Intrusion alarm control equipment for nuclear power station

Abstract

The utility model provides an intrusion alarm control device for a nuclear power station. The intrusion alarm control device comprises an information collector and a central processor. The information collector comprises a nonvolatile memory, a collection input interface, a collection output interface, a collection communication interface and a collection network interface, the collection input interface is in communication connection with the detector equipment, and the collection output interface is in communication connection with the sensor equipment; and the nonvolatile memory is respectively in communication connection with the acquisition communication interface, the acquisition network interface and the acquisition input interface. The central processor comprises a central communication interface, a central network interface and an event data memory, the central communication interface is in communication connection with the acquisition communication interface, the central network interface is in communication connection with the acquisition network interface, and the event data memory is respectively in communication connection with the central communication interface and the central network interface. According to the utility model, the problem of single communication mode of the existing equipment can be solved.

Description

Technical Field

[0001] The utility model relates to the field of nuclear power security, in particular to an intrusion alarm control device used in a nuclear power plant. Background Art

[0002] The security business of nuclear power plants spans the fields of nuclear energy, special and civilian use, and has a wide range of applications. According to the "Guiding Opinions on Nuclear Security Work during the 14th Five-Year Plan Period": Aiming at the goal of promoting the modernization of my country's nuclear security governance system and governance capabilities, the development goals and 19 key tasks during the 14th Five-Year Plan period were proposed from six aspects, including legislation, supervision, capacity building, technological innovation, international exchanges and team building.

[0003] The security of nuclear power plants with existing technologies is plagued by problems such as "unclear industrial routes, narrow product research and development, and lack of control over the industrial chain". It is necessary to implement a special project for independent and controllable nuclear security equipment to ensure that the research and development technology of nuclear security systems and controller equipment is independent and reliable.

[0004] Intrusion alarm control and detection are very important in the security system of nuclear power plants and are used in control areas and protection areas. However, the communication methods of existing equipment are relatively simple, and intrusion alarm control equipment that can be used to adapt to the communication facilities of different power plant projects is very necessary. Utility Model Content

[0005] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide an intrusion alarm control device for a nuclear power plant, so as to solve the problem that the communication mode of the prior equipment is relatively single.

[0006] The utility model provides an intrusion alarm control device for a nuclear power plant, comprising:

[0007] An information collector, the information collector includes a non-volatile memory, a collection input interface, a collection output interface, a collection communication interface and a collection network interface, the collection input interface is connected to the detector device for communication, the collection output interface is connected to the sensor device for communication, and the non-volatile memory is connected to the collection communication interface, the collection network interface and the collection input interface for communication;

[0008] The central processing unit includes a central communication interface, a central network interface and an event data storage device. The central communication interface is communicatively connected to the collection communication interface, the central network interface is communicatively connected to the collection network interface, and the event data storage device is communicatively connected to the central communication interface and the central network interface respectively.

[0009] In one embodiment of the present utility model, the information collector further includes a hardware dip switch, the hardware dip switch is electrically connected to the non-volatile memory, and the hardware dip switch controls the communication mode of the non-volatile memory.

[0010] In one embodiment of the utility model, the communication mode includes Ethernet mode and RS485 mode. When the hardware dip switch is in Ethernet mode, the non-volatile memory outputs network signals to the central processing unit through the acquisition network interface. When the hardware dip switch is in RS485 mode, the non-volatile memory outputs communication signals to the central processing unit through the acquisition communication interface.

[0011] In one embodiment of the present invention, the collection input interface of the information collector is a 16-way input interface.

[0012] In one embodiment of the present invention, the collection output interface of the information collector is a 4-way output interface.

[0013] In one embodiment of the present invention, the central communication interface of the central processing unit is a 16-channel RS485 communication interface.

[0014] In one embodiment of the present invention, the detector device outputs the alarm signal to a non-volatile memory through a collection output interface of the information collector for storage.

[0015] In one embodiment of the present utility model, the non-volatile memory outputs the alarm signal to the central processing unit according to the communication mode selected by the hardware dip switch.

[0016] In one embodiment of the present utility model, the central processing unit outputs an alarm type signal corresponding to the alarm signal to the information collector, and then the collection input interface of the information collector outputs the alarm type signal.

[0017] The utility model provides an intrusion alarm control device for a nuclear power plant, and proposes an intrusion alarm control device for a security system of a nuclear power plant. The device supports 16-channel intrusion alarm information input collection and 4-channel intrusion alarm information output, has the ability to switch Ethernet and industrial control protocols, and can communicate and process various types of intrusion alarm signals collected through TCP / IP (Ethernet) network and RS485 communication protocol, and control and display the intrusion alarm information of detectors and sensor devices with different types of output switch quantity signals inside and outside the nuclear power plant area. The communication mode between the central processor and the information collector is mainly switched through the hardware dial switch and the software controller. After the alarm signal is collected through the collection input interface, it is input into the non-volatile memory for storage. The alarm signal is output to the central processor by selecting the TCP / IP network and RS485 communication protocol according to the communication mode. The central processor processes the alarm signal and determines its alarm type, and outputs the alarm type to the information collector, and finally outputs it from the collection output interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic diagram showing the structure of the intrusion alarm control device of the utility model;

[0020] Figure 2 The figure is a schematic diagram showing a signal transmission circuit of an intrusion alarm control device in one embodiment of the present invention. DETAILED DESCRIPTION

[0021] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0022] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0023] In the following description, a large number of details are discussed to provide a more thorough explanation of the embodiments of the present invention. However, it is obvious to those skilled in the art that the embodiments of the present invention can be implemented without these specific details. In other embodiments, well-known structures and devices are shown in the form of block diagrams rather than in detail to avoid making the embodiments of the present invention difficult to understand.

[0024] See also Figure 1-2, shown is an intrusion alarm control device for a nuclear power plant of the utility model. The intrusion alarm control device for a nuclear power plant of the utility model includes an information collector and a central processing unit. The information collector includes a non-volatile memory, an acquisition input interface, an acquisition output interface, an acquisition communication interface and an acquisition network interface. The acquisition input interface is communicatively connected to the detector device, the acquisition output interface is communicatively connected to the sensor device, and the non-volatile memory is communicatively connected to the acquisition communication interface, the acquisition network interface and the acquisition input interface respectively. The central processing unit includes a central communication interface, a central network interface and an event data storage device. The central communication interface is communicatively connected to the acquisition communication interface, the central network interface is communicatively connected to the acquisition network interface, and the event data storage device is communicatively connected to the central communication interface and the central network interface respectively.

[0025] like Figure 1 In the embodiment shown, the intrusion alarm control device of the utility model performs internal and external communication interaction and processing through TCP / IP (Ethernet) network and RS485 communication protocol, and controls and displays the intrusion alarm information of detectors and sensor devices with different types of output switch signals inside and outside the nuclear power plant area. The communication mode between the central processing unit and the information collector is mainly switched through the hardware dial switch and the software controller. After the alarm signal is collected through the collection input interface, it is input into the non-volatile memory for storage. The alarm signal is output to the central processing unit by selecting the TCP / IP network and RS485 communication protocol according to the communication mode. The central processing unit processes the alarm signal and determines its alarm type, and outputs the alarm type to the information collector, and finally outputs it from the collection output interface. The information collector includes a hardware dial switch, which is electrically connected to the non-volatile memory, and the hardware dial switch controls the output mode of the non-volatile memory. The hardware dip switch includes an Ethernet mode and an RS485 mode. When the hardware dip switch is in the Ethernet mode, the non-volatile memory outputs a signal through the acquisition network interface. When the hardware dip switch is in the RS485 mode, the non-volatile memory outputs a signal through the acquisition communication interface. The intrusion alarm control device of the utility model also includes a software controller, which is electrically connected to the information collector, and the software controller controls the information output mode of the non-volatile memory.

[0026] like Figure 2As shown, in one embodiment of the utility model, an intrusion alarm control device for a nuclear power plant security system is proposed to support 16-way intrusion alarm information input collection and 4-way intrusion alarm information output, and has the ability to switch Ethernet and industrial control protocols. After collecting various intrusion alarm signals from the input channel of the intrusion alarm control device, they are stored through a non-volatile memory and then communicated and transmitted according to Ethernet or RS485. The two communication modes are switched by a hardware dial switch to ensure the effectiveness and reliability of signal transmission. The non-volatile memory includes FLASH or EEPROM (Electrically Erasable Programmable Read-Only Memory), etc. In this embodiment, these two memories are mainly used for storage. The intrusion alarm information collected from the central processor part is stored in the event database, and the intrusion alarm information is displayed through the output channel of the intrusion alarm control device according to the judgment of the event type by the personnel. This device is applied to the security system of a nuclear power plant, has the ability to switch Ethernet and industrial control protocols, and can communicate, interact and process various types of intrusion alarm signals collected through TCP / IP network and RS485 communication protocol to meet the application requirements of different nuclear power plant projects. In this embodiment of the utility model, the acquisition input interface is a 16-way input interface, the acquisition output interface is a 4-way output interface, the central communication interface is a 16-way RS485 communication interface, and the detector LO (Line Out audio line output) device outputs the alarm signal to the non-volatile memory in the information collector through the acquisition output interface, and stores the alarm signal in the non-volatile memory. The detector LO device can perform signal acquisition, such as a photosensitive device, a sound receiving device, etc. The non-volatile memory outputs the alarm signal to the central processing unit according to the communication mode selected by the software controller or the hardware dip switch. The central processing unit outputs the alarm type signal corresponding to the alarm signal to the signal acquisition device, and then the alarm type signal is output by the acquisition input interface of the signal acquisition device. The device proposed by the utility model can also realize communication time-sharing switching through embedded software design, and the software is configured to switch the communication mode according to the actual application to realize fast and efficient communication processing.

[0027] Specifically, in one embodiment of the utility model, the intrusion alarm control device collects the switch intrusion alarm signals of different types of detector devices (pipeline fence detectors, three-detection detectors, etc.) inside and outside the nuclear power plant area through 16 input channels, and processes the collected signals through the built-in TCP / IP (Ethernet) network or RS485 communication (a serial communication protocol based on differential signal transmission) through the ADC (digital-to-analog converter) input collection function of its own device, and transmits the data to the central processor for subsequent analysis and processing, thereby realizing the collection of intrusion alarm signals. The intrusion alarm signal transmitted to the central processor of the intrusion alarm control device will be stored in the event database, and the user sets the pre-displayed intrusion alarm event. The central processor judges the alarm event, and then connects different types of sensor LO (Line Out audio line output) devices inside and outside the nuclear power plant area, such as alarm bells, alarm lights, etc., through the relay output channel of the intrusion alarm control device to warn of the intrusion alarm information. At the same time, the communication mode / mode switching can also be realized through the software control interface, and the software is configured to switch the communication mode according to the actual application to realize fast and efficient communication processing.

[0028] The utility model is an intrusion alarm control device for a nuclear power plant, which can communicate, interact and process various types of intrusion alarm signals collected through TCP / IP (Ethernet) network and RS485 communication protocol, and control and display the intrusion alarm information of detectors and sensor devices with different types of output switch signals inside and outside the nuclear power plant area. The communication mode between the central processor and the information collector is mainly switched through the hardware dial switch and the software controller. After the alarm signal is collected through the collection input interface, it is input into the non-volatile memory for storage, and then the alarm signal is output to the central processor by selecting the TCP / IP network and RS485 communication protocol according to the communication mode. The central processor processes the alarm signal and determines its alarm type, and outputs the alarm type to the information collector, and finally outputs it to the external communication device from the collection output interface of the information collector to display the alarm signal type.

[0029] Therefore, the problem of the relatively single communication mode of the existing equipment can be solved by the intrusion alarm control device for a nuclear power plant of the utility model.

[0030] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An intrusion alarm control device for a nuclear power plant, It is characterized in that include: An information collector, the information collector comprising a non-volatile memory, an acquisition input interface, an acquisition output interface, an acquisition communication interface and an acquisition network interface, the acquisition input interface being communicatively connected to a detector device, the acquisition output interface being communicatively connected to a sensor device, the non-volatile memory being communicatively connected to the acquisition communication interface, the acquisition network interface and the acquisition input interface respectively; A central processing unit, the central processing unit includes a central communication interface, a central network interface and an event data storage device, the central communication interface is communicatively connected to the acquisition communication interface, the central network interface is communicatively connected to the acquisition network interface, and the event data storage device is communicatively connected to the central communication interface and the central network interface respectively.

2. The intrusion alarm control device for a nuclear power plant according to claim 1, It is characterized in that The information collector further includes a hardware dip switch, which is electrically connected to the non-volatile memory and controls a communication mode of the non-volatile memory.

3. The intrusion alarm control device for a nuclear power plant according to claim 2, It is characterized in that The communication mode includes Ethernet mode and RS485 mode. When the hardware dip switch is in the Ethernet mode, the non-volatile memory outputs a network signal to the central processing unit through the acquisition network interface. When the hardware dip switch is in the RS485 mode, the non-volatile memory outputs a communication signal to the central processing unit through the acquisition communication interface.

4. The intrusion alarm control device for a nuclear power plant according to claim 1, It is characterized in that The collection input interface of the information collector is a 16-way input interface.

5. The intrusion alarm control device for a nuclear power plant according to claim 1, It is characterized in that The collection output interface of the information collector is a 4-way output interface.

6. The intrusion alarm control device for a nuclear power plant according to claim 5, It is characterized in that The central communication interface of the central processing unit is a 16-channel RS485 communication interface.

7. The intrusion alarm control device for a nuclear power plant according to claim 3, It is characterized in that The detector device outputs the alarm signal to the non-volatile memory through the acquisition output interface of the information collector for storage.

8. The intrusion alarm control device for a nuclear power plant according to claim 7, It is characterized in that The non-volatile memory outputs the alarm signal to the central processing unit according to the communication mode selected by the hardware dip switch.

9. The intrusion alarm control device for a nuclear power plant according to claim 8, It is characterized in that The central processing unit outputs the alarm type signal corresponding to the alarm signal to the information collector, and then the collection input interface of the information collector outputs the alarm type signal.

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