CN112595518A - Operation state monitoring and emergency stop system of distributed supersonic air flow generating device - Google Patents
Operation state monitoring and emergency stop system of distributed supersonic air flow generating device Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention provides a system for monitoring the running state and scramming of a distributed supersonic airflow generating device. The system comprises: the system comprises a measurement upper computer, a measurement lower computer cluster, a communication network and a control host; the measurement upper computer is used for setting and issuing a rule table, summarizing and measuring running state data fed back by the lower computer cluster, analyzing and judging the running state data, and then judging whether to send an 'emergency stop' operation instruction to the control host; each lower measurement computer device is used for sampling corresponding sensor data, performing judgment and confirmation according to the standard table acquired from the upper measurement computer, and transmitting the running state data to the upper measurement computer in real time; and the control host is used for executing the 'emergency stop' instruction sent by the measurement upper computer and implementing an emergency stop program. The supersonic air flow generating device realizes efficient and reliable real-time monitoring and scram control of the running state of the supersonic air flow generating device based on the measuring upper computer and the distributed measuring lower computer cluster.
Description
Technical Field
The invention belongs to the technical field of ramjet tests, and particularly relates to an operation state monitoring and emergency stop system of a supersonic airflow generating device.
Background
The supersonic speed air flow generating device continuously heats continuous supersonic speed air flow through liquid oxygen and alcohol combustion to generate continuous supersonic speed high temperature air flow, and supersonic speed high temperature air flow simulation environment is provided for a ramjet engine test. The supersonic airflow generating device has the risks of leakage of three high-pressure component pipeline media (liquid oxygen, alcohol and air), damage of the device and the like in the running state, and timely response confirmation and sudden stop of the device at the early stage of the risk of the supersonic airflow generating device cannot be realized through human visual observation.
At present, a fault diagnosis system for a supersonic airflow generating device adopts a host/client mode, an original program needs to be changed every time, the change amount is large, and errors are easy to occur; and often send out an alarm because of low risk during actual operation, lead to frequent scram, and monitoring system operating efficiency is lower.
Disclosure of Invention
The purpose of the invention is: the system solves the problem of operation monitoring of the supersonic air flow generating device in the prior art, and provides a real-time monitoring and emergency stop system which can efficiently and reliably monitor the operation state of the supersonic air flow generating device, so that the supersonic air flow generating device can be rapidly and emergently controlled at the beginning of risk occurrence.
In order to achieve the above object, the present invention proposes the following solutions:
a distributed supersonic airflow generating device running state monitoring and emergency stop system is characterized by comprising:
the measurement upper computer is used for setting and issuing a rule table, summarizing and measuring the running state data fed back by the lower computer cluster, analyzing and judging the running state data, and then judging whether to send an 'emergency stop' operation instruction to the control host; the characterization parameters listed in the criterion table cover the parts which can timely and accurately reflect the running state of the supersonic airflow generating device;
the lower measurement computer cluster consists of a plurality of distributed lower measurement computer devices, is in communication connection with the upper measurement computer, and is provided with one or more sensor units; each sensor unit is respectively deployed aiming at the part which can timely and accurately reflect the running state of the supersonic airflow generating device; the lower measurement computer equipment is used for sampling corresponding sensor data, performing discrimination and confirmation according to the standard table acquired from the upper measurement computer, converting the data into running state data corresponding to the characterization parameters, and transmitting the running state data to the upper measurement computer in real time;
the communication network is used for supporting information transmission of the upper measurement computer, the lower measurement computer cluster and the upper measurement computer and the control host;
and the control host is used for executing an 'emergency stop' instruction sent by the measurement upper computer, implementing an emergency stop program, and finishing the opening and closing operation of the related pipeline of the supersonic air flow generating device by outputting an electric signal to the valve of the corresponding component of the supersonic air flow generating device.
Based on the above scheme, the invention further optimizes as follows:
optionally, the communication network is a ring fiber ethernet network.
Further optionally, the communication network comprises a front-end network switch, a back-end network switch and an optical fiber line, the front-end network switch is used for front-end data network interactive transmission and is arranged in a region where the lower computer cluster and the control host are measured, the back-end network switch is used for back-end data network interactive transmission and is arranged in a region where the upper computer is measured, and the optical fiber line is used for data link connection of the front-end network switch and the back-end network switch.
Optionally, the lower measurement computer device further sets an early warning condition based on the criterion table; when the early warning condition is met, the corresponding lower computer equipment sends an early warning signal to the upper computer; and the upper measurement computer determines whether to send an 'emergency stop' operation instruction to the control host according to whether the quantity of the summarized early warning signals reaches a set threshold value.
Further optionally, only when the early warning condition is met, the corresponding lower measurement computer device transmits the real-time running state data to the upper measurement computer.
Optionally, the characterizing parameters include an ignition current signal, a pre-injection pressure, an inlet temperature, and an air flow.
Further optionally, the sensor unit is divided into a pressure sensor, a temperature sensor and a flow sensor. The ignition current signal can be obtained through the power supply circuit, so that a sensor does not need to be additionally configured.
Optionally, the standard content of the standard table includes a number of the lower measurement computer, a time period during which the standard takes effect, and an upper limit value and a lower limit value of a safety range of the corresponding characterization parameter.
The invention has the beneficial effects that:
the supersonic air flow generating device realizes efficient and reliable real-time monitoring and emergency stop control of the running state of the supersonic air flow generating device based on the cluster of the upper measuring computer and the distributed lower measuring computers. Setting and issuing a monitoring criterion by the measuring upper computer, downloading the monitoring criterion by the measuring lower computer cluster, judging and confirming the measuring parameter data obtained by sampling according to the monitoring criterion, transmitting the state data to the measuring upper computer in real time, and summarizing the state information and calculating whether an emergency stop operation needs to be executed by the upper computer; if the 'emergency stop' operation needs to be executed, an execution instruction is sent to the control host, and an emergency stop program is entered.
The invention only needs to set and release the rule table on the upper computer of measurement, and the modification workload is small; the lower measurement computer is responsible for monitoring the state condition of the parameters, and sends parameter early warning to the upper measurement computer only when the early warning condition is met, so that the operation load of the upper measurement computer is reduced, the network resource occupancy rate is low, and the operation efficiency of the distributed monitoring system is higher.
The invention is applied to the development process of the supersonic airflow generation device, reduces the damage times of the supersonic airflow generation device due to various risks, improves the repeated utilization rate of the device, saves the development cost and shortens the development period.
Drawings
FIG. 1 is a schematic block diagram of a distributed supersonic airflow generating apparatus operating condition monitoring and emergency stop system according to an embodiment of the present invention.
Detailed Description
The present invention will be further described in detail by way of examples with reference to the accompanying drawings.
As shown in fig. 1, the system for monitoring the operating state and scramming of a distributed supersonic airflow generating device according to the present embodiment includes a measurement upper computer, a front-end network switch, a rear-end network switch, a measurement lower computer cluster, and a control host.
The upper measurement computer sets a monitoring criterion (criterion table) and issues the monitoring criterion through the ring optical fiber Ethernet. The measuring lower computer cluster downloads and receives monitoring criteria through the ring-shaped optical fiber Ethernet, converts sensor measuring point signals on corresponding key components of the device into electric signal data in real time after the supersonic air flow generating device is started, monitors the measuring data in real time according to the monitoring criteria, and transmits state data to the measuring upper computer in real time after the parameters meet early warning conditions. And (4) measuring an early warning signal collected by the upper computer, and judging whether the 'emergency stop' operation needs to be executed. If the 'emergency stop' operation needs to be executed, an 'emergency stop' instruction is sent to the control host machine, and an emergency stop program is entered. Specifically, the method comprises the following steps:
the measurement upper computer is used for setting and issuing a rule table, summarizing and measuring the running state data fed back by the lower computer cluster, analyzing and judging the running state data, and then judging whether to send an 'emergency stop' operation instruction to the control host; the characterization parameters listed in the criterion table cover the parts which can timely and accurately reflect the running state of the supersonic airflow generating device; the characterizing parameters include igniter firing signal (firing current signal), pre-injection pressure, inlet temperature, and air flow; the standard contents of the standard table comprise the number of the lower computer, the time period when the standard takes effect, and the upper limit value and the lower limit value of the safety range of the corresponding characterization parameter, wherein the upper limit value and the lower limit value of the safety range are established aiming at the stage after the running state of the supersonic airflow generating device is stable.
The lower measurement computer cluster consists of a plurality of distributed lower measurement computer devices and is in communication connection with the upper measurement computer, and each lower measurement computer device is provided with one or more sensor units; each sensor unit is arranged aiming at the part which can timely and accurately reflect the running state of the supersonic air flow generating device, and relates to a pressure sensor, a temperature sensor, a flow sensor and the like. And the measuring lower computer device samples corresponding sensor data, performs judgment and confirmation according to the standard table acquired from the measuring upper computer, converts the sensor data into running state data corresponding to the characterization parameters, and transmits the running state data to the measuring upper computer in real time.
The lower measurement computer equipment can also preset an early warning condition based on a rule table, for example, if M times of continuous sampling measured values (operation state data of the characterization parameters) exceed the upper limit value/the lower limit value of the safety range, the corresponding lower measurement computer equipment immediately sends an early warning signal of the related characterization parameters to the upper measurement computer; the measurement upper computer can determine whether to send an 'emergency stop' operation instruction to the control host according to whether the total number of the early warning signals sent by the collected measurement lower computer cluster reaches a set threshold value.
The mode of pre-setting the early warning condition for the equipment of the lower measurement computer can avoid transmitting real-time running state data to the upper measurement computer when the early warning condition is not met. Even if the early warning condition is met, the real-time running state data does not need to be transmitted to a measurement upper computer, and only the early warning signal of the related characterization parameter is reported; correspondingly, the upper measurement computer directly determines whether to send an 'emergency stop' operation instruction to the control host according to whether the total number of the collected early warning signals sent by the lower measurement computer cluster reaches a set threshold value. Therefore, the operation load of the upper computer is further reduced, and the operation efficiency of the distributed monitoring system is higher.
The communication network is used for supporting information transmission of the upper measurement computer, the lower measurement computer cluster and the upper measurement computer and the control host; the communication network comprises front end network switch, rear end network switch and fiber circuit, and wherein front end network switch is used for the interactive transmission of front end data network, sets up in measuring the next machine cluster and the regional of control host computer place, and rear end network switch is used for the interactive transmission of rear end data network, sets up in measuring the regional of host computer place, and fiber circuit is used for the data link connection of front end network switch and rear end network switch.
And the control host is used for executing an 'emergency stop' instruction sent by the measurement upper computer, implementing an emergency stop program, and finishing the opening and closing operation of a related pipeline of the supersonic air flow generating device by outputting an electric signal to a valve of a corresponding component of the supersonic air flow generating device so as to realize the operation control of the device. The predetermined emergency stop program describes the action of the supersonic air flow generating means to open and close the associated valve operation under emergency stop operation.
In the embodiment, only the rule table needs to be set and issued on the measurement upper computer, and the modification workload is small; the lower measurement computer is responsible for monitoring the state condition of the parameters, and sends parameter early warning to the upper measurement computer only when the early warning condition is met, so that the operation load of the upper measurement computer is reduced, the network resource occupancy rate is low, and the operation efficiency of the distributed monitoring system is higher.
Claims (8)
1. A distributed supersonic airflow generating device running state monitoring and emergency stop system is characterized by comprising:
the measurement upper computer is used for setting and issuing a rule table, summarizing and measuring the running state data fed back by the lower computer cluster, analyzing and judging the running state data, and then judging whether to send an 'emergency stop' operation instruction to the control host; the characterization parameters listed in the criterion table cover the parts which can timely and accurately reflect the running state of the supersonic airflow generating device;
the lower measurement computer cluster consists of a plurality of distributed lower measurement computer devices, is in communication connection with the upper measurement computer, and is provided with one or more sensor units; each sensor unit is respectively deployed aiming at the part which can timely and accurately reflect the running state of the supersonic airflow generating device; the lower measurement computer equipment is used for sampling corresponding sensor data, performing discrimination and confirmation according to the standard table acquired from the upper measurement computer, converting the data into running state data corresponding to the characterization parameters, and transmitting the running state data to the upper measurement computer in real time;
the communication network is used for supporting information transmission of the upper measurement computer, the lower measurement computer cluster and the upper measurement computer and the control host;
and the control host is used for executing an 'emergency stop' instruction sent by the measurement upper computer, implementing an emergency stop program, and finishing the opening and closing operation of the related pipeline of the supersonic air flow generating device by outputting an electric signal to the valve of the corresponding component of the supersonic air flow generating device.
2. The distributed supersonic airflow generating apparatus operational status monitoring and emergency stop system according to claim 1, wherein said communication network is a ring fiber optic ethernet network.
3. The system of claim 2, wherein the communication network comprises a front-end network switch, a back-end network switch and an optical fiber line, the front-end network switch is used for front-end data network interactive transmission and is disposed in a region where the lower measurement unit cluster and the control host are located, the back-end network switch is used for back-end data network interactive transmission and is disposed in a region where the upper measurement unit is located, and the optical fiber line is used for data link connection between the front-end network switch and the back-end network switch.
4. The system for monitoring the operating state and scramming of a distributed supersonic airflow generating apparatus according to claim 1, wherein the measuring lower computer device further sets an early warning condition based on the criteria table; when the early warning condition is met, the corresponding lower computer equipment sends an early warning signal to the upper computer; and the upper measurement computer determines whether to send an 'emergency stop' operation instruction to the control host according to whether the quantity of the summarized early warning signals reaches a set threshold value.
5. The system for monitoring the operational status and scram of a distributed supersonic airflow generating apparatus according to claim 4, wherein the corresponding measuring lower computer device transmits real-time operational status data to the measuring upper computer only when the pre-warning condition is satisfied.
6. The distributed supersonic air flow generating apparatus operating condition monitoring and emergency stop system of claim 1, wherein the characterizing parameters comprise an ignition current signal, a pre-injection pressure, an inlet temperature, and an air flow.
7. The distributed supersonic air flow generating apparatus operational status monitoring and emergency stop system according to claim 6, wherein the sensor units are divided into pressure sensors, temperature sensors and flow sensors.
8. The system for monitoring the operating condition and scram of the distributed supersonic airflow generating device according to claim 1, wherein the standard contents of the standard table comprise the number of the lower measuring computer, the effective time period of the standard, and the upper limit value and the lower limit value of the safety range of the corresponding characterization parameter.
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