CN102122433A - On-line testing device and method for digital signal channel of nuclear power plant - Google Patents
On-line testing device and method for digital signal channel of nuclear power plant Download PDFInfo
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Abstract
The invention discloses an on-line testing device and an on-line testing method for a digital signal channel of a nuclear power plant. The on-line testing device for the digital signal channel of the nuclear power plant mainly comprises a test signal receiving module, a signal receiving module, a first signal processing module, a second signal processing module and a test result display module, wherein the first signal processing module is used for performing first logic processing on a digital signal and a test signal so as not to change the digital signal and transmit the processed signal in a digital signal channel to be tested; and the second signal processing module is used for performing second logic processing on the signal, the test signal and the digital signal which are processed by the first signal processing module to acquire a test result. The invention also provides the on-line testing method for the digital signal channel of the nuclear power plant. Through the device and the method, whether signal channel transmission is normal can be directly judged according to the result displayed by the test result display module under the condition of not influencing the digital signal; the method is simple and practicable; and signal transmission is safe and reliable.
Description
Technical field
The present invention relates to the nuclear power technology field, relate in particular to a kind of nuclear power station digital signal passage online testing device and method thereof.
Background technology
After the nuclear plant digital, most signals all are that the digital control system by nuclear power station transmits, the stability of signal transmission seems and is even more important, if each signal can not normal transmission will produce a series of adverse consequences, when the signal transmission is broken down, usually want each signal transmission passage of online detection whether to connect normally, and do not influence original signal transmission.Conventional detection is disturbed the transmission of normal signal easily, can not guarantee the stability of signal transmission fully, and testing process is more loaded down with trivial details, is unfavorable in time finding the signalling channel transmission fault.
Summary of the invention
The technical problem to be solved in the present invention is can not guarantee the stability of signal transmission and the defective of testing process complexity at detection method in the prior art, a kind of nuclear power station digital signal passage online testing device and method thereof are provided, make the safe transmission that guarantees original signalling channel in the online testing process, detection method is simple simultaneously.
The technical solution adopted for the present invention to solve the technical problems is:
Construct a kind of nuclear power station digital signal passage online testing device, comprise,
The test signal receiver module is used for the acceptance test signal;
Signal receiving module is used for receiving the digital signal that will transmit at digital signal passage to be measured;
First signal processing module is used for carrying out first logical process with described digital signal with through described test signal, not changing described digital signal, and treated signal is transmitted in described digital signal passage to be measured;
The secondary signal processing module is used for the signal through described first signal processing module processing, and described test signal and described digital signal are carried out second logical process, to draw test result;
The test result display module is used to show described test result.
In the nuclear power station digital signal passage online testing device of the present invention, described test signal comprises first test signal and second test signal;
Described secondary signal processing module comprises:
First logical block, comprise first not gate and first and the door, the input end of described first not gate connects described test signal receiver module, inserts described first test signal; Described first is connected described test signal receiver module with an input end of door, inserts described second test signal, described first with another input end be connected the output terminal of described first not gate;
Second logical block, comprise second with the door, second not gate and first or the door, the input end of described second not gate connects described test signal receiver module, inserts described second test signal; Described second is connected described test signal receiver module with an input end of door, inserts described first test signal, described second with another input end be connected the output terminal of described second not gate; Described first or the door an input end connect described signal receiving module, insert described digital signal, described first or the door the other end connect described second with the door output terminal, described first or the door output terminal connect described digital signal passage input end to be measured;
The 3rd logical block is used for carrying out logical process again through the signal of described second logic cell processes and the signal of handling through described first signal processing module, to obtain the test result signal.
In the nuclear power station digital signal passage online testing device of the present invention, described first signal processing module comprises,
Second or the door, one of them input end connects described signal receiving module, inserts described digital signal; Another input end connect described first with the output terminal of door, described second or the output terminal of door connect the input end of described digital signal passage to be measured;
The 3rd with the door, one of them input end connects the output terminal of described digital signal passage to be measured, with insert described first or the door output end signal, another input end connects the output terminal of described digital signal passage to be measured, with obtain described second or the door output end signal, the described the 3rd with output terminal be connected described signal output module.
In the nuclear power station digital signal passage online testing device of the present invention, described the 3rd logical block comprise the 3rd or the door, the described the 3rd or one of them input end of door connect the output terminal of described digital signal passage to be measured, with obtain first or the door output end signal, another input end connects the output terminal of described digital signal passage to be measured, with obtain described second or the door output end signal, the described the 3rd or the door output terminal connect described test result display module.
In the nuclear power station digital signal passage online testing device of the present invention, described test signal comprises the 3rd test signal;
Described secondary signal processing module comprises:
Logical processing unit one, comprise not gate one and or door one, the input end of wherein said not gate one inserts described the 3rd test signal; An input end described or door one connects the output terminal of described not gate one, and another input end described or door one connects described signal receiving module, inserts described digital signal, and output terminal described or door one connects described digital signal passage input end to be measured;
Logical processing unit two comprises or door two that one of them input end connects described digital signal channel output end to be measured, to obtain the output signal of described Logical processing unit one; Another input end described or door two connects described digital signal channel output end to be measured, to obtain the output signal of described signal processing unit; Output terminal described or door two connects described test result display module;
Described first signal processing module comprises,
Or door three, one of them input end connects described signal receiving module, inserts described digital signal; Another input end connects described test signal receiver module, inserts described the 3rd test signal; Output terminal described or door two connects the input end of described digital signal passage to be measured;
With door one, one of them input end connects the output terminal of described digital signal passage to be measured, to insert output end signal described or door three, another input end connects the output terminal of described digital signal passage to be measured, to obtain output end signal described or door one, described output terminal with door one is connected described signal output module.
The present invention also provides a kind of nuclear power station digital signal passage on-line testing method, may further comprise the steps:
A, acceptance test signal and the digital signal that will in digital signal passage to be measured, transmit; B, described test signal and described digital signal are carried out first logical process, not changing described digital signal, and with treated described test signal and described digital signal by described digital signal channel transfer to be measured;
C, will be through the signal of described first logical process, described test signal and described digital signal are carried out second logical process, obtaining test result, and show described test result, judge according to the described test signal and the described result of input whether the digital signal passage is normal.
In the nuclear power station digital signal passage on-line testing method of the present invention, in the steps A, described test signal is two signals inequality, comprises first test signal and second test signal, is respectively " 0 " or " 1 ".
In the nuclear power station digital signal passage on-line testing method of the present invention, step B comprises:
B1, with after the described first test signal negate with second test signal with, obtain first processing signals;
B2, with after the described second test signal negate with first test signal with, with the result get with described digital signal again or after, obtain second processing signals, and with described second processing signals through digital signal channel transfer to be measured;
B3, with described digital signal and described first processing signals is got or after obtain the 3rd processing signals, with described the 3rd processing signals through described digital signal channel transfer to be measured.
In the nuclear power station digital signal passage on-line testing method of the present invention, step C comprises:
C1, will through described the 3rd processing signals of described digital signal passage to be measured again with through described second processing signals of described digital signal passage to be measured with, with the result export as output signal.
C2, will through described the 3rd processing signals of described digital signal passage to be measured and through described second processing signals of described digital signal channel transfer to be measured get or, and with get or the result show;
C3, judge according to display result whether the transmission of digital signalling channel is normal, and when described display result was " 1 ", described digital signal channel transfer was normal; When described display result was " 0 ", described digital signal channel transfer broke down.
In the nuclear power station digital signal passage on-line testing method of the present invention,
Test signal described in the steps A comprises the 3rd test signal, is " 0 " or " 1 ";
Step B comprises:
After described the 3rd test signal negate, get with described digital signal again or, obtain processing signals one, and with described processing signals one through digital signal channel transfer to be measured;
With described the 3rd test signal and described digital signal is got or, obtain processing signals two, and with described processing signals two through digital signal channel transfer to be measured;
Step C comprises:
With all pass through the described processing signals one of digital signal channel transfer to be measured and described processing signals two-phase with, with the result export as output signal;
With all pass through the described processing signals one of digital signal channel transfer to be measured and described processing signals two is got or, with get or the result show;
Judge according to display result whether digital signalling channel transmission is normal, and when described display result was " 1 ", described digital signal channel transfer was normal; When described display result was " 0 ", described digital signal channel transfer broke down.
The beneficial effect that the present invention produces is: by the logical process in first signal processing module and the secondary signal processing module, can be under the situation that does not influence digital signal, judgement judges directly whether this signalling channel transmission is normal according to test result display module result displayed, method is simple, and the signal transmission security is reliable.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the synoptic diagram one of preferred embodiment nuclear power station digital signal passage online testing device of the present invention;
Fig. 2 is the synoptic diagram two of preferred embodiment nuclear power station digital signal passage online testing device of the present invention;
Fig. 3 is the process flow diagram one of preferred embodiment nuclear power station digital signal passage on-line testing method of the present invention;
Fig. 4 is the flowchart 2 of preferred embodiment nuclear power station digital signal passage on-line testing method of the present invention.
Embodiment
In the preferred embodiment of the present invention, as shown in Figure 1,, comprise for nuclear power station digital signal passage online testing device,
Test signal receiver module 22 is used for the acceptance test signal;
First signal processing module 12, be used for carrying out first logical process with digital signal with through test signal, not change digital signal, the signal that output signal after promptly handling through first signal processing module 12 and signal receiving module 11 are received is identical; And treated signal transmitted in digital signal passage to be measured;
Secondary signal processing module 23 is used for the signal through the processing of first signal processing module, and test signal and digital signal are carried out second logical process, to draw test result;
Test result display module 24 is used to show test results.
Further, proving installation also comprises signal receiving module 11, is used for receiving the digital signal that will transmit at digital signal passage to be measured;
Test signal load module 21 is used for input test signal, and this test signal is two signals, can import the digital signal of " 0 " or " 1 " arbitrarily; As be respectively " 0 " " 0 ", " 0 " " 1 ", " 1 " " 0 " or " 1 " " 1 ".
Test signal receiver module 22 is used for the test signal that acceptance test signal input module 21 is imported;
Test signal processing module 23 is used for the digital signal of signal receiving module 11 receptions and the test signal of test signal receiver module 22 are carried out the Digital Logic processing, to draw test result;
Further, secondary signal processing module 23 comprises,
First logical block 231, comprise first not gate and first and the door, the input end of first not gate inserts first test signal of test signal receiver module 22, first inserts second test signal of test signal receiver module 22 with input end of door, first with another input end be connected the output terminal of first not gate;
Second logical block 232, comprise second with the door, second not gate and first or the door, the input end of second not gate inserts second test signal of test signal receiver module 22, second inserts first test signal of test signal receiver module 22 with input end of door, and another input end connects the output terminal of second not gate; First or an input end incoming digital signal of door, first or the other end of door connect second with the output terminal of door, first or the output terminal of door connect digital signal passage input end to be measured;
The 3rd logical block 233 is used for the signal that will handle through second logical block 232 and the signal of handling through first signal processing module 12 carried out logical process again, to obtain the test result signal.Further, the 3rd logical block 233 comprise the 3rd or the door, wherein the 3rd or an input end of door connect the output terminal of digital signal passage to be measured, with obtain first logical block 231 first or the door output end signal, the 3rd or another input end of door connect the output terminal of digital signal passage to be measured, with the output end signal of second or the door that obtain first signal processing module 12, the 3rd or the output terminal of door connect test result display module 24.
Further, as shown in Figure 1, first signal processing module 12 comprises,
Second or the door, wherein second or input end of door connect signal receiving module 11, second or another input end of door connect in first logical block 231 first with the output terminal of door, second or the output terminal of door connect the output terminal of digital signal passage to be measured, with the signal that will handle through first signal processing module 12 by digital signal channel transfer to be measured;
The 3rd with the door, one of them input end connects the output terminal of digital signal passage to be measured, with obtain the 3rd logical block 233 first or the door output end signal, another input end also connects the output terminal of digital signal passage to be measured, with obtain second or the door output end signal, the 3rd with output terminal be connected signal output module 13.
In the different test signal of input, through corresponding logical process, the concrete state of each signal is as shown in table 1 below:
Each signal condition during two test signals of table 1
| First test signal | Second test signal | Digital signal in the passage to be measured | Output signal | Test result |
| 0 | 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 1 | 1 |
| 0 | 1 | 0 | 0 | 1 |
| 0 | 1 | 1 | 1 | 1 |
| 1 | 0 | 0 | 0 | 1 |
| 1 | 0 | 1 | 1 | 1 |
| 1 | 1 | 0 | 0 | 0 |
| 1 | 1 | 1 | 1 | 1 |
By each signal in the table 1 as can be known, first test signal and second test signal do not influence the signal that transmits in the digital signal passage to be measured for " 1 " or " 0 "; In actual on-line testing process, have only input different first test signal and second test signal, whether normal, show that then digital signal channel transfer to be measured is normal if display result is " 1 " in the test result display module 24 if can test digital signal passage to be measured; If " 0 " represents that then digital signal channel transfer to be measured breaks down.
Embodiment of the invention nuclear power station digital signal passage online testing device mainly is a test nuclear power station DCS system, and promptly whether the transmission channel between Digitizing And Control Unit and other instrument control systems is normal, both can implement by hardware, also can realize by software.If the functional block by software realizes, then in the nuclear power station digital signal passage online testing device in the secondary signal processing module first logical block 231 and second logical block 232 in 23 realize in the DCS system by the function corresponding piece, in second logical block 232 and first signal processing module 12 second or the output signal of door through entering in other instrument control systems after the digital signal channel transfer to be measured, and the 3rd and door of first signal processing module 12 and the 3rd logical block 233 realize that by the function corresponding piece result of test can turn back in the DCS system and show in other instrument control systems.
As shown in Figure 2, preferred embodiment of the present invention also provides another implementation, difference is for having only a test signal among itself and Fig. 1, only the structure of secondary signal processing module changed accordingly, and all the other parts identical with label among Fig. 1 are not made change.
Test signal receiver module 22 is used for the acceptance test signal;
Signal receiving module 11 is used for receiving the digital signal that will transmit at digital signal passage to be measured;
First signal processing module 12, be used for carrying out the Digital Logic processing with digital signal with through test signal, not change digital signal, the signal that output signal after promptly handling through first signal processing module 12 and signal receiving module 11 are received is identical; And treated signal transmitted in digital signal passage to be measured;
Secondary signal processing module 230 is used for the signal through the processing of first signal processing module, and test signal and digital signal are carried out the Digital Logic processing, to draw test result;
Test result display module 24 is used to show test results.
Further, proving installation also comprises signal receiving module 11, is used for receiving the digital signal that will transmit at digital signal passage to be measured;
Test signal load module 21 is used for input test signal, and this test signal has only one, is " 0 " or " 1 ".
Test signal receiver module 22 is used for the test signal that acceptance test signal input module 21 is imported;
Test signal processing module 23 is used for the digital signal of signal receiving module 11 receptions and the test signal of test signal receiver module 22 are carried out the Digital Logic processing, to draw test result;
Further, secondary signal processing module 230 comprises,
Logical processing unit 2 2302 comprises or door two that one of them input end connects digital signal channel output end to be measured, to obtain the output signal of Logical processing unit 1; Or door another input end of two connects digital signal channel output end to be measured, to obtain the output signal of first signal processing module 12; Or the output terminal of door two connects test result display module 24, direct display result on display module 24;
Further, as shown in Figure 2, first signal processing module 12 comprises,
Or door three, one of them input end connects signal receiving module 11, incoming digital signal; Another input end connects test signal receiver module 22, inserts test signal; Or door two output terminal connects the input end of digital signal passage to be measured, and treated test signal is transmitted by digital signal passage to be measured;
With door one, one of them input end connects the output terminal of digital signal passage to be measured, and with the output end signal of access or door three, another input end connects the output terminal of digital signal passage to be measured, to obtain or door one output end signal, be connected signal output module 13 with the output terminal of door one.
When only importing a test signal, shown in each signal table 2 specific as follows:
Each signal condition during test signal of table 2
| Test signal | Digital signal in the passage to be measured | Output signal | Test result |
| 0 | 0 | 0 | 1 |
| 0 | 1 | 1 | 1 |
| 1 | 0 | 0 | 1 |
| 1 | 1 | 1 | 1 |
By each signal in the table 2 as can be known, test signal does not influence the signal that transmits in the digital signal passage to be measured for " 1 " or " 0 "; In actual on-line testing process, no matter test signal is " 1 " or " 0 ", and test result shows to be 1 all, has only that display result shows then that for " 1 " digital signal channel transfer to be measured is normal in the test result display module 24; If " 0 " represents that then digital signal channel transfer to be measured breaks down.
Equally, if the functional block by software realizes, then among Fig. 2, Logical processing unit 1 in the secondary signal processing module 230 is realized in the DCS system by the function corresponding piece, enter in other instrument control systems in the Logical processing unit 1 and first signal processing module 12 or after the output signal of the door three process digital signal channel transfer to be measured, and in other instrument control systems, realize that by the function corresponding piece result of test can turn back in the DCS system and show with door one and Logical processing unit 2 2302 in first signal processing module 12.
Preferred embodiment of the present invention also provides a kind of nuclear power station digital signal passage on-line testing method, mainly may further comprise the steps:
Acceptance test signal and the digital signal that will in digital signal passage to be measured, transmit;
Test signal and digital signal are carried out first logical process, not changing digital signal, and with treated test signal and digital signal by digital signal channel transfer to be measured;
Will be through the signal of first logical process, test signal and digital signal are carried out second logical process, obtaining test result, and show test results, and judge according to the test signal and the result of input whether the digital signal passage is normal.
As shown in Figure 3, in the time of below will be by the signal C1 of nuclear power station in measuring the digital data transmission passage that the ad hoc driving mechanism rack of safety (ESFAC:Engineering Safety Feature Actuation Cabinet) and rod control and rod position system are RGL system (RGL:Rod Position Indication and Rod Control) (C1 is that range surpasses 20%Pn locking hand, promotes the signal of regulating rod automatically in the middle of the neutron flux), the concrete detailed process of using nuclear power station digital signal passage on-line testing method of introducing.
S101, in two test signals of test signal load module 21 input, the first test signal test1 and the second test signal test2 are respectively " 0 " and " 1 " or " 1 " and " 0 ", two different test signals are imported in assurance;
S102, test signal receiver module 11 receives two test signal test1 and test2, and it is digital signal C1 among the ESFAC that synchronous signal receiver module 11 receives from the ad hoc driving mechanism rack of safety;
S103, in first logical block 231 by first non-goalkeeper's test signal test1 negate, again by first with the output signal of goalkeeper's first not gate and test signal test2 with, obtain first and output signal, i.e. first processing signals;
After second non-goalkeeper's test signal test2 negate in S104, second logical block 232, by second with the output signal of goalkeeper's second not gate and test1 with, and by first or goalkeeper with the result get with signal C1 again or after, obtain first or the door output signal, i.e. second processing signals, and with second processing signals through digital signal channel transfer to be measured;
S105, in first signal processing module 12, by second or goalkeeper C1 and first processing signals is got or after obtain the 3rd processing signals, with the 3rd processing signals process digital signal channel transfer to be measured, will through the 3rd processing signals of digital signal passage to be measured again with through second processing signals of digital signal passage to be measured with, with the result export as output signal, this moment, this output signal still was C1, though passed through a series of logical process, but can not trigger the C1 signal, promptly do not change the C1 signal, output C1 signal enters in the RGL system it;
S106, in the 3rd logical block 233 by the 3rd or goalkeeper through the 3rd processing signals of digital signal passage to be measured and through second processing signals of digital signal passage to be measured get or, and with get or the result show;
S107, judge according to display result whether the channel transfer of transmission of digital signals C1 is normal;
S108, when display result is " 1 ", the digital signal channel transfer is normal; When display result was " 0 ", the digital signal channel transfer broke down, and the slip-stick artist can carry out fault according to this result and get rid of.
When the test signal of input has only one, as shown in Figure 4, mainly may further comprise the steps:
S1, at test signal test of test signal load module 21 input, be " 0 " or " 1 ";
It is digital signal C1 among the ESFAC that S2, test signal receiver module 11 acceptance test signal test, synchronous signal receiver module 11 receive from the ad hoc driving mechanism rack of safety;
S3, in logical block one with after the test signal test negate, get with digital signal C1 again or, obtain processing signals one, and with processing signals one through digital signal channel transfer to be measured;
S4, in first signal processing module 12 with test signal test and digital signal C1 gets or, obtain processing signals two, and with processing signals two through digital signal channel transfer to be measured, it is entered in the RGL system;
S5, the processing signals one that in first signal processing module 12, will all pass through digital signal channel transfer to be measured and processing signals two-phase with, with the result export as output signal, it is entered in the RGL system;
S6, in the RGL system, by logical block two will all pass through the processing signals one of digital signal channel transfer to be measured and processing signals two is got or, with get or the result show;
S7, judge according to display result whether the channel transfer of transmission of digital signals C1 is normal;
S8, judge according to display result whether the transmission of digital signalling channel is normal, and when display result was " 1 ", the digital signal channel transfer was normal; When display result was " 0 ", the digital signal channel transfer broke down.
The present invention is by the logical process in first signal processing module and the secondary signal processing module, can be under the situation that does not influence digital signal, judge according to test result display module result displayed whether the signalling channel transmission is normal, if display result shows then that for " 1 " this signalling channel transmission is normal, method is simple, and the signal transmission security is reliable.
Should be understood that, for those of ordinary skills, can be improved according to the above description or conversion, and all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (10)
1. a nuclear power station digital signal passage online testing device is characterized in that, comprise,
The test signal receiver module is used for the acceptance test signal;
Signal receiving module is used for receiving the digital signal that will transmit at digital signal passage to be measured;
First signal processing module is used for described digital signal and described test signal are carried out first logical process, not changing described digital signal, and treated signal is transmitted in described digital signal passage to be measured;
The secondary signal processing module is used for the signal through described first signal processing module processing, and described test signal and described digital signal are carried out second logical process, to draw test result;
The test result display module is used to show described test result.
2. nuclear power station digital signal passage online testing device according to claim 1 is characterized in that described test signal comprises first test signal and second test signal;
Described secondary signal processing module comprises:
First logical block, comprise first not gate and first and the door, the input end of described first not gate connects described test signal receiver module, inserts described first test signal; Described first is connected described test signal receiver module with an input end of door, inserts described second test signal, described first with another input end be connected the output terminal of described first not gate;
Second logical block, comprise second with the door, second not gate and first or the door, the input end of described second not gate connects described test signal receiver module, inserts described second test signal; Described second is connected described test signal receiver module with an input end of door, inserts described first test signal, described second with another input end be connected the output terminal of described second not gate; Described first or the door an input end connect described signal receiving module, insert described digital signal, described first or the door the other end connect described second with the door output terminal, described first or the door output terminal connect described digital signal passage input end to be measured;
The 3rd logical block is used for carrying out logical process again through the signal of described second logic cell processes and the signal of handling through described signal processing module, to obtain the test result signal.
3. nuclear power station digital signal passage online testing device according to claim 2 is characterized in that, described first signal processing module comprises,
Second or the door, one of them input end connects described signal receiving module, inserts described digital signal; Another input end connect described first with the output terminal of door, described second or the output terminal of door connect the input end of described digital signal passage to be measured;
The 3rd with the door, one of them input end connects the output terminal of described digital signal passage to be measured, with insert described first or the door output end signal, another input end connects the output terminal of described digital signal passage to be measured, with obtain described second or the door output end signal, the described the 3rd with output terminal be connected described signal output module.
4. nuclear power station digital signal passage online testing device according to claim 3, it is characterized in that, described the 3rd logical block comprise the 3rd or the door, the described the 3rd or one of them input end of door connect the output terminal of described digital signal passage to be measured, with obtain first or the door output end signal, another input end connects the output terminal of described digital signal passage to be measured, with obtain described second or the door output end signal, the described the 3rd or the door output terminal connect described test result display module.
5. nuclear power station digital signal passage online testing device according to claim 1 is characterized in that described test signal comprises the 3rd test signal;
Described secondary signal processing module comprises:
Logical processing unit one, comprise not gate one and or door one, the input end of wherein said not gate one inserts described the 3rd test signal; An input end described or door one connects the output terminal of described not gate one, and another input end described or door one connects described signal receiving module, inserts described digital signal, and output terminal described or door one connects described digital signal passage input end to be measured;
Logical processing unit two comprises or door two that one of them input end connects described digital signal channel output end to be measured, to obtain the output signal of described Logical processing unit one; Another input end described or door two connects described digital signal channel output end to be measured, to obtain the output signal of described signal processing unit; Output terminal described or door two connects described test result display module;
Described first signal processing module comprises,
Or door three, one of them input end connects described signal receiving module, inserts described digital signal; Another input end connects described test signal receiver module, inserts described the 3rd test signal; Output terminal described or door two connects the input end of described digital signal passage to be measured;
With door one, one of them input end connects the output terminal of described digital signal passage to be measured, to insert output end signal described or door three, another input end connects the output terminal of described digital signal passage to be measured, to obtain output end signal described or door one, described output terminal with door one is connected described signal output module.
6. a nuclear power station digital signal passage on-line testing method is characterized in that, may further comprise the steps:
A, acceptance test signal and the digital signal that will in digital signal passage to be measured, transmit;
B, described test signal and described digital signal are carried out first logical process, not changing described digital signal, and with treated described test signal and described digital signal by described digital signal channel transfer to be measured;
C, will be through the signal of described first logical process, described test signal and described digital signal are carried out second logical process, obtaining test result, and show described test result, judge according to the described test signal and the described result of input whether the digital signal passage is normal.
7. nuclear power station digital signal passage on-line testing method according to claim 6 is characterized in that in the steps A, described test signal is two signals inequality, comprises first test signal and second test signal, is respectively " 0 " or " 1 ".
8. nuclear power station digital signal passage on-line testing method according to claim 7 is characterized in that step B comprises:
B1, with after the described first test signal negate with second test signal with, obtain first processing signals;
B2, with after the described second test signal negate with first test signal with, with the result get with described digital signal again or after, obtain second processing signals, and with described second processing signals through digital signal channel transfer to be measured;
B3, with described digital signal and described first processing signals is got or after obtain the 3rd processing signals, with described the 3rd processing signals through described digital signal channel transfer to be measured.
9. nuclear power station digital signal passage on-line testing method according to claim 8 is characterized in that step C comprises:
C1, will through described the 3rd processing signals of described digital signal passage to be measured again with through described second processing signals of described digital signal passage to be measured with, with the result export as output signal.
C2, will through described the 3rd processing signals of described digital signal passage to be measured and through described second processing signals of described digital signal channel transfer to be measured get or, and with get or the result show;
C3, judge according to display result whether the transmission of digital signalling channel is normal, and when described display result was " 1 ", described digital signal channel transfer was normal; When described display result was " 0 ", described digital signal channel transfer broke down.
10. nuclear power station digital signal passage on-line testing method according to claim 6 is characterized in that,
Test signal described in the steps A comprises the 3rd test signal, is " 0 " or " 1 ";
Step B comprises:
After described the 3rd test signal negate, get with described digital signal again or, obtain processing signals one, and with described processing signals one through digital signal channel transfer to be measured;
With described the 3rd test signal and described digital signal is got or, obtain processing signals two, and with described processing signals two through digital signal channel transfer to be measured;
Step C comprises:
With all pass through the described processing signals one of digital signal channel transfer to be measured and described processing signals two-phase with, with the result export as output signal;
With all pass through the described processing signals one of digital signal channel transfer to be measured and described processing signals two is got or, with get or the result show;
Judge according to display result whether digital signalling channel transmission is normal, and when described display result was " 1 ", described digital signal channel transfer was normal; When described display result was " 0 ", described digital signal channel transfer broke down.
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| CN111610389A (en) * | 2020-04-17 | 2020-09-01 | 中国核电工程有限公司 | Method for testing signal path |
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| CN102122433B (en) | 2012-07-18 |
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Address after: Futian District Shenzhen City, Guangdong province 518023 Shennan Road No. 69 Co-patentee after: CHINA GENERAL NUCLEAR POWER Corp. Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Address before: Futian District Shenzhen City, Guangdong province 518023 Shennan Road No. 69 Co-patentee before: CHINA GUANGDONG NUCLEAR POWER GROUP Co.,Ltd. Patentee before: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. |
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