WO2018137145A1 - 数据同步方法及装置 - Google Patents

数据同步方法及装置 Download PDF

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Publication number
WO2018137145A1
WO2018137145A1 PCT/CN2017/072493 CN2017072493W WO2018137145A1 WO 2018137145 A1 WO2018137145 A1 WO 2018137145A1 CN 2017072493 W CN2017072493 W CN 2017072493W WO 2018137145 A1 WO2018137145 A1 WO 2018137145A1
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WIPO (PCT)
Prior art keywords
variable
control station
data
faulty
synchronized
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PCT/CN2017/072493
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English (en)
French (fr)
Inventor
江国进
孙娜
石桂连
朱丽玲
谢逸钦
李刚
刘松
左新
齐敏
Original Assignee
北京广利核系统工程有限公司
中国广核集团有限公司
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Application filed by 北京广利核系统工程有限公司, 中国广核集团有限公司 filed Critical 北京广利核系统工程有限公司
Priority to HUE17893759A priority Critical patent/HUE057909T2/hu
Priority to PCT/CN2017/072493 priority patent/WO2018137145A1/zh
Priority to PL17893759T priority patent/PL3525052T3/pl
Priority to ES17893759T priority patent/ES2904855T3/es
Priority to EP17893759.5A priority patent/EP3525052B1/en
Publication of WO2018137145A1 publication Critical patent/WO2018137145A1/zh

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
    • G05B19/4184—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by fault tolerance, reliability of production system
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/001—Computer implemented control
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/10—Plc systems
    • G05B2219/16—Plc to applications
    • G05B2219/161—Nuclear plant
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • the present invention relates to the field of data processing technologies, and in particular, to a data synchronization method and apparatus.
  • DCS Distributed Control System
  • the nuclear power plant protection system is one of the most important systems. It is realized by a distributed control system and is a powerful guarantee for stable, safe and reliable operation of the reactor.
  • the protection system can be implemented using analog technology or using digital technology.
  • the data synchronization problem between the control stations is usually solved in the following two ways. First, manually adjust the device to achieve the purpose of data synchronization; second, when the data is inconsistent, an alarm will be issued. When one of the control stations is restarted, the communication between the two control stations is used to automatically synchronize the data of the other control station. come.
  • the second method usually has a status register between two control stations, and includes a voting part, each control station is connected in parallel to the voting part, and the data path is partially connected through the status register, and the voting part is respectively The corresponding status register copy path portions on each control station are connected.
  • the voting device in the system locates the failed control station, and then notifies the external status register to update the failed control station through local dynamic reconstruction technology, and the updated control station can again Join the system to work.
  • the above two methods have the following deficiencies: First, the first method is complicated in operation and large in error, and at the same time brings risks to the execution of the system security function; secondly, the second method needs to restart the control station, thereby affecting the system. Availability. In addition, because of the communication means between the control stations, it has a certain impact on the operational reliability of the system.
  • a data synchronization method includes: after any of the control stations recovering from a fault, performing an output blocking of a faulty control station in the distributed control system of the nuclear power plant, so that the faulty control station is in a bypass state; and controlling the fault Comparing the variables of the station with the variables of the selected unfaulted control station, determining the data to be synchronized; establishing a data transmission channel with the failed control station, and based on the established data transmission channel, Synchronized data for data synchronization.
  • the comparing the variable of the failed control station with the variable of the selected non-faulty control station, and determining the data to be synchronized includes:
  • the data to be synchronized is determined by comparing a first variable online value of each of the at least one variable of the faulty control station and a second variable online value of a corresponding variable of the faulty control station.
  • the obtaining the first variable online value of the at least one variable of the faulty control station and the second variable online value of the corresponding variable of the faulty control station comprises:
  • the comparison variable list Obtaining, according to the comparison variable list, a first variable online value of each variable of the unfaulted control station in the comparison variable list of the variable to be compared, and a corresponding variable of the control station of the fault in the comparison variable list
  • the second variable is an online value.
  • the data transmission channel established between the control station and the engineering station based on the fault, after data synchronization of the data to be synchronized further includes:
  • the data transmission channel is disconnected and the bypass state of the failed control station is released.
  • the method further includes:
  • variable information comprises at least one of the following: a data name, a data type, and an online value.
  • the method before bypassing the faulty control station in the distributed control system of the nuclear power plant after the fault recovery of any of the control stations, the method further includes:
  • Variable definition is performed on each of the plurality of control stations that need to be synchronized.
  • the data to be synchronized includes at least one of the following logically transmitted data: an RS flip-flop, a Z flip-flop, a self-holding logic, and a delay.
  • a data synchronizing apparatus includes: a control station blocking module, configured to block an output of the faulty control station in the distributed control system of the nuclear power plant after the fault recovery of any of the control stations, so that the faulty control station is adjacent to a variable comparison module for comparing a variable of the failed control station with a variable of the selected unfaulted control station to determine data to be synchronized; a channel establishment and data synchronization module for The faulty control station establishes a data transmission channel, and performs data synchronization on the data to be synchronized based on the established data transmission channel.
  • variable comparison module comprises:
  • variable online value obtaining unit configured to acquire a first variable online value of at least one variable of the unfaulted control station and a second variable online value of a corresponding variable of the faulty control station;
  • a synchronization data determining unit configured to compare the first variable online value of each of the at least one variable of the non-faulty control station and the second variable online value of a corresponding variable of the faulty control station, The data to be synchronized.
  • variable online value obtaining unit is configured to acquire, according to the comparison variable list, a first variable online value of each variable of the unfaulted control station in the comparison variable list of the variable that needs to be compared, and the comparison variable The second variable online value of the corresponding variable of the faulty control station in the list.
  • the apparatus further comprises: a channel disconnecting and bypass releasing module for disconnecting the data transmission channel and releasing a bypass state of the faulty control station.
  • the device further includes: a list establishing module, configured to acquire variable information of each of the plurality of control stations, and establish the comparison variable list according to the obtained variable information.
  • a list establishing module configured to acquire variable information of each of the plurality of control stations, and establish the comparison variable list according to the obtained variable information.
  • variable information comprises at least one of the following: a data name, a data type, and an online value.
  • the apparatus further includes: a variable definition module, configured to perform variable definition on each of the plurality of control stations that need to be synchronized.
  • a variable definition module configured to perform variable definition on each of the plurality of control stations that need to be synchronized.
  • the data to be synchronized includes at least one of the following logically transmitted data: an RS flip-flop, a Z flip-flop, a self-holding logic, and a delay.
  • Data synchronization method and apparatus at any control station After the fault is recovered, the faulty control station is blocked by the output so that the faulty control station is in the bypass state; the variables of the faulty control station are further compared with the variables of the selected unfaulted control station to determine that the fault is to be synchronized. Data; based on the data transmission channel established with the failed control station, data synchronization of the data to be synchronized. Thereby, the control station which accurately and reliably synchronizes the data to the fault is realized, the operation is simple, and the safety and availability of the distributed control system are ensured.
  • FIG. 1 is a flow chart showing a data synchronization method according to Embodiment 1 of the present invention.
  • FIG. 2 is a flow chart showing a data synchronization method according to Embodiment 2 of the present invention.
  • FIG. 3 is a logic block diagram showing a data synchronizing apparatus according to a third embodiment of the present invention.
  • FIG. 4 is a logic block diagram showing a data synchronizing apparatus according to Embodiment 4 of the present invention.
  • the data synchronization method is for a distributed control system of a nuclear power plant, and the distributed control system of the nuclear power plant includes a plurality of control stations configured to be parallel redundant.
  • step S110 after any control station fails to recover, the control station of the fault in the distributed control system of the nuclear power plant is blocked by the output so that the faulty control station is in the bypass state.
  • the control station bypassing the fault that is, the output of the entire control station is blocked, that is, no output is performed.
  • step S120 the variable of the failed control station is changed with the selected unfaulted control station.
  • the quantities are compared to determine the data to be synchronized.
  • the process of establishing a comparison variable list in the factory is generally performed by performing variable monitoring on two parallel redundant control stations (ie, a faulty control station and a non-faulty control station) according to the established comparison variable list.
  • the variable alignment results provide a data foundation for subsequent data synchronization steps.
  • step S130 a data transmission channel is established with the failed control station, and data to be synchronized is synchronized based on the established data transmission channel.
  • the maintenance engineer station simultaneously connects the unfaulted control station through the safety bus, the data transmission station and the gateway, so as to obtain the data of the variables of the unfaulted control station and synchronize to the failed control station.
  • connection between the maintenance engineer station and the control station can be performed by using other communication media or a communication protocol according to the characteristics of the platform, which is not specifically limited in this embodiment.
  • the data synchronization method provided by the embodiment of the present invention, after the fault recovery of any control station, the output of the faulty control station is blocked, so that the faulty control station is in the bypass state; further selecting the variable of the faulty control station and selecting The variables of the unfaulted control station are compared to determine the data to be synchronized; based on the data transmission channel established with the failed control station, the data to be synchronized is synchronized.
  • the control station which accurately and reliably synchronizes the data to the fault is realized, the operation is simple, and the safety and availability of the distributed control system are ensured.
  • communication means are not required between the control stations, which further improves the reliability of the operation of the distributed control system.
  • FIG. 2 is a flow chart showing a data synchronization method according to Embodiment 2 of the present invention, which may be regarded as still another specific implementation of FIG. 1. The method can be performed in a data synchronization device as shown in FIG.
  • step S210 after any control station fails to recover, the control station of the fault in the distributed control system of the nuclear power plant is blocked by the output so that the faulty control station is in the bypass state.
  • the content of the steps in the step S210 is the same as the content of the step S110 in the first embodiment, and details are not described herein again.
  • the data synchronization method before the step S210, further includes: Variable definition is performed on each of the plurality of control stations that need to be synchronized.
  • the data to be synchronized includes at least one of the following logically transmitted data: an RS trigger, a Z flip-flop, a self-holding logic, and a delay, but is not limited thereto.
  • the variable definition means to define the configuration of the data to be synchronized and monitored in the control station, that is, to apply the logic configuration to the control station.
  • the data that needs to be synchronized and monitored is the data running in the control station, ie the data at the input and output of the software logic (such as the RS trigger described above) running in the control station.
  • the application software logic in the control station is used to implement the control or protection functions of the nuclear power plant.
  • the data to be monitored is the data of the output of the RS trigger, the Z flip-flop, the self-holding or the delay logic.
  • the purpose of the monitoring is to determine whether the two control stations are consistent. If they are inconsistent, the data synchronization operation is required.
  • the data to be synchronized is the input end of the above logic, and the method of synchronizing (such as forcing means, ie, assigning) the input end achieves the purpose of consistent output data.
  • the R and S ends of the RS flip-flop are ORed with the configuration definition points IN1 and IN2 respectively.
  • the output results of the two control stations are read and compared. If they are inconsistent, synchronization is required; again, depending on the output value of the unfaulted control station, the input point IN1 or IN2 of the control station forcing the fault is forced to assign values to IN1 and IN2 so that the outputs of the two control stations are identical. For example, assign 0 or 1 to IN1 and IN2.
  • the specific mandatory value can be implemented by the configuration file of the redundant synchronization tool according to the output of the unfaulted control station. Finally, the forcing of the failed control station is released.
  • a first variable online value of at least one variable of the unfaulted control station and a second variable online value of the corresponding variable of the failed control station are acquired.
  • step S220 may include: acquiring, according to the comparison variable list, the first variable online value of each variable of the control station that is not faulty in the comparison variable list of the variable that needs to be compared, and the failure in the comparison variable list The second variable online value of the corresponding variable of the control station.
  • the process of establishing the above list of comparison variables is usually done in the factory.
  • the data synchronization method may further include: acquiring variable information of each of the plurality of control stations, and establishing a comparison variable list according to the obtained variable information.
  • variable information may include, but is not limited to, at least one of the following: a data name, a data type, and an online value.
  • the data to be synchronized is determined by comparing the first variable online value of each at least one variable of the non-faulty control station with the second variable online value of the corresponding variable of the failed control station.
  • step S240 a data transmission channel is established with the failed control station, and data to be synchronized is synchronized based on the established data transmission channel.
  • step S240 The content of the steps in the step S240 is the same as the content of the step S130 in the first embodiment, and details are not described herein again.
  • step S250 the data transmission channel is disconnected, and the bypass state of the failed control station is released.
  • the failed control station is the target station and the non-faulty control station is the reference station.
  • the target station is in communication with the maintenance engineer station, and the maintenance engineer station is equipped with a redundant synchronization tool.
  • the workflow of the redundant synchronization tool is to execute the method flow of the embodiment.
  • the on-site maintenance engineer logs in, enters the project file path, user name and password, and parses the project file after searching for the user permission information in the database.
  • the system running on the maintenance engineer station will return to all control stations.
  • the field maintenance engineer selects the reference station and the target station.
  • the system loads the variable information of the reference station and the target station, and displays the online value of the variable on the interface.
  • the variables to be compared are selected from the reference station and the target station to establish a comparison variable list.
  • Table 1 below is a comparison variable list.
  • the variables in the comparison variable list are the data to be monitored (that is, the data at the output of the logic), and each variable will have a name.
  • HZRIS099MD The on-site maintenance engineer can click the “Start Monitoring” button on the system interface of the maintenance engineer station. When both control stations enter the monitoring state at the same time, the online values of the variables to be compared in the comparison variable list are displayed. At this point, click on the “Data Sync Button” and follow the logic configured in the algorithm block configuration file to synchronize the inconsistencies in the comparison results until all inconsistencies are synchronized. If you click the "Stop Monitoring” button, both the reference station and the target station end communication with the redundant synchronization tool.
  • variable online value of the unfaulted control station and the variable online value of the corresponding variable of the faulty control station are obtained, thereby accurately determining the data to be synchronized;
  • the data transmission channel is disconnected after the data is synchronized, and the bypass state of the failed control station is released, thereby ensuring that the failed control station resumes normal operation;
  • the data transmission channel is only established with the faulty control station, and is not directly connected to the unfaulted control station, thereby ensuring the safe operation of the control station.
  • FIG. 3 is a logic block diagram showing a data synchronizing apparatus according to a third embodiment of the present invention. It can be used to execute the data synchronization method flow as described in the first embodiment.
  • the data synchronization device is used for a distributed control system of a nuclear power plant, and the distributed control system of the nuclear power plant includes a plurality of control stations configured to be parallel redundant.
  • the data synchronization device includes: a control station blocking module 310, and a variable comparison Module 320 and channel setup and data synchronization module 330.
  • the control station blocking module 310 is configured to block the output of the faulty control station in the distributed control system of the nuclear power plant after the fault recovery of any control station, so that the faulty control station is in the bypass state.
  • the variable comparison module 320 is configured to compare the variables of the failed control station with the variables of the selected non-faulty control station to determine the data to be synchronized.
  • the channel establishment and data synchronization module 330 is configured to establish a data transmission channel with the faulty control station, and perform data synchronization on the data to be synchronized based on the established data transmission channel.
  • the data synchronization device performs the output blocking of the faulty control station after the fault recovery of any control station, so that the faulty control station is in the bypass state; further selecting the variable of the faulty control station and selecting The variables of the unfaulted control station are compared to determine the data to be synchronized; based on the data transmission channel established with the failed control station, the data to be synchronized is synchronized.
  • the control station which accurately and reliably synchronizes the data to the fault is realized, the operation is simple, and the safety and availability of the distributed control system are ensured.
  • communication means are not required between the control stations, which further improves the reliability of the operation of the distributed control system.
  • FIG. 4 is a logic block diagram showing a data synchronizing apparatus according to Embodiment 4 of the present invention. It can be used to execute the data synchronization method flow as described in the second embodiment.
  • variable comparison module 320 can include:
  • the variable online value obtaining unit 3201 is configured to acquire a first variable online value of at least one variable of the unfaulted control station and a second variable online value of the corresponding variable of the failed control station.
  • the synchronization data determining unit 3202 is configured to determine the data to be synchronized by comparing the first variable online value of each at least one variable of the non-faulty control station and the second variable online value of the corresponding variable of the failed control station.
  • the variable online value obtaining unit 3201 may be specifically configured to acquire, according to the comparison variable list, the first variable online value of each variable of the control station that is not faulty in the comparison variable list of the variable that needs to be compared, and the fault in the comparison variable list.
  • the second variable online value of the corresponding variable of the control station may be specifically configured to acquire, according to the comparison variable list, the first variable online value of each variable of the control station that is not faulty in the comparison variable list of the variable that needs to be compared, and the fault in the comparison variable list.
  • the second variable online value of the corresponding variable of the control station may be specifically configured to acquire, according to the comparison variable list, the first variable online value of each variable of the control station that is not faulty in the comparison variable list of the variable that needs to be compared, and the fault in the comparison variable list.
  • the data synchronization device may further include: a channel disconnection and bypass release module 340 for disconnecting the data transmission channel and releasing the bypass state of the failed control station.
  • the data synchronization device further includes: a list establishing module (not shown) for acquiring variable information of each of the plurality of control stations, and establishing a comparison variable list according to the obtained variable information.
  • a list establishing module (not shown) for acquiring variable information of each of the plurality of control stations, and establishing a comparison variable list according to the obtained variable information.
  • variable information may include, but is not limited to, at least one of the following: a data name, a data type, and an online value.
  • the data synchronization device further includes: a variable definition module (not shown) for performing variable definition on each of the plurality of control stations to be synchronized.
  • the data to be synchronized may include at least one of the following logically transmitted data: RS triggering , Z flip-flops, self-holding logic and delays, but are not limited to this.
  • the data synchronization apparatus has the following technical effects on the basis of the foregoing embodiments: First, by establishing a comparison variable list, and acquiring the online value of the variable of the unfaulted control station and the fault according to the comparison variable list. The variable value of the corresponding variable of the control station is online, thereby accurately determining the data to be synchronized; secondly, in the present embodiment, the data transmission channel is disconnected after the data is synchronized, and the bypass of the failed control station is eliminated. The state ensures that the failed control station resumes normal operation; thirdly, by defining variables for each of the plurality of control stations to be synchronized before data synchronization, providing a technical basis for subsequent data synchronization steps.
  • the above method according to the present invention can be implemented in hardware, firmware, or as software or computer code that can be stored in a recording medium such as a CD ROM, a RAM, a floppy disk, a hard disk, or a magneto-optical disk, or can be downloaded through a network.
  • a recording medium such as a CD ROM, a RAM, a floppy disk, a hard disk, or a magneto-optical disk, or can be downloaded through a network.
  • the computer code originally stored in a remote recording medium or non-transitory machine readable medium and to be stored in a local recording medium, whereby the methods described herein can be stored using a general purpose computer, a dedicated processor, or programmable or dedicated Such software processing on a recording medium of hardware such as an ASIC or an FPGA.
  • a computer, processor, microprocessor controller or programmable hardware includes storage components (eg, RAM, ROM, flash memory, etc.) that can store or receive software or computer code, when the software or computer code is The processing methods described herein are implemented when the processor or hardware is accessed and executed. Moreover, when a general purpose computer accesses code for implementing the processing shown herein, the execution of the code converts the general purpose computer into a special purpose computer for performing the processing shown herein.

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Abstract

本发明实施例提供了一种数据同步方法及装置。所述方法包括：在任一所述控制站故障恢复后，将所述核电站的分布式控制系统中故障的控制站进行输出闭锁，以使所述故障的控制站处于旁通状态；将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；与所述故障的控制站建立数据传输通道，并基于建立的所述数据传输通道，对所述待同步的数据进行数据同步。本发明实施例中，实现了准确、可靠地将数据同步至故障的控制站，操作简单，同时保证了分布式控制系统的安全性和可用性。

Description

数据同步方法及装置 技术领域
本发明涉及数据处理技术领域，尤其涉及一种数据同步方法及装置。
背景技术
分布式控制系统(Distributed Control System,DCS)是一种集控制技术、计算机技术、通信技术、网络技术于一体的新型控制系统。其用于分散控制和集中管理，具体是复杂的工业过程的控制任务分散到若干个控制站上完成。核电站的保护系统是最重要系统之一，采用分布式控制系统实现，是反应堆稳定、安全可靠运行的有力保障。保护系统可利用模拟技术或者利用数字化技术实现。
当两个控制站出现数据不一致的情况时，通常通过以下两种方式解决控制站间的数据同步问题。一是手动对设备进行调节，达到数据同步的目的；二是数据不一致时会进行报警，在对其中一个控制站重启时，利用两个控制站间的通信手段自动地将另一控制站数据同步过来。
第二种方法通常是在两个控制站之间设置有状态寄存器，并包含有表决器部分，各个控制站并行连接到表决器部分，还通过状态寄存器复制数据通路部分连接，表决器部分分别与各个控制站上的对应的状态寄存器复制通路部分连接。当控制站发生故障后，系统中的表决器对发生故障的控制站进行定位，然后通知外接的状态寄存器对发生故障的控制站通过局部动态重构技术进行更新，更新后的控制站才可以再次加入系统中进行工作。
然而，上述两种方式具有以下不足之处：首先，第一种方式操作复杂、误差大，同时会对系统安全功能的执行带来风险；其次，第二种方式需要重启控制站，从而影响系统的可用性。此外，由于控制站间具有通信手段，因此对系统运行可靠性有一定的影响。
发明内容
本发明的目的在于，提供一种数据同步方法及装置，以实现准确、可靠地将数据同步至故障的控制站，操作简单，同时保证了分布式控制 系统的安全性和可用性。
根据本发明的一方面，提供一种数据同步方法。所述方法包括：在任一所述控制站故障恢复后，将所述核电站的分布式控制系统中故障的控制站进行输出闭锁，以使所述故障的控制站处于旁通状态；将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；与所述故障的控制站建立数据传输通道，并基于建立的所述数据传输通道，对所述待同步的数据进行数据同步。
优选地，所述将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据包括：
获取所述未故障的控制站的至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值；
通过将所述未故障的控制站的各个所述至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值进行比对，确定所述待同步的数据。
优选地，所述获取所述未故障的控制站的至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值包括：
根据对比变量列表获取针对需要进行比对的变量的对比变量列表中所述未故障的控制站的各变量的第一变量在线值以及所述对比变量列表中所述故障的控制站的相应变量的第二变量在线值。
优选地，在所述基于所述故障的控制站与工程师站之间建立的数据传输通道，对所述待同步的数据进行数据同步之后，还包括：
断开所述数据传输通道，并且解除所述故障的控制站所处的旁通状态。
优选地，所述方法还包括：
获取所述多个控制站各自的变量信息，并根据获取到的变量信息建立所述对比变量列表。
优选地，所述变量信息包括以下至少之一：数据名称、数据类型和在线值。
优选地，在所述在任一所述控制站故障恢复后，将核电站的分布式控制系统中故障的控制站旁通之前，还包括：
对所述多个控制站各自的需同步的数据进行变量定义。
优选地，所述需同步的数据包括以下至少一种逻辑传输的数据：RS触发器、Z触发器、自保持逻辑和延时器。
根据本发明的另一方面，提供一种数据同步装置。所述装置包括：控制站闭锁模块，用于在任一所述控制站故障恢复后，将所述核电站的分布式控制系统中故障的控制站进行输出闭锁，以使所述故障的控制站处于旁通状态；变量比对模块，用于将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；通道建立及数据同步模块，用于与所述故障的控制站建立数据传输通道，并基于建立的所述数据传输通道，对所述待同步的数据进行数据同步。
优选地，所述变量比对模块包括：
变量在线值获取单元，用于获取所述未故障的控制站的至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值；
同步数据确定单元，用于通过将所述未故障的控制站的各个所述至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值进行比对，确定所述待同步的数据。
优选地，所述变量在线值获取单元用于根据对比变量列表获取针对需要进行比对的变量的对比变量列表中所述未故障的控制站的各变量的第一变量在线值以及所述对比变量列表中所述故障的控制站的相应变量的第二变量在线值。
优选地，所述装置还包括：通道断开及旁通解除模块，用于断开所述数据传输通道，并且解除所述故障的控制站所处的旁通状态。
优选地，所述装置还包括：列表建立模块，用于获取所述多个控制站各自的变量信息，并根据获取到的变量信息建立所述对比变量列表。
优选地，所述变量信息包括以下至少之一：数据名称、数据类型和在线值。
优选地，所述装置还包括：变量定义模块，用于对所述多个控制站各自的需同步的数据进行变量定义。
优选地，所述需同步的数据包括以下至少一种逻辑传输的数据：RS触发器、Z触发器、自保持逻辑和延时器。
根据本发明实施例提供的数据同步方法及装置，通过在任一控制站 故障恢复后，将故障的控制站进行输出闭锁，以使故障的控制站处于旁通状态；进一步将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；基于与故障的控制站建立的数据传输通道，对待同步的数据进行数据同步。从而实现了准确、可靠地将数据同步至故障的控制站，操作简单，同时保证了分布式控制系统的安全性和可用性。
附图说明
图1是示出根据本发明实施例一的数据同步方法的流程图；
图2是示出根据本发明实施例二的数据同步方法的流程图；
图3是示出根据本发明实施例三的数据同步装置的逻辑框图；
图4是示出根据本发明实施例四的数据同步装置的逻辑框图。
具体实施方式
下面结合附图(若干附图中相同的标号表示相同的元素)和实施例，对本发明的具体实施方式作进一步详细说明。以下实施例用于说明本发明，但不用来限制本发明的范围。
本领域技术人员可以理解，本发明中的“第一”、“第二”等术语仅用于区别不同步骤、设备或模块等，既不代表任何特定技术含义，也不表示它们之间的必然逻辑顺序。
实施例一
图1是示出根据本发明实施例一的数据同步方法的流程图。可在如维护工程师站等设备上执行所述方法。该数据同步方法用于核电站的分布式控制系统，核电站的分布式控制系统包括被配置为并行冗余的多个控制站。
参照图1，在步骤S110，在任一控制站故障恢复后，将核电站的分布式控制系统中故障的控制站进行输出闭锁，以使故障的控制站处于旁通状态。
具体地，在故障的控制站重启系统后，旁通故障的控制站，也就是将整个控制站的输出闭锁，即不进行输出。
在步骤S120，将故障的控制站的变量与选定的未故障的控制站的变 量进行比对，确定待同步的数据。
在具体的实现方式中，通常在工厂内完成建立对比变量列表的过程依据建立的对比变量列表对两个并行冗余控制站(即故障的控制站和未故障的控制站)进行变量监视，获得变量比对结果，为后续的数据同步步骤提供数据基础。
在步骤S130，与故障的控制站建立数据传输通道，并基于建立的数据传输通道，对待同步的数据进行数据同步。
在实际应用中，维护工程师站同时通过安全总线、数据传输站以及网关连接未故障的控制站，以便于获得未故障的控制站的变量的数据，并同步给故障的控制站。
此外，维护工程师站与控制站之间的连接方式可以依据平台特点采用其他的通讯介质或者通讯协议进行数据交互，本实施例对此不作具体限定。
本发明实施例提供的数据同步方法，通过在任一控制站故障恢复后，将故障的控制站进行输出闭锁，以使故障的控制站处于旁通状态；进一步将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；基于与故障的控制站建立的数据传输通道，对待同步的数据进行数据同步。从而实现了准确、可靠地将数据同步至故障的控制站，操作简单，同时保证了分布式控制系统的安全性和可用性。此外，控制站之间无需通讯手段，进一步提升了分布式控制系统运行的可靠性。
实施例二
图2是示出根据本发明实施例二的数据同步方法的流程图，所述实施例可视为图1的又一种具体的实现方案。可在如图4所示的数据同步装置执行所述方法。
参照图2，在步骤S210，在任一控制站故障恢复后，将核电站的分布式控制系统中故障的控制站进行输出闭锁，以使故障的控制站处于旁通状态。
其中，上述步骤S210的步骤内容与上述实施例一中步骤S110的步骤内容相同，在此不再赘述。
根据本发明可选实施例，在步骤S210之前，该数据同步方法还包括： 对多个控制站各自的需同步的数据进行变量定义。
需要说明的是，需同步的数据包括以下至少一种逻辑传输的数据：RS触发器、Z触发器、自保持逻辑和延时器，但不限于此。
上述变量定义的过程通常在工厂内完成。变量定义意为对控制站内的需同步和监视的数据进行组态定义，也就是对控制站进行应用逻辑组态。需要同步和监视的数据是控制站内运行的数据，即运行在控制站中软件逻辑(如前述RS触发器)的输入端和输出端的数据。控制站中的应用软件逻辑用于实现核电站的控制或保护功能。其中，需监视的数据即RS触发器、Z触发器、自保持或延时逻辑的输出端的数据，监视的目的在于确定两个控制站是否一致，如果不一致，需要进行数据同步操作。需同步的数据即以上逻辑的输入端，通过同步(如强制手段，即赋值)输入端的方法，达到输出数据一致的目的。
下面以RS触发器逻辑为例进行说明。首先，并行冗余控制站组态时，将RS触发器的R端和S端分别与组态定义点IN1和IN2做或逻辑；其次，读取两个控制站的输出端结果，进行比较，如果不一致，需要进行同步；再次，根据未故障的控制站的输出值，强制故障的控制站的输入点IN1或IN2，强制也就是为IN1和IN2赋值，以使两个控制站输出一致。例如为IN1和IN2赋值0或者1。其中，具体强制值可依据未故障的控制站输出的结果，通过冗余同步工具的配置文件来实现。最后，解除对故障的控制站的强制。
在步骤S220，获取未故障的控制站的至少一个变量的第一变量在线值以及故障的控制站的相应变量的第二变量在线值。
根据本发明示例性实施例，步骤S220可包括：根据对比变量列表获取针对需要进行比对的变量的对比变量列表中未故障的控制站的各变量的第一变量在线值以及对比变量列表中故障的控制站的相应变量的第二变量在线值。
在实际应用中，建立上述对比变量列表的过程通常在工厂内完成。相应地，该数据同步方法还可以包括：获取多个控制站各自的变量信息，并根据获取到的变量信息建立对比变量列表。
这里，变量信息可包括，但不限于以下至少之一：数据名称、数据类型和在线值。
在步骤S230，通过将未故障的控制站的各个至少一个变量的第一变量在线值以及故障的控制站的相应变量的第二变量在线值进行比对，确定待同步的数据。
在步骤S240，与故障的控制站建立数据传输通道，并基于建立的数据传输通道，对待同步的数据进行数据同步。
其中，上述步骤S240的步骤内容与上述实施例一中步骤S130的步骤内容相同，在此不再赘述。
在步骤S250，断开数据传输通道，并且解除故障的控制站所处的旁通状态。
以下结合具体的处理示例，来进一步更直观地说明一下本发明实施例的具体应用。
假设故障的控制站为目标站，未故障的控制站为参考站。旁通目标站后，目标站与维护工程师站通讯连接，维护工程师站装有冗余同步工具，该冗余同步工具的工作流程为执行本实施例的方法流程。现场维修工程师人员登陆，输入工程文件路径、用户名称和密码，在数据库中查找用户权限信息正确后解析工程文件。解析正确后，维护工程师站上运行的系统会返回所有控制站。现场维修工程师人员选择参考站和目标站，系统会加载参考站和目标站各自的变量信息，将变量的在线值显示在界面上。根据参考站和目标站各自的变量信息，从参考站和目标站中选择需要对比的变量从而建立对比变量列表，示例性地，下表1为对比变量列表。
表1
Figure PCTCN2017072493-appb-000001
参见表1，对比变量列表中的变量即是前述需监视的数据(即逻辑的输出端的数据)，每个变量都会命一个名字。如：HZRIS099MD。现场维修工程师人员可在维护工程师站的系统界面上点击“启动监视”按钮， 两个控制站同时进入监视状态，会显示上述对比变量列表中需对比的变量的在线值。此时，点击“数据同步按钮”，按照算法块配置文件中配置的逻辑，同步对比结果不一致的部分，直到所有不一致的部分都同步完成。如果点击“停止监视”按钮，参考站和目标站都结束与冗余同步工具的通信。
本发明实施例提供的数据同步方法，在前述实施例的基础上，还具有以下技术效果：
一方面，通过建立对比变量列表，并根据对比变量列表获取未故障的控制站的变量在线值以及故障的控制站的相应变量的变量在线值，从而准确地确定出待同步的数据；
另一方面，在本实施例中，数据同步之后断开数据传输通道，并且解除故障的控制站所处的旁通状态，保证了故障的控制站恢复正常运行；
再一方面，通过在数据同步之前，对多个控制站各自的需同步的数据进行变量定义，为后续数据同步步骤提供技术基础；
又一方面，仅与故障的控制站建立数据传输通道，并没有与未故障的控制站直接相连接，从而保证了控制站的安全运行。
实施例三
基于相同的技术构思，图3是示出根据本发明实施例三的数据同步装置的逻辑框图。可用以执行如实施例一所述的数据同步方法流程。
参照图3，数据同步装置用于核电站的分布式控制系统，核电站的分布式控制系统包括被配置为并行冗余的多个控制站，该数据同步装置包括：控制站闭锁模块310、变量比对模块320和通道建立及数据同步模块330。
控制站闭锁模块310用于在任一控制站故障恢复后，将核电站的分布式控制系统中故障的控制站进行输出闭锁，以使故障的控制站处于旁通状态。
变量比对模块320用于将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据。
通道建立及数据同步模块330，用于与故障的控制站建立数据传输通道，并基于建立的数据传输通道，对待同步的数据进行数据同步。
本发明实施例提供的数据同步装置，通过在任一控制站故障恢复后，将故障的控制站进行输出闭锁，以使故障的控制站处于旁通状态；进一步将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；基于与故障的控制站建立的数据传输通道，对待同步的数据进行数据同步。从而实现了准确、可靠地将数据同步至故障的控制站，操作简单，同时保证了分布式控制系统的安全性和可用性。此外，控制站之间无需通讯手段，进一步提升了分布式控制系统运行的可靠性。
实施例四
基于相同的技术构思，图4是示出根据本发明实施例四的数据同步装置的逻辑框图。可用以执行如实施例二所述的数据同步方法流程。
参照图4，具体地，变量比对模块320可以包括：
变量在线值获取单元3201用于获取未故障的控制站的至少一个变量的第一变量在线值以及故障的控制站的相应变量的第二变量在线值。
同步数据确定单元3202用于通过将未故障的控制站的各个至少一个变量的第一变量在线值以及故障的控制站的相应变量的第二变量在线值进行比对，确定待同步的数据。
其中，变量在线值获取单元3201可具体用于根据对比变量列表获取针对需要进行比对的变量的对比变量列表中未故障的控制站的各变量的第一变量在线值以及对比变量列表中故障的控制站的相应变量的第二变量在线值。
进一步地，该数据同步装置还可包括：通道断开及旁通解除模块340用于断开数据传输通道，并且解除故障的控制站所处的旁通状态。
可选地，该数据同步装置还包括：列表建立模块(图中未示出)用于获取多个控制站各自的变量信息，并根据获取到的变量信息建立对比变量列表。
优选地，变量信息可包括，但不限于以下至少之一：数据名称、数据类型和在线值。
更进一步地，该数据同步装置还包括：变量定义模块(图中未示出)用于对多个控制站各自的需同步的数据进行变量定义。
这里，需同步的数据可包括以下至少一种逻辑传输的数据：RS触发 器、Z触发器、自保持逻辑和延时器，但不限于此。
本发明实施例提供的数据同步装置，在前述实施例的基础上，还具有以下技术效果：第一，通过建立对比变量列表，并根据对比变量列表获取未故障的控制站的变量在线值以及故障的控制站的相应变量的变量在线值，从而准确地确定出待同步的数据；第二，在本实施例中，数据同步之后断开数据传输通道，并且解除故障的控制站所处的旁通状态，保证了故障的控制站恢复正常运行；第三，通过在数据同步之前，对多个控制站各自的需同步的数据进行变量定义，为后续数据同步步骤提供技术基础。
需要指出，根据实施的需要，可将本申请中描述的各个步骤/部件拆分为更多步骤/部件，也可将两个或多个步骤/部件或者步骤/部件的部分操作组合成新的步骤/部件，以实现本发明的目的。
上述根据本发明的方法可在硬件、固件中实现，或者被实现为可存储在记录介质(诸如CD ROM、RAM、软盘、硬盘或磁光盘)中的软件或计算机代码，或者被实现通过网络下载的原始存储在远程记录介质或非暂时机器可读介质中并将被存储在本地记录介质中的计算机代码，从而在此描述的方法可被存储在使用通用计算机、专用处理器或者可编程或专用硬件(诸如ASIC或FPGA)的记录介质上的这样的软件处理。可以理解，计算机、处理器、微处理器控制器或可编程硬件包括可存储或接收软件或计算机代码的存储组件(例如，RAM、ROM、闪存等)，当所述软件或计算机代码被计算机、处理器或硬件访问且执行时，实现在此描述的处理方法。此外，当通用计算机访问用于实现在此示出的处理的代码时，代码的执行将通用计算机转换为用于执行在此示出的处理的专用计算机。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (16)

  1. 一种数据同步方法，用于核电站的分布式控制系统，所述核电站的分布式控制系统包括被配置为并行冗余的多个控制站，所述方法包括：
    在任一所述控制站故障恢复后，将所述核电站的分布式控制系统中故障的控制站进行输出闭锁，以使所述故障的控制站处于旁通状态；
    将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；
    与所述故障的控制站建立数据传输通道，并基于建立的所述数据传输通道，对所述待同步的数据进行数据同步。
  2. 根据权利要求1所述的方法，其特征在于，所述将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据包括：
    获取所述未故障的控制站的至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值；
    通过将所述未故障的控制站的各个所述至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值进行比对，确定所述待同步的数据。
  3. 根据权利要求2所述的方法，其特征在于，所述获取所述未故障的控制站的至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值包括：
    根据对比变量列表获取针对需要进行比对的变量的对比变量列表中所述未故障的控制站的各变量的第一变量在线值以及所述对比变量列表中所述故障的控制站的相应变量的第二变量在线值。
  4. 根据权利要求1所述的方法，其特征在于，在所述基于所述故障的控制站与工程师站之间建立的数据传输通道，对所述待同步的数据进行数据同步之后，还包括：
    断开所述数据传输通道，并且解除所述故障的控制站所处的旁通状态。
  5. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    获取所述多个控制站各自的变量信息，并根据获取到的变量信息建立所述对比变量列表。
  6. 根据权利要求5所述的方法，其特征在于，所述变量信息包括以下至少之一：数据名称、数据类型和在线值。
  7. 根据权利要求1-6中任一项所述的方法，其特征在于，在所述在任一所述控制站故障恢复后，将核电站的分布式控制系统中故障的控制站旁通之前，还包括：
    对所述多个控制站各自的需同步的数据进行变量定义。
  8. 根据权利要求7所述的方法，其特征在于，所述需同步的数据包括以下至少一种逻辑传输的数据：RS触发器、Z触发器、自保持逻辑和延时器。
  9. 一种数据同步装置，用于核电站的分布式控制系统，所述核电站的分布式控制系统包括被配置为并行冗余的多个控制站，所述装置包括：
    控制站闭锁模块，用于在任一所述控制站故障恢复后，将所述核电站的分布式控制系统中故障的控制站进行输出闭锁，以使所述故障的控制站处于旁通状态；
    变量比对模块，用于将故障的控制站的变量与选定的未故障的控制站的变量进行比对，确定待同步的数据；
    通道建立及数据同步模块，用于与所述故障的控制站建立数据传输通道，并基于建立的所述数据传输通道，对所述待同步的数据进行数据同步。
  10. 根据权利要求9所述的装置，其特征在于，所述变量比对模块包括：
    变量在线值获取单元，用于获取所述未故障的控制站的至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值；
    同步数据确定单元，用于通过将所述未故障的控制站的各个所述至少一个变量的第一变量在线值以及所述故障的控制站的相应变量的第二变量在线值进行比对，确定所述待同步的数据。
  11. 根据权利要求10所述的装置，其特征在于，所述变量在线值获取单元用于根据对比变量列表获取针对需要进行比对的变量的对比变量列表中所述未故障的控制站的各变量的第一变量在线值以及所述对比变量列表中所述故障的控制站的相应变量的第二变量在线值。
  12. 根据权利要求9所述的装置，其特征在于，所述装置还包括：
    通道断开及旁通解除模块，用于断开所述数据传输通道，并且解除所述故障的控制站所处的旁通状态。
  13. 根据权利要求11所述的装置，其特征在于，所述装置还包括：
    列表建立模块，用于获取所述多个控制站各自的变量信息，并根据获取到的变量信息建立所述对比变量列表。
  14. 根据权利要求13所述的装置，其特征在于，所述变量信息包括以下至少之一：数据名称、数据类型和在线值。
  15. 根据权利要求9-14中任一项所述的装置，其特征在于，所述装置还包括：
    变量定义模块，用于对所述多个控制站各自的需同步的数据进行变量定义。
  16. 根据权利要求15所述的装置，其特征在于，所述需同步的数据包括以下至少一种逻辑传输的数据：RS触发器、Z触发器、自保持逻辑和延时器。
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