A video tracing system

Abstract

The present invention relates to the field of network communication and video monitoring technology, and discloses a video tracing system. The present invention utilizes a tracing device to embed tracing information into video data before the video data is transmitted back, and then encrypts the video data, which can not only improve data security, but also ensure that even if the video data is accidentally leaked, the video data can be tracked according to the tracing information, which is crucial to the high-quality operation and maintenance of urban rail transit, and can provide safe and effective data support for urban rail transit management.

Description

Technical Field

[0001] The present invention relates to the technical field of network communication and video monitoring and surveillance, and in particular to a video source tracing system. Background Art

[0002] Video surveillance of urban rail transit plays a vital role in ensuring train operation safety, disaster prevention and relief, passenger guidance and public security. It can provide visual information on train operation, disaster prevention and relief, passenger guidance and public security to dispatchers at the subway control center, station attendants, train drivers, etc. The existing urban rail transit management system generally controls the PTZ camera through a video terminal and obtains real-time video streams, but its watermark function is implemented in the video terminal using terminal soft decoding. The video stream is prone to data leakage during the transmission from the PTZ camera to the video terminal, and the data security is low. In addition, the video does not contain watermark information during the transmission process, making it difficult to track effectively.

[0003] Therefore, there is an urgent need for a video tracing system that can ensure data security. Summary of the invention

[0004] The present invention provides a video tracing system for solving the defects of the existing urban rail transit management system that video data leakage is prone to occur and video data cannot be effectively traced during the process of obtaining real-time video stream by controlling a pan-tilt camera through a video terminal.

[0005] The present invention provides a video source tracing system, comprising:

[0006] A video terminal, wherein the video terminal is configured to receive a video source tracing request, transmit the video source tracing request to a video management server, and receive encrypted video data transmitted by a video management and access server;

[0007] A video management and access server, wherein the video management and access server is configured to receive a video source tracing request transmitted by a video terminal, transmit the video source tracing request to a source tracing device, and receive encrypted video data transmitted by the source tracing device and transmit the encrypted video data to the video terminal;

[0008] A tracing device, wherein the tracing device is configured to receive a video tracing request transmitted by a video management and access server, and transmit the video tracing request to a camera device, and receive video data corresponding to the video tracing request transmitted by the camera device, embed tracing information corresponding to the video tracing request in the video data, encrypt the video data after the tracing information is embedded, and transmit the encrypted video data to the video management and access server;

[0009] A camera device, wherein the camera device is configured to receive a video tracing request transmitted by a tracing device, obtain video data corresponding to the video tracing request, and transmit the video data corresponding to the video tracing request to the tracing device.

[0010] According to a video source tracing system provided by the present invention, the video management and access server includes a video management server and a video access server.

[0011] The video management server is configured to receive a video source tracing request transmitted by a video terminal, and transmit the video source tracing request to a video access server;

[0012] The video access server is configured to receive a video tracing request transmitted by a video management server and transmit the video tracing request to a tracing device, and to receive encrypted video data transmitted by the tracing device and transmit the encrypted video data to a video terminal.

[0013] According to a video source tracing system provided by the present invention, the video data embedded with the source tracing information is encrypted and the encrypted video data is transmitted to the video management and access server, including:

[0014] Combining asymmetric encryption and symmetric encryption, the video data with embedded traceability information is encrypted and transmitted to the video management and access server.

[0015] According to a video source tracing system provided by the present invention, the asymmetric encryption and symmetric encryption are combined to encrypt the video data after embedding the source tracing information, and the encrypted video data is transmitted to the video management and access server, including:

[0016] First, the video data embedded with the traceability information is asymmetrically encrypted so that the symmetric encryption key is shared between the traceability device and the video terminal;

[0017] The encrypted video data is then transmitted using symmetric encryption.

[0018] According to a video source tracing system provided by the present invention, the source tracing information includes any one of the following items or any combination thereof: user name, request time, and request address.

[0019] According to a video source tracing system provided by the present invention, the video terminal is further configured to generate a digital signature for the video source tracing request when receiving the video source tracing request, and embed the digital signature into the video source tracing request;

[0020] The tracing device is also configured to verify the digital signature in the video tracing request when receiving the video tracing request transmitted by the video management and access server, and transmit the video tracing request to the camera device only after the digital signature in the video tracing request passes the verification.

[0021] According to a video tracing system provided by the present invention, the video terminal is also configured to issue user identity verification information when receiving a video tracing request, and transmit the video tracing request to the video management server only after the user identity verification is passed.

[0022] According to a video source tracing system provided by the present invention, the video terminal is also configured to decrypt the received encrypted video data and display the video data containing the source tracing information on the interface.

[0023] According to a video source tracing system provided by the present invention, the video source tracing request includes a photo tracing request and / or a pan / tilt operation tracing request.

[0024] The present invention also provides a video tracing method for urban rail transit management, comprising:

[0025] receiving a video source tracing request through a video terminal, and transmitting the video source tracing request to a video management server;

[0026] The video management and access server receives the video source tracing request transmitted by the video terminal, and transmits the video source tracing request to the source tracing device;

[0027] The video tracing request transmitted by the video management and access server is received through the tracing device, and the video tracing request is transmitted to the camera device;

[0028] Receive the video tracing request transmitted by the tracing device through the camera device, obtain the urban rail transit video data corresponding to the video tracing request, and transmit the urban rail transit video data corresponding to the video tracing request to the tracing device;

[0029] receiving urban rail transit video data corresponding to the video tracing request transmitted by the camera device through the tracing device, embedding tracing information corresponding to the video tracing request in the urban rail transit video data, encrypting the urban rail transit video data after the tracing information is embedded, and transmitting the encrypted urban rail transit video data to the video management and access server;

[0030] Receive the encrypted urban rail transit video data transmitted by the traceability device through the video management and access server and transmit the encrypted urban rail transit video data to the video terminal;

[0031] The encrypted urban rail transit video data transmitted by the video management and access server is received through the video terminal.

[0032] The present invention provides a video tracing system, which utilizes a tracing device to embed tracing information into video data before the video data is transmitted back, and then encrypts the video data. This can not only improve data security, but also ensure that even if the video data is accidentally leaked, the video data can still be tracked based on the tracing information. This is crucial to the high-quality operation and maintenance of urban rail transit, and can provide safe and effective data support for urban rail transit management. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the structure of a video tracing system provided by the present invention.

[0035] Figure 2 A network topology diagram of a video tracing system provided by the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments, and they should not be understood as limitations on the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the description of the present invention, it should be understood that the terms used are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] See also Figure 1 and Figure 2 The video source tracing system provided by the present invention may include:

[0038] Video terminal A, the video terminal is configured to receive a video tracing request, the video tracing request includes a photo tracing request and / or a pan / tilt operation tracing request, the video tracing request may include the user information that issues the video tracing request (such as user name, user IP, video information to be traced, etc.), and transmit the video tracing request to the video management server, and receive the encrypted video data transmitted by the video management and access server.

[0039] In one embodiment, the video terminal is also configured to send user identity authentication information when receiving a video tracing request, and only transmit the video tracing request to the video management server after the user identity authentication is passed. Specifically, the user identity authentication method can be a real-name authentication method. For example, it is required to verify that the internal verified personnel of the rail transit management system can obtain video data through the video tracing system. Otherwise, the user identity authentication will not pass and the video tracing will be terminated. In this way, the data in the video tracing system can be protected from the source, and the personnel who obtain the data can be restricted to prevent everyone from obtaining the video data and making it easy for people with ulterior motives to spread the data.

[0040] In one embodiment, the video terminal is also configured to decrypt the received encrypted video data and display the video data containing traceability information on the interface. When the video data is transmitted back to the video terminal, the video terminal can directly decrypt and display it, which can improve the efficiency of video traceability and facilitate user viewing.

[0041] Video management and access server B, wherein the video management and access server includes a video management server and a video access server, the video management server is configured to receive a video tracing request transmitted by a video terminal, and transmit the video tracing request to the video access server; the video access server is configured to receive a video tracing request transmitted by the video management server, and transmit the video tracing request to a tracing device, and receive encrypted video data transmitted by the tracing device and transmit the encrypted video data to the video terminal.

[0042] The tracing device C is configured to receive a video tracing request transmitted by a video management and access server, and transmit the video tracing request to a camera device, and receive video data corresponding to the video tracing request transmitted by the camera device, embed tracing information corresponding to the video tracing request in the video data, the tracing information may include user name, request time, request address and other information, encrypt the video data after the tracing information is embedded, and transmit the encrypted video data to the video management and access server.

[0043] In one embodiment, asymmetric encryption and symmetric encryption can be combined to encrypt the video data embedded with the traceability information, and the encrypted video data can be transmitted to the video management and access server. For example, the video data embedded with the traceability information is first asymmetric encrypted to share the symmetric encryption key between the traceability device and the video terminal; and then the encrypted video data is transmitted by symmetric encryption. Combining asymmetric encryption and symmetric encryption to achieve video traceability can ensure data security during the video traceability process.

[0044] In one embodiment, the video terminal is also configured to generate a digital signature for the video tracing request when receiving the video tracing request, and embed the digital signature into the video tracing request. Correspondingly, the tracing device is also configured to verify the digital signature in the video tracing request when receiving the video tracing request transmitted by the video management and access server, and transmit the video tracing request to the camera device only after the digital signature in the video tracing request passes the verification. In this way, the authenticity and validity of the video tracing request can be further verified, avoiding data loss caused by fake video tracing requests generated by hackers, and effectively ensuring the data security of the video tracing process.

[0045] The camera device D may be a pan-tilt camera, and the number may be multiple. The camera device is configured to receive a video tracing request transmitted by a tracing device, obtain video data corresponding to the video tracing request, and transmit the video data corresponding to the video tracing request to the tracing device.

[0046] In one embodiment, a video tracing system provided by the present invention can be applied to urban rail transit management to form a video tracing method for urban rail transit management, including the following steps:

[0047] receiving a video source tracing request through a video terminal, and transmitting the video source tracing request to a video management server;

[0048] The video management and access server receives the video source tracing request transmitted by the video terminal, and transmits the video source tracing request to the source tracing device;

[0049] The video tracing request transmitted by the video management and access server is received through the tracing device, and the video tracing request is transmitted to the camera device;

[0050] Receive the video tracing request transmitted by the tracing device through the camera device, obtain the urban rail transit video data corresponding to the video tracing request, and transmit the urban rail transit video data corresponding to the video tracing request to the tracing device;

[0051] receiving urban rail transit video data corresponding to the video tracing request transmitted by the camera device through the tracing device, embedding tracing information corresponding to the video tracing request in the urban rail transit video data, encrypting the urban rail transit video data after the tracing information is embedded, and transmitting the encrypted urban rail transit video data to the video management and access server;

[0052] Receive the encrypted urban rail transit video data transmitted by the traceability device through the video management and access server and transmit the encrypted urban rail transit video data to the video terminal;

[0053] The encrypted urban rail transit video data transmitted by the video management and access server is received through the video terminal.

[0054] The present invention provides a video tracing system, which utilizes a tracing device to embed tracing information into video data before the video data is transmitted back, and then encrypts the video data. This can not only improve data security, but also ensure that even if the video data is accidentally leaked, the video data can still be tracked based on the tracing information. This is crucial to the high-quality operation and maintenance of urban rail transit, and can provide safe and effective data support for urban rail transit management.

[0055] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0056] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A video tracing system, characterized in that: include: A video terminal, wherein the video terminal is configured to receive a video source tracing request, transmit the video source tracing request to a video management server, and receive encrypted video data transmitted by a video management and access server; A video management and access server, wherein the video management and access server is configured to receive a video source tracing request transmitted by a video terminal, transmit the video source tracing request to a source tracing device, and receive encrypted video data transmitted by the source tracing device and transmit the encrypted video data to the video terminal; A tracing device, wherein the tracing device is configured to receive a video tracing request transmitted by a video management and access server, and transmit the video tracing request to a camera device, and receive video data corresponding to the video tracing request transmitted by the camera device, embed tracing information corresponding to the video tracing request in the video data, encrypt the video data after the tracing information is embedded, and transmit the encrypted video data to the video management and access server; A camera device, wherein the camera device is configured to receive a video tracing request transmitted by a tracing device, obtain video data corresponding to the video tracing request, and transmit the video data corresponding to the video tracing request to the tracing device; The step of encrypting the video data after embedding the traceability information and transmitting the encrypted video data to the video management and access server includes: Combining asymmetric encryption and symmetric encryption, the video data embedded with traceability information is encrypted and transmitted to the video management and access server; First, the video data embedded with the traceability information is asymmetrically encrypted so that the symmetric encryption key is shared between the traceability device and the video terminal; Then the encrypted video data is transmitted by symmetric encryption; The traceability information includes any one of the following or any combination thereof: user name, request time, request address; Wherein, the video terminal is further configured to generate a digital signature for the video tracing request when receiving the video tracing request, and embed the digital signature into the video tracing request; The tracing device is also configured to verify the digital signature in the video tracing request when receiving the video tracing request transmitted by the video management and access server, and transmit the video tracing request to the camera device only after the digital signature in the video tracing request passes the verification.

2. The video tracing system according to claim 1, characterized in that: The video management and access server includes a video management server and a video access server. The video management server is configured to receive a video source tracing request transmitted by a video terminal, and transmit the video source tracing request to a video access server; The video access server is configured to receive a video tracing request transmitted by a video management server and transmit the video tracing request to a tracing device, and to receive encrypted video data transmitted by the tracing device and transmit the encrypted video data to a video terminal.

3. The video tracing system according to claim 1 or 2, characterized in that: The video terminal is also configured to issue user identity verification information when receiving a video source tracing request, and transmit the video source tracing request to the video management server only after the user identity verification is passed.

4. The video tracing system according to claim 1 or 2, characterized in that: The video terminal is also configured to decrypt the received encrypted video data and display the video data containing the traceability information on the interface.

5. The video tracing system according to claim 1 or 2, characterized in that: The video origin tracing request includes a photo origin tracing request and / or a gimbal operation origin tracing request.

6. A video tracing method for urban rail transit management, characterized in that: include: receiving a video source tracing request through a video terminal, and transmitting the video source tracing request to a video management server; The video management and access server receives the video source tracing request transmitted by the video terminal, and transmits the video source tracing request to the source tracing device; The video tracing request transmitted by the video management and access server is received through the tracing device, and the video tracing request is transmitted to the camera device; Receive the video tracing request transmitted by the tracing device through the camera device, obtain the urban rail transit video data corresponding to the video tracing request, and transmit the urban rail transit video data corresponding to the video tracing request to the tracing device; receiving urban rail transit video data corresponding to the video tracing request transmitted by the camera device through the tracing device, embedding tracing information corresponding to the video tracing request in the urban rail transit video data, encrypting the urban rail transit video data after the tracing information is embedded, and transmitting the encrypted urban rail transit video data to the video management and access server; Receive the encrypted urban rail transit video data transmitted by the traceability device through the video management and access server and transmit the encrypted urban rail transit video data to the video terminal; Receive encrypted urban rail transit video data transmitted by video management and access servers through video terminals; The step of encrypting the video data after embedding the traceability information and transmitting the encrypted video data to the video management and access server includes: Combining asymmetric encryption and symmetric encryption, the video data embedded with traceability information is encrypted and transmitted to the video management and access server; First, the video data embedded with the traceability information is asymmetrically encrypted so that the symmetric encryption key is shared between the traceability device and the video terminal; Then the encrypted video data is transmitted by symmetric encryption; The traceability information includes any one of the following or any combination thereof: user name, request time, request address; Wherein, the video terminal is further configured to generate a digital signature for the video tracing request when receiving the video tracing request, and embed the digital signature into the video tracing request; The tracing device is also configured to verify the digital signature in the video tracing request when receiving the video tracing request transmitted by the video management and access server, and transmit the video tracing request to the camera device only after the digital signature in the video tracing request passes the verification.

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