Timing method, device and system for verifying the time credibility of multi-source fusion video

Abstract

The present invention relates to the technical field of traffic accident identification and traffic data analysis, and specifically discloses a timing method for verifying the time credibility of multi-source fusion video, including: obtaining a timing display video of a timing device; analyzing the road monitoring video obtained in advance frame by frame to obtain the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video; calculating the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video; verifying the time credibility of the road monitoring video according to the frame interval time of the road monitoring video. The present invention also discloses a timing device and system for verifying the time credibility of multi-source fusion video. The timing method for verifying the time credibility of multi-source fusion video provided by the present invention achieves the purpose of judging the time credibility of multi-source video, and the timing device has high display accuracy, wide visual range, and convenient operation.

Description

Technical Field

[0001] The present invention relates to the technical field of traffic accident identification and traffic data analysis, and in particular to a timing method for verifying the time credibility of multi-source fusion video, a timing device for verifying the time credibility of multi-source fusion video, and a timing system for verifying the time credibility of multi-source fusion video comprising the timing device for verifying the time credibility of multi-source fusion video. Background Art

[0002] During the testing, inspection, and accident reconstruction of new energy vehicles and intelligent networked vehicles, road surveillance cameras and dashcam videos from multiple different sources are usually involved. Before analyzing multi-source videos, it is necessary to first fuse the multi-source videos (play the videos synchronously). Since they come from different surveillance camera devices, the multi-source videos may have unreliable time, inconsistent frame rates, and time deviations. Analyzing the time credibility of the video, the frame interval time, and the time synchronization anchor point is one of the key prerequisites for fusing multi-source videos and then conducting testing, inspection, and accident reconstruction of new energy vehicles and intelligent networked vehicles.

[0003] Frame interval time t and frame rate f are key indicators for evaluating the temporal credibility of a video. The frame rate is the number of frames per second in a video image, and the frame interval time is the premise for determining the video frame rate. When the frame interval time in a video is a fixed value, the frame rate of the surveillance video is f=1 / t. According to the video encoding and decoding rules, the frame interval time in a video may not be a fixed value. For such videos, the identification personnel need to analyze all the frame interval times in the target period frame by frame to determine the frame rate of the surveillance video. When the frame rate of a video changes, the changing pattern of the video frame interval time must be determined to accurately judge the temporal credibility of the video.

[0004] At present, in order to judge the time credibility of the video, the monitoring equipment can be used to shoot stopwatches, clocks and other traditional timing devices for field tests, and then the running time of the timing devices in the video image can be analyzed frame by frame to determine the frame interval time and video frame rate. However, road traffic monitoring equipment is usually placed at a high position. During the on-site investigation, the identification personnel cannot safely and stably place the traditional timing equipment in front of the road traffic monitoring camera, and it is difficult to clearly shoot the pointer or digital display of the stopwatch, clock and other timing devices. At the same time, in the process of multi-source video fusion, the time anchor point needs to be found first. Traditional timing devices such as stopwatches and clocks have different degrees of time errors with Beijing time, which makes it difficult for such timing devices to provide time anchor points for multi-source videos. Summary of the invention

[0005] In view of the defects and shortcomings in the prior art, the present invention provides a timing method for verifying the time credibility of multi-source fusion video, a timing device for verifying the time credibility of multi-source fusion video, and a timing system for verifying the time credibility of multi-source fusion video including the timing device for verifying the time credibility of multi-source fusion video. The timing display logic is simpler and more effective, with high display accuracy, wide visual range, convenient operation, and low cost. At the same time, it solves the needs of new energy vehicles and intelligent networked vehicles for time credibility analysis and verification of multi-source video fusion in testing, detection, and accident reconstruction.

[0006] As a first aspect of the present invention, a timing method for verifying the time credibility of a multi-source fusion video is provided, comprising:

[0007] Step S1: Obtaining a timing display video of a timing device;

[0008] Step S2: Analyze the road monitoring video acquired in advance frame by frame to obtain the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0009] Step S3: Calculate the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0010] Step S4: verifying the time credibility of the road monitoring video according to the frame interval time of the road monitoring video.

[0011] Furthermore, the frame interval time of the road monitoring video is calculated according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video, and further includes:

[0012] After the timing display video starts playing, the timing display screen corresponding to each frame image during the playback of the road monitoring video is obtained, and the time point displayed by each timing display screen is determined, and then the time interval between the corresponding time points of adjacent frame images is used as the frame interval time of the road monitoring video, wherein the timing display video includes multiple timing display screens.

[0013] Furthermore, it also includes: obtaining timing display videos of multiple timing devices, each road monitoring video corresponds to a timing display video, taking the same time point in the multiple timing display videos as a time anchor point, and fusing the multiple road monitoring videos at the time anchor point.

[0014] As another aspect of the present invention, a timing device for verifying the time credibility of a multi-source fusion video is provided, wherein the timing device for verifying the time credibility of a multi-source fusion video comprises:

[0015] An acquisition module, used to acquire a timing display video of a timing device;

[0016] An analysis module, used to analyze the road monitoring video acquired in advance frame by frame to obtain the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0017] A calculation module, used for calculating the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0018] The verification module is used to verify the time credibility of the road monitoring video according to the frame interval time of the road monitoring video.

[0019] As another aspect of the present invention, there is provided a timing system for verifying the time credibility of a multi-source fusion video, comprising a controller, a timing device, a start key, a return key and a battery, wherein the controller is connected to the timing device, the start key and the return key, respectively, and the battery is used to power the controller, the timing device, the start key and the return key, and the controller comprises the timing device for verifying the time credibility of a multi-source fusion video as described above, wherein after the start key is pressed, the controller controls the timing device to start timing, and during the timing process of the timing device, after the return key is pressed, the controller controls the timing device to return to an initial state.

[0020] Furthermore, the timing device includes a timing display device and digital prompt areas located on both sides of the timing display device, and the timing display device includes a minute timing display device, a second timing display device and a millisecond timing display device, wherein:

[0021] The minute timing display device comprises a first LED light strip, wherein the first LED light strip comprises 10 LED lamp beads, and the display range of the minute timing display device is 0 to 9 minutes;

[0022] The second timing display device comprises a second LED light strip and a third LED light strip, the second LED light strip has 6 LED lamp beads, the third LED light strip has 10 LED lamp beads, and the display range of the second timing display device is 0 to 59 seconds;

[0023] The millisecond timing display device comprises a fourth LED light strip, a fifth LED light strip and a sixth LED light strip, each of the fourth LED light strip, the fifth LED light strip and the sixth LED light strip has 10 LED lamp beads, and the display range of the millisecond timing display device is 0 to 999 milliseconds;

[0024] The controller controls the LED lamp beads of the minute timing display device, the second timing display device and the millisecond timing display device to light up according to a set program, and the digital prompt area is used to prompt the position where the LED lamp beads are lit.

[0025] Furthermore, the positive electrode and the negative electrode of the battery are respectively connected to the voltage line and the ground line, and the controller is connected to the timing device via a signal line.

[0026] Furthermore, the initial state of the timing device is that the LED lamp beads of the minute timing display device, the second timing display device and the millisecond timing display device all light up the lamp bead where the number 0 is located, and the timing cycle of the timing device is 9 minutes, 59 seconds and 999 milliseconds.

[0027] Furthermore, after the start button is pressed, the controller generates a 1000hz analog pulse. Under the action of the analog pulse, the millisecond timing display device lights up the LED lamp beads in the sixth LED light strip in order from low to high. When the LED lamp bead where the number 9 is located in the sixth LED light strip is lit, when the next pulse arrives, all the LED lamp beads in the sixth LED light strip are extinguished, and only the LED lamp bead where the number 0 is located in the sixth LED light strip is lit. At the same time, a carry signal is given to the fifth LED light strip, and the LED lamp bead where the number 1 is located in the fifth LED light strip is lit. According to this lighting rule, the millisecond timing display device, the second timing display device, and the minute timing display device are carried step by step until a new round of timing starts after the timing cycle of the timing device is reached.

[0028] Furthermore, the controller has a wireless communication module, which includes a Wifi module, a Bluetooth module or an infrared module. The communication module on the mobile phone sends a signal to the wireless communication module, so that the controller controls two or more timing devices to start, run or reset at the same time.

[0029] The timing method for verifying the time credibility of multi-source fusion video provided by the present invention has the following advantages: the LED lamp beads in the minute timing display device, the second timing display device and the millisecond timing display device are controlled by the timing device to light up according to the set program, so as to achieve the effect of accurate timing and providing a time anchor point for the multi-source video; the display screen of the multi-source video shooting timing device is analyzed frame by frame, the frame interval time of the multi-source video can be determined, and then the frame rate of the multi-source video can be determined, so as to achieve the purpose of judging the time credibility of the multi-source video. The timing device has high display accuracy, wide visual range, convenient operation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation of the present invention.

[0031] Figure 1 A flowchart of a timing method for verifying the temporal credibility of multi-source fusion video provided by the present invention.

[0032] Figure 2 This is a structural block diagram of a timing device for verifying the temporal credibility of multi-source fusion video provided by the present invention.

[0033] Figure 3 A circuit diagram of a timing system for verifying the time credibility of multi-source fusion video provided by the present invention.

[0034] Figure 4 This is a schematic structural diagram of the dot matrix timing device provided by the present invention.

[0035] Figure 5 A schematic diagram of a scenario for obtaining timing display videos of multiple timing devices provided by the present invention.

[0036] Figure 6 This is a schematic diagram of an embodiment of a timing device display screen during the video frame-by-frame analysis process provided by the present invention. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] In this embodiment, a timing method for verifying the time credibility of multi-source fusion video is provided. Figure 1 The flowchart of the timing method for verifying the time credibility of multi-source fusion video provided by the present invention is as follows: Figure 1 As shown, the timing method for verifying the time credibility of multi-source fusion video includes:

[0041] Step S1: Obtaining a timing display video of a timing device;

[0042] Step S2: Analyze the road monitoring video acquired in advance frame by frame to obtain the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0043] Step S3: Calculate the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0044] Step S4: verifying the time credibility of the road monitoring video according to the frame interval time of the road monitoring video.

[0045] The present invention provides a timing method for verifying the time credibility of multi-source fusion video. Compared with the control of traditional pointer or digital display timer, the display logic is simpler and more effective, with high display accuracy, wide visual range, and convenient operation. Two or more dot matrix timing devices are placed on the road surface, and the road traffic monitoring camera located at a high place and far away can also capture the time display of the dot matrix timing device; two or more dot matrix timing devices 5 can be started, timed, and reset at the same time under the control of the controller through wired or wireless connection, providing a time anchor point for the fusion of two or more monitoring videos, and solving the need for time credibility analysis and verification of multi-source videos. Compared with the control of traditional digital display timer, the display logic is simpler and more effective, with high display accuracy, wide visual range, convenient operation, and low cost.

[0046] Preferably, the step of calculating the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video further includes:

[0047] After the timing display video starts playing, the timing display screen corresponding to each frame image during the playback of the road monitoring video is obtained, and the time point displayed by each timing display screen is determined, and then the time interval between the corresponding time points of adjacent frame images is used as the frame interval time of the road monitoring video, wherein the timing display video includes multiple timing display screens.

[0048] Preferably, the method further includes: acquiring timing display videos of multiple timing devices, each road monitoring video corresponds to one timing display video, taking the same time point in the multiple timing display videos as a time anchor point, and fusing the multiple road monitoring videos at the time anchor point.

[0049] As another embodiment of the present invention, a timing device for verifying the time credibility of multi-source fusion video is provided. Figure 2 As shown, the timing device for verifying the time credibility of the multi-source fusion video includes:

[0050] An acquisition module, used to acquire a timing display video of a timing device;

[0051] An analysis module, used to analyze the road monitoring video acquired in advance frame by frame to obtain the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0052] A calculation module, used for calculating the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video;

[0053] The verification module is used to verify the time credibility of the road monitoring video according to the frame interval time of the road monitoring video.

[0054] As another embodiment of the present invention, a timing system for verifying the time credibility of multi-source fusion video is provided. Figure 3As shown, the timing system for verifying the time credibility of multi-source fusion video includes a controller 4, a timing device 5, a start key 6, a return key 7 and a battery 8. The controller 4 is connected to the timing device 5, the start key 6 and the return key 7 respectively. The battery 8 is used to power the controller 4, the timing device 5, the start key 6 and the return key 7. The controller 4 includes the timing device for verifying the time credibility of multi-source fusion video as described above, wherein after the start key 6 is pressed, the controller 4 controls the timing device 5 to start timing, and during the timing process of the timing device 5, after the return key 7 is pressed, the controller 4 controls the timing device 5 to return to the initial state.

[0055] In this embodiment, the circuits of the controller 4 , the start button 6 , the reset button 7 , and the battery 8 are located on the back of the main body of the timing device 5 .

[0056] Preferably, if Figure 4 As shown, the timing device 5 includes a timing display device and digital prompt areas located on both sides of the timing display device. The timing display device includes a minute timing display device 51, a second timing display device 52 and a millisecond timing display device 53, wherein:

[0057] The minute timing display device 51 comprises a first LED light strip 511, wherein the first LED light strip 511 has 10 LED lamp beads (in decimal system), each LED lamp bead has a fixed physical and communication position, and the display range of the minute timing display device 51 is 0 to 9 minutes;

[0058] The second timing display device 52 includes a second LED light strip 521 and a third LED light strip 522. The second LED light strip 521 has 6 LED lamp beads (hexadecimal system), and the third LED light strip 522 has 10 LED lamp beads (decimal system). The display range of the second timing display device 52 is 0 to 59 seconds.

[0059] The millisecond timing display device 53 includes a fourth LED light strip 531, a fifth LED light strip 532 and a sixth LED light strip 533, each of which has 10 LED lamp beads, and the display range of the millisecond timing display device 53 is 0 to 999 milliseconds;

[0060] The controller 4 controls the LED lamp beads of the minute timing display device 51, the second timing display device 52 and the millisecond timing display device 53 to turn on and off in sequence according to the set program with a step of 1 millisecond, so as to achieve the purpose of analyzing the time credibility of the multi-source fusion accident video through accurate timing; the digital prompt area is used to prompt the position where the LED lamp beads are turned on.

[0061] Preferably, the positive electrode and the negative electrode of the battery 8 are respectively connected to the voltage line 1 and the ground line 2 to supply power to the controller 4, the start key 6, the reset key 7, the minute timing display device 51, the second timing display device 52 and the millisecond timing display device 53; the controller 4 is connected to the timing device 5 via the signal line 3. In this embodiment, the input and output pins (1-6) of the controller 4 are respectively connected to the signal lines 3 of the minute timing display device 51, the second timing display device 52 and the millisecond timing display device 53.

[0062] Preferably, the initial state of the timing device 5 is that the LED lamp beads of the minute timing display device 51, the second timing display device 52 and the millisecond timing display device 53 are all lit with the lamp bead where the number 0 is located (0 minutes 00 seconds 000 milliseconds), and the timing cycle of the timing device 5 is 9 minutes 59 seconds 999 milliseconds. The number of columns of the LED lamp beads of the minute timing display device 51 can be increased as needed to increase the timing cycle of the timing device.

[0063] Preferably, the set start-up rule is that after the start button 6 is pressed, the controller 4 generates a 1000 Hz analog pulse. Under the action of the analog pulse, the millisecond timing display device 53 lights up the LED lamp beads (units digit) in the sixth LED light strip 533 in order from low to high. When the LED lamp bead where the number 9 (units digit) in the sixth LED light strip 533 is located is lit, when the next pulse arrives, all LED lamp beads in the sixth LED light strip 533 are extinguished, and only the LED lamp bead where the number 0 in the sixth LED light strip 533 is located is lit. At the same time, a carry signal is given to the fifth LED light strip 532 (tens digit), and the LED lamp bead where the number 1 (tens digit) in the fifth LED light strip 532 is located is lit. According to this start-up rule, the millisecond timing display device 53, the second timing display device 52, and the minute timing display device 51 are carried step by step until the timing cycle of the timing device 5 (9 minutes, 59 seconds, 999 milliseconds) is reached and a new round of timing begins.

[0064] Preferably, the controller 4 has a wireless communication module, which includes a Wifi module, a Bluetooth module or an infrared module. The communication module on the mobile phone sends a signal to the wireless communication module, so that the controller 4 controls two or more timing devices 5 to start, run or reset at the same time. In this embodiment, the controller 4 can control the LED lamp beads to change the color of the light to enhance the visibility of the timing device.

[0065] like Figure 5As shown, before analyzing the time credibility of multi-source videos, firstly, the dot matrix timing device 5 is placed within the shooting range of the road traffic monitoring camera 9 or the driving recorder 10 by using a bracket, and the start button is pressed to allow the road traffic monitoring camera 9 or the driving recorder 10 to shoot the timing process of the timing device 5. After acquiring the multi-source videos, the display screen of the timing process of the timing device shot is analyzed frame by frame. Finally, the frame interval and frame rate of the multi-source video are calculated through frame-by-frame analysis of the multi-source video to determine the time credibility of the multi-source video.

[0066] Specifically, when the present invention is used to provide a time anchor point for multi-source video fusion, the dot matrix timing device 5 is placed within the shooting range of a road traffic monitoring camera 9 using a bracket, and another dot matrix timing device 5 is placed within the shooting range of a driving recorder 10 using a bracket. The two dot matrix timing devices 5 are connected via a Wifi module, and after the two dot matrix timing devices 5 are simultaneously started using a controller 4, two or more road traffic monitoring cameras and driving recorders are allowed to simultaneously shoot the dot matrix timing devices 5 connected by wire or wirelessly, and then new energy vehicles and intelligent networked vehicles are tested, detected, and accidents are reproduced, and the time when the timing devices 5 are simultaneously started is used as an anchor point to fuse multi-source videos.

[0067] like Figure 6 As shown in the figure, the multi-source video frame rate analysis process of this embodiment is as follows: the i-th frame of the multi-source video (road monitoring video), the timing device is started; the i+1-th frame, the timing device displays 0:00.033ms; the i+2-th frame, the timing device displays 0:00.067ms; the i+3-th frame, the timing device displays 0:00.100ms; the i+4-th frame, the timing device displays 0:00.133ms; ... the i+30-th frame, the timing device displays 0:01.000ms. According to the frame-by-frame analysis, the frame interval of the multi-source video is 0.0333s, and the frame rate is 30fps.

[0068] The present invention can provide a more accurate timing device. After an accident occurs, the time credibility of the road monitoring video (accident video to be analyzed) at the accident location is verified. It is necessary to go to the accident location to shoot the timing display video of the timing device, and then use the timing display video as the clock of the accident video to be analyzed to analyze the frame interval time of the accident video, so as to verify the time credibility of the road monitoring video (accident video to be analyzed).

[0069] In this embodiment, the main body of the timing device 5 is made of hard and wear-resistant materials such as wood, hard plastic, rubber, and silicone to ensure that the device has a sufficiently long service life; the controller 4 is based on a microcontroller with computing capabilities, such as an Arduino Uno module; the minute timing display device 51, the second timing display device 52, and the millisecond timing display device 53 can be implemented based on existing commercially available FPC flexible circuit board light strips or PCB hard board light strips; there are 13 input and output pins in the Arduino Uno module, and 6 of them are designated to connect the PIN lines of the minute timing display device 51, the second timing display device 52, and the millisecond timing display device 53, and 2 of them are designated to connect the PIN lines of the start key 6 and the zero key 7.

[0070] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A timing system for verifying the time credibility of multi-source fusion video, characterized in that: The invention comprises a controller (4), a timing device (5), a start key (6), a return key (7) and a battery (8), wherein the controller (4) is connected to the timing device (5), the start key (6) and the return key (7) respectively, and the battery (8) is used to supply power to the controller (4), the timing device (5), the start key (6) and the return key (7), and the controller (4) comprises a timing device for verifying the time credibility of a multi-source fusion video, and the timing device for verifying the time credibility of a multi-source fusion video comprises: An acquisition module, used to acquire a timing display video of a timing device; An analysis module, used to analyze the road monitoring video acquired in advance frame by frame to obtain the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video; A calculation module, used for calculating the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video; A verification module, used to verify the time credibility of the road monitoring video according to the frame interval time of the road monitoring video; The timing device for verifying the time credibility of the multi-source fusion video is used to implement a timing method for verifying the time credibility of the multi-source fusion video. The timing method for verifying the time credibility of the multi-source fusion video includes: Step S1: Obtaining a timing display video of a timing device; Step S2: Analyze the road monitoring video acquired in advance frame by frame to obtain the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video; Step S3: Calculate the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video; Step S4: verifying the time credibility of the road monitoring video according to the frame interval time of the road monitoring video; Wherein, after the start key (6) is pressed, the controller (4) controls the timing device (5) to start timing, and during the timing process of the timing device (5), after the return-to-zero key (7) is pressed, the controller (4) controls the timing device (5) to return to an initial state; The timing device (5) comprises a timing display device and digital prompt areas located on both sides of the timing display device, the timing display device comprises a minute timing display device (51), a second timing display device (52) and a millisecond timing display device (53), wherein: The minute timing display device (51) comprises a first LED light strip (511), wherein the first LED light strip (511) has 10 LED lamp beads, and the display range of the minute timing display device (51) is 0 to 9 minutes; The second timing display device (52) comprises a second LED light strip (521) and a third LED light strip (522), the second LED light strip (521) has 6 LED lamp beads, the third LED light strip (522) has 10 LED lamp beads, and the display range of the second timing display device (52) is 0 to 59 seconds; The millisecond timing display device (53) comprises a fourth LED light strip (531), a fifth LED light strip (532) and a sixth LED light strip (533), wherein each of the fourth LED light strip (531), the fifth LED light strip (532) and the sixth LED light strip (533) has 10 LED lamp beads, and the display range of the millisecond timing display device (53) is 0 to 999 milliseconds; The controller (4) controls the LED lamp beads of the minute timing display device (51), the second timing display device (52) and the millisecond timing display device (53) to light up according to a set program, and the digital prompt area is used to prompt the position where the LED lamp beads are lit.

2. The timing system for verifying the time credibility of multi-source fusion video according to claim 1, characterized in that: The positive electrode and the negative electrode of the battery (8) are respectively connected to the voltage line (1) and the ground line (2), and the controller (4) is connected to the timing device (5) via a signal line (3).

3. The timing system for verifying the time credibility of multi-source fusion video according to claim 1, characterized in that: The initial state of the timing device (5) is that the LED lamp beads of the minute timing display device (51), the second timing display device (52) and the millisecond timing display device (53) all light up the lamp bead where the number 0 is located, and the timing cycle of the timing device (5) is 9 minutes, 59 seconds and 999 milliseconds.

4. The timing system for verifying the time credibility of multi-source fusion video according to claim 3, characterized in that: After the start key (6) is pressed, the controller (4) generates a 1000 Hz analog pulse. Under the action of the analog pulse, the millisecond timing display device (53) sequentially lights up the LED lamp beads in the sixth LED light strip (533) in the order of numbers from low to high. When the LED lamp bead where the number 9 in the sixth LED light strip (533) is located is lit, when the next pulse arrives, all the LED lamp beads in the sixth LED light strip (533) are extinguished, and only the LED lamp bead where the number 0 in the sixth LED light strip (533) is lit. At the same time, a carry signal is given to the fifth LED light strip (532), and the LED lamp bead where the number 1 in the fifth LED light strip (532) is lit. According to this lighting rule, the millisecond timing display device (53), the second timing display device (52), and the minute timing display device (51) are carried step by step until a new round of timing is started after the timing cycle of the timing device (5) is reached.

5. The timing system for verifying the time credibility of multi-source fusion video according to claim 1, characterized in that: The controller (4) has a wireless communication module, which includes a Wifi module, a Bluetooth module or an infrared module. The communication module on the mobile phone sends a signal to the wireless communication module, so that the controller (4) controls two or more timing devices (5) to start, run or reset at the same time.

6. The timing system for verifying the time credibility of multi-source fusion video according to claim 1, characterized in that: The step of calculating the frame interval time of the road monitoring video according to the time point displayed in the timing display video corresponding to each frame image during the playback of the road monitoring video also includes: After the timing display video starts playing, the timing display screen corresponding to each frame image during the playback of the road monitoring video is obtained, and the time point displayed by each timing display screen is determined, and then the time interval between the corresponding time points of adjacent frame images is used as the frame interval time of the road monitoring video, wherein the timing display video includes multiple timing display screens.

7. The timing system for verifying the time credibility of multi-source fusion video according to claim 1, characterized in that: Also includes: The timing display videos of multiple timing devices are obtained, each road monitoring video corresponds to a timing display video, the same time point in the multiple timing display videos is used as a time anchor point, and the multiple road monitoring videos are fused at the time anchor point.

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