CN108320126A - A kind of grid company province ground county's Integrated management system - Google Patents
A kind of grid company province ground county's Integrated management system Download PDFInfo
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Abstract
The present invention relates to electric system, more particularly to a kind of grid company province ground county's Integrated management system, the grid company province county's Integrated management system include project management system and power failure early warning system.The project management system includes provincial project management system, districts and cities' project management system, project management system at county level；Project management flow of the project management system with establishing standard according to provincial company project management specification, with realizing province county's three-level deployment, when there is the update of flow progress msg, trigger data synchronization request, it is synchronized by transregional strange land data synchronization mechanism implementation process, solve the problems, such as transregional Network database information can not real-time synchronization, with realizing electricity power engineering project province county integration, flattening management mode.
Description
Technical Field
The invention relates to an electric power system, in particular to a province, region and county integrated management system of a power grid company.
Background
At present, power grid engineering projects of provinces, districts and counties of power grid companies are maintained and managed in local systems of the power grid companies, in order to respond to the integrated and flat management requirements of state and network, each power grid and province company needs to realize integrated management of the project of the province, district and county three-level company, and the project is subjected to centralized examination, approval, monitoring, tracking and acceptance in the province company.
Because the safety of a power grid is considered, the whole network realizes network area division through physical isolation, the whole network is divided into four large areas I, II, III and IV according to safety levels, communication isolation is carried out among the safety areas, and data communication needs to be carried out through a physical isolation device. At present, the network areas are different according to different service management requirements of each region. In order to realize the integrated management of the province, prefecture and county engineering projects and the real-time synchronization of the engineering data of each region, a set of data synchronization mechanism which is across a network safety region and a network section is developed based on a TCP protocol, the real-time synchronization of a trans-regional database and a remote database is realized, the province, prefecture and county three-level deployment of the power grid engineering project management process is realized, the data synchronization of a three-level management process is realized through the trans-regional and remote synchronization mechanism of the database, and the integrated management of the province, prefecture and county.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a province, prefecture and county integrated management system of a power grid company.
The project management system comprises a provincial project management system, a city project management system and a county project management system;
the provincial engineering management system, the prefecture engineering management system and the county engineering management system respectively comprise a research book compiling module, a responsibility auditing module, a leader auditing module, a provincial company responsibility auditing module, a provincial company leader auditing module, a plan issuing module, an engineering implementation module and a project acceptance module;
and data synchronization can be realized among corresponding modules in a provincial level project management system, a prefecture project management system and a county level project management system of the project management system.
The method for implementing data synchronization comprises the steps of adopting a remote data synchronization copying method based on a database Redo log mode to realize that the Redo log on a host is sent to a remote server by crossing an isolation device in an MAL mode based on a TCP protocol; according to the method, the data transmission with large transaction amount is realized by the real-time reading of the Redo log with low resource occupation, and only submitted data is synchronized, so that the consistency of the data is ensured; the system has an intelligent transaction recombination and operation merging mechanism and supports parallel processing; the data compression and encryption are supported and provided so as to reduce the bandwidth required by transmission and improve the transmission safety;
the first step is as follows: the database synchronization of the cross-security large area based on the TCP protocol and the Redo log of the database; the system is used for detecting the update condition of the Redo log of the database in real time, when the local database has data update, a data synchronization request is triggered, the update data is packaged according to a specified format, the packaged data is packaged secondarily according to the specification of an isolating device and then is sent to a data receiving side of the isolating device, the Redo log is transmitted according to an MAL format, the data receiving side analyzes the packaged data and the Redo log in sequence, the validity of the data is judged, the database of the data receiving side is updated in time, and data synchronization is achieved;
the second step is that: according to the engineering project management requirements and the management process, connecting a local database, and storing process flow information through the database;
the third step: and completing data synchronization according to a database cross-region synchronization mechanism.
The invention provides a comprehensive integrated management system for provinces, regions and counties of a power grid company. The project management system comprises a provincial project management system, a city project management system and a county project management system; the project management system establishes a standard project management process according to the project management specifications of province companies, three-level deployment of provinces, districts and counties is achieved, when process progress information is updated, a data synchronization request is triggered, process synchronization is achieved through a trans-regional and non-regional data synchronization mechanism, the problem that trans-regional network database information cannot be synchronized in real time is solved, and an integrated and flat management mode of the province, the district and county of the power grid project is achieved.
The real-time synchronization and data accuracy of the engineering management system depend on the stability of the power failure early warning system to a great extent, faults can be found in time and eliminated, and meanwhile, data can be backed up. If the power failure early warning system breaks down, the power failure can cause sudden power failure under the condition of no preparation, so that data loss is caused, and synchronization cannot be realized. Meanwhile, the level of the power supply reliability of the power distribution network directly influences the level of the quality of electric energy obtained by power users in the power supply system, and a qualified power supply enterprise measures the technical equipment level and the management level of the qualified power supply enterprise by means of the continuous power supply capacity of the qualified power supply enterprise. The power distribution network power supply reliability information directly reflects the power supply capacity of the power supply system to users, and is comprehensive reflection of meeting national economic electric energy requirements and power supply service management level of the power supply system in the power industry. The power system must satisfy the increasing demand of social power utilization and establish the enterprise image of the power system, so that the improvement of the power supply reliability level of the power distribution network becomes a imperative work for the power company.
At present, power failure events of an electric power system can only be reported and counted after the accidents, and power failure early warning cannot be carried out through data acquisition in advance, so that people are inconvenient to live, the reliability of a power distribution network is reduced, and the electric power system can only passively undertake troubles caused by the power failure events. If the power failure event can be predicted immediately and countermeasures can be taken in advance, the passive situation can be greatly improved.
Therefore, further, the power outage early warning system comprises: the system comprises a master station device, a wireless communication network, a power utilization information acquisition terminal and an alarm device; the master station equipment comprises an online monitoring client and a monitoring control center; the electricity consumption information acquisition terminal comprises a main controller, a memory, an AD converter, an operation display panel, a wireless communication module, a data input interface and a data output interface; the AD converter of the electricity consumption information acquisition terminal is respectively and electrically coupled with the monitoring points of the public transformer, the special transformer and the on-column vacuum switch, and the data input interface and the data output interface of the electricity consumption information acquisition terminal are respectively and electrically coupled with the data output interface and the data input interface of the electric energy meter; the on-line monitoring system comprises a main controller, a wireless communication module, a monitoring control center, an on-line monitoring client and a monitoring control center, wherein the main controller conducts polling collection on monitoring points of a public transformer, a special transformer, an on-column vacuum switch and an electric energy meter through a set time period, collected power line data and electric energy information are sent back to a storage in a data packet mode, the wireless communication module uploads the information on the storage to the monitoring control center through a wireless communication network, and the on-line monitoring client calculates three-phase voltage, three-phase current, three-phase active power, three-phase reactive power, three-phase apparent power and three-phase power factor of a power line according to the collected data stored by the monitoring.
Furthermore, the power utilization information acquisition terminal comprises a fire detection device, an infrared sensor for detecting the position of a fire source and a fixed-point self-extinguishing device;
the fire detection device includes: the device comprises a calculation unit, a smoke concentration sensor and a temperature sensor which are electrically connected with the calculation unit respectively;
the fixed point self-extinguishing device comprises: the dry powder fire extinguisher comprises a dry powder fire extinguisher and a control unit for automatically controlling the switch of the dry powder fire extinguisher, wherein the control unit is electrically connected with the computing power supply.
Furthermore, the fixed point self-extinguishing device also comprises a manipulator for controlling the position and the direction of a nozzle of the dry powder fire extinguisher, and an attitude calculation unit and an attitude control unit of the manipulator.
The mechanical arm comprises a mechanical arm and a nozzle fixing device arranged at the tail end of the mechanical arm, the mechanical arm comprises through holes penetrating through the head end and the tail end of the mechanical arm, a spray pipe of the dry powder fire extinguisher is arranged in the through holes, and a nozzle of the spray pipe is fixed on the mechanical arm.
The mechanical arm is formed by connecting a plurality of secondary arms pairwise through movable joints, and the gesture control unit controls the movable joints to act according to the calculation result of the gesture calculation unit, so that the gesture of the mechanical arm is controlled. The movable joint comprises a first connecting portion and a second connecting portion which are connected through three cylinders, the cylinders are arranged in a triangular mode, and the length of each cylinder is controlled through adjustment of the length of each cylinder.
Furthermore, a distance measuring device for preventing collision is arranged on the manipulator.
Further, a remote camera is arranged on the manipulator.
Furthermore, the system also comprises an audible and visual alarm unit electrically connected with the computing unit.
The invention provides a method for carrying out power failure early warning based on any one of the power failure early warning systems, which comprises the following steps:
the power utilization information acquisition terminal acquires three-phase voltage and three-phase current of a distribution line in real time and judges whether power failure early warning conditions are met or not;
when the collected single-phase load current is larger than the starting current, the phase voltage is lower than 78% of the normal working voltage of the electric energy meter, and the duration is longer than 1 minute, the alarm device sends out power failure early warning alarm;
when each phase voltage is lower than the critical voltage of the electric energy meter and the single-phase load current is smaller than the starting current, the alarm device sends out power failure early warning alarm;
when the single-phase load current is greater than 5% of rated current and each phase voltage is lower than the critical voltage of the electric energy meter, the alarm device sends out power failure early warning alarm;
when the voltage of each phase is greater than the critical voltage of the electric energy meter, any one or two phases of three-phase current are less than the starting current, and the load current of other phase lines is greater than 5% of rated current, the alarm device sends out power failure early warning alarm.
The invention has the beneficial effects that: according to the project management system in the province, prefecture and county integrated management system of the power grid company, the standard project management process is established according to the province, prefecture and county project management specifications, three-level deployment of province, prefecture and county is achieved, when process progress information is updated, a data synchronization request is triggered, process synchronization is achieved through a trans-regional and non-local data synchronization mechanism, the problem that trans-regional network database information cannot be synchronized in real time is solved, and the province, prefecture and county integrated and flat management mode of the power grid project is achieved.
The power failure early warning system in the comprehensive integrated management system of provinces, counties and counties of the power grid company provides a technical means for a power distribution system to take power failure preventive measures in advance, and inconvenience caused by power failure events is improved. Meanwhile, the fire detection device and the self-extinguishing device are arranged in the power utilization information acquisition terminal, so that the working reliability of the power utilization information acquisition terminal in the power distribution system is higher, and the misoperation of power failure early warning is less.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of an engineering management system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a power outage warning system according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a power consumption information acquisition terminal according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a movable joint according to an embodiment of the present invention;
FIG. 5 is a schematic view of a secondary arm according to an embodiment of the present invention;
FIG. 6 is a schematic structural view of a spout fixing device according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of a spout fixing device according to another embodiment of the present invention;
FIG. 8 is a schematic diagram illustrating a power outage warning method according to an embodiment of the present invention;
the reference numbers are as follows:
| 10. electricity consumption information acquisition terminal | 11. Main controller | 12. AD converter |
| 13. Memory device | 14. Operation display panel | 15. Data input interface |
| 16. Data output interface | 17. Wireless communication module | 20. Wireless communication network |
| 30. Master station device | 40. Alarm device | 100. Body |
| 200. Circuit board | 201. Electrical unit | 301. Smoke concentration sensor |
| 302. Temperature sensor | 400. Fire extinguisher | 500. Mechanical arm |
| 510. Secondary arm | 520. Movable joint | 530. Spout fixing device 530 |
| 511. Nozzle mounting hole | 521. First connecting part | 522. Second connecting part |
| 523. First mounting hole | 524. Second mounting hole | 525. Cylinder |
| 526. Spherical hinge | 531. Connecting body | 532. Second through hole |
| 533. A first clamping part | 534. Second clamping part | 535. Distance measuring device |
| 536. Remote camera |
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.
Referring to fig. 1, a project management system provided in an embodiment of the present invention includes a provincial project management system a1, a prefecture project management system a2, and a prefecture project management system A3;
the provincial engineering management system is used for provincial engineering project management and comprises a book-capable compiling module, a responsibility auditing module, a leader auditing module, a provincial company responsibility auditing module, a provincial company leader auditing module, a plan issuing module, an engineering implementation module and a project acceptance module;
the prefecture project management system is used for prefecture project management and comprises a gradable book compiling module, a responsibility auditing module, a leader auditing module, a province company responsibility auditing module, a province company leader auditing module, a plan issuing module, a project implementing module and a project acceptance module;
the county-level project management system is used for county-level project management and comprises a research book compiling module, a responsibility auditing module, a leader auditing module, a province company responsibility auditing module, a province company leader auditing module, a plan issuing module, a project implementing module and a project acceptance module;
and data synchronization can be realized among corresponding modules in a provincial level project management system, a prefecture project management system and a county level project management system of the project management system.
Referring to fig. 2, a method and steps for implementing data synchronization provided in an embodiment of the present invention are that a remote data synchronization replication method based on a database Redo log mode is adopted to implement sending a Redo log on a host to a remote server across an isolation device based on a TCP protocol in an MAL mode; according to the method, the data transmission with large transaction amount is realized by the real-time reading of the Redo log with low resource occupation, and only submitted data is synchronized, so that the consistency of the data is ensured; the system has an intelligent transaction recombination and operation merging mechanism and supports parallel processing; the data compression and encryption are supported and provided so as to reduce the bandwidth required by transmission and improve the transmission safety;
the first step is as follows: the database synchronization of the cross-security large area based on the TCP protocol and the Redo log of the database; the system is used for detecting the update condition of the Redo log of the database in real time, when the local database has data update, a data synchronization request is triggered, the update data is packaged according to a specified format, the packaged data is packaged secondarily according to the specification of an isolating device and then is sent to a data receiving side of the isolating device, the Redo log is transmitted according to an MAL format, the data receiving side analyzes the packaged data and the Redo log in sequence, the validity of the data is judged, the database of the data receiving side is updated in time, and data synchronization is achieved;
the second step is that: according to the engineering project management requirements and the management process, connecting a local database, and storing process flow information through the database;
the third step: and completing data synchronization according to a database cross-region synchronization mechanism.
Referring to fig. 2, an embodiment of the power outage early warning system of the present invention includes: the system comprises a master station device 30, a wireless communication network 20, an electricity consumption information acquisition terminal 10 and an alarm device 40; the master station device 30 includes an online monitoring client and a monitoring control center; the electricity consumption information acquisition terminal 10 comprises a main controller 11, a memory 13, an AD converter 12, an operation display panel 14, a wireless communication module 17, a data input interface 15 and a data output interface 16; the AD converter 12 of the electricity consumption information acquisition terminal 10 is respectively and electrically coupled with a public transformer, a special transformer and a monitoring point of the vacuum switch on the column, and the data input interface 15 and the data output interface 16 of the electricity consumption information acquisition terminal 10 are respectively and electrically coupled with the data output interface 16 and the data input interface 15 of the electric energy meter; the main controller 11 performs polling collection on monitoring points of a public transformer, a special transformer, a vacuum switch on the column and an electric energy meter through a set time period, sends collected power line data and electric energy information back to the storage 13 in the form of data packets, the wireless communication module 17 uploads the information on the storage 13 to a monitoring control center through the wireless communication network 20, and the online monitoring client calculates three-phase voltage, three-phase current, three-phase active power, three-phase reactive power, three-phase apparent power and three-phase power factor of a power line according to the collected data stored by the monitoring control center and compares the three-phase voltage, the three-phase current, the three-phase active power, the three-phase reactive power, the three-phase apparent power.
The power failure early warning system and the power failure early warning method provide a technical means for the power distribution system to take power failure preventive measures in advance, and improve inconvenience caused by power failure events.
Referring to fig. 3 to 6, specifically, the power consumption information acquiring terminal 10 in this embodiment further includes: the fire extinguishing device comprises a body 100, a circuit board 200 provided with a plurality of electric units 201, a fire detection device, an infrared sensor for detecting the position of a fire source and a fixed point self-extinguishing device.
The fire detection device includes: a calculating unit, and a smoke concentration sensor 301 and a temperature sensor 302 which are respectively electrically connected with the calculating unit; the fixed point self-extinguishing device comprises: the dry powder fire extinguisher 400 and a control unit for automatically controlling the switch of the dry powder fire extinguisher 400, wherein the control unit is electrically connected with the computing power supply.
The fixed point self-extinguishing device further comprises a manipulator 500 for controlling the position and the direction of the nozzle of the dry powder fire extinguisher 400, and an attitude calculation unit and an attitude control unit of the manipulator 500.
The power failure early warning system of the embodiment is provided with the fire detection device and the self-extinguishing device in the power consumption information acquisition terminal 10, so that the working reliability of the power consumption information acquisition terminal 10 in the power distribution system is higher, and the misoperation of power failure early warning is less. The specific working principle is that the calculating unit obtains the smoke concentration from the smoke sensor, obtains the temperature value from the temperature sensor 302, calculates and judges whether a fire occurs or not according to the smoke concentration and the temperature value, if so, the accurate position of the fire point is determined through the infrared sensor. The fixed-point fire extinguishing apparatus can perform fixed-point fire extinguishing by positioning the movable end of the nozzle of the fire extinguisher 400 near and at the fire point through the manipulator 500 according to the detected fire point position. The fixed-point fire extinguishing can effectively improve the use efficiency of the fire extinguisher 400, thereby improving the fire extinguishing effect.
The mechanical arm 500 of the embodiment comprises a mechanical arm and a nozzle fixing device 530 arranged at the tail end of the mechanical arm, the mechanical arm is provided with a first through hole penetrating through the head and tail ends of the mechanical arm, a spray pipe of the dry powder fire extinguisher 400 is arranged in the through hole, and a nozzle of the spray pipe is fixed on the nozzle fixing device 530. The spout fixing device 530 comprises a connecting body 531, and a first clamping portion 533 and a second clamping portion 534 which are slidably mounted on the front end surface of the mounting body, wherein the connecting body 531 is provided with a second through hole 532 corresponding to the first through hole, and the two clamping portions are symmetrically arranged on two sides of the second through hole 532 and used for clamping the spout of the spray pipe when the two clamping portions slide relatively to each other.
In order to prevent the manipulator 500 from touching the obstacles during the moving process and causing other faults, the power consumption information acquisition terminal 10 is provided with various obstacles such as the PCB 200 and cables, and specifically, the manipulator is formed by connecting a plurality of secondary arms 510 in pairs through movable joints 520, wherein the secondary arms 510 are provided with nozzle mounting holes 511 penetrating through the head and tail ends of the secondary arms 510, and the attitude control unit controls the movable joints 520 to act according to the calculation result of the attitude calculation unit, so as to control the attitude of the manipulator 500. The movable joint 520 comprises a first connecting part 521 and a second connecting part 522 which are connected through three cylinders 525, the first connecting part 521 and the second connecting part 522 are respectively provided with a first mounting hole 523 and a second mounting hole 523 which are used for penetrating through a spray pipe of the fire extinguisher 400, the three cylinders 525 are arranged in a triangular shape, in order to reduce resistance, the movement of the mechanical arm is more flexible, two ends of the cylinders 525 are respectively connected with the connecting parts through spherical hinges 526, it should be understood that the connection between the cylinders 525 and the connecting parts is not limited to the connection through the spherical hinges 526, and can also be a universal shaft or other connecting parts, even no middle connecting part is arranged, the cylinders 525 and the connecting parts are in hard connection, the basic action can be realized by utilizing the elastic deformation of the cylinders 525 per se, and the use requirement is met. The included angle between the first connecting part 521 and the second connecting part 522 is controlled by adjusting the lengths of the three air cylinders 525 respectively. Therefore, the manipulator 500 can rotate at any position of each joint, and the whole manipulator can be twisted at will to bypass obstacles.
Referring to fig. 7, in order to further improve the barrier effect of the manipulator 500, a distance measuring device 535 and a remote camera 536 for collision prevention are provided on the front surface of the spout fixing device 530. The distance measuring device 535 may be an infrared distance measuring device, an ultrasonic distance measuring device, a laser distance measuring device, etc., and the distance measuring device 535 may determine whether there is an obstacle in the moving direction of the manipulator 500, so as to perform a corresponding obstacle-shielding action, and the remote camera 536 may perform remote transmission on an on-site image, so as to perform a moving action and a fire extinguishing effect of the manipulator 500, and assist in fire extinguishing by a human.
In order to enable the field personnel to accurately position the power utilization information acquisition terminal 10 which finds the fault, the power utilization information acquisition terminal 10 further comprises an audible and visual alarm unit which is electrically connected with the computing unit.
Referring to fig. 8, a method for performing power outage early warning based on any one of the above power outage early warning systems according to an embodiment of the present invention:
s100: the power utilization information acquisition terminal acquires three-phase voltage and three-phase current of a distribution line in real time;
judging whether any one of the following power failure early warning conditions is met:
s201: the collected single-phase load current is greater than the starting current, the phase voltage is lower than 78% of the normal working voltage of the electric energy meter, the duration is greater than 1 minute, and the alarm device sends out power failure early warning alarm;
s202: each phase voltage is lower than the critical voltage of the electric energy meter, and the single-phase load current is smaller than the starting current, the alarm device sends out power failure early warning alarm;
s203: the single-phase load current is more than 5% of rated current, and each phase voltage is lower than the critical voltage of the electric energy meter, and the alarm device sends out power failure early warning alarm;
s204: the voltage of each phase is greater than the critical voltage of the electric energy meter, any one or two phases of three-phase current are less than the starting current, and the load current of other phase lines is greater than 5% of rated current, and the alarm device sends out power failure early warning alarm;
s300: and meeting any one of the power failure early warning conditions, and sending a power failure early warning alarm by the alarm device.
The power failure early warning system and the power failure early warning method provide a technical means for the power distribution system to take power failure preventive measures in advance, and improve inconvenience caused by power failure events.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (9)
1. The utility model provides a comprehensive integration management system in province, prefecture and county of electric wire netting company which characterized in that: the system comprises an engineering management system and a power failure early warning system;
the project management system comprises a provincial project management system, a prefecture project management system and a county project management system;
the provincial engineering management system, the prefecture engineering management system and the county engineering management system respectively comprise a research book compiling module, a responsibility auditing module, a leader auditing module, a provincial company responsibility auditing module, a provincial company leader auditing module, a plan issuing module, an engineering implementation module and a project acceptance module;
and data synchronization can be realized among corresponding modules in a provincial level project management system, a prefecture project management system and a county level project management system of the project management system.
2. The system of claim 1, wherein the system comprises: the method and the steps for implementing the data synchronization are,
the first step is as follows: the database synchronization of the cross-security large area based on the TCP protocol and the Redo log of the database; the system is used for detecting the update condition of the Redo log of the database in real time, when the local database has data update, a data synchronization request is triggered, the update data is packaged according to a specified format, the packaged data is packaged secondarily according to the specification of an isolating device and then is sent to a data receiving side of the isolating device, the Redo log is transmitted according to an MAL format, the data receiving side analyzes the packaged data and the Redo log in sequence, the validity of the data is judged, the database of the data receiving side is updated in time, and data synchronization is achieved;
the second step is that: according to the engineering project management requirements and the management process, connecting a local database, and storing process flow information through the database;
the third step: and completing data synchronization according to a database cross-region synchronization mechanism.
3. The system of claim 1, wherein the system comprises: the power failure early warning system comprises: the system comprises a master station device, a wireless communication network, a power utilization information acquisition terminal and an alarm device; wherein,
the master station equipment comprises an online monitoring client and a monitoring control center;
the electricity consumption information acquisition terminal comprises a main controller, a memory, an AD converter, an operation display panel, a wireless communication module, a data input interface and a data output interface; the AD converter of the electricity consumption information acquisition terminal is respectively and electrically coupled with the monitoring points of the public transformer, the special transformer and the on-column vacuum switch, and the data input interface and the data output interface of the electricity consumption information acquisition terminal are respectively and electrically coupled with the data output interface and the data input interface of the electric energy meter; the main controller performs polling collection on a public transformer, a special transformer, monitoring points of the vacuum switch on the column and the electric energy meter through a set time period, collected power line data and electric energy information are sent back to the memory in the form of data packets, and the wireless communication module uploads the information on the memory to the monitoring control center through the wireless communication network;
the on-line monitoring client calculates three-phase voltage, three-phase current, three-phase active power, three-phase reactive power, three-phase apparent power and three-phase power factor of the power line according to the collected data stored in the monitoring control center, compares the three-phase voltage, the three-phase current, the three-phase active power, the three-phase reactive power, the three-phase apparent power and the three-phase power factor with preset data, judges whether the power failure condition is met, and alarms through an alarm.
4. The system of claim 3, wherein the system comprises: the power utilization information acquisition terminal comprises a fire detection device, an infrared sensor for detecting the position of a fire source and a fixed-point self-extinguishing device;
the fire detection device includes: the device comprises a calculation unit, a smoke concentration sensor and a temperature sensor which are electrically connected with the calculation unit respectively;
the fixed point self-extinguishing device comprises: the dry powder fire extinguisher comprises a dry powder fire extinguisher and a control unit for automatically controlling the switch of the dry powder fire extinguisher, wherein the control unit is electrically connected with the computing power supply.
5. The system of claim 4, wherein the system comprises: the fixed-point self-extinguishing device also comprises a manipulator for controlling the position and the direction of a nozzle of the dry powder fire extinguisher, and an attitude calculation unit and an attitude control unit of the manipulator;
the mechanical arm comprises a through hole penetrating through the head end and the tail end of the mechanical arm, a spray pipe of the dry powder fire extinguisher is arranged in the through hole, and a nozzle of the spray pipe is fixed on the mechanical arm;
the mechanical arm is formed by connecting a plurality of secondary arms pairwise through movable joints, and the attitude control unit controls the movable joints to act according to the calculation result of the attitude calculation unit so as to control the attitude of the mechanical arm;
the movable joint comprises a first connecting portion and a second connecting portion which are connected through three cylinders, the cylinders are arranged in a triangular mode, and the length of each cylinder is controlled through adjustment of the length of each cylinder.
6. The system of claim 5, wherein the system comprises: and the manipulator is provided with a distance measuring device for preventing collision.
7. The system of claim 5, wherein the system comprises: the manipulator is provided with a remote camera.
8. The system of claim 4, wherein the system comprises: and the sound and light alarm unit is electrically connected with the computing unit.
9. The system of claim 3, wherein the system comprises: the method for performing power failure early warning by the power failure early warning system comprises the following steps,
the power utilization information acquisition terminal acquires three-phase voltage and three-phase current of a distribution line in real time and judges whether power failure early warning conditions are met or not;
when the collected single-phase load current is larger than the starting current, the phase voltage is lower than 78% of the normal working voltage of the electric energy meter, and the duration is longer than 1 minute, the alarm device sends out power failure early warning alarm;
when each phase voltage is lower than the critical voltage of the electric energy meter and the single-phase load current is smaller than the starting current, the alarm device sends out power failure early warning alarm;
when the single-phase load current is greater than 5% of rated current and each phase voltage is lower than the critical voltage of the electric energy meter, the alarm device sends out power failure early warning alarm;
when the voltage of each phase is greater than the critical voltage of the electric energy meter, any one or two phases of three-phase current are less than the starting current, and the load current of other phase lines is greater than 5% of rated current, the alarm device sends out power failure early warning alarm.
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| CN2016111655275 | 2016-12-16 | ||
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