TWI677242B - A video surveillance system of transport vehicle with monitored image optimization - Google Patents

Abstract

The invention discloses a monitoring system for a transportation vehicle with an optimized monitoring image, which is suitable for a large transportation vehicle. The monitoring system includes: X camera devices and a monitoring host, which are installed at different positions of the vehicle body to record X respectively. Images of the monitored end, so that a display device can display Y video data; the monitoring host is electrically connected to the display device and the X photographing devices, and the monitoring host performs a video screen conversion in response to a change event trigger A program to switch the display device between a first video picture and a second video picture, where the first video picture is a Y-split sub-picture or a full-screen display picture, and the second video picture is The Y divided sub-pictures may be a full-screen display picture; wherein Y is 6 and Y is less than or equal to X, and the first video picture is different from the second video picture. In this way, the specific number of sub-screens and the special arrangement are arranged on the monitor screen of limited size, so that the driver can clearly observe the various real-time conditions displayed in the split screen to improve the overall driving safety.

Description

Monitoring system for transportation vehicle with optimized surveillance image

The present invention relates to an image processing technology for a vehicle monitor, and in particular, to an optimization processing for monitoring screen segmentation of a monitoring system applied to a large transportation vehicle, such as a large-scale transportation vehicle such as a tank truck, truck, truck, or gravel vehicle Monitoring system.

In recent years, large-scale transportation vehicles such as tank trucks and gravel vehicles frequently fail to observe the visual dead end of a person at a certain position of the vehicle body, which has led to the frequent death of rolling deaths. The cameras are mostly installed on the front and rear sides of the car body, focusing on the warning when reversing. The cameras are not installed on the left and right sides of the car body, and the camera lens cannot adjust the angle, but it is prone to collision accidents. Situations usually occur during travel. Many of them are due to the design of the car body, resulting in dead corners on one side. In the past, when driving on the road, some ravines or dead corners on the side of the road were not easy to see. It is impossible to know the distance between the two cars. Traffic is often caused by invisible distance. When reversing, the blind spot in front of the right is often the cause of the collision. If it is dark, the image becomes quite Ambiguity, at this time, the safety of reversing is reduced, which increases the possibility of collision during parking.

On the other hand, even if the car body is equipped with a camera at various positions where visual dead angles may occur, the image area shot by the cameras can be displayed on the monitor screen, but the current configuration is used in the car. Most of the display screens used for monitoring in the body are between 7 and 9 inches. Because of the configuration of multiple cameras, they are used in multiple cutting screens of the monitoring screen. The monitoring screens are mostly 9-division cutting screens. In a small state, it is divided into so many cut screens, which causes the display area of each cut screen and the driver can clearly observe that the real-time image in the shooting area is not clear enough. When the sky is dark, the image becomes more Vagueness causes accidents, so there are still many unsatisfactory aspects of conventional technology, which need to be improved.

In view of this, the inventor is responsible for this. In view of the shortcomings in the conventional technology, the inventor finally devised the present invention to overcome the above problems after careful experiments and research, and a spirit of perseverance.

In order to solve the shortcomings of the conventional technology, an object of the present invention is to provide a monitoring system for a transportation vehicle with an optimized surveillance image. Through the configuration and arrangement of 6 divided sub-screens, the driver can select and switch between different arrangements and display. Split screen, and can clearly observe the various real-time conditions displayed in the split screen to improve the safety of overall driving; further, based on the interpretation of the number of video materials formed by one or more triggered photographing devices, and further Different video picture conversion procedures are performed so that the display device displays different video pictures respectively, and the user can easily and comprehensively grasp the video pictures transmitted by a plurality of different triggered photography devices through the display device in real time.

According to the main purpose of the present invention, the present invention provides a monitoring system for a transportation vehicle with optimized monitoring images, which is suitable for large-scale transportation vehicles. The monitoring system includes: X camera devices and a monitoring host, which are installed on different bodies of the vehicle. Position to record X monitored end images separately, so that a display device generates Y video data displays; the monitoring host is electrically connected to the display device and the X camera devices, and the monitoring host responds to a change event Trigger a video frame conversion program to switch the display device between a first video frame and a second video frame. The first video frame is Y Two split screens or a full-screen display screen, the second video screen is Y split screens or a full-screen display screen; the X photographing devices are respectively installed at the front end and the front of the vehicle body The rear-view mirrors on both sides, the rear of the car, and the sides of the rear of the car, the lenses of each of the photographic devices correspond to the blind spots of a driver's vision; the display device is a screen size of 7 to 10 inches and 4: 3, 16: 9 or 16:10 screen display; the change event trigger at least includes the vehicle body changing from a moving state to a stationary state and a moving direction of the vehicle body. The monitoring host responds to the movement of the vehicle body by a moving The video picture conversion procedure triggered by the change event triggered by a change of state to a stationary state causes the display device to be transformed from the full-screen display picture to Y pieces of the divided sub-pictures, and the monitoring host changes in response to a movement direction of the vehicle body The video picture conversion process triggered by the change event causes the display device to be converted from Y divided sub-pictures to the full-screen display picture; Y is 6 and Y is less than or equal to X, and the first Video picture is not identical with the second video picture.

According to an embodiment of the present invention, the configuration of the six divided sub-pictures is a mixed-size split video picture, which includes a main divided sub-picture that occupies an area of a first picture area; and five sub-divided sub-pictures. Each of the divided sub-pictures respectively occupies an area of a second picture area, and the area of the first picture area is larger than the area of the second picture area.

According to an embodiment of the present invention, a ratio between an area of the first picture area and an area of the second picture area is 4: 1.

According to an embodiment of the present invention, the main divided sub-screen is configured at an upper left position, a lower left position, an upper right position, or a lower right position of the screen of the display device.

According to an embodiment of the present invention, the arrangement of the six divided sub-pictures is an equally divided video picture and each has a third picture area area, and each of the divided sub-pictures occupies the third in the screen of the display device. The screen area area is the same as each other.

According to an embodiment of the present invention, the monitoring host includes an analog / digital converter, a An image processor, a digital / analog converter, a microcontroller, and a memory module; the analog / digital converter is electrically connected to the X camera devices, and is used for shooting the X camera devices separately The analog voltage signals formed by the images of the X monitored ends are converted into Y video data in digital format; the image processor is electrically connected to the analog / digital converter to receive the output from the analog / digital converter Y video data in digital format, and output the Y video data after the first video picture conversion program or the second video picture conversion program; the digital / analog converter is electrically connected to the image processor and The display device is used to convert the Y video data of the first video frame conversion program or the second video frame conversion program through the image processor from a digital format to an analog format; the microcontroller is electrically connected The number of X video devices and the image processor in a timing interval corresponding to the number of Y video data formed by each camera device is less than or greater than a limit value, and Control the image processor to perform the first video frame conversion program or the second video frame conversion program, so that the display device converts between the first video frame and the second video frame; the memory module is It is electrically connected to the analog / digital converter and the image processor for storing the video data.

According to an embodiment of the present invention, the change event trigger is to perform a first video picture conversion program or a second video picture conversion program for the monitoring host to receive a picture switching control signal, and then control the display device to display the first A video picture or the second video picture.

According to an embodiment of the present invention, the change event trigger is for the monitoring host to receive a flash signal change from an electronic control unit (ECU) to perform a first video frame conversion program or a second video frame conversion program, and then control The display device displays the first video picture or the second video picture.

According to an embodiment of the present invention, the change event trigger is to start timing when the X camera devices are triggered by the image change events generated by the X monitored ends respectively. The first video picture conversion program should be performed when the number of Y video materials formed by X photographing devices is less than the limit value, and then the display device is controlled to display the first video picture. The number of video materials is greater than the limit value to perform the second video picture conversion program, and then control the display device to display the second video picture.

According to an embodiment of the present invention, each of the X photographing devices has a sensor for sensing the image change event generated by the X monitored ends.

According to an embodiment of the present invention, wherein the microcontroller is in the timing interval and the X monitoring devices are not triggered because the X monitored terminals do not generate the image change event, the microcontroller controls the display device. The Y image frames displayed above perform a clear image frame procedure, and the microcontroller stops the timing of the timing interval.

This "Invention" introduces some selected concepts in a simplified form, which will be further described in the "Embodiment" below. This Summary of the Invention is not intended to identify key features or basic features of the subject matter of patent application, nor is it intended to be used to limit the scope of the subject matter of patent application.

10‧‧‧Image surveillance device

101,102,103,104, .. n‧‧‧camera

11‧‧‧ monitoring host

12‧‧‧ display device

40‧‧‧ display device

410‧‧‧Split main screen

421,422,423,424,425 ‧‧‧ divided sub-screens

431,432,433,434,435,436 ‧‧‧split

440‧‧‧Full screen display

50‧‧‧ monitoring system

51‧‧‧Photographic installation

52‧‧‧ monitoring host

521‧‧‧ Analog / Digital Converter

522‧‧‧Image Processor

523‧‧‧ Digital / Analog Converter

524‧‧‧Microcontroller

525‧‧‧Memory Module

A1‧‧‧ Area of the first picture area

A2‧‧‧ Area of the second screen area

A3‧‧‧ third screen area

FIGS. 1-2 are schematic diagrams showing the configuration of a photographing device in which the monitoring system of the present invention is applied to a large transport vehicle.

FIG. 3 is a block diagram illustrating a system architecture of the monitoring system of the present invention.

4a-4b are application schematic diagrams respectively showing a screen switching setting screen displayed on a display device of the present invention.

5 (a) -5 (d) are diagrams showing the arrangement and arrangement of various embodiments of the mixed-size split video screen of the present invention.

FIGS. 6 (a) -6 (b) are diagrams showing the arrangement and arrangement of various embodiments of the equally divided video screen of the present invention.

FIG. 7 is a schematic diagram illustrating a full screen display of the present invention.

Please refer to FIG. 1 and FIG. 2. Before describing the monitoring system of the transportation vehicle with the optimized surveillance image disclosed by the present invention, the functional block diagram of the image photographing device applied to the large transportation vehicle is described first. It can be clearly seen from the figure that the transportation vehicle is a large transportation vehicle, such as a large transportation vehicle such as a tank truck, a truck, a large truck, or a gravel vehicle. The image monitoring device 10 is mainly erected on Multiple cameras 101, 102, 103, 104 ..., n, a The monitoring host 11 and at least one display device 12 are structured, and the cameras 101, 102, 103, 104 ..., n erected at different locations transmit the captured n image signals to the monitoring host 11, The monitoring host 11 processes the video signals from different cameras 101, 102, 103, 104 ..., n to form video data, and then the monitoring host 11 sends these video data to the monitoring screen. Play in 12. In order to be able to simultaneously view the video images transmitted by the cameras 101, 102, 103, 104 ..., n installed at different locations on the monitoring screen 12, the monitoring host 11 will process the cameras installed at different locations. After the video data formed by the video signals from the cameras 101, 102, 103, 104 ..., n are synthesized, a plurality of divided video images can be formed on the monitoring screen 12. In this way, through The divided video images output from the monitoring screen 12 can be used to view the video images captured by the cameras 101, 102, 103, 104, ..., n installed at different locations at the same time.

On the other hand, in order to be able to more clearly grasp the real-time conditions or emergencies in each monitoring area during driving, today's image monitoring systems will cooperate with the technology of Spot Monitor to improve the monitoring function. From the figure, we can clearly see that the difference from the image monitoring device 10 shown in Figure 1 is that it is equipped with an abnormal condition warning screen output (Spot The image photography device based on monitor technology is to add motion sensors (not shown) to multiple cameras mounted at different monitoring positions on the vehicle body. When these cameras are shooting, if there is a foreign object Or when a person enters the sensing range of a motion sensor on one of the cameras, the monitoring host will be triggered to switch the video image captured by this camera to another monitoring screen or the original monitoring screen. The video image is zoomed in and played. In this way, the user can watch the video image generated by the emergency situation in order to more clearly monitor the place where the abnormal condition occurs.

Please refer to FIG. 3, which is a block diagram of the system architecture of the monitoring system of the present invention. The invention discloses a monitoring system for a transportation vehicle with an optimized monitoring image. The entire architecture of the monitoring system installed on the transportation vehicle is described in advance. The monitoring system is installed on the transportation vehicle 30 and is applied to X monitored terminals. And a display device 40 and including: X camera devices 51 and a monitoring host 52, the X camera devices 51 respectively capture Y video images to form Y video data, and respond to X Triggered by an image change event generated by the monitored end, so that the Y video data is displayed on the display device 40 in a video screen, where X is a positive integer greater than 1 and is between 2 and 8, and Y is less than or equal to X; the monitoring host 52 is electrically connected to the display device 40 and the X camera devices 51, which is triggered when the X camera devices 51 are respectively triggered by the image change events generated by the X monitored terminals. When the timer is started, the monitoring host 52 performs a video screen conversion program in response to a change event trigger. The video screen conversion program can be divided into a first video screen conversion program and a second video screen conversion program. It will be described in detail below.

According to an embodiment of the present invention, the display device 40 is a display with a touch function and a screen size of about 6 to 12 inches and a screen display screen of 4: 3, 16: 9, or 16:10, and The display screen resolution may be 480P, 720P, or 1080P, which is not limited here. The monitoring host 52 may be installed with software for image monitoring and may display various related operations and settings of the software on the display device 40. About This software is not the main technical feature of the present invention, so it will not be repeated here.

According to an embodiment of the present invention, the change event trigger is performed by the monitoring host 52 to perform a first video picture conversion program or a second video picture conversion program for the monitor host 52 to receive a picture switching control signal, and then control the display device 40 to display. A first video frame or a second video frame; further, the frame switching control signal may be generated by a user performing a frame switching setting option in the software on a display device 40 having a touch function Event triggered.

According to an embodiment of the present invention, the change event trigger includes at least the vehicle body changing from a moving state to a stationary state and a moving direction of the vehicle body. The monitoring host responds to the vehicle body changing from a moving state to a The video frame conversion procedure triggered by the change event in the static state causes the display device to be converted from the full-screen display frame to Y sub-frames. The monitoring host responds to the change event when the vehicle body changes its direction of movement. The triggering of the video frame conversion program causes the display device to convert from the Y divided sub-frames to the full-screen display frame.

According to an embodiment of the present invention, the trigger of the change event may be a flash signal change of a vehicle body; in detail, the monitoring host 52 receives a flash signal ON / OFF from an electronic control unit (ECU) of the vehicle body ( (E.g., reversing lights, left / right direction lights), and obtain the flash position of the flash signal to read the photographing device 51 corresponding to the monitored end, and perform the first video frame conversion program or the second video frame conversion program , And further control the display device 40 to display the first video screen or the second video screen; further explain that when the vehicle body is reversing, or when the left / right direction signal is switched, the corresponding vehicle lights will start to flash, linking electronics The monitoring host 52 of the control unit (ECU) will receive the flash signal from where it is located, and determine which monitoring picture of the monitoring device 51 is being read and perform the video picture conversion procedure; for example, if the original It is in the state of multi-segment monitoring screen. When the driver reverses and the reverse flash flashes (flash signal ON), this occurs. Triggered by a change of event, the monitoring host 52 will control the divided sub-screen of the monitored end of the camera 51 installed behind the vehicle body to perform an image scaling process to zoom the video divided screen into a full-screen display screen. Allows the driver to clearly observe the situation behind the car body, and when the car body stops When the reversing flash is no longer flashing (flash signal is OFF), the monitoring host 52 will perform image scaling processing to convert the full-screen display screen into the original multi-division monitoring screen.

According to an embodiment of the present invention, the change event trigger is that the monitoring host 52 starts timing in response to the image change events generated by X camera devices 51 respectively by X monitored ends, and responds to X within a timing interval. The number Y of Y video materials formed by each photographing device is less than a limited value, and a first video picture conversion program is performed, and then the display device 40 is controlled to display a first video picture. A second video frame conversion process is performed when the number of video data is greater than the limit value, and then the display device is controlled to display a second video frame.

The monitoring host 52 includes an analog / digital converter 521, an image processor 522, a digital / analog converter 523, a microcontroller 524, and a memory module 525. The analog / digital converter 521 is electrical Connected to the X camera devices, used to convert the X camera devices to the analog voltage signals formed by the images of the X monitored ends into Y video data in digital format; the image processor 522 is electrical Connected to the analog / digital converter 521, for receiving Y video data in digital format output by the analog / digital converter 521, and performing the first video frame conversion program or the second video on the Y video data The image conversion program is output after the digital / analog converter 523 is electrically connected to the image processor 522 and the display device 40. The digital / analog converter 523 is to perform the first video image conversion program or the first video image conversion program via the image processor 522. The Y video data of the two video image conversion programs are converted from digital format to analog format for output to the display device 40 for display; the microcontroller 524 is electrically connected to the X photographic devices And the image processor 522 are used to control the image processor 522 to perform the first video frame conversion procedure in response to the fact that the number of Y video materials formed by the X camera devices is less than or greater than the limit value in the timing interval. Or the second video picture conversion program, so that the display device 40 converts between the first video picture and the second video picture; the memory module 525 is electrically connected to the analog / digital converter 521 And the image processor 522 for storing the video data.

As described above, the first video frame conversion program or the first video frame conversion program performed by the image processor 522 The second video frame conversion program is to perform an image scaling process, an image segmentation process, or an image color process.

According to an embodiment of the present invention, the first video frame conversion program or the second video frame conversion program is to synthesize the Y video data formed by the X photographing devices 51 into a mixed size video frame, and the display device 40 The displayed first video picture or the second video picture is a mixed-size split video picture.

As mentioned above, the mixed size split video picture includes a large split video picture and a plurality of equal small split video pictures, where the large split video picture and a plurality of equal small split video pictures are combined. Is equal to Y.

According to an embodiment of the present invention, the first video frame conversion program or the second video frame conversion program is to perform an evenly divided video frame composition process on the Y video materials formed by the X photographing devices 51, and the display device 40 The displayed first video picture or the second video picture is a Y-partitioned video picture.

As mentioned above, the equally divided video frames are a plurality of divided video frames having the same display area area, and the total number of video frames of the plurality of equally divided video frames is equal to Y.

According to an embodiment of the present invention, the first video frame conversion program or the second video frame conversion program performs an image scaling process on the Y video materials formed by the X photographing devices 51, and the display device 40 displays The first video frame or the second video frame is a full-screen video frame.

According to an embodiment of the present invention, wherein the microcontroller 524 is in the timing interval and the X camera devices have not been triggered because the X monitored terminals have not generated the image change event, the microcontroller 524 responds to the The Y video frames displayed on the display device 40 perform a clear video frame action, and the microcontroller stops the timing of the timing interval.

According to an embodiment of the present invention, each of the X photographing devices 51 has a sensor. (Not shown), for sensing the image change event generated by the N monitored ends, and the sensor may be a motion sensor, an infrared sensor, or an ultrasonic sensor .

In the following, various implementation modes are described in detail for the monitoring system with optimized monitoring images according to the present invention. If the change event trigger is the monitoring host 52 receives the screen switching control signal and performs the first video screen conversion program, Or for the case of the second video picture conversion program, please refer to FIGS. 4a-4b, which respectively show the setting pictures of the monitoring image software presented by the monitoring system of the present invention on the display device.

Please refer to Figs. 5 (a) -5 (d) and Figs. 6-7 for the implementation of the video screen display for drawing the optimal surveillance image of the present invention. It is assumed that six are installed on the transport vehicle. The photographing device 51 explains that when the user performs the screen switching setting option in the software on the display device 40 having a touch function, the change event trigger is triggered, and then the microcontroller 524 will trigger the video formed by the photographing device 40 The data is converted into digital format video data by the analog / digital converter 521, the video image conversion process is performed on the video data through the image processor 522, and the digital format video data is finally converted by the digital / analog converter 523 The analog format is output to the display device 40 to display a video screen. At this time, the first embodiment of the present invention is that the screen displayed on the display device 40 is a mixed split video screen with a size as shown in FIG. 5 (a) and the number of splits is 6, which includes: 1 main The divided sub-picture 410 and five sub-split sub-pictures (421,422,423,424,425), the main divided sub-picture 410 occupies a first picture area A1; each of the sub-split sub-pictures (421,422,423,424,425) occupies an area of a second picture area A2, The area of the first picture area A1 is larger than the area of the second picture area A2, and the area of the first picture area occupied by the main divided sub-picture 410 plus the area of the second picture area occupied by all five divided sub-pictures The sum is equivalent to the full screen display area of the display device 40.

As mentioned above, the area between the first picture area A1 and the second picture area A2 The ratio is 4: 1. To further explain, the ratio between the first screen area A1 and the second screen area A2 is calculated by dividing the full screen display area of the display device 40 into 9 equal parts, where the first The screen area A1 occupies 4/9 of the full screen display area, and the second screen area A2 occupies 1/9 of the full screen display area.

According to an embodiment of the present invention, FIGS. 5 (a) -5 (d) are implementations of various arrangement positions of a mixed-size split video picture. For example, the main split picture 410 is arranged at the upper left position of the screen, as shown in FIG. 5 (a). The main split screen 410 is arranged at the upper right position of the screen, as shown in FIG. 5 (b), the main split screen 410 is arranged at the lower left position of the screen, as shown in FIG. 5 (c), the main split screen 410 is arranged at The lower right position of the screen is shown in Fig. 5 (d); it mainly has different considerations for different arrangement positions according to the size of different display devices, the program editing of the software mentioned above, the monitoring habits of the driver, and so on.

A second embodiment of the present invention is that the pictures displayed on the display device 40 are equally divided video pictures as shown in FIGS. 6 (a) -6 (b) and the six divided sub-pictures (431,432,433,434,435,436) each have a The area of the third picture area (A3, A3 '), the area of the third picture area A3 occupied by each divided sub-picture in the screen of the display device is the same as each other, and the area of the picture area of the third area (A3, A3' ) Is between the first picture area A1 and the second picture area A2.

A third embodiment of the present invention is a full-screen display screen 440 shown on the display device 40 as shown in FIG. 7, which mainly provides a user who wants to monitor the state of a certain shooting area of the vehicle body. , It is enlarged to a full-screen display so that the real-time condition of the shooting area can be more clearly observed.

If the change event trigger is the case where the first or second video screen conversion procedure is performed because the number Y of Y video materials formed by X camera devices is less than or greater than a limited value in the timing interval, it is assumed on the transportation vehicle A description will be given of six imaging devices 51 attached. When an image change event generated by one of the monitored ends triggers the photographing device 51, the microcontroller 524 records that the photographing device 51 is touched. The number of times of sending and starting to count (for example, 3 seconds), then the microcontroller 524 converts the video data formed by the photographing device 52 into digital video data through the analog / digital converter 521, and then passes the image The processor 522 performs a video screen conversion program on the video data, and finally converts the digital format video data into an analog format through the digital / analog converter 523 and outputs the digital format to the display device 40 for displaying the video screen. At this time, on the display device The picture displayed on 40 corresponds to the full-screen video picture 440 captured by the triggered photographing device 51 as shown in FIG. 7.

If the image change event generated by the monitored terminal triggers multiple camera devices installed in other positions of the vehicle at the same time within the 3 second time interval (assuming that the other 5 camera devices are triggered), the micro-control The device 524 records the number of times the photographing device is triggered and restarts the time interval of 3 seconds. Then, the microcontroller 524 converts the video data formed by the plurality of photographing devices into the digital format through the analog / digital converter 521. The video data is then processed by the image processor 522 to perform a uniform video frame synthesis process on the video data, such as an image scaling process (Scaling Processor), an image segmentation process (Multi-Quad Processor, and an image color process (OSD Processor)). Finally, the digital / analog converter 523 is used to convert the digital format video data into an analog format and output it to the display device 40 for displaying the video screen. At this time, the screen displayed on the display device 40 corresponds to that shown in FIG. 6. Six equally divided video frames (431,432,433,434,435,436) captured by the trigger photography device. Similarly, if the image change event generated by the monitored end triggers three camera devices 51 in other positions within the time interval of 3 seconds, at this time, the picture displayed on the display device 40 is correspondingly The four equally divided video frames (not shown) captured by the photographing device 51 are triggered.

As mentioned above, if the triggering of the plurality of photographing devices mentioned above does not receive a trigger of a new image change event generated by the monitored end within the time interval of 3 seconds, the microcontroller 524 will record each The number of times the camera device is triggered is reset to zero, and the timer in the 3 second interval is turned off, and the video image (431,432,433,434,435,436) displayed on the display device 40 is cleared.

In summary, we can clearly understand that the most important of the monitoring system described in this case The technical means are:

A. The number and arrangement of image split sub-screens, so that it can be applied to a large transportation vehicle where the driver is separated from the monitoring screen due to the design of the vehicle body, and can only be installed in a limited interior space of the vehicle to make the display. The device is limited to a small screen size. Through the configuration and arrangement of the six divided sub-screens, the driver can select and switch between different divided screens (mixed size divided or equally divided video screens), and can still clearly observe To the various real-time conditions displayed in the split screen to improve the overall driving safety.

B. The monitoring host in the monitoring system can perform different video screen conversions based on whether the number of video materials (that is, the number of triggered camera devices) formed by multiple camera devices exceeds a limited value within the timing interval. The program enables the display device to display different video images. Through the technical means described in this case, the user can easily and comprehensively grasp the video images transmitted by a plurality of different triggered photography devices through the display device in real time. .

Although the present invention has been disclosed as above by way of example, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and retouches without departing from the spirit and scope of the present invention. Therefore, the protection of the present invention The scope shall be determined by the scope of the attached patent application for invention.

Claims (11)

A monitoring system for a transportation vehicle with an optimized monitoring image is suitable for a large transportation vehicle. The monitoring system includes: X camera devices installed at different positions of the vehicle body to record images of X monitored terminals respectively. Thereby, a display device generates display of Y video data; and a monitoring host, which is electrically connected to the display device and the X photographing devices, and the monitoring host performs a video screen conversion procedure in response to a change event trigger so that The display device switches between a first video frame and a second video frame. The first video frame is a Y split frame or a full screen display frame. The second video frame is a Y split frame. The screen may be a full-screen display screen; the X photographing devices are respectively installed at the front end of the vehicle body, the rear-view mirrors on both sides of the front of the vehicle, the rear of the vehicle, and the sides of the rear of the vehicle, and the lenses of each of the photographing devices are corresponding. A driver's visual dead-end area; the display device is a screen display with a screen size of 7 to 10 inches and 4: 3, 16: 9, or 16:10; the change event triggers at least Including the video of the vehicle body changing from a moving state to a stationary state and a moving direction of the vehicle body, the monitoring host responds to the change event triggered by the vehicle body changing from a moving state to a stationary state The picture conversion program causes the display device to be converted from the full-screen display picture to Y pieces of the divided sub-pictures. The video picture conversion process performed by the monitoring host in response to the change event triggered by a change in the movement direction of the vehicle body causes the video The display device converts the Y divided sub-pictures into the full-screen display picture; Y is 6 and Y is less than or equal to X, and the first video picture is different from the second video picture. As described in item 1 of the scope of the patent application, a monitoring system for a transportation vehicle with optimized surveillance images, wherein the configuration of the six divided sub-pictures is a mixed-size divided video picture, which includes: 1 main divided sub-picture , Which occupies an area of a first picture area; and five sub-split sub-pictures, each of the sub-split sub-pictures respectively occupies a second picture area area, the first picture area area being larger than the second picture area area. According to the monitoring system of the transportation vehicle with optimized surveillance images described in item 2 of the scope of patent application, the ratio between the area of the first picture area and the area of the second picture area is 4: 1. The monitoring system for a transportation vehicle with an optimized surveillance image as described in item 3 of the scope of the patent application, wherein the main split screen is configured at the upper left position, lower left position, upper right position, or lower right position of the screen of the display device . As described in item 2 of the scope of the patent application, a monitoring system for a transportation vehicle with optimized surveillance images, wherein the configuration of the six divided sub-pictures is an equally divided video picture and each has a third picture area area, each The area of the third picture area occupied by the divided sub-pictures on the screen of the display device is the same as each other. The monitoring system for a transportation vehicle with an optimized monitoring image as described in the first patent application scope, wherein the monitoring host includes an analog / digital converter, an image processor, a digital / analog converter, and a micro-control Device and a memory module; the analog / digital converter is electrically connected to the X camera devices, and is used to convert the analog voltage signals formed by the X camera devices to respectively capture the images of the X monitored ends Y video data in a digital format; the image processor is electrically connected to the analog / digital converter to receive Y video data in the digital format output by the analog / digital converter, and the Y video The data is output after a first video picture conversion program or a second video picture conversion program; the digital / analog converter is electrically connected to the image processor and the display device, and is used to perform the The first video picture conversion program or the Y video data of the second video picture conversion program is converted from a digital format to an analog format; the microcontroller is electrically connected to the X video cameras. The device and the image processor are used to control the image processor to perform the first video frame conversion program or the number of Y video data corresponding to a photographing device in a timing interval that is less than or greater than a limit value. A second video picture conversion program, so that the display device converts between the first video picture and the second video picture; the memory module is electrically connected to the analog / digital converter and the image processor To store the video data. The monitoring system for a transportation vehicle with an optimized monitoring image as described in item 1 of the scope of patent application, wherein the change event trigger is a first video frame conversion program or a first video frame conversion program for the monitoring host to receive a frame switching control signal. The second video picture conversion program further controls the display device to display the first video picture or the second video picture. The monitoring system for a transportation vehicle with an optimized monitoring image as described in item 1 of the scope of the patent application, wherein the change event trigger is performed for the monitoring host to receive a flash signal change from an electronic control unit (ECU). A video picture conversion program or a second video picture conversion program, and then controlling the display device to display the first video picture or the second video picture. The monitoring system for a transportation vehicle with an optimized surveillance image as described in item 6 of the scope of the patent application, wherein the change event trigger is triggered by the image change events of the X camera devices respectively generated by the X monitored terminals The timing is started. In the timing interval, the first video frame conversion procedure is performed because the number of Y video materials formed by the X photographing devices is less than the limit value, and then the display device is controlled to display the first video frame. The second video picture conversion program should be performed when the number of Y video materials formed by the X photographing devices is greater than the limit value, and then the display device is controlled to display the second video picture. According to the monitoring system of the transportation vehicle with the optimized surveillance image described in item 1 of the scope of the patent application, the X photographing devices each have a sensor for sensing the X generated by the monitored terminals. The image changes events. According to the monitoring system of a transportation vehicle with an optimized surveillance image as described in item 6 of the scope of the patent application, wherein the microcontroller is in the timing interval, the X monitored end does not generate the image change event, so that the X If each monitoring device is not triggered, the microcontroller performs a clear image frame program on the Y image frames displayed on the display device, and the microcontroller stops the timing of the timing interval.