阅读说明：本技术 核电厂反应堆保护和监测系统响应时间测量装置及方法 (Nuclear power plant reactor protection and monitoring system response time measuring device and method ) 是由 刘强 傅长根 张丰平 赵立东 何凡帆 金跃明 付智琦 于 2020-11-25 设计创作，主要内容包括：本发明实施例提供一种核电厂反应堆保护和监测系统响应时间测量装置及方法,所述装置包括：上位机、通讯转换输出单元、仪表信号模拟输出单元、核测信号模拟输出单元、专设安全驱动反馈信号模拟输出单元、时间采集处理单元、系统机柜模拟单元、系统机柜、专设安全设施驱动接口单元,通过上述单元连接构成核电厂反应堆保护和监测系统响应时间测量装置。本装置采用脚本形式自动化测试,提高了测试效率；通过测量装置可以自动模拟信号,自动采集时间和计算,避免了数据记录仪中数据的人工处理和计算,避免了人为数据处理和计算时引入的误差和失误,提高了响应时间测试的精度和成功率。(The embodiment of the invention provides a device and a method for measuring the response time of a nuclear power plant reactor protection and monitoring system, wherein the device comprises: the device comprises an upper computer, a communication conversion output unit, an instrument signal analog output unit, a nuclear test signal analog output unit, a special safety drive feedback signal analog output unit, a time acquisition processing unit, a system cabinet analog unit, a system cabinet and a special safety facility drive interface unit, and the units are connected to form a nuclear power plant reactor protection and monitoring system response time measuring device. The device adopts a script form for automatic testing, so that the testing efficiency is improved; the measuring device can automatically simulate signals, automatically acquire time and calculate, avoid manual processing and calculation of data in the data recorder, avoid errors and errors caused by manual data processing and calculation, and improve the precision and success rate of response time testing.)

1. A nuclear power plant reactor protection and monitoring system response time measuring device, comprising: an upper computer, a communication conversion output unit, an instrument signal analog output unit, a nuclear test signal analog output unit, a special safety drive feedback signal analog output unit, a time acquisition processing unit, a system cabinet analog unit, a system cabinet and a special safety facility drive interface unit, wherein,

the upper computer is respectively connected with the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit through a switch, and is used for sending a control command to the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit and the special safety drive feedback signal analog output unit and receiving a response time value sent by the time acquisition processing unit;

the communication conversion output unit is connected with the system cabinet simulation unit and the system cabinet, and is used for receiving the control instruction sent by the upper computer, converting the control instruction into a corresponding identifiable signal and sending the identifiable signal to the system cabinet simulation unit and the system cabinet;

the instrument signal analog output unit is connected with the system cabinet and used for receiving the control instruction sent by the upper computer, processing the control instruction through corresponding software and a clamping piece and outputting a corresponding signal to the system cabinet;

the nuclear measurement signal analog output unit is connected with the system cabinet and used for receiving the control instruction sent by the upper computer, processing the control instruction through a function generator, obtaining a corresponding signal and sending the signal to the system cabinet;

the special safety driving feedback signal simulation output unit is used for receiving the control instruction sent by the upper computer, simulating a feedback signal of special safety facility driving equipment and sending the feedback signal to the special safety facility driving interface unit;

the time acquisition processing unit is connected with the system cabinet simulation unit and the special safety facility driving interface unit, and is used for processing a timing starting instruction sent by the upper computer and a timing ending instruction sent by the system cabinet simulation unit and the special safety facility driving interface unit, calculating the response time value through the timing starting instruction and the timing ending instruction, and feeding the response time value back to the upper computer;

the system cabinet simulation unit is used for receiving the identifiable signal sent by the communication conversion output unit, sending the identifiable signal to the system cabinet, receiving the communication signal fed back by the system cabinet, and outputting the communication signal to the time acquisition processing unit as the timing ending instruction.

2. A power plant reactor protection and monitoring system response time measuring device as claimed in claim 1, further comprising:

the system comprises 4 system cabinets, a communication conversion output unit, an instrument signal analog output unit, a special safety drive feedback signal analog output unit and a time acquisition processing unit, wherein the communication conversion output unit, the instrument signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit are arranged in the two system cabinets, the nuclear test signal analog output unit is arranged in 1 system cabinet, and the system cabinet analog unit is arranged in 1 system cabinet.

3. A method for measuring response time of a nuclear power plant reactor protection and monitoring system, comprising:

the upper computer executes the script and sends a control instruction to the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit;

the communication conversion output unit obtains a corresponding identifiable signal according to the control instruction and sends the identifiable signal to a system cabinet simulation unit and a system cabinet, the instrument signal simulation output unit and the nuclear test signal simulation output unit perform corresponding processing according to the control instruction to obtain a corresponding signal and send the corresponding signal to the system cabinet, the special safety drive feedback signal simulation output unit simulates a feedback signal of special safety facility driving equipment according to the control instruction and sends the feedback signal to a special safety facility drive interface unit, and the time acquisition processing unit starts timing according to the control instruction and records the timing as a starting moment;

the system cabinet processes corresponding signals transmitted by the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit and the system cabinet analog unit, performs preset operation on a processing result, and sends a budget result to the special safety facility driving interface unit;

the special safety facility driving interface unit obtains a corresponding driving signal according to the budget result, and sends the driving signal to the time acquisition and processing unit, and the time acquisition and processing unit stops timing according to the driving signal and records the timing as an end time;

calculating a response time value according to the starting time and the ending time, and comparing the response time value with a preset acceptance criterion;

and when the response time value is smaller than the acceptance criterion, outputting a result of qualified test.

4. The nuclear power plant reactor protection and monitoring system response time measurement method of claim 3, further comprising:

the upper computer executes the test script and sends a test instruction to the instrument signal analog output unit, the nuclear test signal analog output unit and the time acquisition and processing unit;

the instrument signal analog output unit or the nuclear test signal analog output unit changes an instrument signal and sends the instrument signal to the system cabinet;

the time acquisition and processing unit starts timing and records as a second starting moment;

the system cabinet processes corresponding signals sent by the communication conversion output unit, the instrument signal analog output unit and the nuclear test signal analog output unit, and sends processing results to the system cabinet analog unit;

the system cabinet simulation unit obtains a driving signal according to the processing result, sends the driving signal to the time acquisition and processing unit, stops timing and marks the timing as a second ending moment;

calculating to obtain a second response time value through the second starting time and the second ending time, and comparing the second response time value with a preset acceptance criterion;

and when the second response time value is smaller than the acceptance criterion, outputting a result of qualified test.

Technical Field

The invention relates to the technical field of performance monitoring of a nuclear power plant reactor protection and monitoring system, in particular to a device and a method for measuring response time of the nuclear power plant reactor protection and monitoring system.

Background

The nuclear power plant reactor protection and monitoring system adopts a 1E-level digital instrument control system, generally consists of four redundant sequences, receives instrument signals, carries out conversion processing and set value comparison, generates corresponding protection action signals through logical processing, triggers a reactor shutdown circuit breaker or a special safety facility to act, and realizes the reactor protection function. According to the requirements of the technical specifications of the nuclear power plant, in order to ensure that the protection and monitoring system of the nuclear power plant reactor can realize the protection action function in the expected time, the response time of the protection and monitoring system needs to be tested so as to verify that the response time is within the time limit specified by the final safety analysis report of the nuclear power plant. The test is manually completed by personnel in the past, a signal generator, a test related cable and a data recorder are required to be configured, the signal generator simulates an instrument signal, the data recorder records the change time T1 of the simulated instrument signal and the action time T2 of a reactor shutdown breaker or a special safety facility drive interface device, and finally the time T = T2-T1 is calculated, namely the response time of one channel of the reactor protection and monitoring system. A large number of cables need to be configured in the whole testing process, a large amount of labor and time are consumed, the testing efficiency is extremely low, and meanwhile, the testing method is not beneficial to testing the response time of signals between reactor protection and monitoring system sequences and the response time of a nuclear neutron measurement system.

Therefore, in order to solve the problems of the conventional measurement methods, it is necessary to design a simple and efficient method for measuring the response time of the protection and monitoring system and a set of device for measuring the response time, so as to perform the simulation of the instrument signal and the acquisition of the reactor shutdown signal or the special safety driving signal in an automatic manner, and finally calculate the response time of the system, thereby improving the test efficiency and reducing the equipment damage caused by human errors.

Disclosure of Invention

Aiming at the problems in the prior art, the embodiment of the invention provides a device and a method for measuring the response time of a nuclear power plant reactor protection and monitoring system.

The embodiment of the invention provides a regulating device of a vehicle headlamp, which comprises: an upper computer, a communication conversion output unit, an instrument signal analog output unit, a nuclear test signal analog output unit, a special safety drive feedback signal analog output unit, a time acquisition processing unit, a system cabinet analog unit, a system cabinet and a special safety facility drive interface unit, wherein,

the upper computer is respectively connected with the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit through a switch, and is used for sending a control command to the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit and the special safety drive feedback signal analog output unit and receiving a response time value sent by the time acquisition processing unit;

the communication conversion output unit is connected with the system cabinet simulation unit and the system cabinet, and is used for receiving the control instruction sent by the upper computer, converting the control instruction into a corresponding identifiable signal and sending the identifiable signal to the system cabinet simulation unit and the system cabinet;

the instrument signal analog output unit is connected with the system cabinet and used for receiving the control instruction sent by the upper computer, processing the control instruction through corresponding software and a clamping piece and outputting a corresponding signal to the system cabinet;

the nuclear measurement signal analog output unit is connected with the system cabinet and used for receiving the control instruction sent by the upper computer, processing the control instruction through a function generator, obtaining a corresponding signal and sending the signal to the system cabinet;

the special safety driving feedback signal simulation output unit is used for receiving the control instruction sent by the upper computer, simulating a feedback signal of special safety facility driving equipment and sending the feedback signal to the special safety facility driving interface unit;

the time acquisition processing unit is connected with the system cabinet simulation unit and the special safety facility driving interface unit, and is used for processing a timing starting instruction sent by the upper computer and a timing ending instruction sent by the system cabinet simulation unit and the special safety facility driving interface unit, calculating the response time value through the timing starting instruction and the timing ending instruction, and feeding the response time value back to the upper computer;

the system cabinet simulation unit is used for receiving the identifiable signal sent by the communication conversion output unit, sending the identifiable signal to the system cabinet, receiving the communication signal fed back by the system cabinet, and outputting the communication signal to the time acquisition processing unit as the timing ending instruction.

In one embodiment, the apparatus further comprises:

the system comprises 4 system cabinets, a communication conversion output unit, an instrument signal analog output unit, a special safety drive feedback signal analog output unit and a time acquisition processing unit, wherein the communication conversion output unit, the instrument signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit are arranged in the two system cabinets, the nuclear test signal analog output unit is arranged in 1 system cabinet, and the system cabinet analog unit is arranged in 1 system cabinet.

The embodiment of the invention provides a method for adjusting a vehicle headlamp, which comprises the following steps:

the upper computer executes the script and sends a control instruction to the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit;

the communication conversion output unit obtains a corresponding identifiable signal according to the control instruction and sends the identifiable signal to a system cabinet simulation unit and a system cabinet, the instrument signal simulation output unit and the nuclear test signal simulation output unit perform corresponding processing according to the control instruction to obtain a corresponding signal and send the corresponding signal to the system cabinet, the special safety drive feedback signal simulation output unit simulates a feedback signal of special safety facility driving equipment according to the control instruction and sends the feedback signal to a special safety facility drive interface unit, and the time acquisition processing unit starts timing according to the control instruction and records the timing as a starting moment;

the system cabinet processes corresponding signals transmitted by the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit and the system cabinet analog unit, performs preset operation on a processing result, and sends a budget result to the special safety facility driving interface unit;

the special safety facility driving interface unit obtains a corresponding driving signal according to the budget result, and sends the driving signal to the time acquisition and processing unit, and the time acquisition and processing unit stops timing according to the driving signal and records the timing as an end time;

calculating a response time value according to the starting time and the ending time, and comparing the response time value with a preset acceptance criterion;

and when the response time value is smaller than the acceptance criterion, outputting a result of qualified test.

In one embodiment, the method further comprises:

the upper computer executes the test script and sends a test instruction to the instrument signal analog output unit, the nuclear test signal analog output unit and the time acquisition and processing unit;

the instrument signal analog output unit or the nuclear test signal analog output unit changes an instrument signal and sends the instrument signal to the system cabinet;

the time acquisition and processing unit starts timing and records as a second starting moment;

the system cabinet processes corresponding signals sent by the communication conversion output unit, the instrument signal analog output unit and the nuclear test signal analog output unit, and sends processing results to the system cabinet analog unit;

the system cabinet simulation unit obtains a driving signal according to the processing result, sends the driving signal to the time acquisition and processing unit, stops timing and marks the timing as a second ending moment;

calculating to obtain a second response time value through the second starting time and the second ending time, and comparing the second response time value with a preset acceptance criterion;

and when the second response time value is smaller than the acceptance criterion, outputting a result of qualified test.

The device and the method for measuring the response time of the nuclear power plant reactor protection and monitoring system have the following beneficial effects: according to the device and the method for measuring the response time of the nuclear power plant reactor protection and monitoring system, a script form is adopted for automatic testing, so that the testing efficiency is improved; the measuring device can automatically simulate signals, automatically acquire time and calculate, avoid manual processing and calculation of data in the data recorder, avoid errors and errors caused by manual data processing and calculation, and improve the precision and success rate of response time testing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a block diagram of a nuclear power plant reactor protection and monitoring system response time measurement device in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a response time measuring apparatus of a nuclear power plant reactor protection and monitoring system according to an embodiment of the present invention includes: the system comprises an upper computer, a communication conversion output unit, an instrument signal analog output unit, a nuclear test signal analog output unit, a special safety drive feedback signal analog output unit, a time acquisition processing unit, a system cabinet analog unit, a system cabinet and a special safety facility drive interface unit.

Specifically, the communication conversion unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit are packaged in a designed system cabinet, and corresponding connection interfaces are reserved.

The control and display upper computer is respectively connected with the communication conversion unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit through the switch; the control and display upper computer is used for sending a control operation instruction to a corresponding output unit; the upper computer is controlled and displayed to receive and display the response time value from the time acquisition and processing unit; and controlling and displaying the running software of the upper computer, automatically running step by step in a script mode and sending corresponding instructions.

The communication conversion output unit is connected with the reactor protection and monitoring system cabinet simulation unit and the reactor protection and monitoring system cabinet; the communication conversion output unit is used for receiving a control instruction for controlling and displaying the upper computer, converting the control instruction into a signal which can be identified by the protection and monitoring system and sending the signal to the reactor protection and monitoring system cabinet simulation unit and the reactor protection and monitoring system cabinet.

The instrument signal analog output unit is connected with a reactor protection and monitoring system cabinet; the instrument signal simulation output unit is used for receiving a control instruction for controlling and displaying the upper computer, processing the control instruction through software and a clamping piece in the unit and outputting a corresponding signal to a reactor protection and monitoring system cabinet; the instrument signal analog output unit outputs standard 1-10V voltage signals, 4-20mA current signals, millivolt level voltage signals for analog temperature, digital quantity signals and pulse signals.

The nuclear detection signal analog output unit is connected with a reactor protection and monitoring system cabinet; the nuclear measurement signal analog output unit is used for receiving a control instruction for controlling and displaying the upper computer, processing the control instruction through a function generator and outputting a corresponding signal to a nuclear measurement processing clamping piece of a reactor protection and monitoring system cabinet; the nuclear detection signal analog output unit outputs a positive sine wave and a 4-20mA current signal so as to simulate a signal of a nuclear detection detector.

The special safety driving feedback signal analog output unit is connected with a shutdown circuit breaker or a special safety facility driving interface unit; the special safety driving feedback signal simulation output unit is used for receiving a control instruction for controlling and displaying the upper computer and simulating a feedback signal of special safety facility driving equipment so as to realize that the equipment state automatically changes along with the control instruction; the special safety driving feedback signal analog output unit outputs a digital quantity signal.

The time acquisition and processing unit is connected with a reactor protection and monitoring system cabinet simulation unit and a shutdown circuit breaker or a special safety facility driving interface unit; the time acquisition and processing unit is used for receiving a timing starting instruction for controlling and displaying the upper computer, a timing ending instruction for the reactor protection and monitoring system cabinet simulation unit and the shutdown breaker or the special safety facility driving interface unit, calculating time and feeding back the time to the control and display upper computer; the time acquisition processing unit consists of a time acquisition processing clamping piece.

The reactor protection and monitoring system cabinet simulation unit is used for receiving a communication instruction of the communication conversion single output unit and outputting a communication signal to the reactor protection and monitoring system cabinet; the reactor protection and monitoring system cabinet simulation unit is used for receiving communication signals of the reactor protection and monitoring system cabinet and outputting digital quantity signals to the time acquisition and processing unit as timing ending instructions.

The number of the reactor protection and monitoring system response time measuring device cabinets is four; the nuclear power plant reactor protection and monitoring system comprises a communication conversion single output unit, an instrument signal analog output unit, a special safety drive feedback signal analog output unit and a time acquisition processing unit, wherein the communication conversion single output unit, the instrument signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit are arranged in two cabinets, the nuclear power plant test signal analog output unit is arranged in one cabinet, and the reactor protection and monitoring system cabinet analog unit is arranged in one cabinet.

In the implementation, the invention provides a device for measuring the response time of a nuclear power plant reactor protection and monitoring system, and the device and the method for measuring the response time of the nuclear power plant reactor protection and monitoring system adopt a script form for automatic test, so that the test efficiency is improved; the measuring device can automatically simulate signals, automatically acquire time and calculate, avoid manual processing and calculation of data in the data recorder, avoid errors and errors caused by manual data processing and calculation, and improve the precision and success rate of response time testing.

The method for measuring the response time of the nuclear power plant reactor protection and monitoring system provided by the embodiment of the invention comprises the following steps:

and S201, the upper computer executes the script and sends a control instruction to the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit.

Specifically, the upper computer is controlled and displayed to execute the general script, and the general script sends instructions to the communication conversion single output unit, the instrument signal analog output unit and the nuclear test signal analog output unit to establish system working conditions required by the response time test of the reactor protection and monitoring system.

S202, the communication conversion output unit obtains corresponding identifiable signals according to the control instruction and sends the identifiable signals to a system cabinet simulation unit and a system cabinet, the instrument signal simulation output unit and the nuclear test signal simulation output unit perform corresponding processing according to the control instruction to obtain corresponding signals and send the corresponding signals to the system cabinet, the special safety drive feedback signal simulation output unit simulates feedback signals of special safety facility driving equipment according to the control instruction and sends the feedback signals to a special safety facility driving interface unit, and the time collection processing unit starts timing according to the control instruction and records the timing as a starting time.

Specifically, the upper computer is controlled and displayed to execute the test script, and the command is sent to the communication conversion single output unit, the instrument signal analog output unit, the nuclear test signal analog output unit, the special safety drive feedback signal analog output unit and the time acquisition processing unit to carry out response time test. The communication conversion single output unit outputs a redundant sequence trigger signal of the protection and monitoring system to a reactor protection and monitoring system cabinet simulation unit or a reactor protection and monitoring system cabinet; the instrument signal simulation output unit or the nuclear test signal simulation output unit changes the instrument signal of the test channel and sends the instrument signal to the reactor protection and monitoring system cabinet; the special safety driving feedback signal analog output unit changes a feedback signal according to the script instruction and sends the feedback signal to a shutdown circuit breaker or a special safety facility driving interface unit; the time acquisition processing unit starts a timing time T1 and waits for a timing end instruction.

And S203, the system cabinet processes corresponding signals transmitted by the communication conversion output unit, the instrument signal analog output unit, the nuclear test signal analog output unit and the system cabinet analog unit, performs preset operation on a processing result, and sends a budget result to the special safety facility driving interface unit.

Specifically, the reactor protection and monitoring system cabinet processes signals sent by the communication conversion single output unit, the instrument signal analog output unit, the nuclear test signal analog output unit and the reactor protection and monitoring system cabinet analog unit, compares set values and performs two-out-of-four operation; and the operation result is sent to a shutdown circuit breaker or a special safety facility to drive the interface unit to drive the equipment to act.

S204, the driving interface unit of the special safety facility obtains a corresponding driving signal according to the budget result, and sends the driving signal to the time acquisition and processing unit, and the time acquisition and processing unit stops timing according to the driving signal and records the timing as an end time;

specifically, a driving signal of a shutdown circuit breaker or a special safety facility driving interface unit is sent to a time acquisition and processing unit, and timing is finished; the time acquisition processing unit acquires an end timing T2.

S205, calculating a response time value according to the starting time and the ending time, and comparing the response time value with a preset acceptance criterion;

specifically, the response time T = T2-T1 is calculated; and the time acquisition processing unit sends the response time T to a control and display upper computer for display.

And S206, outputting a qualified test result when the response time value is smaller than the acceptance criterion.

Specifically, the control and display upper computer compares the response time with an acceptance criterion, and the time is less than the acceptance criterion and is qualified in the test.

In the implementation, the invention provides a nuclear power plant reactor protection and monitoring system response time measuring method, and the nuclear power plant reactor protection and monitoring system response time measuring device and method adopt a script form for automatic test, thereby improving the test efficiency; the measuring device can automatically simulate signals, automatically acquire time and calculate, avoid manual processing and calculation of data in the data recorder, avoid errors and errors caused by manual data processing and calculation, and improve the precision and success rate of response time testing.

In addition, on the basis of the above embodiment, the method for measuring the response time of the nuclear power plant reactor protection and monitoring system further includes:

the upper computer executes the test script and sends a test instruction to the instrument signal analog output unit, the nuclear test signal analog output unit and the time acquisition and processing unit;

the instrument signal analog output unit or the nuclear test signal analog output unit changes an instrument signal and sends the instrument signal to the system cabinet;

the time acquisition and processing unit starts timing and records as a second starting moment;

the system cabinet processes corresponding signals sent by the communication conversion output unit, the instrument signal analog output unit and the nuclear test signal analog output unit, and sends processing results to the system cabinet analog unit;

the system cabinet simulation unit obtains a driving signal according to the processing result, sends the driving signal to the time acquisition and processing unit, stops timing and marks the timing as a second ending moment;

calculating to obtain a second response time value through the second starting time and the second ending time, and comparing the second response time value with a preset acceptance criterion;

and when the second response time value is smaller than the acceptance criterion, outputting a result of qualified test.

Specifically, in this embodiment, there is also a nuclear power plant reactor protection and monitoring system response time measurement, comprising:

step 1: and controlling and displaying an upper computer to send instructions, and recovering the state of the reactor protection and monitoring system.

Step 2: controlling and displaying an upper computer to execute a test script, and sending instructions to an instrument signal analog output unit, a nuclear test signal analog output unit and a time acquisition and processing unit to perform response time test among redundant sequences; the instrument signal simulation output unit or the nuclear test signal simulation output unit changes the instrument signal of the test channel and sends the instrument signal to the reactor protection and monitoring system cabinet; the time acquisition processing unit starts a timing time T1 and waits for a timing end instruction.

And step 3: and the reactor protection and monitoring system cabinet processes signals sent by the communication conversion single output unit, the instrument signal analog output unit and the nuclear test signal analog output unit, compares set values and sends a comparison result to the reactor protection and monitoring system cabinet analog unit.

And 4, step 4: the reactor protection and monitoring system cabinet simulation unit sends the driving signal to the time acquisition and processing unit and finishes timing; the time acquisition processing unit acquires the timing time T2 of the end and calculates the response time T = T2-T1; the time acquisition processing unit sends the response time T to the control and display upper computer for display, the control and display upper computer compares the response time with an acceptance criterion, and the time is less than the acceptance criterion and is qualified in the test.

And 5: and controlling and displaying an upper computer to send instructions, and recovering the state of the reactor protection and monitoring system.

In an embodiment of the invention, an acceptance criteria test is provided for measuring response time of a nuclear power plant reactor protection and monitoring system.

The above-described aspects may be implemented individually or in various combinations, and such variations are within the scope of the present invention.

It should be noted that, in the description of the present application, it should be noted that the terms "upper end", "lower end" and "bottom end" indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which the product of the application is usually placed in when the product of the application is used, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.