TWI798939B - Driving image recording system and method thereof - Google Patents

Abstract

A method of driving image recording suitable for connecting to a vehicle electronic device with at least one camera device to record a driving image with information of date and time. The method includes the following steps of: receiving n number of driving operation signals; determining whether the driving operation signals are in a first voltage level or a second voltage level; if any the driving operation signal is determined to be the first voltage level, the driving operation signal is resolved and converted to a preset driving information for integrating in a specific area of the driving image; if any the driving operation signal is determined to be changed from the first voltage level to the second voltage level, cancel the preset driving information in the driving image; wherein n is a natural number and is greater than or equal to 2, and the preset information is a pictorial or textual information related to a directional light action and a brake light action for displaying, and the driving operation signals are obtained by wired connection to CAN BUS of the vehicle computer through the CAN bus interface of the vehicle electronic device. Therefore, the driving image is provided to be a favorable evidence for judging liability in the event of traffic accident.

Description

Driving image recording method and driving image recording device

The invention relates to the technical field of driving image recording, in particular to a driving image recording method and a driving image recording device that integrates a variety of driving information into a driving image to form a driving recording video with specific driving information.

According to the statistical report on road traffic accidents in 103 years of the Republic of China provided by the Accounting Office of the Republic of China, there were more than 295,000 road traffic accidents in that year, and it can be observed that the number of accidents has increased year by year in the past ten years. Once an unfortunate accident occurs, clarify how the accident happened In the event of an accident, the responsibility is attributed to the incident or the claim is settled. In today's common situation, most of the police units or appraisers do the accident appraisal at the accident scene and then cooperate with the driving record images to generate the accident appraisal report. This method is considered The evidence is still not comprehensive enough, and the evidence that is difficult to directly examine may be judged by the appraiser, which often leads to disagreement or grievances between the two parties in the accident.

Due to the advancement of the vehicle-mounted device, the vehicle-mounted device can record images of the road while driving, which is the driving recorder. The driving images recorded by the driving recorder can be used to compare the two sides of the traffic accident. Statements are used as auxiliary evidence for the attribution of responsibility for traffic accidents. Of course, there are also some previous technologies that propose that various traffic accident monitoring systems are designed to solve the problem of accident identification similar to the above. In the prior art, there are a large number of cameras equipped with radio equipment, digital image recognition or digital audio recognition. The monitoring system tries to use the observation facilities located in the surrounding environment to detect the characteristics or process of traffic accidents by means of identification methods, and further tries to visualize the location of traffic accidents to assist on-site processing personnel to judge.

However, due to the high cost of the above-mentioned systems, most of them can only be used in police units, and the evidence of their observations is still limited to the monitoring systems, radio equipment, and cameras installed, and the amount of data collected is not yet comprehensive. It is also difficult to provide general users with an objective appraisal report in the event of an accident, so its application is still limited. . For those skilled in this field, in order to solve the above problems, a technology that can extensively collect data affecting all aspects of the accident and automatically make a more objective third-party report is a method that can quickly understand the cause of the accident and save money. The necessary technology to follow up the waste of people's legal litigation resources. Therefore, if we can develop a kind of driving behavior data that can track the accident vehicle and combine all the objective information available in the surrounding area for comprehensive analysis and judgment, it will be able to provide a more scientific and complete analysis of fair traffic accident data, which will enable accident related parties or police units accept.

In view of this, and because of this reason, the inventor has conceived the present invention to overcome the above-mentioned problems after careful testing and research and a persistent spirit in view of the shortcomings in the prior art.

The purpose of the present invention is to propose a driving image recording method and a driving image recording device, through which the CAN bus interface of the vehicle-mounted DVR is connected to the CAN BUS of the driving computer in a wired manner to extract specific driving operation signals, especially the direction light action and braking. The differential signal of the lamp actuation, and through the preset FRAME ID of the DVR firmware, the driving integrated image recorded during the driving process can display the historical records of the turn signal actuation and the brake light actuation in a specific area, which can effectively provide the police with traffic accidents. It can be used as favorable evidence when judging the responsibility for the accident.

In order to achieve one of the objectives of the present invention, the present invention proposes a driving image recording method, which is suitable for vehicle-mounted electronic equipment connected with at least one camera device to record driving images with date and time information. The driving image recording method includes steps : Receive a satellite positioning information and n driving operation signals, n≧2; compare and analyze based on the satellite positioning information and a geographical map data to obtain a literal positioning information and integrate it into the driving image; synchronously judge the received The driving operation signals are respectively a first level or a second level; when it is judged that any of the driving operation signals is the first level, the driving operation signal is analyzed and converted into a preset driving information for Integrated and displayed in a specific area of the driving image; when it is determined that any of the driving operation signals is changed from the first level to the second level, the preset driving information is canceled from the driving image; the preset It is assumed that the driving information includes at least one directional light action and one brake light action in graphic or textual information, and these driving operation signals are connected to the CAN BUS of the driving computer in a wired manner through the CAN bus interface of the vehicle electronic equipment. obtain.

According to an embodiment of the present invention, when the driving operation signal is maintained at the first level, the preset driving information integrated in the driving image is displayed in a blinking mode or in a continuous mode, and the specific The area is a corner area of the driving image, and the corner area is any one of the above-mentioned upper left corner, lower left corner, upper right corner, and lower right corner.

According to an embodiment of the present invention, it further includes receiving a satellite positioning information, and performing comparison and analysis based on the satellite positioning information and a geographic map, so as to obtain a textualized positioning information and integrate it into the driving image, and the geographic map can be The Google map Geocoder API passes in the latitude and longitude information google.maps.LatLng object, and the satellite positioning information is converted into textualized positioning information through geocoder.geocode.

In order to achieve another purpose of the present invention, the present invention further provides a driving image recording device, which is suitable for connecting one or more camera devices to regularly capture driving images. The driving image recording device includes: a satellite positioning unit, a data processing unit unit, an image storage unit and an image display unit; the satellite positioning unit is mainly used to obtain a satellite positioning information of the vehicle body; the data processing unit includes:

a map database, which stores at least one geographical map;

A CAN control module, which is connected to the CAN BUS of the trip computer of the car body in a wired manner to capture n driving operation signals, n≧2;

A microprocessor, respectively receiving the driving image, the satellite positioning information, and the driving operation signals, and is used to compare and analyze the satellite positioning information with the geographical map information and to compare the driving image and the driving operation signals Analyzing and calculating to generate a vehicle integrated image including a textual positioning information and a preset driving information;

The image storage unit is mainly used to receive and store the integrated driving image; the image display unit is mainly used to receive and display the integrated driving image; wherein the preset driving information displayed by the image display unit includes at least one turn signal action and A pictorial or textual information of brake light action, and the textual positioning information and the default driving information are displayed in a specific area of the image display unit.

According to an embodiment of the present invention, the preset driving information further includes any one or more of the foregoing graphical or textual information of a reversing light actuation, an accelerator actuation opening, a warning horn actuation, and a vehicle speed .

According to an embodiment of the present invention, wherein the CAN control module includes a CAN controller and a CAN transceiver connected to the microprocessor, a plurality of nodes on the CAN BUS of the trip computer are connected through a twisted pair to capture the trip Operation signal, the CAN receiver converts the differential level transmitted on the CAN_H and CAN_L in the twisted pair into a logic level and outputs it to the CAN controller, and the CAN controller converts the logic level into a corresponding signal transmission to the microprocessor, and the microprocessor is the node of the CAN control module and based on the address of the FRAME ID pre-set and written in the firmware, it is judged that the received driving operation signals are respectively a first electrical signal level or a second level; when it is judged that any of the driving operation signals is at the first level, the preset driving information is converted and output; when it is judged that any of the driving operation signals is at the second level, the output is terminated The preset driving information; when the driving operation signal is maintained at the first level, the preset driving information integrated in the driving image is displayed in a blinking mode or in a continuous mode.

According to an embodiment of the present invention, wherein the driving image recording device has a built-in image management software, through a custom setting of the image management software and after receiving the preset driving information from the microprocessor, decoding is performed to make the image The display unit executes the display of the driving integrated image, and the default driving information of the graphical or textual information is determined by the custom setting, and the geographic map information can be imported into the latitude and longitude information google.maps by Google map Geocoder API .LatLng object, the textualized positioning information generated after the satellite positioning information is translated by geocoder.geocode.

According to an embodiment of the present invention, the image management software further includes an image segmentation module, and the image segmentation module analyzes and processes the driving images corresponding to the different camera positions captured by the lens modules and outputs them to the The image display unit executes the integrated driving image with a plurality of split screens, and the integrated driving image in each split screen displays the textual positioning information and the default driving information in the specific area.

According to an embodiment of the present invention, wherein the image storage unit includes a first storage module and a second storage module, a primary/secondary image storage sequence is set between the first storage module and the second storage module , the main/secondary image storage sequence is performed by the microprocessor during the period when the recording is not started and the recording is started. A state judgment is performed, and the state judgment includes:

judging whether the first storage module is abnormal and unable to perform storage;

judging whether the second storage module is abnormal and unable to perform storage;

judging whether a remaining storable space of the first storage module is smaller than a set threshold value of the overall storable space;

judging whether the remaining storable space of the second storage module is smaller than the set threshold of the overall storable space.

According to an embodiment of the present invention, when the driving image recording device is not activated for recording, the microprocessor executes a first judgment response based on the status judgment result, and the first judgment response includes:

If the results of a, b, c, and d judgments are all negative, then send a control signal to the first storage module as the image storage option when the recording is started;

If the results of a, b, c, and d are all yes, then send a control signal to the image display unit to display the abnormal information of the first storage module and the second storage module;

If only a and b are judged to be yes, then send a control signal to the image display unit to display the abnormal information of the first storage module and the second storage module;

If only the result of a judgment is yes, then send a control signal to the second storage module as the image storage option when the recording is started, and send a control signal to the image display unit to display the abnormality of the first storage module message;

If only the result of b judgment is yes, then send a control signal to the first storage module as the image storage option when the recording is started, and send a control signal to the image display unit to display the abnormality of the second storage module message;

If only the results of c and d judgments are yes, then send a control signal to the first storage module as the image storage option when the recording is started;

If only the result of c judgment is yes, then send a control signal to the second storage module as the image storage option when the recording is started;

If only the result of the judgment of d is yes, a control signal is sent to the first storage module as an image storage option when the recording is started.

According to an embodiment of the present invention, when the driving image recording device is in the recording start-up, the microprocessor executes a second judgment response based on the status judgment result, and the second judgment response includes:

If the results of a, b, c, and d are all negative, then send a control signal to the first storage module to receive and store the driving integrated image;

If the results of a, b, c, and d are all yes, then send a control signal to the image display unit to display the abnormal information of the first storage module and the second storage module and interrupt the reception of the integrated driving image ;

If only a and b are judged to be yes, then send a control signal to the image display unit to display the abnormal information of the first storage module and the second storage module and interrupt the reception of the driving integrated image;

If only the result of a judgment is yes, then interrupt the first storage module to receive the driving integrated image and send a control signal to the second storage module to perform the reception and storage of the driving integrated image, and send a control signal displaying an abnormal message of the first storage module to the image display unit;

If only the result of judgment b is yes, send a control signal to the first storage module to receive and store the driving integrated image, and send a control signal to the image display unit to display the abnormality of the second storage module message;

If only c and d are judged to be yes, send a control signal to the first storage module to receive the driving integrated image and overwrite the original stored driving image data with the latest driving image data;

If only the result of judgment c is yes, then send a control signal to the second storage module to receive and store the driving integrated image;

If only the result of the d judgment is yes, then send a control signal to the first storage module to receive and store the driving integrated image.

According to an embodiment of the present invention, wherein the set threshold is between 0.1% and 2.0% of the entire storable space of the first storage module or the second storage module, and the first storage module is Mechanical hard disk (HDD), solid state hard disk (SSD), card reader/memory card, the second storage module is an external mechanical hard disk (HDD), solid state hard disk (SSD), Card reader/memory card, USB chip module/USB pen drive supporting USB2.0/3.0 or above.

According to an embodiment of the present invention, wherein the microprocessor has a built-in date setting module RTC, and the driving integrated image displayed by the image display unit includes year, month/day, hour, date and time in the specific area. Text information of minutes and seconds.

The detailed description and technical content of the present invention are described below with the accompanying drawings, but the attached drawings are only for reference and illustration, and are not intended to limit the present invention. Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to these embodiments. The present invention covers any alternatives, modifications, equivalent methods and schemes made on the spirit and scope of the present invention. In order to provide the public with a thorough understanding of the present invention, specific details are set forth in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details.

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings. The detailed description and technical content of the present invention are described below with the accompanying drawings, but the attached drawings are only for reference and description, and are not used to limit the creation; and the foregoing and other technical contents, characteristics and Effects will be clearly presented in the following detailed descriptions of the various embodiments with reference to the drawings. The directional terms mentioned in the following embodiments, for example: "up", "down", "left", "right", "Front", "rear", etc., are only referring to the directions of the attached illustrations. Therefore, the used directional terms are used for illustration, not for limiting the invention; moreover, in the following embodiments, the same or similar elements will use the same or similar element numbers.

Based on the shortcomings of the above-mentioned conventional technologies, the present invention proposes a driving image recording method and a driving image recording device, especially for large transport vehicles where traffic accidents occur more frequently. The driving images recorded by the method and device described in the present invention can be Provide the police with more objective and favorable evidence for traffic accidents, so as to more clearly clarify the responsibilities of both parties involved in the accident. Please first refer to FIG. 1 , which draws a flow chart of the driving image recording method of the present invention.

The driving image recording method is mainly applicable to a vehicle-mounted electronic device connected with at least one camera device, such as a vehicle-mounted DVR, for recording a driving image with date and time information. The driving image recording method includes the following steps:

S10: Receive n driving operation signals and n≧2; where n is a natural number and greater than or equal to 2, and these driving operation signals are connected to the CAN BUS of the driving computer in a wired manner through the CAN bus interface of the vehicle electronic equipment obtain.

S20: Judging that the driving operation signals received by the CAN BUS of the bicycle computer are respectively a first level or a second level; wherein the first level and the second level are different high/high levels The low level is mainly determined according to the settings of different car manufacturers. If the first level is high level (Vih), then the second level is low level (Vil), and vice versa.

S30: When it is determined that any of the received driving operation signals is at the first level, analyze the driving operation signal and convert it into a preset driving information to be integrated and displayed in a specific area of the driving image; wherein the preset It is assumed that the driving information includes at least one directional light action and one brake light action in graphic or textual form.

S40: When it is determined that any one of the driving operation signals is changed from the first level to the second level, cancel the default driving information from the driving image.

According to an embodiment of the present invention, the preset driving information further includes any one or more of the foregoing graphical or textual information of a reversing light actuation, an accelerator actuation opening, a warning horn actuation, and a vehicle speed ; Moreover, when the driving operation signal is maintained at the first level, the preset driving information integrated in the driving image can be displayed in a flashing mode or a continuous mode.

In the above step S10, it further includes receiving a satellite positioning information, such as a GPS positioning signal, and performing comparison and analysis based on the satellite positioning information and a geographical map, so as to obtain a textualized positioning information and integrate it into the driving image. It is explained here that the received satellite positioning information is a latitude and longitude coordinate, for example: 24°58'47.6"N+121°32'45.6"E, and the geographic information is compared with the received latitude and longitude coordinate information The coordinate calculation is compared, and after translation, the positioning information is converted into a textual representation. In this embodiment, the geographic map data can be imported into the longitude and latitude information google.maps.LatLng object through the Google map Geocoder API, and the result converted by geocoder.geocode (positioning information in textual form), for example: Xindian District, New Taipei City No. 88, Section 3, Zhongxing Road

The recorded images based on the above-mentioned driving image recording method are subjected to a specific image compression format, such as H.264, H.265, MPEG-4, etc., but not limited thereto. Please refer to Figures 2 and 3a-3b, which are specific embodiments of driving videos recorded in different time periods by the driving video recording method of the present invention (including/excluding textual positioning information). In Figure 2, the driving information related to the driver’s current control of the vehicle is displayed in a specific area of the driving image. In addition to the generally understandable driving information such as date, time, and vehicle speed, it also displays textualized real-time location information. . In Figures 3a~3b, because the applicant is mainly performing the functional test images of this method, the display of the vehicle speed and textual positioning information in Figure 2 is turned off, and the actual driving video contains at least date, time, vehicle speed, Textual positioning information and the default driving information.

Therefore, the important technical feature of the present invention is that it further includes that the driver's operation behavior of turning on the left/right turning lights or stepping on the brake will be displayed in the recorded driving video. It is supplemented that the specific area is a corner area of the driving image, and the corner area may be any one of the above-mentioned upper left corner, lower left corner, upper right corner, and lower right corner of the driving image.

Based on the above method, the present invention further proposes a driving image recording device, so that those skilled in the art can better understand the technical features of the present invention. Please refer to FIG. 4 , which is a functional structure diagram of the driving image recording device of the present invention. The driving image recording device 100 is suitable for connecting one or more camera devices 200 to regularly capture driving images; wherein the camera device 200 mainly It includes a camera lens (not shown in the figure), a photosensitive module (not shown in the figure), a cache memory (not shown in the figure) and an image processing module (not shown in the figure). The acquired image light source is focused on the photosensitive module to be converted into an electronic signal (analog signal) and stored in the cache memory, and the photosensitive module can be used (Charge Coupling Device, CCD) or complementary metal oxide semiconductor (Complementary Metal-Oxide Semiconductor, CMOS) image sensing element; the principle of capturing images by the camera device 200 is a known technology, and will not be repeated here. As a supplementary note, the camera device 200 can be an additional camera device installed in different positions (front/rear/left/right...) inside or outside the car body, or it can be a camera device built into the car body itself, especially without The mirror car (mirroeless) completely abandons the rear view mirror of the traditional car body, and replaces it with camera devices built in various positions of the car body itself.

The driving image recording device 100 includes: a satellite positioning unit 110, a data processing unit 120, an image storage unit 130, and an image display unit 140; wherein the satellite positioning unit 120 is mainly used to obtain a satellite positioning information of the vehicle body L, for example: GPS positioning signal; the data processing unit 120 mainly includes a map database 121 , a CAN control module 122 and a microprocessor 123 . The map database 121 stores at least one geographic map (not shown in the figure) and can update the geographic map in a limited or wireless manner. The CAN control module 122 is connected to the CAN BUS of the trip computer of the car body through a wired method (CAN bus bar) to capture n driving operation signals CS and n≧2. In this embodiment, the CAN control module 122 includes a CAN controller 122a and a CAN transceiver 122b connected to the microprocessor 123, and the CAN receiver 122b shields computer signals through a twisted pair (for example: aluminum foil + copper network double shielding) Twisted pair) to connect multiple nodes on the CAN BUS of the trip computer to capture the driving operation signals CS, convert the differential level transmitted from CAN_H and CAN_L in the twisted pair to logic level and output to the CAN controller 122a, the CAN controller 122a converts the logic level into a corresponding signal and sends it to the microprocessor 123 . Therefore, the present invention can separately pull out the twisted-pair connection for the desired driving operation signal CS, for example, the ECU corresponding to the activation of the directional lights on the CAN BUS or the activation of the brake lights.

In this embodiment, the driving operation signal CS captured by the CAN BUS of the driving computer includes at least two operation signals of the vehicle's turn signal actuation CS1 and brake light actuation CS2. The first level and the second level are different high/low potentials, which are mainly determined according to the settings of different car manufacturers. If the first level is a high level (Vih), then the second level is Low level (Vil), and vice versa. In another embodiment of the present invention, the driving operation signal CS captured by the CAN BUS of the driving computer may further include a reversing light activation CS3, an accelerator opening CS4, a warning horn activation CS5, a driving speed Any one of the aforementioned operation signals of CS6.

The microprocessor 123 may include at least two components, an image processor 123a and an arithmetic processor 123b. The image processor 123a mainly receives electronic signals in the cache memory of the camera device 200 and performs image processing to generate the driving image. P, and the computing processor 123b respectively receives the driving image P, the satellite positioning information and the driving operation signals for comparing and analyzing the satellite positioning information with the geographical map information and comparing the driving image with the Analyze and calculate some driving operation signals to generate a driving integrated image PS including a literal location information (Location_data) and a preset driving information (Driving_data); wherein the microprocessor 123 is used as the CAN control module 122 The node judges that the received driving operation signals CS are respectively a first level or a first level based on the FRAME ID address (corresponding to different electronic control units ECUs in the CAN BUS) preset by the firmware. Two levels; when it is judged that any one of the driving operation signals CS is at the first level, the preset driving information (Driving_data) is converted and output; when it is judged that any one of the driving operation signals CS is at the second level, the output is terminated The default driving information (Driving_data).

The image storage unit 130 is mainly used to receive and store the integrated driving image PS; the image display unit 140 is mainly used to receive and display the integrated driving image PS; the preset driving information (Driving_data) displayed by the image display unit 140 ) includes at least one directional light action and one brake light action image or text information, and the text positioning information (Location_data) and the default driving information (Driving_data) are displayed on the specific image display unit 140 in the area.

In this embodiment, an image management software (not shown) is built in the driving image recording device 100, and the preset driving information (Driving_data) is received from the microprocessor 123 through a custom setting of the image management software. ) after decoding, so that the image display unit 140 executes the display of the integrated driving image PS, and the default driving information of the graphical or textual information is determined by the custom setting.

According to an embodiment of the present invention, the preset driving information may further include a reversing light action, an accelerator opening, a warning horn action, and any one or more of the above-mentioned graphic or textualized driving speed. information; moreover, when the driving operation signal CS is maintained at the first level, the default driving information (Driving_data) integrated in the driving image P can be performed in a flashing mode or in a continuous mode display, and the specific area is a corner area of the driving integrated image PS, and the corner area can be any of the aforementioned upper left corner, lower left corner, upper right corner, and lower right corner of the driving integrated image PS By. Moreover, a date setting module RTC is built in the microprocessor 123, and the integrated driving image PS displayed by the image display unit 140 is displayed in the specific area including year, month/day, hour, minute, Text information in seconds.

The specific embodiment of the driving integrated image PS generated based on the recording of the driving image recording device described in the present invention can also refer to FIGS. 2 , 3a-3b of the present invention. Therefore, in addition to the generally understandable driving information such as date, time, and vehicle speed, the driving integrated image PS also displays textual positioning information (Location_data) and the default driving information (Driving_data), for example: the driver is performing a left turn The operation behaviors of turning on/turning right and stepping on the brake will be displayed in the recorded driving integrated image PS.

According to an embodiment of the present invention, the image management software further includes an image segmentation module, and the image segmentation module performs analysis processing and output according to the driving images P corresponding to different camera positions captured by the lens modules. Until the image display unit executes the driving integrated image (PS1, PS2, PS3, PS4...) with a plurality of split screens, and the driving integrated image (PS1, PS2, PS3, PS4...) in each split screen is The textual positioning information (Location_data) and the default driving information (Driving_data) are displayed in the specific area, as shown in FIG. 5 , which is the driving integrated image PS generated by the recording of the driving image recording device of the present invention. A specific embodiment of the integrated images of each vehicle in the split screen is executed through the image management software (without textualized positioning information).

According to an embodiment of the present invention, the image storage unit 130 further includes a first storage module 131 and a second storage module 132, and a The primary/secondary image storage sequence, the primary/secondary image storage sequence is performed by the microprocessor 123 during a period when a recording is not started and a recording is started, and a state judgment is performed, and the state judgment includes:

a. judging whether the first storage module 131 is abnormal and unable to perform storage;

b. judging whether the second storage module 132 is abnormal and unable to perform storage;

c. judging whether a remaining storable space of the first storage module 131 is less than a set threshold of the overall storable space; and

d. judging whether the remaining storable space of the second storage module 132 is smaller than the set threshold of the overall storable space.

In this embodiment, when the driving image recording device 100 is not in the recording state (the power is turned on but the recording is not started), the microprocessor 123 executes a first judgment response based on the state judgment result, the The first judgment response includes:

If the results of a, b, c, and d judgments are all negative, a control signal is sent to the first storage module 131 as an image storage option when the recording is started;

If the results of a, b, c, and d judgments are all yes, then send a control signal to the image display unit 140 to display the abnormal information of the first storage module 131 and the second storage module 132;

If only the results of a and b judgments are yes, then send a control signal to the image display unit 140 to display the abnormal information of the first storage module 131 and the second storage module 132;

If only the result of a judgment is yes, then send a control signal to the second storage module 132 as the image storage option when the recording is started, and send a control signal to the image display unit 140 to display the first storage module 131 abnormal message;

If only the result of b judgment is yes, then send a control signal to the first storage module 131 as the image storage option when the recording is started, and send a control signal to the image display unit 140 to display the second storage module 132 abnormal message;

If only the results of c and d judgments are yes, then send a control signal to the first storage module 131 as the image storage option when the recording is started;

If only the result of c judgment is yes, then send a control signal to the second storage module 132 as the image storage option when the recording is started;

If only the result of the judgment of d is yes, a control signal is sent to the first storage module 131 as an image storage option when the recording is started.

In addition, when the driving image recording device 100 is in the recording start (image recording period), the microprocessor 123 executes a second judgment response based on the state judgment result, and the second judgment response includes:

If the results of a, b, c, and d are all negative, then send a control signal to the first storage module 131 to receive and store the driving integrated image PS;

If the results of a, b, c, and d judgments are all yes, then send a control signal to the image display unit 140 to display the abnormal information of the first storage module 131 and the second storage module 132 and stop the driving integration Reception of image PS;

If only a and b are judged to be yes, then send a control signal to the image display unit 140 to display the abnormal information of the first storage module 131 and the second storage module 132 and interrupt the integration of the driving image PS. take over;

If only the result of a judgment is yes, then interrupt the first storage module 131 to execute the reception of the driving integrated image PS and send a control signal to the second storage module 132 to execute the reception and storage of the driving integrated image PS, and sending a control signal to the image display unit 140 to display the abnormal message of the first storage module 131;

If only the result of judgment b is yes, then send a control signal to the first storage module 131 to receive and store the driving integrated image PS, and send a control signal to the image display unit 140 to display the second storage module Abnormal message of group 132;

If only c and d are judged to be yes, then send a control signal to the first storage module 131 to receive the driving integrated image PS and overwrite the original stored driving image data PS with the latest driving image data;

If only the result of judgment c is yes, then send a control signal to the second storage module 132 to receive and store the driving integrated image;

If only the result of the judgment of d is yes, then send a control signal to the first storage module 131 to receive and store the driving integrated image.

In this embodiment, the first storage module 131 can be any one of the aforementioned mechanical hard disk (HDD), solid state disk (SSD), card reader/memory card, and the second storage module 132 can be External mechanical hard disk (HDD), solid state disk (SSD), card reader/memory card, USB chip module/USB pen drive supporting USB2.0/3.0 or above.

To sum up, the present invention proposes a driving image recording method and its device, through which the CAN bus interface of the vehicle-mounted DVR is connected to the CAN BUS of the driving computer in a wired manner to obtain specific driving operation signals, especially the actuation of the direction lights. And the differential signal of the brake light action, and through the preset FRAME ID of the DVR firmware, the driving integrated image recorded during the driving process can display the driving control history records of the direction light action, brake light action, etc. in a specific area, which can be effectively Provide the police with favorable evidence when judging the responsibility for the accident when the traffic accident occurs.

Although the preferred embodiments of the present invention are disclosed above, they are not intended to limit the present invention. Any person familiar with similar techniques may make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection shall be subject to what is defined in the scope of patent application attached to this manual. However, the above specific embodiments are only used to illustrate the characteristics and effects of the present invention, and are not used to limit the scope of the present invention. Without departing from the spirit and technical scope of the present invention, any use of the present invention Equivalent changes and modifications made to the disclosed content of the invention should still be covered by the scope of the following patent application.

S10~S40: Flow chart of driving image recording method 100: Driving image recording device 110: Satellite positioning unit 120: data processing unit 121:Map database 122:CAN control module 122a: CAN controller 122b: CAN transceiver 123: Microprocessor 123a: Image processor 123b: Operation processor 130: image storage unit 131: The first storage module 132: Second storage module 140: Image display unit 200: camera device L: Satellite positioning information P: driving image PS, PS1, PS2.PS3, PS4: integrated driving images CS: Driving operation signal CS1: Turn signal actuation signal CS2: Brake light actuation signal CS3: Reversing light operation CS4 CS4: Throttle actuation opening CS5: warning horn action CS6: Driving speed Location_data: Textual location information Driving_data: default driving information

Fig. 1 is a flow chart of the driving image recording method of the present invention. Fig. 2 is a specific embodiment of the driving video recorded in Fig. 1 of the present invention (including text positioning information) 3a-3b are specific embodiments of driving videos recorded in different time periods in FIG. 1 of the present invention (without textual positioning information). FIG. 4 is a block diagram of the driving image recording device of the present invention.

S10~S40: Flow chart of driving image recording method

Claims (12)

A driving image recording method, which is applicable to a vehicle-mounted electronic device (DVR) connected with one or more camera devices, for recording a driving image with date and time information, the steps of the driving image recording method include: receiving n driving operations signal, n≧2; judge that the received driving operation signals are respectively a first level or a second level; when it is judged that any of the driving operation signals is at the first level, analyze the driving operation signal and converted into a preset driving information to be integrated and displayed in the driving image; when it is determined that any of the driving operation signals is changed from the first level to the second level, the default driving is canceled from the driving image Information; wherein the default driving information includes at least one directional light action and one brake light action in graphic or textual information and displayed on the display screen of the vehicle electronic device, the default driving information is integrated in the driving In a specific area of the image, the driving operation signals are obtained by connecting the CAN BUS of the driving computer in a wired manner through the CAN bus interface of the vehicle electronic device, and the specific area is a corner area of the driving image. The driving image recording method according to claim 1, wherein when the driving operation signal is maintained at the first level, the preset driving information integrated in the driving image is displayed in a flashing mode or a continuous mode, And the preset driving information further includes any one or more of the aforementioned graphic or textual information of a reversing light action, an accelerator opening, a warning horn action, and a driving speed. Such as the driving image recording method of claim item 1, which further includes receiving a satellite positioning information, and comparing and analyzing the satellite positioning information with a geographic map to obtain a textualized positioning information and integrate it into the driving image, and the Geographic data can be passed in Google map Geocoder API latitude and longitude information google.maps.LatLng object, the satellite Positioning information is the textualized positioning information generated after translation through geocoder.geocode. A driving image recording device, suitable for connecting one or more camera devices to regularly capture driving images, the driving image recording device includes: a satellite positioning unit for obtaining a satellite positioning information of the vehicle body; a data processing unit , which includes: a map database, which stores at least one geographical map; a CAN control module, which is connected to the CAN BUS of the vehicle computer in a wired manner to retrieve n driving operation signals, n≧2 ; A microprocessor, respectively receiving the driving image, the satellite positioning information and the driving operation signals, for comparing and analyzing the satellite positioning information with the geographical map data and the driving image and the driving operation signals Analytical calculations are performed to generate a vehicle integrated image including a textual positioning information and a preset driving information; an image storage unit is used to receive and store the integrated driving image; an image display unit is used to receive the driving information Integrating images and displaying them; wherein the default driving information displayed on the image display unit includes at least graphical or textual information of a directional light action and a brake light action, and the textual positioning information and the default driving information is displayed in a specific area of the image display unit, and the specific area is a corner area of the driving image. Such as the driving image recording device of claim 4, wherein the preset driving information further includes a reversing light action, an accelerator opening, a warning horn action, and the image of any one or more of the above-mentioned driving speed or textual information. Such as the driving image recording device of claim 4, wherein the CAN control module includes a CAN controller and a CAN transceiver connected to the microprocessor, and is connected to a plurality of nodes on the CAN BUS of the driving computer through a twisted pair to capture The driving operation signals, the The CAN receiver converts the differential level transmitted on the CAN_H and CAN_L in the twisted pair into a logic level and outputs it to the CAN controller, and the CAN controller converts the logic level into a corresponding signal and sends it to the microprocessor device, and the microprocessor is used as the node of the CAN control module and based on the address of the FRAME ID pre-set and written in the firmware, it is judged that the received driving operation signals are respectively a first level or a The second level; when it is judged that any one of the driving operation signals is at the first level, the preset driving information is converted and output; when it is judged that any of the driving operation signals is at the second level, the output of the preset driving information is terminated information; when the driving operation signal is maintained at the first level, the preset driving information integrated in the driving image is displayed in a blinking mode or in a continuous mode. Such as the driving image recording device of claim 6, wherein the driving image recording device has a built-in image management software, which is decoded after receiving the preset driving information from the microprocessor through a custom setting of the image management software, to Make the image display unit execute the display of the driving integrated image, and the default driving information of the graphic or textual information is determined by the custom setting, and the geographic information can be passed in the latitude and longitude information by the Google map Geocoder API google.maps.LatLng object, the textual positioning information generated after the satellite positioning information is translated through geocoder.geocode. The driving image recording device of claim 7, wherein the image management software further includes an image segmentation module, and the image segmentation module performs analysis and processing according to the driving images corresponding to different camera positions captured by the lens modules And output to the image display unit to execute the integrated driving image with multiple split screens, and the integrated driving image in each split screen displays the textual positioning information and the default driving information in the specific area . The driving image recording device of claim 4, wherein the image storage unit includes a first storage module and a second storage module, and a master/secondary is set between the first storage module and the second storage module Image storage sequence, the main/secondary image storage sequence is performed by the microprocessor during the period when the recording is not started and the recording is started. The state judgment includes: a. judging whether the first storage module is in an abnormal state and unable to perform storage; b. judging whether the second storage module is in an abnormal state and unable to perform storage; c. judging whether a remaining storable space of the first storage module is less than a set threshold value of the overall storable space; d. judging whether the remaining storable space of the second storage module is smaller than the set threshold of the overall storable space. The driving image recording device according to claim 9, wherein when the driving image recording device is not recording, the microprocessor executes a first judgment response based on the state judgment result, and the first judgment response includes: If the results of a, b, c, and d judgments are all negative, then send a control signal to the first storage module as the image storage option when the recording is started; if the results of a, b, c, and d judgments are all yes , then send a control signal to the image display unit to display the abnormal information of the first storage module and the second storage module; if only the results of a and b judgments are yes, then send a control signal to the image display unit To display the abnormal information of the first storage module and the second storage module; if only the result of a judgment is yes, then send a control signal to the second storage module as the image storage option when the recording is started, and sending a control signal to the image display unit to display the abnormal message of the first storage module; If only the result of b judgment is yes, then send a control signal to the first storage module as the image storage option when the recording is started, and send a control signal to the image display unit to display the abnormality of the second storage module message; if only the result of judgment of c and d is yes, then send a control signal to the first storage module as the image storage option when the recording starts; if only the result of c judgment is yes, then send a control signal to The second storage module is used as the image storage option when the recording is started; if only the d judgment result is yes, then a control signal is sent to the first storage module as the image storage option when the recording is started. The driving image recording device according to claim 9, wherein when the driving image recording device is in the recording state, the microprocessor executes a second judgment response based on the state judgment result, and the second judgment response includes: if The results of a, b, c, and d judgments are all negative, then send a control signal to the first storage module to receive and store the driving integrated image; if the results of a, b, c, and d judgments are all yes, Then send a control signal to the image display unit to display the abnormal information of the first storage module and the second storage module and interrupt the reception of the driving integrated image; if only the results of a and b judgments are yes, then send A control signal is sent to the image display unit to display the abnormal information of the first storage module and the second storage module and interrupt the reception of the driving integrated image; if only the result of judgment a is yes, the first storage is interrupted The module executes the reception of the driving integrated image and sends a control signal to the second storage module to execute the reception and storage of the driving integrated image, and sends a control signal to the image display unit to display the abnormal message of the first storage module ; If only the result of judgment b is yes, send a control signal to the first storage module to receive and store the driving integrated image, and send a control signal to the image display unit to display the abnormality of the second storage module message; if only c and d are judged to be yes, then send a control signal to the first storage module to perform the reception of the driving integrated image and overwrite the original stored driving image data with the latest driving image data; if Only the result of judgment c is yes, then send a control signal to the second storage module to receive and store the driving integrated image; if only the result of d judgment is yes, then send a control signal to the first storage module The group receives and stores the driving integrated image. Such as the driving image recording device of claim 9, wherein the set threshold is between 0.1% and 2.0% of the entire storable space of the first storage module or the second storage module, and the first storage module The set is any one of the aforementioned mechanical hard disk (HDD), solid state hard disk (SSD), card reader/memory card, and the second storage module is an external mechanical hard disk (HDD), solid state hard disk ( SSD), card reader/memory card, USB chip module/USB pen drive supporting USB2.0/3.0 or above.

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