CN104394209B - A kind of real-time database data transmission method for distributed energy management - Google Patents
A kind of real-time database data transmission method for distributed energy management Download PDFInfo
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- CN104394209B CN104394209B CN201410667219.7A CN201410667219A CN104394209B CN 104394209 B CN104394209 B CN 104394209B CN 201410667219 A CN201410667219 A CN 201410667219A CN 104394209 B CN104394209 B CN 104394209B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
Abstract
The invention discloses a kind of real-time database data transmission method for distributed energy management, is realized based on distributed real-time database, and whole distributed real-time database is made up of multiple unit real-time database nodes.Each node both independent operating or can collectively constitute a distributed real-time database.Multiple real-time database nodes mutually communicate, and provide access interface using publish/subscribe model by message center, composition one is physically distributed formula operation, in logic single distributed real-time database system.The status of each real-time database node is identical, in the absence of key node, so as to improve the reliability of whole real-time database, some node failure does not influence whole real-time database, and inconvenient problem is communicated so as to solve caused by the smart machine in large-scale distributed energy management system is more, gathered data amount is big, separate unit monitoring system real-time database is not easy deployment.
Description
Technical field
The invention belongs to distributed energy management domain, and in particular to a kind of real-time database number for distributed energy management
According to transmission method.
Background technology
With greatly developing for distributed energy, the management of distributed energy also becomes increasingly important.Distributed energy pipe
The use of various smart machines is also more and more in reason system, and substantial amounts of smart machine is linked into system, is brought to real-time database
Immense pressure.In order to improve the process performance of real-time database, a kind of method is that to improve unit by lifting hardware performance real-time
The disposal ability in storehouse, another kind of method are to disperse unit real-time database pressure by multiple nodes.The former is in data volume scale one
Regularly, advantage is preferable in performance, but can then be brought inconvenience during dilatation, so need to consider the factors such as dilatation, redundancy during design, because
This hardware cost is larger.The latter is then relatively easy to dilatation, but due to carrying out distributed deployment by modes such as networks, so processing speed
There is certain inferior position on degree relative to the former, but hardware cost is low.
Due to distributed energy management system management object for transformer station more dispersed, and System Expansion
Possibility is also larger, while the real-time of distributed energy management solutions system requires relatively low for transformer substation system, therefore
The present invention provides a kind of data transmission method using distributed real-time database.
The content of the invention
It is big to solve it is an object of the invention to provide a kind of real-time database data transmission method for distributed energy management
Smart machine in the distributed energy management system of scale is more, gathered data amount is big, separate unit monitoring system real-time database is not easy portion
The inconvenient problem of communication caused by administration.
In order to realize the above object the technical solution adopted in the present invention is：A kind of reality for distributed energy management
When storehouse data transmission method, this method includes transmitting uplink data and downlink data transmission：
Transmitting uplink data comprises the following steps：
(1) smart machine accesses service and receives the real time data from concrete intelligence equipment, and by the real-time number after parsing
Message center is sent to according to message is encapsulated as；
(2) message center forwards the message to subscriber：Internal memory real-time database receives the message of real time data renewal, in renewal
Deposit real-time database；Message center adapter receives the message of real time data renewal, and network is sent to after message is packed；
(3) the message center adapter of other nodes receives real time data new information, and the node sheet is sent to after parsing
The message center on ground, its subscriber is forwarded the message to by the message center of local；
Downlink data transmission comprises the following steps：
I, real-time database client generate the order for being issued to smart machine, and order is encapsulated as into message is sent in message
The heart；
II, message center forward the message to subscriber：Internal memory real-time database receives the message of transmitting order to lower levels, and renewal internal memory is real
Shi Ku；Local intelligent access service receives the message of transmitting order to lower levels, is converted into the agreement of concrete intelligence equipment support
Form, it is issued to specific equipment；Message center adapter receives the message of transmitting order to lower levels, and net is sent to after message is packed
Network；
III, the message center adapter of other nodes receive the message of transmitting order to lower levels, and node local is sent to after parsing
Message center, by local message center forward the message to its subscriber, by smart machine access service will order turn
It is dealt into the equipment specifically performed.
This method also includes alert data and transmitted, and comprises the following steps：
1., in real-time database node configure alert service, alert service subscribes to related local real time data according to configuration；
2., alert service receive corresponding data renewal message when, check alarm rule, if triggering alarm rule,
Produce a warning message and be sent to message center；
3., message center forward the message to subscriber：After message center adapter receives warning message, message is packed
After be sent to network；
4., the message center adapter of other nodes receive warning message, the local message of the node is sent to after parsing
Center, its subscriber is forwarded the message to by the message center of local.
This method also includes dynamic expansion real-time database node, comprises the following steps：
Ith, synchronously have node using configuration tool to configure, while newly-increased node and its relevant configuration；
IIth, preserve after being configured to new node, change configuration file automatically, configuration synchronous service detects that configuration file changes
Automatically configuration file is split into N number of message and is sent to message center；
IIIth, message center forwards the message to subscriber：After message center adapter receives configuration file message, by message
Network is sent to after packaging；
IVth, the message center adapter of other nodes receives configuration file message, and node local is sent to after parsing
Message center, its subscriber is forwarded the message to by the message center of local；
Vth, after the configuration synchronous service of other nodes receives message, check whether configuration file message is complete, disappears when all
After breath is properly reception, configuration file is reverted into local.
This method also includes historical data transmission storage, comprises the following steps：
(i), real-time database node configure historical storage service, historical storage service according to configuration subscription store measuring point, patrol
Collect group and alarm；
(ii), history data store service receives ordered data by message center, and it is lasting to be carried out according to storage rule
Change is handled.
Agency of the message center adapter as message center, network, real-time database section are sent to after local message is packed
Communicated between point using Link-Layer Multicast or UDP multicasts.
Real-time database node is by configuration tool management and safeguards all configurations of real-time database node, including service configuration, number
Configured according to model, device model configures, alarm model configuration.
Real-time database node realizes the synchronization configured between each node by configuring synchronous service, and configuration synchronous service will be real-time
Monitoring is locally configured, and configuration information is issued by message center immediately if changing, and notifies the configuration of other nodes to occur
Change.
Real-time database node configures intelligent buffer service, there is provided the interface of the real-time database node is directly accessed, when the number of access
It is existing according to local real-time database, then the value of local real-time database is directly returned, is searched if in the absence of if in disk buffering, if finding
The value in disk buffering is then returned to, if disk buffering is also not present, intelligent buffer service should by the addition in local real-time database
The information point of data is simultaneously initialized, and checks whether the packet subscribed to where the data, is carried out if not subscribing to automatic
Subscribe to, if having subscribed to but not updated, send calling command messages, it is desirable to will be sent immediately in data.
Local memory real-time database does not subscribe to the real time data of other nodes, transmitting order to lower levels message and warning message；Intelligence is slow
The transmitting order to lower levels message of other nodes is not subscribed in the service of depositing.
The present invention be used for distributed energy management real-time database data transmission method be based on distributed real-time database realization, entirely
Distributed real-time database is made up of multiple unit real-time database nodes.Each node both independent operating or can collectively constitute a distribution
Formula real-time database.Multiple real-time database nodes are mutually communicated, and access interface, group are provided using publish/subscribe model by message center
Formula operation is physically distributed into one, in logic single distributed real-time database system.The status of each real-time database node is
Identical, in the absence of key node, so as to improve the reliability of whole real-time database, some node failure does not influence whole real-time
Storehouse, so as to solve, the smart machine in large-scale distributed energy management system is more, gathered data amount is big, separate unit monitoring system
The inconvenient problem of communication caused by system real-time database is not easy deployment.
This method improves the efficiency of network transmission using Link-Layer Multicast and UDP multicasting technologys, is sent out by distinctive message
Mode is sent to ensure the reliability of data transfer, reduces the resource consumption of TCP communications, improves the speed of data network transmission
Degree, reduce the delay for accessing network node data.
When accessing the data of network real-time database node, accelerate to access network data by intelligent buffer technology, improve from this
Ground accesses the speed of other meshed network data, has both reduced the delay that client obtains data, also therefore need not be all
Data are all put into local memory, reduce the hardware cost of single machine node.
The extension of real-time database node is very convenient, when having new real-time database node increase or configuration change, can lead
Other nodes of dynamic notification line, to reach the synchronous purpose of configuration, and system normal operation are not influenceed.
By in real-time database inserting knot alert service and historical storage service, realizing the transmission of warning message, while often
Can turn into history library node after the service of individual real-time database node deployment history data store, if each real-time database node
Become history library node, then carry out distributed historical storage while can disposing distributed real-time database again, further save and go through
The cost of history storage.
Brief description of the drawings
Fig. 1 is distributed real-time database individual node internal module and data flow diagram.
Embodiment
Below in conjunction with the accompanying drawings and the present invention is described further specific embodiment.
It is distributed real-time database individual node internal module of the present invention and data flow diagram as shown in Figure 1, as seen from the figure,
Whole distributed real-time database is made up of multiple unit real-time database nodes.Each node both independent operating or can collectively constitute one
Distributed real-time database.Multiple real-time database nodes realize the communication between node by Link-Layer Multicast technology and UDP multicasting technologys, lead to
Cross message center and provide access interface using publish/subscribe model, accelerate to access network data by intelligent buffer technology, so as to
Composition one is physically distributed formula operation, in logic single distributed real-time database system.Include on each real-time database node interior
Deposit real-time database, message center, message center adapter, intelligent buffer service, configuration synchronous service, alert service, smart machine
Several compositions such as the service of access, history data store service, service managerZ-HU, configuration tool and adviser tool (not shown)
Part, the role taken on according to node can be with the different services of configuration operation.
First, it is modeled by configuration tool.Configuration tool is used for all configurations for managing and safeguarding real-time database node,
Including service configuration, data model configuration, device model configuration, alarm model configuration etc..Searched for using configuration tool existing
Real-time database node, and actively download their configuration, then add real-time database node using configuration tool, match somebody with somebody for each node
The service for needing to run is put, data access logic component is established on each real-time database node, establishes alarm model and rule, it is necessary to enter
The node of row historical storage is needed to establish storage model and rule, and configuration is written in the repository of each node.
Secondly, other services are started by service managerZ-HU.Service managerZ-HU is that real-time database node administration own services enter
The infrastructure service of journey, it is responsible for starting, guards and monitor other service processes.Each node starts service managerZ-HU first, services
Manager starts corresponding service according to configuration.Internal memory real-time database, message center and message center adapter and the synchronous clothes of configuration
Business is infrastructure service, and each node is required for running；Smart machine accesses service, alert service, intelligent buffer service and history
Storage service is optional service.
Each real-time database node possesses independent internal memory real-time database and message center service, and internal memory real-time database passes through local
Message center provides access interface using publish/subscribe model, and each node can serve as independent real-time database work.
Access interface inside and out each real-time database node offer.Message center provides access using subscription/publication model
Interface, internal memory real-time database then directly provide access interface by API, and real-time database internal services are accessed by both interface modes
The real time data of the machine, advanced application then uniformly provide access interface by distributed real-time database API library.
Real-time database node realizes the message communication between each node by message center adapter.Message center adapter
As the agency of message center, all types of message can be subscribed to, and select to make after local message is packed according to network environment
With Link-Layer Multicast driving or the driving of transport layer UDP multicasts local message is sent to network.When network structure is simple, use
Link-Layer Multicast technology, (it is made up of when network structure is more complicated multiple different networks) and uses UDP multicasting technologys.In message
Heart adapter, can be according to the subscription rules of the local node of configuration, first mistake after subscribing to and receiving the message of other nodes
Message is filtered, the message for meeting subscription rules is forwarded to local messaging center.
Real-time database node realizes the synchronization configured between each node by configuring synchronous service.Configuring synchronous service will be real-time
Monitoring is locally configured, and configuration information is issued by message center immediately if changing, so as to notify other nodes to configure
Change.Configuration synchronous service will be responsible for the configuration of other nodes to be synchronized to local node, and the configuration of each node
Integrate, so that client is by that can understand all information of whole distributed real-time database during this node visit real-time database.
Real-time database node improves the speed from other meshed network data of local IP access by intelligent buffer technology.Intelligence is slow
The service of depositing provides the interface for directly accessing distributed real-time database, when the data local real-time database of access is existing, then directly return
The value of local real-time database, searched if in the absence of if in disk buffering, if returning to the value in disk buffering if finding, if disk
Caching is also not present, and intelligent buffer service is by the information point that the data are added in local real-time database and is initialized, and checks
The packet where the data whether has been subscribed to, has been subscribed to automatically if not subscribing to, if having subscribed to but not updated, has been sent
Call command messages, it is desirable to will be sent immediately in data.Intelligent buffer service is automatically determined by intellectual analysis data access frequency
In internal memory real-time database, which data buffer storage changes automatic dynamic according to frequency and changes number which data buffer storage in disk
According to the distribution of caching.
Smart machine accesses service and is used to communicate with specific smart machine, and the real time data of acquisition is passed through into message center
Issue, and the command messages of correlation are subscribed to, the various orders received are transmitted to specific smart machine to perform.
Real-time database node can also provide alarm and historical storage service.Alert service is the alarm producer, according to being matched somebody with somebody
The model and rule put produce warning message.Historical storage service is to be selected to subscribe to related data according to the storage model of configuration
(history data store service accesses message center without using intelligent buffer service), and the data of subscription are subjected to persistence.
Can turn into history library node after the history data store service of each real-time database node deployment, if each real-time database node
All become history library node, then carry out distributed historical storage while can disposing distributed real-time database again, further save
The cost of historical storage.
Adviser tool in the present invention is used for all services for managing and monitoring real-time database node.
In the data model of real-time database, each measuring point can also be under the jurisdiction of multiple simultaneously in addition to being under the jurisdiction of physical device
Logical groups, each logical groups are nestable definition, and logical groups are cross-nodes, are had in the whole distributed real-time database overall situation
Effect, is not limited in individual node.
The step of upstream data flow of real-time database node is：
(1) smart machine accesses service and receives the real time data (read-only measuring point) from concrete intelligence equipment, and will parsing
Real time data afterwards is encapsulated as message and is sent to message center；
(2) message center forwards the message to subscriber：Internal memory real-time database receives the message of real time data renewal, in renewal
Deposit real-time database；Message center adapter receives the message of real time data renewal, and multicast group is sent to after message is packed；
(3) the message center adapter of other nodes receives real time data new information by multicast group, is sent after parsing
The message center local to the node, its subscriber, but local memory real-time database are forwarded the message to by the message center of local
The real time data message of other nodes is not subscribed to.
In addition, intelligent buffer service receives the real time data new information of other nodes subscribed to, measuring point data is searched
Current storage rule, updated in internal memory real-time database or disk buffering.
Downlink data transmission comprises the following steps：
I, real-time database client generate the order (writeable measuring point) for being issued to smart machine, and order is encapsulated as into message
It is sent to message center；
II, message center forward the message to subscriber：Internal memory real-time database receives the message of transmitting order to lower levels, and renewal internal memory is real
Shi Ku；Local intelligent access service receives the message of transmitting order to lower levels, is converted into the agreement of concrete intelligence equipment support
Form, it is issued to specific equipment；Message center adapter receives the message of transmitting order to lower levels, and multicast is sent to after message is packed
Group；
III, the message center adapter of other nodes receive the message of transmitting order to lower levels, and node local is sent to after parsing
Message center, by local message center forward the message to its subscriber, by smart machine access service will order turn
It is dealt into the equipment specifically performed；But local memory real-time database does not subscribe to the transmitting order to lower levels of other nodes with intelligent buffer service
Message.
The step of alarm flow of real-time database node is：
1., in real-time database node configure alert service, alert service subscribes to related local real time data (bag according to configuration
Include read-only and writeable)；
2., alert service receive corresponding data renewal message when, check alarm rule, if triggering alarm rule,
Produce a warning message and be sent to message center；
3., message center forward the message to subscriber：After message center adapter receives warning message, message is packed
After be sent to network；
4., the message center adapter of other nodes receive warning message, the local message of the node is sent to after parsing
Center, its subscriber is forwarded the message to by the message center of local；The warning message is not updated in internal memory real-time database, only logical
Cross message center issue and subscribe to.
The step of dynamic expansion real-time database node is：
Ith, synchronously have node using configuration tool and configure (if first node is then synchronous less than any configuration), simultaneously
Newly-increased node and its relevant configuration, including data access logic component (smart machine, measuring point and logical groups), alarm model etc.；
IIth, preserve after being configured to new node, change configuration file automatically, configuration synchronous service detects that configuration file changes
Automatically configuration file is split into N number of message and is sent to message center；
IIIth, message center forwards the message to subscriber：After message center adapter receives configuration file message, by message
Network is sent to after packaging；
IVth, the message center adapter of other nodes receives configuration file message, and node local is sent to after parsing
Message center, its subscriber is forwarded the message to by the message center of local；
Vth, after the configuration synchronous service of other nodes receives message, check whether configuration file message is complete, disappears when all
After breath is properly reception, configuration file is reverted into local.
History data store flow have the step of be：
(i), real-time database node configure historical storage service, historical storage service according to configuration subscription store measuring point, patrol
Collect group and alarm；
(ii), history data store service receives ordered data by message center, and it is lasting to be carried out according to storage rule
Change is handled.
Above example is only used for helping the core concept for understanding the present invention, it is impossible to the present invention is limited with this, for ability
The technical staff in domain, every thought according to the present invention, the present invention is modified or equivalent substitution, in embodiment
And any change done in application, it should be included in the scope of the protection.
Claims (9)
- A kind of 1. real-time database data transmission method for distributed energy management, it is characterised in that：This method includes upper line number According to transmission and downlink data transmission：Transmitting uplink data comprises the following steps：(1) smart machine accesses service and receives the real time data from concrete intelligence equipment, and the real time data after parsing is sealed Fill and be sent to message center for message；(2) message center forwards the message to subscriber：Internal memory real-time database receives the message of real time data renewal, and renewal internal memory is real Shi Ku；Message center adapter receives the message of real time data renewal, and network is sent to after message is packed；(3) the message center adapter of other nodes receives real time data new information, and node local is sent to after parsing Message center, its subscriber is forwarded the message to by the message center of local；Downlink data transmission comprises the following steps：I, real-time database client generate the order for being issued to smart machine, and order is encapsulated as into message is sent to message center；II, message center forward the message to subscriber：Internal memory real-time database receives the message of transmitting order to lower levels, and renewal internal memory is real-time Storehouse；Local intelligent access service receives the message of transmitting order to lower levels, is converted into the agreement lattice of concrete intelligence equipment support Formula, it is issued to specific equipment；Message center adapter receives the message of transmitting order to lower levels, and network is sent to after message is packed；III, the message center adapter of other nodes receive the message of transmitting order to lower levels, and disappearing for node local is sent to after parsing Breath center, its subscriber is forwarded the message to by the message center of local, accessing service by smart machine forwards the command to In the equipment specifically performed.
- 2. the real-time database data transmission method according to claim 1 for distributed energy management, it is characterised in that：Should Method also includes alert data and transmitted, and comprises the following steps：1., in real-time database node configure alert service, alert service subscribes to related local real time data according to configuration；2., alert service receive corresponding data renewal message when, check alarm rule, if triggering alarm rule, produce One warning message is sent to message center；3., message center forward the message to subscriber：After message center adapter receives warning message, sent out after message is packed It is sent to network；4., the message center adapter of other nodes receive warning message, the local message center of the node is sent to after parsing, Its subscriber is forwarded the message to by the message center of local.
- 3. the real-time database data transmission method according to claim 1 for distributed energy management, it is characterised in that：Should Method also includes dynamic expansion real-time database node, comprises the following steps：Ith, synchronously have node using configuration tool to configure, while newly-increased node and its relevant configuration；IIth, preserve after being configured to new node, change configuration file automatically, configuration synchronous service detects that configuration file change is automatic Configuration file is split into N number of message and is sent to message center；IIIth, message center forwards the message to subscriber：After message center adapter receives configuration file message, message is packed After be sent to network；IVth, the message center adapter of other nodes receives configuration file message, and the local message of the node is sent to after parsing Center, its subscriber is forwarded the message to by the message center of local；Vth, after the configuration synchronous service of other nodes receives message, check configuration file message it is whether complete, when all message all After being properly received, configuration file is reverted into local.
- 4. the real-time database data transmission method according to claim 1 for distributed energy management, it is characterised in that：Should Method also includes historical data transmission storage, comprises the following steps：(i) historical storage service, is configured in real-time database node, historical storage service is according to measuring point, the logical groups for configuring subscription store And alarm；(ii), history data store service receives ordered data by message center, is carried out according to storage rule at persistence Reason.
- 5. the real-time database data transmission method according to claim 1 for distributed energy management, it is characterised in that：Disappear Agency of the center adapter as message center is ceased, network is sent to after local message is packed, is used between real-time database node Link-Layer Multicast or UDP multicasts are communicated.
- 6. the real-time database data transmission method according to claim 1 for distributed energy management, it is characterised in that：It is real When storehouse node by configuration tool management and safeguard all configurations of real-time database node, including the configuration of service configuration, data model, Device model configuration, alarm model configuration.
- 7. the real-time database data transmission method according to claim 1 for distributed energy management, it is characterised in that：It is real When storehouse node realize the synchronization configured between each node by configuring synchronous service, configuration synchronous service will monitor local matches somebody with somebody in real time Put, configuration information is issued by message center immediately if changing, notify the configuration of other nodes to change.
- 8. the real-time database data transmission method according to claim 1 for distributed energy management, it is characterised in that：It is real When the configuration intelligent buffer service of storehouse node, there is provided the interface of the real-time database node is directly accessed, when the data of access are locally real-time Storehouse is existing, then directly returns to the value of local real-time database, is searched if in the absence of if in disk buffering, disk is returned if finding Value in caching, if disk buffering is also not present, intelligent buffer service will add the information of the data in local real-time database Put and initialized, check whether the packet subscribed to where the data, subscribed to automatically if not subscribing to, if Subscribe to but do not update, then send calling command messages, it is desirable to will be sent immediately in data.
- 9. the real-time database data transmission method according to claim 8 for distributed energy management, it is characterised in that：This Ground internal memory real-time database does not subscribe to the real time data of other nodes, transmitting order to lower levels message and warning message；Intelligent buffer service is not ordered Read the transmitting order to lower levels message of other nodes.
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| CN105095421A (en) * | 2015-07-14 | 2015-11-25 | 南京国电南自美卓控制系统有限公司 | Distributed storage method for real-time database |
| US11301422B2 (en) | 2016-02-23 | 2022-04-12 | Samsung Electronics Co., Ltd. | System and methods for providing fast cacheable access to a key-value device through a filesystem interface |
| CN108737514A (en) * | 2018-05-04 | 2018-11-02 | 南京国电南自轨道交通工程有限公司 | A kind of distributed power method for real-time monitoring based on distributed data base technique |
| CN110865615A (en) * | 2019-11-05 | 2020-03-06 | 深圳供电局有限公司 | Energy analysis method and system |
| CN111027098B (en) * | 2019-12-09 | 2022-03-18 | 广州信天翁信息科技有限公司 | Data management model based on three-layer architecture |
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| CN102280937A (en) * | 2011-07-29 | 2011-12-14 | 深圳市科陆电子科技股份有限公司 | Distributed energy monitoring system and method |
| CN102647466A (en) * | 2012-03-31 | 2012-08-22 | 中国电力技术装备有限公司北京分公司 | Distributed energy integrated management system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102280937A (en) * | 2011-07-29 | 2011-12-14 | 深圳市科陆电子科技股份有限公司 | Distributed energy monitoring system and method |
| CN102647466A (en) * | 2012-03-31 | 2012-08-22 | 中国电力技术装备有限公司北京分公司 | Distributed energy integrated management system |
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