Nuclear power plant security level display device operating system and method

Abstract

The invention discloses a nuclear power plant safety level display device operating system and method, and relates to the field of nuclear power plant digital instrument control, enabling of a touch screen is completed through a method of controlling power supply of a touch screen, a touch screen controller and other units through hardware, compared with software enabling control, the risk of misoperation caused by software failure can be avoided, and the safety level display device operating system and method can be applied to nuclear power plant digital instrument control. Therefore, the reliability and the safety of the safety-level display device are improved. Meanwhile, redundant independent keys are arranged on the touch screen, redundant operation equipment can be provided when the touch screen fails, loss of operation functions of the security level display device is avoided, and usability of the security level display device can be improved.

Description

Technical Field

[0001] The invention relates to the field of digital instrumentation and control of nuclear power plants, and in particular to an operating system and method for a safety-level display device of a nuclear power plant. Background Art

[0002] The safety-level display device of the instrumentation and control system of a nuclear power plant has the important safety function of providing the operator with various safety-related parameter information related to the reactor protection system and the post-accident monitoring system, and sending control instructions to the safety-level system. Existing safety-level display devices at home and abroad all use touch screens as their human-machine input devices, and the touch screens are enabled and controlled by software. There may be a risk that the touch screen fails when an operation is required, or the touch screen generates a risk of misoperation due to software failure when no operation is required, which reduces the reliability and availability of the safety-level display terminal. Summary of the invention

[0003] The object of the present invention is to provide an operating system and method for a safety-level display device in a nuclear power plant, which solves the problem in the prior art that the touch screen has a high risk of misoperation or cannot be operated when it fails.

[0004] The present invention is achieved through the following technical solutions:

[0005] In one aspect, the present invention provides an operating system for a safety-level display device of a nuclear power plant, comprising: a touch screen enabling module and an independent key enabling module;

[0006] The touch screen enabling module is used to control the touch screen to enable in response to the control signal of the enabling switch, and to receive the touch control signal through the touch screen to control the safety-level display device of the nuclear power plant by the touch control signal.

[0007] The independent key enabling module is used to respond to the control signal of the independent key and realize the control of the safety level display device of the nuclear power plant through the control signal.

[0008] In a possible implementation, the touch screen enabling module includes a power isolator, an electrical controller, an enabling switch, a touch screen controller, a filter, and a touch screen;

[0009] The power isolator is used to isolate the power supply between the control end and the controlled end of the electric controller, the enabling switch is arranged on the control end, and the touch screen controller is arranged on the controlled end of the electric controller; and when the enabling switch is turned off, the controlled end of the electric controller is turned on, so that the touch screen controller is connected to the power supply on the controlled end; when the enabling switch is turned off, the controlled end of the electric controller is disconnected, so that the touch screen controller is disconnected from the power supply on the controlled end;

[0010] The touch screen controller is connected to the touch screen through a filter to receive a touch control signal through the touch screen, collect the touch control signal through the touch screen controller, and transmit the touch control signal to a processor of the nuclear power plant safety-level display device for control.

[0011] In a possible implementation manner, the electrical controller is configured as a PhotoMOS.

[0012] In a possible implementation, the filter is used to perform common mode filtering, EMI filtering and ESD protection on the signal generated by the touch screen.

[0013] In a possible implementation, the touch screen is configured as a four-wire resistive touch screen.

[0014] In a possible implementation, the independent key enabling module includes a plurality of independent keys and an independent key acquisition unit;

[0015] The independent key acquisition units are respectively connected to a plurality of independent keys, and are used for filtering, de-jittering and acquiring independent key signals, and transmitting the acquired independent key signals to the processor of the safety-level display device of the nuclear power plant for control.

[0016] In a possible implementation, it also includes: a signal isolator U3 and a processor;

[0017] The signal isolator U3 is used to transmit the signal collected by the touch screen controller to the processor using capacitive isolation technology or magnetic isolation technology;

[0018] The processor is used to operate the safety-level display device of the nuclear power plant according to the signal collected by the touch screen controller.

[0019] In a possible implementation, a signal isolator U4 is also included;

[0020] The signal isolator U4 is used to transmit the key signal collected by the independent key collection unit to the processor by using optical isolation technology, capacitive isolation technology or magnetic isolation technology;

[0021] The processor is also used to operate the safety level display device of the nuclear power plant according to the key signal.

[0022] In another aspect, the present invention provides a method for operating a safety level display device of a nuclear power plant, comprising:

[0023] In response to the control signal of the enable switch, the touch screen is controlled to be enabled, and the touch control signal is received through the touch screen to realize the control of the safety-level display device of the nuclear power plant by the touch control signal;

[0024] When the touch screen is unresponsive, it responds to the control signal of the independent key, and controls the safety-level display device of the nuclear power plant through the control signal.

[0025] In a possible implementation manner, the enabling switch is arranged on a power circuit of a touch screen controller corresponding to the touch screen.

[0026] The present invention provides an operating system and method for a safety-level display device in a nuclear power plant. The touch screen is enabled by a method of controlling the power supply of units such as the touch screen and the touch screen controller through hardware. Compared with software-enabled control, the risk of misoperation caused by software failure can be avoided, thereby improving the reliability and safety of the safety-level display device. At the same time, redundant independent buttons are set on the touch screen, and redundant operating equipment can be provided when the touch screen fails, thereby avoiding the loss of the operating function of the safety-level display device and improving its usability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0028] Figure 1 A schematic structural diagram of an operating system for a safety-level display device in a nuclear power plant provided by an embodiment of the present invention.

[0029] Figure 2 A flowchart of a method for operating a safety level display device for a nuclear power plant provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0031] Example 1

[0032] like Figure 1 As shown, an embodiment of the present invention provides an operating system for a safety-level display device of a nuclear power plant, including: a touch screen enabling module and an independent key enabling module;

[0033] The touch screen enabling module is used to control the touch screen to enable in response to the control signal of the enabling switch, and to receive the touch control signal through the touch screen to control the safety-level display device of the nuclear power plant by the touch control signal.

[0034] By constructing a touch screen enabling module, the embodiment of the present invention can control the enabling of the touch screen in the form of physical hardware. For example, when the enabling switch is turned off, the control power of the touch screen can be turned on, so that the touch screen can be used. Therefore, the problem that the touch screen may cause erroneous operation due to enabling control of the touch screen by software is solved, and the reliability and availability of the security-level display terminal are improved.

[0035] The independent key enabling module is used to respond to the control signal of the independent key and realize the control of the safety level display device of the nuclear power plant through the control signal.

[0036] The embodiment of the present invention constructs an independent button enabling module, which can enable staff to customize operating functions on the one hand, and can form a redundant architecture with the touch screen enabling module on the other hand. When the touch screen fails, it can provide operating functions for the nuclear power plant safety-level display device, thereby avoiding the problem of inoperability caused by touch screen failure.

[0037] In a possible implementation, the touch screen enabling module includes a power isolator, an electrical controller, an enabling switch, a touch screen controller, a filter, and a touch screen;

[0038] The power isolator is used to isolate the power supply between the control end and the controlled end of the electric controller, the enabling switch is arranged on the control end, and the touch screen controller is arranged on the controlled end of the electric controller; and when the enabling switch is turned off, the controlled end of the electric controller is turned on, so that the touch screen controller is connected to the power supply on the controlled end; when the enabling switch is turned off, the controlled end of the electric controller is disconnected, so that the touch screen controller is disconnected from the power supply on the controlled end;

[0039] The touch screen controller is connected to the touch screen through a filter to receive a touch control signal through the touch screen, collect the touch control signal through the touch screen controller, and transmit the touch control signal to a processor of the nuclear power plant safety-level display device for control.

[0040] In order to enable those skilled in the art to understand the specific working principle of the touch screen enabling module provided by the embodiment of the present invention, the touch screen enabling module is described in detail by way of example. For example, the electric controller can be set as a relay, and a driving power supply needs to be connected to the control end of the relay to control the on and off of the execution end of the relay. Therefore, the enabling switch can be set on the control end of the relay. When the enabling switch is closed, the driving power supply on the control end of the relay is turned on, which can drive the execution end of the relay to be connected, so that the touch screen power supply on the execution end of the relay is connected to the touch screen controller, and the touch screen can be used normally.

[0041] It is worth noting that the above specific control method is only an example of the embodiment of the present invention, and other devices can also be used to achieve similar or identical functions.

[0042] In a possible implementation, the electrical controller is configured as a PhotoMOS (MOSFET output photocoupler).

[0043] A MOSFET output optocoupler is a component that integrates a MOSFET (metal-oxide-semiconductor field-effect transistor) output with an optocoupler. This component is commonly used in electronic switching and isolation applications, especially in scenarios where high voltage or high current isolation is required. An optocoupler typically contains a light-emitting diode (LED) and a phototransistor (or photoMOSFET), which are connected via an optical path to achieve isolation between the input and output. When the input end (light-emitting diode) receives an electrical signal, the LED emits light, and the optical signal is transmitted to the output end (phototransistor or photoMOSFET) through the optical path, turning it on, thereby generating a corresponding electrical signal at the output end.

[0044] In addition to setting the electric controller to PhotoMOS, the electric controller can also be set to an ordinary relay. It is only necessary to ensure that the enabling switch can control the on and off between the touch screen controller and the touch screen power supply. That is, when the enabling switch is turned on, the electric controller needs to be turned on or off; and when the enabling switch is turned off, the electric controller needs to be turned off or on; thereby avoiding accidental touching of the touch screen.

[0045] In a possible implementation, the filter is used to perform common mode filtering, EMI filtering and ESD protection on the signal generated by the touch screen.

[0046] Common-mode filtering is an electronic filtering technique used to suppress common-mode noise in signals. Common-mode noise refers to the noise signal appearing at both input ends of a circuit (for example, the input end of a signal and the ground or positive line), while the signal itself has a potential difference between the two input ends. Common-mode filters are usually included in analog signal processing paths, especially in differential signal transmission applications. Differential signals refer to two signals that are transmitted through the same signal path, and the amplitudes of the two signals are equal but the polarities are opposite. Differential signals can effectively resist common-mode noise because the effects of common-mode noise on the two signals are the same and therefore canceled out. Common-mode filters can be designed in a variety of ways, including passive components (such as capacitors and inductors) and active components (such as operational amplifiers). These components are combined to form a band-stop filter that blocks common-mode noise within a specific frequency range while allowing differential signals to pass.

[0047] EMI filtering (Electromagnetic Interference Filtering) refers to the process of using filters to reduce electromagnetic interference (EMI). Electromagnetic interference refers to the interference of the electromagnetic field generated by electronic devices on the normal operation of other electronic devices. EMI filters are usually used on power lines and signal lines to prevent the generation and propagation of interference. The working principle of EMI filters is based on impedance matching and the characteristics of capacitors and inductors. They can suppress high-frequency noise and prevent it from interfering with sensitive electronic circuits. EMI filters usually contain capacitors and inductors, which work together to provide a specific frequency response to effectively suppress EMI.

[0048] Anti-ESD (Electrostatic Discharge) treatment refers to a series of measures and design methods taken to protect electronic devices from the effects of electrostatic discharge (ESD). ESD is a charge discharge phenomenon caused by the imbalance of charge when two objects of different materials or charge states come into contact. ESD events may damage sensitive circuits of electronic devices, causing performance degradation or complete failure.

[0049] Therefore, the embodiment of the present invention performs common mode filtering, EMI filtering and ESD protection processing on the signal generated by the touch screen, thereby ensuring effective signal collection.

[0050] In a possible implementation, the touch screen is configured as a four-wire resistive touch screen.

[0051] The four-wire resistive touch screen consists of a transparent conductive layer (usually made of indium tin oxide ITO) covered on a glass or plastic substrate. This conductive layer is divided into many small cells, each of which consists of four thin wires, corresponding to the X and Y axis signals and a common ground line. When the user touches the screen, the resistance of the cell where the touch point is located will change, thereby changing the resistance value of the X and Y axis signals at that point. By measuring the changes in these two signals, the position of the touch point can be determined.

[0052] The advantages of four-wire resistive touch screens include relatively low cost, simple manufacturing process, relatively accurate positioning of touch points, and certain requirements for touch strength. Therefore, false touches can be effectively avoided, improving the reliability and availability of safety-grade display terminals.

[0053] In a possible implementation manner, the independent key includes a plurality of independent keys and an independent key acquisition unit;

[0054] The independent key acquisition units are respectively connected to a plurality of independent keys, and are used for filtering, de-jittering and acquiring independent key signals, and transmitting the acquired independent key signals to the processor of the safety-level display device of the nuclear power plant for control.

[0055] The independent button in the embodiment of the present invention can be set to one or more, but generally multiple independent buttons are required to complete the operation of the display device, such as the operation buttons on a computer display screen, which can complete the setting of the display screen.

[0056] In a possible implementation, it also includes: a signal isolator U3 and a processor;

[0057] The signal isolator U3 is used to transmit the signal collected by the touch screen controller to the processor using capacitive isolation technology or magnetic isolation technology;

[0058] Isolation Technology is a technology used in circuit design to achieve electrical isolation between circuits to improve safety, reliability and performance. This technology is often used in applications such as power conversion, signal isolation, and electrical interference suppression. The key to isolation technology is that it can provide a physical or electrical method to prevent or limit the direct flow of current between two or more circuits while allowing the transmission of signals or energy.

[0059] Magnetic isolation technology is a technology that uses magnetic fields to achieve circuit isolation. This technology is often used in applications such as power conversion, signal isolation, and electrical interference suppression to improve circuit safety, reliability, and performance.

[0060] Therefore, the embodiments of the present invention use capacitive isolation technology or magnetic isolation technology to perform signal isolation, which can effectively improve the safety and reliability of the touch circuit.

[0061] The processor is used to operate the safety-level display device of the nuclear power plant according to the signal collected by the touch screen controller.

[0062] In a possible implementation, a signal isolator U4 is also included;

[0063] The signal isolator U4 is used to transmit the key signal collected by the independent key collection unit to the processor by using optical isolation technology, capacitive isolation technology or magnetic isolation technology;

[0064] The processor is also used to operate the safety level display device of the nuclear power plant according to the key signal.

[0065] The invention provides an operating system for a safety-level display device in a nuclear power plant. The method of controlling the power supply of the touch screen and the touch screen controller by hardware completes the enabling of the touch screen. Compared with software enabling control, it can avoid the risk of misoperation caused by software failure, thereby improving the reliability and safety of the safety-level display device. At the same time, redundant independent buttons are set for the touch screen, and redundant operating equipment can be provided when the touch screen fails, thereby avoiding the loss of the operating function of the safety-level display device and improving its availability.

[0066] Example 2

[0067] This embodiment is a further example based on Embodiment 1, and the specific principles are as follows.

[0068] like Figure 1 As shown, the present embodiment provides an operating system for a safety-level display device for a nuclear power plant, comprising a power isolator, an electrical controller, an enable switch, a touch screen controller, a filter, a touch screen, a signal isolator, an independent key acquisition unit, and independent keys. The power isolator is used to isolate the system power supply and the power supply of human-machine input devices such as the touch screen and independent keys and their control acquisition units. The electrical control device is a relay (such as PhotoMOS), which is used to control the switching of the power supply of the touch screen controller and other units through different states of the enable switch. The touch screen controller is used to complete the collection and digital processing of the touch screen click coordinate information. The touch screen is preferably a resistive touch screen to improve the anti-interference ability in complex industrial environments. The filter completes the common mode filtering, EMI filtering and anti-ESD processing of the touch screen.

[0069] When the touch screen needs to be operated, the touch screen controller, touch screen and other parts are powered on through the touch screen enable switch to achieve the purpose of touch screen hardware enablement, and the touch screen works normally. The touch screen controller regularly queries whether the touch screen has a touch signal. When the touch screen is operated, the touch screen controller collects the voltage signals of the X-axis and Y-axis in sequence through the excitation signal, and completes the conversion of the analog voltage signal to the digital signal. The converted digital signal is sent to the processor through the signal isolator.

[0070] When the touch screen does not need to be operated, or the touch screen needs to be turned off to prevent misoperation, the touch screen enable switch is turned off to turn off the power supply of the touch screen controller, touch screen and other related units to achieve the purpose of disabling the touch screen.

[0071] In order to avoid failure of the touch screen and loss of the operating function of the entire safety-level display device when operation is required, the present invention provides a certain number of independent buttons on both sides of the touch screen.

[0072] Independent buttons and touch screens are redundant in function. All operation functions can be realized through independent buttons, touch screens, or a combination of independent buttons and touch screens. The functions of independent buttons and touch screens on different pages can be configured through configuration tools.

[0073] The independent key completes signal acquisition through the independent key acquisition unit and sends it to the processor after passing through the signal isolator.

[0074] The power isolator U1 is used to isolate the system power supply from the touch screen, independent buttons and other human input devices and their control acquisition unit power supply. In this embodiment, the isolation of VCC and VCC_ISO is completed, and VCC takes +3.3V.

[0075] In this embodiment, the electric controller U2 selects PhotoMOS with a faster response time. When the enable switch KEY1 is turned off, no current flows through the light-emitting diode at the control end of U2, VCC_ISO_EN is disconnected from VCC_ISO, the touch screen controller and the touch screen stop working due to lack of power, and the touch screen is in a disabled state. When the enable switch KEY1 is closed, current flows through the light-emitting diode at the control end of U2, VCC_ISO_EN is turned on from VCC_ISO, the touch screen controller and the touch screen start working, and the touch screen is in an enabled state.

[0076] In a possible implementation manner, the enabling switch KEY1 is a hardware self-locking switch.

[0077] A Hardware Locking Switch is a mechanical or electronic switch that, when activated or switched to a certain position, "locks" or remains in that state until another action unlocks or resets it. This type of switch is very useful in many applications, especially where accidental or unauthorized changes of state need to be prevented.

[0078] Therefore, the enabling switch KEY1 in the embodiment of the present invention adopts a hardware self-locking switch, which can effectively avoid the erroneous enabling of the touch screen and improve the reliability and availability of the security-level display terminal.

[0079] In a possible implementation, the filter filters out common-mode interference signals through common-mode inductors, implements ESD protection through a TVS array, and implements filtering of high-frequency electromagnetic interference through a low-pass filter.

[0080] In a possible implementation, the touch screen signal passes through a TVS array, a common mode filter, and a low-pass filter (ie, an EMI filter) in sequence before reaching a touch screen controller.

[0081] TVS array (Transient Voltage Suppressor Array) is an electronic protection component, an array of multiple transient voltage suppressors (TVS). Transient voltage suppressors are nonlinear semiconductor devices that are mainly used to protect electronic equipment from voltage spikes or surges. When the voltage exceeds the breakdown voltage of the device, the TVS will quickly turn on and conduct the overvoltage to the ground, thereby protecting the connected circuit from damage.

[0082] In a possible implementation, the touch screen is a four-wire resistive touch screen.

[0083] The touch screen controller is used to complete the acquisition and digital processing of the touch screen click coordinate information. The touch screen controller regularly queries whether the touch screen has a touch signal. When the touch screen is operated, the touch screen controller collects the voltage signals of the X-axis and Y-axis in turn through the excitation signal, and completes the conversion of the analog voltage signal to the digital signal. The converted digital signal is sent to the processor through the signal isolator U3.

[0084] In a possible implementation, the signal isolator U3 uses one or more capacitive isolation technology and magnetic isolation technology chips depending on the number of signals.

[0085] In this embodiment, there are 16 independent buttons on both sides of the touch screen, 8 on each side are evenly distributed within the visual height range of the screen. However, it should be noted that the specific data described in this embodiment are all examples, and other numbers of buttons can also be used to achieve similar functions.

[0086] In a possible implementation manner, the independent button is a light-touch button.

[0087] The independent key acquisition unit completes filtering, de-jittering, acquisition, encoding, etc. of the independent key signal, and the processed key signal is sent to the processor via the signal isolator U4.

[0088] A touch button is an electronic switch that switches on and off by applying force to the metal spring inside. When the user presses the button lightly, the switch is turned on, and when the user releases it, the switch is disconnected. The touch button uses a micro switch, which, based on the physical structure, can effectively avoid false triggering of the button signal in complex environments such as high temperature, high humidity, vibration, and electromagnetic. The touch button has the advantages of small size, light weight, and high reliability, and is widely used in high-reliability application fields such as industrial control and rail transportation.

[0089] Therefore, the embodiment of the present invention adopts a light-touch button as an independent button, which can provide operations that are completely different from the touch screen in terms of technical principles and technical routes while ensuring its convenience of use. The two have significant differences in technical characteristics and failure mechanisms, forming a redundant operation architecture with diverse in-depth defense.

[0090] In a possible implementation, the signal isolator U4 uses one or more optical isolation technology, capacitive isolation technology, or magnetic isolation technology chips.

[0091] Independent buttons and touch screens are redundant in function. All operation functions can be realized through independent buttons, touch screens, or a combination of independent buttons and touch screens. The functions of independent buttons and touch screens on different pages can be configured through configuration tools.

[0092] During the initial configuration, the configuration tool is used to complete the configuration of independent buttons and touch screens for the functions that need to be operated on each page. This configuration is downloaded to the main processor of the safety-level display device together with other graphic configuration files, variable configuration files, etc. During normal operation, the user can use the touch screen or independent buttons to complete the operation of the functional blocks or devices that need to be operated.

[0093] Before operating the touch screen, you need to enable the touch screen through the enable switch KEY1.

[0094] When the touch screen does not need to be operated, or the touch screen needs to be turned off to prevent misoperation, the touch screen is prohibited from being operated by turning off the enable switch KEY1.

[0095] It is worth noting that the selection of each device in the embodiment of the present invention is only used as a preferred implementation method. When implementing the specific implementation plan, those skilled in the art can also use other types of devices to achieve the same or similar functions. These basic changes are all within the scope of protection of the present invention.

[0096] Example 3

[0097] like Figure 2 As shown, the present invention provides a method for operating a safety level display device of a nuclear power plant, comprising:

[0098] S101, in response to a control signal of an enabling switch, controlling the touch screen to enable, and receiving a touch control signal through the touch screen, so as to control the safety-level display device of a nuclear power plant by the touch control signal;

[0099] S102, when the touch screen does not respond, respond to the control signal of the independent key, and control the safety-level display device of the nuclear power plant through the control signal.

[0100] In a possible implementation manner, the enabling switch is arranged on a power circuit of a touch screen controller corresponding to the touch screen.

[0101] The method for operating a nuclear power plant safety level display device provided in this embodiment is applied to the operating system of the nuclear power plant safety level display device described in Example 1 or Example 2, and its beneficial effects and principles are similar and will not be repeated here.

[0102] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes. The schemes in the embodiments of the present invention may be implemented in various computer languages, for example, object-oriented programming language Java and literal scripting language JavaScript, etc.

[0103] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0104] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0105] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0106] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0107] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A safety-level display device operating system for a nuclear power plant, It is characterized in that include: Touch screen enabling module and independent button enabling module; The touch screen enabling module is used to control the touch screen to enable in response to the control signal of the enabling switch, and to receive the touch control signal through the touch screen to control the safety-level display device of the nuclear power plant by the touch control signal. The independent key enabling module is used to respond to the control signal of the independent key and realize the control of the safety level display device of the nuclear power plant through the control signal.

2. The operating system for the safety-level display device of a nuclear power plant according to claim 1, It is characterized in that The touch screen enabling module includes a power isolator, an electrical controller, an enabling switch, a touch screen controller, a filter and a touch screen; The power isolator is used to isolate the power supply between the control end and the controlled end of the electric controller, the enabling switch is arranged on the control end, and the touch screen controller is arranged on the controlled end of the electric controller; and when the enabling switch is turned off, the controlled end of the electric controller is turned on, so that the touch screen controller is connected to the power supply on the controlled end; when the enabling switch is turned off, the controlled end of the electric controller is disconnected, so that the touch screen controller is disconnected from the power supply on the controlled end; The touch screen controller is connected to the touch screen through a filter to receive a touch control signal through the touch screen, collect the touch control signal through the touch screen controller, and transmit the touch control signal to the processor of the nuclear power plant safety-level display device for control.

3. The operating system for the safety-level display device of a nuclear power plant according to claim 2, It is characterized in that The electrical controller is configured as a PhotoMOS.

4. The operating system for the safety-level display device of a nuclear power plant according to claim 2, It is characterized in that The filter is used to perform common mode filtering, EMI filtering and ESD protection on the signal generated by the touch screen.

5. The operating system of the safety-level display device of a nuclear power plant according to claim 2, It is characterized in that The touch screen is configured as a four-wire resistive touch screen.

6. The operating system of the safety-level display device of a nuclear power plant according to claim 2, It is characterized in that The independent key enabling module includes a plurality of independent keys and an independent key acquisition unit; The independent key acquisition units are respectively connected to a plurality of independent keys, and are used for filtering, de-jittering and acquiring independent key signals, and transmitting the acquired independent key signals to the processor of the safety-level display device of the nuclear power plant for control.

7. The operating system for the safety-level display device of a nuclear power plant according to claim 6, It is characterized in that Also includes: Signal isolator U3 and processor; The signal isolator U3 is used to transmit the signal collected by the touch screen controller to the processor using capacitive isolation technology or magnetic isolation technology; The processor is used to operate the safety-level display device of the nuclear power plant according to the signal collected by the touch screen controller.

8. The operating system for the safety-level display device of a nuclear power plant according to claim 7, It is characterized in that Also included is a signal isolator U4; The signal isolator U4 is used to transmit the key signal collected by the independent key collection unit to the processor by using optical isolation technology, capacitive isolation technology or magnetic isolation technology; The processor is also used to operate the safety level display device of the nuclear power plant according to the key signal.

9. A method for operating a safety level display device of a nuclear power plant, It is characterized in that include: In response to the control signal of the enable switch, the touch screen is controlled to be enabled, and the touch control signal is received through the touch screen to realize the control of the safety-level display device of the nuclear power plant by the touch control signal; When the touch screen is unresponsive, it responds to the control signal of the independent key, and controls the safety-level display device of the nuclear power plant through the control signal.

10. The method for operating the safety level display device of a nuclear power plant according to claim 9, It is characterized in that The enabling switch is arranged on a power circuit of a touch screen controller corresponding to the touch screen.

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