WO2019041227A1 - Onboard vehicle safety monitoring method, system, and terminal device - Google Patents

Abstract

An onboard vehicle safety monitoring method, a system, and a terminal device. The method comprises: encoding, by means of dual-stream technology, video data collected by a video capturing device in real time in order to obtain a high-resolution video and a low-resolution video (S101); storing the high-resolution video and the low-resolution video in the same storage device, wherein a storage duration of the high-resolution video is not greater than a storage duration of the low-resolution video (S102); and transmitting the low-resolution video to a client in real time, such that the client plays the low-resolution video in real time (S103). The onboard vehicle safety monitoring method avoids an issue in which historical videos are incomplete when examining the historical videos.

Description

 Vehicle security monitoring method, system and terminal equipment

Technical field

 [0001] This solution belongs to the field of vehicle monitoring, and particularly relates to a vehicle security monitoring method, systemization and terminal equipment.

 Background technique

 [0002] In the field of vehicle monitoring, through dual-stream technology, two-way code stream encoding of video data can be realized, one high-resolution code stream and one low-resolution code stream. With only one storage device, the high-resolution code stream is stored in the storage device, and the low-resolution code stream is used for remote network transmission for real-time monitoring. In the event of an alarm signal, for example, an overspeed alarm, a lane departure warning or a distance warning, etc., for the background monitor, not only the actual video but also the video of the previous section of the alarm, that is, the history video, is needed to understand Happening. However, the high-resolution stream takes up a large amount of storage space, and the length of the video stored in the storage device often leads to the inability to view the complete historical video.

 technical problem

 [0003] In view of this, the embodiment of the present invention provides an in-vehicle security monitoring method, system, and terminal device, so as to solve the problem that the full-length video cannot be viewed due to the length of the high-resolution video stored in the storage device in the prior art. The problem.

 Problem solution

 Technical solution

 [0004] A first aspect of the embodiments of the present disclosure provides an in-vehicle security monitoring method, including:

[0005] encoding video data actually captured by a photographing device by using a dual stream technology to obtain high-resolution video and low-resolution video;

 [0006] storing the high resolution video and the low resolution video in the same storage device, and making the storage length of the high resolution video not greater than the storage length of the low resolution video;

 And transmitting the low resolution video to the client, so that the client actually plays the low resolution video.

[0008] In a first possible implementation manner of the first aspect, the method further includes: [0009] detecting the presence of an alarm signal;

 [0010] receiving a first historical video viewing instruction input by the user, where the first historical video viewing instruction includes a historical video viewing instruction in a preset interval before the alarm signal is generated;

[0011] transmitting, by the client, the historical video in the preset pre-intersection to the client, so that the client plays the historical video.

 [0012] In conjunction with the first possible implementation manner of the first aspect, in a second possible implementation manner, the historical video in the preset inter-segment segment is transmitted to the client by the alarm signal, To enable the client to play the historical video, specifically:

[0013] acquiring the number of channels, where the number of channels is the number of videos actually collected by the photographing device;

[0014] if the number of the channels is multiple, transmitting, by the alarm signal, multi-channel low-resolution video in a preset pre-intersection to the client, so that the client plays multi-channel low-resolution Rate history video

[0015] if the number of the channels is one, transmitting, by the alarm signal, a single-channel high-resolution video in a preset interval to the client, so that the client plays a single-channel high-resolution Rate history video

[0016] In combination with the second possible implementation of the first aspect, in a third possible implementation, the multi-channel low-resolution video in the preset pre-intersection is transmitted to the client by the alarm signal After the client is configured to play the multi-channel low-resolution history video, the method further includes:

 [0017] receiving a second historical video viewing instruction input by the user, where the second historical video viewing instruction includes a high resolution historical video viewing instruction of a certain channel in the preset interval before the alarm signal is generated;

 [0018] transmitting, by the client, high resolution video of the corresponding channel in the pre-set interval before the alarm signal is generated and playing.

 [0019] In a fourth possible implementation manner of the first aspect, the storage capacity of the storage device is less than a preset value.

Deletes the preset low-resolution video in the storage device and deletes the high-resolution video of the preset storage capacity in the storage device.

 [0020] In a fifth possible implementation manner of the first aspect, the storing the length of the high-resolution video is not longer than the storage length of the low-resolution video, and specifically includes:

[0021] respectively setting parameters of the high resolution video and parameters of the low resolution video; wherein, the parameters The number includes resolution, image quality, and frame rate;

[0022] calculating a high resolution video code rate MM and a low resolution video code rate SM according to the parameters of the high resolution video and the parameters of the low resolution video;

Obtaining a storable capacity T of the storage device, and causing the high resolution video code rate ΜΜ, the low resolution video code rate SM, and the storable capacity Τ to satisfy a relationship:

[0024] Χ /ΜΜ < (Τ-Χ) /SM;

[0025] wherein X is the occupied space of the high resolution video.

 [0026] A second aspect of the embodiments of the present disclosure provides an in-vehicle security monitoring device, including:

 [0027] a video encoding module, configured to encode video data collected by the photographing device by using a dual stream technology to obtain a high resolution video and a low resolution video;

[0028] a video storage module, configured to store the high resolution video and the low resolution video in a same storage device, and make the storage length of the high resolution video not greater than the low resolution video Storage length;

 [0029] a video transmission module, configured to transmit the low resolution video to the client, so that the client actually plays the low resolution video.

[0030] In a first possible implementation manner of the second aspect, the device further includes:

[0031] a detecting module, configured to detect the presence of an alarm signal;

 [0032] a first instruction receiving module, configured to receive a first historical video viewing instruction input by the user, where the first historical video viewing instruction includes a historical video viewing instruction preset before the alarm signal is generated;

And a historical video transmission module, configured to transmit, by the client, the historical video in the preset preset period to the client, so that the client plays the historical video.

With reference to the first possible implementation of the second aspect, in a second possible implementation, the historical video transmission module specifically includes:

[0035] a channel number obtaining submodule, configured to acquire a number of channels, where the number of channels is a quantity of video actually collected by the photographing device;

[0036] a first historical video transmission sub-module, configured to: if the number of the channels is multiple, transmit the low-resolution video of the preset time before the alarm signal generation to the client, so that the client Play multi-channel low-resolution history video at the end; [0037] a second historical video transmission sub-module, configured to: if the number of the channels is one, transmit a high-resolution video of the preset time before the alarm signal generation to the client, so that the client Play a single-channel high-resolution historical video.

 [0038] In conjunction with the second possible implementation of the second aspect, in a third possible implementation, the first historical video transmission sub-module is further configured to:

And receiving a second historical video viewing instruction input by the user, where the second historical video viewing instruction includes a high resolution historical video viewing instruction of a certain channel in the preset interval before the alarm signal is generated;

[0040] transmitting, by the client, high resolution video of the corresponding channel in the pre-set interval before the alarm signal is generated and playing.

 [0041] In a fourth possible implementation manner of the second aspect, the device further includes:

 [0042] The deleting module is configured to delete the low-resolution video preset in the storage device after the storage capacity of the storage device is less than a preset value, and delete the high-resolution video of the preset storage capacity in the storage device.

[0043] In a fifth possible implementation manner of the second aspect, the storing the length of the high-resolution video is not greater than the storage length of the low-resolution video, and specifically includes:

[0044] setting parameters of the high resolution video and parameters of the low resolution video respectively; wherein the parameters include resolution, image quality, and frame rate;

[0045] calculating a high resolution video bit rate MM and a low resolution video bit rate SM according to parameters of the high resolution video and parameters of the low resolution video;

Obtaining a storable capacity T of the storage device, and causing the high resolution video code rate ΜΜ, the low resolution video code rate SM, and the storable capacity Τ to satisfy a relationship:

Χ/ΜΜ< (Τ-Χ) /SM;

[0048] wherein X is a occupied space of the high resolution video.

 [0049] A third aspect of the embodiments of the present invention provides an in-vehicle security monitoring system, including the in-vehicle security monitoring device according to the second aspect of the embodiment.

[0050] A third aspect of the embodiments of the present disclosure provides an in-vehicle security monitoring terminal device, including a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein The processor executes the computer program to implement the steps of the method as described in the first aspect of the embodiment. [0051] A fourth aspect of the embodiments of the present disclosure provides a computer readable storage medium, where the computer readable storage medium stores a computer program, and the computer program is executed by a processor, and is implemented as the first embodiment of the present solution. Aspects of the method.

 Advantageous effects of the invention

 Beneficial effect

 [0052] The beneficial effects of the solution compared with the prior art are: The embodiment of the solution obtains high-resolution video and low-resolution video by encoding video data, and stores high-resolution video and low-resolution video in In the same storage device, and the storage length of the high-resolution video is not greater than the storage length of the low-resolution video, the low-resolution video is transmitted to the client, and when the historical video needs to be viewed, the high-resolution is selected as needed. Video or low-resolution video, so as to avoid the problem of not being able to view the full history video due to the length of the high-resolution video storage. Since the storage length of high-resolution video is not longer than that of low-resolution video storage, low-resolution historical video can still be viewed when the high-resolution history video is incomplete. Moreover, in the case of limited network bandwidth, multi-channel high-resolution historical video is difficult to transmit, and multi-channel low-resolution historical video can be selected to be transmitted, thereby realizing smooth playback of historical video.

 Brief description of the drawing

 DRAWINGS

 [0053] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description are merely Some embodiments of the present solution can be obtained by those skilled in the art from other drawings without any inventive labor.

1 is a flowchart of implementing an in-vehicle security monitoring method according to Embodiment 1 of the present solution;

2 is a flowchart of an implementation of a vehicle security monitoring method provided by Embodiment 2 of the present solution;

3 is a flowchart of a specific implementation manner of step S203 provided in Embodiment 2 of the present solution;

4 is a structural block diagram of an in-vehicle security monitoring device provided in Embodiment 3 of the present solution;

5 is a schematic diagram of an in-vehicle security monitoring terminal device provided in Embodiment 4 of the present solution. Embodiments of the invention

 [0059] In the following description, for the purposes of illustration and description However, it will be apparent to those skilled in the art that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention.

 [0060] In order to explain the present technical solution, the following description will be made by way of specific embodiments.

 [0061] In the networked video surveillance, after the analog audio and video signals are imaged, acquired, and encoded, the digital audio and video streams transmitted on the network are called code streams. The dual stream is to encode the same video source into two streams, which are implemented by separately encoding the two formats on the encoding end.

 Referring to FIG. 1, FIG. 1 is a flowchart of implementing an in-vehicle security monitoring method according to Embodiment 1 of the present solution, where the method includes:

 [0063] Step S101: The video data collected by the photographing device is encoded by the dual stream technology to obtain a high resolution video and a low resolution video.

 [0064] In the embodiment of the present solution, the photographing apparatus includes a device having a camera. The shooting device can have multiple cameras, each camera captures different scenes, one camera captures one channel, and multiple cameras capture multiple videos. For example, if N cameras are shooting video, the number of channels is N, where N is a positive integer. Through the dual stream technology, the video captured by each camera is encoded into two streams, one for high resolution video and the other for low resolution video.

 [0065] Step S102, storing the high resolution video and the low resolution video in the same storage device, and making the storage length of the high resolution video not greater than the storage of the low resolution video. long.

 [0066] In the embodiment of the present solution, the high-resolution video and the low-resolution video are stored in the same storage device, and the storage length of the high-resolution video is not greater than the storage length of the low-resolution video to ensure In the case of limited storage space, video storage is realized for a longer period of time. Even if the high-resolution video history data is overwritten, the historical data of the low-resolution video can be viewed.

 [0067] The storage device is a hard disk. Since the hard disk has the advantages of fast reading and writing speed, large bandwidth, and large storage capacity, the high-resolution video and the low-resolution video are usually stored in the hard disk.

[0068] Step S103, the low-resolution video is transmitted to the client, so that the client is broadcasted. Put the low resolution video.

 [0069] In the embodiment of the solution, since the low-resolution video code rate is small, when the network bandwidth is limited, the multi-channel low-resolution video can still be transmitted at the same time, so the low-resolution video is transmitted to the client. End, to achieve smooth playback of the video. Clients include, but are not limited to, mobile phones, computers, and ipads.

 [0070] The embodiment of the present solution obtains high-resolution video and low-resolution video by encoding video data, and stores high-resolution video and low-resolution video in the same storage device, and the storage of the high-resolution video is long. No more than the low resolution storage length, the low resolution video is transmitted to the client. After you need to view the historical video, select high resolution video or low resolution video as needed to avoid the need to view the history. Video 吋, because the high-resolution video storage 吋 length can not view the full history video, because the high-resolution video storage length is not greater than the low-resolution video storage length, the high-resolution historical video is not complete, Still can view low resolution history videos. Example 2

 [0071] Please refer to FIG. 2, which is a flowchart of an implementation of a vehicle security monitoring method provided in Embodiment 2 of the present solution. As shown in the figure, the method further includes:

[0072] Step S201, detecting the presence of an alarm signal.

 [0073] In the embodiment of the present solution, when the vehicle is in an overspeed, lane departure, etc., a corresponding alarm signal is generated, and the alarm signal is transmitted to the server, and then transmitted to the client by the server. The client sends a corresponding operation instruction to the server according to the alarm signal, and the server sends the operation instruction to the control module of the vehicle to control the vehicle to perform the corresponding operation. If an alarm signal is detected, the client automatically plays the actual video for monitoring by the background monitor. The real video is the low resolution video transmitted in step S103. Among them, the real video can be multi-channel video, and the multi-channel video is displayed on one display interface. In other embodiments, the real video may also be a single channel video.

 [0074] Step S202: Receive a first historical video viewing instruction input by the user, where the first historical video viewing instruction includes a historical video viewing instruction in the preset interval before the alarm signal is generated.

 [0075] In the embodiment of the present solution, the background monitoring personnel determines whether the historical video data needs to be viewed according to the importance degree of the alarm signal. If the historical video data needs to be viewed, the first historical video viewing instruction is input, and the mouse may be The first historical video viewing command is input by the keyboard or by touching the client touch screen.

[0076] wherein, the first historical video viewing instruction includes a historical video viewing instruction within the preset interval before the alarm signal is generated, for example, viewing a historical video within 5 minutes before the alarm signal is generated. The default interval can be According to the interval that needs to be set in advance, for example, the default setting is 5 minutes, and the background monitor can also input the first historical video to view the command and customize the settings.

[0077] Step S203: Transmit the historical video in the preset segment before the alarm signal generation to the client, so that the client plays the historical video.

[0078] In the embodiment of the present solution, after receiving the first historical video viewing instruction input by the user, the corresponding historical video is transmitted to the client, and played on the client, so that the background monitoring personnel can view the historical video.

[0079] After detecting the alarm signal, the embodiment of the solution transmits the corresponding historical video to the client by receiving the first historical video viewing instruction, so that the client can play the real video, and the peer can play the historical video. .

 [0080] Optionally, referring to FIG. 3, the specific implementation manner of step S203 is:

 [0081] Step S301: Obtain a number of channels, where the number of channels is the number of videos actually collected by the photographing device.

[0082] Step S302: Determine whether the number of the channels is multiple. If the number of the channels is multiple, step S303 is performed. If the number of the channels is one, step S304 is performed.

 [0083] Step S303: The multi-channel low-resolution video in the preset segment is transmitted to the client before the alarm signal is generated, so that the client plays the multi-channel low-resolution history video.

 [0084] Step S304: transmitting, by the client, a single-channel high-resolution video in the preset interval before the alarm signal is generated, so that the client plays a single-channel high-resolution historical video.

[0085] In the embodiment of the present solution, the number of channels is the number of videos actually collected by the photographing device. The transmission of low-resolution video does not require high network bandwidth. In the case of limited network bandwidth, multi-channel low-resolution video can still be transmitted simultaneously, while high-resolution video transmission requires higher network bandwidth. In the case of limited bandwidth, if you transmit multi-channel high-resolution historical video at the same time, the video playback will not be smooth. For the above reasons, in multi-channel 吋, multi-channel low-resolution historical video is transmitted to the client, and in single-channel 单, single-channel high-resolution historical video is transmitted to the client. For example, if four cameras are installed in different positions of the vehicle and the video data is collected by four cameras, the number of channels is 4. In this case, since the transmission of low-resolution video does not require high network bandwidth, Simultaneously transmit 4 low-resolution historical videos, then transfer 4 low-resolution historical videos to the client. If only one camera is installed on the vehicle and the video data is collected by one camera, the number of channels is 1. In this case, a high resolution historical video is transmitted to the client. According to the number of channels, it is automatically selected to transmit low-resolution historical video or high-resolution historical video, so that the smoothness and clarity of video playback can be achieved. In the case of limited network bandwidth, smooth video playback can still be achieved.

 [0086] Further, after the step S303, the method further includes: receiving a second historical video viewing instruction input by the user, where the second historical video viewing instruction includes one of the preset segments before the alarm signal is generated. a high resolution historical video viewing command of the channel; transmitting the high resolution video of the corresponding channel in the preset preset segment to the client by the alarm signal, so that the client plays the high resolution video .

 [0087] In the embodiment of the present solution, the multi-channel low-resolution historical video is displayed on the display interface of the client. If the background monitor needs to view the high-resolution historical video of a certain channel, the background monitoring personnel inputs the input on the client. The second historical video viewing instruction may input a second historical video viewing instruction through a mouse, a keyboard or a touch client touch screen, and transmit the high-definition video of the corresponding channel to the client according to the second historical video viewing instruction, for the background monitoring personnel View. For example, the display interface of the multi-channel low-resolution historical video displays 4 channels of video. If the background monitor needs to view the high-resolution historical video 5 minutes before the channel 2 alarm, the background monitor selects channel 2, and Select the historical video 5 minutes before the alarm. After receiving the instruction, the corresponding high-resolution historical video is transmitted to the client, so that the client plays the high-resolution historical video. The embodiment of the solution can realize that a plurality of channels exist, and a high-resolution historical video of a certain channel can be viewed.

 [0088] Optionally, the method further includes: deleting, by the storage device, a storage capacity that is less than a preset value, deleting a preset low-resolution video in the storage device, and deleting a high-resolution of the preset storage capacity in the storage device. Rate video

[0089] In the embodiment of the present invention, when the storage space is insufficient, the low-resolution video is covered by the 吋 length, that is, the low-resolution video of the preset length is deleted at a time, for example, the video length of 24 hours is deleted at a time. In the case of insufficient storage space, high-resolution video is covered by storage capacity, which is to delete high-resolution video of preset storage capacity at a time, for example, to delete high-resolution video of 1G capacity at a time. Low-resolution video and high-resolution video use two different coverage methods to achieve independent management of data coverage for both video

[0090] Optionally, the storage length of the high resolution video is not greater than the storage of the low resolution video. Long, specifically includes:

 And [0091] setting parameters of the high resolution video and parameters of the low resolution video respectively; wherein the parameters include resolution, image quality, and frame rate;

[0092] calculating a high resolution video code rate MM and a low resolution video code rate SM according to parameters of the high resolution video and parameters of the low resolution video;

Obtaining a storable capacity T of the storage device, and causing the high resolution video code rate ΜΜ, the low resolution video code rate SM, and the storable capacity Τ to satisfy a relationship:

009/ΜΜ< (Τ-Χ) /SM;

[0095] wherein X is the high-resolution video occupying space.

 [0096] In the embodiment of the present scheme, after adjusting the resolution, image quality and frame rate of the high-resolution video and the low-resolution video, the storage space of the high-resolution video and the low-resolution video can be automatically allocated. The principle of allocation is: Ensure that the high-resolution storage length is not greater than the low-resolution storage length. After setting the resolution, image quality and frame of the high-resolution video and the low-resolution video respectively, the bit rate of the high-resolution video and the bit rate of the low-resolution video can be calculated, and the code rate is occupied by the video between the units. size of space. Let τ be the storable space of the storage device, X be the high-resolution video space, MM is the code rate of the high-resolution video, SM is the code rate of the high-resolution video, then X/MM is the storage of the high-resolution video.吋 Long, (TX) /SM is the storage length of low-resolution video, high-resolution storage 吋 long and low-resolution storage 吋 long to meet the above relationship:

 X/MM< (T-X) /SM.

 [0098] After the video data collected by the real device is encoded, since the code rate is dynamically changed, the video data that has been written to the storage device can be judged to be long and the storage space occupied, and the remaining storage space needs to be re-created. The allocation, allocation principle is such that the storage length of the high-resolution video is not greater than the storage length of the low-resolution video.

 It should be understood that the size of the serial number of each step in the foregoing embodiment does not mean the order of execution sequence, and the execution order of each process should be determined by its function and internal logic, and should not be constituted by the implementation process of the embodiment of the present solution. Any restrictions.

 Embodiment 3

Please refer to FIG. 4. FIG. 4 is a structural block diagram of an in-vehicle security monitoring apparatus according to Embodiment 3 of the present solution. The apparatus includes: a video encoding module 401, a video storage module 402, and a video transmission module 403. [0102] The video encoding module 401 is configured to encode video data collected by the photographing device by using a dual stream technology to obtain high-resolution video and low-resolution video.

[0103] The video storage module 402 is configured to store the high resolution video and the low resolution video in the same storage device, where the storage length of the high resolution video is not greater than the low The resolution video is stored for a long time.

 [0104] The video transmission module 403 is configured to transmit the low resolution video to the client, so that the client actually plays the low resolution video.

[0105] Optionally, the device further includes a detection module, a first instruction receiving module, and a historical video transmission module.

[0106] The detecting module is configured to detect the presence of an alarm signal.

 [0107] The first instruction receiving module is configured to receive a first historical video viewing instruction input by the user, where the first historical video viewing instruction includes a historical video viewing instruction preset before the alarm signal is generated.

 [0108] The historical video transmission module is configured to transmit a history video in the preset preset period to the client after the alarm signal is generated, so that the client plays the historical video.

 [0109] Further, the historical video transmission module specifically includes a channel number acquisition submodule, a first history video transmission submodule, and a second history video transmission submodule.

 [0110] The channel number obtaining submodule is configured to acquire the number of channels, where the number of channels is the number of videos actually collected by the photographing device.

 [0111] a first historical video transmission submodule, configured to: if the number of the channels is multiple, transmit the low resolution video of the preset time before the alarm signal generation to the client, so that the client Play multi-channel low-resolution history video.

 [0112] a second historical video transmission sub-module, configured to: if the number of the channels is one, transmit a high-resolution video of the preset time before the alarm signal generation to the client, so that the client Play a single-channel high-resolution historical video.

 [0113] Further, the first historical video transmission submodule is further configured to:

 [0114] receiving a second historical video viewing instruction input by the user, where the second historical video viewing instruction includes a high resolution historical video viewing instruction of a certain channel in the preset interval before the alarm signal is generated;

[0115] transmitting, by the alarm signal, a high-resolution video of a corresponding channel in a preset pre-intersection to the client, so that the client plays the high-resolution historical video. [0116] Optionally, the device further includes: a deleting module, where the storage capacity of the storage device is less than a preset value, deleting a preset low-resolution video in the storage device, and deleting a preset in the storage device High resolution video of storage capacity.

 [0117] Optionally, the storage length of the high-resolution video is not greater than the storage length of the low-resolution video, and specifically includes: separately setting parameters of the high-resolution video and the low-resolution video a parameter, wherein the parameter includes a resolution, an image quality, and a frame rate; and the high-resolution video code rate MM and the low-resolution video are respectively calculated according to the parameter of the high-resolution video and the parameter of the low-resolution video. a code rate SM; obtaining a storable capacity T of the storage device; the high resolution video code rate MM, the low resolution video code rate SM, and the storable capacity T satisfying a relationship:

 Χ/ΜΜ< (Τ - Χ) /SM;

 [0119] wherein X is the high resolution video footprint.

 Embodiment 4

 An in-vehicle security monitoring system includes the in-vehicle security monitoring device according to the third embodiment of the present invention, and has the beneficial effects of the in-vehicle security monitoring device according to the third embodiment of the present invention.

Embodiment 5

 [0123] FIG. 5 is a schematic diagram of five examples of implementing the vehicle security monitoring terminal device in the implementation of the solution. As shown in FIG. 5, the in-vehicle security monitoring terminal device 5 of this embodiment includes: a processor 50, a memory 51, and a computer program 52 stored in the memory 51 and operable on the processor 50. The processor 50 executes the computer program 52 to implement the steps in the above embodiments of the respective vehicle security monitoring methods, such as steps S101 to S103 shown in FIG. Alternatively, the processor 50 executes the computer program 52 to implement the functions of the modules in the above embodiments, such as the functions of the modules 401 to 403 shown in FIG.

 [0124] Illustratively, the computer program 52 may be divided into one or more modules, the one or more modules being stored in the memory 51 and executed by the processor 50 to complete the present Program. The one or more modules/units may be a series of computer program instructions that are capable of performing a particular function, and are used to describe the execution of the computer program 52 in the in-vehicle security monitoring terminal device 5. For example, the computer program 52 can be divided into a video encoding module, a video storage module, and a video transmission module. The specific functions of each module are as follows:

[0125] the video encoding module is configured to compile video data collected by the photographing device by using dual code stream technology. The code gets high resolution video and low resolution video.

[0126] The video storage module is configured to store the high resolution video and the low resolution video in a same storage device; wherein, the storage length of the high resolution video is not greater than the low resolution The storage of video is long.

 [0127] The video transmission module is configured to transmit the low resolution video to the client, so that the client actually plays the low resolution video.

 [0128] The in-vehicle security monitoring terminal device 5 may be a computing device such as a desktop computer, a notebook, a palmtop computer, and a cloud server. The in-vehicle security monitoring terminal device may include, but is not limited to, the processor 50 and the memory 51. It will be understood by those skilled in the art that FIG. 5 is only an example of the vehicle security monitoring terminal device 5, and does not constitute a limitation on the vehicle security monitoring terminal device 5, and may include more or less components than those illustrated, or may combine some components. , or different components, for example, the in-vehicle security monitoring terminal device may further include an input and output device, a network access device, a bus, and the like.

 The processor 50 may be a central processing unit (CPU), or may be another general-purpose processor, a digital signal processor (DSP), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-to-use programmable gate array

 (Field-Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor or any conventional processor or the like.

 [0130] The memory 51 may be an internal storage unit of the in-vehicle security monitoring terminal device 5, such as a hard disk or a memory of the in-vehicle security monitoring terminal device 5. The memory 51 may also be an external storage device of the in-vehicle security monitoring terminal device 5, for example, a plug-in hard disk provided on the in-vehicle security monitoring terminal device 5, a smart memory card (SMC), and a secure digital device. (Secure Digital, SD) card, flash card, etc. Further, the memory 51 may also include both an internal storage unit of the in-vehicle security monitoring terminal device 5 and an external storage device. The memory 51 is used to store the computer program and other programs and data required by the in-vehicle security monitoring terminal device. The memory 51 can also be used to temporarily store data that has been output or is about to be output.

[0131] It will be clearly understood by those skilled in the art that, for convenience and brevity of description, only the division of each functional unit and module described above is exemplified. In practical applications, the above work may be performed as needed. The allocation can be done by different functional units and modules, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit, and the integrated unit may be implemented by hardware. Formal implementation can also be implemented in the form of software functional units. In addition, the specific names of the functional units and modules are only for the purpose of distinguishing from each other, and are not intended to limit the scope of protection of the present application. For the specific working process of the unit and the module in the foregoing system, refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

 [0132] In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed or described in the specific embodiments may be referred to the related descriptions of other embodiments.

 [0133] Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. The skilled person can use different methods for each particular application to implement the described functionality, but such implementation should not be considered beyond the scope of the present scheme.

 [0134] In the embodiments provided by the present solution, it should be understood that the disclosed device/terminal device and method may be implemented in other manners. For example, the device/terminal device embodiment described above is merely illustrative. For example, the division of the module or unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units. Or components may be combined or integrated into another system, or some features may be omitted or not implemented. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in electrical, mechanical or other form.

 [0135] The unit described as a separate component may or may not be physically distributed, and the component displayed as a unit may or may not be a physical unit, that is, may be located in one place, or may be distributed to multiple On the network unit. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

[0136] In addition, each functional unit in each embodiment of the present solution may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

 [0137] The integrated module/unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the solution implements all or part of the processes in the foregoing embodiments, and may also be completed by a computer program to instruct related hardware. The computer program may be stored in a computer readable storage medium. After the program is executed by the processor, the steps of the various method embodiments described above can be implemented. . Wherein, the computer program comprises computer program code, and the computer program code may be in the form of source code, object code form, executable file or some intermediate form. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a removable hard disk, a magnetic disk, an optical disk, a computer memory, a Read-Only Memory (ROM). , Random Access Memory (RAM), electrical carrier signals, telecommunications signals, and software distribution media. It should be noted that the content contained in the computer readable medium may be appropriately increased or decreased according to the requirements of legislation and patent practice in a jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, computer readable media Does not include electrical carrier signals and telecommunication signals.

 The above-mentioned embodiments are only used to explain the technical solutions of the present solution, and are not limited thereto; although the present solution has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced; and the modifications or substitutions do not deviate from the spirit and scope of the technical solutions of the embodiments of the present embodiments. It should be included in the scope of protection of this program.

Claims

Claim  [Claim 1] An in-vehicle security monitoring method, comprising:  The video data collected by the photographing device is encoded by the dual stream technology to obtain high resolution video and low resolution video;  Storing the high resolution video and the low resolution video in the same storage device, and making the storage length of the high resolution video not greater than the storage length of the low resolution video;  Transmitting the low resolution video to the client such that the client actually plays the low resolution video.  [Claim 2] The vehicle security monitoring method according to claim 1, wherein the method further comprises:  An alarm signal is detected;  Receiving a first historical video viewing instruction input by the user, where the first historical video viewing instruction includes a historical video viewing instruction in a preset interval before the alarm signal is generated; and the preset signal is generated before the alarm signal is generated The historical video within the segment is transmitted to the client to cause the client to play the historical video. [Claim 3] The in-vehicle security monitoring method according to claim 2, wherein the historical video in the preset interval before the generation of the alarm signal is transmitted to the client, so that the The client plays the historical video, which specifically includes:  Obtaining a number of channels, where the number of channels is the number of videos actually collected by the photographing device; if the number of the channels is multiple, the alarm signal is generated to generate multi-channel low-resolution video transmission in a preset interval Going to the client, so that the client plays a multi-channel low-resolution history video;  If the number of channels is one, a single channel high resolution video within the pre-set interval is generated by the alarm signal to the client, so that the client plays a single channel high resolution history video. [Claim 4] The vehicle security monitoring method according to claim 3, wherein the multi-channel low-resolution video in the preset segment is transmitted to the client before the alarm signal is generated After the client is configured to play the multi-channel low-resolution history video, the method further includes:  Receiving a second historical video viewing instruction input by the user, where the second historical video viewing instruction includes a high resolution historical video viewing instruction of a certain channel in the preset interval before the alarm signal is generated;  Transmitting the high resolution video of the corresponding channel in the pre-set interval to the client by the alarm signal, so that the client plays the high resolution history video.  [Claim 5] The vehicle security monitoring method according to claim 1, wherein the method further comprises:  After the storage capacity of the storage device is less than a preset value, the low-resolution video of the preset length in the storage device is deleted, and the high-resolution video of the preset storage capacity in the storage device is deleted.  [Claim 6] The vehicle security monitoring method according to claim 1, wherein the storage length of the high resolution video is not greater than the storage length of the low resolution video, specifically including Setting parameters of the high resolution video and parameters of the low resolution video respectively; wherein the parameters include resolution, image quality, and frame rate;  Calculating a high resolution video bit rate MM and a low resolution video bit rate SM according to parameters of the high resolution video and parameters of the low resolution video;  Obtaining a storable capacity T of the storage device, and causing the high resolution video code rate ΜΜ, the low resolution video bit rate SM, and the storable capacity Τ to satisfy a relationship:  Χ/ΜΜ< (Τ-Χ) /SM;  Where X is the occupied space of the high resolution video. [Claim 7] An in-vehicle security monitoring device, comprising:  a video encoding module, configured to encode, by using a dual stream technology, video data collected by a shooting device to obtain high-resolution video and low-resolution video; a video storage module, configured to store the high resolution video and the low resolution video in a same storage device; and make a storage length of the high resolution video not greater than a storage of the low resolution video long; And a video transmission module, configured to transmit the low resolution video to the client, so that the client actually plays the low resolution video. The device of claim 7, wherein the device further comprises:  a detecting module, configured to detect the presence of an alarm signal;  a first instruction receiving module, configured to receive a first historical video viewing instruction input by the user, where the first historical video viewing instruction includes a historical video viewing instruction in a preset interval before the alarm signal is generated;  And a historical video transmission module, configured to transmit a historical video in the preset preset period to the client, so that the client plays the historical video. [Claim 9] The vehicle security monitoring device according to claim 8, wherein the historical video transmission module specifically includes:  a channel number obtaining sub-module, configured to acquire the number of channels, where the number of channels is the number of videos actually collected by the photographing device;  a first historical video transmission submodule, configured to: if the number of the channels is multiple, transmit, by the alarm signal, a multi-channel low-resolution video in a preset interval to the client, so that the The client plays multi-channel low-resolution history video;  a second historical video transmission sub-module, configured to transmit, when the number of the channels is one, a single-channel high-resolution video in a preset interval before the alarm signal is generated to the client, so that the client Play a single-channel high-resolution historical video. [Claim 10] The vehicle-mounted security monitoring device of claim 9, wherein the first historical video transmission sub-module is further configured to:  Receiving a second historical video viewing instruction input by the user, where the second historical video viewing instruction includes a high resolution historical video viewing instruction of a certain channel in the preset interval before the alarm signal is generated;  Transmitting, by the alarm signal, a high resolution video of a corresponding channel in a pre-set interval to the client, so that the client plays the high resolution history video. [Claim 11] The vehicle-mounted security monitoring device according to claim 7, wherein the device further includes Includes: The deletion module is configured to delete the low-resolution video of the preset length in the storage device, and delete the high-resolution video of the preset storage capacity in the storage device. The vehicle-mounted security monitoring device according to claim 7, wherein the storage length of the high-resolution video is not greater than the storage length of the low-resolution video, and specifically includes: separately setting the high-resolution video Parameters and parameters of the low resolution video; wherein the parameters include resolution, image quality, and frame rate; Calculating a high resolution video bit rate MM and a low resolution video bit rate SM according to parameters of the high resolution video and parameters of the low resolution video; Obtaining a storable capacity of the storage device T; The high resolution video code rate MM, the low resolution video bit rate SM, and the storable capacity T satisfy the relationship:  Χ/ΜΜ< (Τ - Χ) /SM; Where X is the high resolution video footprint. An in-vehicle security monitoring system, comprising the in-vehicle security monitoring device according to any one of claims 7-12. An in-vehicle security monitoring terminal device includes a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein the processor executes the computer program to implement the right The steps of any of the methods of any of 1 to 6. A computer readable storage medium storing a computer program, wherein the computer program is executed by a processor to implement the steps of the method of any one of claims 1 to 6.