A domain controller based instrumentation system

Abstract

The application provides an instrument system based on a domain controller module, wherein the system comprises an instrument, an instrument monitoring module, a domain controller module and a management platform; the instrument and the instrument monitoring module are bidirectionally connected; the instrument monitoring module and the domain controller module are bidirectionally connected; the domain controller module and the management platform are bidirectionally connected; the domain controller module comprises a plurality of domain controllers which are connected in communication with each other; all the domain controllers run the same version and updated operating systems; when a domain controller in the corresponding area fails, the instrument monitoring module selects other optimal domain controllers for data transmission; through the system, real-time monitoring and analysis of instruments in a production site are realized; when a domain controller in the corresponding area fails, the system can automatically select other available optimal domain controllers for data transmission, thereby effectively avoiding problems such as data transmission interruption and data loss caused by the failure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of instrument systems, and in particular to an instrument system based on a domain controller. BACKGROUND

[0002] In the production process of manufacturing enterprises, it is often necessary to monitor and control various process parameters and equipment states to ensure the normal operation of the production line. For example, the temperature, humidity, air pressure and other parameters of the production workshop need to be monitored in real time; the equipment state needs to be detected in real time, including the voltage, current, power and other parameters of the equipment, as well as the maintenance situation of the equipment, etc. In addition, the quality and yield data of the product need to be monitored in real time so as to timely adjust the production plan and process flow and provide effective optimization solutions for the production line. In such a production process, the instrument system based on the domain controller can play an important role; however, how to set the domain controller, how to allocate and select the domain controller, and how to more efficiently manage the domain controller to realize more efficient management and normal operation of the instrument system under the premise of failure are problems that need to be considered. SUMMARY

[0003] The present application provides an instrument system based on a domain controller module to solve the above problems:

[0004] The present application provides an instrument system based on a domain controller module, which comprises:

[0005] an instrument, an instrument monitoring module, a domain controller module and a management platform;

[0006] The instrument is bidirectionally connected with the instrument monitoring module, the instrument monitoring module is bidirectionally connected with the domain controller module, and the domain controller module is bidirectionally connected with the management platform.

[0007] Further, an instrument system based on a domain controller module comprises:

[0008] a temperature instrument, a pressure instrument, a flow instrument, a humidity instrument, a current instrument and a voltage instrument, the instruments are classified and numbered according to types, and the positions of different instruments are marked.

[0009] Further, an instrument system based on a domain controller module comprises:

[0010] The data acquisition module is connected to the instrument and is responsible for acquiring data of the instrument and transmitting the data to the instrument monitoring module; the data of the instrument includes instrument data, instrument equipment information, the state of the instrument and fault information of the instrument;

[0011] The data conversion module converts the collected data into a standard format and transmits it to the domain controller module.

[0012] Further, an instrument system based on a domain controller module, the instrument monitoring module is equipped with a display device for monitoring the working state of various instruments and instrument data.

[0013] Further, an instrument system based on a domain controller module, the domain controller module is connected to a local network for realizing remote control and monitoring of the instrument, and real-time storage and processing of the data collected by the instrument, and uploading the processed data to a management platform.

[0014] Further, an instrument system based on a domain controller module, the domain controller module contains multiple domain controllers, which are connected in communication with each other; all domain controllers run the same version and updated operating system;

[0015] The domain controller is arranged according to the regional location of the instrument, and the position information of the domain controller is recorded;

[0016] For each controller, the following conditions need to be met: the maximum amount of data that the domain controller can handle at the same time is Ci, and the maximum amount of data that needs to be processed in the region is Qm; then Qm=S*N; where; S is the average request size, N is the maximum request amount; the number of processor cores H, the processor frequency F, the number of instructions per cycle Z, the parallelism B, the maximum data transmission rate V, is the average network speed, NV max is the maximum network speed.

[0017] Further, an instrument system based on a domain controller module, the management platform is used for centralized management and monitoring of the running state and data information of various instrument devices;

[0018] The management platform is responsible for integrating and analyzing the data, and allocating resources according to the analysis results;

[0019] The management platform manages the rights of users and transmits the rights of users to the domain controller module, and performs user management, right setting, user group management and role authorization operation through the domain controller module;

[0020] The management platform includes a pre-warning and alarm module for pre-warning and / or alarming abnormal operation.

[0021] Further, an instrument system based on a domain controller module, the management platform sets a domain controller monitoring module to monitor the running state of the domain controller, including:

[0022] The domain controller monitoring module collects log data of the domain controller and analyzes and evaluates the log data;

[0023] The domain controller monitoring module selects a relatively idle time period and a fault interval g of the domain controller through the log data; the domain controller monitoring module sends a request to the domain controller to detect a response state of the domain controller; the domain controller monitoring module selects a relatively idle time period in a day as a time period for sending the request, a preset sending request time interval is J, and the next request time interval J1 is adjusted according to the fault interval, that is, J1=J*(1-0.1 / g).

[0024] The domain controller monitoring module obtains an average response time T and a maximum response time Tm of the domain controller through the log data; if the domain controller exceeds T ′ , the monitoring program determines that the domain controller is faulty; wherein, T ′ =Tm+T*NV / (2*NV max ); NV is a current network speed; NV max is a maximum network speed.

[0025] When the domain controller is detected to be faulty, a reminder is sent to an instrument monitoring module and a background terminal corresponding to a region.

[0026] Further, an instrument system based on a domain controller module, the instrument monitoring module transmits data to the domain controller module; the instrument system comprises:

[0027] The instrument monitoring module preferentially selects a domain controller in a region to which the instrument monitoring module belongs to transmit data, and when the domain controller in the region to which the instrument monitoring module belongs is faulty, the instrument monitoring module selects another optimal domain controller to transmit data; a score of the domain controller is calculated, and a domain controller with the highest score is the optimal controller; wherein, a calculation method of the score is as follows:

[0028]

[0029] An average response time Ti of a certain domain controller in normal operation, a signal strength Sti of the certain domain controller received by the instrument monitoring module; a data amount Qi currently processed by the certain domain controller in normal operation, a data amount Q g to be transmitted in a fault region; a maximum data amount Ci that can be simultaneously processed by the certain domain controller; and n is a number of the domain controllers in normal operation.

[0030] Further, an instrument system based on a domain controller module, the management platform classifies and arranges instrument data according to instrument types and numbers; under the same instrument, historical monitoring data are analyzed, including: determining an abnormal parameter threshold and a pre-warning rule; performing data processing and analysis on collected data; and performing pre-warning reminding according to a processing and analysis result.

[0031] The present application has the following advantages: through the bidirectional connection and the domain controller module, the instrument data is uploaded to the instrument monitoring module in real time, and then the change of the instrument data is displayed through the management platform, realizing real-time monitoring and analysis of the production site instrument; through comprehensive analysis of the instrument data, real-time monitoring, early warning and prediction of the yield data of each link of the production process, problems in the production process can be found in advance, measures can be taken in time to solve the problems, and the production efficiency is maximized; by classifying and numbering the instruments by type and marking the area position, the instruments that need to be monitored can be found quickly, manual operation in the traditional recording method is avoided, human error is reduced, and the data accuracy is improved; through real-time monitoring and analysis of the running data of the instrument, the maintenance and maintenance of the instrument can be arranged in time, the frequency of manual inspection is reduced, the operation cost is reduced, and the stability and safety of the production line are improved; each domain controller needs to meet certain conditions to ensure that it can complete the maximum data volume that needs to be processed in the region and has a certain surplus, so that when a domain controller in the region fails, it can temporarily process the data of the failed region; the system can monitor the running state of the domain controller in real time, including the response time and error information, so that the domain controller failure can be found in time to avoid delay and loss; the system selects the relatively idle time period and the fault interval time of the domain controller through log data, sends a request to detect the response state of the domain controller at regular intervals, and adjusts the next request time interval according to the fault interval time, which can adaptively respond to different fault conditions; when the domain controller fails, the system can send a reminder to the instrument monitoring module and the background terminal of the corresponding region to notify the relevant personnel to handle the problem in the first time, so that the personnel can solve the problem in time; the system calculates the score of each domain controller using the score calculation method of the domain controller, and selects the domain controller with the highest score as the optimal controller, thereby realizing intelligent domain controller management and data transmission; when the domain controller in the region fails, the system can automatically select other available optimal domain controllers for data transmission, effectively avoiding data transmission interruption and data loss caused by failure; the score calculation considers the current data volume and fault region data volume, signal strength and processing time of the domain controller, and obtains the optimal score through different weights and calculations. When the domain controller fails, the system can automatically feed back the fault information to the management platform and handle the fault in time, thereby improving the efficiency and accuracy of fault handling; the system can select the domain controller with the highest score according to the response time, signal strength and processing capacity of the normally operating domain controller, so as to realize efficient transmission and processing of data, and improve the overall operation efficiency of the system. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic diagram of an instrument system based on a domain controller module. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which it is understood that the preferred embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0034] In the production process, the stability and reliability of the equipment are crucial to ensure production efficiency and quality; the instrument system based on domain controller can monitor and record the status and operation of various equipment in real time, such as voltage, current, power and other parameters, or equipment failure information and maintenance, etc. Through the analysis and judgment of these data, the equipment failure or early warning signal can be found in time, the cost of equipment maintenance and downtime can be reduced, and the service life of the equipment can be improved; the instrument system based on domain controller can monitor and manage the product quality and yield data in the production process, help enterprises quickly find and solve the problems in production, and improve the production efficiency and product quality. For example, the temperature, quality, size, weight and other parameters of the products on the production line can be recorded in real time through the instrument monitoring module, and these data can be transmitted to the management platform for analysis and statistics.

[0035] The instrument system based on the domain controller module of the present embodiment comprises:

[0036] an instrument, an instrument monitoring module, a domain controller module and a management platform;

[0037] The instrument is bidirectionally connected with the instrument monitoring module, the instrument monitoring module is bidirectionally connected with the domain controller module, and the domain controller module is bidirectionally connected with the management platform; the instrument comprises:

[0038] temperature instrument, pressure instrument, flow instrument, humidity instrument, current instrument and voltage instrument, the instruments are classified and numbered according to types, and the area positions of different instruments are marked; for example, whether the instrument is a temperature instrument or a pressure instrument, the location in the factory, which floor, which production line, etc.

[0039] The working principle and effects of the above technical solution are as follows: the instrument system based on the domain controller module of the embodiment is highly consistent with diversified production site environments such as factories, workshops, and production lines in design, instrument data is uploaded to the instrument monitoring module in real time through bidirectional connection and the domain controller module, and then the change of the instrument data is displayed through the management platform to realize real-time monitoring and analysis of the production site instruments; through comprehensive analysis of the instrument data, real-time monitoring, early warning, and prediction of yield data of each link in the production process, problems in the production process can be found in advance, measures can be taken in time to solve the problems, and the production efficiency can be maximized; by classifying and numbering the instruments by type and marking the area position, the instruments that need to be monitored can be found quickly, manual operation in the traditional recording mode is avoided, human error is reduced, and the accuracy of the data is improved; through real-time monitoring and analysis of the running data of the instruments, the maintenance and repair of the instruments can be arranged in time, the frequency of manual inspection is reduced, the operating cost is reduced, and the stability and safety of the production line are improved; the system has good scalability, supports adding more types of instrument equipment and increasing more data indicators, and meets the growing and changing needs.

[0040] The instrument system based on the domain controller module of the embodiment, the instrument monitoring module is in communication connection with each instrument respectively, and the instrument monitoring module comprises a data acquisition module and a data conversion module.

[0041] The data acquisition module is connected to the instrument and is responsible for acquiring the data of the instrument and transmitting the data to the instrument monitoring module; the data of the instrument includes instrument data, instrument equipment information, the state of the instrument, and fault information; the data acquisition module is usually hardware connected with the instrument, and can communicate with various types of instruments and equipment through various communication protocols and interfaces, such as analog signals, digital signals, RS-232, RS-485, Ethernet, etc.

[0042] Generally, sensors are used to collect parameters such as pressure, flow, and current of the instrument. The sensors convert these physical parameters into electrical signals and convert them into digital signals through analog converters.

[0043] The data conversion module converts the collected data into a standard format and transmits it to the domain controller module; the data conversion module mainly converts instrument data of multiple different types and different protocols into a standard format; a microcontroller or a single-chip microcomputer is usually used as a processor to control the sampling frequency by programming and process and format-convert the collected data; for example, into ASCII code or binary numbers, etc. for easy storage and transmission; the format of the converted data is determined according to the specific application scenario, and is usually adjusted according to the communication protocol or the data storage format.

[0044] The working principle and effect of the above technical solution are as follows: the instrument monitoring module of the embodiment adopts a professional data acquisition and conversion module, can realize the acquisition and conversion of instrument data of different types and different protocols, the data acquisition module can communicate with various types of instruments and equipment, and supports multiple communication protocols and interfaces, can cope with various complex field environments and different types of instruments and equipment, reduces the problem of mutual incompatibility of production field equipment; the data acquisition module uses a sensor to collect instrument parameters, is reliable and stable, can collect and process data with high precision, and can set parameters such as collection frequency and storage capacity, fully meets different collection requirements, and improves the credibility of data; the data conversion module can convert the collected data into standard data, and supports multiple conversion formats, which can be adjusted according to actual application needs, improving the readability and usability of data; the collected data is transmitted to the domain controller module through the data conversion module, realizing real-time transmission and storage of data, ensuring the efficiency and security of data transmission; at the same time, real-time data transmission and analysis can timely discover and correct problems in the production process, improving production efficiency and quality. The design of the data acquisition and conversion module can be customized according to the production environment and needs, and can easily cope with complex environments. At the same time, the module also supports various expansion interfaces and standard protocols, which can easily realize the expansion and upgrading of the system.

[0045] The instrument system based on the domain controller module of the embodiment is equipped with a display device for monitoring the working state and instrument data of various instruments; the instrument monitoring module is located in the instrument field, and is mainly used for monitoring the state and operation of the instrument equipment in real time and providing real-time data and information. The instrument monitoring module is usually an embedded system or a microcomputer, mainly communicates with the instruments of the collection object through a field bus or other communication methods, and reads and analyzes various data and parameters of the instruments in real time, such as measurement values, alarm states, operation commands, etc.; the instrument monitoring module usually processes and filters the data to a certain extent, such as removing invalid data or checking the accuracy of the data.

[0046] The working principle and effect of the above technical solution are as follows: through the instrument monitoring module, the user can monitor and control the working state and data of various devices in the instrument field in real time, which can ensure the efficiency and stability of the production process, and also can improve the service life of the equipment; the instrument monitoring module can store and backup the collected data, provide basic functions such as data download and analysis display, and facilitate the user to process and manage the data later, which can effectively improve the reliability and accuracy of the data. The user interface of the instrument monitoring module is simple, intuitive and customizable, the user can easily operate and manage, improve the production efficiency and quality, and reduce the operation and maintenance cost and risk.

[0047] The domain controller module is connected to the local network to realize remote control and monitoring of the instrument, and real-time storage and processing of the data collected by the instrument, and uploading of the processed data to the management platform.

[0048] The domain controller module comprises a plurality of domain controllers, which are connected in communication with each other; all the domain controllers run the same version and updated operating system;

[0049] The domain controllers are arranged according to the regional positions of the instruments, and the position information of the domain controllers is recorded. For example, a factory is divided into different buildings, floors and functional areas, and the domain controllers are arranged according to the buildings, functional areas and floors; for each controller, the following conditions need to be met: the maximum data amount that can be processed by the domain controller is Ci, and the maximum data amount that needs to be processed in the region is Qm; then Qm=S*N; wherein S is the average request size, N is the maximum request amount; the number of processor cores H, the processor frequency F, the number of instructions per cycle Z, the parallelism B, and the maximum data transmission rate V, is the average network speed, and NV max is the maximum network speed.

[0050] The working principle and effects of the above technical solution are as follows: through the domain controller module, the user can realize control and monitoring of remote instruments, improve production efficiency and quality, and avoid errors and losses caused by manual operation; the domain controller module can realize real-time storage and processing of the data collected by the instrument, improve the reliability and accuracy of the data, and improve the analysis and mining ability of the data; the domain controller module can realize communication and collaborative management among multiple domain controllers, effectively avoiding equipment failure and data loss; the domain controller module adopts a safe and reliable data transmission method to ensure the safety and stability of the data and avoid malicious theft and tampering of the data; the flexible and extensible domain controller module can easily manage more or more complex instrument devices and support multiple communication methods and interfaces, and has wider applicability; each domain controller needs to meet certain conditions to ensure that it can handle the maximum amount of data in the region and has a certain surplus, so that in case of failure of a domain controller, the data of the failed region can be temporarily processed.

[0051] The embodiment of the application discloses an instrument system based on a domain controller module, and the management platform is used for centralized management and monitoring of the running status and data information of various instrument devices.

[0052] The management platform is responsible for integrated analysis of the data, and resource allocation according to the analysis results.

[0053] The management platform performs permission management on the user, and transmits the permission of the user to a domain controller module, and performs user management, permission setting, user group management and role authorization operation through the domain controller module;

[0054] The management platform comprises a pre-warning and alarm module, and pre-warns and / or alarms abnormal operation.

[0055] The working principle and effects of the above technical solution are as follows: the management platform can centrally manage and monitor the running status and data information of various instrument devices, reduces the enterprise management cost, and improves the management efficiency and accuracy; the management platform is responsible for integrating and analyzing data, and performs resource allocation according to the analysis result, improves the resource utilization rate and efficiency, and enables the enterprise to better optimize product manufacturing and production process; the management platform can perform permission management on the user, and transmits the permission of the user to a domain controller module, and performs user management, permission setting, user group management and role authorization operation through the domain controller module, so that the management of the enterprise is more standardized and scientific; the management platform comprises a pre-warning and alarm module, and pre-warns and / or alarms abnormal operation, discovers and solves problems in time, and guarantees the safety and stability of the equipment and production.

[0056] In summary, the instrument system based on the domain controller module of the embodiment can centrally manage and monitor instrument devices, integrate and analyze data, and allocate resources, realize user management and permission setting, and has a pre-warning and alarm function, thereby improving the efficiency and accuracy of enterprise production management.

[0057] The embodiment of the instrument system based on the domain controller module, the management platform sets a domain controller monitoring module to monitor the running state of the domain controller, comprising:

[0058] The domain controller monitoring module collects log data of the domain controller and analyzes and evaluates the log data;

[0059] The domain controller monitoring module selects a relatively idle time period and a fault interval time g of the domain controller through the log data; the domain controller monitoring module detects the response state of the domain controller by sending a request to the domain controller at a regular time; the domain controller monitoring module selects a relatively idle time period in a day as a time period for sending a request, and pre-sets a request time interval J as J, and adjusts the next request time interval J1 according to the fault interval time, J1=J*(1-0.1 / g);

[0060] The domain controller monitoring module obtains the average response time T and the maximum response time Tm of the domain controller through the log data; if the domain controller does not respond or returns error information within T ′ , the monitoring program determines that the domain controller is faulty; wherein, T ′ =Tm+T*NV / (2*NV max) ; NV is the current network speed; NV max is the maximum network speed;

[0061] When a domain controller failure is detected, an alarm is sent to the instrument monitoring module and the background terminal of the corresponding area.

[0062] The working principle of the above technical solution is as follows: the system can monitor the running state of the domain controller in real time, including the response time and error information, and can timely find the domain controller failure to avoid delay and loss due to failure; the system selects the relatively idle time period and the failure interval time of the domain controller through log data, sends a request at regular intervals to detect the response state of the domain controller, and adjusts the next request time interval according to the failure interval time, which can adaptively cope with different failure conditions; when a domain controller failure is detected, the system can send an alarm to the instrument monitoring module and the background terminal of the corresponding area to notify the relevant personnel for processing at the first time, so that the personnel can timely solve the problem and ensure the normal operation of the system; the system can realize the optimized management and standardized operation of the domain controller through the collection, analysis and evaluation of the log data of the domain controller, which improves the management efficiency and monitoring accuracy and reduces the management cost and risk.

[0063] The embodiment of the application is an instrument system based on a domain controller module, wherein the instrument monitoring transmits data to the domain controller module; the system comprises:

[0064] The instrument monitoring module preferentially selects the domain controller in the area to which the instrument monitoring module belongs for data transmission, and when the domain controller in the area to which the instrument monitoring module belongs fails, the instrument monitoring module selects other optimal domain controller for data transmission; the score of the domain controller is calculated, and the domain controller with the highest score is the optimal controller, wherein the calculation method of the score is as follows:

[0065]

[0066] The average response time Ti of a certain domain controller in normal operation, the signal strength Sti of a certain domain controller received by the instrument control module; the data amount Qi currently processed by a certain domain controller in normal operation, and the data amount Q needed to be transmitted by the failure area g ; the maximum data amount Ci that can be processed by a certain domain controller at the same time; n is the number of domain controllers in normal operation;

[0067] When the instrument monitoring module sends data to the domain controller, and the domain controller does not respond within a certain time, it means that the domain controller fails, the instrument monitoring module automatically selects the optimal domain controller available and feeds back the failure information to the management platform; or the instrument monitoring module selects the optimal controller available after receiving the early warning of the management platform.

[0068] The working principle and effect of the above technical solution are as follows: the system calculates the scores of each domain controller by using the score calculation method of the domain controller, and selects the domain controller with the highest score as the optimal controller, thereby realizing intelligent domain controller management and data transmission; when a domain controller in the corresponding area fails, the system can automatically select other available optimal domain controllers for data transmission, effectively avoiding data transmission interruption and data loss caused by failure and the like; wherein the score calculation considers the current data processing amount and the fault area data amount, signal strength and processing time of the domain controller, and the optimal score is obtained through different weights and calculations. When the domain controller fails, the system can automatically feed back the fault information to the management platform and timely process the fault, thereby improving the efficiency and accuracy of fault processing; the system can select the domain controller with the highest score for data transmission according to the response time, signal strength and processing capacity and the like of the normally operating domain controller, thereby realizing efficient data transmission and processing and improving the overall operation efficiency of the system.

[0069] The embodiment is an instrument system based on a domain controller module, the management platform classifies and arranges instrument data according to instrument types and numbers; under the same instrument, historical monitoring data are analyzed, including: determining abnormal parameter thresholds and early warning rules; processing and analyzing collected data; and early warning and reminding according to processing and analysis results.

[0070] The working principle and effect of the above technical solution are as follows: by analyzing the historical monitoring data and combining actual needs and product specifications and the like, the thresholds of abnormal parameters under different types of instruments are determined. In this way, targeted abnormal detection and early warning can be realized, abnormal conditions of the instruments can be found in time, and the accuracy and timeliness of monitoring can be improved.

[0071] Early warning rules are set: according to the monitoring needs of different types of instruments, corresponding early warning rules are set. For example, for temperature instruments, an automatic message sending reminder can be set when the temperature is too high or too low. In this way, the monitoring process can be made more intelligent and efficient, and the ability to find and process abnormal data can be improved; processing and analyzing collected data can better understand and identify data and improve the accuracy of judging the instrument state. At the same time, through data analysis, correlation and trend can be found, thereby helping users better understand instrument data and its development trend and improving the accuracy and practicality of monitoring; based on the analysis of instrument monitoring historical data and preset rules, abnormal conditions are automatically early warned and reminded. Abnormal conditions are found in time and measures are taken in time to avoid adverse consequences.

[0072] To sum up, the instrument system based on the domain controller module in the embodiment can intelligently classify and arrange instrument data, determine abnormal parameter thresholds, set early warning rules, process and analyze data, and automatically perform early warning reminders, thereby improving the accuracy and practicality of instrument monitoring and helping users better manage and operate instrument equipment.

[0073] Obviously, various modifications and changes can be made to the present application by those skilled in the art without departing from the spirit and scope of the present application. Thus, if these modifications and changes are within the scope of the present application, the present application is also intended to include such modifications and changes.

Claims

1. An instrument system based on a domain controller module, characterized in that The system comprises: an instrument, an instrument monitoring module, a domain controller module and a management platform; the instrument is bidirectionally connected with the instrument monitoring module, the instrument monitoring module is bidirectionally connected with the domain controller module, and the domain controller module is bidirectionally connected with the management platform; the domain controller module comprises a plurality of domain controllers, which are communicatively connected with each other; all the domain controllers run the same version and updated operating system; the domain controllers are arranged according to the area positions of the instruments, and the position information of the domain controllers is recorded; for each controller, the following conditions need to be met: The maximum data amount that the domain controller can handle at the same time is Ci, and the maximum data amount that needs to be handled in the region is Qm; then C=H*F*Z*B*V, Qm=S*N; wherein; S is the average request size, N is the maximum request amount; the number of processor cores H, the processor frequency F, the number of instructions per cycle Z, the parallelism B, the maximum data transmission rate V, is the average network speed, NV max is the maximum network speed; the management platform sets a domain controller monitoring module to monitor the running state of the domain controller, including: the domain controller monitoring module collects log data of the domain controller and analyzes and evaluates the log data; the domain controller monitoring module selects a relatively idle time period and a fault interval time g of the domain controller through the log data; the domain controller monitoring module sends a request to the domain controller at a regular time to detect the response state of the domain controller; the domain controller monitoring module obtains the average response time T and the maximum response time Tm of the domain controller through the log data; if the domain controller does not respond or returns error information within T' time, the monitoring program determines that the domain controller is faulty; where T' = Tm+ T*NV / (2*NV max ); NV is the current network speed; NV max is the maximum network speed; when detecting the fault of the domain controller, a reminder is sent to the instrument monitoring module and the background terminal of the corresponding area.

2. The instrument system based on a domain controller module according to claim 1, characterized in that The instrument comprises: temperature instruments, pressure instruments, flow instruments, humidity instruments, current instruments and voltage instruments, which are classified and numbered according to types, and the area positions of different instruments are marked.

3. The instrument system based on a domain controller module according to claim 1, characterized in that The instrument monitoring module is communicatively connected with each instrument, and the instrument monitoring module comprises a data acquisition module and a data conversion module; the data acquisition module is connected to the instrument, responsible for acquiring data of the instrument and transmitting the data to the instrument monitoring module; the data of the instrument includes instrument data, instrument equipment information, the state of the instrument and fault information; the data conversion module converts the collected data into a standard format and transmits the data to the domain controller module.

4. The domain controller module based instrumentation system of claim 1, wherein, The instrument monitoring module is equipped with a display device for monitoring the working state of various instruments and instrument data.

5. The domain controller module based instrumentation system of claim 1, wherein, The domain controller module is connected to a local network for realizing remote control and monitoring of the instruments, and realizes real-time storage and processing of the data collected by the instruments, and uploads the processed data to the management platform.

6. The domain controller module based instrumentation system of claim 1, wherein, The management platform is used for centralized management and monitoring of the running state and data information of various instrument equipment; the management platform is responsible for integrated analysis of the data, and resource allocation according to the analysis results; the management platform manages the rights of users, and transmits the rights of the users to the domain controller module, and executes user management, right setting, user group management and role authorization operation through the domain controller module; the management platform comprises a pre-warning and alarm module for pre-warning and / or alarming abnormal operation.

7. The domain controller module based instrumentation system of claim 1, wherein, The instrument monitoring module transmits data to the domain controller module; The instrument monitoring module preferentially selects a domain controller in a belonging area for data transmission, and selects other optimal domain controller for data transmission when the domain controller in the belonging area fails; a score F of the domain controller is calculated, and the domain controller with the highest score is the optimal controller, wherein the calculation method of the score is: The average response time Ti of a certain domain controller in normal operation, the signal strength Sti of a certain domain controller received by the instrument control module; the current data volume Qi processed by a certain domain controller in normal operation, the data volume Q needed to be transmitted by a fault area g The maximum data volume Ci that can be processed by a certain domain controller simultaneously; and n is the number of domain controllers in normal operation.

8. The domain controller module based instrumentation system of claim 1, wherein, The management platform classifies and arranges the instrument data according to instrument types and numbers; Under the same instrument, historical monitoring data are analyzed, including determining an abnormal parameter threshold and a pre-warning rule, performing data processing and analysis on the collected data, and pre-warning reminding according to the processing and analysis result.

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