CN110544096B - Block chain-based data acquisition method, device, equipment and storage medium - Google Patents
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Abstract
The application discloses a data acquisition method, device and equipment based on a blockchain and a storage medium, and belongs to the technical field of blockchains. According to the technical scheme provided by the embodiment of the application, the searching requirement of the missing object is diffused through the blockchain, so that each node device in the blockchain system can be quickly synchronized to the searching requirement, the searching work of the missing object is performed based on the searching requirement and the data monitored by the node device, various resources are mobilized to collect the data, the diffusion range is greatly enlarged, the timeliness is ensured, and a feasible and effective searching mode is provided for searching the missing object.
Description
Technical Field
The present application relates to the field of blockchain technologies, and in particular, to a blockchain-based data acquisition method, apparatus, device, and storage medium.
Background
With the development of society, when missing events are encountered, people can also spread messages by issuing relevant information of the missing people, such as face features, clothes and the like, on a social platform besides alarming, so that more people can participate in searching for the missing population, and thus missing relatives and friends can be found. However, the social platform has limitations that, firstly, the social platform is operated based on the relationship established between people, so that the diffusion degree of the social platform is limited, in addition, the social platform has a certain timeliness, and generally, after a message is released, the message is submerged by other messages and cannot be continuously diffused, so that a way with stronger diffusion and better timeliness is needed to be carried out for searching for missing people.
Disclosure of Invention
The embodiment of the application provides a data acquisition method, device, equipment and storage medium based on a blockchain, which can solve the problem of poor diffusivity and timeliness. The technical scheme is as follows:
in one aspect, a method for obtaining data based on a blockchain is provided, the method comprising:
when any block is stored on a block chain of the block chain system, if the block contains an information acquisition request for searching a missing object, extracting a first identity identification and description information of the missing object carried by the information acquisition request;
detecting the monitoring data acquired by the node equipment according to the description information of the missing object;
and when detecting that the monitoring data contains target monitoring data matched with the description information, storing the first identity identification and the target monitoring data on the blockchain correspondingly.
In one aspect, there is provided a blockchain-based data acquisition device, the device comprising:
the extraction module is used for extracting a first identity identification and description information of the missing object carried by the information acquisition request when any block is stored on a blockchain of the blockchain system and the information acquisition request for searching the missing object is contained in the block;
The detection module is used for detecting the monitoring data acquired by the node equipment according to the description information of the missing object;
and the storage module is used for storing the first identity identification and the target monitoring data corresponding to the target monitoring data onto the blockchain when the monitoring data contain the target monitoring data matched with the description information.
In one possible implementation, the detection module is configured to perform at least one of the following steps:
detecting the monitoring data acquired in the stored target time period on the node equipment according to the description information of the missing object;
and detecting the monitoring data acquired in real time on the node equipment according to the description information of the missing object.
In one possible implementation, the apparatus further includes:
the receiving module is used for receiving an identification information storage request, wherein the identification information storage request carries a second identity mark of an object to be chained and corresponding first object information, and the first object information is used for representing biological identification information of the object;
the storage module is further used for correspondingly storing the first object information and the second identity to the blockchain.
In one possible implementation manner, the receiving module is further configured to receive an object information storage request, where the object information storage request carries the second identity identifier and corresponding second object information, and the second object information is used to represent behavior information of the object;
the storage module is further used for integrating object information belonging to the same information category in the first object information and the second object information according to the information category, and storing the integrated object information onto the blockchain.
In one possible implementation, the information categories include at least one of a photo category, a biometric information category, and an account number category.
In one possible implementation manner, the detection module is configured to detect, when the description information of the missing object includes a photo, at least one of image monitoring data and video monitoring data acquired by the node device, and if any one of the image monitoring data and the video monitoring data includes the missing object indicated by the photo, determine that the detected monitoring data includes target monitoring data matched with the description information.
In one possible implementation manner, the device further comprises an intercepting module, configured to intercept, from the monitoring data, partial data of the occurrence of the missing object indicated by the photograph, and use the partial data as the target monitoring data.
In one possible implementation manner, the apparatus further includes a first notification module, configured to send a monitoring result notification to a target user when it is detected that the monitoring data includes target monitoring data that matches the description information, where the monitoring result notification is used to notify that the missing object is monitored in a monitoring area of the node device.
In one possible implementation manner, the apparatus further includes a second notification module, configured to extract target monitoring data corresponding to the first identity identifier in a target block if the target block is stored on the blockchain;
and sending a monitoring result notice to a target user according to the extracted at least one piece of target monitoring data, wherein the monitoring result notice is used for informing that the missing object is monitored in a monitoring area of source node equipment of the at least one piece of target monitoring data.
In one aspect, a computer device is provided that includes one or more processors and one or more memories having stored therein at least one piece of program code that is loaded and executed by the one or more processors to implement the operations performed by the blockchain-based data acquisition method.
In one aspect, a computer readable storage medium having at least one program code stored therein is provided, the at least one program code loaded and executed by a processor to perform operations performed by the blockchain-based data acquisition method.
According to the technical scheme provided by the embodiment of the application, the searching requirement of the missing object is diffused through the blockchain, so that each node device in the blockchain system can be quickly synchronized to the searching requirement, the searching work of the missing object is performed based on the searching requirement and the data monitored by the node device, various resources are mobilized to collect the data, the diffusion range is greatly enlarged, the timeliness is ensured, and a feasible and effective searching mode is provided for searching the missing object.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an implementation environment of a blockchain-based data acquisition method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an example of information provided by an embodiment of the present application;
FIG. 3 is a flowchart of a data acquisition method according to an embodiment of the present application;
FIG. 4 is a schematic block diagram of an embodiment of the present application;
fig. 5 is a schematic structural diagram of a data acquisition device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a server according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
Blockchains are novel application modes of computer technologies such as distributed data storage, point-to-point transmission, consensus mechanisms, encryption algorithms, and the like. The Blockchain (Blockchain), which is essentially a decentralised database, is a string of data blocks that are generated by cryptographic means in association, each data block containing a batch of information of network transactions for verifying the validity of the information (anti-counterfeiting) and generating the next block. The blockchain may include a blockchain underlying platform, a platform product services layer, and an application services layer.
The blockchain underlying platform may include processing modules for user management, basic services, smart contracts, operation monitoring, and the like. The user management module is responsible for identity information management of all blockchain participants, including maintenance of public and private key generation (account management), key management, maintenance of corresponding relation between the real identity of the user and the blockchain address (authority management) and the like, and under the condition of authorization, supervision and audit of transaction conditions of certain real identities, and provision of rule configuration (wind control audit) of risk control; the basic service module is deployed on all block chain node devices, is used for verifying the validity of a service request, recording the service request on a storage after the effective request is identified, for a new service request, the basic service firstly analyzes interface adaptation and authenticates the interface adaptation, encrypts service information (identification management) through an identification algorithm, and transmits the encrypted service information to a shared account book (network communication) in a complete and consistent manner, and records and stores the service information; the intelligent contract module is responsible for registering and issuing contracts, triggering contracts and executing contracts, a developer can define contract logic through a certain programming language, issue the contract logic to a blockchain (contract registering), invoke keys or other event triggering execution according to the logic of contract clauses to complete the contract logic, and simultaneously provide a function of registering contract upgrading; the operation monitoring module is mainly responsible for deployment in the product release process, modification of configuration, contract setting, cloud adaptation and visual output of real-time states in product operation, for example: alarms, monitoring network conditions, monitoring node device health status, etc.
The platform product service layer provides basic capabilities and implementation frameworks of typical applications, and developers can complete the blockchain implementation of business logic based on the basic capabilities and the characteristics of the superposition business. The application service layer provides the application service based on the block chain scheme to the business participants for use. Through the basic architecture of the blockchain, various applications can be realized, for example, the embodiment of the application provides a blockchain-based data acquisition method, and the realization of the specific acquisition method can be realized through intelligent contracts configured on the blockchain, so that the self-running and active data processing process without human participation is realized, the intervention of technicians or general personnel is reduced, and the transmission and diffusion intensity of data is greatly superior to that of some related technologies due to the modes of the real reliability, broadcasting and the like of the data specific to the blockchain. In the following, an embodiment of the present application will be described with reference to a blockchain system as an implementation environment.
Fig. 1 is a schematic diagram of an implementation environment of a data acquisition method according to an embodiment of the present application, and referring to fig. 1, the implementation environment may include a plurality of node devices, where the plurality of node devices may be node devices in a blockchain system, and any node device in the blockchain system may perform one or more steps in the data acquisition method according to the embodiment of the present application. It should be noted that the node device may have a monitoring function, for example, as shown in the above diagram of fig. 2, the node device may be a mobile terminal, a magnetic card identification device, an account login device, a video monitoring device, an audio monitoring device, a DNA monitoring device, etc., and of course, the node device may also be a server of an application platform, where the application platform may provide various network services, so that any user may log in or operate according to an account may be stored in the application platform. The node device may also be a platform server or the like associated with these devices, which is not limited by the embodiments of the present application. In addition, the blockchain system can also comprise node equipment belonging to a medical institution, and the node equipment can be used as a person information collector for storing new person information into the blockchain system. For example, as also shown in the lower diagram of fig. 2, when any natural person is born, the medical institution may enter the identification number, DNA, image, blood type, and other object information of the natural person into its node device, and the node device stores the object information onto the blockchain of the blockchain system to spread onto other node devices of the blockchain, which is known as a ul. Of course, when the node device stores information of a natural person for the first time, a corresponding object identifier may be allocated to the natural person first to uniquely identify the natural person on the blockchain, and when storing, information storage may also be performed based on the allocated object identifier, so that various information corresponding to the object identifier may be determined by using an object identifier in the blockchain system. In a blockchain system, the object identification may be a public key.
The plurality of computer devices may be servers or terminals, which is not particularly limited in the embodiment of the present application.
Fig. 3 is a flowchart of a data acquisition method based on a blockchain, which may be applied to any node device in the blockchain system according to an embodiment of the present application, referring to fig. 3, the embodiment may specifically include the following steps:
300. when a first node device in the blockchain system receives a missing object release request, according to missing object information carried in the missing object release request, a database of the first node device is queried to obtain a first identity identification of the missing object.
The first node device may be a server of any institution, and the individual user or the user of a institution may issue the missing object through the first node device. The specific issuing process can be realized through user side software provided by a login block chain system, for example, a user can input missing object information such as an identification card number, a recent photo and description information of the missing object, such as missing time, missing place and the like, in the software, the missing object information is used as a reference for data acquisition, and the node equipment can trigger a missing object issuing request carrying the missing object information and the description information of the missing object based on the information input by the user. For the first node device, a database for storing the first identity identifier of the object and the object in the blockchain system may be maintained, so that when any missing object issues a request, the first node device may query the database according to the identification card number provided by the user, and obtain the first identity identifier of the missing object in the blockchain system.
In the above step, taking the case that the missing object is already recorded in the blockchain system as an example, in one possible implementation manner, the blockchain system may further allocate a first identity identifier of a unique identifier to the missing object based on the request issued by the missing object, so that the node device in the blockchain system may be triggered to perform real-time monitoring to find the missing object, and accordingly, the above step 300 may be replaced by: when a first node device in a blockchain system receives a missing object release request, according to missing object information carried in the missing object release request, querying a database of the first node device, when a first identity of the missing object is queried, executing a step 301, when the first identity of the missing object is not queried, applying for registration of the missing object information to the blockchain system, acquiring the registered first identity, and executing a step 301.
In one possible implementation manner, the node device in the blockchain system can correspondingly store the first identity identifier of the object stored on the blockchain and the object information in the database of the node device, and the data stored through the blockchain is already subjected to system consensus, so that the data has strong authenticity, local identity identifier inquiry can be performed based on the database storage under the chain, and certainly, the authenticity of the stored data can be determined by performing reverse inquiry based on the data stored in the database, so that the authenticity and reliability of the stored data of the database are ensured.
301. The first node device initiates an information acquisition request in a blockchain system based on the first identity of the missing object and the description information of the missing object carried by the missing object release request.
Steps 300 and 301 provide for the first node device to translate the missing object issue request, such that information about the missing object may be collected based on its identity in the blockchain system.
The first node device may use the information acquisition request as a transaction data, and broadcast the information acquisition request in the blockchain system, so that each node device in the blockchain system may receive the information acquisition request and perform verification, thereby implementing a consensus process.
302. When the blockchain system passes the information acquisition request consensus, the information acquisition request is stored in the form of blocks on the blockchain of the blockchain system.
It should be noted that, in the embodiment of the present application, the block is not limited to which node device in the blockchain system generates the block, and any node device in the blockchain system can compete for the node device generating the block. Taking the first node device generating the block as an example, the blockchain system can perform consensus on the block after the first node device generates the block to determine whether the information in the block is accurate, that is, verify the information in the block. In one possible implementation, after the first node device generates the block, the first node device may broadcast the block to other node devices, the other node devices may verify the block, and each of the other node devices may broadcast a verification result in the blockchain system, and when the number of node devices in the blockchain system for which the verification result is passed is greater than a target proportion, the blockchain system may determine that the block is commonly passed, and add the block to a blockchain in the blockchain system. The target proportion may be set by a developer, which is not limited in the embodiment of the present application. The consensus process may be implemented based on a consensus mechanism, which may be, for example, a workload proof mechanism, a equity proof mechanism, a share authorization proof mechanism, etc. It should be noted that the above consensus process is only an exemplary description, and the embodiments of the present application are not limited thereto.
In the blockchain technology, data can be stored in blocks in an electronic record form, in the embodiment of the application, referring to fig. 4, a blockchain consists of a plurality of blocks, an initial block comprises a block head and a block main body, an input information characteristic value, a version number, a time stamp and a difficulty value are stored in the block head, and input information is stored in the block main body; the next block of the starting block takes the starting block as a father block, the next block also comprises a block head and a block main body, the block head stores the input information characteristic value of the current block, the block head characteristic value of the father block, the version number, the timestamp and the difficulty value, and the like, so that the block data stored in each block in the block chain are associated with the block data stored in the father block, and the safety of the input information in the block is ensured. Still taking the processing procedure of the first node device as an example, the first node device may package the transaction data collected in a period of time, and generate a block, where the block is commonly recognized by the blockchain system, and after the block is commonly recognized, the transaction data in the block may be spread to any node device in the blockchain system. In one possible implementation, the process of generating the block by the first node device may be: the last block in the block chain is called as the last block, the first node device can acquire all information of the last block from the block chain, so that a block head characteristic value of the last block can be generated based on all information of the last block, characteristic value calculation is performed on a user public key, transaction data and the like which are required to be stored in the block, a block main characteristic value of the block is obtained, and further, the first node device can store the block head characteristic value of the last block and the block main characteristic value of the block to the block head of the block, store a user public key, transaction data and the like to the block main body of the block, so that the block is generated. Thus, the previous block and the block are related by the block head characteristic value of the previous block, and the purpose of connecting blocks in series in the block chain can be achieved, so that the next block can be used for verifying whether the previous block is correct or not. It should be noted that the above description of the block generation process is only an exemplary description of a block generation manner, and the embodiment of the present application does not limit what kind of block generation manner is specifically adopted.
It should be noted that, when the transaction data is packaged, the timeliness may be improved by a special packaging mechanism, for example, when any transaction data is received, if the transaction data is an information acquisition request, if the amount of the transaction data to be packaged in the current transaction pool is less than the target packaging amount, the difference between the target packaging amount and the amount of the transaction data to be packaged is determined, and preset transaction data equal to the difference is generated and put into the transaction pool, so as to trigger the packaging of the transaction data. Of course, in another implementation manner, the information acquisition request may be marked with a high packing priority, so that when packing is performed, the information acquisition request may be packed according to the high packing priority, and the information may be limited to be acquired, so that the information may be diffused into the blockchain system at the first time, so as to improve timeliness of the information.
303. When any block is stored on the blockchain of the blockchain system, if the block contains an information acquisition request for searching the missing object, the second node equipment extracts the first identity mark carried by the information acquisition request and the description information of the missing object.
For any node device in the blockchain system, a block stored onto the blockchain may be detected to determine if the block contains an information retrieval request to find a missing object. In one possible implementation manner, when any node device receives a new block, the block content of the new block is detected, when any transaction data in the block content has a target type identifier, the transaction data is determined to be an information acquisition request, and the identity identifier carried by the information acquisition request and the description information of the missing object are extracted.
304. And the second node equipment detects the monitoring data acquired in real time on the second node equipment according to the description information of the missing object.
In one possible implementation, this step 304 may be implemented using the following procedure: and when the descriptive information of the missing object comprises a photo, detecting at least one of image monitoring data and video monitoring data acquired by the node equipment, and if any one of the image monitoring data and the video monitoring data comprises the missing object indicated by the photo, determining that the detected monitoring data comprises target monitoring data matched with the descriptive information of the missing object. Of course, for the description information, the information such as the identity card identifier of the missing object is further included, and for the second node device, detection may be performed according to whether the monitoring data collected in real time has data related to the identity card identifier, for example, when the monitoring data includes a consumption behavior record corresponding to the identity card identifier, it is determined that the target monitoring data is detected, and when the monitoring data includes an application login record corresponding to the identity card identifier, it is determined that the target monitoring data is detected.
Of course, if the node device is a video monitoring device, the detection may be performed based on the video monitoring data, and if the node device is an audio monitoring device, the detection may be performed based on the audio monitoring data, or, for the video monitoring device, the detection may be performed based on both the video monitoring data and the audio monitoring data, and when any one of the detection results indicates that the monitoring data includes the target monitoring data, it is considered that the target monitoring data of the missing object is detected, so as to avoid missed detection caused by the problems of shooting angle and the like.
In the foregoing step 304, according to the description information of the missing object, one possible implementation manner of detecting the monitoring data acquired by the node device is to determine whether the node device detects the missing object by detecting the monitoring data acquired by the node device after the node device acquires the information acquisition request, so as to achieve the purpose of real-time detection, and in one possible implementation manner, the node device may also detect the monitoring data acquired in the target period already stored on the node device according to the description information of the missing object and the first identity identifier, where the detection is performed on the monitoring data already stored on the node device for a certain period of time, which may enable tracking of the missing object, and if the missing object can be detected in the monitoring data for a certain period of time, determine the travel path of the missing object, and may be used as a reference data for searching the missing object later, so as to determine a feasible range.
It should be noted that the above detection process may further include determination of valid monitoring data and invalid monitoring data, that is, if the monitoring data includes monitoring data matching with the description information of the missing object at the time of detection, but if it is determined by living body detection that the monitoring data is not a real person, the monitoring data is determined to be invalid monitoring data, or if the node device is not a legal device, the monitoring data is determined to be invalid monitoring data, and of course, the above determination conditions for validity and invalidity may be determined according to actual monitoring requirements, which is not limited in the embodiment of the present invention.
305. When detecting that the monitoring data contains target monitoring data matched with the description information, the second node device stores the first identity identifier and the target monitoring data of the missing object on the blockchain.
Before storing the target monitoring data, part of data of the object indicated by the photo can be intercepted from the monitoring data, and the part of data is used as the target monitoring data so as to avoid excessive occupation of storage space. The specific store-to-blockchain process is not described in detail herein.
306. The second node device sends a monitoring result notification to the target user, the monitoring result notification being used to inform that the missing object is monitored in the monitoring area of the node device.
The target user may be a personal user or an organization user who initiates the query of the missing object, or may be a user of a related police service organization, which is not limited in the embodiment of the present invention. In one possible implementation manner, for the blockchain system, when any node device monitors a missing object, a notification process can be performed to achieve the purpose of prompt, and after each node device determines target monitoring data, the target monitoring data can be sent to a specific node device for comprehensive analysis so as to monitor the missing object in a centralized data mode.
In order to realize the object searching, any node device in the blockchain system can perform system registration on the monitored object, that is, if the node device receives an identification information storage request, the identification information storage request carries a second identity mark of an object to be linked and corresponding first object information, and the first object information is used for representing biological identification information of the object; and correspondingly storing the first object information and the second identity mark on the blockchain. The second identity may be a blockchain system assignment that is unique to identify the object in the blockchain system, e.g., the second identity may be a public key of the user. For example, the above-mentioned entering can be performed by medical institutions through their servers at the time of birth of natural people, and the medical staff performs the entry of identification cards, DNA, blood types, photos and the like so as to provide personal protection from the beginning to the end.
When any object is already linked, each node device may update the object information based on the information related to the object acquired in real time on the node device, that is, the method further includes: receiving an object information storage request, wherein the object information storage request carries the second identity identifier and corresponding second object information, and the second object information is used for representing behavior information of the object; and integrating the object information belonging to the same information category in the first object information and the second object information according to the information category, and storing the integrated object information to the blockchain. The process adopts a full-scale storage mode, namely, each time the second object information corresponding to the second identity is received, the stored first object information corresponding to the identity can be obtained from the blockchain, the stored information and the newly received object information are integrated, and the integrated object information is stored, so that the subsequent query process is more convenient and rapid. Further, the above-mentioned integration based on categories may enable the matching process to be more accurate, and the matching may be correspondingly performed according to the category of the description information and the category of the information in the target monitoring data, so as to determine the credibility of the target monitoring data and so on according to the weight of each category of the information.
Of course, the above storage process may also adopt an incremental storage manner, that is, each time object information corresponding to an identity is received, the newly received object information is directly stored after the consensus passes. The storage referred to herein refers to storage on the blockchain, that is, storage based on a consensus mechanism, and the specific flow may be referred to as the description in step 302, which is not repeated herein.
It should be noted that, the target monitoring data obtained through real-time detection may also be stored as object information, that is, when each node device receives the target monitoring data, integrated storage or separate storage of the target monitoring data may be implemented according to the above process, which is not limited in the embodiment of the present invention.
It should be noted that the above information categories include at least one category of photo category, video category, audio category, biometric information category, account number category, where the biometric information category may include, for example, DNA, blood type, height, weight, etc., which is not limited in the embodiment of the present invention. For example, for an account belonging to the same account category, the account may be stored under the account category, so as to store multiple accounts of one object in association, and it should be noted that, association between accounts may be determined based on a registration source of the accounts, for example, the accounts are all registered based on the same id number, and the account may be correspondingly stored under one account category.
In the process provided by the embodiment of the present invention, a mode that the node device notifies the target user when detecting the target monitoring data is adopted, and in another possible implementation manner, the node device may not notify, but send the target monitoring data to a specific node device for comprehensive judgment, that is, the step 306 may include: the second node device stores the detected target monitoring data into a blockchain, and for a third node device for data analysis, if a target block is stored on the blockchain, the second node device extracts the target monitoring data corresponding to the first identity identifier in the target block; and sending a monitoring result notice to a target user according to the extracted at least one piece of target monitoring data, wherein the monitoring result notice is used for informing that the missing object is monitored in a monitoring area of source node equipment of the at least one piece of target monitoring data.
Each node device corresponds to a monitoring area, and if the monitoring device detects the target monitoring data of the missing object, the missing object is shown to appear in the monitoring area of the node device, so that the monitoring area can be carried when the monitoring result notification is carried, in addition, the monitoring result notification can also carry time information for indicating the time when the missing object appears in the monitoring area, and can also carry behavior information, for example, the missing object swipes a card at a certain place at a certain time, so as to indicate the behavior of the missing object in the monitoring area.
According to the technical scheme provided by the embodiment of the application, the searching requirement of the missing object is diffused through the blockchain, so that each node device in the blockchain system can be quickly synchronized to the searching requirement, the searching work of the missing object is performed based on the searching requirement and the data monitored by the node device, various resources are mobilized to collect the data, the diffusion range is greatly enlarged, the timeliness is ensured, and a feasible and effective searching mode is provided for searching the missing object.
Fig. 5 is a schematic structural diagram of a data acquisition device according to an embodiment of the present application, referring to fig. 5, the device includes:
the extracting module 501 is configured to, when any block is stored in a blockchain of the blockchain system, extract a first identity identifier and description information of a missing object carried by an information acquisition request if the block includes the information acquisition request for searching the missing object;
the detection module 502 is configured to detect, according to the description information of the missing object, the monitoring data acquired by the node device;
and the storage module 503 is configured to store the first identity identifier and the target monitoring data on the blockchain in correspondence when it is detected that the monitoring data includes the target monitoring data that matches the description information.
In one possible implementation, the detection module is configured to perform at least one of the following steps:
detecting the monitoring data acquired in the stored target time period on the node equipment according to the description information of the missing object;
and detecting the monitoring data acquired in real time on the node equipment according to the description information of the missing object.
In one possible implementation, the apparatus further includes:
the receiving module is used for receiving an identification information storage request, wherein the identification information storage request carries a second identity mark of an object to be chained and corresponding first object information, and the first object information is used for representing biological identification information of the object;
the storage module is further used for correspondingly storing the first object information and the second identity to the blockchain.
In one possible implementation manner, the receiving module is further configured to receive an object information storage request, where the object information storage request carries the second identity identifier and corresponding second object information, and the second object information is used to represent behavior information of the object;
the storage module is further used for integrating object information belonging to the same information category in the first object information and the second object information according to the information category, and storing the integrated object information onto the blockchain.
In one possible implementation, the information categories include at least one of a photo category, a biometric information category, and an account number category.
In one possible implementation manner, the detection module is configured to detect, when the description information of the missing object includes a photo, at least one of image monitoring data and video monitoring data acquired by the node device, and if any one of the image monitoring data and the video monitoring data includes the missing object indicated by the photo, determine that the detected monitoring data includes target monitoring data matched with the description information.
In one possible implementation manner, the device further comprises an intercepting module, configured to intercept, from the monitoring data, partial data of the occurrence of the missing object indicated by the photograph, and use the partial data as the target monitoring data.
In one possible implementation manner, the apparatus further includes a first notification module, configured to send a monitoring result notification to a target user when it is detected that the monitoring data includes target monitoring data that matches the description information, where the monitoring result notification is used to notify that the missing object is monitored in a monitoring area of the node device.
In one possible implementation manner, the apparatus further includes a second notification module, configured to extract target monitoring data corresponding to the first identity identifier in a target block if the target block is stored on the blockchain;
and sending a monitoring result notice to a target user according to the extracted at least one piece of target monitoring data, wherein the monitoring result notice is used for informing that the missing object is monitored in a monitoring area of source node equipment of the at least one piece of target monitoring data.
Any combination of the above optional solutions may be adopted to form an optional embodiment of the present application, which is not described herein.
It should be noted that: in the data acquisition method based on the blockchain provided in the above embodiment, only the division of the above functional modules is used for illustration, and in practical application, the above functional allocation may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules, so as to complete all or part of the functions described above. In addition, the blockchain-based data acquisition device and the blockchain-based data acquisition method provided in the foregoing embodiments belong to the same concept, and detailed implementation processes of the blockchain-based data acquisition device and the blockchain-based data acquisition method are detailed in the method embodiments and are not described herein.
The computer device provided by the above technical solution may be implemented as an electronic device or a server, for example, fig. 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic device 600 may be: smart phones, tablet computers, smart cameras, audio monitoring devices, scanning devices, payment hardware terminals, and the like.
In general, the electronic device 600 includes: one or more processors 601 and one or more memories 602.
Processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 601 may be implemented in at least one hardware form of DSP (Digital Signal Processing ), FPGA (Field-Programmable Gate Array, field programmable gate array), PLA (Programmable Logic Array ). The processor 601 may also include a main processor, which is a processor for processing data in an awake state, also called a CPU (Central Processing Unit ), and a coprocessor; a coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 601 may integrate a GPU (Graphics Processing Unit, image processor) for rendering and drawing of content required to be displayed by the display screen. In some embodiments, the processor 601 may also include an AI (Artificial Intelligence ) processor for processing computing operations related to machine learning.
The memory 602 may include one or more computer-readable storage media, which may be non-transitory. The memory 602 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in memory 602 is used to store at least one instruction for execution by processor 601 to implement the blockchain-based data acquisition method provided by the method embodiments of the present application.
In some embodiments, the electronic device 600 may further optionally include: a peripheral interface 603, and at least one peripheral. The processor 601, memory 602, and peripheral interface 603 may be connected by a bus or signal line. The individual peripheral devices may be connected to the peripheral device interface 603 via buses, signal lines or a circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 604, camera assembly 605, audio circuitry 606, and power supply 608.
Peripheral interface 603 may be used to connect at least one Input/Output (I/O) related peripheral to processor 601 and memory 602. In some embodiments, the processor 601, memory 602, and peripheral interface 603 are integrated on the same chip or circuit board; in some other embodiments, either or both of the processor 601, memory 602, and peripheral interface 603 may be implemented on separate chips or circuit boards, which is not limited in this embodiment.
The Radio Frequency circuit 604 is configured to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 604 communicates with a communication network and other communication devices via electromagnetic signals. The radio frequency circuit 604 converts an electrical signal into an electromagnetic signal for transmission, or converts a received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 604 includes: antenna systems, RF transceivers, one or more amplifiers, tuners, oscillators, digital signal processors, codec chipsets, subscriber identity module cards, and so forth. The radio frequency circuitry 604 may communicate with other electronic devices via at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: metropolitan area networks, various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity ) networks. In some embodiments, the radio frequency circuit 604 may also include NFC (Near Field Communication ) related circuits, which the present application is not limited to.
The camera assembly 605 is used to capture images or video. Optionally, the camera assembly 605 includes a front camera and a rear camera. In general, a front camera is disposed on a front panel of an electronic device, and a rear camera is disposed on a rear surface of the electronic device. In some embodiments, the at least two rear cameras are any one of a main camera, a depth camera, a wide-angle camera and a tele camera, so as to realize that the main camera and the depth camera are fused to realize a background blurring function, and the main camera and the wide-angle camera are fused to realize a panoramic shooting and Virtual Reality (VR) shooting function or other fusion shooting functions. In some embodiments, camera assembly 605 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The dual-color temperature flash lamp refers to a combination of a warm light flash lamp and a cold light flash lamp, and can be used for light compensation under different color temperatures.
The audio circuit 606 may include a microphone and a speaker. The microphone is used for collecting sound waves of users and environments, converting the sound waves into electric signals, and inputting the electric signals to the processor 601 for processing, or inputting the electric signals to the radio frequency circuit 604 for voice communication. For purposes of stereo acquisition or noise reduction, the microphone may be multiple and separately disposed at different locations of the electronic device 600. The microphone may also be an array microphone or an omni-directional pickup microphone. The speaker is used to convert electrical signals from the processor 601 or the radio frequency circuit 604 into sound waves. The speaker may be a conventional thin film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, not only the electric signal can be converted into a sound wave audible to humans, but also the electric signal can be converted into a sound wave inaudible to humans for ranging and other purposes. In some embodiments, the audio circuit 606 may also include a headphone jack.
The power supply 608 is used to power the various components in the electronic device 600. The power source 608 may be alternating current, direct current, disposable or rechargeable. When the power supply 608 includes a rechargeable battery, the rechargeable battery may support wired or wireless charging. The rechargeable battery may also be used to support fast charge technology.
In some embodiments, the electronic device 600 further includes one or more sensors 609. The one or more sensors 610 include, but are not limited to: acceleration sensor, gyro sensor, pressure sensor, optical sensor, and proximity sensor.
Those skilled in the art will appreciate that the structure shown in fig. 6 is not limiting of the electronic device 600 and may include more or fewer components than shown, or may combine certain components, or may employ a different arrangement of components.
Fig. 7 is a schematic structural diagram of a server according to an embodiment of the present application, where the server 700 may have a relatively large difference due to different configurations or performances, and may include one or more processors (central processing units, CPU) 701 and one or more memories 702, where at least one program code is stored in the one or more memories 702, and the at least one program code is loaded and executed by the one or more processors 701 to implement the methods provided in the foregoing method embodiments. Of course, the server 700 may also have a wired or wireless network interface, a keyboard, an input/output interface, and other components for implementing the functions of the device, which are not described herein.
In an exemplary embodiment, a computer readable storage medium, such as a memory, including instructions executable by a processor to perform the blockchain-based data acquisition method of the above embodiments is also provided. For example, the computer readable storage medium may be Read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), compact disc Read-Only Memory (CD-ROM), magnetic tape, floppy disk, optical data storage device, and the like.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, where the program may be stored in a computer readable storage medium, and the above storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the application.
Claims (20)
1. A blockchain-based data acquisition method, for use with any node device in a blockchain system, the method comprising:
When any block is stored in a blockchain of the blockchain system, if the block contains an information acquisition request for searching a missing object, extracting a first identity identification and description information of the missing object carried by the information acquisition request, wherein the packaging process of the block comprises the following steps: when any transaction data is received, if the transaction data is the information acquisition request, if the number of the transaction data to be packaged in the current transaction pool is less than the target packaging number, determining the difference value between the target packaging number and the number of the transaction data to be packaged, generating preset transaction data equivalent to the difference value, and putting the preset transaction data into the transaction pool, so that the packaging of the transaction data is triggered;
detecting the monitoring data acquired by the node equipment according to the description information of the missing object;
and when detecting that the monitoring data contains target monitoring data matched with the description information, storing the first identity identification and the target monitoring data on the blockchain correspondingly.
2. The method according to claim 1, wherein detecting the monitoring data acquired by the node device according to the description information of the missing object comprises at least one of:
Detecting the monitoring data acquired in the stored target time period on the node equipment according to the description information of the missing object;
and detecting the monitoring data acquired in real time on the node equipment according to the description information of the missing object.
3. The method according to claim 1, wherein the method further comprises:
receiving an identification information storage request, wherein the identification information storage request carries a second identity mark of an object to be linked and corresponding first object information, and the first object information is used for representing biological identification information of the object;
and correspondingly storing the first object information and the second identity mark on the blockchain.
4. A method according to claim 3, characterized in that the method further comprises:
receiving an object information storage request, wherein the object information storage request carries the second identity identifier and corresponding second object information, and the second object information is used for representing behavior information of the object;
and integrating the object information belonging to the same information category in the first object information and the second object information according to the information category, and storing the integrated object information to the blockchain.
5. The method of claim 4, wherein the information categories include at least one of a photo category, a biometric information category, an account category.
6. The method of claim 4, wherein detecting the monitoring data acquired by the node device based on the description of the missing object comprises:
and when the descriptive information of the missing object comprises a photo, detecting at least one of image monitoring data and video monitoring data acquired by the node equipment, and if any one of the image monitoring data and the video monitoring data comprises the missing object indicated by the photo, determining that the monitoring data comprises target monitoring data matched with the descriptive information.
7. The method according to claim 6, wherein after detecting the monitoring data acquired by the node device according to the description information of the missing object, the method further comprises:
and intercepting part of data of the appearance of the missing object indicated by the photo from the monitoring data, and taking the part of data as the target monitoring data.
8. The method according to claim 6, wherein after detecting the monitoring data acquired by the node device according to the description information of the missing object, the method further comprises:
and when the monitoring data comprise target monitoring data matched with the description information, sending a monitoring result notice to a target user, wherein the monitoring result notice is used for informing that the missing object is monitored in a monitoring area of the node equipment.
9. The method according to claim 1, wherein the method further comprises:
if a target block is stored on the blockchain, extracting target monitoring data corresponding to the first identity identifier in the target block;
and sending a monitoring result notice to a target user according to the extracted at least one piece of target monitoring data, wherein the monitoring result notice is used for informing that the missing object is monitored in a monitoring area of source node equipment of the at least one piece of target monitoring data.
10. A blockchain-based data acquisition apparatus for use with any node device in a blockchain system, the apparatus comprising:
The extraction module is used for extracting a first identity identification and description information of the missing object carried by the information acquisition request when any block is stored on a blockchain of the blockchain system if the block contains the information acquisition request for searching the missing object, and the packaging process of the block comprises the following steps: when any transaction data is received, if the transaction data is the information acquisition request, if the number of the transaction data to be packaged in the current transaction pool is less than the target packaging number, determining the difference value between the target packaging number and the number of the transaction data to be packaged, generating preset transaction data equivalent to the difference value, and putting the preset transaction data into the transaction pool, so that the packaging of the transaction data is triggered;
the detection module is used for detecting the monitoring data acquired by the node equipment according to the description information of the missing object;
and the storage module is used for storing the first identity identification and the target monitoring data corresponding to the target monitoring data onto the blockchain when the monitoring data contain the target monitoring data matched with the description information.
11. The apparatus of claim 10, wherein the detection module is configured to perform at least one of:
Detecting the monitoring data acquired in the stored target time period on the node equipment according to the description information of the missing object;
and detecting the monitoring data acquired in real time on the node equipment according to the description information of the missing object.
12. The apparatus of claim 10, wherein the apparatus further comprises:
the receiving module is used for receiving an identification information storage request, wherein the identification information storage request carries a second identity mark of an object to be chained and corresponding first object information, and the first object information is used for representing biological identification information of the object;
the storage module is further used for correspondingly storing the first object information and the second identity to the blockchain.
13. The apparatus of claim 12, wherein the receiving module is further configured to receive an object information storage request, the object information storage request carrying the second identity and corresponding second object information, the second object information being used to represent behavior information of the object;
the storage module is further configured to integrate object information belonging to the same information category in the first object information and the second object information according to the information category, and store the integrated object information onto the blockchain.
14. The apparatus of claim 13, wherein the information categories include at least one of photo categories, biometric information categories, account categories.
15. The apparatus according to claim 13, wherein the detection module is configured to detect, when a photo is included in the description information of the missing object, at least one of image monitoring data and video monitoring data acquired by the node device, and determine that, if the missing object indicated by the photo is included in any one of the image monitoring data and the video monitoring data, it is detected that target monitoring data matching the description information is included in the monitoring data.
16. The apparatus of claim 15, further comprising an intercepting module configured to intercept, from the monitoring data, a portion of data of the appearance of the missing object indicated by the photograph, the portion of data being the target monitoring data.
17. The apparatus according to claim 15, further comprising a first notification module configured to send a monitoring result notification to a target user when it is detected that the monitoring data includes target monitoring data matching the description information, the monitoring result notification being configured to notify that the missing object is monitored in a monitoring area of the node device.
18. The apparatus of claim 10, further comprising a second notification module for extracting target monitoring data corresponding to the first identity in a target block if the target block is stored on the blockchain;
and sending a monitoring result notice to a target user according to the extracted at least one piece of target monitoring data, wherein the monitoring result notice is used for informing that the missing object is monitored in a monitoring area of source node equipment of the at least one piece of target monitoring data.
19. A computer device comprising one or more processors and one or more memories having stored therein at least one program code loaded and executed by the one or more processors to implement the operations performed by the blockchain-based data retrieval method of any of claims 1-9.
20. A computer readable storage medium having stored therein at least one program code that is loaded and executed by a processor to implement the operations performed by the blockchain-based data acquisition method of any of claims 1 to 9.
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| CN109660601A (en) * | 2018-11-26 | 2019-04-19 | 北京瑞卓喜投科技发展有限公司 | A kind of block chain common recognition method and block chain are known together device |
| CN110138861A (en) * | 2019-05-15 | 2019-08-16 | 北京中星微人工智能芯片技术有限公司 | A kind of security protection Intelligentized method and device |
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