CN105139270A - DDS standard based design method for real-time data service of power grid regulation system - Google Patents
DDS standard based design method for real-time data service of power grid regulation system Download PDFInfo
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- CN105139270A CN105139270A CN201510476888.0A CN201510476888A CN105139270A CN 105139270 A CN105139270 A CN 105139270A CN 201510476888 A CN201510476888 A CN 201510476888A CN 105139270 A CN105139270 A CN 105139270A
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Abstract
The present invention discloses a DDS standard based design method for a real-time data service of a power grid regulation system. According to a DDS standard, by taking power grid scheduling data as a center, the method provides topic registration for a publisher, is provided for a subscriber to subscribe to a topic on line, adopts an adaptive QoS policy based on an association relationship between a power grid device and data in data publishing, and provides powerful support for real-time sharing of power grid regulation data; and a data snapshot layer based on an application data structure is designed, and the data snapshot layer is seamlessly fused with existing applications of the system.
Description
Technical field
The present invention relates to a kind of method for designing of the power grid regulation system Real-time Data Service based on DDS standard, belong to technical field of power dispatching automation.
Background technology
Along with the all-round construction of intelligent grid, power grid regulation is faced with the problem such as extra-high voltage alternating current-direct current interconnected power grid safety running control, extensive new forms of energy access, the kind of electric system real time data and quantity are in continuous increase, data acquisition modes is also from centralized to distributed development, and data interaction quantity, quality and efficiency requirements between regulator control system increase day by day.Electric system real time data contains production run condition information, enterprise operation data etc., it not only reflects system current device operation conditions, for daily monitoring and dispatching provides support, and by analyzing and processing to real time data, can monitor for power grid security, power quantity predicting, the become more meticulous predictive maintenances such as operation and operation management decision-making provide scientific basis.
Due to each real-time or non real-time subsystems such as monitoring, control, management, analysis often different times different majors be responsible for construction, lack unified standard, the set of subsystems desired data, also incomplete same to the requirement of real-time of data, substantially be all realize in the mode of data retransmission stipulations in the past, and be difficult to accomplish that real time data information is shared fast, conveniently.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of method for designing of the power grid regulation system Real-time Data Service based on DDS standard.
In order to achieve the above object, the technical solution adopted in the present invention is:
Based on the method for designing of the power grid regulation system Real-time Data Service of DDS standard, comprise the following steps,
Step one, data publisher provides theme, publisher QoS and cycle to service, and asks theme to be registered;
Step 2, serves in subject heading list, to record theme and publisher, theme and publisher QoS, mapping relations between theme and cycle;
Step 3, data subscription person needs the theme of subscription, the QoS of subscription and cycle to services request;
Step 4, whether service-seeking exists the theme of request, whether the QoS met the demands is there is in the publisher that theme is corresponding, exist and then subscriber and topic of subscription, mapping relations between subscriber and subscription QoS are recorded in subscription table, proceed to step 5, do not exist, inform Subscriber subscriptions's failure;
Step 5, subscriber enters listening state;
Step 6, data publisher submits to service by needing the data issued, and serves to be write and issues buffer zone;
Step 7, service QoS strategy judges whether the data issued in buffer zone meet the condition issuing QoS, if satisfied condition, notify that subscriber monitors module, upgrades data snapshot layer with distributing data simultaneously;
Step 8, service QoS strategy judges whether distributing data exists the data relevant with it, if had, improves the QoS of associated data;
Step 9, when subscriber has listened to data publication, reads data and passes to application process.
Subject data comprises collection capacity and calculated amount, and the QoS of collection capacity is generally DEADLINE, namely at least transmits once in designated period, and the QoS of calculated amount is generally TIME_BASED_FILTER, namely in designated period at the most once.
The beneficial effect that the present invention reaches: the present invention is according to DDS standard, with dispatching of power netwoks data grid technology, for publisher provides theme to register, for subscriber's on-line subscription theme, the Adaptive QoS strategy based on grid equipment and data correlation relation is have employed, for power grid regulation real-time data sharing provides strong support in data publication; And the data snapshot layer devised based on application data structure, merge with the existing application seamless of system.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, based on the method for designing of the power grid regulation system Real-time Data Service of DDS standard, comprise the following steps:
Step one, data publisher provides theme, publisher QoS and cycle to service, and asks theme to be registered;
Subject data comprises collection capacity and calculated amount, and the QoS of collection capacity is generally DEADLINE, namely at least transmits once in designated period, and the QoS of calculated amount is generally TIME_BASED_FILTER, namely in designated period at the most once.
Step 2, serves in subject heading list, to record theme and publisher, theme and publisher QoS, mapping relations between theme and cycle.
Step 3, data subscription person needs the theme of subscription, the QoS of subscription and cycle to services request.
Step 4, whether service-seeking exists the theme of request, whether the QoS met the demands is there is in the publisher that theme is corresponding, exist and then subscriber and topic of subscription, mapping relations between subscriber and subscription QoS are recorded in subscription table, proceed to step 5, do not exist, inform Subscriber subscriptions's failure.
Step 5, subscriber enters listening state.
Step 6, data publisher submits to service by needing the data issued, and serves to be write and issues buffer zone.
Step 7, service QoS strategy judges whether the data issued in buffer zone meet the condition issuing QoS, if satisfied condition, notify that subscriber monitors module, upgrades data snapshot layer with distributing data simultaneously.
Step 8, service QoS strategy judges whether distributing data exists the data relevant with it, if had, improves the QoS of associated data.
Step 9, when subscriber has listened to data publication, reads data and passes to application process.
The method for designing of the above-mentioned power grid regulation system Real-time Data Service based on DDS standard, according to DDS standard, with dispatching of power netwoks data grid technology, for publisher provides theme to register, for subscriber's on-line subscription theme, the Adaptive QoS strategy based on grid equipment and data correlation relation is have employed, for power grid regulation real-time data sharing provides strong support in data publication; And the data snapshot layer devised based on application data structure, merge with the existing application seamless of system.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (2)
1., based on the method for designing of the power grid regulation system Real-time Data Service of DDS standard, it is characterized in that: comprise the following steps,
Step one, data publisher provides theme, publisher QoS and cycle to service, and asks theme to be registered;
Step 2, serves in subject heading list, to record theme and publisher, theme and publisher QoS, mapping relations between theme and cycle;
Step 3, data subscription person needs the theme of subscription, the QoS of subscription and cycle to services request;
Step 4, whether service-seeking exists the theme of request, whether the QoS met the demands is there is in the publisher that theme is corresponding, exist and then subscriber and topic of subscription, mapping relations between subscriber and subscription QoS are recorded in subscription table, proceed to step 5, do not exist, inform Subscriber subscriptions's failure;
Step 5, subscriber enters listening state;
Step 6, data publisher submits to service by needing the data issued, and serves to be write and issues buffer zone;
Step 7, service QoS strategy judges whether the data issued in buffer zone meet the condition issuing QoS, if satisfied condition, notify that subscriber monitors module, upgrades data snapshot layer with distributing data simultaneously;
Step 8, service QoS strategy judges whether distributing data exists the data relevant with it, if had, improves the QoS of associated data;
Step 9, when subscriber has listened to data publication, reads data and passes to application process.
2. the method for designing of the power grid regulation system Real-time Data Service based on DDS standard according to claim 1, it is characterized in that: subject data comprises collection capacity and calculated amount, the QoS of collection capacity is generally DEADLINE, namely at least transmit once in designated period, the QoS of calculated amount is generally TIME_BASED_FILTER, namely in designated period at the most once.
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CN108174358A (en) * | 2017-12-14 | 2018-06-15 | 沈阳无距科技有限公司 | Flight trunking communication method, device and system |
CN108289118A (en) * | 2017-12-12 | 2018-07-17 | 北京奇艺世纪科技有限公司 | A kind of management method and device of distributed message stream |
CN109274093A (en) * | 2018-10-19 | 2019-01-25 | 北京中电普华信息技术有限公司 | A kind of electric power resource scheduling system |
CN109327341A (en) * | 2018-11-16 | 2019-02-12 | 中国电力科学研究院有限公司 | A kind of distributed simulation method towards power telecom network |
CN111935308A (en) * | 2020-09-17 | 2020-11-13 | 中国人民解放军国防科技大学 | Space-time-frequency resource data subscription and release method and device in space dynamic network |
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CN103166975A (en) * | 2013-04-03 | 2013-06-19 | 上海航天测控通信研究所 | Data distribution service (DDS) communication system |
CN103731504A (en) * | 2014-01-16 | 2014-04-16 | 国网山东省电力公司青岛供电公司 | Method for DDS communication in field of power distribution networks |
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CN101848236A (en) * | 2010-05-06 | 2010-09-29 | 北京邮电大学 | Real-time data distribution system with distributed network architecture and working method thereof |
CN103166975A (en) * | 2013-04-03 | 2013-06-19 | 上海航天测控通信研究所 | Data distribution service (DDS) communication system |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108289118A (en) * | 2017-12-12 | 2018-07-17 | 北京奇艺世纪科技有限公司 | A kind of management method and device of distributed message stream |
CN108174358A (en) * | 2017-12-14 | 2018-06-15 | 沈阳无距科技有限公司 | Flight trunking communication method, device and system |
CN108174358B (en) * | 2017-12-14 | 2021-05-18 | 沈阳无距科技有限公司 | Flight cluster communication method, device and system |
CN109274093A (en) * | 2018-10-19 | 2019-01-25 | 北京中电普华信息技术有限公司 | A kind of electric power resource scheduling system |
CN109327341A (en) * | 2018-11-16 | 2019-02-12 | 中国电力科学研究院有限公司 | A kind of distributed simulation method towards power telecom network |
CN111935308A (en) * | 2020-09-17 | 2020-11-13 | 中国人民解放军国防科技大学 | Space-time-frequency resource data subscription and release method and device in space dynamic network |
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