Multi-mode video log recorder and recording method

Abstract

The invention discloses a multi-mode video log recorder and recording method.The multi-mode video log recorder comprises a recorder shell, one end of the recorder shell is connected with a first camera through a first adjusting base, the other end of the recorder shell is connected with a second camera with a second adjusting base through a telescopic rod, and an onboard computer is installed in the recorder shell; the upper end face of the recorder shell is provided with a universal Type-C data interface, and the first camera, the second camera and the universal Type-C data interface are all electrically connected with the onboard computer. The video log recording mode is diversified, the arrangement mode of the two cameras can record working videos at multiple angles, and meanwhile, the digital processing of customized software is matched, so that valuable and meaningful multi-dimensional log data is saved to the maximum extent; data transmission and export in a wired mode and a wireless mode are realized through a universal type-c data interface and Bluetooth; the microphone and the micro loudspeaker are connected, voice interaction and intelligent talkback can be achieved based on a networking intelligent language model, and two-hand operation is liberated.

Description

Technical Field

[0001] The present invention relates to the technical field of real-time video recording devices, which are used to conveniently record the content during experiments or when working in front of an operator's computer for inspection and problem backtracking. Specifically, it relates to a multi-mode video log recorder and a recording method. Background Art

[0002] Today is the era of information and data. The generation and recording of data are indispensable in everyone's daily life and work. For example, using a single-lens reflex camera to take digital photos to record the beautiful scenery during travel, using a smartphone to record family holiday videos, using a mobile phone to scan and save unexpected paper documents, etc. During the busy work process, the recording and review of data are even more necessary. On the one hand, the work log can record the labor process for inspection and problem discovery after completion; on the other hand, it also helps to efficiently accumulate knowledge and skills continuously. Therefore, the preservation and organization of fragmented and massive data have become an important skill for relevant personnel.

[0003] However, it is not an easy thing to record work and review and organize it efficiently and neatly in a digital way, especially for people who work at a fast pace in front of a computer, such as programmers, electron microscope operation experimenters, graphic designers, computer-aided mechanical designers, etc. During the busy work process, not only do their hands need to operate keyboards and instruments, but their eyes also need to view the rapidly changing content on the screen in real time, and they can no longer conveniently use a mobile phone or other means to record efficiently. To address this pain point, the common solution currently adopted by people is to use a simple webcam or mobile phone to continuously record a video in one target direction to obtain a relatively large video file for later reference. Such a method not only has poor flexibility and redundant recorded data, making it troublesome to check and review. For example, it cannot record video data in multiple directions, and due to the large size of the recorded data, it causes problems such as difficult sharing or time-consuming export. Summary of the Invention

[0004] In view of the above technical problems, the present invention provides a multi-mode video log recorder and a recording method, which can solve the above problems.

[0005] To achieve the above technical objectives, the technical solution of the present invention is realized as follows:

[0006] A multi-mode video log recorder includes a recorder housing. One end of the recorder housing is connected with a first camera through a first adjusting seat, and the other end is connected with a second camera with a second adjusting seat through a telescopic rod. An on-board computer is installed in the recorder housing. A universal Type-C data interface is provided on the upper end surface of the recorder housing. The first camera, the second camera, and the universal Type-C data interface are all electrically connected to the on-board computer.

[0007] Further, a display screen is installed on the front of the recorder housing, and an indicator light and a sound hole are also provided on the front of the recorder housing.

[0008] Further, a microphone and a micro speaker are also provided inside the recorder housing, and both the microphone and the micro speaker are electrically connected to the on-board computer.

[0009] Further, a number of function buttons are also arranged on the upper end surface of the recorder housing, and the number of function buttons includes a function mode switching button, a power on / off button, a Bluetooth switch, and a Wi-Fi connection button.

[0010] Further, the telescopic rod includes an outer arm, an inner arm is slidably connected in the arm cavity of the outer arm, the extending end of the inner arm is connected to the adjustment seat through a first rotating shaft, the adjustment seat includes a first U-shaped bracket, and the first U-shaped bracket is connected to the second camera through a second rotating shaft.

[0011] Further, a first storage bin and a second storage bin are provided on the front of the recorder housing, one end of the telescopic rod is connected to the first storage bin through a third rotating shaft, a circular support is connected to the second storage bin through a fourth rotating shaft, and the support is connected to the first camera through a fifth rotating shaft.

[0012] Further, a threaded hole for connecting a support frame is provided at the central gravity position of the bottom of the recorder housing, and the support frame is a second U-shaped bracket or a tripod.

[0013] A multi-mode video logging method includes the following steps:

[0014] S1. Place the recorder on the top of the device to be recorded;

[0015] S2. Select a recording method: When selecting Method 1, first adjust the angle of the first camera so that the first camera points to the user of the device to be recorded, then use a Type-C data cable to establish a network connection between the recorder and the device to be recorded, and access the desktop content of the device to be recorded from the on-board computer program in the recorder through the Remote Desktop Protocol, and record the screen image and the user to be recorded; when selecting Method 2, first adjust the angle of the first camera so that the first camera points to the user of the device to be recorded, then rotate the telescopic rod out of the storage bin through the third rotating shaft, stretch the second camera to a suitable position through the inner arm, and adjust the angle of the second camera so that the second camera points to the position to be recorded on the device to be recorded, and record the content to be recorded and the user synchronously.

[0016] Further, the on-board computer is equipped with dedicated video recording software and display software, and the video recording and display software runs on a customized Linux operating system. The video logs saved by the video recording software are based on the HDF5 encoding format.

[0017] Further, in S2, when adjusting the angles of the first camera and the second camera, the images captured by the first camera and the second camera are displayed on the display screen for angle adjustment.

[0018] Advantages of the present invention: The video log recording mode of this application is diversified. With the layout of two types of cameras, the working videos from multiple angles can be recorded. At the same time, with the digital processing of the customized software, the valuable and meaningful multi-dimensional log data can be saved to the maximum extent. Through the type-c data interface and Bluetooth, data transmission and export can be achieved in both wired and wireless ways. The microphone and micro speaker are connected, and based on the networked intelligent language model, voice interaction and intelligent intercom can be realized, liberating the hands for operation. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0020] The following further details the present invention according to the drawings.

[0021] Figure 1 It is a schematic structural diagram of a multi-mode video log recorder according to an embodiment of the present invention (when the telescopic rod is retracted);

[0022] Figure 2 It is a schematic structural diagram of a multi-mode video log recorder according to an embodiment of the present invention (when the telescopic rod is extended);

[0023] Figure 3 It is a schematic structural diagram of the connection between the telescopic rod and the second camera according to an embodiment of the present invention;

[0024] Figure 4 It is a schematic structural diagram of a multi-mode video log recorder placed on a display according to an embodiment of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the second U-shaped bracket according to an embodiment of the present invention;

[0026] Figure 6It is a schematic structural diagram of the connection between a multi-mode video log recorder and a tripod according to an embodiment of the present invention;

[0027] Figure 7 It is a schematic diagram of the electrical connection between an on-board computer and various electronic components according to an embodiment of the present invention;

[0028] Figure 8 It is a schematic diagram of the data storage principle according to an embodiment of the present invention.

[0029] In the figure:

[0030] 1. Recorder housing; 2. Display screen; 3. Outer arm; 4. Camera 1; 5. Camera 2; 6. Function button; 7. Indicator light; 8. Universal Type-C data interface; 9. Sound hole; 10. Storage bin 1; 11. Rotating shaft 3; 12. Rotating shaft 2; 13. Rotating shaft 1; 14. Inner arm; 15. Tripod; 16. Monitor; 17. U-shaped bracket 2. Detailed implementation manners

[0031] The following clearly and completely describes the content of the present invention with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of the present invention.

[0032] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0033] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] As Figures 1-7 shown, according to the present invention, a multi-mode video log recorder is disclosed, which includes a recorder housing 1. One end of the recorder housing 1 is connected with a camera 1 through an adjustment seat 1, and the other end is connected with a camera 2 with an adjustment seat 2 through a telescopic rod. An on-board computer is installed in the recorder housing 1. A universal Type-C data interface 8 is arranged on the upper end surface of the recorder housing 1. The camera 1, the camera 2, and the universal Type-C data interface 8 are all electrically connected to the on-board computer.

[0035] Embodiment 1:

[0036] The recorder housing 1 of this application is processed and manufactured by using metal aluminum CNC and injection molding processes. The joints and some openings are sealed, giving it a certain dust and dirt prevention ability and maximizing the durability of the device. A display screen 2 with a size not limited to 3.5 inches is installed at the position on the left side of the center of the front panel. Preferably, it is of the OLED specification, having better brightness and contrast. The display screen 2 is used to display the customized software interface, presenting video recording information, instrument status information, etc. On the front of the recorder housing 1, there are also an indicator light 7 and a sound hole 9. The indicator light 7 is a three-stage status indicator light, and each light has three colors: red, green, and yellow, representing error, normal, and reminder. From top to bottom, they are the instrument working status indicator light, the first camera working indicator light, and the second camera working indicator light. The sound hole 9 includes a sound pickup hole and a sound broadcasting hole, combined with a microphone and a micro speaker. Users can send commands such as start and shutdown to the recorder by voice, or listen to the status information of the recorder itself through the sound pickup hole.

[0037] At the central gravity position at the bottom of the recorder housing of this application, there is a threaded hole. Through the threaded hole, a support frame can be connected. For example, through the U-shaped bracket two 17, it can be clamped on the top of the monitor to be recorded 16, and it can be placed on the table through the tripod 15.

[0038] Embodiment 2:

[0039] The first camera 4 and the second camera 5 of this application are common UVC protocol cameras. This type of camera is widely used in fields such as video recording and network communication, and is small in size and easy to integrate, compatible with a variety of operating systems or software. The cameras are connected to the on-board computer inside the recorder through flexible cables. The selected UVC cameras have the ability to replace the lens focal length, enabling the two cameras to have different recording focuses. Among them, the first camera 4 has a slightly longer focal length range of 5 - 8 mm for portrait video recording, and the second camera 5 has a slightly shorter focal length range of 3 - 5 mm for close-range wide-angle video recording.

[0040] The first camera 4 and the second camera 5 are respectively installed on the first adjusting base and the second adjusting base. The first adjusting base and the second adjusting base are aluminum alloy metal structures designed separately to adapt to the size. To maintain the strength, the structural thickness is not less than 1.5 mm. The first adjusting base is installed and fixed in the recorder housing, supporting an adjusting pointing range of not less than ±15° in both the horizontal and vertical directions (adjusted by the fourth rotating shaft and the fifth rotating shaft). The second adjusting base is installed on the telescopic rod and supports a pointing range of not less than ±45° in the horizontal direction and not less than ±90° in the vertical direction (adjusted by the first rotating shaft and the second rotating shaft). Among them, the telescopic rod includes an outer arm 3 and an inner arm 14. Both the outer arm 3 and the inner arm 14 are hollow structures, facilitating the connection of the second camera 5. At the same time, the inner arm 14 has a telescopic function. The outer arm 3 can be rotated out of the first storage bin 10 through the third rotating shaft. The first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, and the fifth rotating shaft are all damping rotating shafts.

[0041] Embodiment 3:

[0042] In this application, the model of the on-board computer is Raspberry Zero 2W, and the chip is BCM2835. It is preset with a mini HDMI interface for connecting to a display screen. The on-board computer installs the Debian arm version of the Linux open-source operating system, and the system installs the i3w window manager with low resource consumption. A customized video logging software and a log data writing algorithm are run on this system and window manager; further, the video logging software running on the on-board computer is developed based on QT in C++ language, making it have high execution efficiency and a beautiful and easy-to-use user operation experience; furthermore, the video logging software records and saves data using the architecture of the sqlite3 database combined with the HDF5 data format, realizing the fast recording and flexible saving of data.

[0043] Embodiment 4:

[0044] Taking the recording of the computer desktop content as an example, according to the actual working scenarios and conditions, there are two ways to record the computer screen by the recorder of the present application. The first way is as follows: First, adjust the angle of the first camera 4 so that the first camera 4 points to the user of the computer to be recorded. Then, use a Type-C data cable to establish a network connection between the recorder and the computer to be recorded, and access the desktop content of the computer to be recorded from the on-board computer program in the recorder through the Remote Desktop Protocol, and record the screen image and the user to be recorded. The specific process includes: connecting the device with a Type-C data cable; enabling the network sharing function through the USB data cable in Windows and sharing the network to the recorder through USB, and enabling Remote Desktop (RDP, VNC) on Windows; installing a Remote Desktop client or software interface, such as xfreerdp, on the on-board computer system of the recorder, and obtaining the screen data through the interface.

[0045] The second way is as follows: First, adjust the angle of the first camera 4 so that the first camera 4 points to the user of the computer to be recorded. Then, rotate the telescopic rod out of the storage bin through the third rotating shaft 11, stretch the second camera 5 to an appropriate position through the inner arm 14, and adjust the angle of the second camera 5 through the first rotating shaft 13 and the second rotating shaft 12 so that the second camera 5 points to the computer to be recorded of the device to be recorded, and record the position to be recorded and the user synchronously.

[0046] Two-way information is obtained through the above two recording methods. One-way information is the information obtained by the first camera 4, and the other-way information is the information obtained by the second camera 5 or the VNC screen. The two-way information together constitutes a recording time point. The continuous recording information included in the order of the time axis is a certain recording data obtained by the recorder. In this embodiment, the Figure 7 method shown is used to store and read data. Multiple sensors (cameras, microphones, etc.) on the recorder write the obtained data into the SQLite3 high-performance database built in the debian operating system running on the on-board computer in chronological order. At the same time, there is an independent transfer process on the system, which transfers the content in the database to the HDF5 format data file in chronological order and number in the form of a background service. When the user wants to query and review the recorded data, it can be obtained by logging in to the web interface file list of the on-board computer by scanning the QR code on the screen of the mobile phone recorder, or by wired USB or wireless Bluetooth.

[0047] Obviously, the above embodiments are merely examples given for clear illustration and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. A multi-mode video log recorder, characterized in that: The recorder shell (1) comprises a recorder housing (1), one end of which is connected to a camera 1 (4) via an adjustment seat 1, and the other end of which is connected to a camera 2 (5) with an adjustment seat 2 via a telescopic rod, an onboard computer is installed in the recorder housing (1), a universal Type-C data interface (8) is provided on the upper end surface of the recorder housing (1), and the camera 1 (4), the camera 2 (5) and the universal Type-C data interface (8) are all electrically connected to the onboard computer.

2. A multi-mode video log recorder according to claim 1, characterized in that: A display screen (2) is installed on the front of the recorder housing (1), and an indicator light (7) and a sound hole (9) are also provided on the front of the recorder housing (1).

3. A multi-mode video log recorder according to claim 2, characterized in that: A microphone and a micro speaker are also provided in the recorder housing (1), and both the microphone and the micro speaker are electrically connected to the onboard computer.

4. A multi-mode video log recorder according to claim 1, characterized in that: The upper end surface of the recorder housing (1) is also provided with a plurality of function buttons (6), and the plurality of function buttons (6) include a function mode switching button, a power button, a Bluetooth switch, and a wireless network connection button.

5. A multi-mode video log recorder according to claim 1, characterized in that: The telescopic rod comprises an outer arm (3), an inner arm (14) is slidably connected in an arm cavity of the outer arm (3), the protruding end of the inner arm (14) is connected to the second adjustment seat via a first rotating shaft (13), the second adjustment seat comprises a first U-shaped bracket, and the first U-shaped bracket is connected to the second camera (5) via a second rotating shaft (12).

6. A multi-mode video log recorder according to claim 5, characterized in that: The front of the recorder housing (1) is provided with a storage compartment 1 (10) and a storage compartment 2, one end of the telescopic rod is connected to the storage compartment 1 (10) via a rotating shaft 3 (11), a circular support is connected to the storage compartment 2 via a rotating shaft 4, and the support is connected to the camera 1 (4) via a rotating shaft 5.

7. The multi-mode video log recorder according to claim 1, characterized in that: A threaded hole for connecting a support frame is provided at the center of gravity of the bottom of the recorder housing (1); the support frame is a U-shaped bracket 2 (17) or a tripod (15).

8. A recording method of a multi-mode video log recorder as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1, placing the recorder on the top of the device to be recorded; S2. Select recording mode: When mode 1 is selected, first adjust the angle of the camera 1 (4) so ​​that the camera 1 (4) points to the user of the device to be recorded, then use a Type-C data cable to establish a network connection between the recorder and the device to be recorded, access the desktop content of the device to be recorded from the onboard computer program in the recorder through the remote desktop protocol, and record the screen image and the user to be recorded; When mode 2 is selected, first adjust the angle of the camera 1 (4) so ​​that the camera 1 (4) points to the user of the device to be recorded, then rotate the telescopic rod out of the storage bin through the rotating shaft 3 (11), stretch the camera 2 (5) to a suitable position through the inner arm (14), and adjust the angle of the camera 2 (5) so that the camera 2 (5) points to the position to be recorded of the device to be recorded, and record the content to be recorded and the user synchronously.

9. A multi-mode video log recording method according to claim 8, characterized in that: The onboard computer is equipped with dedicated video recording software and display software, which run on a customized Linux operating system. The video logs saved by the video recording software are based on the HDF5 encoding format.

10. A multi-mode video log recording method according to claim 9, characterized in that: In S2, when adjusting the angles of the camera 1 (4) and the camera 2 (5), the images captured by the camera 1 (4) and the camera 2 (5) are displayed on the display screen (2) to adjust the angles.

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