CN107544478A - Analog quantity automatic testing equipment and method in nuclear power DCS identifications - Google Patents
Analog quantity automatic testing equipment and method in nuclear power DCS identifications Download PDFInfo
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- CN107544478A CN107544478A CN201711015339.9A CN201711015339A CN107544478A CN 107544478 A CN107544478 A CN 107544478A CN 201711015339 A CN201711015339 A CN 201711015339A CN 107544478 A CN107544478 A CN 107544478A
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Abstract
The invention belongs to the technical field of system performance testing in nuclear power DCS, there is provided it is a kind of can be realized simultaneously in DCS monitoring accuracy test and temperature drift, when drift monitoring the analog quantity automatic testing equipment and method in nuclear power DCS identifications；Described device includes：Multiple temperature sensors, it is separately positioned in the different analog quantity channels of the nuclear power DCS, and is arranged on together with the nuclear power DCS in Homothermal Proof Box；Multiple Signal-regulated kinases, the temperature signal of the multiple temperature sensor is received respectively, and the temperature signal is converted into electric signal；Industrial computer, including data collecting plate card, memory and controller, the data collecting plate card are arranged to receive the electric signal of the multiple Signal-regulated kinase, and the memory can be stored the electric signal that the data collecting plate card receives；The controller calculates the when drift and/or temperature drift parameter of the nuclear power DCS analog quantity channel described in nuclear power DCS identifications based on the electric signal stored in the memory.
Description
Technical field
The present invention relates to the technical field of system performance testing in nuclear power DCS, more particularly to one kind is in nuclear power DCS identifications
Analog quantity automatic testing equipment and method.
Background technology
Nuclear Safety level equipment must be by identification, and in nuclear safe level DCS (the English full name identified before dispatching from the factory
Distributed Control System, dcs) in equipment, analog data collection and sendaisle are to protecting
The effect of protecting system is most important；The index of analog quantity channel includes：Precision, resolution ratio, picking rate or settling time, temperature
Drift, when drift etc..
Wherein, to temperature drift and when the specific requirement floated include：When the environment temperature of equipment changes, make to have in equipment
The device parameters of temperature characterisitic change therewith, cause the precision of analog quantity channel to vary with temperature and change, i.e., there occurs temperature drift,
The index of conventional temperature drift parameter is " 50ppm/ DEG C " or " 100ppm/ DEG C " etc., that is, represents that temperature often changes 1 DEG C, precision is allowed
Excursion be the range 50/106 or 100/106.And work as the uninterrupted longtime running of equipment, make to influence precision in equipment
Component with the time occur aging, ultimately cause precision and change, i.e., there occurs when float；For npp safety level DCS
Analog quantity channel, usually require that：" 24 months when float, analog quantity channel remains to meet required precision ".And for when float
Specific requirement includes：" input signal should be stably maintained at 90%. equivalent to range ... ..., and the every workday all measures defeated people
And output, and determined by calculating any minor variations of defeated people and correct output shift；It must be noted that not make in addition to the time
Ambient environmental conditions caused by change cover the influence of long term drift ".And electrically set for the instrument control outside installation containment
Electronic product between standby or in master control room, the degradation of Alternate hot and humid and longtime running need to be carried out；Degradation includes 55
DEG C, the environment temperatures such as 40 DEG C.
In the prior art, it is very universal in DCS testing fields to the full-automatic testing of analog quantity channel precision, such as in
State's number of patent application is in 201220496632.8 patent, discloses a kind of high-precision multi-path analog quantity and tests automatically and is
System, using multi-signal analog quantity channel automatic testing equipment, the automatic precision for having been achieved with nuclear safe level DCS qualification tests is surveyed
Examination；And under the qualification test environment of complexity, to polytype signal and the full-automatic testing of multiple analog quantity channels.
But when drift with temperature drift be to influence the major reason of passage precision, especially the environmental test condition in identification activity
Under；In addition, in qualification test, at the same pay close attention to precision and temperature drift, when the performance indications floated, can not only evaluate more fully hereinafter
Analog quantity channel, reason the problem of when can also occur abnormal to the tracing and positionings of data by testing.Therefore, art technology
Personnel are highly desirable develop one kind can in nuclear power DCS equipment qualifications and meanwhile realize accuracy test and temperature drift, when drift monitoring
Automatic test technical scheme.
It should be noted that in above-mentioned technical proposal, some technology contents are also the content of the invention of present patent application, above-mentioned
Statement, only to facilitate those skilled in the art's present patent application easier to understand, rather than these descriptions are all attributed to
The scope of prior art.
The content of the invention
The technical problem to be solved in the present invention, which is to provide one kind, in DCS monitoring while to realize accuracy test and temperature
Drift, when drift monitoring nuclear power DCS identification in analog quantity automatic testing equipment and method.
To achieve these goals, technical scheme provided by the invention includes：
One aspect of the present invention provides a kind of analog quantity automatic testing equipment in nuclear power DCS identifications, it is characterised in that bag
Include：
Multiple temperature sensors, be separately positioned in the different analog quantity channels of the nuclear power DCS, and with the nuclear power
DCS is arranged in Homothermal Proof Box together；
Multiple Signal-regulated kinases, the temperature signal of the multiple temperature sensor is received respectively, and the temperature is believed
Number be converted to electric signal；
Industrial computer, including data collecting plate card, memory and controller, the data collecting plate card are arranged to
Receive the electric signal of the multiple Signal-regulated kinase, the electric signal that the memory can receive the data collecting plate card
Stored；The controller calculates the nuclear power described in nuclear power DCS identifications based on the electric signal stored in the memory
DCS analog quantity channel when drift and/or temperature drift parameter.
Preferably, described device also includes the embodiment of the present invention：It is connected by Ethernet with the data collecting plate card
Passage switches relay；The controller controls the Multipath digital quantity signal output port of the data collecting plate card, to control
The switching channel of multy-way switching relay.
The embodiment of the present invention preferably, when the analog acquisition passage to system under test (SUT) is tested, passes through Ethernet
Mouth gathers the passage gathered data that the system under test (SUT) is sent；When the analog output channel to system under test (SUT) is tested,
The theoretical output valve of analog output channel is sent to the system under test (SUT) by Ethernet interface.
The embodiment of the present invention preferably, described device also include be arranged on the industrial computer and the passage switching after
Instrument between electrical equipment, the instrument can export and gather multiple analog amount signal.
Preferably, the temperature sensor type is the TEMP of four-wire system temperature detecting resistance type to the embodiment of the present invention
Device.
Another aspect of the present invention, there is provided a kind of analog quantity automatic test approach in nuclear power DCS identifications, its feature exist
In, including：
The temperature parameter in the different analog quantity channels of the nuclear power DCS is gathered respectively；
The temperature parameter in the different analog quantity channels of the nuclear power DCS is received respectively, and the temperature parameter is changed
For electric signal；
The electric signal after the conversion is received, and by the electric signal storage after the conversion in memory；It is then based on
The electric signal stored in the memory, calculate nuclear power DCS identification described in nuclear power DCS analog quantity channel when drift and/
Or temperature drift parameter.
Preferably, methods described also includes the embodiment of the present invention：The Multipath digital quantity signal of control data analog input card is defeated
Exit port, to control the switching channel of multy-way switching relay.
The embodiment of the present invention preferably, when the analog acquisition passage to system under test (SUT) is tested, passes through Ethernet
Mouth gathers the passage gathered data that the system under test (SUT) is sent；When the analog output channel to system under test (SUT) is tested,
The theoretical output valve of analog output channel is sent to the system under test (SUT) by Ethernet interface.
Preferably, methods described also includes the embodiment of the present invention：By switching the instrument that is connected of relay with the passage,
Export and gather multiple analog amount signal.
The embodiment of the present invention preferably, by the temperature sensor of four-wire system temperature detecting resistance type, gathers institute simultaneously respectively
State the temperature of position in different analog quantity channels.
The above-mentioned technical proposal provided using the application, can obtain at least one of following beneficial effect：
1st, based on the mechanism of aging analysis, will when float to survey with two kinds of temperature drift and be incorporated into equipment qualification experiment, not only
Improve testing efficiency, can with comprehensive assessment temperature drift with when float the mutual influence of two kinds of factors.
2nd, in test, each tested passage carries out the precision of multiple spot, makes test more comprehensive.
3rd, realize realized simultaneously in nuclear power DCS equipment qualifications accuracy test and temperature drift, when drift monitoring full-automatic testing.
The further feature and advantage of invention will illustrate in the following description, also, partly become aobvious from specification
And be clear to, or understood by implementing technical scheme.The purpose of the present invention and other advantages can be by illustrating
Specifically noted structure and/or flow are realized and obtained in book, claims and accompanying drawing.
Brief description of the drawings
Fig. 1 is a kind of knot for analog quantity automatic testing equipment in nuclear power DCS identifications that one embodiment of the invention provides
Structure block diagram.
Fig. 2 is a kind of analog quantity automatic testing equipment in nuclear power DCS identifications that another embodiment of the present invention provides
Structured flowchart.
Fig. 3 is a kind of stream for analog quantity automatic test approach in nuclear power DCS identifications that one embodiment of the invention provides
Cheng Tu.
Fig. 4 is a kind of analog quantity automatic test approach in nuclear power DCS identifications that another embodiment of the present invention provides
Flow chart.
Embodiment
Embodiments of the present invention are described in detail below with reference to drawings and Examples, and how the present invention is applied whereby
Technological means solves technical problem, and the implementation process for reaching technique effect can fully understand and implement according to this.Need to illustrate
, these specific descriptions are to allow those of ordinary skill in the art to be more prone to, clearly understand the present invention, rather than to this hair
Bright limited explanation；And if conflict is not formed, each embodiment in the present invention and each spy in each embodiment
Sign can be combined with each other, and the technical scheme formed is within protection scope of the present invention.
In addition, can be in the control system of a such as group controller executable instruction the flow of accompanying drawing illustrates the step of
Middle execution, although also, show logical order in flow charts, in some cases, can be with different from herein
Order performs shown or described step.
Below by the drawings and specific embodiments, technical scheme is described in detail：
Inventor float in completing present patent application Duis and/or the test process of temperature drift in find：
1st, due to the chamber of qualification test can only be overall in control cabinet temperature, it is local that tested hardware board can not be positioned
Temperature, therefore when testing temperature drift, it is necessary to which temperature sensor is arranged near tested board.Therefore multiple temperature are needed to pass
Sensor, temperature acquisition is carried out simultaneously when test device carries out accuracy test.
2. need whether the agine mechaism for analyzing and identifying long-run test can meet the aging requirement of " 24 months ".According to
Relevant criterion is identified, the requirement of the long-run test of environmental test is as follows in npp safety level DCS equipment qualifications：Equipment is pacified
In incubator, and running status is continuously operated in, warm the temperature inside the box is first raised to 55 DEG C, operation again becomes temperature for 300 hours
For 40 DEG C, run 300 hours；Reference test is carried out at ambient temperature before and after experiment.This agine mechaism is calculated as follows：
Test life accelerator coefficient A=e is calculated according to A Lunniusi equationsEa(T-T0)/ KTOT is understood：
Ea activation herein can be unknown, is temporarily taken as 0.67；
K is Boltzmann constants, numerical value 8.617E-5；
Normal temperature service condition is 25 DEG C, and maximum temperature rise is taken as 10 DEG C, therefore T0 is taken as 35 DEG C；
Under the conditions of T=40 DEG C, accelerator coefficient 1.49；
Under the conditions of T=55 DEG C, accelerator coefficient 57.05；
Long-run test can verify that the life-span is 300*1.49+300*57.05=17562h；
It is required that the checking life-span is 24 months, i.e. 24*30*24=17280h；
Meet above-mentioned requirements, the requirement of life-span validation test could be met.
Wherein, the activation energy parameter taken in calculating is 0.67 (taking 0.5~0.7 generally according to electron transfer), may be by
It is proposed too high.But with reference to the requirement of the standards of EJ1197-2007, it is in no more than 0.8eV in the range of receiving, that is, meets standard requirement.
The warm and humid compbined test of system under test (SUT) identification requires as follows：" system under test (SUT) is operated in running status, 55 DEG C, and 95%
RH, maintain 48h；1.2 DEG C, 5%RH, 8h " is maintained, the verification environment requirement to temperature drift can be covered.
It follows that the long-run test in identification has covered the aging requirement of 24 months；Warm and humid comprehensive examination
Test the requirement that also cover with the reference test before and after long-run test and each experiment item to temperature drift checking；I.e. by setting
The environmental test of standby identification, so that it may meet to simulation accuracy of measurement temperature drift and when drift test stress requirement.
Embodiment
As shown in figure 1, one embodiment of the invention provides a kind of analog quantity automatic testing equipment in nuclear power DCS identifications,
The test device includes：
Multiple temperature sensors 210,220,230, are separately positioned in nuclear power DCS different analog quantity channels, and with
Nuclear power DCS is arranged in Homothermal Proof Box (section corresponding to the dotted line frame in Fig. 1) together；Can be in each of nuclear power DCS
1 or multiple temperature sensors are set respectively in analog quantity channel, and it is real-time so can to obtain each analog quantity channel in time
Temperature information；
Multiple Signal-regulated kinases 310,320,330, the temperature letter of multiple temperature sensors 210,220,230 is received respectively
Number, and temperature signal is converted into electric signal；I.e. each temperature sensor 210,220,230 is respectively arranged with a signal condition
Module 310,320,330, the temperature signal of each temperature sensor 210,220,230 is then converted into electric signal (example respectively
Such as current signal)；Certain multiple Signal-regulated kinases 310,320,330 can set a hardware respectively according to the actual requirements
Circuit board, or integrate in another hardware circuit board；
Industrial computer 400, including data collecting plate card 410, memory 420 and controller 430, data collecting plate card
410 are arranged to receive the electric signal of multiple Signal-regulated kinases 310,320,330, and memory can be by data collecting plate card
410 electric signals received are stored；Controller 430 is calculated in nuclear power DCS identifications based on the electric signal stored in memory
Nuclear power DCS analog quantity channel when drift and/or temperature drift parameter.
Therefore, by above-mentioned test device, can be taken with the existing analog quantity channel to nuclear power DCS in binding test device
Value changes, judge that the reference test before and after each experiment item also cover to temperature drift checking；It is foregoing to aging analysis so as to combine
Mechanism based on, will when float to survey with two kinds of temperature drift and be incorporated into equipment qualification experiment, not only improve testing efficiency, can be with comprehensive
Close assess temperature drift with when float the mutual influence of two kinds of factors.
Preferably, test device also includes the present embodiment：The passage being connected by Ethernet with data collecting plate card switches
Relay；The Multipath digital quantity signal output port of controller control data analog input card, to control multy-way switching relay
Switching channel.
The present embodiment passes through ether it is further preferred that when the analog acquisition passage to system under test (SUT) is tested
The passage gathered data that network interface collection system under test (SUT) is sent；When the analog output channel to system under test (SUT) is tested, lead to
Cross the theoretical output valve that Ethernet interface sends analog output channel to system under test (SUT).
Preferably, test device also includes the instrument being arranged between industrial computer and passage switching relay to the present embodiment
Table, instrument can export and gather multiple analog amount signal.
Preferably, temperature sensor type is the temperature sensor of four-wire system temperature detecting resistance type to the present embodiment.
More specifically, as shown in Fig. 2 the analog quantity in nuclear power DCS identifications of another embodiment offer of the application is automatic
Test device, including：
1), " numbering 210,220,230 " is temperature sensor, using PT100 type four-wire system temperature detecting resistances；The quantity of resistance
Determined according to test requirements document and products characteristics.
2), " numbering 310,320,330 " is Signal-regulated kinase, and the module changes temperature signal (being represented with resistance value)
For 4-20mA current signals.
3), the line between temperature sensor and Signal-regulated kinase is temperature signal transmission cable, using with
The multi-core cable of shielding, line footpath are not less than 1mm2, and line length is no more than 25m.
4) " numbering 400 " is industrial computer, by loading and running automatic testing software, calculates and stores test note
Record, and the test report of exportable prescribed form.Computer configuration data analog input card " 410 ", Ethernet interface and the serial communication
Port, it is described as follows：
A), data collecting plate card " 410 " provides multi-analog signal acquisition port, for gathering conditioned module transfer
Temperature signal；Simultaneously need data collecting plate card provide Multipath digital quantity signal output port, for control multy-way switching after
Electrical equipment；Therefore, the serial full-automatic survey of multichannel is realized using high-precision meter 600 (generally only providing a TCH test channel)
Examination；
B), Ethernet interface is used to realize with system under test (SUT) and communicated, when the analog acquisition passage to system under test (SUT) is surveyed
During examination, the passage gathered data of system under test (SUT) transmission is gathered by Ethernet interface；When to the analog output channel of system under test (SUT)
When being tested, the theoretical output valve of analog output channel is sent to system under test (SUT) by Ethernet interface；
C), COM is used for being connected with tested instrument, realizes and high-precision meter is automatically controlled.
5), " numbering 600 " is high-precision meter, and the requirement for the instrument is as follows：
A), establishing criteria requirement：" test equipment precision need to be higher than system under test (SUT) 4 times "；
B), the instrument can export and gather multiple analog amount signal, and species, range and the precision of signal are satisfied by testing
It is required that；
C), the communication protocol open of the instrument, the instrument can be controlled to carry out data by the COM1 of industrial computer
Output and collection signal transmission.
6) " numbering 700 " is that passage switches relay, can be led to by the digital output passage of data collecting plate card
Road switches, and realizes the serial automatic test of multichannel.
7) wire between passage switching relay and system under test (SUT) access port is test signal transmission lines cable, is adopted
It is more than 0.1mm2, line length 25m with shielded 25 core cable, line footpath.
" Homothermal Proof Box " in Fig. 2 is the test equipment that laboratory provides, and " system under test (SUT) " is to be tested for this patent
System.
As shown in figure 3, the embodiment of the application one provides a kind of analog quantity automatic test approach in nuclear power DCS identifications,
This method includes：
S110, the respectively temperature parameter in collection nuclear power DCS different analog quantity channels；Can be in the every of nuclear power DCS
1 or multiple temperature sensors are set respectively in individual analog quantity channel, it is real can so to obtain each analog quantity channel in time
When temperature information；
S120, the temperature parameter in reception nuclear power DCS different analog quantity channels, and temperature parameter is converted into electricity respectively
Signal；I.e. each temperature sensor 210,220,230 is respectively arranged with a Signal-regulated kinase 310,320,330, Ran Houfen
The temperature signal of each temperature sensor 210,220,230 electric signal (such as current signal) is not converted into；Certain multiple letters
Number conditioning module 310,320,330 can set a hardware circuit board respectively according to the actual requirements, or to integrate another hard
In part circuit board；
S130, the electric signal after conversion is received, and by the electric signal storage after conversion in memory；It is then based on storing
The electric signal stored in device, calculate nuclear power DCS identification in nuclear power DCS analog quantity channel when drift and/or temperature drift parameter.
Therefore, by above-mentioned test device, can be taken with the existing analog quantity channel to nuclear power DCS in binding test device
Value changes, judge that the reference test before and after each experiment item also cover to temperature drift checking；It is foregoing to aging analysis so as to combine
Mechanism based on, will when float to survey with two kinds of temperature drift and be incorporated into equipment qualification experiment, not only improve testing efficiency, can be with comprehensive
Close assess temperature drift with when float the mutual influence of two kinds of factors
Preferably, method also includes the present embodiment：The Multipath digital quantity signal output port of control data analog input card, come
Control the switching channel of multy-way switching relay.
The present embodiment preferably, when the analog acquisition passage to system under test (SUT) is tested, is adopted by Ethernet interface
Collect the passage gathered data that system under test (SUT) is sent；When the analog output channel to system under test (SUT) is tested, pass through ether
Network interface sends the theoretical output valve of analog output channel to system under test (SUT).
Preferably, method also includes the present embodiment：By the instrument being connected with passage switching relay, export and gather more
Kind analog signalses.
The present embodiment preferably, by the temperature sensor of four-wire system temperature detecting resistance type, gathers different moulds simultaneously respectively
The temperature of position in analog quantity passage.
As shown in figure 4, on the other hand the application provides a kind of analog quantity automatic test approach in nuclear power DCS identifications,
This method includes：
S200, configuration parameter is read in, i.e. industrial computer reads storage and deposited in its memory according to actual test demand
The predetermined pending parameter of storage, the parameter can make the analog quantity channel of system under test (SUT) perform predetermined signal output；Configuration ginseng
Number includes test point quantity and reference value, the precision mark of parameters in the testing time point interval of each passage, each passage
Accurate (foundation)；
S202, record time：When starting test, current time is recorded；
S204, collecting temperature, to multiple collecting temperature weighted averages, i.e., multiple samplings, then after weighted average calculation, make
For temperature value output；
S206, data are sent, temperature parameter is sent by the network port and/or high-precision meter；
S208, wait data channel stable；
S210, collection output, that is, pass through the network port and/or high-precision meter collecting temperature parameter；
Whether S212, computational accuracy, calculating simulation amount passage output parameter precision meet to require；
S214, judge whether precision meets to require, if it is, performing step S218, otherwise, perform step S216；
Whether S216, prompting stop testing, if user's input is to perform step S220, otherwise, perform step S218；
S218, record data, then perform step S212；
S220, generation exception reporting；
S222, judge whether current TCH test channel is tested and terminate, if it is, performing step S226；Otherwise, step is performed
S224；
S224, it is switched to next test point and performs test, is back to step S206；
S226, judge whether to complete the test of all passages, if it is, performing step S228；Otherwise, step is performed
S230；
S228, continue to determine whether to reach the scheduled time, if it is, perform step S234；Otherwise, step S232 is performed；
S230, next passage is switched to, continues executing with step S204；
S232, next test starting time is waited, then perform step S202；
S234, end.
The above-mentioned technical proposal provided using the application, can obtain at least one of following beneficial effect：
1st, based on the mechanism of aging analysis, will when float to survey with two kinds of temperature drift and be incorporated into equipment qualification experiment, not only
Improve testing efficiency, can with comprehensive assessment temperature drift with when float the mutual influence of two kinds of factors.
2nd, in test, each tested passage carries out the precision of multiple spot, makes test more comprehensive.
3rd, realize realized simultaneously in nuclear power DCS equipment qualifications accuracy test and temperature drift, when drift monitoring full-automatic testing.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that described above is only highly preferred embodiment of the present invention, not the present invention is appointed
What formal limitation.Any those skilled in the art, it is without departing from the scope of the present invention, all available
The way and technology contents of the disclosure above make many possible variations and simple replacement etc. to technical solution of the present invention, these
Belong to the scope of technical solution of the present invention protection.
Claims (10)
- A kind of 1. analog quantity automatic testing equipment in nuclear power DCS identifications, it is characterised in that including：Multiple temperature sensors, be separately positioned in the different analog quantity channels of the nuclear power DCS, and with the nuclear power DCS It is arranged on together in Homothermal Proof Box；Multiple Signal-regulated kinases, the temperature signal of the multiple temperature sensor is received respectively, and the temperature signal is turned It is changed to electric signal；Industrial computer, including data collecting plate card, memory and controller, the data collecting plate card are arranged to receive The electric signal of the multiple Signal-regulated kinase, the memory can be carried out the electric signal that the data collecting plate card receives Storage；The controller calculates the nuclear power DCS described in nuclear power DCS identifications based on the electric signal stored in the memory Analog quantity channel when drift and/or temperature drift parameter.
- 2. device according to claim 1, it is characterised in that described device also includes：Pass through Ethernet and the data The passage switching relay of analog input card connection；The controller controls the Multipath digital quantity signal of the data collecting plate card defeated Exit port, to control the switching channel of multy-way switching relay.
- 3. device according to claim 2, it is characterised in that when the analog acquisition passage to system under test (SUT) is tested When, the passage gathered data that the system under test (SUT) sends is gathered by Ethernet interface；When the analog output to system under test (SUT) leads to When road is tested, the theoretical output valve of analog output channel is sent to the system under test (SUT) by Ethernet interface.
- 4. device according to claim 2, it is characterised in that described device also include be arranged on the industrial computer and Instrument between the passage switching relay, the instrument can export and gather multiple analog amount signal.
- 5. according to the device described in any one in claim 1-4, it is characterised in that the temperature sensor type is four lines The temperature sensor of temperature detecting resistance type processed.
- A kind of 6. analog quantity automatic test approach in nuclear power DCS identifications, it is characterised in that including：The temperature parameter in the different analog quantity channels of the nuclear power DCS is gathered respectively；The temperature parameter in the different analog quantity channels of the nuclear power DCS is received respectively, and the temperature parameter is converted into electricity Signal；The electric signal after the conversion is received, and by the electric signal storage after the conversion in memory；It is then based on described The electric signal stored in memory, calculate nuclear power DCS identification described in nuclear power DCS analog quantity channel when drift and/or temperature Float parameter.
- 7. according to the method for claim 6, it is characterised in that methods described also includes：Control data analog input card it is more Railway digital amount signal output port, to control the switching channel of multy-way switching relay.
- 8. according to the method for claim 7, it is characterised in that when the analog acquisition passage to system under test (SUT) is tested When, the passage gathered data that the system under test (SUT) sends is gathered by Ethernet interface；When the analog output to system under test (SUT) leads to When road is tested, the theoretical output valve of analog output channel is sent to the system under test (SUT) by Ethernet interface.
- 9. according to the method for claim 7, it is characterised in that methods described also includes：By with the passage switching after The instrument of electrical equipment connection, exports and gathers multiple analog amount signal.
- 10. according to the method for claim 6, it is characterised in that by the temperature sensor of four-wire system temperature detecting resistance type, Gather the temperature of position in the different analog quantity channels simultaneously respectively.
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| CN109387344A (en) * | 2018-09-21 | 2019-02-26 | 北京广利核系统工程有限公司 | The Aseismic Analytical Method identified again after a kind of change for structure member design |
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