 780 may be configured to move the center of the angle of view F from the origin in the steering direction by the steering angle, and to return the center of the angle of view F to the origin when the steering angle returns.

[0073] According to a third embodiment, the processor 780 may be configured to increase the angle of view F when the steering angle increases above a threshold and decrease the angle of view F when the steering angle decreases below the threshold.

[0074] According to a fourth embodiment, the processor 780 may be configured to widen the angle of view F when reversing.

[0075] According to the fifth embodiment, the processor 780 may be configured to move the center of the angle of view F downward from the origin when backing up.

[0076] According to various embodiments, at least a portion of the travel information may be obtained from the vehicle.

[0077] In some embodiments, the digital rear-mirror device 120 further includes a communication module 730 configured to receive vehicle position information, and the processor 780 may be configured to calculate the speed using the position information.

[0078] According to one embodiment, the processor 780 may be configured to receive the rear image from the camera device 110 , detect a portion of the rear image according to the angle of view F, and display the detected portion on the display module 750 .

[0079] According to another embodiment, the processor 780 may be configured to control the camera device 110 to capture the rear image according to the angle of view F, receive the rear image from the camera device 110, and display the rear image on the display module 750.

[0080] According to another embodiment, the camera device 110 may be configured to capture a rear image, detect a portion of the rear image according to the angle of view F, and transmit the detected portion to the digital rear mirror device 120, and the processor 780 may be configured to transmit the angle of view F to the camera device 110, receive the detected portion from the camera device 110, and display the detected portion on the display module 750.

[0081] In the present disclosure, an operating method of the digital rear mirror device 120 of a vehicle may include a step of acquiring vehicle driving information while the vehicle is driving (step 840), a step of adjusting a viewing angle F of a rear image of the vehicle based on the driving information (step 860), and a step of displaying the rear image according to the viewing angle F (steps 820 and 830).

[0082] According to various embodiments, the driving information may include at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or backing information indicating a backing situation of the vehicle.

[0083] According to the first embodiment, the step of adjusting the angle of view F (step 860) may include a step of expanding the angle of view F when the velocity increases above a threshold, and a step of contracting the angle of view F when the velocity decreases below the threshold.

[0084] According to a second embodiment, the step of adjusting the angle of view F (step 860) may include a step of moving the center of the angle of view F from the origin in the steering direction by the steering angle, and a step of returning the center of the angle of view F to the origin when the steering angle is returned.

[0085] According to a third embodiment, the step of adjusting the angle of view F (step 860) may include a step of expanding the angle of view F when the steering angle increases above a threshold, and a step of reducing the angle of view F when the steering angle decreases below the threshold.

[0086] According to the fourth embodiment, adjusting the angle of view F (step 860) may include expanding the angle of view F when backing up.

[0087] According to the fifth embodiment, adjusting the angle of view F (step 860) may include adjusting the center of the angle of view F to move downward from the origin when backing up.

[0088] According to various embodiments, at least a portion of the travel information may be obtained from the vehicle.

[0089] In some embodiments, obtaining travel information (Step 840) may include receiving vehicle location information and using the location information to calculate speed.

[0090] According to one embodiment, the steps of displaying a rear image according to an angle of view F (step 820 and step 830) may include a step of receiving a rear image from a camera device 110 (step 820), a step of detecting a portion of the rear image according to the angle of view, and a step of displaying the detected portion (step 830).

[0091] According to another embodiment, the operating method of the digital rear mirror device 120 further includes a step of controlling the camera device 110 to capture a rear image according to the angle of view F, and the step 830 of displaying the rear image according to the angle of view F may include a step of receiving a rear image from the camera device 110 (step 820) and a step of displaying the rear image (step 830).

[0092] According to another embodiment, the operating method of the digital rear-mirror device 120 may further include a step of transmitting the angle of view F to the camera device 110, and the camera device 110 may include a step of capturing a rear image, detecting a portion of the rear image according to the angle of view F, transmitting the detected portion to the digital rear-mirror device 120, and displaying the rear image according to the angle of view F (steps 820 and 830), and a step of displaying the detected portion.

[0093] In the present disclosure, a digital rear-view mirror system 100 for a vehicle may include a camera device 110 configured to capture a rear image of the vehicle, and a digital rear-view mirror device 120 configured to acquire driving information of the vehicle while the vehicle is traveling, adjust a viewing angle F of the rear image based on the driving information, and display the rear image according to the viewing angle F.

[0094] According to various embodiments, the driving information may include at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or backing information indicating a backing situation of the vehicle.

[0095] According to the first embodiment, the digital rear mirror device 120 may be configured to increase the angle of view F when the speed increases above a threshold, and to decrease the angle of view F when the speed decreases below the threshold.

[0096] According to the second embodiment, the digital rear mirror device 120 may be configured so that the center of the angle of view F moves from the origin in the steering direction by the steering angle, and when the steering angle returns, the center of the angle of view F returns to the origin.

[0097] According to the third embodiment, the digital rear mirror device 120 may be configured to increase the angle of view F when the steering angle increases above a threshold, and to decrease the angle of view F when the steering angle decreases below the threshold.

[0098] According to the fourth embodiment, the digital rear-mirror device 120 may be configured to widen the angle of view F when backing up.

[0099] According to the fifth embodiment, the digital rear mirror device 120 may be configured so that the center of the angle of view F moves downward from the origin when backing up.

[0100] In the present disclosure, a method of operating the digital rear-mirror system 100 of a vehicle may include a step (step 650) of the digital rear-mirror device 120 acquiring driving information of the vehicle while the vehicle is traveling, a step (step 660) of the digital rear-mirror device 120 adjusting the angle of view F for the rear image of the vehicle based on the driving information, and a step (step 690) of the digital rear-mirror device 120 displaying the rear image received from the camera device 110 in accordance with the angle of view F.

[0101] According to various embodiments, the driving information may include at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or backing information indicating a backing situation of the vehicle.

[0102] According to a first embodiment, the step of adjusting the angle of view F (step 660) may include a step of expanding the angle of view F when the velocity increases above a threshold, and a step of contracting the angle of view F when the velocity decreases below the threshold.

[0103] According to a second embodiment, the step of adjusting the angle of view F (step 660) may include a step of moving the center of the angle of view F from the origin in the steering direction by the steering angle, and a step of returning the center of the angle of view F to the origin when the steering angle is returned.

[0104] According to a third embodiment, the step of adjusting the angle of view F (step 660) may include a step of expanding the angle of view F when the steering angle increases above a threshold, and a step of reducing the angle of view F when the steering angle decreases below the threshold.

[0105] According to the fourth embodiment, adjusting the angle of view F (step 660) may include expanding the angle of view F when backing up.

[0106] According to the fifth embodiment, adjusting the angle of view F (step 660) may include adjusting the center of the angle of view F downward from the origin during backing up.

[0107] 9 is a block diagram showing a vehicle 2000 equipped with a digital rearview mirror system 100 according to various embodiments. FIG 10 is a block diagram showing a control device 2100 of the vehicle of FIG 9.

[0108] 9 and 10, the digital rear-view mirror system 100 according to various embodiments may be mounted on a vehicle 2000, and the vehicle 2000 may include a control device 2100. In this case, the vehicle 2000 may be an autonomous vehicle. In some embodiments, at least one component of the camera device 110 or at least one component of the digital rear-view mirror device 120 may be integrated into at least one component of the control device 2100.

[0109] The control device 2100 may include a controller 2120 including a memory 2122 and a processor 2124 , a sensor 2110 , a wireless communication device 2130 , a LIDAR 2140 , and a camera module 2150 .

[0110] The controller 2120 may be configured at the time of manufacture by the vehicle manufacturer, may be additionally configured after manufacture to perform autonomous driving functions, or may include configuration to perform additional ongoing functions by upgrading the controller 2120 configured at manufacture.

[0111] The controller 2120 may transmit control signals to other components included in the vehicle, such as the sensor 2110, the engine 2006, the user interface 2008, the wireless communication device 2130, the LIDAR 2140, and the camera module 2150. The controller 2120 may also transmit control signals to an acceleration device, a braking system, a steering device, or a navigation device associated with the running of the vehicle, which are not shown in the figure.

[0112] The controller 2120 may control the engine 2006, for example, by detecting the speed limit of the road on which the vehicle 2000 is traveling and controlling the engine 2006 so that the traveling speed does not exceed the speed limit, or by controlling the engine 2006 so that the traveling speed of the vehicle 2000 accelerates within a range not exceeding the speed limit. Additionally, when the sensing modules 2004a, 2004b, 2004c, and 2004d detect the environment outside the vehicle and transmit it to the sensor 2110, the controller 2120 may receive it and generate a signal to control the engine 2006 or a steering device (not shown) to control the traveling of the vehicle.

[0113] The controller 2120 may control the engine 2006 or the brake system to decelerate the traveling vehicle when there is another vehicle or an obstacle ahead of the vehicle, and may control the trajectory, driving path, steering angle, and other aspects of the speed. Alternatively, the controller 2120 may generate necessary control signals to control the traveling of the vehicle according to other external environment recognition information such as the lane the vehicle is traveling in, driving signals, and the like.

[0114] In addition to generating its own control signals, the controller 2120 can also control the running of the vehicle by communicating with surrounding vehicles or a central server and sending instructions to control peripheral devices based on the information received.

[0115] In addition, when the position or angle of view of the camera module 2150 is changed, the vehicle or lane may not be accurately recognized. To prevent this, the controller 2120 may generate a control signal to control the camera module 2150 to perform calibration. Therefore, the controller 2120 can continue to maintain the normal mounting position, direction, angle of view, etc. of the camera module 2150 by generating a calibration control signal through the camera module 2150, even if the mounting position of the camera module 2150 is changed due to vibration or impact caused by the movement of the autonomous vehicle 2000. The controller 2120 may generate a control signal to perform calibration of the camera module 2150 when the initial mounting position, direction, angle of view information of the camera module 2150 stored in advance and the initial mounting position, direction, angle of view information, etc. of the camera module 2150 measured during the traveling of the autonomous vehicle 2000 differ by a threshold value or more.

[0116] The controller 2120 may include a memory 2122 and a processor 2124. The processor 2124 may execute software stored in the memory 2122 in accordance with control signals from the controller 2120. Specifically, the controller 2120 may store data and instructions in the memory 2122 for detecting a field of view image from a rear image of the vehicle 2000, and the instructions may be executed by the processor 2124 to implement one or more methods disclosed herein.

[0117] In this case, the memory 2122 may be stored in a non-volatile recording medium executable by the processor 2124. The memory 2122 may store software and data through an appropriate internal or external device. The memory 2122 may be configured with a memory 2122 device connected to a RAM (random access memory), a ROM (read only memory), a hard disk, or a dongle.

[0118] The memory 2122 may store at least an operating system (OS), user applications, and executable instructions, and may also store application data and array data structures.

[0119] The processor 2124 may be a microprocessor or any suitable electronic processor, such as a controller, microcontroller, or state machine.

[0120] The processor 2124 may be implemented by a combination of computing devices, which may be digital signal processors, microprocessors, or any suitable combination thereof.

[0121] The controller 2100 may also monitor interior and exterior characteristics of the vehicle 2000 via at least one or more sensors 2110 to sense conditions.

[0122] The sensor 2110 may be configured with at least one or more sensing modules 2004, which may be implemented in a specific location of the vehicle 2000 depending on the purpose of sensing. The sensing modules 2004 may be located at the bottom, rear end, front end, top or side end of the vehicle 2000, may be located in an internal part or tire of the vehicle, etc.

[0123] Thus, the sensing module 2004 can sense information related to driving, such as the engine 2006, tires, steering angle, speed, vehicle weight, etc., as internal information of the vehicle. In addition, at least one of the sensing modules 2004 may be configured with an acceleration sensor 2110, a gyroscope, an image sensor 2110, a RADAR, an ultrasonic sensor, a LiDAR sensor, etc., and may sense motion information of the vehicle 2000.

[0124] The sensing module 2004 can receive specific data on external environmental conditions such as road condition information on the road where the vehicle 2000 is located, surrounding vehicle information, weather, etc. as external information, and can sense vehicle parameters based on the data. The sensed information can be temporarily or long-term stored in the memory 2122 depending on the purpose.

[0125] The sensor 2110 may integrate and collect information from the sensing module 2004 to collect information occurring inside and outside the vehicle 2000.

[0126] The control device 2100 may further include a wireless communication device 2130 .

[0127] The wireless communication device 2130 is configured to realize wireless communication between the vehicles 2000. For example, it allows the vehicle 2000 to communicate with a user's mobile phone, or other wireless communication devices 2130, other vehicles, a central device (traffic control device), a server, etc. The wireless communication device 2130 may transmit and receive wireless signals according to a connection wireless protocol. The wireless communication protocol may be Wi-Fi, Bluetooth, Long-Term Evolution (LTE), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Global Systems for Mobile Communications (GSM), but the communication protocol should not be limited thereto.

[0128] The vehicle 2000 may also realize inter-vehicle communication through the wireless communication device 2130. That is, the wireless communication device 2130 may perform communication with other vehicles on the road and other vehicles through vehicle-to-vehicle (V2V) communication. The vehicle 2000 may transmit and receive information such as driving warnings and traffic information through the inter-vehicle communication, and may also request information from and receive requests from other vehicles. For example, the wireless communication device 2130 may perform V2V communication as a dedicated short-range communication (DSRC) device or a C-V2V (Celluar-V2V) device. In addition to inter-vehicle communication, communication between vehicles and other things (e.g., electronic devices carried by pedestrians) (V2X, Vehicle to Everything communication) may also be realized through the wireless communication device 2130.

[0129] The control device 2100 may also include a LIDAR device 2140. The LIDAR device 2140 may detect objects around the vehicle 2000 during operation using data sensed through the LIDAR sensor. The LIDAR device 2140 may transmit detected information to the controller 2120, and the controller 2120 may operate the vehicle 2000 based on the detected information. For example, when the detection information indicates that there is a vehicle traveling at a low speed ahead, the controller 2120 may command the engine 2006 to reduce the vehicle speed. Alternatively, the controller 2120 may command the vehicle to reduce the entry speed according to the curvature of the curve into which the vehicle is entering.

[0130] The control device 2100 may further include a camera module 2150. The controller 2120 may extract object information from an external image captured by the camera module 2150, and the controller 2120 may process the information related thereto.

[0131] The control device 2100 may further include an imaging device for recognizing the external environment. In addition to the LIDAR 2140, RADAR, GPS devices, odometry devices, and other computer vision devices may be used, which may be selected or operated simultaneously as needed to enable more precise sensing.

[0132] The vehicle 2000 may further include a user interface 2008 for user input to the control device 2100 described above. The user interface 2008 may allow the user to input information through appropriate interaction. For example, the user interface 2008 may be realized by a touch screen, a keypad, an operation button, etc. The user interface 2008 may transmit the input or command to the controller 2120, and the controller 2120 may execute a control operation of the vehicle in response to the input or command.

[0133] The user interface 2008 may be a device external to the vehicle 2000 and may communicate with the vehicle 2000 through the wireless communication device 2130. For example, the user interface 2008 may be capable of linking with a mobile phone, tablet, or other computer device.

[0134] Additionally, while the vehicle 2000 has been described as including the engine 2006, it may include other types of propulsion systems. For example, the vehicle may be powered by electric energy, hydrogen energy, or a hybrid system that combines these. Thus, the controller 2120 may include propulsion mechanisms according to the propulsion system of the vehicle 2000 and provide corresponding control signals to the configuration of each propulsion mechanism.

[0135] Hereinafter, the detailed configuration of the control device 2100 for adjusting the angle of view F for the rear image of the vehicle 2000 will be described in more detail with reference to FIG.

[0136] The controller 2100 includes a processor 2124. The processor 2124 may be a general purpose single or multi-chip microprocessor, a special purpose microprocessor, a microcontroller, a programmable gate array, etc. A processor is also referred to as a central processing unit (CPU). The processor 2124 may also be used with a combination of multiple processors.

[0137] The controller 2100 includes a memory 2122. The memory 2122 may be any electronic component capable of storing electronic information. The memory 2122 may also include a single memory as well as a combination of memories 2122.

[0138] According to various embodiments, data and instructions 2122a for adjusting the angle of view F for the rear image of the vehicle 2000 may be stored in the memory 2122. When the processor 2124 executes the instructions 2122a, all or a portion of the instructions 2122a and data 2122b required to execute the instructions may be loaded 2124a, 2124b onto the processor 2124.

[0139] The controller 2100 may include a transmitter 2130a, a receiver 2130b, or a transceiver 2130c to allow transmission and reception of signals. One or more antennas 2132a, 2132b may be electrically connected to the transmitter 2130a, the receiver 2130b, or each transceiver 2130c, and may additionally include an antenna.

[0140] The controller 2100 may include a digital signal processor (DSP) 2170. The DSP 2170 may enable the vehicle to quickly process digital signals.

[0141] The controller 2100 may include a communication interface 2180. The communication interface 2180 may include one or more ports and / or communication modules for connecting other devices to the controller 2100. The communication interface 2180 may allow a user and the controller 2100 to interact.

[0142] The various components of the controller 2100 may be connected via one or more buses 2190, which may include a power bus, a control signal bus, a status signal bus, a data bus, etc. Under the control of the processor 2124, the components may communicate information with each other via the bus 2190 to perform their intended functions.

[0143] The above-mentioned devices may be realized by hardware components, software components, and / or a combination of hardware and software components. For example, the devices and components described in the embodiments may be realized using one or more general-purpose or special-purpose computers, such as a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), a programmable logic unit (PLU), a microprocessor, or various devices capable of executing and responding to instructions. The processing device may execute an operating system (OS) and one or more software applications that run on the OS. The processing device may also respond to the execution of the software to access, record, manipulate, process, and generate data. For convenience of understanding, a single processing device may be described as being used, but one skilled in the art will understand that the processing device may include multiple processing elements and / or multiple types of processing elements. For example, the processing device may include multiple processors or one processor and one controller. Other processing configurations, such as parallel processors, are also possible.

[0144] The software may include computer programs, codes, instructions, or a combination of one or more of these, and may configure a processing device to operate as desired or instruct the processing device, either independently or collectively. The software and / or data may be embodied in any type of machine, component, physical device, computer storage medium, or device to be interpreted by the processing device or to provide instructions or data to the processing device. The software may be distributed and stored or executed in a distributed manner on computer systems connected by a network. The software and data may be stored on one or more computer-readable storage media.

[0145] The method according to the embodiment may be realized in the form of program instructions executable by various computer means and recorded on a computer-readable medium. In this case, the medium may be one that continuously records a program executable by a computer, or one that temporarily records the program for execution or download. The medium may be one of various recording means or storage means in the form of a single or multiple hardware devices combined, and may be a medium directly connected to a certain computer system, or may be one that is distributed on a network. Examples of the medium include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and media configured to record program instructions such as ROMs, RAMs, flash memories, etc. Examples of other media include recording media and storage media managed by app stores that distribute applications, sites that supply or distribute various other software, and servers.

[0146] The various embodiments and terms used herein should not be understood to limit the technology described herein to a particular embodiment, but should be understood to include various modifications, equivalents, and / or substitutes of the embodiment. In connection with the description of the drawings, similar reference numerals have been used for similar components. A singular expression may include a plural expression unless the context clearly indicates otherwise. In this specification, expressions such as "A or B," "at least one of A and / or B," "A, B, or C," or "at least one of A, B, and / or C" may include all possible combinations of the listed items. Expressions such as "first," "second," "first," or "second" modify the corresponding component regardless of order or importance, and are used only to distinguish a certain component from other components, and do not limit the component. When a (e.g., first) component is described as being "(functionally or communicatively) coupled" or "connected" to another (e.g., second) component, the one component may be directly connected to the other component or may be connected through another component (e.g., a third component).

[0147] The term "module" as used herein includes a unit configured of hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integrally configured component, or a minimum unit or part thereof that performs one or more functions. For example, a module may be configured as an application-specific integrated circuit (ASIC).

[0148] According to various embodiments, each component (e.g., a module or program) of the described components may include one or more objects. According to various embodiments, one or more components or steps of the above-mentioned components may be omitted, or one or more different components or steps may be added. Alternatively or additionally, multiple components (e.g., modules or programs) may be integrated into one component. In such a case, the integrated component may perform one or more functions of each of the multiple components in a manner that is the same or similar to that performed by the corresponding component of the multiple components before integration. According to various embodiments, the steps performed by the modules, programs, or other components may be performed sequentially, in parallel, iteratively, or heuristically, one or more of the steps may be performed in a different order, omitted, or one or more different steps may be added. [Explanation of symbols]

[0149] 110: Camera equipment 120: Digital rear-view mirror device

Claims

1. A digital rear-view mirror device for a vehicle, comprising: a display module configured to display a rear view of the vehicle; and a processor connected to the display module and configured to acquire driving information of the vehicle while the vehicle is traveling and adjust a viewing angle of the rear image based on the driving information; Including, Digital rear-view mirror device.

2. The travel information includes at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or back information indicating a backing state of the vehicle. The digital rear-mirror device according to claim 1 .

3. The processor, expanding the angle of view when the velocity increases beyond a threshold; configured to reduce the angle of view when the velocity decreases below the threshold. The digital rear-mirror device according to claim 2 .

4. The processor, The center of the angle of view is moved from the origin in the direction of the steering by the steering angle, When the steering angle is returned, the center of the angle of view is returned to the origin. The digital rear-mirror device according to claim 2 .

5. The processor, During the backing up, the angle of view is expanded and the center of the angle of view moves downward from the origin. The digital rear-mirror device according to claim 2 .

6. At least a portion of the driving information is acquired from the vehicle. The digital rear-mirror device according to claim 1 .

7. a communication module configured to receive location information of the vehicle; Further comprising: The processor, configured to utilize the position information to calculate the velocity; The digital rear-mirror device according to claim 2 .

8. The processor, configured to receive the rear image from a camera device, detect a portion of the rear image according to the angle of view, and display the detected portion on the display module; The digital rear-mirror device according to claim 1 .

9. The processor, The camera device is controlled to capture the rear image according to the angle of view, the rear image is received from the camera device, and the rear image is displayed on the display module. The digital rear-mirror device according to claim 1 .

10. The camera device is The rear image is captured, a portion of the rear image is detected according to the angle of view, and the detected portion is transmitted to the digital rear mirror device. The processor, configured to communicate the angle of view to the camera device, receive the detected portion from the camera device, and display the detected portion on the display module. The digital rear-mirror device according to claim 1 .

11. A method for operating a digital rear-mirror device for a vehicle, comprising: acquiring driving information of the vehicle while the vehicle is traveling; adjusting a viewing angle for a rear image of the vehicle based on the driving information; and displaying the rear image according to the angle of view Including, A method for operating a digital rear-view mirror device.

12. The travel information includes at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or back information indicating a backing state of the vehicle. A method for operating a digital rear-mirror device according to claim 11.

13. The step of adjusting the angle of view includes: expanding the angle of view when the velocity increases above a threshold; and reducing the angle of view when the velocity decreases below the threshold. Including, A method for operating a digital rear-mirror device according to claim 12.

14. The step of adjusting the angle of view includes: moving the center of the angle of view from an origin in the direction of the steering by the steering angle; and When the steering angle is returned, the center of the angle of view is returned to the origin. Including, A method for operating a digital rear-mirror device according to claim 12.

15. The step of adjusting the angle of view includes: expanding the angle of view during the backing up; or and moving the center of the angle of view downward from the origin when the vehicle is backing up. at least one of A method for operating a digital rear-mirror device according to claim 12.

16. At least a portion of the driving information is acquired from the vehicle. A method for operating a digital rear-mirror device according to claim 11.

17. The step of acquiring the driving information includes: receiving location information of the vehicle; and Calculating the velocity using the position information. Including, A method for operating a digital rear-mirror device according to claim 12.

18. The step of displaying the rear image according to the angle of view includes: receiving the rear image from a camera device; detecting a portion of the rear image according to the angle of view; and Displaying the detected portion. Including, A method for operating a digital rear-mirror device according to claim 11.

19. controlling a camera device to capture the rear image according to the angle of view Further comprising: The step of displaying the rear image according to the angle of view includes: receiving the rear image from the camera device; and displaying the rear image Including, A method for operating a digital rear-mirror device according to claim 11.

20. transmitting the angle of view to a camera device; Further comprising: The camera device includes: capturing the rear image, detecting a portion of the rear image according to the angle of view, and transmitting the detected portion to the digital rear mirror device; The step of displaying the rear image according to the angle of view includes: receiving the detected portion from the camera device; and Displaying the detected portion. Including, A method for operating a digital rear-mirror device according to claim 11.

21. A digital rearview mirror system for a vehicle, comprising: A camera device configured to capture a rear image of the vehicle; and a digital rear-view mirror device configured to acquire driving information of the vehicle while the vehicle is traveling, adjust a viewing angle of the rear image based on the driving information, and display the rear image according to the viewing angle; Including, Digital rear-view mirror system.

22. The travel information includes at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or back information indicating a backing state of the vehicle.

22. The digital rear-mirror system of claim 21.

23. The digital rear-mirror device includes: expanding the angle of view when the velocity increases beyond a threshold; configured to reduce the angle of view when the velocity decreases below the threshold.

23. A digital rear-mirror system as claimed in claim 22.

24. The digital rear-mirror device includes: The center of the angle of view is moved from the origin in the direction of the steering by the steering angle, When the steering angle is returned, the center of the angle of view is returned to the origin.

23. A digital rear-mirror system as claimed in claim 22.

25. The digital rear-mirror device includes: During the backing up, the angle of view is expanded and the center of the angle of view moves downward from the origin.

23. A digital rear-mirror system as claimed in claim 22.

26. 1. A method of operating a digital rearview mirror system for a vehicle, comprising: A step in which the digital rear-view mirror device acquires driving information of the vehicle while the vehicle is traveling; The digital rear-view mirror device adjusts an angle of view for a rear image of the vehicle based on the driving information; and The digital rear-mirror device displays a rear image received from a camera device according to the angle of view. Including, How the digital rearview mirror system works.

27. The travel information includes at least one of speed information indicating a speed of the vehicle, steering information related to steering of the vehicle, or back information indicating a backing state of the vehicle.

27. A method of operating a digital rear mirror system according to claim 26.

28. The step of adjusting the angle of view includes: expanding the angle of view when the velocity increases above a threshold; and reducing the angle of view when the velocity decreases below the threshold. Including, 28. A method of operating a digital rear-mirror system according to claim 27.

29. The step of adjusting the angle of view includes: a step of moving the center of the angle of view from the origin in the direction of the steering by an angle of the steering; and When the steering angle is returned, the center of the angle of view is returned to the origin. Including, 28. A method of operating a digital rear-mirror system according to claim 27.

30. The step of adjusting the angle of view includes: expanding the angle of view during the backing up; or and moving the center of the angle of view downward from the origin when the vehicle is backing up. at least one of 28. A method of operating a digital rear-mirror system according to claim 27.

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