Vehicle electronic mirror device
A single rear camera system with multiple display sections on the electronic mirror addresses the limitations of dual-camera systems, enabling comprehensive rearview image adjustment for safe reversing.
Patent Information
- Application Number
- JP2024010234
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-26
- Publication Date
- 2025-08-07
AI Technical Summary
Existing vehicle electronic mirror systems require two imaging cameras and have fixed fields of view, limiting their ability to provide wide-area information behind the vehicle, particularly during backing up.
A single rear camera captures a wide area behind the vehicle, including the lower and distant rear areas, and an electronic mirror displays these areas in multiple divided sections, adjusting images as needed for optimal viewing.
Enables reliable and easy checking of children or objects near the vehicle, and detection of approaching hazards, enhancing safe reversing by providing comprehensive rearview images.
Smart Images

Figure 2025115667000001_ABST
Abstract
Description
[Background technology]
[0001] BACKGROUND ART Conventionally, a vehicle electronic mirror device (system) that displays the state inside the vehicle and the state outside the vehicle as seen from the left and right side mirror positions on an electronic mirror installed inside the vehicle has been known (see Patent Document 1). [Prior art documents] [Patent documents]
[0002] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-165292 Summary of the Invention [Problem to be solved by the invention]
[0003] However, the invention disclosed in Patent Document 1 has the following problems: (i) two imaging cameras, one on the left and one on the right, are required, and (ii) each of the left and right imaging cameras only captures a fixed direction and a fixed field of view.
[0004] Therefore, the present invention aims to solve these problems and reliably provide a wide variety of wide-area information behind the vehicle using a single camera, particularly visual information that requires attention when backing up the vehicle. [Means for solving the problem]
[0005] The present invention provides an electronic mirror device comprising a vehicle-mounted rear camera that captures a wide area behind the vehicle, including the lower rear area and the distant rear area, and an electronic mirror inside the vehicle that displays the image captured by the rear camera as an image; the electronic mirror is configured to be capable of being divided into multiple display sections; and the multiple display sections of the electronic mirror are configured to display the wide area behind the vehicle captured by the rear camera as multiple images divided into multiple areas.
[0006] Also, there is provided an electronic mirror device comprising a vehicle-mounted rear camera that photographs a wide area behind the vehicle, including the lower rear area and the distant rear area, and an electronic mirror inside the vehicle that displays the image photographed by the rear camera as an image; the electronic mirror is configured to be capable of being divided into multiple display sections; and the multiple display sections of the electronic mirror are configured to display multiple images divided into multiple areas, including the lower rear area and the distant rear area photographed by the rear camera.
[0007] The multiple images displayed on the electronic mirror are obtained by adjusting the original images, such as by enlarging them or adjusting their aspect ratios, as necessary. Furthermore, when it is detected that the shift position of the vehicle has been switched to the reverse position, the image is started to be displayed on the electronic mirror. [Effects of the Invention]
[0008] According to the present invention, only one rear camera is required. Moreover, the electronic mirror displays the lower rear area, making it possible to reliably and easily check children playing in the lower rear area of the vehicle or objects such as bicycles placed close to the rear of the vehicle.
[0009] Furthermore, the electronic mirror displays a distant area behind (or a wide area behind), making it possible to reliably and easily check for dangerously driving cars, motorcycles, etc. from behind, or large trucks, etc. approaching at high speed.
[0010] Furthermore, the electronic mirror displays multiple divided images of the wide rearward area, allowing the driver to quickly and reliably visually confirm both images, making the present invention a great contribution to realizing safe driving when reversing a vehicle. [Brief explanation of the drawings]
[0011] [Figure 1] 1 is a perspective view showing an example of an entire vehicle to which a digital mirror device according to the present invention is attached. [Figure 2]FIG. 10 is a diagram showing an example of an image captured by a rear camera. [Figure 3] FIG. 2 is a front view of one specific example of an electronic mirror showing a state in which a first image and a second image are displayed. [Figure 4] FIG. 10 is a front view of another example of an electronic mirror showing a state in which a first image and a second image are displayed. DETAILED DESCRIPTION OF THE INVENTION
[0012] The present invention will be described in detail below based on the illustrated embodiments. 1 shows an example of a vehicle 30 equipped with an electronic mirror device according to the present invention. Reference numeral 1 denotes a vehicle-mounted rear camera, and this rear camera 1 is attached to the center of the upper edge of the rear of the vehicle 30 on both sides.
[0013] An electronic mirror 10 is disposed diagonally above and in front of the driver's seat inside the vehicle 30. In FIG. 1, a wiring 2 is indicated by a dotted line, and the rear camera 1 and the electronic mirror 10 are connected by the wiring 2.
[0014] 2, a rectangular frame illustrates an image Y captured by the rear camera 1. That is, the image Y captured by the rear camera 1 is composed of a rear wide area W including a rear lower area B and a rear distant area F of the vehicle.
[0015] In this way, the image Y captured by the rear camera 1 is called image G. 10 is displayed on the electronic mirror 10. Moreover, the image of the electronic mirror 10 G 10 is configured to be able to display in a divided manner as a plurality of display sections. "Multiple" can mean two, three, four or more.
[0016] 2 and 3, the left display unit L of the electronic mirror 10 10 and right display R 10 In one of the two screens, an image of the rear lower area B captured by the rear camera 1 is displayed as a first image 11.
[0017] In Figure 3, the right display R 10 1 shows the case where the image of the rear lower area B is displayed. On the other hand, the left display unit L of the electronic mirror 10 10 and right display R 10 On the other of the two screens, an image of the rear distant area F captured by the rear camera 1 is displayed as a second image 12.
[0018] As shown in Figure 3, the left display section L 10 Specifically, the second image 12 omits the portion above the dotted line Lf in Fig. 2 from the rear distant area F captured by the rear camera 1. In this way, unnecessary parts such as the sky and tree tops are omitted from the display. Although not shown, the left and right images in FIG. 3 may be freely swapped.
[0019] Furthermore, the aspect ratios of the images in the lower rear area B and the distant rear area F shown in Fig. 2 may be left unchanged as images 11 and 12 on the electronic mirror 10 shown in Fig. 3, but due to constraints on the shape and dimensions of the electronic mirror 10, it is preferable to convert the aspect ratio for display. (Fig. 3 shows the case where the image is changed to portrait orientation.) In other words, the original image is enlarged or the aspect ratio is adjusted, or other "image adjustments" are made, before it is displayed on the electronic mirror 10.
[0020] Next, another embodiment of the present invention shown in FIGS. 2 and 4 will be described. Left display section L of electronic mirror 10 10 and right display R 10 In one of the two screens, an image of the entire rear lower area B captured by the rear camera 1 is displayed as a first image 11.
[0021] The left display unit L of the electronic mirror 10 10 and right display R 10 On the other of the two screens, an image of a wide rear area W captured by the rear camera 1 is displayed as a second image 12. That is, as can be seen from FIGS. 4 and 2, the entire rear wide area W is displayed as the second image 12 without cutting (removing) the area along the dotted line Lf and without cutting (removing) the rear lower area B either.
[0022] The first image 11 and the second image 12 are displayed on the electronic mirror 10 when it is detected that the shift position of the vehicle has been switched to the reverse position. It is also desirable to have a three- or four-split display (not shown) on the digital mirror 10. In this case, it is possible to display all of the lower rear area B, the distant rear area F, and the wide rear area W in FIG.
[0023] As described above in detail, the present invention includes a vehicle-mounted rear camera 1 that captures a wide rear area W including a lower rear area B and a distant rear area F of a vehicle 30, and a video Y captured by the rear camera 1 that is converted into an image G. 10 The electronic mirror device includes an in-vehicle electronic mirror 10 that displays the rearward wide area W captured by the rear camera 1 as a plurality of images; the electronic mirror 10 is configured to be capable of split display on a plurality of display sections; and the plurality of display sections of the electronic mirror 10 are configured to display the rearward wide area W captured by the rear camera 1 as a plurality of images divided into a plurality of areas. This allows the driver to quickly and reliably visually confirm the multiple images, and the present invention greatly contributes to the realization of safe driving when reversing a vehicle. In particular, there may be children playing in the lower rear area B or objects placed there, and in such cases, moving the vehicle backward can reliably prevent accidents resulting in death or injury or property damage. Moreover, the driver can quickly and reliably check both the lower rear area B and the rearward distant area F simply by looking at the electronic mirror 10.
[0024] The present invention also provides a vehicle-mounted rear camera 1 that captures a wide rear area W including a lower rear area B and a distant rear area F of a vehicle 30, and converts an image Y captured by the rear camera 1 into an image G. 10The electronic mirror device includes an in-vehicle electronic mirror 10 that displays an image as a rearview mirror; the electronic mirror 10 is configured to be capable of split display on multiple display units; and the multiple display units of the electronic mirror 10 are configured to display multiple images split into multiple areas, including the lower rear area B and the distant rear area F, captured by the rear camera 1. This allows the driver to quickly and reliably visually check the multiple images, and the present invention significantly contributes to the realization of safe driving when reversing a vehicle. In particular, there may be children playing in the lower rear area B or objects placed there, and in such cases, moving the vehicle backward can reliably prevent accidents resulting in death or injury or property damage. Moreover, the driver can quickly and reliably check both the lower rear area B and the distant rear area F simply by looking at the electronic mirror 10.
[0025] Furthermore, the multiple images displayed on the electronic mirror 10 are the original images that have been adjusted as necessary by enlarging them, adjusting the aspect ratio, etc., so that when splitting the images on the electronic mirror 10, it is possible to arrange the images in sections and split them in a way that makes them easy and accurate for the driver to see.
[0026] Moreover, since the image is configured to start being displayed on the electronic mirror 10 when it is detected that the shift position of the vehicle has been switched to the reverse position, the image is not displayed on the electronic mirror 10 when the vehicle is not in reverse, and therefore does not interfere with driving. [Explanation of symbols]
[0027] 1 Rear camera 10 Electronic mirror 11 First image 12 Second image 30 vehicles B Posterior lower area F Posterior far area G 10 image L 10 Left display R 10 Right display W Rear wide area Y Video taken with rear camera
Claims
1. A vehicle-mounted rear camera (1) captures a wide area (W) behind a vehicle (30) including a lower rear area (B) and a distant rear area (F), and an image (G) is generated by converting a video (Y) captured by the rear camera (1). 10 and an electronic mirror (10) in a vehicle that displays the vehicle status as The electronic mirror (10) is configured to be capable of displaying information in a divided manner on a plurality of display sections, The plurality of display units of the electronic mirror (10) are configured to display the wide rear area (W) photographed by the rear camera (1) as a plurality of images divided into a plurality of areas, An electronic mirror device for a vehicle.
2. A vehicle-mounted rear camera (1) captures a wide area (W) behind a vehicle (30) including a lower rear area (B) and a distant rear area (F), and an image (G) is generated by converting a video (Y) captured by the rear camera (1). 10 and an electronic mirror (10) in a vehicle that displays the vehicle status as The electronic mirror (10) is configured to be capable of displaying information in a divided manner on a plurality of display sections, The display units of the electronic mirror (10) are configured to display a plurality of images divided into a plurality of areas including the rear lower area (B) and the rear distant area (F) photographed by the rear camera (1), An electronic mirror device for a vehicle.
3. 3. The electronic mirror device for a vehicle according to claim 1, wherein the plurality of images displayed on the electronic mirror (10) are original images that have been subjected to image adjustment such as enlargement and aspect ratio adjustment as required.
4. 4. The electronic mirror device for a vehicle according to claim 1, wherein the electronic mirror (10) starts displaying the image when it is detected that the shift position of the vehicle has been switched to a reverse position.
Citation Information
Patent Citations
Electronic mirror system
JP2017165292A