CN109144429A - A kind of water utilities device data acquisition method and device based on buffer pool - Google Patents
A kind of water utilities device data acquisition method and device based on buffer pool Download PDFInfo
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- CN109144429A CN109144429A CN201811082519.3A CN201811082519A CN109144429A CN 109144429 A CN109144429 A CN 109144429A CN 201811082519 A CN201811082519 A CN 201811082519A CN 109144429 A CN109144429 A CN 109144429A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/061—Improving I/O performance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/062—Securing storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
- G06F3/0656—Data buffering arrangements
Abstract
The present invention provides a kind of water utilities device data acquisition method based on buffer pool, including water utilities intelligent terminal to data acquisition service interface sending device data request information, and device data request message is put into distributed buffering pond by data acquisition service interface；Distributed buffering pond is lined up device data request message, and returns to response message by data acquisition service interface and give water utilities intelligent terminal；Device data request message in the data monitoring service acquisition queue of simultaneous buffering pond, and device data is parsed from device data request message；The device data parsed is sent to data persistence storage service and carries out persistence, and the storage state of device data is returned and is recorded in the service of buffer pool data monitoring.The invention has the advantages that can be effectively reduced the response time, improving response efficiency and concurrent capability, the concurrent data requests of the extensive water utilities intelligent terminal of City-level can be supported well.
Description
Technical field
The present invention relates to water utilities data processing field, in particular to a kind of water utilities device data acquisition based on buffer pool
Method and device.
Background technique
With wisdom water utilities development and technology of Internet of things it is increasingly mature, the intelligent telemetering terminal of water enterprise is set
It is standby also more and more.Currently, when acquiring the data of water utilities intelligent terminal, when background service interface to water utilities intelligence
Can terminal device data after, require first to store data into just returned after database response message to water utilities intelligence eventually
End equipment；Since the entire response time is longer, under causing response efficiency and concurrent capability all relatively low, it has been difficult to support city
The concurrent data requests of the extensive water utilities intelligent terminal of city-level.
Summary of the invention
One of the technical problem to be solved in the present invention is to provide a kind of water utilities device data acquisition based on buffer pool
It is existing when returning to response message to water utilities intelligent terminal to be able to solve the prior art by the acquisition method for method
Response time is long, response efficiency and concurrent capability are low, and be difficult to support the extensive water utilities intelligent terminal of City-level and
The problem of sending out request of data.
The present invention is realized in one of technical problem: a kind of water utilities device data acquisition method based on buffer pool,
Described method includes following steps:
Step S1, water utilities intelligent terminal is adopted to data acquisition service interface sending device data request information, data
Collect service interface and device data request message is put into distributed buffering pond；
Step S2, distributed buffering pond is lined up device data request message, and passes through data acquisition service interface
It returns to response message and gives water utilities intelligent terminal；Meanwhile the device data in buffer pool data monitoring service acquisition queue is asked
Message is sought, and parses device data from device data request message；
Step S3, the device data parsed is sent to data persistence storage service and carries out persistence, and will set
The storage state of standby data is returned and is recorded in the service of buffer pool data monitoring.
Further, in the step S1, device data request message is put into point by the data acquisition service interface
Cloth buffer pool specifically:
Data acquisition service interface is right after the device data request message for receiving the transmission of water utilities intelligent terminal
The legitimacy of water utilities intelligent terminal is verified, and if be proved to be successful, and calls the interface in distributed buffering pond, will
Device data request message is put into distributed buffering pond；If authentication failed, device data request message is not put into
To distributed buffering pond, and returns to authentication failed message and give water utilities intelligent terminal.
Further, the step S2 is specifically included are as follows:
Device data request message is put into buffer pool by step 21, distributed buffering pond according to received time sequencing
It is lined up, and the status information for being put into buffer pool queuing is returned into data acquisition service interface；
Step 22, data acquisition service interface analysis state information obtain parsing result, and parsing result are returned to water supply
Business intelligent terminal；
Whether step 23, buffer pool data monitoring service monitoring distributed buffering have device data request message to arrive in pond
It reaches, and is reached if having monitored device data request message, trigger data acquisition request, and enter step 24；If prison
It controls no device data request message to reach, then the service of buffer pool data monitoring continues to monitor；
Step 24, buffer pool data monitoring service call distributed buffering pond interface, and according to message queue sequence from
Device data request message is obtained in distributed buffering pond；
Step 25, the service of buffer pool data monitoring carry out protocol analysis to the device data request message of acquisition, and obtain
Device data out.
Further, the step S3 is specifically included:
Step S31, the device data that buffer pool data monitoring service parses is sent to data persistence storage clothes
Business, received device data is saved in hardware disk by data persistence storage service, and by the storage state of device data
Return to the service of buffer pool data monitoring；
Step S32, the storage state of buffer pool data monitoring service log device data, and according to the storage shape of return
State judges whether to store successfully, and if stored successfully, terminates process；If storage failure, according to message SN weight
The new interface for calling distributed buffering pond obtains device data request message, and return step 25.
The second technical problem to be solved by the present invention is to provide a kind of water utilities device data acquisition based on buffer pool
It is existing when returning to response message to water utilities intelligent terminal to be able to solve the prior art by the acquisition device for device
Response time is long, response efficiency and concurrent capability are low, and be difficult to support the extensive water utilities intelligent terminal of City-level and
The problem of sending out request of data.
The present invention is realized in the twos' of technical problem: a kind of water utilities device data acquisition device based on buffer pool,
The acquisition device includes request message module, request message is lined up and parsing module and data memory module；
The request message module is used for water utilities intelligent terminal to data acquisition service interface sending device data
Device data request message is put into distributed buffering pond by request message, data acquisition service interface；
The request message is lined up and parsing module, arranges for distributed buffering pond device data request message
Team, and response message is returned to by data acquisition service interface and gives water utilities intelligent terminal；Meanwhile buffer pool data monitoring
Device data request message in service acquisition queue, and device data is parsed from device data request message；
The data memory module is carried out for the device data parsed to be sent to data persistence storage service
Persistence, and the storage state of device data is returned and is recorded in the service of buffer pool data monitoring.
Further, in the request message module, the data acquisition service interface is by device data request message
It is put into distributed buffering pond specifically:
Data acquisition service interface is right after the device data request message for receiving the transmission of water utilities intelligent terminal
The legitimacy of water utilities intelligent terminal is verified, and if be proved to be successful, and calls the interface in distributed buffering pond, will
Device data request message is put into distributed buffering pond；If authentication failed, device data request message is not put into
To distributed buffering pond, and returns to authentication failed message and give water utilities intelligent terminal.
Further, the request message, which is lined up, specifically includes request message queued units, status information with parsing module
Resolution unit, request message monitoring unit, request message acquiring unit and request message resolution unit；
The request message queued units ask device data according to received time sequencing for distributed buffering pond
It asks message to be put into buffer pool to be lined up, and the status information for being put into buffer pool queuing is returned into data acquisition service interface；
The status information resolution unit obtains parsing result for data acquisition service interface analysis state information, and
Parsing result is returned into water utilities intelligent terminal；
The request message monitoring unit, for whether having in buffer pool data monitoring service monitoring distributed buffering pond
Device data request message reaches, and if having monitored the arrival of device data request message, trigger data acquisition request,
And enter the request message acquiring unit；If monitoring no device data request message to reach, buffer pool data prison
Control service continues to monitor；
The request message acquiring unit, for the interface in buffer pool data monitoring service call distributed buffering pond, and
Device data request message is obtained from distributed buffering pond according to message queue sequence；
The request message resolution unit, for the service of buffer pool data monitoring to the device data request message of acquisition
Protocol analysis is carried out, and obtains out device data.
Further, the data memory module specifically includes persistent storage unit and storage state judging unit；
The persistent storage unit, the device data for parsing buffer pool data monitoring service are sent to number
According to persistent storage service, received device data is saved in hardware disk by data persistence storage service, and by equipment
The storage state of data returns to the service of buffer pool data monitoring；
The storage state judging unit, for the storage state of buffer pool data monitoring service log device data, and
Judge whether to store successfully according to the storage state of return, and if stored successfully, terminates process；If storage failure,
Device data request message is obtained according to the interface that message SN re-calls distributed buffering pond, and returns to the request
Message parsing unit.
The present invention has the advantage that 1, after device data request message is put into buffer pool, just directly return response
Message gives water utilities intelligent terminal, without therefore can be effectively reduced the response time by the interaction of database, mentioning
High response efficiency and concurrent capability can support the concurrent data requests of the extensive water utilities intelligent terminal of City-level well；
2, data persistence storage service provides the persistence mechanism of device data, simultaneous buffering pond data prison by hardware disk
Control services recordable device data storage state, and judges state data memory, according to message SN if storing failure
It re-calls distributed caching pond interface and obtains device data request message, can effectively avoid device data loss.
Detailed description of the invention
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of water utilities device data acquisition method architecture diagram based on buffer pool of the present invention.
Fig. 2 is a kind of execution flow chart of the water utilities device data acquisition method based on buffer pool of the present invention.
Specific embodiment
Please refer to shown in Fig. 1 to Fig. 2, a kind of water utilities device data acquisition method based on buffer pool of the present invention it is preferable
Embodiment, described method includes following steps:
Step S1, water utilities intelligent terminal is adopted to data acquisition service interface sending device data request information, data
Collect service interface and device data request message is put into distributed buffering pond；Wherein, the water utilities intelligent terminal can be
The equipment such as flowmeter, pressure gauge, water quality monitoring equipment, terminal family table, teletransmission RTU.
In the step S1, device data request message is put into distributed buffering by the data acquisition service interface
Pond specifically: data acquisition service interface is right after the device data request message for receiving the transmission of water utilities intelligent terminal
The legitimacy of water utilities intelligent terminal is verified (for example, whether verifying water utilities intelligent terminal has certification), and if
It is proved to be successful, then calls the interface in distributed buffering pond, device data request message is put into distributed buffering pond；Such as
Device data request message is not then put into distributed buffering pond by fruit authentication failed, and returns to authentication failed message to water utilities
Intelligent terminal.
Step S2, distributed buffering pond is lined up device data request message, and passes through data acquisition service interface
It returns to response message and gives water utilities intelligent terminal；Meanwhile the device data in buffer pool data monitoring service acquisition queue is asked
Message is sought, and parses device data from device data request message；
The step S2 is specifically included are as follows:
Device data request message is put into buffer pool by step 21, distributed buffering pond according to received time sequencing
Be lined up, with etc. it is to be processed, and by be put into buffer pool queuing status information return to data acquisition service interface；
Step 22, data acquisition service interface analysis state information obtain parsing result (for example, device data request disappears
Breath has become power amplifier and enters buffer pool), and parsing result is returned into water utilities intelligent terminal；The present invention is used device data
After request message is put into buffer pool, just directly water utilities intelligent terminal is given in return response message (i.e. parsing result), without
To pass through the interaction of database, i.e., previous server hard disc interaction is promoted to the interaction for arriving memory hierarchy, therefore, Neng Gouyou
Effect reduces the response time, improves response efficiency and concurrent capability, and the extensive water utilities intelligent terminal of City-level can be supported to set well
Standby concurrent data requests.
Whether step 23, buffer pool data monitoring service monitoring distributed buffering have device data request message to arrive in pond
It reaches, and is reached if having monitored device data request message, trigger data acquisition request, and enter step 24；If prison
It controls no device data request message to reach, then the service of buffer pool data monitoring continues to monitor；
Step 24, buffer pool data monitoring service call distributed buffering pond interface, and according to message queue sequence from
Device data request message is obtained in distributed buffering pond, that is, the device data request message for being introduced into message queue just first obtains
It takes, the rear device data request message into message queue is just rear to be obtained；
Step 25, the service of buffer pool data monitoring carry out protocol analysis to the device data request message of acquisition, and obtain
Device data out.
Step S3, the device data parsed is sent to data persistence storage service and carries out persistence, and will set
The storage state of standby data is returned and is recorded in the service of buffer pool data monitoring；
The step S3 is specifically included:
Step S31, the device data that buffer pool data monitoring service parses is sent to data persistence storage clothes
Received device data is saved in hardware disk by business, data persistence storage service, provides number of devices by hardware disk
According to persistence mechanism, can effectively avoid device data loss, and by the storage state of device data return buffer pool data
Monitoring service；
Step S32, the storage state of buffer pool data monitoring service log device data, and according to the storage shape of return
State judges whether to store successfully, and if stored successfully, terminates process；If storage failure, according to message SN weight
The new interface for calling distributed buffering pond obtains device data request message, and return step 25.
It please refers to shown in Fig. 1 to figure, a kind of preferable reality of the water utilities device data acquisition device based on buffer pool of the present invention
Example is applied, the acquisition device includes request message module, request message is lined up and parsing module and data memory module；
The request message module is used for water utilities intelligent terminal to data acquisition service interface sending device data
Device data request message is put into distributed buffering pond by request message, data acquisition service interface；Wherein, the water utilities intelligence
Energy terminal device can be the equipment such as flowmeter, pressure gauge, water quality monitoring equipment, terminal family table, teletransmission RTU.
In the request message module, device data request message is put into distribution by the data acquisition service interface
Formula buffer pool specifically: data acquisition service interface disappears in the device data request for receiving the transmission of water utilities intelligent terminal
After breath, the legitimacy of water utilities intelligent terminal is verified and (is recognized for example, whether verifying water utilities intelligent terminal has
Card), and if be proved to be successful, the interface in distributed buffering pond is called, device data request message is put into distributed slow
It rushes in pond；If authentication failed, device data request message distributed buffering pond is not put into, and return to authentication failed
Message gives water utilities intelligent terminal.
The request message is lined up and parsing module, arranges for distributed buffering pond device data request message
Team, and response message is returned to by data acquisition service interface and gives water utilities intelligent terminal；Meanwhile buffer pool data monitoring
Device data request message in service acquisition queue, and device data is parsed from device data request message；
The request message be lined up with parsing module specifically include request message queued units, status information resolution unit,
Request message monitoring unit, request message acquiring unit and request message resolution unit；
The request message queued units ask device data according to received time sequencing for distributed buffering pond
Ask message to be put into buffer pool to be lined up, with etc. it is to be processed, and will be put into buffer pool queuing status information return to data acquisition
Service interface；
The status information resolution unit obtains parsing result (example for data acquisition service interface analysis state information
Such as, device data request message has become power amplifier and enters buffer pool), and parsing result is returned into water utilities intelligent terminal；This hair
After device data request message is put into buffer pool by bright use, response message (i.e. parsing result) is just directly returned to water utilities intelligence
Previous server hard disc interaction is promoted without the interaction by database and arrives memory hierarchy by energy terminal device
Therefore interaction can be effectively reduced the response time, improve response efficiency and concurrent capability, can support the big rule of City-level well
The concurrent data requests of mould water utilities intelligent terminal.
The request message monitoring unit, for whether having in buffer pool data monitoring service monitoring distributed buffering pond
Device data request message reaches, and if having monitored the arrival of device data request message, trigger data acquisition request,
And enter the request message acquiring unit；If monitoring no device data request message to reach, buffer pool data prison
Control service continues to monitor；
The request message acquiring unit, for the interface in buffer pool data monitoring service call distributed buffering pond, and
Device data request message is obtained from distributed buffering pond according to message queue sequence, that is, is introduced into the equipment of message queue
Data request information just first obtains, and the rear device data request message into message queue is just rear to be obtained；
The request message resolution unit, for the service of buffer pool data monitoring to the device data request message of acquisition
Protocol analysis is carried out, and obtains out device data.
The data memory module is carried out for the device data parsed to be sent to data persistence storage service
Persistence, and the storage state of device data is returned and is recorded in the service of buffer pool data monitoring；
The data memory module specifically includes persistent storage unit and storage state judging unit；
The persistent storage unit, the device data for parsing buffer pool data monitoring service are sent to number
According to persistent storage service, received device data is saved in hardware disk by data persistence storage service, passes through hardware
Disk provides the persistence mechanism of device data, can effectively avoid device data loss, and by the storage state of device data
Return to the service of buffer pool data monitoring；
The storage state judging unit, for the storage state of buffer pool data monitoring service log device data, and
Judge whether to store successfully according to the storage state of return, and if stored successfully, terminates process；If storage failure,
Device data request message is obtained according to the interface that message SN re-calls distributed buffering pond, and returns to the request
Message parsing unit.
In conclusion the present invention has the advantage that 1, after device data request message is put into buffer pool, it is just straight
It connects return response message and gives water utilities intelligent terminal, without therefore can be effectively reduced by the interaction of database
Response time improves response efficiency and concurrent capability, can support well the extensive water utilities intelligent terminal of City-level and
Send out request of data；2, data persistence storage service provides the persistence mechanism of device data by hardware disk, delays simultaneously
Rushing pond data monitoring service can record device data storage state, and judge state data memory, the basis if storing failure
Message SN re-calls distributed caching pond interface and obtains device data request message, can effectively avoid device data and loses
It loses.
Although specific embodiments of the present invention have been described above, those familiar with the art should
Understanding, we are merely exemplary described specific embodiment, rather than for the restriction to the scope of the present invention, it is ripe
Knowing those skilled in the art according to modification and variation equivalent made by spirit of the invention, should all cover at this
In the scope of the claimed protection of invention.
Claims (8)
1. a kind of water utilities device data acquisition method based on buffer pool, it is characterised in that: described method includes following steps:
Step S1, water utilities intelligent terminal takes to data acquisition service interface sending device data request information, data acquisition
Device data request message is put into distributed buffering pond by business interface；
Step S2, distributed buffering pond is lined up device data request message, and is returned by data acquisition service interface
Response message gives water utilities intelligent terminal；Meanwhile the device data request in buffer pool data monitoring service acquisition queue disappears
Breath, and device data is parsed from device data request message；
Step S3, the device data parsed is sent to data persistence storage service and carries out persistence, and by number of devices
According to storage state return and be recorded buffer pool data monitoring service in.
2. a kind of water utilities device data acquisition method based on buffer pool according to claim 1, it is characterised in that: in institute
It states in step S1, device data request message is put into distributed buffering pond by the data acquisition service interface specifically:
Data acquisition service interface is after the device data request message for receiving the transmission of water utilities intelligent terminal, to water utilities intelligence
The legitimacy of energy terminal device is verified, and if be proved to be successful, calls the interface in distributed buffering pond, by device data
Request message is put into distributed buffering pond；If authentication failed, device data request message distribution is not put into
Buffer pool, and return to authentication failed message and give water utilities intelligent terminal.
3. a kind of water utilities device data acquisition method based on buffer pool according to claim 1, it is characterised in that: described
Step S2 is specifically included are as follows:
Device data request message is put into buffer pool according to received time sequencing and is lined up by step 21, distributed buffering pond,
And the status information for being put into buffer pool queuing is returned into data acquisition service interface；
Step 22, data acquisition service interface analysis state information obtain parsing result, and parsing result are returned to water utilities intelligence
It can terminal device；
Whether device data request message arrival is had in step 23, buffer pool data monitoring service monitoring distributed buffering pond, and
If having monitored the arrival of device data request message, trigger data acquisition request, and enter step 24；If monitored not
There is the arrival of device data request message, then the service of buffer pool data monitoring continues to monitor；
Step 24, buffer pool data monitoring service call distributed buffering pond interface, and according to message queue sequence from distribution
Device data request message is obtained in formula buffer pool；
Step 25, the service of buffer pool data monitoring carry out protocol analysis to the device data request message of acquisition, and obtain out and set
Standby data.
4. a kind of water utilities device data acquisition method based on buffer pool according to claim 3, it is characterised in that: described
Step S3 is specifically included:
Step S31, the device data that buffer pool data monitoring service parses is sent to data persistence storage service, data
Received device data is saved in hardware disk by persistent storage service, and the storage state of device data is returned and is buffered
Pond data monitoring service；
Step S32, the storage state of buffer pool data monitoring service log device data, and judged according to the storage state of return
Whether storage is successful, and if stored successfully, terminates process；If storage failure, re-calls according to message SN
The interface in distributed buffering pond obtains device data request message, and return step 25.
5. a kind of water utilities device data acquisition device based on buffer pool, it is characterised in that: the acquisition device includes that request disappears
Cease module, request message is lined up and parsing module and data memory module；
The request message module disappears for water utilities intelligent terminal to data acquisition service interface sending device request of data
Device data request message is put into distributed buffering pond by breath, data acquisition service interface；
The request message is lined up and parsing module, is lined up for distributed buffering pond to device data request message, and
Response message, which is returned, by data acquisition service interface gives water utilities intelligent terminal；Meanwhile buffer pool data monitoring service obtains
The device data request message in queue is taken, and parses device data from device data request message；
The data memory module is permanently protected for the device data parsed to be sent to data persistence storage service
It deposits, and the storage state of device data is returned and is recorded in the service of buffer pool data monitoring.
6. a kind of water utilities device data acquisition device based on buffer pool according to claim 5, it is characterised in that: in institute
It states in request message module, it is specific that device data request message is put into distributed buffering pond by the data acquisition service interface
Are as follows:
Data acquisition service interface is after the device data request message for receiving the transmission of water utilities intelligent terminal, to water utilities intelligence
The legitimacy of energy terminal device is verified, and if be proved to be successful, calls the interface in distributed buffering pond, by device data
Request message is put into distributed buffering pond；If authentication failed, device data request message distribution is not put into
Buffer pool, and return to authentication failed message and give water utilities intelligent terminal.
7. a kind of water utilities device data acquisition device based on buffer pool according to claim 5, it is characterised in that: described
Request message, which is lined up, specifically includes request message queued units, status information resolution unit, request message monitoring with parsing module
Unit, request message acquiring unit and request message resolution unit；
The request message queued units, for distributed buffering pond according to received time sequencing by device data request message
It is put into buffer pool and is lined up, and the status information for being put into buffer pool queuing is returned into data acquisition service interface；
The status information resolution unit obtains parsing result for data acquisition service interface analysis state information, and will solution
Analysis result returns to water utilities intelligent terminal；
The request message monitoring unit, for whether having number of devices in buffer pool data monitoring service monitoring distributed buffering pond
It reaches, and is reached if having monitored device data request message, trigger data acquisition request, and enter institute according to request message
State request message acquiring unit；Reached if monitoring no device data request message, the service of buffer pool data monitoring after
It is continuous to be monitored；
The request message acquiring unit, for the interface in buffer pool data monitoring service call distributed buffering pond, and according to
Message queue sequence obtains device data request message from distributed buffering pond；
The request message resolution unit is assisted for device data request message of the buffer pool data monitoring service to acquisition
View parsing, and obtain out device data.
8. a kind of water utilities device data acquisition device based on buffer pool according to claim 7, it is characterised in that: described
Data memory module specifically includes persistent storage unit and storage state judging unit；
The persistent storage unit, the device data for parsing buffer pool data monitoring service are sent to lasting data
Change storage service, received device data is saved in hardware disk by data persistence storage service, and by device data
Storage state returns to the service of buffer pool data monitoring；
The storage state judging unit, for the storage state of buffer pool data monitoring service log device data, and according to
The storage state of return judges whether to store successfully, and if stored successfully, terminates process；If storage failure, basis
The interface that message SN re-calls distributed buffering pond obtains device data request message, and returns to the request message solution
Analyse unit.
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