CN108009257B - Wireless radio frequency data screening device and method based on stream computing - Google Patents
Wireless radio frequency data screening device and method based on stream computing Download PDFInfo
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- CN108009257B CN108009257B CN201711298865.0A CN201711298865A CN108009257B CN 108009257 B CN108009257 B CN 108009257B CN 201711298865 A CN201711298865 A CN 201711298865A CN 108009257 B CN108009257 B CN 108009257B
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2455—Query execution
- G06F16/24552—Database cache management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
- G06F16/215—Improving data quality; Data cleansing, e.g. de-duplication, removing invalid entries or correcting typographical errors
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
- G06F16/2291—User-Defined Types; Storage management thereof
Abstract
The invention discloses a wireless radio frequency data screening device and a method based on stream computing, which comprises a message queue kafka unit, a data source spout unit, a logic processing bolt unit and a cache management redis unit; a message queue kafka unit receives and stores wireless radio frequency data; the data source spout unit monitors and pulls the currently written data in the message queue kafka unit and analyzes the data; the logic processing bolt unit receives the analyzed data, inquires data matched with the received data in the cache management redis unit, performs matching screening in a specific positive and negative time period according to preset processing logic, and stores the data after matching screening in the cache management redis unit; the cache management redis unit receives the query information of the logic processing bolt unit and returns a result, and the result is used for storing data which cannot be matched at the current time point; the invention improves the efficiency of data screening under the concurrency of wireless radio frequency mass data, shortens the data waiting time in the traditional processing mode and improves the timeliness of data processing.
Description
Technical Field
The invention belongs to the technical field of large data flow type calculation, and particularly relates to a wireless radio frequency data screening device and method based on flow type calculation.
Background
The Internet of Things is another information industry revolution after computers, Internet and mobile communication, and the Internet of Things constructs 'Internet of Things' covering everything in the world by using technologies such as radio frequency automatic identification, wireless data communication and the like on the basis of the computer Internet, and the core technology for realizing the Internet of Things is the radio frequency technology. In recent years, with the rapid development of the internet of things technology, a great deal of applications of radio frequency technologies and devices, such as urban-level automobile gate traffic tracking, article logistics tracking and the like, follow-up daily radio frequency data reach the TB level, and the increase of the radio frequency data makes real-time processing become the first challenge to face in the present need.
At present, most processing modes are data clusters adopted, wherein data processing mainly takes MapReduce as a main mode, and data are processed by calling a Map function and a Reduce function. However, MapReduce has poor real-time performance and timeliness when processing data, so that a method capable of processing and matching and screening mass data is urgently needed.
Disclosure of Invention
Aiming at the defects or improvement requirements of the prior art, the invention provides a wireless radio frequency data screening device and method based on stream computing, which can be used for carrying out real-time monitoring, pulling and transmitting on the received wireless radio frequency data and carrying out matching screening on the wireless radio frequency data stream within a specific positive and negative time period, thereby improving the efficiency of data screening under the condition of concurrent mass wireless radio frequency data, shortening the data waiting time in the traditional processing mode and improving the timeliness of data processing.
In order to achieve the above object, according to an aspect of the present invention, there is provided a streaming computation-based wireless radio frequency data screening apparatus, including a message queue kafka unit, a data source spout unit, a logic processing bolt unit, and a cache management redis unit;
the message queue kafka unit is used for receiving and storing wireless radio frequency data;
the data source spout unit is used for monitoring and pulling the currently written data in the message queue kafka unit, analyzing the currently written data, and transmitting the analyzed data to the logic processing bolt unit;
the logic processing bolt unit is used for receiving the analyzed data, inquiring and acquiring historical data which can be matched with the currently received data in the cache management redis unit, performing matching screening within a specific positive and negative time period on the currently received data and the historical data according to preset processing logic, and persisting the successfully matched current data and historical data; writing the current data which is not successfully matched into a cache management redis unit; the cache management unit is used for monitoring a data failure event in the cache management redis unit and eliminating overtime failure data;
and the cache management redis unit is used for receiving the query information of the logic processing bolt unit and returning a result, and is used for caching the data which cannot be matched at the current time point.
Preferably, in the above wireless rf data screening apparatus based on streaming computation, a customized association screening logic is provided between the rf tag code of the matchable historical data and the rf tag code of the currently received data;
when a sign-in record exists in the radio frequency tag code of the historical data in a specific negative time period in a cache management Redis unit, a logic processing bolt unit rejects the historical data from the cache management Redis unit and makes the historical data and the currently received data persistent;
when the radio frequency tag code of the historical data is not recorded in a specific negative time period in the cache management redis unit, the logic processing bolt unit stores the currently received data into the cache management redis unit and sets the cache expiration time of the currently received data in the specific positive time period.
Preferably, in the above apparatus for screening radio frequency data based on streaming computing, the message queue kafka unit is further configured to create different message topics according to predefined data types and specify feature tags of the message topics, where the message topics are distinguished by the feature tags, and the different message topics are used to store different types of radio frequency data.
Preferably, in the above streaming computation-based radio frequency data screening apparatus, the logic processing bolt unit includes a plurality of logic processing sub-units, and different logic processing sub-units have different processing logics, and are configured to process the same data for multiple times; and the logic processing subunits transmit data by adopting a transmitting mode.
According to another aspect of the present invention, there is provided a streaming computation-based radio frequency data screening method, including the following steps:
s1: monitoring the inflow of wireless radio frequency data in the message queue kafka unit, when new data is written, pulling the currently written data, analyzing the currently written data according to preset analysis logic, and transmitting the analyzed data to a logic processing bolt unit;
s2: the logic processing bolt unit receives the analyzed data and inquires whether historical data matched with the analyzed data exists in a specific negative time period in the cache management redis unit, if yes, the step S3 is executed; if not, go to step S4;
s3: removing the matching historical data retrieved from the cache management redis unit, and persisting the currently received data with the removed data in the cache management redis unit and indicating that the data are matched;
s4: storing the currently received data into a cache management redis unit, and setting the expiration time of the cache management redis unit according to a specific positive time period;
s5: and monitoring a data failure event in the cache management redis unit, and when data fails, removing the data and persisting the data, and indicating that the data are not matched.
Preferably, the above method for screening radio frequency data further includes, before step S1, the following steps: and creating message themes with different feature tags in advance according to the defined radio frequency data types, wherein the different message themes are used for storing different types of radio frequency data.
Preferably, the method for screening radio frequency data is characterized in that the method for matching and screening in step S2 includes the following steps:
s21: according to the radio frequency tag codes of the received data, inquiring and acquiring whether the radio frequency tag codes matched with the cache management redis units exist in the cache management redis units, wherein the radio frequency tag codes have self-defined correlation screening logic; if yes, go to step S22; if not, go to step S4;
s22: according to the obtained radio frequency tag code, retrieving whether a sign-in record of the radio frequency tag code exists in a specific negative time period in a cache management redis unit; if yes, go to step S3; if not, the process proceeds to step S4.
In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:
the invention provides a wireless radio frequency data screening device and method based on stream computing, which realizes the persistence of wireless radio frequency data stream by continuously writing in the wireless radio frequency data in a message queue; the method comprises the steps that wireless radio frequency data are continuously monitored, pulled and analyzed by a data source spout unit and are transmitted to a logic processing bolt unit, matching screening in a specific positive and negative time period is carried out on the wireless radio frequency data flow through the logic processing bolt unit, and when data matched with received data exist in a cache management redis unit, the matching data are deleted and the currently received data and the rejected matching data in the cache management redis unit are made persistent; when no matched data exists, the currently received data is stored in the cache management redis unit, so that the efficiency problem of data screening under the condition of concurrent wireless radio frequency mass data is improved, the data waiting time in the traditional processing mode is shortened, and the timeliness of data processing is improved; setting the failure time of the currently received data according to the specific time period; and monitoring a data failure event in real time, and eliminating and persisting the data failure event when the data fails so as to avoid invalid data occupying storage space.
Drawings
Fig. 1 is a block diagram of a wireless radio frequency data screening apparatus based on streaming computing according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for screening wireless radio frequency data based on streaming computing according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for matching and screening data by a logic processing bolt unit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 is a block diagram of a wireless radio frequency data screening apparatus based on streaming computing according to an embodiment of the present invention; as shown in fig. 1, the wireless radio frequency data screening apparatus based on streaming computing provided by the present invention includes a message queue kafka unit, a data source spout unit, a logic processing bolt unit, and a cache management redis unit;
the message queue kafka unit is used for receiving and storing massive wireless radio frequency data; the system comprises a database, a message theme server, a message data storage unit, a message data processing unit, a message processing unit and a message processing unit, wherein the database is used for storing the message theme server, the message theme server is used for creating different message themes according to predefined wireless radio frequency data types and appointing feature tags of the message themes, the message themes are distinguished through the feature tags, and the different message themes; and storing the wireless radio frequency data stream into a corresponding message subject in a message queue kafka unit in a log file mode according to the data type.
The data source spout unit is used for subscribing the message theme of the message queue kafka unit, monitoring, pulling and analyzing the currently written message in the message theme, converting the data format of the currently written message into a format which can be processed by the logic processing bolt unit, and transmitting the analyzed message data to the logic processing bolt unit; the data source spout unit is used as a consumer of the wireless radio frequency data stored in the message queue kafka unit and subscribes to a message theme corresponding to the feature tag; the data source spout unit monitors the inflow of the wireless radio frequency data in the message queue kafka unit in a blocking mode; when data is written into the message queue kafka unit, the data source spout unit pulls the radio frequency data according to the feature tag of the message theme, and analyzes and cleans the data according to the preset analysis logic, so as to ensure that the processed data format is the same as the data format agreed by the logic processing bolt unit; and transmitting the processed data to a logic processing bolt unit for logic processing of matching screening.
The logic processing bolt unit is used for receiving data transmitted by the data source spout unit, inquiring and acquiring historical data which can be matched with currently received data in the cache management redis unit, performing matching screening within a specific positive and negative time period on the currently received data and the historical data according to preset processing logic, and persisting the successfully matched current data and historical data; writing the current data which is not successfully matched into a cache management redis unit; the cache management unit is used for monitoring a data failure event in the cache management redis unit and eliminating overtime failure data;
due to the disorder of the wireless radio frequency data, when data in a positive time period and a negative time period need to be matched and screened, logically, the current data needs to be matched and screened with historical data and data generated in a future time period; a negative period, i.e. a specific historical period, and a positive period, i.e. a specific future period; the lengths of the historical time period and the future time period can be set according to the requirements of users and actual application scenes; the radio frequency label codes of the radio frequency data which can be matched with each other have associated screening logic which is customized by a user in advance.
Specifically, the logic processing bolt unit receives the wireless radio frequency data transmitted by the data source spout unit, the radio frequency tag code and the radio frequency identifier device code, and queries whether the radio frequency tag code matched with the received data exists in the cache management redis unit; after acquiring a radio frequency tag code which can be matched, searching whether a sign-in record exists in a cache management redis unit in a specific negative time period, if so, indicating that historical data which can be matched with currently received data exists in the cache management redis unit, removing the matched data searched in the cache management redis unit, and making the currently received data and the removed matched data in the cache management redis unit persistent, namely, storing the matched data into a memory such as a hard disk for permanent storage, and simultaneously indicating that the data are matched; if not, storing the currently received data into a cache management redis unit, and setting the failure time of the currently received data in a specific time period; and starting a monitoring thread, and when the data in the cache management redis unit is overtime and invalid, removing and persisting the invalid data, namely, storing the invalid data into a memory such as a hard disk for permanent storage, and simultaneously marking that the data has no matched data.
The logic processing bolt unit comprises a plurality of logic processing subunits, different logic processing subunits have different processing logics and are used for processing the same data for multiple times, and each logic processing subunit can exist as a minimum processing unit; the data transmission between the logic processing subunits is transmitted from the previous logic processing subunit to the next logic processing subunit in a transmitting mode.
And the cache management redis unit is used for receiving the query information of the logic processing bolt unit and returning a result, and is used for storing the matched and screened data.
Fig. 2 is a flowchart of a method for screening wireless radio frequency data based on streaming computing according to an embodiment of the present invention; as shown in fig. 2, the method for screening wireless radio frequency data based on streaming computing provided by the present invention includes the following steps:
s1: creating message themes and specifying feature tags of the message themes in advance according to defined wireless radio frequency data types, wherein the message themes are distinguished through the feature tags, and different message themes are used for storing different types of wireless radio frequency data;
s2: writing the radio frequency data into a corresponding message theme according to the data type;
s3: the data source spout unit subscribes the message subject in the message queue kafka unit and monitors the inflow of the wireless radio frequency data in the message queue kafka unit; when data is written into the message queue kafka unit, the data source spout unit pulls the currently written data and analyzes and cleans the currently written data according to preset analysis logic, and the processed data format is ensured to be the same as the data format agreed by the logic processing bolt unit; transmitting the processed data to a logic processing bolt unit;
s4: the logic processing bolt unit receives current data transmitted by the data source spout unit, inquires whether historical data matched with the current data exists in a specific negative time period in the cache management redis unit, if yes, eliminates the matched data in the cache management redis unit, makes the matched data persistent with the currently received data, and simultaneously marks that the data are matched; if not, entering the next step;
s5: storing the currently received data into a cache management redis unit, and setting the expiration time of the cache management redis unit according to a specific positive time period; and starting a monitoring thread, monitoring a wireless radio frequency data failure event, and when data fails, rejecting and persisting the data, and simultaneously marking that the data has no matched data.
Fig. 3 is a flowchart of a method for performing matching screening on data by a logic processing bolt unit according to an embodiment of the present invention, which specifically includes the following steps:
s41: the logic processing bolt unit inquires and acquires whether a radio frequency tag code matched with the cache management redis unit exists or not according to the received radio frequency tag code of the wireless radio frequency data; if yes, go to step S42; if not, go to step S5;
s42: according to the obtained radio frequency tag code, retrieving whether the sign-in record of the radio frequency tag exists in a specific negative time period in a cache management redis unit; if yes, go to step S43, otherwise, go to step S5;
s43: removing the data corresponding to the matching tag retrieved from the cache management redis unit, and persisting the currently received data with the removed matching data in the cache management redis unit, and simultaneously indicating that the data are matched;
according to the device and the method for screening the wireless radio frequency data based on the streaming computing, the received wireless radio frequency data is monitored, pulled and transmitted in real time, and the wireless radio frequency data stream is subjected to matching screening in a specific positive and negative time period, so that the efficiency of screening the wireless radio frequency mass data in a concurrent mode is improved, the data waiting time in a traditional processing mode is shortened, and the timeliness of data processing is improved.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (7)
1. A wireless radio frequency data screening device based on stream computing is characterized by comprising a message queue kafka unit, a data source spout unit, a logic processing bolt unit and a cache management redis unit;
the message queue kafka unit is used for receiving and storing wireless radio frequency data;
the data source spout unit is used for monitoring and pulling the data written currently in the message queue kafka unit and analyzing the data;
the logic processing bolt unit is used for receiving the analyzed data, inquiring and acquiring historical data associated with the currently received data in the cache management Redis unit, performing matching screening on the currently received data and the historical data within a specific positive and negative time period, and if a sign-in record exists in a specific negative time period of a radio frequency tag code of the historical data in the cache management Redis unit, rejecting the historical data from the cache management Redis unit and making the historical data and the currently received data persistent;
if the radio frequency tag code of the historical data has no sign-in record in the specific negative time period, storing the currently received data into a cache management redis unit and setting the cache expiration time of the currently received data in the specific positive time period; the cache management unit is used for monitoring a data failure event in the cache management redis unit and eliminating overtime failure data;
and the cache management redis unit is used for receiving the query information of the logic processing bolt unit and returning a result, and is used for caching the data which cannot be matched at the current time point.
2. The streaming-based wireless radio frequency data screening apparatus as claimed in claim 1, wherein there is a customized association screening logic between the radio frequency tag code of the historical data and the radio frequency tag code of the currently received data; and the logic processing bolt unit queries historical data associated with the currently received data from the cache management redis unit according to the association screening logic.
3. The streaming calculation-based radio frequency data screening device as claimed in claim 1 or 2, wherein the message queue kafka unit is further configured to create different message topics according to predefined data types and specify feature tags of the message topics, the message topics are distinguished by the feature tags, and the different message topics are used to store different types of radio frequency data.
4. The streaming computing-based wireless radio frequency data screening apparatus according to claim 3, wherein the logic processing bolt unit includes a plurality of logic processing sub-units, different logic processing sub-units having different processing logics for processing the same data a plurality of times; and the logic processing subunits transmit data by adopting a transmitting mode.
5. A screening method based on the wireless radio frequency data screening device of any one of claims 1 to 4, characterized by comprising the following steps:
s1: monitoring the inflow of wireless radio frequency data in the message queue kafka unit, and when new data is written, pulling the currently written data and analyzing the data according to a preset analysis logic;
s2: the logic processing bolt unit receives the analyzed data and inquires historical data related to the currently received data in the cache management redis unit, and judges whether a sign-in record exists in a radio frequency tag code of the historical data in a specific negative time period in the cache management redis unit, if yes, the step S3 is executed; if not, go to step S4;
s3: removing the matching historical data retrieved from the cache management redis unit, and persisting the currently received data and the removed data in the cache management redis unit;
s4: storing the currently received data into a cache management redis unit, and setting the expiration time of the cache management redis unit according to a specific positive time period;
s5: and monitoring a data failure event in the cache management redis unit, and removing and persisting the data failure event when the data failure occurs.
6. The screening method of claim 5, further comprising, before step S1, the steps of: and creating message themes with different feature tags in advance according to the defined radio frequency data types, wherein the different message themes are used for storing different types of radio frequency data.
7. The screening method of claim 5 or 6, wherein the method of match screening in step S2 comprises the steps of:
s21: according to the radio frequency tag codes of the received data, inquiring and acquiring whether the radio frequency tag codes matched with the cache management redis units exist in the cache management redis units, wherein the radio frequency tag codes have self-defined correlation screening logic; if yes, go to step S22; if not, go to step S4;
s22: according to the obtained radio frequency tag code, retrieving whether a sign-in record of the radio frequency tag code exists in a specific negative time period in a cache management redis unit; if yes, go to step S3; if not, the process proceeds to step S4.
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