CN112436609A - System and method for improving monitoring efficiency of power plant operation on duty - Google Patents

System and method for improving monitoring efficiency of power plant operation on duty Download PDF

Info

Publication number
CN112436609A
CN112436609A CN202011366445.3A CN202011366445A CN112436609A CN 112436609 A CN112436609 A CN 112436609A CN 202011366445 A CN202011366445 A CN 202011366445A CN 112436609 A CN112436609 A CN 112436609A
Authority
CN
China
Prior art keywords
picture
patrol
supervision
power plant
monitoring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011366445.3A
Other languages
Chinese (zh)
Inventor
张子龙
董兴顺
李丰羽
秦巍
刘宏源
王利研
姜成健
郭东楷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liaoning Pushihe Water Storage Co ltd
State Grid Corp of China SGCC
State Grid Xinyuan Co Ltd
Original Assignee
Liaoning Pushihe Water Storage Co ltd
State Grid Corp of China SGCC
State Grid Xinyuan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Liaoning Pushihe Water Storage Co ltd, State Grid Corp of China SGCC, State Grid Xinyuan Co Ltd filed Critical Liaoning Pushihe Water Storage Co ltd
Priority to CN202011366445.3A priority Critical patent/CN112436609A/en
Publication of CN112436609A publication Critical patent/CN112436609A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Testing And Monitoring For Control Systems (AREA)

Abstract

A system and a method for improving the efficiency of monitoring the operation of a power plant on duty comprise the following modules: a human-computer interaction picture and a background ladder diagram program; the method comprises the following steps: drawing a monitoring picture of a power plant monitoring system: drawing a supervisory disc navigation system picture and a supervisory disc navigation route map picture on an operation picture of a power plant monitoring system, and adding a patrol viewpoint button on a patrolled picture related to the system; ladder programming: and compiling the equipment state inspection logic of the factory public system and the unit equipment state inspection logic according to the requirements of the supervisory disk navigation system and the picture program calling requirements. The invention provides a novel supervision mode which can be stored according to fixed routes, fixed time, voice alarm and patrol records and can be checked regularly, the supervision quality on duty can be improved, the system can automatically perform voice alarm, supervision information cross does not exist among different classes, a manager can conveniently master the supervision work progress condition of an attendant regularly, the supervision work is standardized, streamlined and clear, and important guarantee is provided for improving the supervision quality.

Description

System and method for improving monitoring efficiency of power plant operation on duty
Technical Field
The invention belongs to the technical field of power systems, and particularly relates to a system and a method for improving the monitoring efficiency of power plant operation on duty, which are suitable for operation management departments such as a transformer substation and a power plant, can standardize and improve the monitoring efficiency of operators, and can help the managers to master the monitoring dynamics of the operators on duty.
Background
With the development of economic society, the requirements of modern society on safe and reliable power supply are higher and higher, and the operation of the monitoring panel on duty is the most common and important work in power plants and transformer substations, and plays a vital role in safe and stable operation of equipment. The current power plant operation on-duty supervision has the following problems: 1) a worker just contacting the monitoring disc cannot quickly master the key points of the monitoring disc; 2) due to the shift, the watch personnel cannot guarantee the monitoring efficiency for a long time; 3) the administrator cannot effectively control the monitoring disc dynamic and monitoring disc efficiency of the person on duty.
Disclosure of Invention
The present invention addresses the above-identified problems in the prior art and provides a system and method for improving the efficiency of monitoring the operation of a power plant on duty. By combining the technologies of ladder diagram program, flow logic, monitoring picture and the like, a novel monitoring disk navigation system which can store and regularly check according to fixed route, fixed time, voice alarm and patrol record is realized. The monitoring system can improve the monitoring efficiency of the operating personnel and help the management personnel to master the monitoring dynamic state of the on-duty personnel. The technical scheme adopted by the invention for solving the technical problems is as follows:
a system for improving the efficiency of monitoring the operation of a power plant on duty comprises the following modules: a human-computer interaction picture and a background ladder diagram program; the man-machine exchange picture comprises three components, wherein the first component is introduction of the supervisory control navigation system and brief introduction of a using method, the second component is a patrol route map of the supervisory control navigation system, and an attendant can carry out patrol inspection on the on-duty picture through route indication of the first component and is provided with patrol state feedback indication; the third part is a monitoring picture related to the tour route, and each picture is provided with a picture tour button.
And the background ladder diagram program links the man-machine interaction picture with the monitoring system data server to realize the logical composition of the route patrol condition.
A method for improving the efficiency of monitoring the operation of a power plant on duty comprises the following steps:
drawing a monitoring picture of a power plant monitoring system: drawing a supervisory disc navigation system picture and a supervisory disc navigation route map picture on an operation picture of a power plant monitoring system, and adding a patrol viewpoint button on a patrolled picture related to the system;
ladder programming: and compiling the equipment state inspection logic of the factory public system and the unit equipment state inspection logic according to the requirements of the supervisory disk navigation system and the picture program calling requirements.
In the drawing of the supervision picture of the power plant monitoring system, the supervision navigation system picture consists of supervision navigation function introduction and supervision navigation shift switching buttons, the function introduction is designed for guiding the on-duty personnel to better use the supervision navigation system, and the shift switching buttons can realize that the supervision information does not cross among different shifts.
In the process of drawing the supervision picture of the power plant monitoring system, the supervision route picture of the supervision navigation route is subjected to route sequencing through the well investigated and confirmed supervision picture patrol pictures to form a whole-plant public system patrol route and a unit patrol route, each patrol route corresponds to a state indicator lamp, and the patrol condition of the route is fed back.
In the process of drawing the supervision picture of the power plant monitoring system, the patrolled picture is added with a patrolling viewpoint button, after the patrolling is finished, a person on duty clicks the patrolling button to finish the patrolling check-in when the picture corresponds to the patrolled picture, and the patrolling record is reserved in the background of the monitoring system so that a manager can master the supervision of the supervision picture.
In the programming of the ladder diagram, the inspection logic of the equipment state of the whole plant public system is as follows: the method comprises the steps that the whole plant equipment is required to be subjected to patrol before and after work transfer of each shift, when a work transfer button is pressed down, if all specified picture patrol viewpoints are ON, a whole plant equipment operation state patrol finishing action is output, then specified picture patrol points are cleared, and meanwhile, the whole plant equipment operation state patrol finishing action is automatically reset after 60 s; if the shift register button is OFF, clearing all the intermediate signal points to finish the state inspection of the equipment in the whole plant, and the inspection indicator lamp is red.
In the programming of the ladder diagram, the state inspection logic of the unit equipment is as follows: the unit running state inspection should be carried out according to respective unit inspection routes every 40 minutes, after a shift-over button is pressed, if all specified picture inspection points are ON, the operation state inspection finishing action of unit equipment is output, then the specified picture inspection points are reset, and meanwhile, the operation state inspection finishing action of the unit equipment is automatically reset after 60 seconds; if the shift register button is OFF, clearing all intermediate signal points, and automatically executing voice alarm prompt when the shift register button acts simultaneously with the running state of the unit and no unit patrol viewpoint is pressed within 40 min.
The invention has the following advantages and beneficial technical effects:
the novel monitoring mode which can be stored and regularly checked according to fixed routes, fixed time, voice alarm and patrol records is combined through technologies such as ladder diagram programs, flow diagram logic, monitoring image display and the like. The following advantageous effects exist:
1) the method and the system can plan a correct monitoring route for the on-duty personnel and the on-duty students so as to find abnormal information of equipment in time and improve the monitoring quality of operation on-duty.
2) The system can automatically give an alarm by voice and prompt the watchman to carry out picture inspection when the supervision is not carried out according to the specified action within the specified time.
3) The invention takes the operating shift as a reference, and realizes the shift by the sign-in button, and the supervision information cross does not exist between different shifts.
4) After the patrol is performed according to the specified path pictures, patrol records can be automatically generated in the monitoring system and stored in the database, and the stay time of the watchman in each picture can be inquired, so that the manager can regularly master the supervision work progress condition of the watchman.
5) The invention can standardize, process and clarify the monitoring operation and provide important guarantee for improving the quality of the monitoring operation.
Drawings
In order to facilitate the understanding and practice of the present invention for those of ordinary skill in the art, the following detailed description of the present invention is provided in conjunction with the accompanying drawings and the detailed description, the following examples are provided to illustrate the present invention, but it should be understood that the scope of the present invention is not limited by the detailed description.
FIG. 1 is a diagram of a supervisory disk navigation system;
FIG. 2 is a view of a supervisory disk navigation system;
FIG. 3 is a view of a route screen of the supervisory disk navigation system;
FIG. 4 is an exemplary patrolling button screen view of a patrolled screen;
FIG. 5 is a logic ladder diagram of a state patrol for a utility system throughout a plant;
FIG. 6 is a logic ladder diagram of a system state patrol of a unit operation device;
FIG. 7 is a ladder diagram of the navigation system view linking logic.
Detailed Description
The invention relates to a system and a method for improving the efficiency of monitoring a power plant on duty, which can be integrated by technologies such as a ladder diagram program, flow diagram logic, monitoring picture monitoring and the like, and is a novel monitoring mode which can be stored and regularly checked according to fixed routes, fixed time, voice alarm and patrol records and can be compiled by combining the technologies such as the ladder diagram program, the flow diagram logic, monitoring picture display and the like. The specific operation mode is as follows:
example 1
As shown in fig. 2, the shift-changing button is clicked, after the shift-changing button is displayed in red, each picture inspection tour is performed according to the tour route of the state of the plant public equipment in fig. 2, and the tour button is clicked when all the tour routes are finished and the tour buttons are clicked, which represents that the state of the plant public equipment is completely navigated.
For the running unit, the monitoring system broadcasts a voice prompt every 40 minutes, and the monitoring system displays a message that the number unit is running and a picture inspection is required. When the state patrol of the unit operation equipment is performed, the patrol is performed as the state patrol route of the unit equipment in fig. 2.
Example 2
The management personnel can inquire and check the supervision record report of the operation on-duty personnel regularly, and confirm the supervision quality of the personnel in a corresponding shift, specifically comprising the number of route tours, the stay time of pictures and the like, so that the management personnel can find the problems and correct the problems in time.
Example 3
As shown in fig. 3 and 5, according to the requirement of the supervisory disk navigation system, a whole plant equipment patrol is required to be performed before and after each shift, therefore, after the shift connection button DUMMY _ DI [20] is pressed down, if all specified 13 picture patrol viewpoints are ON, the complete plant equipment operation state patrol is output, DUMMY _ DI [18], after the DUMMY _ DI [18] acts, the patrol points of 13 pictures are cleared immediately, and at the same time, the dump _ DI [18] acts for 60s, the automatic reset is performed, if the shift connection button is OFF, all intermediate signal points are cleared, namely, the complete plant equipment state patrol is completed, and the patrol indicator light is red.
Example 4
As shown in fig. 6, according to the requirements of the supervisory disk navigation system, the unit operation state patrol is performed according to respective unit patrol routes every 40 minutes. After the shift-receiving button DUMMY _ DI [20] is pressed down as shown in FIG. 5, if the specified 6 picture inspection points are all ON, the unit equipment operation state inspection completion DUMMY _ DI [13] is output, the inspection points of the 6 pictures are cleared immediately after the action of the DUMMY _ DI [13], and the inspection points are automatically reset after the action of the DUMMY _ DI [13] is 60s, if the shift-receiving button is OFF, all intermediate signal points are cleared, and when the shift-receiving button and the unit operation state are simultaneously operated, and no unit inspection point is pressed down within 40min, the voice alarm prompt is automatically executed.
Example 5
As shown in fig. 7, fig. 7 is a linked logic ladder diagram of the monitor navigation system screen.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (8)

1. The utility model provides a system for improve power plant operation on duty supervision dish efficiency which characterized in that includes following module: a human-computer interaction picture and a background ladder diagram program; the man-machine exchange picture comprises three components, wherein the first component is introduction of the supervisory control navigation system and brief introduction of a using method, the second component is a patrol route map of the supervisory control navigation system, and an attendant can carry out patrol inspection on the on-duty picture through route indication of the first component and is provided with patrol state feedback indication; the third part is a monitoring picture related to the tour route, and each picture is provided with a picture tour button.
2. The system for improving the efficiency of monitoring the operation of the power plant on duty according to claim 1, wherein the background ladder diagram program links the human-computer interaction picture with the data server of the monitoring system to realize the logical composition of the route patrol condition.
3. A method for improving the efficiency of monitoring the operation of a power plant on duty is characterized by comprising the following steps:
drawing a monitoring picture of a power plant monitoring system: drawing a supervisory disc navigation system picture and a supervisory disc navigation route map picture on an operation picture of a power plant monitoring system, and adding a patrol viewpoint button on a patrolled picture related to the system;
ladder programming: and compiling the equipment state inspection logic of the factory public system and the unit equipment state inspection logic according to the requirements of the supervisory disk navigation system and the picture program calling requirements.
4. The method as claimed in claim 3, wherein in the drawing of the supervisory control screen of the power plant monitoring system, the supervisory control navigation screen is composed of a supervisory control navigation function introduction and a supervisory control navigation shift switch button, the function introduction is designed to guide the operator to better use the supervisory control navigation system, and the shift switch button can realize no crossover of supervisory control information between different shifts.
5. The method according to claim 3, wherein in the drawing of the supervision picture of the power plant monitoring system, the supervision route map picture of the supervision system is obtained by performing route sorting on the patrol maps of the monitored pictures determined by investigation to form patrol routes of the whole plant public system and patrol routes of the units, and each patrol route corresponds to a status indicator lamp to feed back the patrol condition of the route.
6. The method according to claim 3, wherein during the drawing of the supervision picture of the power plant monitoring system, a patrol viewpoint button is added to the patrolled picture, after the patrol is completed on the corresponding picture, an attendant clicks the patrol button to complete the patrol check-in, and the patrol record is kept in the background of the monitoring system so that an administrator can master the supervision of the supervision state.
7. The method of claim 3, wherein in the programming of the ladder diagram, the logic of patrolling the status of the utility system equipment of the whole plant is as follows: the method comprises the steps that the whole plant equipment is required to be subjected to patrol before and after work transfer of each shift, when a work transfer button is pressed down, if all specified picture patrol viewpoints are ON, a whole plant equipment operation state patrol finishing action is output, then specified picture patrol points are cleared, and meanwhile, the whole plant equipment operation state patrol finishing action is automatically reset after 60 s; if the shift register button is OFF, clearing all the intermediate signal points to finish the state inspection of the equipment in the whole plant, and the inspection indicator lamp is red.
8. The system and method according to claim 3, wherein in the programming of the ladder diagram, the logic of inspecting the status of the plant unit is as follows: the unit running state inspection should be carried out according to respective unit inspection routes every 40 minutes, after a shift-over button is pressed, if all specified picture inspection points are ON, the operation state inspection finishing action of unit equipment is output, then the specified picture inspection points are reset, and meanwhile, the operation state inspection finishing action of the unit equipment is automatically reset after 60 seconds; if the shift register button is OFF, clearing all intermediate signal points, and automatically executing voice alarm prompt when the shift register button acts simultaneously with the running state of the unit and no unit patrol viewpoint is pressed within 40 min.
CN202011366445.3A 2020-11-29 2020-11-29 System and method for improving monitoring efficiency of power plant operation on duty Pending CN112436609A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011366445.3A CN112436609A (en) 2020-11-29 2020-11-29 System and method for improving monitoring efficiency of power plant operation on duty

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011366445.3A CN112436609A (en) 2020-11-29 2020-11-29 System and method for improving monitoring efficiency of power plant operation on duty

Publications (1)

Publication Number Publication Date
CN112436609A true CN112436609A (en) 2021-03-02

Family

ID=74698976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011366445.3A Pending CN112436609A (en) 2020-11-29 2020-11-29 System and method for improving monitoring efficiency of power plant operation on duty

Country Status (1)

Country Link
CN (1) CN112436609A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115761927A (en) * 2022-10-21 2023-03-07 中广核工程有限公司 Intelligent nuclear power plant patrol method and system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106451790A (en) * 2016-11-21 2017-02-22 北京殷图网联科技股份有限公司 Remote intelligent inspection system for transformer substations and implementation method of inspection system
CN107069963A (en) * 2017-04-13 2017-08-18 华能澜沧江水电股份有限公司小湾水电厂 A kind of unattended hydropower plant intelligently supervises disk method and system
CN206619019U (en) * 2017-03-30 2017-11-07 京能(锡林郭勒)发电有限公司 A kind of Medium voltage switch or circuit breaker DCS remote visibles stop power transmission and diagnostic system
CN110531690A (en) * 2019-08-27 2019-12-03 南瑞集团有限公司 A kind of long-range fire-fighting centralized monitoring system of unattended substation
CN110557619A (en) * 2019-09-24 2019-12-10 智洋创新科技股份有限公司 video control method for intelligent patrol of transformer substation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106451790A (en) * 2016-11-21 2017-02-22 北京殷图网联科技股份有限公司 Remote intelligent inspection system for transformer substations and implementation method of inspection system
CN206619019U (en) * 2017-03-30 2017-11-07 京能(锡林郭勒)发电有限公司 A kind of Medium voltage switch or circuit breaker DCS remote visibles stop power transmission and diagnostic system
CN107069963A (en) * 2017-04-13 2017-08-18 华能澜沧江水电股份有限公司小湾水电厂 A kind of unattended hydropower plant intelligently supervises disk method and system
CN110531690A (en) * 2019-08-27 2019-12-03 南瑞集团有限公司 A kind of long-range fire-fighting centralized monitoring system of unattended substation
CN110557619A (en) * 2019-09-24 2019-12-10 智洋创新科技股份有限公司 video control method for intelligent patrol of transformer substation

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
于国强: "单元机组运行", 31 August 2006, 中国电力出版社, pages: 248 - 256 *
俞鸿飞: "水电机组监控系统运行故障处理", 浙江电力, no. 06, 28 December 1999 (1999-12-28), pages 55 - 57 *
戴曙光: "水轮发电机组运行与维护", 31 March 2019, 河海大学出版社, pages: 301 - 303 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115761927A (en) * 2022-10-21 2023-03-07 中广核工程有限公司 Intelligent nuclear power plant patrol method and system

Similar Documents

Publication Publication Date Title
CN109242118A (en) A kind of visual integrated management system of intelligence O&M
CN102880115B (en) A kind of numerically controlled machine remote cooperative diagnosis system based on Internet of Things
CN108681830B (en) Substation patrol intelligent operation dynamic command method and system
CN109878760B (en) Universal aviation aircraft fault remote assistance platform and repairing method
CN109670673A (en) Strip mine production management and control system
CN108267670B (en) Distribution network fault study and judgment early warning system and implementation method thereof
CN114492870A (en) Fault processing method, device and system for rail transit signal equipment
CN112487119B (en) Power failure early warning signal verification method and system
CN104966140B (en) The mobile engineer station of power grid work compound
CN102968689A (en) Intelligent monitoring method for remote control of power transformation overhaul work
CN110580553A (en) Unmanned repair analysis and order distribution method based on GIS map
CN109117526A (en) One kind being suitable for mechanical system maintenance of equipment and guides data record and analysis system
CN116957540A (en) City level wisdom illumination fortune dimension management system
CN112436609A (en) System and method for improving monitoring efficiency of power plant operation on duty
CN113361970A (en) Virtual dispatcher system based on intelligent power dispatching engine and dispatching method
CN110889514A (en) Air traffic control station equipment emergency repair remote support system and method
CN107991965A (en) Standardization electricity business failure emergency command management method based on intellectual monitoring
CN112950906A (en) Intelligent operation staring and controlling visual management system
CN212990152U (en) Agricultural sewage management system
CN116703121A (en) Intelligent management system for river sewage outlet
CN110794837A (en) Intelligent inspection equipment system based on robot
CN115347674A (en) Distribution network virtual production command system and method
CN113472068A (en) Island microgrid remote operation and maintenance method, system and storage medium
CN115145661A (en) Method for refreshing rail transit station monitoring display interface and monitoring equipment
NL2030311B1 (en) Cloud platform of train service training system based on decentralized self-discipline and centralized traffic control system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination