Inspection system for DCS (Distributed Control System) equipment of nuclear power station

Abstract

The utility model provides an inspection system for a DCS device of a nuclear power station, and the inspection system achieves the collection and transmission of health parameters and environmental parameters of the DCS device through the connection and cooperation of a switch connected with the DCS device, an environmental sensor in a cabinet where the DCS device is located, and a data transmission module. The micro-service cluster is connected with the data transmission module, the health parameters and the environment parameters are received and processed, the processing result is sent to the report generation module, the report generation module generates an inspection report, in addition, the real-time data display module is connected with the switch, and therefore the environment parameters and the health parameters forwarded by the switch are received and displayed in real time. The environment where the DCS equipment is located and the state of the DCS equipment are monitored, manual participation is not needed in the whole process, and the purposes of automatic inspection and on-line monitoring of the DCS equipment are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment inspection, in particular to an inspection system for DCS equipment in a nuclear power plant. Background Art

[0002] In the field of nuclear power industry chain, nuclear power digital instrumentation and control system, namely DCS, contains a variety of DCS equipment. DCS system is called the "nerve center" of nuclear power plant and is a complex and important equipment in the field of nuclear power. Because the system is directly related to the operation safety of nuclear power units, the system reliability requirements are extremely high.

[0003] With the continuous increase of nuclear power units in my country, some nuclear power DCS equipment is facing inspection problems, including: 1. The inspection means are limited and rely on manual inspection. 2. The equipment is in long-term operation and manual inspection and monitoring cannot be done in real time. 3. There is a problem of difficulty in locating equipment faults. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides an inspection system for DCS equipment in a nuclear power plant to achieve the purpose of automatic inspection and online monitoring of DCS equipment.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] The utility model embodiment discloses a patrol inspection system for DCS equipment of a nuclear power plant, the system comprising: an environmental sensor (1), a switch (2), a data transmission module (3), a microservice cluster (4), a report generation module (5) and a real-time data display module (6);

[0007] The environmental sensor (1) is arranged in a cabinet where the DCS equipment is located, and detects environmental parameters in the cabinet in real time;

[0008] The switch (2) and the board of the DCS device, and the switch (2) and the environmental sensor (1) are connected via a health management network for unidirectional data transmission, and the switch (2) forwards the health parameters of the DCS device and the environmental parameters to the real-time data display module (6);

[0009] The real-time data display module (6) is connected to the switch (2), and the real-time data display module (6) displays the health parameters and the environmental parameters, and displays alarm information obtained by early warning analysis based on the health parameters;

[0010] The data transmission module (3) is connected to the switch (2) and the microservice cluster (4), the microservice cluster (4) is connected to the report generation module (5), and the data transmission module (3) receives the health parameter and the environmental parameter forwarded in real time by the switch (2), and transmits them to the microservice cluster (4);

[0011] After processing the health parameters and the environmental parameters, the microservice cluster (4) sends the processing results to the report generation module (5), so that the report generation module (5) generates an inspection report.

[0012] Preferably, the data transmission module (3) comprises: a Redis cache database (31), a Flink stream computing server (32) and a PostgreSQL relational database (33);

[0013] The Redis cache database (31) is connected to the switch (2), and a firewall is provided between the Redis cache database (31) and the switch (2);

[0014] The Flink stream computing server (32) is connected to the Redis cache database (31) and the PostgreSQL relational database (33) respectively;

[0015] The PostgreSQL relational database (33) is connected to the microservice cluster (4);

[0016] The Flink stream computing server (32) parses the health parameters and the environmental parameters cached by the Redis cache database (31), and sends them to the PostgreSQL relational database (33) for storage. When the inspection starts, the PostgreSQL relational database (33) transmits the health parameters and the environmental parameters to the microservice cluster (4).

[0017] Preferably, the report generation module (5) comprises: a report generation server (51), an inspection storage disk (52) and a client (53);

[0018] The report generation server (51) is connected to the microservice cluster (4), the inspection storage disk (52) and the client (53);

[0019] The report generation server (51) generates an inspection report based on the processing result of the health parameters of the DCS device sent by the microservice cluster (4), saves the inspection report to the inspection storage disk (52), and sends it to the client (53) for display.

[0020] Preferably, the microservice cluster (4) includes: an exception handling module (41);

[0021] The exception processing module (41) is connected to the client (53), and the exception processing module (41) transmits the exception data obtained during the processing of the health parameters of the DCS device to the client (53) for display;

[0022] Correspondingly, the client (53) is connected to the inspection storage disk (52) and stores the abnormal data in the inspection storage disk (52).

[0023] Preferably, the real-time data display module (6) comprises: an intelligent operation and maintenance system server (61) and a display terminal (62);

[0024] The intelligent operation and maintenance system server (61) is connected to the switch (2) via a health management network for unidirectional data transmission, and unidirectionally receives the health parameters and environmental parameters transmitted in real time by the switch (2);

[0025] The intelligent operation and maintenance system server (61) is connected to the display terminal (62), and uses the display terminal (62) to display the health parameters and the environmental parameters, as well as alarm information obtained by early warning analysis based on the health parameters.

[0026] Preferably, the environmental sensor (1) comprises: any one or more of a temperature sensor, a humidity sensor and a dust sensor.

[0027] Preferably, the system further comprises: a first camera (7) arranged in the cabinet where the DCS device is located, a second camera (8) arranged outside the DCS device cabinet, and a monitoring storage disk (9);

[0028] The storage disk is connected to the first camera (7), the second camera (8) and the microservice cluster (4); the monitoring storage disk (9) stores the monitoring video captured by the first camera (7) and the second camera (8) in real time, and responds to the call of the microservice cluster (4) to transmit the corresponding monitoring video to the microservice cluster (4).

[0029] Preferably, the first camera (7) comprises: a steerable camera;

[0030] The steerable camera is connected to the microservice cluster (4), and the microservice cluster (4) controls the steerable camera to aim at any one of the multiple DCS devices in the cabinet.

[0031] Preferably, the system further comprises: an engineer station (10);

[0032] The engineer station (10) and the switch (2) are connected via a maintenance network.

[0033] Preferably, the microservice cluster (4) includes: a microservice cluster with security protection function.

[0034] Based on the above-mentioned embodiment of the utility model, a patrol inspection system for DCS equipment in a nuclear power plant is provided. The patrol inspection system realizes the collection and transmission of health parameters and environmental parameters of the DCS equipment through the connection and cooperation between the switch connected to the DCS equipment, the environmental sensor in the cabinet where the DCS equipment is located, and the data transmission module. The data transmission module is connected through a microservice cluster, and after receiving the health parameters and environmental parameters for processing, the processing results are sent to the report generation module, so that the report generation module generates a patrol inspection report. In addition, the real-time data display module is connected to the switch, so as to receive and display the environmental parameters and health parameters forwarded by the switch in real time, and then the environment in which the DCS equipment is located and the status of the DCS equipment are monitored. No human participation is required throughout the process, thereby achieving the purpose of automatic patrol inspection and online monitoring of DCS equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0036] Figure 1 A structural diagram of a patrol inspection system for DCS equipment in a nuclear power plant disclosed in an embodiment of the utility model;

[0037] Figure 2 This is a structural diagram of another inspection system for DCS equipment in a nuclear power plant disclosed in an embodiment of the utility model;

[0038] Among them, 1 is an environmental sensor, 2 is a switch, 3 is a data transmission module, 4 is a microservice cluster, 5 is a report generation module, 6 is a real-time data display module, 7 is a first camera, 8 is a second camera, 9 is a monitoring storage disk, 10 is an engineer station, 31 is a Redis cache database, 32 is a Flink stream computing server, 33 is a PostgreSQL relational database, 41 is an exception handling module, 51 is a report generation server, 52 is an inspection storage disk, 53 is a client, 61 is an intelligent operation and maintenance system server, and 62 is a display terminal. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In this application, the terms "comprises", "comprising" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0041] like Figure 1 FIG. 1 is a structural diagram of a patrol inspection system for DCS equipment of a nuclear power plant disclosed in an embodiment of the utility model, including:

[0042] Environmental sensor (1), switch (2), data transmission module (3), microservice cluster (4), report generation module (5), real-time data display module (6), first camera (7), second camera (8), monitoring storage disk (9) and engineer station (10).

[0043] The environmental sensor (1) is arranged in the cabinet where the DCS equipment is located, and detects the environmental parameters in the cabinet in real time.

[0044] Preferably, the environmental sensor (1) includes any one or more of a temperature sensor, a humidity sensor and a dust sensor, and correspondingly, the environmental parameters detected in real time include the temperature, humidity and dust in the cabinet.

[0045] It should be noted that the setting of the environmental sensor (1) is an improvement on the current manual periodic inspection method, and it can determine whether the environment inside the cabinet is abnormal based on the set threshold.

[0046] The switch (2) and the board of the DCS device, as well as the switch (2) and the environmental sensor (1), are connected via a health management network (i.e., HCNET) for unidirectional data transmission, and the switch (2) forwards the health parameters and environmental parameters of the DCS device to the real-time data display module (6).

[0047] It should be noted that a secure network connection is established through a health management network that transmits data in one direction to ensure the security of data transmission.

[0048] It is understandable that the health parameters output by the board of the DCS device include: circuit-level health parameters, health parameters of each channel, and health parameters of different network levels.

[0049] The real-time data display module (6) is connected to the switch (2), and the real-time data display module (6) displays health parameters and environmental parameters, as well as displays alarm information obtained through early warning analysis based on the health parameters.

[0050] Preferably, the real-time data display module (6) and the switch (2) are connected via a health management network (i.e., HCNET) for unidirectional data transmission, thereby ensuring that data is unidirectionally transmitted from the switch (2) to the real-time data display module (6), thereby meeting data security requirements.

[0051] By uploading the environmental parameters to the real-time data display module (6), the purpose of remotely sensing the operating environment of the device can be achieved.

[0052] The data transmission module (3) is connected to the switch (2) and the microservice cluster (4), and the microservice cluster (4) is connected to the report generation module (5). The data transmission module (3) receives the health parameters and environmental parameters forwarded by the switch (2) in real time, and transmits them to the microservice cluster (4).

[0053] It should be noted that the data transmission module (3) can record the health status of the DCS equipment online, changing the current inspection method of taking offline, manual and regular inspection of the equipment.

[0054] After processing the health parameters and environmental parameters of the DCS equipment, the microservice cluster (4) sends the processing results to the report generation module (5), so that the report generation module (5) generates an inspection report.

[0055] Preferably, the microservice cluster (4) includes: a microservice cluster with security protection function.

[0056] It should be noted that after the inspection is started, the microservice cluster (4) queries the health parameters that need to be inspected according to the set inspection information, reads and analyzes the health parameters from the data transmission module (3), and determines normal health parameters and abnormal health parameters.

[0057] The first camera (7) is arranged in the cabinet where the DCS device is located, and the first camera (8) is arranged outside the cabinet where the DCS device is located.

[0058] The storage disk is connected to the first camera (7), the second camera (8) and the microservice cluster (4); the monitoring storage disk (9) stores the monitoring videos captured by the first camera (7) and the second camera (8) in real time, and responds to the call of the microservice cluster (4) to transmit the corresponding monitoring videos to the microservice cluster (4).

[0059] It should be noted that, for locations that only require fixed monitoring, a fixed second camera (8) can be set outside the cabinet to monitor DCS equipment image information, operating status, temperature and humidity, equipment stress information, etc.

[0060] Preferably, the first camera (7) comprises: a steerable camera.

[0061] The steerable camera is connected to the microservice cluster (4), and the microservice cluster (4) controls the steerable camera to aim at any one of the multiple DCS devices in the cabinet.

[0062] It should be noted that, in the equipment cabinet, the camera that can be turned through the microservice cluster (4) is linked with the health parameters. Specifically, if the health parameters are abnormal, the linked camera is turned to the DCS device with abnormal health parameters for real-time monitoring.

[0063] In one embodiment, the monitoring storage disk (9) is connected to the real-time data display module (6), so that the real-time data display module (6) displays the images captured by the first camera (7) and the second camera (8) in real time.

[0064] The engineer station (10) and the switch (2) are connected via a maintenance network.

[0065] Engineers can use the engineer station (10) to obtain health parameters that characterize the internal operating status of the software and hardware DCS equipment that cannot be collected by manual inspections based on the content of the inspection work settings and the health parameters forwarded by the switch, thereby increasing the breadth and depth of the inspection scope.

[0066] Based on the above-mentioned embodiment of the utility model, a patrol inspection system for DCS equipment in a nuclear power plant is disclosed. The patrol inspection system realizes the collection and transmission of health parameters and environmental parameters of the DCS equipment through the connection and cooperation between the switch connected to the DCS equipment, the environmental sensor in the cabinet where the DCS equipment is located, and the data transmission module. The data transmission module is connected through a microservice cluster, and after receiving the health parameters and environmental parameters for processing, the processing results are sent to the report generation module, so that the report generation module generates a patrol inspection report. In addition, the real-time data display module is connected to the switch, so as to receive and display the environmental parameters and health parameters forwarded by the switch in real time, and then the environment in which the DCS equipment is located and the status of the DCS equipment are monitored. No human participation is required throughout the process, thereby achieving the purpose of automatic patrol inspection and online monitoring of DCS equipment.

[0067] like Figure 2 FIG. 1 is a structural diagram of another inspection system for DCS equipment in a nuclear power plant disclosed in an embodiment of the utility model. Figure 1 Based on the inspection system of the DCS equipment of the nuclear power plant shown, the data transmission module (3), the report generation module (5) and the real-time data display module (6) are further described.

[0068] Furthermore, the data transmission module (3) includes: a Redis cache database (31), a Flink stream computing server (32) and a PostgreSQL relational database (33).

[0069] The Redis cache database (31) is connected to the switch (2), and a firewall is provided between the Redis cache database (31) and the switch (2).

[0070] The Flink stream computing server (32) is connected to the Redis cache database (31) and the PostgreSQL relational database (33) respectively.

[0071] The PostgreSQL relational database (33) is connected to the microservice cluster (4).

[0072] The Flink stream computing server (32) parses the health parameters and environment parameters cached in the Redis cache database (31) and sends them to the PostgreSQL relational database (33) for storage. When the inspection starts, the PostgreSQL relational database (33) transmits the health parameters and environment parameters to the microservice cluster (4). The contents stored in the PostgreSQL relational database (33) are shown in the following table:

[0073]

[0074] Among them, indicators, configurations, fault snapshots, and logs contain health parameters of DCS devices.

[0075] Furthermore, the report generation module (5) includes: a report generation server (51), an inspection storage disk (52) and a client (53).

[0076] The report generation server (51) is connected to the microservice cluster (4), the inspection storage disk (52) and the client (53).

[0077] The report generation server (51) generates an inspection report based on the processing result of the health parameters of the DCS equipment sent by the microservice cluster (4), saves the inspection report to the inspection storage disk (52), and sends it to the client (53) for display.

[0078] It should be noted that after the inspection is started, the microservice cluster (4) queries the health parameters that need to be inspected according to the set inspection information, reads and parses the health parameters from the PostgreSQL relational database (33) in the data transmission module (3), determines the normal health parameters and the abnormal health parameters, and sends the normal health parameters and the abnormal health parameters to the report generation server (51), so that the report generation server (51) generates an inspection report, saves the inspection report to the inspection storage disk (52), and sends it to the client (53) for display.

[0079] Preferably, the microservice cluster (4) includes: an exception handling module (41).

[0080] The exception processing module (41) is connected to the client (53), and the exception processing module (41) transmits the exception data obtained in the process of processing the health parameters of the DCS equipment to the client (53) for display.

[0081] It should be noted that the functions of the abnormality processing module (41) include identifying and matching the health parameters with the threshold range, and marking the health parameters within the fault and sub-health threshold range as abnormal data.

[0082] Correspondingly, the client (53) is connected to the inspection storage disk (52) and stores the abnormal data confirmed by the engineer through the client (53) in the inspection storage disk (52).

[0083] The abnormal data refers to abnormal health parameters. The abnormal data obtained during the process of processing the health parameters of the DCS equipment by the abnormal processing module (41) will trigger an abnormal alarm. The engineer will confirm the abnormal alarm online through the client (53) and store it in the inspection storage disk (52).

[0084] Furthermore, the real-time data display module (6) includes: an intelligent operation and maintenance system server (61) and a display terminal (62).

[0085] The intelligent operation and maintenance system server (61) and the switch (2) are connected via a health management network for unidirectionally transmitted data, and the health parameters and environmental parameters of the DCS equipment transmitted in real time by the switch (2) are unidirectionally received.

[0086] Among them, the intelligent operation and maintenance system server (61) is the iMSP server.

[0087] The intelligent operation and maintenance system server (61) is connected to the display terminal (62), and uses the display terminal (62) to display the health parameters and environmental parameters of the DCS equipment, as well as the alarm information obtained by early warning analysis based on the health parameters of the DCS equipment.

[0088] The display terminal (62) may be a screen or a mobile terminal.

[0089] Based on the inspection system of a nuclear power plant DCS equipment disclosed in the above-mentioned embodiment of the utility model, the environmental parameters and health parameters are cached, parsed and stored through the connection and cooperation between the Redis cache database, the Flink stream computing server and the PostgreSQL relational database, and finally the purpose of transmitting the environmental parameters and health parameters to the microservice cluster is achieved. The microservice cluster is connected by using a report generation server, and an inspection report is generated according to the analysis results output by the microservice cluster. The report is connected to the client and displayed through the client, and automation is realized without human participation. The intelligent operation and maintenance system server is used to connect the switch and the display terminal, and the health parameters and environmental parameters are obtained in real time and displayed, so as to achieve the purpose of online monitoring of the DCS equipment.

[0090] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can refer to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system or system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can refer to the partial description of the method embodiment. The system and system embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0091] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present utility model.

[0092] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A patrol inspection system for DCS equipment in a nuclear power plant, characterized in that: The system comprises: an environmental sensor (1), a switch (2), a data transmission module (3), a microservice cluster (4), a report generation module (5) and a real-time data display module (6); The environmental sensor (1) is arranged in a cabinet where the DCS equipment is located, and detects environmental parameters in the cabinet in real time; The switch (2) and the board of the DCS device, as well as the switch (2) and the environmental sensor (1), are connected via a health management network for unidirectional data transmission, and the switch (2) forwards the health parameters of the DCS device and the environmental parameters to the real-time data display module (6); The real-time data display module (6) is connected to the switch (2), and the real-time data display module (6) displays the health parameters and the environmental parameters, and displays alarm information obtained by early warning analysis based on the health parameters; The data transmission module (3) is connected to the switch (2) and the microservice cluster (4), the microservice cluster (4) is connected to the report generation module (5), and the data transmission module (3) receives the health parameter and the environmental parameter forwarded in real time by the switch (2), and transmits them to the microservice cluster (4); After processing the health parameters and the environmental parameters, the microservice cluster (4) sends the processing results to the report generation module (5), so that the report generation module (5) generates an inspection report.

2. The system according to claim 1, characterized in that The data transmission module (3) comprises: a Redis cache database (31), a Flink stream computing server (32) and a PostgreSQL relational database (33); The Redis cache database (31) is connected to the switch (2), and a firewall is provided between the Redis cache database (31) and the switch (2); The Flink stream computing server (32) is connected to the Redis cache database (31) and the PostgreSQL relational database (33) respectively; The PostgreSQL relational database (33) is connected to the microservice cluster (4); The Flink stream computing server (32) parses the health parameters and the environmental parameters cached by the Redis cache database (31), and sends them to the PostgreSQL relational database (33) for storage. When the inspection starts, the PostgreSQL relational database (33) transmits the health parameters and the environmental parameters to the microservice cluster (4).

3. The system according to claim 1, characterized in that The report generation module (5) comprises: a report generation server (51), an inspection storage disk (52) and a client (53); The report generation server (51) is connected to the microservice cluster (4), the inspection storage disk (52) and the client (53); The report generation server (51) generates an inspection report based on the processing result of the health parameters of the DCS device sent by the microservice cluster (4), saves the inspection report to the inspection storage disk (52), and sends it to the client (53) for display.

4. The system according to claim 3, characterized in that The microservice cluster (4) includes: an exception handling module (41); The exception processing module (41) is connected to the client (53), and the exception processing module (41) transmits the exception data obtained during the processing of the health parameters of the DCS device to the client (53) for display; Correspondingly, the client (53) is connected to the inspection storage disk (52) to store the abnormal data in the inspection storage disk (52).

5. The system according to claim 1, characterized in that The real-time data display module (6) comprises: an intelligent operation and maintenance system server (61) and a display terminal (62); The intelligent operation and maintenance system server (61) is connected to the switch (2) via a health management network for unidirectional data transmission, and unidirectionally receives the health parameters and environmental parameters transmitted in real time by the switch (2); The intelligent operation and maintenance system server (61) is connected to the display terminal (62), and uses the display terminal (62) to display the health parameters and the environmental parameters, as well as alarm information obtained by early warning analysis based on the health parameters.

6. The system according to claim 1, characterized in that The environmental sensor (1) comprises: any one or more of a temperature sensor, a humidity sensor and a dust sensor.

7. The system according to claim 1, characterized in that The system further comprises: a first camera (7) arranged in the cabinet where the DCS device is located, a second camera (8) arranged outside the DCS device cabinet, and a monitoring storage disk (9); The storage disk is connected to the first camera (7), the second camera (8) and the microservice cluster (4); the monitoring storage disk (9) stores the monitoring video captured by the first camera (7) and the second camera (8) in real time, and responds to the call of the microservice cluster (4) to transmit the corresponding monitoring video to the microservice cluster (4).

8. The system according to claim 7, characterized in that The first camera (7) comprises: a steerable camera; The steerable camera is connected to the microservice cluster (4), and the microservice cluster (4) controls the steerable camera to aim at any one of the multiple DCS devices in the cabinet.

9. The system according to claim 1, characterized in that The system further comprises: an engineer station (10); The engineer station (10) and the switch (2) are connected via a maintenance network.

10. The system according to any one of claims 1 to 9, characterized in that: The microservice cluster (4) comprises: a microservice cluster with a security protection function.

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