CN112073661B - Tamper-proof video monitoring system for sterile workshop - Google Patents
Tamper-proof video monitoring system for sterile workshop Download PDFInfo
- Publication number
- CN112073661B CN112073661B CN202010768286.3A CN202010768286A CN112073661B CN 112073661 B CN112073661 B CN 112073661B CN 202010768286 A CN202010768286 A CN 202010768286A CN 112073661 B CN112073661 B CN 112073661B
- Authority
- CN
- China
- Prior art keywords
- node
- data
- encryption key
- communication
- data block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/92—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
-
- 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
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Closed-Circuit Television Systems (AREA)
Abstract
The invention relates to the technical field of traceability monitoring of an aseptic production workshop, in particular to a tamper-proof video monitoring system for the aseptic workshop, which comprises a plurality of camera devices and a data center, wherein each camera device comprises a camera, a memory, a first communication module, a second communication module and a controller, the cameras are installed in the aseptic workshop and shoot production pictures in the aseptic workshop, communication connection is established between the first communication modules, the second communication modules are all in communication connection with the data center, the communication connection established between the first communication modules is a one-way communication ring, the camera devices store camera data as data blocks in a period t1, the camera devices sequentially send data block parts with the length L to the next node in the one-way communication ring for storage, and the camera devices upload the data blocks to the data center in a period t 2. The substantial effects of the invention are as follows: by storing the production picture information collected by the camera device in a crossed manner, the deterrence of the video monitoring system is improved.
Description
Technical Field
The invention relates to the technical field of traceability monitoring of an aseptic production workshop, in particular to a tamper-proof video monitoring system for the aseptic workshop.
Background
There are many tiny bacteria in the air, and the production in aseptic workshop or aseptic laboratory can lead to the bacterium in the air to fall into the product if do not carry out clean operation strictly in the experiment, influence the experiment effect, lead to the product unqualified even. In bioproducts or bioproduct production or related experiments, strict management of sterile plants is important. The production process of the sterile workshop is monitored, and the reason can be found by monitoring and tracing the source in time when the non-compliant product appears. The method not only can timely troubleshoot faults, but also can discover possible non-compliant operation, thereby guiding timely correction work and ensuring safe and stable production of a sterile workshop. However, the video monitoring terminal used by the current video monitoring system is easy to be tampered, so that the deterrence force is insufficient, and the safety of a sterile workshop cannot be ensured.
Chinese patent CN109406374a, publication number 2019, 3, 1, a sterile medicine workshop dynamic environment monitoring system, be provided with monitoring system and vacuum system, vacuum system includes vacuum pump and distribution jar, vacuum pump and distribution jar mutual connection, be provided with vacuum line a on the distribution jar, be provided with the isokinetic sampling head on vacuum line a, be provided with vacuum line B on the distribution jar, be equipped with planktonic bacteria sampling dish on the vacuum line B, monitoring system includes sensor and alarm lamp, can monitor the condition of microorganism such as bacterium in the workshop at any time through the sampling head, discover the bacterium surpasses the standard and can indicate network client, can know the bacterium condition in workshop at any time through network client, the bacterium that appears exceeding standard can start alarm device, can guarantee the sterile operational environment in workshop. The technical scheme can monitor the conditions of microbes such as bacteria in a workshop, but cannot be used for checking the reason of bacteria exceeding standards, and is not beneficial to the long-term safe operation of a sterile workshop.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the technical problem of lack of effective monitoring of production activities in sterile workshops exists at present. The system solves the problem that an entrance guard safety system cannot monitor the activity condition of personnel entering the sterile workshop, and improves the monitoring safety of the sterile workshop.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the camera device comprises a plurality of camera devices and a data center, wherein the camera devices are arranged in the sterile workshops and are connected with the same data center, the camera devices comprise cameras, a memory, a first communication module, a second communication module and a controller, the cameras are installed in the sterile workshops and shoot production pictures in the sterile workshops, the cameras, the memory, the first communication module and the second communication module are all connected with the controller, communication connection is established among the first communication modules of the camera devices, the second communication modules of the camera devices are all in communication connection with the data center, the communication connection established among the first communication modules is a one-way communication ring, each first communication module is a node of the one-way communication ring, a communication address of the next communication node of the one-way communication ring is stored in the memory, the camera devices store camera data as data blocks with a period t1, the camera devices cut off the length L of the data blocks, the camera devices sequentially send the data block part with the length L to the next node of the one-way communication ring to store the data blocks, the camera devices upload the data blocks to the data center with a fingerprint data block period t2, and extract data blocks from the fingerprint data center. Production picture information collected by the camera devices is stored in a crossed manner, so that each camera device cannot check video pictures recorded by the camera device, and the data safety is improved. If the data of a certain camera device needs to be tampered, the camera device needs to be broken, and the camera device of the next node of the camera device needs to be broken, so that the difficulty of data tampering is greatly improved, and even if one camera device is damaged, as a part of data stored in the next node exists in the camera device, video monitoring for a long time can be recovered, records of illegal operations can still be found, the deterrence of a video monitoring system is improved, and the tamper resistance of the whole video monitoring system is further improved.
Preferably, the image capturing apparatus randomly generates an encryption and decryption key pair at the end of each period t1, encrypts and stores the data block using the encryption key, stores the decryption keys in time sequence, and uploads the encrypted data block and the corresponding decryption key to the server at the end of the period t 2. The data security is improved by encryption.
Preferably, the image capturing apparatus transmits the encryption key to the next communication node of the unidirectional communication ring at the end of each period t1, receives the encryption key transmitted from the previous communication node, encrypts the data block using the encryption key transmitted from the previous node, stores the data block, and stores the decryption keys in chronological order, and at the end of the period t2, the image capturing apparatus uploads the encrypted data block and the corresponding decryption keys to the server. The encryption key is sent to the next communication node, the data block of the next communication node is encrypted, so that a single camera cannot recover the data of the single camera by itself, the data of each camera can be recovered only by the data of all cameras, the data of each camera cannot be viewed independently, and the data of the single camera is prevented from being tampered.
Preferably, the encryption method used by the image capturing device is a symmetric encryption method, the encryption key is an integer, the image capturing device randomly generates an encryption key pair at the end of each period t1, the nodes in the unidirectional communication ring sequentially communicate according to a preset sequence, the first node in the sequence sends the encryption key to the next communication node in the unidirectional communication ring, and the encryption step includes: after the next communication node receives the encryption key, comparing with the encryption key generated by the node, if the encryption key is even or even odd, using the node to generate an encryption key encryption data block, and transmitting the received encryption key to the next node, otherwise, using the received encryption key encryption data block, transmitting the encryption key generated by the node to the next node, and storing: and storing the encrypted data block and the key generated by the node, wherein after the other nodes in the unidirectional communication ring execute the encryption step and the storage step, the first node in the sequence receives an encryption key, encrypts the data block by using the encryption key, and stores the encrypted data block and the key generated by the node. The decryption key of each camera is not necessarily one of its communication nodes, so that the data of all cameras must be obtained to find the decryption key of each camera, so that the data of the camera cannot be recovered and tampered.
Preferably, the period t2 is n times of the period t1, at the beginning of the period t2, each camera device randomly generates an n-bit random binary number as a reporting encryption key and sends the n-bit random binary number to the data center through the second communication module, after the period t2 is finished, the data block of each camera device is encrypted by using the reporting encryption key and then sent to the data center through the second communication module, after the kth period t1 in the period t2 is finished, k belongs to [1,n ], each camera device determines whether to accept the data block with the length L sent by the previous node in the unidirectional communication ring according to the value of the kth bit of the reporting encryption key, if the kth bit value of the reporting encryption key is 1, the camera device cuts off the length L of the data block and sends the data block to the next node in the unidirectional communication ring, then the data block with the length L sent by the previous node in the unidirectional communication ring is stored with the rest of the data block, if the kth bit value of the reporting encryption key is 0, the data block with the length L sent by the previous node in the unidirectional communication ring is directly sent to the next camera device, and each camera device directly returns the data block of the data block reported by the reporting encryption key. The preferred scheme makes the truncated data block with the length L of each camera device not necessarily stored on the next communication node, so that the data of each camera device can be recovered only by acquiring the data of all the camera devices, and the data of the camera devices cannot be recovered and tampered.
Preferably, at least one virtual node is inserted into the unidirectional communication ring, and the virtual node only performs forwarding of data sent by a previous node to a next node. The virtual node only forwards the data sent by the previous node to the next node without executing other operations, so that the data cannot execute malicious codes and is difficult to crack, and the safety of the whole one-way communication ring is protected.
Preferably, after the data fingerprint of each received data block is extracted by the data center, the digital fingerprint of the data fingerprints of all the data blocks is extracted for the second time, and then the digital fingerprint extracted for the second time is uploaded to the block chain.
Preferably, the method for extracting the digital fingerprint by the data center is to extract a hash value of the data block, and the extracted hash value is used as the digital fingerprint of the data block.
The substantial effects of the invention are as follows: the production picture information collected by the camera devices is stored in a crossed manner, so that each camera device cannot check the video picture recorded by the camera device, and even if one camera device is damaged, the video monitoring for a long time can be recovered due to the fact that a part of data stored in the next node exists in the camera device, the record of illegal operation can still be found, the deterrence of the video monitoring system is improved, and the tamper resistance of the whole video monitoring system is improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment.
Fig. 2 is a schematic diagram of a process of storing image data according to an embodiment.
Wherein: 100. the system comprises a data center, 200, a camera device, 201, a memory, 202, a controller, 203, a camera, 204, a first communication module, 205 and a second communication module.
Detailed Description
The following description will further specifically explain embodiments of the present invention by referring to the accompanying drawings.
The first embodiment is as follows:
a tamper-proof video monitoring system for a sterile workshop is disclosed, as shown in FIG. 1, the present embodiment includes a plurality of camera devices 200 and a data center 100 which are arranged in the sterile workshop, the camera devices 200 of the sterile workshop are connected with the same data center 100, each camera device 200 includes a camera 203, a memory 201, a first communication module 204, a second communication module 205 and a controller 202, the camera 203 is installed in the sterile workshop and shoots production pictures in the sterile workshop, the camera 203, the memory 201, the first communication module 204 and the second communication module 205 are all connected with the controller 202, communication connections are established between the first communication modules 204 of the camera devices 200, the second communication modules 205 of the camera devices 200 are all in communication connection with the data center 100, the communication connections established between the first communication modules 204 are unidirectional communication rings, each first communication module 204 is a node of the unidirectional communication ring, and a communication address of a next communication node of the unidirectional communication ring is stored in the memory 201. As shown in fig. 2, the image capturing device 200 stores the captured image data as data blocks at a period t1, the image capturing device 200 cuts off the data blocks by a length L, the image capturing device 200 sequentially sends the data block portions of the length L to the next node in the unidirectional communication ring for storage, the image capturing device 200 uploads the data blocks to the data center 100 at a period t2, and the data center 100 extracts data fingerprints from the received data blocks and uploads the extracted data fingerprints to the block chain.
The image pickup apparatus 200 transmits the encryption key to the next communication node of the unidirectional communication ring at the end of each period t1, receives the encryption key transmitted from the previous communication node, encrypts the data block using the encryption key transmitted from the previous node, stores the data block, and stores the decryption key in chronological order, and at the end of the period t2, the image pickup apparatus 200 uploads the encrypted data block and the corresponding decryption key to the server.
The encryption key is sent to the next communication node, and the data block of the next communication node is encrypted, so that a single camera device 200 cannot recover the data thereof by itself, and the data of each camera device 200 can be recovered only by the data of all the camera devices 200, so that the data of each camera device 200 cannot be viewed independently, and the data of the single camera device 200 is prevented from being tampered. The encryption method used by the camera device 200 is a symmetric encryption method, the encryption key is an integer, at the end of each period t1, the camera device 200 randomly generates an encryption key pair, the nodes in the unidirectional communication ring sequentially communicate according to a preset sequence, the first node in the sequence sends the encryption key to the next communication node of the unidirectional communication ring, and the encryption step is as follows: after the next communication node receives the encryption key, comparing with the encryption key generated by the node, if the encryption key is even or even odd, using the node to generate an encryption key encryption data block, and transmitting the received encryption key to the next node, otherwise, using the received encryption key encryption data block, transmitting the encryption key generated by the node to the next node, and storing: and storing the encrypted data block and the secret key generated by the node, after the other nodes in the unidirectional communication ring execute the encryption step and the storage step, the first node in the sequence receives an encryption secret key, encrypts the data block by using the encryption secret key, and stores the encrypted data block and the secret key generated by the node. The decryption key of each camera apparatus 200 is not necessarily one of the communication nodes thereof, so that the data of all the camera apparatuses 200 must be obtained to find the decryption key of each camera apparatus 200, so that the data of the camera apparatuses 200 cannot be restored and tampered with.
The period t2 is n times of the period t1, at the beginning of the period t2, each camera device 200 randomly generates an n-bit random binary number as a reporting encryption key and sends the n-bit random binary number to the data center 100 through the second communication module 205, after the period t2 is finished, the data block of each camera device 200 is encrypted by using the reporting encryption key and then sent to the data center 100 through the second communication module 205, after the kth period t1 in the period t2 is finished, k belongs to [1,n ], each camera device 200 determines whether to accept the data block with the length L sent by the last node in the unidirectional communication ring according to the value of the kth bit of the reporting encryption key, if the kth value of the reporting encryption key is 1, the camera device 200 cuts off the length L of the data block and sends the data block to the next node in the unidirectional communication ring, then the data block with the length L sent to the last node in the unidirectional communication ring is stored together with the remaining data block, if the kth value of the reporting encryption key is 0, the data block with the length L sent to the next node in the unidirectional communication ring is directly sent to the camera device, and the next camera device recovers the data block of each camera device according to the data block of the data block 200. The present preferred embodiment makes the truncated data block of length L of each camera apparatus 200 not necessarily stored on the next communication node, so that the data of each camera apparatus 200 can be recovered only by acquiring the data of all camera apparatuses 200, and the data of the camera apparatus 200 cannot be recovered and tampered.
At least one virtual node is inserted in the unidirectional communication ring, and the virtual node only executes forwarding of data sent by the previous node to the next node. After extracting the data fingerprint from each received data block, the data center 100 extracts the digital fingerprint from the data fingerprints of all the data blocks twice, and then uploads the digital fingerprints extracted twice to the block chain. The method for extracting the digital fingerprint by the data center 100 is to extract the hash value of the data block, and the extracted hash value is used as the digital fingerprint of the data block.
The beneficial technical effects of this embodiment are: by storing the production picture information acquired by the camera devices 200 in a crossed manner, each camera device 200 cannot check the video picture recorded by the camera device, and even if one camera device 200 is damaged, because a part of the data stored in the next node exists in the camera device 200, the video monitoring for a long time can be recovered, the record of illegal operation can still be found, the deterrence of the video monitoring system is improved, and the tamper resistance of the whole video monitoring system is improved.
The above embodiment is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the technical scope of the claims.
Claims (6)
1. A tamper-resistant video surveillance system for use in an aseptic plant,
the system comprises a plurality of camera devices and a data center, wherein the camera devices are arranged in a sterile workshop and are connected with the same data center, each camera device comprises a camera, a memory, a first communication module, a second communication module and a controller, the cameras are arranged in the sterile workshop and shoot production pictures in the sterile workshop, the cameras, the memories, the first communication modules and the second communication modules are all connected with the controller, communication connection is established among the first communication modules of the camera devices, the second communication modules of the camera devices are all in communication connection with the data center, the communication connection established among the first communication modules is a one-way communication ring, each first communication module is a node of the one-way communication ring, a communication address of the next communication node of the one-way communication ring is stored in the memory, the camera devices store camera data as data blocks in a period t1, the camera devices cut off the data blocks to a length L after the period t1 is over, the camera devices sequentially send the data block parts of the length L to the next node of the one-way communication ring for storage, the camera devices upload the data blocks to the data center in a period t2, and extract fingerprint data blocks and upload fingerprint data blocks to the data center;
the camera device randomly generates an encryption and decryption key pair at the end time of each period t1, data blocks are encrypted by using the encryption key and then stored, the decryption keys are stored in time sequence, and at the end time of the period t2, the camera device uploads the encrypted data blocks and the corresponding decryption keys to a server;
the camera device sends the encryption key to the next communication node of the unidirectional communication ring at the end time of each period t1, receives the encryption key sent by the previous communication node, encrypts the data block by using the encryption key sent by the previous node and stores the data block, and stores the decryption keys in time sequence by using the decryption keys, and at the end time of the period t2, the camera device uploads the encrypted data block and the corresponding decryption keys to the server.
2. The tamper-resistant video surveillance system for an aseptic plant of claim 1,
the encryption method used by the camera device is a symmetric encryption method, the encryption key is an integer, the camera device randomly generates an encryption key pair at the end of each period t1, the nodes in the unidirectional communication ring sequentially communicate according to a preset sequence, the first node in the sequence sends the encryption key to the next communication node of the unidirectional communication ring,
an encryption step: after the next communication node receives the encryption key, comparing with the encryption key generated by the node, if the encryption key is even or odd, using the node to generate the encryption key to encrypt the data block and transmitting the received encryption key to the next node, otherwise, using the received encryption key to encrypt the data block and transmitting the encryption key generated by the node to the next node,
a storage step: storing the encrypted data block and the key generated by the node,
after the other nodes in the unidirectional communication ring execute the encryption step and the storage step, the first node in the sequence receives an encryption key, encrypts the data block by using the encryption key, and stores the encrypted data block and the key generated by the node.
3. The tamper-resistant video surveillance system for an aseptic plant of claim 1,
the period t2 is n times of the period t1, at the beginning of the period t2, each camera device randomly generates an n-bit random binary number as a reporting encryption key and sends the n-bit random binary number to the data center through a second communication module, after the period t2 is finished, the data block of each camera device is encrypted by using the reporting encryption key and then sent to the data center through the second communication module, after the kth period t1 in the period t2 is finished, k belongs to [1,n ], each camera device determines whether to receive the data block with the length L sent by the previous node in the unidirectional communication ring according to the value of the kth bit of the reporting encryption key, if the kth value of the reporting encryption key is 1, the camera device cuts off the length L of the data block and sends the data block to the next node in the unidirectional communication ring, then the data block with the length L sent by the previous node in the unidirectional communication ring is stored with the rest of data, if the kth value of the reporting encryption key is 0, the data block with the length L sent by the previous node in the unidirectional communication ring is directly sent to the camera device, and the data block of the reporting encryption key is directly sent to the camera device.
4. Tamper-resistant video surveillance system for aseptic plants according to claim 1 or 2,
at least one virtual node is inserted in the unidirectional communication ring, and the virtual node only carries out forwarding of data sent by the previous node to the next node.
5. Tamper-resistant video surveillance system for aseptic plants according to claim 1 or 2,
and after the data center extracts the data fingerprints from each received data block, the data fingerprints of all the data are subjected to secondary extraction of the digital fingerprints, and then the secondary extracted digital fingerprints are uploaded to the block chain.
6. The tamper-resistant video surveillance system for an aseptic plant of claim 1,
the method for extracting the digital fingerprint of the data center is to extract the hash value of the data block, and the extracted hash value is used as the digital fingerprint of the data block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010768286.3A CN112073661B (en) | 2020-08-03 | 2020-08-03 | Tamper-proof video monitoring system for sterile workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010768286.3A CN112073661B (en) | 2020-08-03 | 2020-08-03 | Tamper-proof video monitoring system for sterile workshop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112073661A CN112073661A (en) | 2020-12-11 |
| CN112073661B true CN112073661B (en) | 2022-10-25 |
Family
ID=73656856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010768286.3A Active CN112073661B (en) | 2020-08-03 | 2020-08-03 | Tamper-proof video monitoring system for sterile workshop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112073661B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113099264A (en) * | 2021-04-21 | 2021-07-09 | 湖南天河国云科技有限公司 | Block chain monitoring video tamper-proof method and system based on global features |
| CN113378220B (en) * | 2021-06-09 | 2022-07-22 | 浙江旅游职业学院 | Central kitchen cooking traceability system based on block chain |
| CN115208906A (en) * | 2022-07-08 | 2022-10-18 | 深圳市汇云通讯科技有限公司 | Video management method, video management system and video management terminal based on block chain |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018037148A1 (en) * | 2016-08-22 | 2018-03-01 | Nokia Technologies Oy | Method and apparatus for blockchain verification of healthcare prescriptions |
| WO2018046009A1 (en) * | 2016-09-12 | 2018-03-15 | 上海鼎利信息科技有限公司 | Block chain identity system |
| CN110995739A (en) * | 2019-12-16 | 2020-04-10 | 三只松鼠股份有限公司 | Industry internet control cloud platform |
| CN111132151A (en) * | 2020-03-27 | 2020-05-08 | 华立科技股份有限公司 | High-reliability user electricity metering device adopting block chain technology |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11172367B2 (en) * | 2016-05-25 | 2021-11-09 | Nokia Technologies Oy | Method, device and system for utilizing block chain to define trusted circle |
| US10893038B2 (en) * | 2016-09-14 | 2021-01-12 | Cognitive Strategies, LLC | Attributed network enabled by search and retrieval of privity data from a registry and packaging of the privity data into a digital registration certificate for attributing the data of the attributed network |
| US20190280863A1 (en) * | 2018-03-06 | 2019-09-12 | BizOne Ltd. | Recovery of secret data in a distributed system |
-
2020
- 2020-08-03 CN CN202010768286.3A patent/CN112073661B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018037148A1 (en) * | 2016-08-22 | 2018-03-01 | Nokia Technologies Oy | Method and apparatus for blockchain verification of healthcare prescriptions |
| WO2018046009A1 (en) * | 2016-09-12 | 2018-03-15 | 上海鼎利信息科技有限公司 | Block chain identity system |
| CN110995739A (en) * | 2019-12-16 | 2020-04-10 | 三只松鼠股份有限公司 | Industry internet control cloud platform |
| CN111132151A (en) * | 2020-03-27 | 2020-05-08 | 华立科技股份有限公司 | High-reliability user electricity metering device adopting block chain technology |
Non-Patent Citations (1)
| Title |
|---|
| 基于区块链的数据管理方案;周艺华等;《信息安全研究》;20200105(第01期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112073661A (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112073661B (en) | Tamper-proof video monitoring system for sterile workshop | |
| CN106534171B (en) | Security authentication method, device and terminal | |
| CN104867217A (en) | Community monitoring and management system | |
| CN106789842B (en) | Security development middleware and management and control method for mobile power inspection terminal | |
| CN103714599A (en) | WLAN-based iris entrance guard system and communication method | |
| CN105743637A (en) | Intelligent substation inspection system | |
| CN114005244A (en) | Building engineering management video acquisition system | |
| CN115641067A (en) | Student information integrated management system based on cloud platform | |
| US11374933B2 (en) | Securing digital data transmission in a communication network | |
| CN113992384B (en) | Secret communication method based on fractional Fourier transform order multiplexing | |
| CN114500574A (en) | Monitoring method, device and medium for improving grain depot safety based on block chain | |
| KR20210145632A (en) | Method and apparatus for managing integrally closed-circuit television providing abuse event information | |
| CN101296224A (en) | P2P flux recognition system and method | |
| CN116185295A (en) | Information safety storage device | |
| CN110049487A (en) | A kind of high safety encryption storage remote destroying management system and its working method based on Beidou | |
| CN106603977B (en) | Video acquisition method and device based on Linux multi-core environment | |
| CN108257045A (en) | A kind of verification method based on household services | |
| CN115248940A (en) | Video evidence storing method, verification method and device based on block chain | |
| CN101567095A (en) | Method and device for managing fire protection data | |
| CN111783594A (en) | Alarm method and device and electronic equipment | |
| RU2012110814A (en) | METHOD FOR CHECKING THE RELIABILITY OF THE MESSAGE OF MONITORING ROAD TRAFFIC | |
| CN116094841B (en) | Behavior identification method and device in encrypted channel and electronic equipment | |
| Jayakrishnan et al. | Empirical survey on advances of network forensics in the emerging networks | |
| CN118138714A (en) | Intelligent park safety monitoring system and application method thereof | |
| CN117313132A (en) | Tour inspection method and system based on big data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |