CN107888408B - System and method for improving connection reliability of network measurement equipment - Google Patents
System and method for improving connection reliability of network measurement equipment Download PDFInfo
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- CN107888408B CN107888408B CN201710909788.1A CN201710909788A CN107888408B CN 107888408 B CN107888408 B CN 107888408B CN 201710909788 A CN201710909788 A CN 201710909788A CN 107888408 B CN107888408 B CN 107888408B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
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- H—ELECTRICITY
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Abstract
The invention discloses a system and a method for improving the connection reliability of network measuring equipment, wherein the system comprises a data processing analysis computer and the network measuring equipment, and the implementation method comprises the following steps: 1) the data processing and analyzing computer sends a data request instruction to the network measuring equipment; 2) the network measuring equipment returns the requested data and the state return code to the data processing and analyzing computer; 3) after the data processing analysis computer receives the returned request data and the returned state return code, whether the return code is wrong or not is judged; if the return code is wrong, returning to the step 1); if the return code is correct, the request and the reception of the data are finished, and the request and the reception of the next data are carried out. The network measurement equipment and the data processing and analyzing computer can improve the acquisition frequency within the allowed performance of the equipment, and can automatically carry out repair processing if the data is not qualified, thereby improving the reliability of network communication between the network measurement equipment and the data processing and analyzing computer.
Description
Technical Field
The invention relates to the technical field of nuclear power, in particular to a system for improving the connection reliability of network measurement equipment and an implementation method thereof.
Background
The traditional reactivity meter system adopts a USB cable or a special cable to connect the network measuring equipment and the data processing and analyzing computer, and the connection mode has the defects of low line power supply, relatively slow transmission speed, shielding problem and incapability of long-distance transmission, which requires that the network measuring equipment and the data processing and analyzing computer of the reactivity meter system must be separated by a very short distance. The line construction cost of the actual power plant is very high, and the time consumption of the line reconstruction process is long.
The network connection mode has the advantages of high transmission speed and long transmission distance, and the network measuring equipment of the reactivity meter can be conveniently connected with a plurality of data processing and analyzing computers in the network connection mode. The network transmission supports the mode of a TCP/IP protocol, the TCP/IP protocol is reliable under the condition that a physical line connected with equipment is stable, and the correctness of data transmission can be ensured.
However, the environment in the power plant is complex and the cost per test is very high, which puts higher demands on the reliability of the data transmission. Through a large number of tests, it is actually found that the network measuring equipment and the data processing and analyzing computer of the reactivity meter system have a small probability of short transmission disconnection or receiving invalid data under long-distance and long-time data transmission. There are many possibilities for the specific reasons, but the cost of conducting the tests at the plant is high, which requires that the equipment is not able to present this risk.
By adopting the network-based reliable transmission method, a reliable recovery mechanism can be provided when a physical line connected with the equipment is disconnected for a short time or unqualified data is received. Therefore, when network communication accidents happen in the test process, the test data can be found in time and recovered to a normal state as soon as possible without influencing the test data, and the correctness of data transmission is ensured.
Disclosure of Invention
The invention aims to provide a system and a method for improving the connection reliability of network measuring equipment aiming at the defects in the prior art so as to improve the reliability of network communication between the network measuring equipment and a data processing analysis computer.
In order to achieve the object of the present invention, in one aspect, the present invention provides a system for improving connection reliability of a network measurement device, the system comprising a network measurement device and a data processing and analyzing computer, the network measurement device comprising a status checking module, the data processing and analyzing computer comprising data analyzing software;
wherein, the network measuring equipment is connected with the data processing and analyzing computer through a network cable.
Further, the status checking module is configured to collect status data of the network measurement device, and the data analysis software is configured to send a data request instruction.
In order to achieve the object of the present invention, as the same inventive concept, on the other hand, the present invention further provides a method for improving connection reliability of network measurement equipment corresponding to the above system, where the method includes the system for improving connection reliability of network measurement equipment, and the method specifically includes the following steps:
1) the data processing and analyzing computer sends a data request instruction to the network measuring equipment;
2) after receiving the data request instruction, the network measurement equipment returns the requested data and the state return code to the data processing and analyzing computer;
3) after the data processing analysis computer receives the returned request data and the returned state return code, judging whether the return code is wrong or not;
if the return code is wrong, returning to the step 1);
if the return code is correct, the request and the reception of the data are finished, and the request and the reception of the next data are carried out.
Further, the status return code is status data of the network measurement device acquired by the status check module, and the data analysis software is used for judging whether the return code is wrong or not.
Further, in the step 3), the number of times of returning to the step 1) is limited, and if the correct return code cannot be received within the limited number of times, the data processing analysis computer sends a network communication resetting instruction to the network measurement device.
Further, in the step 2), the network measurement device returns the requested data and the status return code to the data processing and analyzing computer, and also returns the heartbeat data mark to the data processing and analyzing computer;
in the step 3), the data processing and analyzing computer rewrites the heartbeat data mark after the request data is correctly received, and returns the rewritten heartbeat data mark to the network measuring equipment in the next data request instruction.
Further, the step 3) further includes that the network measurement device sends the next data to the data processing and analyzing computer according to the next data request instruction after detecting that the previous data is normally received in the next data request instruction.
Further, the method is provided with a reset network communication waiting time, wherein the network resetting times meet the following conditions:
C≤ A/B
wherein, A is the collection interval time of the state checking module, B is the reset network communication waiting time, C is the reset network connection times, if the A/B result has decimal, the decimal is removed and rounded.
Compared with the prior art, the invention has the following beneficial effects:
1) the invention can make the network measuring equipment of the reactivity meter and the data processing and analyzing computer be arranged separately in a long distance.
2) The method ensures that the measured data can still be recovered to a normal state when short unexpected disconnection occurs in the network transmission process.
3) When equipment connection is failed, the network connection can be rapidly identified and reestablished.
4) The line reconstruction cost of the physical test system of the nuclear power plant is reduced, and the reconstruction period is shortened.
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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flow chart of a method for improving connection reliability of a network measurement device according to the present invention.
In the figure, a network measuring device 1, a state checking module 2, a data processing and analyzing computer 3, data analyzing software 4, a data request instruction 5, a network communication resetting instruction 6, request data 7, a state return code 8 and a heartbeat data mark 9.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Example 1
The present embodiment is a system for improving the connection reliability of a network measurement device 1, the frame of the system is shown in fig. 1, and the system includes a network measurement device 1 and a data processing analysis computer 3; the network measuring equipment 1 and the data processing and analyzing computer 3 are connected through a network cable, high-cost line construction transformation of a power plant is not needed, and the network measuring equipment 1 of the reactivity meter system can be remotely connected with the data processing and analyzing computer 3 through the network cable.
In this embodiment, the network measurement device 1 includes a data acquisition status check module 2, the data processing and analyzing computer 3 includes data analyzing software 4 for sending a data request instruction 5, the data processing and analyzing computer 3 is configured to send the data request instruction 5 and a reset network communication instruction 6 to the network measurement device 1, and the network measurement device 1 is configured to return requested data 7 and a status return code 8 to the data processing and analyzing computer 3 after receiving the request data 7, or perform network reset after receiving the reset network communication instruction 6.
In the network data transmission process, the heartbeat data mark 9 is added by the network measuring equipment 1, and the heartbeat data mark 9 is rewritten by the data processing and analyzing computer 3.
The system is suitable for reliable data transmission in complex power plant environments. The network measuring device 1 and the data processing and analysis computer 3 of the reactivity meter system should normally be placed together with a connection distance of not more than 5 meters. However, the purchase cost of the RPN power range cable of the power station signal source connection reactivity meter system network measuring device 1 is high, and the reconstruction period after purchase is long. Without power range cable modification, this requires that the network measuring device 1 of the reactivity meter system be placed in a machine room 15 meters high up in the power station, and the data processing and analysis computer 3 be placed in a main control room 20 meters high up in the power station, so that the connection distance between the network measuring device 1 and the data processing and analysis computer 3 is more than 30 meters. If the conventional USB cable or dedicated cable is used, the problem of long-distance transmission cannot be solved, the system of this embodiment uses a method in which the network cable connects the network measurement device 1 and the data processing and analyzing computer 3, supports long-distance transmission, and adapts to the above-described situation.
Example 2
As the same inventive concept, this embodiment provides a method for improving the connection reliability of the network measurement device 1, and the method is an implementation method corresponding to the system for improving the connection reliability of the network measurement device 1 in embodiment 1. Because high-frequency network communication is adopted, the network measuring equipment 1 can generate unqualified communication data after interacting with the data processing and analyzing computer 3 for a long time, and therefore the data processing and analyzing computer 3 and the network measuring equipment 1 in the embodiment improve the reliability of mutual communication by using a software algorithm and state confirmation.
The method of the embodiment specifically comprises the following steps 1) to 3):
1) the data processing and analyzing computer 3 sends a data request instruction 5 to the network measuring equipment 1;
2) after receiving the data request instruction 5, the network measurement device 1 returns the requested data 7, the status return code 8 and the heartbeat data mark 9 to the data processing and analyzing computer 3; the status return code 8 is status data of the network measurement device 1 acquired by the status check module 2, and the data analysis software 4 is used for judging whether the return code is wrong or not.
In this step, the network measuring device 1 realizes the status check of its own data acquisition through the status check module 2, and the network measuring device 1 sends back the requested data 7 to the data analysis computer each time, and the communication is accompanied by the return code of the status check and the heartbeat data mark 9.
3) After the data processing and analyzing computer 3 receives the returned request data 7, the state return code 8 and the heartbeat data mark 9, the data analyzing software 4 judges the return code;
if the return code is wrong, returning to the step 1); the number of times of returning to step 1) is limited, preferably within 10 times, and if the correct return code cannot be received within the limited number of times, the data processing analysis computer 3 sends a network communication resetting instruction 6 to the network measurement device 1.
The network resetting needs to be waited for a certain time in a software algorithm, the waiting time is preferably 50 ms-100 ms, the number of times of network resetting connection is given in the software algorithm according to the parameter performance of the equipment, and specifically, the number of times of network resetting should meet the following conditions:
C≤ A/B
wherein, A is the collection interval time of the state checking module, B is the reset network communication waiting time, C is the reset network connection times, if the A/B result has decimal, the decimal is removed and rounded.
If the return code is correct, the data analysis software 4 rewrites the heartbeat data mark 9 after the request data 7 is correctly received, the request and the reception of the data are finished, the request and the reception of the next data are carried out, the rewritten heartbeat data mark 9 is returned to the network measurement device 1 in the next data request instruction 5, and the network measurement device 1 sends the next data to the data processing analysis computer 3 according to the next data request instruction 5 after detecting that the previous data is normally received in the data request instruction 5.
The method of the embodiment aims at the problem of network connection of nuclear power equipment, simplifies the network connection of the nuclear power equipment, and effectively guarantees the reliability of the network connection. In the method, a heartbeat data mark 9 is added into a transmitted data packet in the network data transmission process, the mark can be rewritten and informed to the network measuring equipment 1 after the data receiving is finished by the data processing analysis computer 3, and the network measuring equipment 1 sends the next section of data to the data processing analysis computer 3 after the network measuring equipment 1 detects that the data is normally received.
After the method is adopted, the acquisition frequency between the network measuring equipment 1 and the data processing analysis computer 3 can be improved within the allowed performance of the equipment, if the unqualified data is met, the repair processing can be automatically carried out, and according to the configured connection times and waiting time conditions, the automatic repair can be carried out under the condition that the transmission physical network cable is temporarily disconnected with the equipment, so that the reliability of network communication between the network measuring equipment 1 and the data processing analysis computer 3 is improved.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described system embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; 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 the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A method for improving the connection reliability of network measuring equipment is applied to a system for improving the connection reliability of the network measuring equipment, and is characterized in that the system comprises the network measuring equipment and a data processing and analyzing computer, wherein the network measuring equipment comprises a state checking module for acquiring the state data of the network measuring equipment, and the network measuring equipment realizes the state checking of self data acquisition through the state checking module; the data processing and analyzing computer comprises data analyzing software for sending a data request instruction; the data processing and analyzing computer is further used for sending a network resetting communication instruction to the network measuring equipment, and the network measuring equipment is further used for returning the requested data and the state return code to the data processing and analyzing computer after receiving the data requesting instruction or performing network resetting after receiving the network resetting communication instruction; the network measuring equipment is connected with the data processing and analyzing computer through a network cable;
the method comprises the following steps:
1) the data processing and analyzing computer sends a data request instruction to the network measuring equipment;
2) after receiving the data request instruction, the network measurement equipment returns the requested data and the state return code to the data processing and analyzing computer;
3) after the data processing analysis computer receives the returned request data and the returned state return code, judging whether the return code is wrong or not;
if the return code is wrong, returning to the step 1);
if the return code is correct, ending the request and the reception of the data, and performing the request and the reception of the next data;
the state return code is state data of the network measuring equipment acquired by the state checking module, and whether the return code is judged to be wrong or not is judged by the data analysis software;
in the step 3), the number of times of returning to the step 1) is limited, and if the correct return code cannot be received within the limited number of times, the data processing analysis computer sends a network communication resetting instruction to the network measurement device.
2. The method for improving the connection reliability of the network measuring equipment according to claim 1, wherein in the step 2), the network measuring equipment returns the requested data and the status return code to the data processing and analyzing computer, and also returns the heartbeat data mark to the data processing and analyzing computer;
in the step 3), the data processing and analyzing computer rewrites the heartbeat data mark after the request data is correctly received, and returns the rewritten heartbeat data mark to the network measuring equipment in the next data request instruction.
3. The method as claimed in claim 2, wherein the step 3) further includes the network measurement device sending the next data to the data processing and analyzing computer according to the next data request command after detecting that the previous data has been received normally in the next data request command.
4. The method for improving the connection reliability of the network measurement equipment according to claim 3, wherein the method is provided with a network communication resetting waiting time, wherein the network resetting times meet the following conditions:
C≤A/B
wherein, A is the collection interval time of the state checking module, B is the reset network communication waiting time, C is the reset network connection times, if the A/B result has decimal, the decimal is removed and rounded.
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