TWI327640B - Transportation recorder and recording method thereof - Google Patents

Description

1327640 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a vehicle motion recorder, and more particularly to a vehicle motion recorder having a microphone recording function. , ~ [Prior technology]

The increasing popularity of the father-passing tools has improved people's lives, but it has also caused many problems. For example, in recent years, with the advancement of the automobile industry, the rate of increase has been raised, and traffic accidents caused by improper driving by drivers are also Support. Passing $, after the accident of the father pass, it is often difficult to judge the cause of the accident and the responsibility of the accident. Who is the majority of the pens and the parties say: 1 It is difficult to have clear evidence to provide traffic transfer, appraisal authority or court office. The accident was issued with the responsibility of "Xian and Shi. The purpose of the project is to take pictures of the people who have left the scene after the accident occurred. This is only possible to judge the accident system based on the photo data. Reappearing the condition of the wood, it is limited to find out the real cause of the traffic accident: the speed of the traffic accident, the distance traveled, the direction of the tunnel and the status of the traffic sign, etc., is a recurring traffic accident There was information that was very important at the time, but it was often obtained afterwards, and the households were able to help the traffic accidents. Recorded by means of images, for example: the direction of travel of other vehicles is in the state of the number, etc. 1 'as is known to have recorded image work 6 1327640

The portable vehicle activity recorder needs to have a storage device for storing image data, such as a hard disk, in order to completely record the image during driving. Since the memory space occupied by the image data is very large, the memory capacity of the storage device must be Sufficient, at least enough to store 24 hours of image data, but the cost of the vehicle motion recorder will increase. Moreover, when the large storage device has insufficient memory space, in order to continue to store the image data, only the storage device can be replaced or added, or the image data that is not needed or is too long in the storage device is deleted. Generally, the storage device is disposed in the vehicle activity recorder. If the user wants to additionally store the image data in the vehicle activity recorder, the storage device needs to be taken out from the vehicle motion recorder and connected to the reading device. After that, the image data in the storage device can be copied out, which is very inconvenient to use. The general vehicle motion recorder starts to record some images during driving when the car starts, and records until the car stops, and the vehicle motion recorder stops recording. Therefore, the image data recorded by the conventional storage device is mostly A long time image file. Once the memory space of the storage device is insufficient, some image files must be deleted to free up some of the memory space to continue recording the image when driving. The image data of a traffic accident while driving and the image data that the user wants to keep are often only a small part of the image file. For example, perhaps only ten minutes of the eight-hour image file is the image of a traffic accident while driving. Sometimes, the image data that the user wants to keep is only a small part of the image file. If the image data is retained, an entire 7 1327640 image file of up to eight hours, for example, is retained and occupied in the storage device. Living a large amount of memory space, which will greatly reduce the use efficiency of the storage device, and increase the memory space required by the storage device, and relatively increase the cost of the vehicle motion recorder.

Of course, due to the length of the driving time, the problem of insufficient memory space may occur at any time. Therefore, the user needs to check whether the memory space of the storage device is sufficient. If the check is forgotten, if there is insufficient memory space during driving, Driving is likely to have to delete the image file while driving, which will cause great harm to the driving safety of driving. Therefore, how to develop a traffic action recorder and its recording method that can improve the above-mentioned conventional technology is an urgent problem to be solved. SUMMARY OF THE INVENTION The main purpose of the present invention is to provide a vehicle motion recorder having the function of recording motion data of a vehicle. Although a storage device with limited memory space is used, the motion image data of the vehicle can be recorded for a long time. Moreover, when the vehicle is in motion, the recording of images and audio will not be stopped due to insufficient memory space, and the memory space of the storage device and the copy of the action video data file can be easily expanded, and the user can install, correct and dismantle it by himself. Another object of the present invention is to provide a method for recording a vehicle motion recorder, which utilizes a limited memory space, records instant video and audio data, determines audio and video data that must be retained, retains audio and video data that must be stored, and judges that it can be deleted or Without retaining the audio and video data, the trafficman 8 1327640 can record the action video and audio continuously in a limited memory space without stopping the recording due to insufficient memory space.

In order to achieve the above object, a broader aspect of the present invention provides a vehicle motion recorder for use in a vehicle for recording action video data of a vehicle, comprising: a storage device for storing the action video of the vehicle Information; audio and video capture device for capturing action video of the vehicle; encoder for encoding the action video captured by the audio and video capture device into action video data; sensor for sensing the vehicle The degree of shaking is used as one of the attribute information of the action video data; and the controller is connected to the storage device, the video capturing device, the encoder, and the sensor to determine that the deletion is stored according to the attribute information of the action video data. Part of the action video and audio data in the specified range in the storage device, and the memory space is generated to record the new action video and audio tribute. In order to achieve the above object, another broad aspect of the present invention provides a method for recording a vehicle motion recorder for use in a vehicle, the method comprising the steps of: (a) establishing a file space in the storage device, The action video data file of the storage vehicle includes a data management information unit and a plurality of video data units, each of which is independent of each other, and the data management information unit includes a plurality of attribute information of the audio and video data unit; b) looking for the storage space of the blank video data unit, if there is no blank video data unit storage space, according to the plurality of attribute information of the video data unit included in the data management information unit, it is determined which is the priority deleted video data unit. Storing space and deleting the storage space of at least one non-blank video data unit; and (c) writing line 9 1327640 moving audio data to a blank or deleted video data unit storage space. [Embodiment]

Some exemplary embodiments embodying the features and advantages of the present invention are described in detail in the following description. It is to be understood that the present invention is capable of various modifications in the various aspects of the present invention, and the description and illustration are in the nature of

Please refer to the first figure, which is a block diagram of the internal architecture of the vehicle travel recorder of the preferred embodiment of the present invention. As shown in the first figure, the traffic tool action recorder 1 of the present invention is mainly applied to a vehicle, such as a car, a train, a MRT, and is not limited thereto, for recording action video data of a vehicle during traveling. The vehicle motion recorder 1 of the present invention includes a storage device 10, at least one video capture device 11, an encoder 12, at least one sensor 13, and a controller 14. The storage device 10 is configured to store the action video data of the vehicle, the audio and video capture device 11 is used to capture the motion image and/or audio of the vehicle, and the encoder 12 is configured to capture the action image captured by the audio and video capture device 11. And/or the audio code is the action video material, and the sensor 13 is used to sense the degree of sway of the vehicle as one of the attribute information of the action video material. In addition, the controller 14 is connected to the storage device 10, the video capture device 11, the encoder 12, and the sensor 13 to determine, according to the attribute information of the action video data, the deleted portion that has been stored in the specified range in the storage device 10. Action video and audio data, and the memory space to continuously record the new 邑 'controller Η can judge the sensing material. For example, it is smaller than the swaying tolerance value, and it is decided to delete the action video data in the specified range of the swaying level of the stored memory, and store the new action video material. In addition, 1 memory space for continuous storage = sensing swaying degree is greater than or equal to sway =; 2: she expects 'the profit of the traffic accident occurred in the original 1 more involved in the vehicle action recorder Bu Bean" wheeled poor or set The device 1 includes, for example, setting the required movement value of the action d; 4: Γ, setting the video format, setting part of the action shadow; data 22:: Γ sample rate, setting I 袼 袼 or Combinations, etc., recorders 1 contains = 2 in the embodiment stored in the storage "set 1G action 14" for decoding the six-inch sneakers. In addition, the sniper: "action recorder 1 further includes a video playback device 17, the video 2 device 17 _. display m and / or speaker 172; control 14' for decoding the decoder 16 The action shadows the second image and/or the sound reading. In some implementations, the video couch includes an image capturing device (1) and/or a radio device 112, and the hemp device 111 is connected to the controller (4). Taking the vehicle; X, 1327640, the video capture device 11 of the vehicle motion recorder 1 of the present invention further includes a fixing device, such as a suction cup (not shown), so that the user can easily use the fixing device The video capture device 11 is respectively fixed at positions of the front, rear, left and right of the vehicle, so that the environment image and audio of the front, back, left and right of the vehicle can be captured when the vehicle is in motion. The user can further control the video capture device 11 to adjust the focus and/or direction.

Referring to the first figure, in some embodiments, when the vehicle motion recorder 1 is recording the action video material of the vehicle, since the memory space of the storage device 10 is limited, in order to enable the vehicle motion recorder 1 to continue And continuously recording the action video data, the controller 14 senses whether the sway of the vehicle is less than a sway tolerance value according to the sensor 13 to determine whether to delete a part of the action video data stored in the storage device 10, thereby It can generate enough memory space to store action video and audio tribute in a limited memory space. The degree of sway of the vehicle is sensed by the sensing 13 mainly because the vehicle has a collision and a large sway, that is, the acceleration changes, when the vehicle is in an accident, so when the degree of sway of the vehicle exceeds a certain degree, There is a great possibility that the accident occurs at the time of occurrence. Therefore, in order to prevent the controller 14 from deleting the part of the action video data from the storage device 10, it is necessary to retain the action video data of the set range before and after the occurrence of the time point, while other parts are visible. The memory area can be deleted and covered in the storage device 10, so that the action video material can be continuously recorded in a limited memory space without deleting the important video and audio data recorded at the time of the accident. 13 1327640

The actual implementation and flow of the vehicle activity recorder 1 of the present case will be further described in detail below. Please refer to the third figure, which is a schematic diagram of the main process of implementing the vehicle activity recorder of the preferred embodiment of the present invention. As shown in the third figure, the manner of executing the vehicle activity recorder 1 of the present invention mainly includes five modes: setting mode M1, file establishing mode M2, recording mode M3, read-only setting mode M4, and reading mode M5, but Not limited to this. The user can select the mode to be executed, and at the same time, the display device 171 will display the options of these setting modes, so that the user can clearly understand the functions, selections and setting methods. In some embodiments, the step of determining which mode the user selects to perform is as follows: First, step S11 is performed to determine whether the user has selected to execute the setting mode M1, and if so, to execute the setting mode M1, if not, execute the step S12. Next, when the user does not select to execute the setting mode M1, step S12 is performed to determine whether the user has selected to execute the file creation mode M2, and if so, the file creation mode M2 is executed, and if not, step S13 is executed. Then, when the user has not selected to execute the file creation mode M2, step S13 is performed to determine whether the user has selected to execute the recording mode M3, and if so, the recording mode M3 is executed, and if not, step S14 is executed. Thereafter, when the user has not selected to execute the recording mode M3, step S14 is performed to determine whether the user has selected to execute the read-only setting mode M4, and if so, the read-only setting mode M4 is executed, and if not, the step S15 is executed. Finally, when the user does not select to execute the read-only setting mode M4, step S15 is performed to determine whether the user has selected to execute the reading mode M5, and if so, the reading mode M5 is executed, and if not, step S11 is performed to repeat The aforementioned step 14 1327640. In some embodiments, the order of the setting mode M1, the file creation mode M2, the recording mode M3, the read-only setting mode M4, and the reading mode M5 is not limited.

Please refer to the fourth figure, which is a schematic diagram of the process of executing the setting mode. As shown in the fourth figure, first, as step M1 1, a step of setting the date is performed, whereby the user can change the recording date of the vehicle activity recorder 1. Thereafter, as step M12, a step of setting the time is performed, whereby the user can change the time of the vehicle activity recorder 1. Then, in step M13, a step of setting an image format is performed, whereby the user can set a format for recording the motion image data of the vehicle, for example, MPEG1, MPEG2, MPEG4, WMV, RM or SD-Video format. . Subsequently, in step M14, a step of setting the audio format is performed, whereby the user can set the format of the audio recording to, for example, MPEG1, MPEG2, MPEG4, WMA or Linear PCM. Finally, in step M15, a step of setting the sway tolerance value is performed, whereby the user can complete the setting of the swaying tolerance value. Of course, the sequence of executing the process steps of the setting mode M1 is variable and is not limited thereto. Please refer to the fifth figure, which is a schematic diagram of the process of executing the file creation mode. As shown in the fifth figure, first, step M21 is performed to determine whether the memory space of the storage device 10 has sufficient memory space. If the memory space of the storage device 10 is insufficient, the file creation mode M2 is ended. If the memory space of the storage device 10 is sufficient. Then proceed to step M22. Next, after determining that the memory space of the storage device 10 is sufficient, step M22 is performed to establish a file space in the storage device 10. Then, proceed to step M23 to initialize the intersection 15 1327640

The action video data file of the tool, wherein the action video file file 6 includes at least one data management information unit 61 and a plurality of video data units 62, as shown in the sixth figure. Each of the audio and video data files 62 of the action video data file 6 is independent of each other for storing action video data recorded at different times, for example, motion images and/or audio of the vehicle, and the data management information unit 61 records video and audio data. The plurality of attribute information of the unit 62, for example, the data value of the degree of vehicle shaking, the readability of the action video data, and the date and time recorded by the action video data, but are not limited thereto. Please refer to the seventh figure, which is a schematic diagram of the process of executing the recording mode. As shown in the seventh figure, the steps of executing the recording mode are as follows: First, step M31 is performed to find the storage space of the blank video data unit 62. If there is no storage space of the blank video data unit 62, step M35 is performed. Then, if there is a storage space for finding the blank video data unit 62, proceed to step M32 to write the action video data into the storage space of the blank or deleted video data unit 62 and the attribute information of the video data unit 62. The information is stored in the data management information unit 61. The action video data is captured by the video capture device 11 and captured by the encoder 12 and stored in the blank video data unit 62. storage space. Then, step M33 is performed to determine whether or not to stop writing the motion picture material, and if it is to stop, the process ends. If not, the process proceeds to step M34. Then, if the action video data is not written into the storage space of the blank video data unit 62, step M34 is performed to determine whether the storage space of the video data unit 62 being written has been used 16 1327640, if the storage space has been After use, step M31 is performed, and if there is still storage space, step M32 is performed.

In addition, when step M31 is performed and the storage space of the blank video data unit 62 is not found, step M35 is performed, according to the attribute information of the video data unit 62 included in the data management information unit 61, for example, the sensor 13 senses The degree of swaying, whether the storage space of the video data unit 62 is set to the time recorded by the read-only or action video material, and the like, determine and search for the storage space of the video data unit 62 which is preferentially deleted. Then, in step M36, according to the determination and the search result, the storage space of the at least one non-blank video data unit 62 is deleted, and then the step M32 is performed to write the action video data into the storage space of the blank or deleted video data unit 62. . Please refer to the eighth diagram, which is a schematic diagram of the process of executing the read-only setting mode. As shown in the eighth figure, first, in step M41, the user first selects the action video material that he wants to retain. Then, step M42 is performed to set the readability of the selected action video material to read only, so that the action video data that the user wants to keep can be deleted or overwritten. In some embodiments, since the action video data is stored in the plurality of video data units 62 when the file creation mode M2 is performed, when the action video data of the designated area is to be read, the plurality of video data units 62 are required. It can be combined into a complete action video file. Please refer to the ninth figure, which is a schematic diagram of the process of executing the read mode. As shown in the ninth figure, the steps of executing the read mode are as follows: First, step M51 is performed to read the data management information unit of the action video data file 6 1327640

61. Acquire the location of the specified action video data stored in the video data unit 62 and the stored location. Thereafter, step M52 is performed to determine whether the video material unit 62 is found. If the video material unit 62 is not found, the step M54 is performed, and if the video data unit 62 is found, the step M53 is performed. When the video material unit 62 is found, the step M53 is performed to combine the video material unit 62. Then, step M54 is performed to determine whether the specified motion picture data of the pen has the next video data unit 62 to be combined. If there is a next video data unit 62 to be combined, step M51 is performed, and if not, step M55 is performed. When there is no next video material unit 62 to be combined or if the video material unit 62 is not found, step M55 is performed to output the specified action video data file 6 of the pen. In summary, the vehicle motion recorder and its recording method of the present invention use the attribute information of the vehicle to determine the deletion of the action video data stored in a part of the storage device, thereby generating sufficient memory space for storing new information. The action video data can prevent the recording space from being stopped due to insufficient memory space during driving, and can be continuously recorded by using a storage device having a limited memory space. In addition, the vehicle motion recorder of the present invention further has an output/input interface, and the user can use the output/input interface to add additional storage devices to increase the memory space of the storage device or copy the action video data in the storage device to one. The external storage device can also be connected to the computer through the output/input interface for data transmission or updating the program of the vehicle motion recorder. What's more, the vehicle motion recorder in this case is easy to install and disassemble, and the power supply provided by the vehicle can be used, so the user can install it himself without any additional processing work. Therefore, at the turn of the case 18 1327640

The tool action recorder and its recording method are of great industrial value and comply with various patent requirements, and apply in accordance with the law.钸, ί木 has been repaired by people who are familiar with this technology, but they are all protected as intended.

19 1327640 [Simple description of the drawings] The first figure is a block diagram of the internal architecture of the vehicle activity recorder of the preferred embodiment of the present invention. Second figure: It is a schematic diagram showing the structure of the vehicle motion recorder of the present invention applied to an exemplary vehicle interior. Figure 3 is a schematic diagram showing the main flow of a vehicle motion recorder for carrying out the preferred embodiment of the present invention.

The fourth picture: it is a schematic diagram of the process of executing the setting mode. Figure 5: It is a schematic diagram of the process of executing the file creation mode. Figure 6: It is a schematic diagram of the contents of the action video data file. Figure 7: It is a schematic diagram of the process of executing the recording mode. Figure 8: It is a schematic diagram of the process of executing the read-only setting mode. Figure IX: It is a schematic diagram of the process of executing the read mode.

20 1327640

[Main component symbol description] I : Vehicle activity recorder II : Video capture device 13 : Sensor 15 : Input device 17 : Video playback device 172 : Speaker 112 : Radio device 19 : Video output interface 3 : External display 61: Data Management Information Unit Μ 1. Setting Mode M3: Recording Mode Μ 5: Reading Mode 10: Storage Device 12: Encoder 14: Controller 16: Decoder 171: Display 111: Image Capture Device 18: Output/Entry Interface 20: Real clock 6: Action video file 62: Video data unit M2: File creation mode Μ 4: Read-only setting mode S11~S15: Process of performing the mobile action video recorder of this case

Μ1ΓΜ15: Flow of executing setting mode M21~M23: Flow of executing file creation mode M31~M36: Flow of executing recording mode M41-M42: Flow of executing read-only setting mode M51~M55: Flow of executing reading mode 21

Claims (1)

1327640 X. Patent Application Range: 1_ A vehicle motion recorder for use in a vehicle for recording action video data of the vehicle, the vehicle motion recorder comprising at least: a storage device for storing the vehicle The action video material, At least one video capture device for capturing the action video of the vehicle; an encoder for encoding the action video captured by the video capture device as the action audio and video, a sensor, a sensor for sensing the degree of sway of the vehicle as one of attribute information of the action video material; and a controller coupled to the storage device, the video capture device, the encoder, and the sensor, Based on the attribute information of the action video data, it is determined that a part of the action video data stored in the specified range in the storage device is deleted, and a memory space is generated to continuously record the new action video data. 2. The vehicle motion recorder of claim 1, wherein the controller determines to delete the stored in the storage by determining whether the swaying level sensed by the sensor is less than a swaying tolerance value. Some of the action video and audio data within the specified range of the device, and the memory space is generated to record the new action video and audio tribute. 3. The vehicle motion recorder of claim 2, wherein the controller determines that the sensation sensed by the sensor is greater than 22 1327640, the method comprises the following steps: (a) A file space is created in the storage device for storing the action video data file of the vehicle, wherein the action video data file comprises a data management information unit and a plurality of video data units, each of the audio and video materials being independent of each other and the data The management information unit includes a plurality of attribute information of the video data unit; (b) looking for a blank storage space of the video data unit, if there is no blank storage space of the video data unit, determining which one is the priority deletion according to the attribute information of the video data unit included in the data management information unit a storage space of the video data unit, and deleting at least one non-blank storage space of the video data unit; and (c) writing the action video data to the blank or the deleted storage area of the video data unit. 18. The method for recording a vehicle activity recorder as described in claim 17 further includes the steps of: (d) determining whether to stop writing the action video material; and (e) determining the video data unit to be written. Whether the storage space has been used or not, if the storage space has been used, the step of searching for the storage space of the video data unit is blank, and if the storage space is not used, the data writing step is performed. 19. The method of recording a vehicle motion recorder according to claim 17, wherein the action video data of the step (c) is encoded before being written to the blank or the deleted storage area of the video data unit. The steps. The method of recording a vehicle motion recorder according to claim 17, wherein the step (a) further includes setting a date, setting a time, setting a video format, and/or setting a sensor sense. The step of measuring the swaying tolerance of the degree of sway of the vehicle. 21. The method of recording a vehicle activity recorder as set forth in claim 17, wherein the step (a) comprises the steps of: (al) determining whether the memory space of the storage device has sufficient memory space; (a2) establishing the file space in the storage device if the memory space of the storage device is sufficient; and (a3) initializing the action of the vehicle And the video data file includes the data management information unit and the plurality of video data units, each of the video data units being independent of each other, and the data management information unit includes a plurality of attribute information of the video data unit. The method of recording a vehicle motion recorder according to claim 17, wherein the attribute information of the video data unit includes a data value of a degree of sway of the vehicle sensed by the sensor, and the action video One of the group consisting of the readability of the data, the period and time recorded by the action video material. The method for recording a vehicle motion recorder according to claim 22, wherein the step (b) further comprises the step of: determining whether the degree of sway of the vehicle sensed by the sensor is less than a sway A value is accepted to determine the storage 26 space of the at least one non-blank video data unit. 24. The method of recording the vehicle action recorder as described in claim 23 of the patent application section Μ the step further comprises the step of: touching the side of the sensor that is generally measured by the sensor is greater than the degree of swaying Equal to the swaying double value' to retain the action video material that has been stored in the specified range of the memory device. The recording method of the vehicle activity recorder according to claim 22, wherein the step (13) further comprises the step of: determining whether the action video material stored in the storage device is It is set to be the only to determine the retention of the action video data within the specified range. 26· The vehicle motion recorder described in claim 17 of the patent scope. The recorded method, wherein the step (4) is more The method includes the steps of: storing the attribute information of the video data sheet in the data management information unit.