Rear-view mirror having function of displaying interior image of cargo compartment of commercial vehicle and control method thereof
The rear-view mirror with integrated cargo compartment imaging and processing capabilities addresses the challenge of monitoring cargo security in commercial vehicles, enabling real-time detection and display of cargo conditions alongside rear views for safe operation.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- YURA CORP CO LTD
- Filing Date
- 2025-12-03
- Publication Date
- 2026-07-02
AI Technical Summary
Commercial vehicles with cargo compartments face challenges in monitoring cargo security during operation, as the rear-view mirror is obstructed by the cargo, making it difficult to detect cargo movement or shifting, which can lead to damage.
A rear-view mirror equipped with a camera module for the cargo compartment and a display that integrates a processor to compare interior images, detect cargo movement, and display real-time cargo conditions alongside rear views, adjusting the mirror's reflectance and transmittance to provide simultaneous rear and interior views.
Enables the driver to monitor cargo conditions and rear traffic in real-time, allowing timely intervention to prevent cargo damage and ensure safe operation.
Smart Images
Figure KR2025020604_02072026_PF_FP_ABST
Abstract
Description
Rear-view mirror equipped with a function for displaying an image inside the cargo compartment of a commercial vehicle and a method for controlling the same
[0001] The present invention relates to a rear-view mirror installed in a vehicle and a method for controlling the same, and more specifically, to a rear-view mirror having an image display function inside the cargo compartment of a commercial vehicle and a method for controlling the same.
[0002] Generally, vehicles are equipped with a rear-view mirror inside the vehicle to allow observation of the rear of the vehicle. However, in the case of commercial vehicles, particularly delivery vehicles that have a cargo compartment installed at the rear, the rear of the vehicle cannot be checked through the rear-view mirror because it is blocked by the cargo compartment.
[0003] Furthermore, in the case of commercial vehicles loaded with goods for delivery in the cargo compartment, if the cargo is not properly secured, it may fall off or shift excessively during operation, causing damage to the cargo; this results in the commercial vehicle driver having to compensate for the resulting damages.
[0004] However, as cargo is not properly secured, it is difficult for the driver to perceive the situation where the cargo moves, and currently, no method has been presented to monitor the condition of the cargo.
[0005] The problem that the present invention aims to solve is to provide a rear-view mirror equipped with a cargo compartment interior image display function for a commercial vehicle and a method for controlling the same, which can notify the driver of the situation inside the cargo compartment when cargo loaded in the cargo compartment of the commercial vehicle falls or there is a risk of damage due to cargo moving inside the cargo compartment while the commercial vehicle is in operation.
[0006] A rear-view mirror having a cargo compartment interior image display function according to a preferred embodiment of the present invention for solving the above-mentioned problem comprises: a camera module including a rear camera that photographs the rear of the vehicle and an interior camera that photographs the interior of the cargo compartment; a display that outputs an image; a mirror module installed in front of the display that adjusts reflectance and transmittance according to a control signal; and a circuit unit including a processor and a memory. The processor, which executes a command stored in the memory, operates according to a user's setting in a display mode in which the transmittance of the mirror module is raised above a threshold and a rear image input from the rear camera is displayed through the display, or in a mirror mode in which the display is turned off, the transmittance of the mirror module is lowered below a threshold, and the reflectance is raised above a threshold. The processor then compares interior images input from the interior camera at a certain time interval to determine the movement of the cargo inside the cargo compartment, and if it is determined that the cargo inside the cargo compartment has moved, the interior image is displayed on the display.
[0007] In addition, the processor can divide the display area of the display to display an indoor image in some areas and a rear image in other areas.
[0008] Additionally, the processor can detect a nearby vehicle in the rear image, and when a nearby vehicle is detected, display an interior image in a part of the display and display the area of the rear image containing the nearby vehicle in another part.
[0009] Additionally, when a nearby vehicle is detected on either the left or right side of the rear image, the processor may divide the display into two areas, display the area containing the nearby vehicle of the rear image on the side where the nearby vehicle is detected, and display the interior image in the remaining area.
[0010] Additionally, when a nearby vehicle is detected on the left and right sides of the rear image, the processor may divide the display into three areas, display an interior image in the center display area of the display, and display an area containing a nearby vehicle in the corresponding direction of the rear image in each of the two side areas.
[0011] Additionally, the processor may stop the indoor video output when a display confirmation signal is input from the user or when a predefined time elapses, and may resume operation in the display mode or the mirror mode.
[0012] Additionally, the camera module further includes a left-side camera that captures the left rear of the vehicle and outputs a left-rear image, and a right-side camera that captures the right rear of the vehicle and outputs a right-rear image, and the processor can divide the display area of the display to display an interior image in a part area and display a left-rear image or a right-rear image in another part area.
[0013] Additionally, the processor may detect a nearby vehicle in the left rear image or the right rear image, and when a nearby vehicle is detected, display an interior image in a part of the display and display a left rear image or the right rear image containing the nearby vehicle in another part.
[0014] Additionally, when a nearby vehicle is detected in either the left rear image or the right rear image, the processor may divide the display area of the display into two parts, display the area containing the nearby vehicle in the left rear image or the right rear image where the nearby vehicle was detected, and display the interior image in the remaining area.
[0015] Additionally, when a nearby vehicle is detected in both the left rear image and the right rear image, the processor may divide the display area of the display into three parts, display an interior image in the middle display area of the display, and display an area containing the nearby vehicle in the left rear image and an area containing the nearby vehicle in the right rear image in each of the two side display areas.
[0016] Additionally, the processor may stop the indoor video output when a display confirmation signal is input from the user or when a predefined time elapses, and may resume operation in the display mode or the mirror mode.
[0017] Meanwhile, a rear-view mirror control method having a function for displaying an image inside the cargo compartment of a commercial vehicle according to a preferred embodiment of the present invention for solving the above-mentioned problem comprises: a camera module including a rear camera that photographs the rear of the vehicle and an interior camera that photographs the interior of the cargo compartment; a display that outputs an image; a mirror module installed in front of the display that adjusts reflectance and transmittance according to a control signal; and a circuit unit including a processor and a memory, wherein the method is performed by the processor that executes a command stored in the memory, and comprises: (a) a step in which, according to a user setting, the processor turns on the display and increases the transmittance of the mirror module and decreases the reflectance to operate in a display mode that displays a rear image input from the rear camera through the display, or turns off the display and decreases the transmittance of the mirror module and increases the reflectance to operate in a mirror mode; (b) a step in which the processor detects the movement of cargo inside the cargo compartment by comparing interior images input from the interior camera at a predetermined time interval; and (c) when movement of cargo inside the cargo compartment is detected, the processor displays the interior image on the display.
[0018] Additionally, the above step (c) may include: (c1) detecting a nearby vehicle in the rear image when movement of cargo inside the cargo compartment is detected; (c2) outputting an interior image across the entire display area of the display when no nearby vehicle is detected in the rear image; and (c3) when a nearby vehicle is detected in the rear image, dividing the display area of the display to display an interior image in a part of the area and a rear image in another part of the area.
[0019] Additionally, the camera module further includes a left-side camera that captures the left rear of the vehicle and outputs a left-rear image, and a right-side camera that captures the right rear of the vehicle and outputs a right-rear image, and the step (c) may include: (c1) detecting a nearby vehicle in the rear image when movement of cargo inside the cargo compartment is detected; (c2) outputting an interior image across the entire display area when no nearby vehicle is detected in the rear image; and (c3) when a nearby vehicle is detected in at least one of the left-rear image and the right-rear image, dividing the display area of the display to display an interior image in a part area and displaying the left-rear image or the right-rear image in which the nearby vehicle is detected in another part area.
[0020] A rear-view mirror having a function for displaying an image inside the cargo compartment of a commercial vehicle according to a preferred embodiment of the present invention and a control method thereof utilize a camera that captures the rear of the vehicle and a camera that captures the interior of the cargo compartment of the commercial vehicle to determine the movement of cargo loaded in the cargo compartment. Normally, the image captured of the rear of the vehicle is displayed through a display, and when it is determined that the cargo is moving, an interior image indicating the situation inside the cargo compartment and a rear image are output together through a display, thereby enabling the driver to check the driving situation of another vehicle approaching from the rear of the vehicle and the condition of the cargo inside the cargo compartment in real time. Accordingly, the driver can perceive the driving situation of the vehicle and the movement of the cargo inside the cargo compartment in real time and take appropriate measures accordingly.
[0021] FIGS. 1a and 1b are drawings illustrating the configuration of a rear-view mirror having an internal cargo compartment image display function of a commercial vehicle according to a preferred embodiment of the present invention.
[0022] FIG. 2a is a drawing illustrating the camera installation location and the area displayed on the display according to a preferred first embodiment of the present invention.
[0023] FIG. 2b is a drawing illustrating the camera installation location and the area displayed on the display according to a preferred second embodiment of the present invention.
[0024] FIG. 3 is a flowchart illustrating a control method for a rear-view mirror having an internal cargo compartment image display function of a commercial vehicle according to a preferred embodiment of the present invention.
[0025] FIG. 4 is a drawing illustrating an example in which an interior image of a cargo compartment is displayed on a display according to a preferred embodiment of the present invention.
[0026] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[0027] Hereinafter, the aforementioned objects, features, and advantages of the present invention will become more apparent from the following detailed description in conjunction with the accompanying drawings. However, as the present invention is subject to various modifications and may have various embodiments, specific embodiments are illustrated in the drawings and described in detail below.
[0028] Throughout the specification, identical reference numbers indicate identical components in principle. Additionally, components with identical functions within the scope of the same concept appearing in the drawings of each embodiment are described using the same reference numeral.
[0029] When a part of a specification is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components. Furthermore, terms such as "...part" or "module" as used in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware or software, or as a combination of hardware and software.
[0030] If it is determined that a detailed description of known functions or configurations related to the present invention may unnecessarily obscure the essence of the present invention, such detailed description is omitted. Additionally, numbers used in the description of this specification (e.g., 1st, 2nd, etc.) are merely identification symbols to distinguish one component from another.
[0031] FIGS. 1a and 1b are drawings illustrating the configuration of a rear-view mirror having an internal cargo compartment image display function of a commercial vehicle according to a preferred embodiment of the present invention.
[0032] Referring to FIG. 1a and FIG. 1b, a rear-view mirror (100) (hereinafter abbreviated as 'rear-view mirror') having an internal cargo space image display function of a commercial vehicle according to a preferred embodiment of the present invention includes a camera module (110), a mirror module (140), a display (130), and a circuit unit (120). The circuit unit (120) includes a processor (121), a memory (123), and a communication module (125). The camera module (110) basically includes a rear camera (111) and an interior camera (113), and may further include a left side camera (115), a right side camera (117), and a front camera (119).
[0033] The mirror module (140), display (130), and circuit (120) are included in the rear-view mirror housing (190) and installed near the front windshield of the vehicle interior.
[0034] The rear camera (111) is installed on the exterior rear of the commercial vehicle, captures the rear of the vehicle to generate a rear image, and transmits the rear image to the processor (121). The rear camera (111) may be used to have a shooting angle of 120 degrees or more so that blind spots can be captured. In particular, if the left side camera (115) and the right side camera (117) are not installed, it is preferable that the rear camera (111) be installed as a camera having a field of view of 180 degrees.
[0035] An indoor camera (113) is installed inside the cargo compartment and captures the interior of the cargo compartment and transmits the indoor image to a processor (121). The indoor camera (113) may be implemented as an infrared camera so that cargo can be identified in a dark environment.
[0036] The left side camera (115) is installed on the left side of the vehicle to photograph the rear of the left side of the vehicle to generate a left rear image and outputs the left rear image to the processor (121). Additionally, the right side camera (117) is installed on the right side of the vehicle to photograph the rear of the right side of the vehicle to generate a right rear image and outputs it to the processor (121). In a preferred embodiment of the present invention, the left side camera (115) and the right side camera (117) are each installed on the left and right side mirrors, but the installation positions can be changed.
[0037] The front camera (119) can transmit a front image of the vehicle in operation to a processor (121), and the processor (121) can store the front image in a memory (123), thereby enabling the rear-view mirror of the present invention to be implemented by integrating it with a vehicle black box.
[0038] FIG. 2a is a drawing illustrating a camera installation location and an area displayed on a display according to a preferred first embodiment of the present invention, and FIG. 2b is a drawing illustrating a camera installation location and an area displayed on a display according to a preferred second embodiment of the present invention.
[0039] First, referring to FIG. 2a, a rear-view mirror according to a preferred first embodiment of the present invention includes an interior camera and a rear camera, and additionally includes a front camera as needed, while a left side camera (115) and a right side camera (117) are omitted.
[0040] The rear camera (111) is installed at the rear of the vehicle to photograph the rear of the vehicle and is installed as a camera having a field of view of 120 to 180 degrees. The interior camera (113) is installed at the center of the ceiling of the cargo compartment or at the center of the front of the cargo compartment to photograph the entire cargo compartment. The front camera (119) is installed on the front windshield of the vehicle so as to face the front of the vehicle. In addition, when the display area of the display (130) is divided into three parts, the area of the display (130) corresponding to the field of view of the rear camera (111) is as shown in FIG. 2a.
[0041] Next, referring to FIG. 2b, a rear-view mirror according to a preferred second embodiment of the present invention includes an interior camera (113), a rear camera (111), a left side camera (115), and a right side camera (117), and additionally includes a front camera (119) as needed.
[0042] The rear camera (111) is installed at the rear of the vehicle to photograph the rear of the vehicle, and a camera with a field of view of about 120 degrees is installed as the rear camera (111). The interior camera (113) is installed at the center of the ceiling of the cargo compartment or at the center of the front of the cargo compartment to photograph the entire cargo compartment.
[0043] The left side camera (115) is installed together with the left side mirror, and the right side camera (117) is installed together with the right side mirror to photograph the left rear and right rear respectively, generate left rear images and right rear images, and transmit them to the processor (121). The front camera (119) is installed on the front windshield of the vehicle so as to face the front of the vehicle.
[0044] Additionally, when the display area of the display (130) is divided into three parts, the area where the left rear image, rear image, and right rear image are displayed is as shown in FIG. 2b.
[0045] Referring again to FIGS. 1a and FIGS. 1b, the display (130) can be implemented as an LCD module, an OLED module, etc., and is turned on / off according to the control of the processor (121), and outputs an image signal generated by the processor (121).
[0046] The mirror module (140) contains an EC (Electronic Chromic) film inside and is positioned in front of the display (130). Under the control of the processor (121), the reflectivity and transmittance of the EC film contained in the mirror module (140) are adjusted, and accordingly, the mirror module (140) performs the role of a reflector or transmits an image displayed on the display (130) so that the driver and passengers can see the image on the display (130).
[0047] The memory (123) is implemented as an SSD (Solid State Drive), flash memory, ROM (Read-Only Memory), RAM (Random Access Memory), etc., and stores instructions to be executed by the processor (121) and data processed by the processor (121). In addition, the memory (123) can store interior video, rear video, left rear video, right rear video, and front driving video.
[0048] The processor (121) can be implemented as a CPU (Central Processing Unit) or a similar device (e.g., MPU (Micro Processing Unit), MCU (Micro Control Unit), etc.) and controls the display (130) and mirror module (140) by executing instructions stored in memory (123), processes the rear image, left rear image, right rear image, and interior image to generate an image to be output to the display (130), and outputs the generated image through the display (130). Additionally, as described below, the processor (121) can detect the movement of a cargo from the interior image and detect an approaching vehicle from the rear image or the left rear image and right rear image.
[0049] The communication module (125) communicates with the vehicle's main controller (200) to receive information related to vehicle control from the vehicle's main controller (200) and output it to the processor (121), and can request that an alarm be output using a speaker installed in the vehicle.
[0050] FIG. 3 is a flowchart illustrating a control method for a rear-view mirror having an internal cargo space image display function of a commercial vehicle according to a preferred first embodiment of the present invention.
[0051] With further reference to FIG. 3, the detailed functions of a rear-view mirror equipped with an image display function inside the cargo compartment of a commercial vehicle according to a preferred embodiment of the present invention and the control method thereof will be explained in more detail.
[0052] A preferred first embodiment of the present invention is operated using an indoor camera (113) and a rear camera (111), as described above.
[0053] First, when the vehicle is driven and power is supplied to the rear-view mirror, the processor (121) operates the rear-view mirror in display mode or mirror mode according to the user's settings (S310).
[0054] When operating in mirror mode, the processor (121) turns off the display (130), lowers the transmittance of the mirror module (140) below a threshold value, and increases the reflectivity so that the rear view is reflected and shown to the driver.
[0055] When operating in display mode, the processor (121) increases the transmittance of the mirror module (140) above a threshold value and lowers the reflectance, turns on the display (130), and displays the rear image through the display (130).
[0056] After that, the processor (121) detects whether the cargo loaded in the cargo compartment moves while the vehicle is in operation (S320). At this time, the processor (121) receives the vehicle's transmission setting information from the vehicle main controller (200), checks whether the vehicle is currently in operation, and can detect whether the cargo moves while the vehicle is in operation.
[0057] In a preferred embodiment of the present invention, the processor (121) can detect the movement of the load in various ways. As the simplest example, the processor (121) detects the movement of the load by comparing indoor images input from the indoor camera (113) at a certain time interval. When the load is stably fixed and does not move during operation, the indoor images compared at a certain time interval are substantially the same, and in this case, the pixel values of the indoor images before and after the certain time interval are identical or the difference is negligible.
[0058] However, when a cargo falls or the position of the cargo moves significantly while the vehicle is in operation, the difference in parcel values between indoor images compared at a certain time interval exceeds a threshold value. In this case, the processor (121) determines that the cargo has moved.
[0059] When movement of cargo inside the cargo compartment is detected, the processor (121) applies an object recognition algorithm to the rear image input from the rear camera (111) to detect a vehicle approaching from the rear (S330). At this time, the processor (121) can detect vehicles approaching from both side lanes by applying the object recognition algorithm to the areas corresponding to the rear left lane and the right rear lane in the rear image.
[0060] If no nearby vehicle is detected in the rear view, the processor (121) outputs an interior view across the entire display area of the display (130) (S340).
[0061] FIG. 4 is a diagram illustrating an example in which an interior image of a cargo compartment is displayed on a display according to a preferred embodiment of the present invention. Referring to FIG. 4 (a), when no nearby vehicle is detected, an interior image (410) of the cargo compartment is displayed over the entire display area.
[0062] Meanwhile, when a nearby vehicle is detected in the rear view, the processor (121) divides the display area of the display (130), outputs an interior image to some of the divided areas, and outputs the area of the rear view where the nearby vehicle was detected to the remaining area (S350).
[0063] Referring further to FIG. 4, when a nearby vehicle is detected in only one of the left or right lanes in the rear view, the processor (121) divides the display area of the display (130) into two, displays an interior view of the cargo compartment in one area (411), and displays the area in the rear view where the nearby vehicle was detected in the remaining area (412) (see FIG. 4 (b)).
[0064] If a nearby vehicle is detected in both the left and right lanes in the rear view, the processor (121) divides the display area of the display (130) into three parts, displays the interior view of the cargo compartment in the middle area (413), and displays the left and right areas of the rear view where the nearby vehicle was detected in the remaining two side areas (414, 415), respectively (see (c) of FIG. 4).
[0065] Additionally, in step S350, the processor (121) can notify the driver that there is movement of cargo inside the cargo compartment by displaying a specific color around the display area of the display (130) or by outputting an alarm through a speaker included inside or a speaker of the vehicle.
[0066] Meanwhile, the indoor image displayed on the display (130) is maintained for a certain period of time, and when the driver presses a predetermined button (not shown) to input a confirmation signal or a predefined display time (e.g., about 10 seconds) elapses, the display mode is switched to mirror mode or display mode in the same way as step S310 and is performed again from step S310 (S360).
[0067] Meanwhile, the control method of a rear-view mirror having an internal cargo space image display function of a commercial vehicle according to a preferred second embodiment of the present invention differs from the first embodiment in that it further includes a left side camera (115) and a right side camera (117).
[0068] Specifically, in step S330 illustrated in FIG. 3, the processor (121) detects a vehicle approaching from the rear of the left lane and a vehicle approaching from the rear of the right lane, respectively, in the left rear image input from the left side camera (115) and the right rear image input from the right side camera (117).
[0069] And, in step S350, if a nearby vehicle is detected in either of the two lanes, the display area in the direction where the nearby vehicle was detected is divided to display an image of the nearby vehicle as shown in Fig. 4 (b), and if a nearby vehicle is detected in both sides, the display area of the display (130) is divided into three parts, so that a left rear view image is displayed in the left area, a right rear view image is displayed in the right area, and an interior image is displayed in the middle area.
[0070] The control method for a rear-view mirror having an internal cargo space image display function of a commercial vehicle according to the preferred embodiment of the present invention described so far can be implemented as a computer program that is executed as a computer-executable instruction and stored in a non-transient storage medium.
[0071] Storage media include all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable storage media include ROM, RAM, CD-ROM, and optical data storage devices. Additionally, computer-readable storage media are distributed across networked computer systems, allowing computer-readable code to be stored and executed in a distributed manner.
[0072] The present invention has been described above with reference to its preferred embodiments. Those skilled in the art will understand that the present invention may be embodied in modified forms without departing from the essential characteristics of the invention. Therefore, the disclosed embodiments should be considered in an illustrative rather than a restrictive sense. The scope of the invention is defined by the claims, not by the foregoing description, and all variations within the scope of the claims should be interpreted as being included in the invention.
Claims
1. A camera module including a rear camera for filming the rear of the vehicle and an interior camera for filming the interior of the cargo compartment; A display that outputs an image; A mirror module installed in front of the above display and adjusting reflectivity and transmittance according to a control signal; and It includes a circuit section including a processor and memory, and The processor that executed the instruction stored in the memory above Depending on the user's settings, the system operates in a display mode in which the transmittance of the mirror module is increased above a threshold and a rear image input from the rear camera is displayed through the display, or in a mirror mode in which the display is turned off, the transmittance of the mirror module is lowered below a threshold, and the reflectance is increased above a threshold. A rear-view mirror having a cargo compartment interior image display function of a commercial vehicle, characterized by comparing interior images input from the interior camera at a set time interval to determine the movement of cargo inside the cargo compartment, and displaying the interior image on the display when it is determined that the cargo inside the cargo compartment has moved.
2. In claim 1, the processor A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by dividing the display area of the above-mentioned display to display an interior image in a part area and a rear image in another part area.
3. In claim 2, the processor Detecting nearby vehicles in the above rear image, and A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by displaying an interior image in a part of the display and displaying a rear image containing the nearby vehicle in another part when a nearby vehicle is detected.
4. In claim 3, the processor If a nearby vehicle is detected on either the left or right side of the above rear image, A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by dividing the above display into two areas, displaying an area containing a nearby vehicle in the rear image on the side where a nearby vehicle is detected, and displaying an interior image in the remaining area.
5. In Paragraph 4, The above processor A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by stopping the interior image output when a display confirmation signal is input from a user or when a predefined time elapses, and operating again in the display mode or the mirror mode.
6. In claim 3, the processor If a nearby vehicle is detected on the left and right sides of the above rear image, The above display is divided into three areas, and A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by displaying an interior image in the center display area of the above-mentioned display and displaying an area containing a nearby vehicle in the direction corresponding to the rear image in each of the two side areas.
7. In Paragraph 6, The above processor A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by stopping the interior image output when a display confirmation signal is input from a user or when a predefined time elapses, and operating again in the display mode or the mirror mode.
8. In Paragraph 1, The above camera module further includes a left side camera that captures the left rear of the vehicle and outputs a left rear image, and a right side camera that captures the right rear of the vehicle and outputs a right rear image. The above processor A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by dividing the display area of the above-mentioned display to display an interior image in a part area and a left rear image or a right rear image in another part area.
9. In claim 8, the processor Detecting a nearby vehicle in the above left rear image or right rear image, and A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by displaying an interior image in a part of the display and displaying a left rear image or a right rear image containing the nearby vehicle in another part when a nearby vehicle is detected.
10. In claim 9, the processor If a nearby vehicle is detected in either the left rear image or the right rear image above, A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by dividing the display area of the above display into two, displaying the area containing the nearby vehicle in the left rear image or right rear image where the nearby vehicle is detected, and displaying the interior image in the remaining area.
11. In Paragraph 10, The above processor A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by stopping the interior image output when a display confirmation signal is input from a user or when a predefined time elapses, and operating again in the display mode or the mirror mode.
12. In claim 9, the processor If a nearby vehicle is detected in both the left rear image and the right rear image above, The display area of the above display is divided into three parts, and A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by displaying an interior image in the center display area of the above display, and displaying an area containing a nearby vehicle in the left rear image and an area containing a nearby vehicle in the right rear image in each of the two side display areas.
13. In Paragraph 12, The above processor A rear-view mirror having a cargo compartment interior image display function for a commercial vehicle, characterized by stopping the interior image output when a display confirmation signal is input from a user or when a predefined time elapses, and operating again in the display mode or the mirror mode.
14. A camera module including a rear camera for photographing the rear of the vehicle and an interior camera for photographing the interior of the cargo compartment; A display that outputs an image; A mirror module installed in front of the above display and adjusting reflectivity and transmittance according to a control signal; and It includes a circuit section including a processor and memory, and A method for displaying an image of the interior of a commercial vehicle's cargo compartment, performed by the processor that executes the instruction stored in the memory above, (a) Depending on the user's settings, the processor turns on the display and increases the transmittance of the mirror module and decreases the reflectance to operate in a display mode that displays a rear image input from the rear camera through the display, or turns off the display and decreases the transmittance of the mirror module and increases the reflectance to operate in a mirror mode; (b) a step in which the processor detects the movement of cargo inside the cargo compartment by comparing indoor images input from the indoor camera at a constant time interval; and (c) A rear-view mirror control method having a cargo compartment interior image display function of a commercial vehicle, characterized by including the step of the processor displaying the interior image on the display when movement of the cargo inside the cargo compartment is detected.
15. In claim 14, the above step (c) (c1) A step of detecting a nearby vehicle in the rear view when movement of the cargo inside the cargo compartment is detected; (c2) If no nearby vehicle is detected in the rear image, outputting an interior image across the entire display area of the display; and (c3) A rear-view mirror control method having a cargo compartment interior image display function of a commercial vehicle, characterized by including the step of dividing the display area of the display when a nearby vehicle is detected in the rear image, displaying an interior image in a part area and a rear image in another part area.
16. In Paragraph 14, The above camera module further includes a left side camera that captures the left rear of the vehicle and outputs a left rear image, and a right side camera that captures the right rear of the vehicle and outputs a right rear image. The above (c) step (c1) A step of detecting a nearby vehicle in the rear view when movement of the cargo inside the cargo compartment is detected; (c2) If no nearby vehicle is detected in the rear image, outputting an interior image across the entire display area; and (c3) A rear-view mirror control method having a cargo compartment interior image display function of a commercial vehicle, characterized by including the step of, when a nearby vehicle is detected in at least one of the left rear image and the right rear image, dividing the display area of the display to display an interior image in a part area and displaying the left rear image or the right rear image in which the nearby vehicle is detected in another part area.