阅读说明：本技术 核电站多序列安全级显示和控制触摸屏系统及控制方法 (Nuclear power station multi-sequence safety level display and control touch screen system and control method ) 是由 梅世柏 程波 张刚 吴一谦 毛婷 于正龙 邹杰 王岩 周毅超 刘小雨 乔建旺 于 2018-11-21 设计创作，主要内容包括：本发明提供一种核电站多序列安全级显示和控制触摸屏系统及控制方法,包括发送序列调用信号的非安级全处理单元,接收调用信号的多个单序列安全级处理单元,用于在第一或第二切屏模式下切换被调用序列的安全级处理单元的设备状态信息和操作界面、并闭锁其它序列的安全级显示控制触摸屏；本发明克服了现有技术中每一序列安全级处理单元需要对应设置单序列安全级显示和控制触摸屏,导致工作效率低下,增加操作负荷和安全运行风险缺陷,通过采用多对一的方式,增加切屏模块,通过该切屏模块将多个安全级处理单元的设备状态信息和操作界面切换显示在同一个显示屏上。本发明优化核电站控制室的数字化人机接口设计,提高了工作效率和核电站运行的安全性。(The invention provides a nuclear power station multi-sequence security level display and control touch screen system and a control method, comprising a non-security level processing unit for sending sequence calling signals, a plurality of single-sequence security level processing units for receiving the calling signals, and a security level display control touch screen for switching equipment state information and an operation interface of the security level processing units of the called sequences and locking other sequences in a first or second screen switching mode; the invention overcomes the defects of low working efficiency, increased operation load and safe operation risk caused by that each sequence security level processing unit needs to be correspondingly provided with a single sequence security level display and control touch screen in the prior art, and adds a screen switching module by adopting a many-to-one mode, and switches and displays the equipment state information and the operation interface of a plurality of security level processing units on the same display screen by the screen switching module. The invention optimizes the design of a digital man-machine interface of the nuclear power station control room, and improves the working efficiency and the safety of the nuclear power station operation.)

1. A multi-sequence security level display and control touch screen system for a nuclear power station comprises at least one group of non-security level display units, a control unit and a display unit, wherein the non-security level display units are used for calling security level equipment information to be operated and sending a security level sequence calling command; the non-safety level processing unit is connected with the non-safety level display unit and is used for sending a calling signal to the safety level processing unit corresponding to the single sequence; each single-sequence security level processing unit is connected with the non-security level processing unit, and each single-sequence security level processing unit is connected with the security level equipment of the corresponding sequence; characterized in that the system further comprises: the safety level display unit is provided with a screen cut-off module;

the screen switching module is connected with the single-sequence security level processing units and is used for automatically switching the equipment state information and the operation interface of the security level processing unit of the called sequence in the first screen switching mode and locking the equipment state information and the operation interface of other sequences;

and the security level display unit is used for displaying the equipment state information and the operation interface of the called sequence.

2. The system according to claim 1, wherein the plurality of single-sequence security level processing units share one security level display and control touch screen, and the screen switching module switches and displays the device status information and the operation interface of the plurality of single-sequence security level processing units on the same display screen.

3. The system according to claim 1, wherein the plurality of single-sequence security level processing units are connected to the security level display and control touch screen, and further configured to receive an operation instruction through the touch screen, process and calculate based on the operation instruction, perform operation control on the security level device according to a result of the processing and calculation, and feed back execution state information of the security level device to the non-security level display unit and the security level display control touch screen, respectively.

4. The system of claim 3, wherein each sequential security level processing unit comprises: an instruction receiving unit module, a processing and calculating unit module, a calculation result output module, a security level execution unit and a state acquisition non-security level display unit, wherein,

the instruction receiving unit module is respectively connected with the non-safety level safety processing unit, the screen switching module and the processing and calculating unit module and is used for receiving the processed calling signals corresponding to the sequences and respectively transmitting the calling signals corresponding to the sequences to the screen switching module and the processing and calculating unit module;

the processing and calculating unit module is connected with the calculation result output module and used for processing and calculating according to the calling signal and sending the calculation result to the calculation result output module;

the calculation result output module is connected to the security level execution unit; the security level execution unit is used for respectively sending the execution state information of the security level equipment to the screen switching module through the state acquisition non-security level display unit module and simultaneously sending the non-security level display unit.

5. The system of claim 1, wherein the screen-switching module further comprises a second screen-switching mode, wherein the second screen-switching mode is a manual screen-switching mode, and is used for manually identifying the columns of the safety level sequence through information in the interface of the non-safety level display unit by an operator, and completing the manual screen-switching through a screen-switching button on the safety level display control touch screen, wherein corresponding equipment state information and an operation interface are displayed on the display unit.

6. The system according to claim 5, wherein the plurality of single-sequence security level processing units include at least two single-sequence security level processing units, the screen switching module includes a screen switching switch respectively disposed with each single-sequence security level processing unit, and each screen switching switch is configured to, after receiving the call signal of the corresponding sequence, automatically or manually switch to the device status information and the operation interface of the security level processing unit of the called sequence, and lock the device status information and the operation interface of the other sequence.

7. The system according to claim 4, wherein the instruction receiving unit module of the corresponding sequence is further configured to search the corresponding device status information and operation interface in the database after receiving the call instruction from the non-security level display unit, and send the related information to the screen switching module for switching; the equipment state information comprises opening and closing information of the valve, and the operation interface comprises information which is required to be displayed corresponding to the sequence.

8. A control method using the system according to any one of claims 1 to 7, characterized by comprising the steps of:

the non-safety level display unit calls safety level equipment information to be operated, sends a safety level sequence calling signal and carries out isolation processing on the calling signal;

the security level processing units of the corresponding sequences receive the processed calling signals and send the calculation results to the screen switching module;

automatically switching the equipment state information and the operation interface of the security level processing unit of the called sequence in the first screen switching mode, and locking the equipment state information and the operation interface of other sequences;

and switching and displaying the equipment state information and the operation interfaces of the multiple single-sequence security level processing units on the same display screen through the screen switching module, and displaying the equipment state information and the operation interfaces of the called sequence.

9. The method of claim 8, further comprising, prior to the step of automatically switching the device state information and operator interfaces of the security level processing unit of the invoked sequence in the first screen-cut mode and blocking the device state information and operator interfaces of the other sequences: receiving a calling command of a corresponding sequence, processing and calculating, carrying out operation control on the security level equipment according to a calculation result, and respectively feeding back execution state information of the security level equipment to a non-security level display unit and a security level display control touch screen;

the step of automatically switching the device state information and the operation interface of the security level processing unit of the called sequence in the first screen cut mode and locking the device state information and the operation interface of other sequences further comprises the following processing: after receiving a call instruction from the non-security level display unit, searching corresponding equipment state information and an operation interface in a database, and sending related information to the screen switching module for switching; the equipment state information comprises opening and closing information of the valve, and the operation interface comprises information which is required to be displayed corresponding to the sequence.

10. The method of claim 9, wherein the step of automatically switching the device state information and the operation interface of the security level processing unit of the called sequence in the first screen-cut mode and blocking the device state information and the operation interface of the other sequence further comprises the following steps:

in the second screen switching mode, an operator manually identifies the sequence of the security level sequence through information in the interface of the non-security level display unit, manual screen switching is completed through a screen switching button on the security level display control touch screen, and corresponding equipment state information and an operation interface are displayed on the display unit.

Technical Field

The invention relates to the technical field of safe operation of a nuclear power station, in particular to a nuclear power station man-machine interface for displaying and controlling states of multi-sequence safety-level equipment based on a digitization technology, and provides a multi-sequence safety-level display and control touch screen system and a control method for the nuclear power station.

Background

Nuclear power plant operation techniques take into account the technical complexities involved in nuclear accident safety, public environmental management, and the nuclear power plant systems themselves. Often, the functions and operation tasks of the power station need to be strictly analyzed in the design process, human factors and engineering influence factors are fully considered, and the possibility of nuclear accidents caused by human errors is avoided. In the normal operation period, especially the accident operation period, of the nuclear power station, safety-level equipment needs to be monitored and controlled frequently, so that the serious personnel life safety accidents and nuclear accidents caused by misoperation of the equipment by operators are avoided.

Since safety equipment plays a very important role in a nuclear power plant, a nuclear accident may be caused by a malfunction of the safety equipment. Therefore, there are strict requirements on quality identification, production and manufacturing, device isolation function (required to be isolated from non-safety-level devices), and operation and use modes of safety-level devices. In the prior art, a digital nuclear power plant Control room with a Single Sequence security Display (S-SDCTS) Touch Screen is used. And a Non-safety Display Unit (NC-VDU) in the control room of the digital nuclear power station sends screen adjusting instructions to S-SDCTSs with different sequences according to needs, and then safety equipment control instructions are issued by the S-SDCTSs with different sequences. The screen adjusting mode of the single-sequence security level touch screen avoids misoperation to the security level equipment caused by the failure of the non-security level equipment through the one-way transmission of screen adjusting signals, and realizes the function isolation of the control of the security level equipment and the non-security level equipment. However, when the number of safety sequences of the nuclear power plant is increased to multiple (for example, after 4 safety sequences are obtained), the number of single-sequence safety-level touch screens S-SDCTS on the digital operator workstation in the nuclear power plant control room also needs to be correspondingly increased to 4, which results in too many screens of the operator workstation, increased size of a workstation console, large single-work moving range of the operator, poor work feeling of the operator, reduced human comfort, influence on work efficiency, and increased operation load and safe operation risk.

The prior art is deficient and needs improvement.

Disclosure of Invention

Aiming at the problems of low working efficiency, large operation load, safe operation risk and the like in the prior art, the invention provides a nuclear power station multi-sequence safety level display and control touch screen system and a control method thereof, which adopt a unified centralized control and display mode at a safety level part and improve the working efficiency and the nuclear power station operation safety.

The technical scheme provided by the invention for the technical problem is as follows: a multi-sequence safety level display and control touch screen system of a nuclear power station comprises at least one non-safety level display unit, a safety level control unit and a safety level control unit, wherein the non-safety level display unit is used for calling safety level equipment information to be operated and sending a safety level sequence calling signal; the non-safety level processing unit is connected with the non-safety level display unit and used for carrying out isolation processing on the calling signal and sending the calling signal to the safety level processing unit corresponding to the single sequence; the safety level processing units of the corresponding sequences of the single-sequence safety level processing units are used for receiving the processed calling signals; the system further comprises: the multi-sequence security level display unit comprises a screen cutting module which is controllably connected with each single-sequence security level processing unit and is used for automatically switching the equipment state information and the operation interface of the security level processing unit of the called sequence in the first screen cutting mode and locking the equipment state information and the operation interface of other sequences; and the security level display unit is used for displaying the equipment state information and the operation interface of the called sequence.

The plurality of single-sequence security level processing units share one security level display and control touch screen, and the screen switching module switches and displays the equipment state information and the operation interface of the plurality of security level processing units on the same display screen.

The plurality of single-sequence security level processing units are further used for receiving the calling commands of the corresponding sequences, processing and calculating, performing operation control on the security level equipment according to the calculation result, and feeding back the execution state information of the security level equipment to the non-security level display unit and the security level display control touch screen respectively.

Wherein, each sequence security level processing unit comprises: the device comprises an instruction receiving unit module, a processing and calculating unit module, a calculation result output module, a security level execution unit and a state acquisition non-security level display unit module, wherein the instruction receiving unit module is respectively connected with the non-security level processing unit, a screen switching module and the processing and calculating unit module, and is used for receiving a calling command of a processed corresponding sequence and respectively transmitting the calling command of the corresponding sequence to the screen switching module and the processing and calculating unit module; the processing and calculating unit module is connected with the calculation result output module and used for processing and calculating according to the calling command and sending the calculation result to the calculation result output module; the calculation result output module is connected to the security level execution unit; the security level execution unit is used for respectively sending the execution state information of the security level equipment to the screen switching module through the state acquisition non-security level display unit module and simultaneously sending the non-security level display unit.

The screen switching module further comprises a second screen switching mode, the second screen switching mode is a manual screen switching mode and is used for enabling an operator to manually identify the sequence of the safety level sequence through information in an interface of the non-safety level display unit and completing manual screen switching through a screen switching button on the safety level display control touch screen, and corresponding equipment state information and an operation interface are displayed by the display unit.

The plurality of single-sequence security level processing units comprise at least two sequences of single-sequence security level processing unit processing units, the screen switching module comprises screen switching switches respectively arranged with each single-sequence security level processing unit, and each screen switching switch is used for automatically or manually switching to the equipment state information and the operation interface of the security level processing unit of the called sequence and locking the equipment state information and the operation interface of other sequences after receiving the calling signal of the corresponding sequence.

The instruction receiving unit module of the corresponding sequence is further used for searching corresponding equipment state information and an operation interface in a database after receiving a calling instruction from the non-security level display unit, and sending related information to the screen switching module for switching; the equipment state information comprises opening and closing information of the valve, and the operation interface comprises information which is required to be displayed corresponding to the sequence.

In another aspect, the present invention provides a control method, including the steps of:

s1, the non-safety level display unit calls the safety level equipment information to be operated, and sends out a safety level sequence calling signal to perform isolation processing on the calling signal; s2, the safety level processing units of the corresponding sequences of the single-sequence safety level processing units receive the processed calling signals and send the calculation results to the screen cutting module; s3, automatically switching the device state information and the operation interface of the security level processing unit of the called sequence in the first screen switching mode, and locking the device state information and the operation interface of other sequences; and S4, switching and displaying the equipment state information and the operation interface of the single-sequence security level processing units on the same display screen through the screen switching module, and displaying the equipment state information and the operation interface of the called sequence.

Wherein, the following steps are also included between steps S2 and S3: s23, receiving the calling signal of the corresponding sequence, processing and calculating, carrying out operation control on the safety level equipment according to the calculation result, and feeding back the execution state information of the safety level equipment to a non-safety level display unit and a safety level display control touch screen respectively; step S3 further includes: after receiving a calling signal from the non-security level display unit, searching corresponding equipment state information and an operation interface in a database, and sending related information to the screen switching module for switching; the equipment state information comprises opening and closing information of the valve, and the operation interface comprises information which is required to be displayed corresponding to the sequence.

Wherein, step S3 further includes the following processing: in the second screen switching mode, an operator manually identifies the sequence of the security level sequence through information in the interface of the non-security level display unit, manual screen switching is completed through a screen switching button on the security level display control touch screen, and corresponding equipment state information and an operation interface are displayed on the display unit.

The technical scheme provided by the embodiment of the invention has the following beneficial effects: the human factor engineering, the structural characteristics of a DCS system and the physical isolation, electrical isolation and functional isolation requirements required in safety regulations are fully considered; a hard switching device (namely a Screen switching module) is added between the Display and Control of an upper computer of the S-SDCTS and the calculation and processing of a lower computer, a Multi-Sequence security level Display Control Touch Screen (M-SDCTS: Multi Sequence Security Display and Control Touch Screen) is realized, the operation on different security Sequence devices can be completed by calling the same M-SDCTS through a Non-security level Display (NC-VDU: Non security visual Display Unit) (Screen switching confirmation is carried out after the M-SDCTS is called), under the condition that the original physical isolation, electrical isolation and functional isolation are ensured, the number of screens is reduced, the size of a workstation is reduced, the moving range of operators is narrowed, the human factor comfort level is improved, and the working efficiency and the convenience and the Safety performance of the operation of the nuclear power station are improved.

After the technical scheme is adopted, (1) in a control room of the digital nuclear power station, the safety level display and control touch screens with less quantity are used for meeting the monitoring and control requirements of safety level equipment, and Human Machine Interface (HMI) which is more in line with the Human factor engineering requirements is provided for an operator. (2) The invention overcomes the defects of low working efficiency and increased operation load and safe operation risk caused by the fact that each sequence of safety level processing units needs to be correspondingly provided with a single sequence of safety level display and control touch screen in the prior art, relies on a multi-sequence safety level display and control touch screen and a system thereof, operating personnel in a control room of a nuclear power station can efficiently and safely monitor and control the nuclear power station, and a screen switching module is added by adopting a multi-to-one mode and switches and displays equipment state information and operation interfaces of a plurality of safety level processing units on the same display screen through the screen switching module, thereby realizing the design of a digital man-machine interface of the control room of the nuclear power station and improving the working efficiency and the operation safety of the nuclear power station.

Drawings

Fig. 1 is a schematic structural diagram of a multi-sequence security level display and control touch screen system for a nuclear power plant according to an embodiment of the present invention.

Fig. 2 is a diagram of a multi-sequence security level display and control touch screen M-SDCTS application structure according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a multi-sequence security level display and control touch screen M-SDCTS according to an embodiment of the present invention.

Fig. 4 is a diagram of an internal structure of a multi-sequence security level display and control touch screen according to an embodiment of the present invention.

FIG. 5 is a flowchart of a control method according to a second embodiment of the present invention.

Detailed Description

In order to solve the problems of low working efficiency, large operation load, safe operation risk and the like in the prior art, the invention aims to provide a multi-sequence safety level display and control touch screen system and a control method for a nuclear power plant, which can reduce the number of screens of an operator workstation of a control room of a digital nuclear power plant of the nuclear power plant to the maximum extent after meeting the requirements of physical isolation, electrical isolation and functional isolation of monitoring and control of safety level equipment, provide a human-computer interface facility which meets the human factor requirement for an operator, improve the working efficiency of the operator and improve the operation safety of the nuclear power plant. The core idea is as follows: the module realizes related safety level sequence switching under an NC-VDU screen adjusting mode, and realizes electrical isolation, entity isolation and function isolation of different safety sequences. The multi-sequence security level display and control touch screen M-SDCTS system structure screen-cutting module can realize two modes of switching (soft switching and hard switching), wherein the soft switching (the first switching mode) is realized by automatically identifying the sequence of related security level sequences under an NC-VDU screen-adjusting mode through M-SDCTS system application software, and completing the calculation of an M-SDCTS lower computer and the automatic switching activation of a non-security level display unit (namely a security level processing unit of one of a plurality of single-sequence security level processing units). The lower computer calculation and non-safety level display units (namely, other safety level processing units except one safety level processing unit in the plurality of single-sequence safety level processing units) of the M-SDCTS which is not selected and activated do not display through the M-SDCTS screen and accept any operation instruction of the M-SDCTS screen. And the calculation of the M-SDCTS lower computer and the column of the non-safety level display unit which are automatically selected and activated are displayed through a column indicator lamp on the surface of the M-SDCTS screen. The hard switching (second switching mode) is operated by a button on the surface of the screen, and the button structure physically and uniquely selects and activates the lower computer computing and non-security level display unit of the M-SDCTS (namely, the security level processing unit of one of the plurality of single-sequence security level processing units) in a manual operation mode; the unselected and activated M-SDCTS lower computer calculation and non-safety level display units (namely, other safety level processing units except one safety level processing unit in the plurality of single-sequence safety level processing units) are not displayed through the M-SDCTS screen, and do not accept any operation instruction of the M-SDCTS screen. The column of the M-SDCTS lower computer calculation and non-safety level display units which are considered to be selected and activated is displayed through a light switching button on the surface of the M-SDCTS screen. The invention adopts a many-to-one mode, adds the screen switching module, and switches and displays the equipment state information and the operation interface of the single-sequence security level processing units on the same display screen through the screen switching module. The digital man-machine interface design of the nuclear power station control room is optimized, and the working efficiency and the operation safety of the nuclear power station are improved.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.