WO2022126714A1 - Système en ligne de dispositif vidéo monté sur véhicule et procédé de débogage à distance - Google Patents

Système en ligne de dispositif vidéo monté sur véhicule et procédé de débogage à distance Download PDF

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Publication number
WO2022126714A1
WO2022126714A1 PCT/CN2020/139707 CN2020139707W WO2022126714A1 WO 2022126714 A1 WO2022126714 A1 WO 2022126714A1 CN 2020139707 W CN2020139707 W CN 2020139707W WO 2022126714 A1 WO2022126714 A1 WO 2022126714A1
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WIPO (PCT)
Prior art keywords
video
chip
platform
online
dvr
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PCT/CN2020/139707
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English (en)
Chinese (zh)
Inventor
周小强
朱群
谭晓勇
胡景邦
黄训良
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惠州市博实结科技有限公司
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Publication of WO2022126714A1 publication Critical patent/WO2022126714A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
    • G06F11/2294—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing by remote test
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
    • H04W12/06—Authentication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Definitions

  • the invention relates to the technical field of video equipment, and in particular to an on-line system and a remote debugging method for vehicle-mounted video equipment.
  • the core of the car video equipment is the DVR (DVR is the English abbreviation of Digital Video Recorder, Chinese is digital video recorder or digital hard disk recorder) chip, this chip supports 4G network online function, under normal circumstances, it can be performed through tools, remote and device video programs.
  • the DVR chip program runs abnormally due to some business functions (such as continuous crash and restart), so it is impossible to use the remote serial port debugging technology to analyze the abnormal cause of the device, and it is impossible to remotely restore the device to normal. state.
  • the purpose of the invention is to solve the problem that when the video program of the video equipment cannot work normally due to the service function, the abnormal cause of the vehicle-mounted video equipment cannot be remotely analyzed, and the equipment cannot be restored to the normal state remotely.
  • the specific solutions are as follows:
  • An on-line system for in-vehicle video equipment including video equipment, a 4G network wirelessly connected to the video equipment, and a platform wirelessly connected to the 4G network, the video equipment includes a control chip, a positioning module and a 4G module that are electrically connected to the control chip respectively.
  • Video unit the video equipment goes online on the platform through the 4G network, interacts with the platform, and realizes the functions of 4G dialing, triggering services, video preview, video playback, intercom, and remote serial port debugging.
  • control chip includes an MCU chip and a DVR chip, both of which can be online, wherein the DVR chip is online prior to the MCU chip being online.
  • the positioning module is a GPS/Beidou dual-mode positioning module, and the GPS/Beidou dual-mode positioning module is electrically connected to the MCU chip.
  • the video unit includes a video capture chip and a camera electrically connected thereto, and the video capture chip is electrically connected to the DVR chip.
  • Step 1 Both the MCU chip and the DVR chip of the video equipment support going online, and the DVR chip is preferred to go online;
  • Step 2 the video device sends a 0x0100 registration request to the platform through the 4G network;
  • Step 3 the platform determines whether the video device is in the database, and the registration in the database is successful, otherwise it fails;
  • Step 4 the platform sends a 0x8100 registration result response to the video device through the 4G network;
  • Step 5 the video device obtains the registration success, sends the authentication information, and ends the online if the registration fails;
  • Step 6 the video device sends 0x0102 authentication to the platform through the 4G network;
  • Step 7 the platform judges whether the video equipment authentication is legal, and responds to the equipment result
  • Step 8 the platform sends a 0x8001 general response to the video device through the 4G network;
  • Step 9 after the video device is successfully authenticated, it continuously reports the 0x0001 network heartbeat and 0x0200 location data sent to the platform through the 4G network;
  • Step 10 When the platform terminal determines that the device is online, it sends a 0x8300 text command to the video device through the 4G network to interact.
  • the position data includes three-dimensional position information, which is provided by a GPS/Beidou dual-mode positioning module.
  • the MCU chip model is GD32F205ZET6
  • the DVR chip model is T707 or Hisilicon 3520DV300
  • the GPS/Beidou dual-mode positioning module model is B1612-M1
  • the 4G module model is EC20-CE
  • the video capture chip model is NVP6158 or NVP6124
  • the platform is a server or a remote controller.
  • the remote debugging method of in-vehicle video equipment using the above-mentioned online system of in-vehicle video equipment, is carried out according to the following steps:
  • Step 1 If the DVR chip business has bugs and cannot go online, the MCU chip can be launched on the platform through the 4G network;
  • Step 2 manually issue commands to the MCU chip through the platform and the 4G network;
  • Step 3 the MCU chip judges whether the instruction is a jump safe mode instruction, if so, the next step is performed, if not, the general instruction processing is performed;
  • Step 4 activate the safe mode state, the MCU chip controls the DVR chip to power on again, and informs the DVR chip to enter the safe mode through the serial port;
  • Step 5 the DVR chip startup script reads the information of the serial port, and judges whether to enter the safe mode, if yes, then the next step, if not, it is in a normal working state, and executes complex business logic and comprehensive functions;
  • Step 6 the DVR chip starts a simple applet, dials up, goes online in the background, and supports remote serial port debugging;
  • Step 7 The platform remotely debugs and analyzes the video device, and after solving the service bug, restores the normal state of the video device;
  • Step 8 run restart video device to exit safe mode.
  • step 3 includes parameter modification instructions and trigger service function instructions.
  • step 5 the complex business logic and comprehensive functions described in step 5 include 4G dial-up, online platform, video capture, video analysis, security event reporting, video file upload, support platform video preview, playback video, and intercom.
  • the invention cleverly utilizes the feature that both the MCU chip and the DVR chip can go online.
  • the DVR chip has priority over the MCU chip's right to go online.
  • the MCU chip can go online at this time, and the platform is remote.
  • Send text or short messages to the MCU chip of the video device (a simple single-chip program), the MCU chip notifies the DVR chip through the serial port to enter a special mode (that is, safe mode), in which a simplified version of the program is run.
  • Fig. 1 is the block diagram of the on-line system of the in-vehicle video equipment of the present invention
  • Fig. 2 is the on-line flow chart of the on-line system of the in-vehicle video equipment of the present invention
  • FIG. 3 is a flowchart of the remote debugging method of the in-vehicle video equipment of the present invention.
  • 10-Video equipment 11-MCU chip, 12-DVR chip, 13-GPS/Beidou dual-mode positioning module, 14-4G module, 15-Video capture chip, 16-Camera, 20-4G network, 21-4G base station, 30 - Platform.
  • the on-line system of the in-vehicle video equipment includes a video equipment 10, a 4G network 20 connected to the video equipment 10 via a wireless network, a platform 30 wirelessly connected to the 4G network 20, and the video equipment 10 includes a control chip, The positioning module, the 4G module 14, and the video unit are respectively electrically connected to the control chip.
  • the video equipment goes online on the platform 30 through the 4G network 20 and interacts with the platform 30 to realize 4G dialing, triggering services, video preview, video playback, and intercom. , Remote serial debugging function.
  • control chip includes an MCU (MCU is the English abbreviation of Microcontroller Unit, that is, the meaning of a micro control unit) chip 11 and a DVR chip 12, both of which can be online, wherein the DVR chip 12 is online prior to the online of the MCU chip 11.
  • MCU Microcontroller Unit
  • DVR chip 12 is online prior to the online of the MCU chip 11.
  • the positioning module is a GPS/Beidou dual-mode positioning module 13 , and the GPS/Beidou dual-mode positioning module 13 is electrically connected to the MCU chip 11 .
  • the video unit includes a video capture chip 15 and a camera 16 electrically connected thereto, and the video capture chip 15 is electrically connected to the DVR chip 12 .
  • the model of MCU chip 11 is GD32F205ZET6, the model of DVR chip 12 is T707 or Hisilicon 3520DV300, other replacement models can also be used, the model of GPS/Beidou dual-mode positioning module 13 is B1612-M1, and other replacement models can also be used, 4G module 14
  • the model is EC20-CE, and other replacement models can also be used.
  • the video capture chip 15 model is NVP6158 or NVP6124, and other replacement models can also be used.
  • Platform 30 is a server or remote controller.
  • the 4G network 20 is a 4G base station 21 .
  • the MCU chip 11, the DVR chip 12, the GPS/Beidou dual-mode positioning module 13, the 4G module 14, and the video capture chip 15 in this solution all belong to the prior art, and their specific working principles are not described here.
  • Step S1 both the MCU chip and the DVR chip of the video device support going online, and the DVR chip is given priority to go online;
  • Step S2 the video device sends a 0x0100 registration request to the platform through the 4G network;
  • Step S3 the platform judges whether the video device is in the database, and the registration in the database is successful, otherwise it fails;
  • Step S4 the platform sends a 0x8100 registration result response to the video device through the 4G network;
  • Step S5 the video device obtains the registration success, sends the authentication information, and ends the online if the registration fails;
  • Step S6 the video device sends 0x0102 authentication to the platform through the 4G network;
  • Step S7 the platform judges whether the video equipment authentication is legal, and responds to the equipment result
  • Step S8 the platform sends a 0x8001 general response to the video device through the 4G network;
  • step S9 after the video device is successfully authenticated, it continuously reports and sends 0x0001 network heartbeat and 0x0200 position data to the platform through the 4G network; (The position data includes three-dimensional position information, which is provided by the GPS/Beidou dual-mode positioning module.)
  • step S10 when the platform terminal determines that the device is online, it sends a 0x8300 text command to the video device through the 4G network for interaction.
  • the remote debugging method of the in-vehicle video equipment using the above-mentioned online system of the in-vehicle video equipment, is carried out according to the following steps:
  • Step S1 the DVR chip service cannot be online due to bugs, and the MCU chip can be launched on the platform through the 4G network;
  • Step S2 manually issuing instructions to the MCU chip through the platform and the 4G network;
  • step S3-1 the MCU chip determines whether the instruction is a jump safe mode instruction. If so, the next step is performed. If not, S3-2 performs general instruction processing; (The general instruction includes parameter modification instructions and trigger business function instructions.)
  • Step S4 activate the safe mode state, the MCU chip controls the DVR chip to re-power on, and informs the DVR chip to enter the safe mode through the serial port;
  • Step S5-1 the DVR chip startup script reads the information of the serial port, and judges whether to enter the safe mode, if yes, then the next step, if no, S5-2 is in normal working state, and executes complex business logic and comprehensive functions; (complex business Logical and comprehensive functions include 4G dial-up, online platform, video capture, video analysis, security event reporting, video file upload, support platform video preview, playback video, and intercom.)
  • Step S6 the DVR chip starts a simple applet, dials up, goes online in the background, and supports remote serial port debugging;
  • Step S7 the platform remote serial port debugs and analyzes the video device, and after solving the service bug, restores the normal state of the video device;
  • Step S8 run and restart the video device to exit the safe mode.
  • the video-related function "real-time video preview" supported by the DVR chip is as follows:
  • Step 1 video equipment ⁇ online ⁇ platform
  • Step 2 manually click the preview real-time video menu on the platform PC client, the platform sends the request video stream ⁇ 0x9101 request video ⁇ video device;
  • Step 3 the device end (the device end refers to the video device, the same below) transmits the video to the designated IP port ⁇ video upload ⁇ platform according to the information issued by the platform;
  • Step 4 manually click to preview the real-time video on the platform PC client, close the preview window after watching, and the platform sends a request to close the video stream ⁇ 0x9102 request video ⁇ video device;
  • Step 5 the device side closes the video transmission according to the information sent by the platform.
  • the video function "historical video playback (that is, playback video)" of the video function supported by the DVR chip is as follows:
  • Step 1 video equipment ⁇ online ⁇ platform
  • Step 2 manually click the historical video search menu on the platform PC client, and the platform requests the device to view the historical video segment ⁇ 0x9205 to search for historical video ⁇ video equipment;
  • Step 3 the device sends the stored historical video segment description information to the server ⁇ 0x1205 sends the video segment index ⁇ platform;
  • Step 4 the platform PC client displays the historical video distribution map, and manually clicks on the PC client to play the video at the specified time point ⁇ 0x9201 to request the specified video segment ⁇ video device;
  • Step 5 the device side transmits the specified video segment video to the specified IP port ⁇ video RTP upload ⁇ platform according to the information issued by the platform;
  • Step 6 after the PC client finishes watching the video, close the viewing window, and the platform sends a request to close the video stream ⁇ 0x9202 request to close the video ⁇ video device;
  • Step 7 the device side closes the video transmission according to the information issued by the platform
  • Step 8 if manually on the PC client, according to the searched video information, click the upload specified historical video segment menu, the platform sends a request to upload a video stream ⁇ 0x9206 request to upload a specified video ⁇ video device;
  • Step 9 according to the information issued by the platform, the device package the video into mp4 format and upload it to the designated FTP server ⁇ FTP upload ⁇ FTP server;
  • Step 10 After manually checking and uploading on the PC client, download the video file to the local PC client, play it with a universal player, or share or copy it to the U disk through chat software.
  • the video function "active security event reporting" process supported by the DVR chip online is as follows:
  • Step 1 video equipment ⁇ online ⁇ platform
  • Step 2 the device side analyzes the video images collected by the camera through an intelligent algorithm, and generates active safety events (including smoking, making a phone call, yawning, eyes closed due to fatigue, looking left and right, lane departure, close distance of the preceding vehicle, preceding vehicle collision, etc.), Actively report alarm information to the platform ⁇ 0x0200 report event information ⁇ platform;
  • active safety events including smoking, making a phone call, yawning, eyes closed due to fatigue, looking left and right, lane departure, close distance of the preceding vehicle, preceding vehicle collision, etc.
  • Step 3 the business platform actively requests to upload media data (including pictures and videos) corresponding to the event ⁇ 0x9208 requests to upload media data ⁇ video equipment;
  • Step 4 according to the information issued by the business platform, the device side transmits the video to the designated data platform ⁇ upload media files ⁇ data platform; (the platform includes business platform and data platform)
  • Step 5 After receiving the multimedia file, the data platform synchronizes the alarm and media data to the business platform, and the business platform pushes the PC client for display.
  • the video equipment in this solution goes online to the business platform.
  • This solution solves the problem that when the video program of the video equipment cannot work normally due to the business function, the abnormal cause of the vehicle video equipment cannot be analyzed remotely, and the equipment cannot be restored to the normal state remotely.
  • the invention cleverly utilizes the feature that both the MCU chip and the DVR chip can go online.
  • the DVR chip has priority over the MCU chip's right to go online.
  • the video software encounters a bug (bug is a loophole in the computer field)
  • the DVR chip cannot go online normally.
  • the MCU The chip can go online, the platform remotely sends text or short messages to the MCU chip of the video device (a simple single-chip program), and the MCU chip notifies the DVR chip through the serial port to enter a special mode (that is, safe mode), in this mode , run a simplified version of the program (only supports 4G dialing, remote debugging serial port, uploading and downloading files), and then the platform can remotely debug and analyze the video equipment through the serial port, find the cause of the failure, and after solving the business bug, restore the normal state of the video equipment. In this way, the time and travel expenses that are delayed by the technicians visiting the site are avoided, the speed of troubleshooting is accelerated, the work efficiency is improved, and the equipment maintenance cost is reduced.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Hardware Design (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Système en ligne de dispositif vidéo monté sur véhicule, comprenant un dispositif vidéo, un réseau 4G ayant une connexion de réseau sans fil au dispositif vidéo et une plateforme ayant une connexion de réseau sans fil au réseau 4G, le dispositif vidéo comprenant une puce de commande, un module de positionnement, un module 4G et une unité vidéo ; au moyen du réseau 4G, le dispositif vidéo passe en ligne sur la plateforme et interagit avec la plateforme pour mettre en œuvre des fonctions comme le réveil 4G, le déclenchement de services, la prévisualisation vidéo, la lecture vidéo, l'intercommunication et le débogage de port série à distance. La puce de commande comprend une puce MCU et une puce DVR, toutes deux capables de passer en ligne, la priorité de la puce DVR destinée à passer en ligne étant supérieure à celle de la puce MCU. Lorsque la puce DVR ne peut pas passer en ligne, la plateforme émet à distance un texte ou un message court vers la puce MCU pour notifier à la puce DVR d'entrer dans un mode spécial, et la plateforme peut mettre en œuvre un débogage et une analyse en série à distance du dispositif vidéo et restaurer l'état normal du dispositif vidéo, ce qui permet d'éviter le retard temporel et les dépenses de déplacement d'un technicien se rendant sur le site d'une personne, d'accélérer la vitesse de défauts de traitement, d'augmenter l'efficacité de travail et de réduire les coûts de maintenance du dispositif.
PCT/CN2020/139707 2020-12-14 2020-12-25 Système en ligne de dispositif vidéo monté sur véhicule et procédé de débogage à distance WO2022126714A1 (fr)

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