CN112949394B - Remote monitoring method based on blockchain, electronic equipment and storage medium - Google Patents
Remote monitoring method based on blockchain, electronic equipment and storage medium Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/40—Scenes; Scene-specific elements in video content
- G06V20/46—Extracting features or characteristics from the video content, e.g. video fingerprints, representative shots or key frames
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a remote monitoring method, electronic equipment and storage medium based on a blockchain, which are characterized in that a blockchain platform end carries out corresponding binding monitoring on a monitoring node and a monitoring center, and in the monitoring node and the monitoring center, acquisition and uplink of verification data are carried out on real-time monitoring video data, so that when a monitoring video is required to be regulated in the follow-up process, the authenticity of the monitoring video data to be judged is judged through the verification data on the blockchain, and a judgment result is provided; the method can ensure the authenticity of the monitoring video.
Description
Technical Field
The present invention relates to the field of video monitoring technologies, and in particular, to a remote monitoring method based on a blockchain, an electronic device, and a storage medium.
Background
The existing video monitoring looks at real-time pictures of all cameras in a monitoring room, and the cameras and the monitoring room are of the same attribution, such as kindergarten, factory workshop and the like, at the moment, the authenticity of the monitoring video is completely determined in the user, and even the problem of monitoring video loss exists. When the public needs to be subjected to the public demonstration, the authenticity of the monitoring video cannot be demonstrated, so that the monitoring video cannot play a corresponding role in the demonstration, namely, the method for guaranteeing the authenticity of the monitoring video is lacking.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: a remote monitoring method based on a block chain, electronic equipment and a storage medium are provided, so that the authenticity of a monitoring video is ensured.
In order to solve the technical problems, the invention adopts the following technical scheme:
a remote monitoring method based on a block chain comprises the following steps:
s1, broadcasting a monitoring request comprising monitoring duration to a plurality of monitoring centers on a blockchain platform end by a first monitoring node when monitoring is performed, judging whether acknowledgement monitoring response information is received in real time, if so, establishing connection with the first monitoring center which transmits the acknowledgement monitoring response information, and transmitting real-time monitoring video data to the first monitoring center within the monitoring duration;
s2, a first monitoring node randomly extracts a video frame as a node verification video frame in a first preset time every interval while sending the real-time monitoring video data to obtain a node unique identifier of the node verification video frame, and calculates a video feature code of the node verification video frame to obtain a node verification feature code, generates node verification data comprising the node unique identifier and the node verification feature code, and sequences the node verification data according to a time sequence, wherein the first preset time is smaller than the monitoring duration;
s3, randomly extracting a video frame from the real-time monitoring video data as a center verification video frame every first preset time to obtain a center unique identifier of the center verification video frame, calculating video feature codes of the center verification video frame to obtain center verification feature codes, generating center verification data comprising the center unique identifier and the center verification feature codes, and sequencing the center verification data according to a time sequence;
s4, when the first monitoring node reaches the monitoring time length, adding a first verification sequence formed by sequencing the node verification data of all the node verification video frames in the monitoring time length into a first block chain;
s5, when the first monitoring center reaches the monitoring duration, adding a center verification sequence formed by sequencing the center verification data of all the center verification video frames in the monitoring duration into a center blockchain, and uploading all the real-time monitoring video data in the monitoring duration to a data storage library for downloading by the first monitoring node;
s6, receiving an authenticity verification request of the monitoring video data to be judged by a block chain platform end, acquiring corresponding standard node verification data from the first block chain and corresponding standard center verification data from the center block chain according to the monitoring video data to be judged, acquiring a node verification video frame to be judged from the monitoring video data to be judged according to a standard node unique identifier in the standard node verification data, acquiring a center verification video frame to be judged from the monitoring video data to be judged according to a standard center unique identifier in the standard center verification data, and respectively performing video feature code calculation on the node verification video frame to be judged and the center verification video frame to be judged to obtain a node verification feature code to be judged and a center verification feature code to be judged, judging whether the node verification feature code to be judged is consistent with the standard node verification feature code in the standard node verification data or not, and judging whether the center verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data or not, if the node verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data, otherwise, the monitoring video data to be judged is false.
Further, the steps between the step S5 and the step S6 further include the following steps:
and when the first monitoring node confirms that the monitoring is finished, the blockchain platform terminal deducts fees from the corresponding account number of the first monitoring node according to a preset charging mode and charges the corresponding account number of the first monitoring center.
Further, the first preset time is [1 minute, 10 minutes ].
Further, the first preset time is [1/100,1/20] of the monitoring duration.
Further, the first monitoring node may send an extended monitoring request including an extended monitoring time to the first monitoring center when the monitoring duration is not reached, and if the first monitoring center receives and confirms the extended monitoring, the first monitoring node still sends real-time monitoring video data to the first monitoring center within the extended monitoring time after the monitoring duration is reached.
Further, the step S1 further includes the following steps:
if the confirmation monitoring response information is not received, the real-time monitoring video data are sent to the blockchain platform end for storage, and hosting marks are marked on all the stored real-time monitoring video data;
the step S6 specifically includes the following steps:
s61, the blockchain platform end receives an authenticity verification request for the monitoring video data to be judged, judges whether the monitoring video data to be judged has the hosting mark or not, if so, executes a step S62, otherwise, executes a step S63;
s62, obtaining corresponding standard node verification data from the first blockchain and corresponding standard center verification data from the center blockchain according to the to-be-judged monitoring video data, obtaining a to-be-judged node verification video frame from the to-be-judged monitoring video data according to a standard node unique identifier in the standard node verification data and obtaining a to-be-judged center verification video frame from the to-be-judged monitoring video data according to a standard center unique identifier in the standard center verification data, respectively carrying out video feature code calculation on the node verification video frame to be judged and the center verification video frame to be judged to obtain node verification feature codes to be judged and center verification feature codes to be judged, judging whether the node verification feature codes to be judged are consistent with standard node verification feature codes in the standard node verification data or not and judging whether the center verification feature codes to be judged are consistent with standard center verification feature codes in the standard center verification data or not, if the node verification feature codes to be judged are consistent with the standard center verification feature codes in the standard center verification data, the monitoring video data to be judged is true, otherwise, the monitoring video data to be judged is false;
s63, obtaining corresponding standard node verification data from the first block chain according to the to-be-judged monitoring video data, obtaining to-be-judged node verification video frames from the to-be-judged monitoring video data according to the standard node unique identification in the standard node verification data, performing video feature code calculation on the to-be-judged node verification video frames to obtain to-be-judged node verification feature codes, judging whether the to-be-judged node verification feature codes are consistent with the standard node verification feature codes in the standard node verification data, if so, the to-be-judged monitoring video data are true, otherwise, the to-be-judged monitoring video data are false.
Further, when the blockchain platform end has supervision rights on all monitoring nodes, the blockchain platform end can selectively acquire part of the monitoring nodes and broadcast the part of the monitoring nodes to all monitoring centers.
Further, the video feature code calculation is a hash value calculation.
In order to solve the technical problems, the invention adopts another technical scheme that:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of a blockchain-based remote monitoring method as described above when the computer program is executed.
In order to solve the technical problems, the invention adopts another technical scheme that:
a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the steps of a blockchain-based remote monitoring method as described above.
The invention has the beneficial effects that: a remote monitoring method, electronic equipment and storage medium based on block chain, introduce the third party to monitor the monitoring node in real time, have avoided influencing the authenticity of the monitoring video because of "one's own words"; meanwhile, the real-time monitoring video is collected in the monitoring node and the monitoring center, wherein video feature codes are obtained by randomly selecting video frames, the forging difficulty of the verification data can be improved, the storage amount is reduced, the verification data are respectively put into corresponding block chains for storage, the verification data are prevented from being tampered, namely, the authenticity of the verification data is greatly improved while the storage amount is reduced, and the follow-up use of the verification data to judge whether the monitoring video is more reliable and accurate in the actual result, so that the authenticity of the monitoring video is ensured.
Drawings
FIG. 1 is a flow chart of a blockchain-based remote monitoring method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Description of the reference numerals:
1. an electronic device; 2. a processor; 3. a memory.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Example 1
Referring to fig. 1, a remote monitoring method based on blockchain includes the steps of:
s1, broadcasting a monitoring request comprising monitoring duration to a plurality of monitoring centers on a blockchain platform end by a first monitoring node when monitoring is performed, judging whether acknowledgement monitoring response information is received in real time, if so, establishing connection with the first monitoring center which transmits the acknowledgement monitoring response information, and transmitting real-time monitoring video data to the first monitoring center within the monitoring duration;
in the first embodiment, the blockchain platform end has a supervision right on all the monitoring nodes, and the blockchain platform end can selectively acquire part of the monitoring nodes and broadcast the part of the monitoring nodes to all the monitoring centers, for example, the blockchain platform end developed by the education bureau requires that cameras of the local school are used as the monitoring nodes to be docked to the blockchain platform end, and meanwhile, monitoring rooms of the local school are used as the monitoring centers and/or a plurality of corresponding monitoring rooms under the education bureau are used as the monitoring centers, wherein, when the local school comprises a kindergarten, an administrator account on the blockchain platform end can select different cameras as the first monitoring nodes of the step S1 to broadcast monitoring requests to all the monitoring rooms, and the corresponding monitoring rooms are required to claim the monitoring of one of the monitoring nodes, for example, the first monitoring centers claim the monitoring of the first monitoring nodes.
S2, when the first monitoring node sends real-time monitoring video data, randomly extracting a video frame as a node verification video frame in a first preset time every interval to obtain a node unique identifier of the node verification video frame, calculating a video feature code of the node verification video frame to obtain a node verification feature code, generating node verification data comprising the node unique identifier and the node verification feature code, and sequencing the node verification data according to a time sequence, wherein the first preset time is smaller than the monitoring duration;
in this embodiment, the first preset time is 3 minutes, and in other equivalent embodiments, the first preset time may be [1 minute, 10 minutes ] or [1/100,1/20] where the first preset time is a monitoring duration, for example, the monitoring duration is 1 hour, and then 1/100 is 36 seconds, so that the first preset time may be set according to an actual application scenario.
Wherein the video feature code calculation is hash value calculation.
S3, randomly extracting a video frame from the real-time monitoring video data as a center verification video frame every first preset time to obtain a center unique identifier of the center verification video frame, calculating video feature codes of the center verification video frame to obtain center verification feature codes, generating center verification data comprising the center unique identifier and the center verification feature codes, and sequencing the center verification data according to a time sequence;
in this embodiment, the monitoring room and the camera do not belong to the same school, so that the monitoring process is more real and effective, and meanwhile, the functions of mutual supervision, learning and reference are achieved among different schools.
S4, when the first monitoring node reaches the monitoring duration, adding a first verification sequence formed by ordering node verification data of all node verification video frames in the monitoring duration into the first block chain;
s5, when the first monitoring center reaches the monitoring duration, adding a center verification sequence formed by sequencing center verification data of all center verification video frames in the monitoring duration into a center block chain, and uploading all real-time monitoring video data in the monitoring duration to a data storage library for downloading by a first monitoring node;
therefore, the monitoring video data are stored in the data storage library, the corresponding monitoring video data can be downloaded by the school where the monitoring node is located according to the account number, meanwhile, the real-time monitoring video is collected by the monitoring node and the monitoring center, the video feature codes are obtained by randomly selecting video frames, the forging difficulty of the verification data can be improved, the storage capacity is reduced, the verification data are respectively put into the corresponding block chains for storage, the verification data are prevented from being tampered, and the authenticity of the verification data is greatly improved while the storage capacity is reduced.
Thus, in the present embodiment, the following steps are further included between step S5 and step S6:
when the first monitoring node confirms that monitoring is completed, the blockchain platform terminal deducts fees from the corresponding account number of the first monitoring node according to a preset charging mode and charges the corresponding account number of the first monitoring center.
The charging and deducting are not necessarily money, but may be check points or the like.
S6, the blockchain platform end receives an authenticity verification request of the monitoring video data to be judged, acquires corresponding standard node verification data from the first blockchain and corresponding standard center verification data from the center blockchain according to the monitoring video data to be judged, acquires a node verification video frame to be judged from the monitoring video data to be judged according to a standard node unique identifier in the standard node verification data, acquires a center verification video frame to be judged from the monitoring video data to be judged according to a standard center unique identifier in the standard center verification data, respectively carries out video feature code calculation on the node verification video frame to be judged and the center verification video frame to be judged, so as to obtain a node verification feature code to be judged and a center verification feature code to be judged, judges whether the node verification feature code to be judged is consistent with the standard node verification feature code in the standard node verification data and judges whether the center verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data, if the node verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data, and if the node verification feature code to be judged is consistent with the standard node verification feature code in the standard center verification data, otherwise, the monitoring video data to be judged is true.
Therefore, when students are injured in a school, the monitoring video can be disclosed to display the current picture, and the monitoring video is simultaneously guaranteed by three steps of real-time monitoring of other schools, data storage of an educational bureau and verification of authenticity of a blockchain, so that the authenticity of the disclosed monitoring video is greatly guaranteed, and the monitoring video data is stored in a database under the educational bureau, so that the problem of losing the monitoring video is avoided.
In the actual use process, the first monitoring node can send an extension monitoring request comprising extension monitoring time to the first monitoring center when the monitoring time is not reached, and if the first monitoring center receives and confirms extension monitoring, the first monitoring node still sends real-time monitoring video data to the first monitoring center in the extension monitoring time after the monitoring time is reached.
Example two
Referring to fig. 1, in a remote monitoring method based on a blockchain, based on the first embodiment, step S1 further includes the following steps:
if the confirmation monitoring response information is not received, the real-time monitoring video data are sent to a blockchain platform end for storage, and hosting marks are marked on all the stored real-time monitoring video data;
the block chain platform end adopts random extraction to select monitoring nodes which need to be monitored by other monitoring centers in real time, and the monitoring video data of the other monitoring nodes are correspondingly stored.
The step S6 specifically comprises the following steps:
s61, the blockchain platform end receives an authenticity verification request of the monitoring video data to be judged, judges whether the monitoring video data to be judged has a hosting mark, if so, executes a step S62, otherwise, executes a step S63;
s62, acquiring corresponding standard node verification data from a first block chain and corresponding standard center verification data from a center block chain according to the monitoring video data to be judged, acquiring a node verification video frame to be judged from the monitoring video data to be judged according to a standard node unique identifier in the standard node verification data, acquiring a center verification video frame to be judged from the monitoring video data to be judged according to a standard center unique identifier in the standard center verification data, respectively performing video feature code calculation on the node verification video frame to be judged and the center verification video frame to be judged to obtain a node verification feature code to be judged and a center verification feature code to be judged, judging whether the node verification feature code to be judged is consistent with the standard node verification feature code in the standard node verification data or not, and judging whether the center verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data or not, if the node verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data, judging that the monitoring video data to be judged is true, otherwise, judging that the monitoring video data to be judged to be false;
s63, corresponding standard node verification data are obtained from the first block chain according to the monitoring video data to be judged, node verification video frames to be judged are obtained from the monitoring video data to be judged according to the standard node unique identification in the standard node verification data, video feature code calculation is carried out on the node verification video frames to be judged to obtain node verification feature codes to be judged, whether the node verification feature codes to be judged are consistent with the standard node verification feature codes in the standard node verification data or not is judged, if yes, the monitoring video data to be judged are true, and if not, the monitoring video data to be judged are false.
The monitoring video marked with the hosting mark is still stored and managed by the educational bureau and prevented from being tampered by the characteristic of the blockchain, and the corresponding monitoring nodes are selected by the monitoring center after the monitoring nodes to be monitored are randomly selected or broadcast is adopted, so that the data of the monitoring nodes which are not selected can be stored, and therefore real-time monitoring is not needed for each monitoring node, and resource waste is avoided.
Example III
Referring to fig. 2, an electronic device 1 includes a memory 3, a processor 2, and a computer program stored in the memory 3 and executable on the processor 2, wherein the processor 2 implements the steps of a blockchain-based remote monitoring method according to one or two embodiments when executing the computer program.
Example IV
A computer readable storage medium having stored thereon a computer program which when executed by a processor performs the steps of a blockchain-based remote monitoring method as in one or more of the first or second embodiments.
In summary, according to the blockchain-based remote monitoring method, the electronic equipment and the storage medium provided by the invention, a third party, namely a monitoring center, is introduced to monitor the monitoring node in real time, so that the influence on the authenticity of the monitoring video due to 'one-family' is avoided; meanwhile, the real-time monitoring video is collected in the monitoring node and the monitoring center, wherein video feature codes are obtained by randomly selecting video frames, the forging difficulty of the verification data can be improved, the storage amount is reduced, the verification data are respectively put into corresponding block chains for storage, the verification data are prevented from being tampered, namely, the authenticity of the verification data is greatly improved while the storage amount is reduced, and the follow-up use of the verification data to judge whether the monitoring video is more reliable and accurate in the actual result, so that the authenticity of the monitoring video is ensured.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (10)
1. The remote monitoring method based on the block chain is characterized by comprising the following steps:
s1, broadcasting a monitoring request comprising monitoring duration to a plurality of monitoring centers on a blockchain platform end by a first monitoring node when monitoring is performed, judging whether acknowledgement monitoring response information is received in real time, if so, establishing connection with the first monitoring center which transmits the acknowledgement monitoring response information, and transmitting real-time monitoring video data to the first monitoring center within the monitoring duration;
s2, a first monitoring node randomly extracts a video frame as a node verification video frame in a first preset time every interval while sending the real-time monitoring video data to obtain a node unique identifier of the node verification video frame, and calculates a video feature code of the node verification video frame to obtain a node verification feature code, generates node verification data comprising the node unique identifier and the node verification feature code, and sequences the node verification data according to a time sequence, wherein the first preset time is smaller than the monitoring duration;
s3, randomly extracting a video frame from the real-time monitoring video data as a center verification video frame every first preset time to obtain a center unique identifier of the center verification video frame, calculating video feature codes of the center verification video frame to obtain center verification feature codes, generating center verification data comprising the center unique identifier and the center verification feature codes, and sequencing the center verification data according to a time sequence;
s4, when the first monitoring node reaches the monitoring time length, adding a first verification sequence formed by sequencing the node verification data of all the node verification video frames in the monitoring time length into a first block chain;
s5, when the first monitoring center reaches the monitoring duration, adding a center verification sequence formed by sequencing the center verification data of all the center verification video frames in the monitoring duration into a center blockchain, and uploading all the real-time monitoring video data in the monitoring duration to a data storage library for downloading by the first monitoring node;
s6, receiving an authenticity verification request of the monitoring video data to be judged by a block chain platform end, acquiring corresponding standard node verification data from the first block chain and corresponding standard center verification data from the center block chain according to the monitoring video data to be judged, acquiring a node verification video frame to be judged from the monitoring video data to be judged according to a standard node unique identifier in the standard node verification data, acquiring a center verification video frame to be judged from the monitoring video data to be judged according to a standard center unique identifier in the standard center verification data, and respectively performing video feature code calculation on the node verification video frame to be judged and the center verification video frame to be judged to obtain a node verification feature code to be judged and a center verification feature code to be judged, judging whether the node verification feature code to be judged is consistent with the standard node verification feature code in the standard node verification data or not, and judging whether the center verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data or not, if the node verification feature code to be judged is consistent with the standard center verification feature code in the standard center verification data, otherwise, the monitoring video data to be judged is false.
2. The blockchain-based remote monitoring method of claim 1, further comprising the steps of:
and when the first monitoring node confirms that the monitoring is finished, the blockchain platform terminal deducts fees from the corresponding account number of the first monitoring node according to a preset charging mode and charges the corresponding account number of the first monitoring center.
3. The blockchain-based remote monitoring method of claim 1, wherein the first preset time is [1 minute, 10 minutes ].
4. The blockchain-based remote monitoring method of claim 1, wherein the first preset time is [1/100,1/20] of the monitoring duration.
5. The blockchain-based remote monitoring method of claim 4, wherein the first monitoring node may send an extended monitoring request including an extended monitoring time to a first monitoring center when the monitoring duration is not reached, and if the first monitoring center receives and confirms the extended monitoring, the first monitoring node still sends real-time monitoring video data to the first monitoring center within the extended monitoring time after the monitoring duration is reached.
6. The blockchain-based remote monitoring method of claim 1, wherein the step S1 further includes the steps of:
if the confirmation monitoring response information is not received, the real-time monitoring video data are sent to the blockchain platform end for storage, and hosting marks are marked on all the stored real-time monitoring video data;
the step S6 specifically includes the following steps:
s61, the blockchain platform end receives an authenticity verification request for the monitoring video data to be judged, judges whether the monitoring video data to be judged has the hosting mark or not, if so, executes a step S62, otherwise, executes a step S63;
s62, obtaining corresponding standard node verification data from the first blockchain and corresponding standard center verification data from the center blockchain according to the to-be-judged monitoring video data, obtaining a to-be-judged node verification video frame from the to-be-judged monitoring video data according to a standard node unique identifier in the standard node verification data and obtaining a to-be-judged center verification video frame from the to-be-judged monitoring video data according to a standard center unique identifier in the standard center verification data, respectively carrying out video feature code calculation on the node verification video frame to be judged and the center verification video frame to be judged to obtain node verification feature codes to be judged and center verification feature codes to be judged, judging whether the node verification feature codes to be judged are consistent with standard node verification feature codes in the standard node verification data or not and judging whether the center verification feature codes to be judged are consistent with standard center verification feature codes in the standard center verification data or not, if the node verification feature codes to be judged are consistent with the standard center verification feature codes in the standard center verification data, the monitoring video data to be judged is true, otherwise, the monitoring video data to be judged is false;
s63, obtaining corresponding standard node verification data from the first block chain according to the to-be-judged monitoring video data, obtaining to-be-judged node verification video frames from the to-be-judged monitoring video data according to the standard node unique identification in the standard node verification data, performing video feature code calculation on the to-be-judged node verification video frames to obtain to-be-judged node verification feature codes, judging whether the to-be-judged node verification feature codes are consistent with the standard node verification feature codes in the standard node verification data, if so, the to-be-judged monitoring video data are true, otherwise, the to-be-judged monitoring video data are false.
7. The blockchain-based remote monitoring method of claim 1, wherein when the blockchain platform end has supervision on all monitoring nodes, the blockchain platform end can selectively acquire part of the monitoring nodes and broadcast the part of the monitoring nodes to all monitoring centers.
8. A blockchain-based remote monitoring method as in any of claims 1-7, wherein the video feature code calculation is a hash value calculation.
9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized by: the processor, when executing the computer program, implements the steps of a blockchain-based remote monitoring method as defined in any of claims 1-8.
10. A computer-readable storage medium having stored thereon a computer program, characterized by: the computer program, when executed by a processor, implements the steps of a blockchain-based remote monitoring method as defined in any of claims 1-8.
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| CN111159474A (en) * | 2020-04-03 | 2020-05-15 | 腾讯科技（深圳）有限公司 | Multi-line evidence obtaining method, device and equipment based on block chain and storage medium |
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