CN113687359B - Phased array weather radar health management system - Google Patents
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Abstract
The invention discloses a phased array weather radar health management system, which comprises: the system comprises an embedded detection device module, a special built-in test module, a health database module and a data processing software module. The embedded detection device module and the special built-in test module form a twin simulation part of the phased array weather radar health management system; the health database module, the health management software module and the data processing software module form a digital twin part of the phased array weather radar health management system. The method can quickly judge and position the fault position of the phased array weather radar; under the condition of ensuring the basic performance of the phased array weather radar, part of fault equipment is reasonably and effectively avoided, the radar work task is completed, and the radar utilization rate is improved; the performance and operating conditions of the components are continuously monitored and diagnosed.
Description
Technical Field
The invention relates to the technical field of phased array weather radars, in particular to a health management system of a phased array weather radar.
Background
The phased array weather radar has the outstanding advantages of fast beam scanning time, free and flexible energy scheduling, high monitoring and measuring efficiency and the like, can quantitatively measure precipitation in a large area, and is the mainstream direction for the development of the next-generation weather radar. A plurality of manufacturers develop and produce phased array weather radars at home and abroad, and the phased array weather radars have S wave bands, C wave bands and X wave bands, and have more characteristics superior to the traditional paraboloid weather radars. Particularly, the time spatial resolution of the C-band phased array weather radar developed by Nanjing Enruit industry Co., Ltd for Beijing Daxing International airport is greatly improved compared with the existing weather radar of civil aviation.
Both the gain and the beam width of the antenna vary during scanning by the phased array weather radar. The number of TR components in one radar is large, generally, the number is hundreds if the number is small, more components are tens of thousands, and a large number of components can partially fail along with time, so that the comprehensive detection performance of the radar is influenced. In order to solve the shortcomings of phased array weather radars, a radar health management system must be designed.
The patent of invention 'phased array antenna alignment method and device and phased array antenna' (patent number CN 102292870A) of Huacheng technology Limited company discloses a phased array antenna alignment method and device and a phased array antenna, relating to the field of communication and being capable of accurately adjusting the pointing direction of the phased array antenna. The invention provides a phased array antenna alignment method, which requires that antenna alignment is realized under the condition that each antenna array subunit is normal. The patent "a phase calibration method for a digital phased array antenna and a phased array antenna" (CN 111245529A) discloses a phase calibration method for a digital phased array antenna, which is also required to be completed on the premise that the radar device is in a normal state. No corresponding processing method is given for determining and positioning the fault and completing the calibration when the radar middle part assembly or part of the equipment has the fault.
The invention patent 'equipment fault diagnosis method, device and system based on digital twin model' (patent number CN 110442936B) discloses an equipment fault diagnosis method, device and system based on digital twin model, the method comprises the steps of constructing an initial digital twin model of target equipment according to initial state parameter data and response parameter data of the target equipment; acquiring a target response parameter of the target equipment and an update parameter corresponding to the target response parameter, calculating the sensitivity of each update parameter relative to the target response parameter, and taking the update parameter with the sensitivity meeting a preset requirement as a correction parameter; constructing a response surface model between the target response parameter and the correction parameter, and determining a correction value of the correction parameter based on the response surface model; and updating the initial digital twin model by using the correction value of the correction parameter to obtain a digital twin model of the target equipment, and performing fault diagnosis on the target equipment by using the digital twin model. The method is suitable for general mechanical equipment maintenance diagnosis, and is difficult to apply to radar complex systems including microwaves, machinery, electronics, microelectronics and software because a digital twin model is difficult to establish.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a method for rapidly judging and positioning the fault position of a phased array weather radar; under the condition of ensuring the basic performance of the phased array weather radar, part of fault equipment is reasonably and effectively avoided, the radar work task is completed, and the radar utilization rate is improved; a phased array weather radar health management system that continuously monitors and diagnoses the performance and operational status of components.
The purpose of the invention is realized by the following technical scheme.
A phased array weather radar health management system, comprising:
embedded detection device module: each subsystem of the phased array weather radar comprises an antenna array surface, a TR component, a DBF/signal processing unit, a servo unit and a radar terminal, and the embedded detection device module is used for continuously monitoring and diagnosing the working state, the working parameters and the running state of each subsystem of the phased array weather radar;
special built-in test module: the device belongs to an independent special test module, is used for providing an antenna array surface transceiving channel test branch and a reference branch, and simultaneously provides various test signals required by the antenna array surface and system test, thereby realizing the online test and calibration of the antenna array surface and radar system parameters;
the health database module: the system is used for storing basic information, technical parameters, current and historical monitoring data and diagnosis knowledge of the product; the health management software module: the method is used for acquiring BIT and performance monitoring data of each subsystem of the radar, and realizing system performance analysis, fault diagnosis, health evaluation and auxiliary troubleshooting;
a data processing software module: the method is used for displaying the health information of the phased array weather radar system and controlling the test mode of the system.
The embedded detection device module and the special built-in test module form a twin simulation part of the phased array weather radar health management system; the health database module, the health management software module and the data processing software module form a digital twin part of the phased array weather radar health management system.
The special built-in test module adopts a broadband design, and comprises an equal power distribution network, a monitoring and correcting component and couplers, wherein the monitoring and correcting component and the N couplers are connected together by the equal power distribution network to realize transmission of test signals between the monitoring and correcting component and the couplers; the calibration monitoring component establishes a standard test signal and a reference branch circuit, can generate different test signals according to the system test requirements, is used for simulating and generating target information under the conditions of different distances and different Doppler frequency shifts, realizes real-time calibration of the radar system, and realizes the functions of array surface monitoring, online test of system echo intensity and echo speed and calibration.
The health database module is deployed in a commercial server platform to receive and store six data information including basic information, state parameter attributes, interface protocols, diagnosis knowledge, running state data, historical data, statistical information and output results of products, wherein the running state database is a main channel for the health management software module to obtain radar health data in real time, and comprises an original measurement data table, an echo data table, a functional performance parameter value table and a component state acquisition table which are dynamically updated; the historical database contains historical records of various types of monitoring data, diagnosis and analysis evaluation results.
The health management software module is deployed in a commercial server platform, and functions of reading running state data, diagnosing faults, evaluating health and assisting troubleshooting are achieved. The operation state data reading means that the latest working state, working parameters, operation state and performance monitoring data of the radar system and BIT information of each subsystem are obtained from the health database module in real time and are used for fault diagnosis and health evaluation; the fault diagnosis means that fault detection, identification and isolation are carried out by utilizing expert knowledge based on BIT and performance monitoring results, alarm is issued in time when a fault occurs, and most faults can be positioned to LRU (least recently used) through establishing a complete expert knowledge and fault information base; the diagnosis result is stored in the health database module and is released to the data processing software module through the network to be displayed; the health evaluation refers to overall evaluation of the functional integrity of the radar whole machine and all components and measures the health level; evaluating the influence of abnormal state parameters and component faults on the operation of the radar system: performance degradation, offline maintenance and incapability of working, and outputting an evaluation conclusion; the auxiliary troubleshooting comprises comprehensive utilization of sound and light alarm and rapid fault positioning; a user inputs or clicks a fault code/fault piece ID, and maintenance guide information is popped up; and outputting a plurality of detection and diagnosis reports.
The data processing software module runs on a display control terminal computer and has a health management working mode and a health information display function; the health management working mode refers to three radar running state data acquisition working modes of power-on BIT, periodic BIT and maintenance BIT, covers state parameter monitoring of all extensions of the radar and interfaces among the extensions, and tests and verifications of key function performance indexes; the power-on BIT refers to a working mode of acquiring the BIT information of the radar by using the embedded detection device module in the system initialization process after the radar is powered on; the periodic BIT refers to a working mode that the built-in detection device module and the special built-in test module are periodically utilized to acquire BIT information and performance monitoring data of the radar after the radar enters a normal working state; the maintenance BIT refers to a working mode that radar maintenance and test are carried out by radar crew independently by using a detection means provided by a radar system; the health information display means that the working states, the performance monitoring data and the analysis and evaluation conclusion of each subsystem and the LRU of the radar are displayed in a real object graph, a state list and a data curve graph mode; and displaying suggestions for guiding a user to carry out maintenance and troubleshooting and planning spare part guarantee resources in a report mode.
The following process is operated: starting a data processing software module, controlling each subsystem of the radar to be powered on and started by the data processing software module, then firstly operating a powered BIT working mode after each subsystem is powered on and started, continuously monitoring and diagnosing the working state, working parameters and operating state of each subsystem of the phased array weather radar by using an embedded detection device module, and sending the obtained state data to a health database module through a radar internal communication network; the health management software module reads from the health database module in real time, performs real-time analysis and judgment, and if the power-on BIT does not pass, the data processing software module sends out audible and visual alarm to inform radar crew of implementing and maintaining a BIT test mode on the radar system, and meanwhile, the health database module stores and maintains radar system test data in the BIT test mode in real time; if the power-on BIT passes, the radar system enters a normal working state.
During normal work of the radar system, the data processing software module starts a periodic BIT test mode every 30 minutes, periodically collects the BIT and performance monitoring data of the radar system and each subsystem, the data are stored into the health database module in real time through a network, health diagnosis and analysis evaluation are carried out by health management software, and if a fault mode influencing the normal work of the radar is detected, the data processing software module warns a user to switch the radar system to an offline mode to maintain the BIT test mode.
In the maintenance BIT test mode, radar crew can run necessary offline test items to obtain test data, the health management software module carries out comprehensive diagnosis with the test results of the online test items, the fault position of the radar system is determined, and the radar crew is assisted in radar maintenance.
Compared with the prior art, the invention has the advantages that:
(1) and monitoring the health states of the modules, the subsystems and the system in real time on line, and diagnosing faults.
(2) And performing performance degradation analysis and trend tracking on a key subsystem represented by an antenna array face to predict faults.
(3) And a standard information interface is established to provide decision support for field maintenance and spare part management.
(4) And rapidly judging and positioning the fault position of the phased array weather radar.
(5) Under the condition of ensuring the basic performance of the phased array weather radar, partial fault equipment is reasonably and effectively avoided, the radar work task is completed, and the radar utilization rate is improved.
(6) The performance and operating conditions of the components are continuously monitored and diagnosed. In particular, critical components that affect the performance of the system or faults that may be harmful to the system are monitored.
Drawings
FIG. 1 is a block diagram of a phased array weather radar system according to the present invention.
FIG. 2 is a diagram of the system of the present invention.
FIG. 3 is a flow chart of the present invention.
Fig. 4 is a diagram showing a health database storage information configuration.
FIG. 5 is a health management software process flow diagram.
Fig. 6 is a flow chart of a fault diagnosis strategy.
Detailed Description
The invention is described in detail below with reference to the drawings and specific examples.
Examples
The hardware of a certain phased array weather radar (see figure 1) system is structurally divided into an outdoor part and an indoor part, the outdoor part mainly comprises an antenna pedestal, an antenna array surface (comprising N waveguide slot antennas, a comprehensive network, array surface monitoring, an N-channel digital TR component, 1 monitoring component, an array surface power supply and the like), light transmission and Digital Beam Forming (DBF), and the indoor part comprises signal processing, servo (antenna control), health management (comprising a database), data processing (comprising radar information display and meteorological information processing), a secondary product generation server, and auxiliary equipment such as cables, cabinets, networks and the like.
The phased array weather radar adopts a digital-analog hybrid twin technology to realize a health management system, and provides a system structure, a working mode and a detection method and provides a processing algorithm according to how to judge and position a fault position and finish antenna calibration when the phased array weather radar is in a state of partial component or equipment failure. The method comprises the steps of monitoring the health state of the radar in real time, intelligently diagnosing and evaluating the health based on an active prediction guarantee mode, introducing a data mining analysis means, establishing a radar state trend prediction model according to historical fault maintenance data, carrying out state trend prediction, recommending a maintenance plan and carrying out maintenance in advance. Meanwhile, based on the health management result, fault softening is realized by reconstructing system resources, the performance of the radar system is optimized, and the availability and the maintainability of the system are finally improved.
A health management system based on a digital-analog hybrid twin technology is fused with the whole radar system, a distributed state/working data acquisition-centralized analysis processing scheme is adopted, and the health management system mainly comprises five modules (see figure 1) and an embedded detection device module (BITE) 1#, is embedded in each subsystem of radar such as an antenna array surface, a TR component, DBF/signal processing, a servo, a radar terminal and the like and is used for continuously monitoring and diagnosing the working state, working parameters and the running state of each subsystem of the radar; a special built-in test module 2# which belongs to an independent special test module designed by a system and is used for providing an antenna array surface transceiving channel test branch and a reference branch, and simultaneously providing various test signals required by the antenna array surface and the system test, thereby realizing the online test and calibration of the antenna array surface and the radar system parameters; the health database module 3# is used for storing basic information of products, technical parameters, current and historical monitoring data and diagnosis knowledge; health management software 4# is used for collecting BIT and performance monitoring data of each radar subsystem, and realizing system performance analysis, fault diagnosis, health evaluation and auxiliary troubleshooting; and the data processing software module 5# is used for displaying the health information of the phased array weather radar system and controlling a system test mode.
The embedded detection device module (BITE) 1# and the special built-in test module 2# form a simulation twin part of the phased array weather radar health management system. And the health database module 3#, the health management software module 4# and the data processing software module 5# form a digital twin part of the phased array weather radar health management system.
A workflow diagram of a health management system based on a digital-analog hybrid twin technique is shown in fig. 3.
Firstly, starting a data processing software module 5#, controlling each subsystem of the radar to be powered on and started by the data processing software module 5#, firstly operating a powered BIT working mode after each subsystem is powered on and started, continuously monitoring and diagnosing the working state, working parameters and the running state of each subsystem (including a front assembly) of the radar by using an embedded detection device module (BITE) 1#, and transmitting the obtained state data to a health database module 3 #; the health management software module 4# reads from the health database module 3# in real time, analyzes and judges in real time, and if the power-on BIT does not pass through, the data processing software module 5# sends out audible and visual alarm to inform radar crew of implementing and maintaining the BIT test mode for the radar system, and meanwhile, the health database module 3# stores and maintains the radar system test data in the BIT test mode in real time. If the power-on BIT passes, the radar system enters a normal working state, during the normal working period of the radar system, the data processing software module 5# starts a periodic BIT test mode every 30 minutes, periodically collects BIT and performance monitoring data of the radar system and each subsystem, stores the data into the health database module 3# in real time through a network, and health diagnosis, analysis and evaluation are carried out by health management software. And if a fault mode influencing the normal work of the radar is detected, the data processing software module 5# warns a user to switch the radar system to an offline mode, and a BIT test mode is maintained. In the maintenance BIT test mode, radar crew can run necessary offline test items to obtain test data, the health management software module 4# performs comprehensive diagnosis on test results of the online test items, determines the fault position of the radar system, and assists the radar crew in radar maintenance. In the work flow chart of the health management system, the working state BIT and the performance parameters of the radar system and each subsystem are acquired from the health database module 3# by the data processing software module 5# and are displayed visually in real time.
The 1# hierarchical level of the embedded detection device module (BITE) is distributed inside each subsystem, module or assembly of the radar so as to establish a perfect embedded detection system which is used for continuously monitoring and diagnosing the working state, working parameters and running state inside each subsystem, module or assembly of the radar and sending the acquired information by using a communication link.
The special built-in test module 2# adopts a broadband design and comprises an equal power distribution network, a monitoring and correcting component and couplers, wherein the monitoring and correcting component and the N couplers are connected together by the equal power distribution network to realize transmission of test signals between the monitoring and correcting component and the couplers; the calibration monitoring component establishes a standard test signal and a reference branch circuit, can generate different test signals (see table 1) according to the system test requirements, is used for simulating and generating target information under the conditions of different distances and different Doppler frequency shifts, realizes real-time calibration of the radar system, and realizes the functions of array surface monitoring, online test of system echo intensity and echo speed and calibration.
TABLE 1 test signals
And the health database module 3# is deployed in a commercial server platform to receive and store six data information including product basic information, state parameter attributes, interface protocols, diagnosis knowledge, running state data, historical data, statistical information and output results. The running state database is a main channel for acquiring radar health data in real time by the health management software module 4#, and comprises an original measurement data table, an echo data table, a functional performance parameter value table and a component state (environment/control/work and other aspects) acquisition table which are dynamically updated; the historical database comprises historical records of various monitoring data, diagnosis and analysis and evaluation results, and provides data support for comprehensively analyzing and evaluating the health state of the radar and mastering the past use condition and the future development trend of the radar.
The health management software module 4# is the core of the digital twin part of the health management system, is deployed in a commercial server platform, and realizes the functions of running state data reading, fault diagnosis, health evaluation, auxiliary troubleshooting and the like, and the processing flow is shown in fig. 5. The operation state data reading means that the latest working state, working parameters, operation state and performance monitoring data of the radar system and BIT information of each subsystem are obtained from the health database module 3# in real time and are used for fault diagnosis, health evaluation and the like; the fault diagnosis means that based on BIT and performance monitoring results, expert knowledge is utilized to detect, identify and isolate faults, when faults occur, an alarm is issued in time, a fault diagnosis strategy flow is shown in figure 6, and most faults can be located to LRU through establishing complete expert knowledge and a fault information base. And the diagnosis result is stored in the health database module 3# and is released to the data processing software module 5# through a network for displaying. The health evaluation refers to overall evaluation of the functional integrity of the radar whole machine and all components and measures the health level; evaluating the influence of abnormal state parameters and component faults on the operation of the radar system: performance degradation, offline maintenance, inoperability and the like, and an evaluation conclusion is output. The auxiliary troubleshooting includes the following three aspects, which are respectively: the sound and light alarm is comprehensively applied, and faults are quickly positioned; a user inputs or clicks a fault code/fault piece ID, and maintenance guide information is popped up; and outputting a plurality of detection and diagnosis reports.
The data processing software module 5# runs on a display control terminal computer and has a health management working mode and a health information display function. The health management working mode refers to three radar running state data acquisition working modes of power-on BIT, periodic BIT and maintenance BIT, can run in the states of normal work, simulation, calibration and the like of the radar, and covers the monitoring of state parameters of all the extensions of the radar and interfaces among the extensions of the radar and the testing and verification of key function performance indexes. The power-on BIT refers to a working mode of acquiring the BIT (system, sub-subsystem system and module) information of the radar by using a built-in detection device module (BITE) 1# in the system initialization process after the radar is powered on; the periodic BIT refers to a working mode that the radar periodically acquires BIT information and performance monitoring data by using a built-in detection device module (BITE) 1# and a special built-in test module 2# after the radar enters a normal working state; the maintenance BIT refers to the working mode of radar maintenance and test by radar crew independently utilizing the detection means (including the special built-in test module 2 #) provided by the radar system. The health information display means that working states (normal/fault), performance monitoring data and analysis and evaluation conclusions of all subsystems and LRU of the radar are displayed in a mode of a real object graph, a state list, a data curve graph and the like; and displaying suggestions for guiding a user to carry out maintenance and troubleshooting and planning guarantee resources such as spare parts in a report mode.
The method comprises the steps of monitoring the health state of the radar in real time, intelligently diagnosing and evaluating the health based on an active prediction guarantee mode, introducing a data mining analysis means, establishing a radar state trend prediction model according to historical fault maintenance data, carrying out state trend prediction, recommending a maintenance plan and carrying out maintenance in advance. Meanwhile, based on the health management result, fault softening is realized by reconstructing system resources, the performance of the radar system is optimized, and the availability and the maintainability of the system are finally improved.
When the functional performance of a system, a subsystem and a module is abnormal, in order to match with the applications of fault isolation, health evaluation, information statistics and the like, the simulation parts of each hierarchy provide the following data:
1) basic signal detection results for guaranteeing normal operation of subsystems/modules;
in the power supply signal: voltage, current, stability, etc.;
signal in the central clock, local oscillator, timing and the like:
the edges reflect parameters of signal quality such as frequency, power, etc.
2) Parameters reflecting subsystem/module operating environment conditions
The middle section is directly like temperature and humidity;
the middle and the middle are indirectly like the rotating speed of a fan, the flow of cooling liquid and the like.
3) The transmission channel of external command/data/signal, network connection state detection data, optical fiber link, LAN/CAN/I2C bus, calibration signal channel detection, etc.
4) Related system control flow, data flow state data
The processing method includes detecting data such as the existence of control words/data packets, formats (such as bit errors and data lengths), correctness (such as whether the AD data has abnormalities such as saturation and illegal values), synchronism, continuity (whether frames are lost) and the like.
5) Component status detection data of subsystem/module itself
In the middle, for high-density digital modules, boundary scan testing is performed offline by establishing a complete JTAG link.
The health management system for the phased array weather radar based on the digital-analog twin technology mainly comprises the following monitoring items in a table 2:
TABLE 2 Main monitoring items
In order to accurately isolate and position faults, the health management software can also respond to user instructions to initiate requests to all subsystems to perform performance tests. These test items are shown in table 3.
TABLE 3 Main test items
Claims (8)
1. A phased array weather radar health management system, comprising:
embedded detection device module: each subsystem of the phased array weather radar comprises an antenna array surface, a TR component, a DBF/signal processing unit, a servo unit and a radar terminal, and the embedded detection device module is used for continuously monitoring and diagnosing the working state, the working parameters and the running state of each subsystem of the phased array weather radar;
special built-in test module: the device belongs to an independent special test module, is used for providing an antenna array surface transceiving channel test branch and a reference branch, and simultaneously provides various test signals required by the antenna array surface and system test, thereby realizing the online test and calibration of the antenna array surface and radar system parameters;
the health database module: the system is used for storing basic information, technical parameters, current and historical monitoring data and diagnosis knowledge of the product; the health management software module: the method is used for acquiring BIT and performance monitoring data of each subsystem of the radar, and realizing system performance analysis, fault diagnosis, health evaluation and auxiliary troubleshooting;
a data processing software module: the system is used for displaying the health information of the phased array weather radar system and controlling the system test mode; the embedded detection device module and the special built-in test module form a twin simulation part of the phased array weather radar health management system; the health database module, the health management software module and the data processing software module form a digital twin part of the phased array weather radar health management system.
2. The phased array weather radar health management system of claim 1, wherein the dedicated built-in test module is of a broadband design, and comprises an equal power distribution network, a monitoring and calibration component and couplers, wherein the equal power distribution network connects the monitoring and calibration component and the N couplers together to realize transmission of test signals between the monitoring and calibration component and the couplers; the calibration monitoring component establishes a standard test signal and a reference branch circuit, can generate different test signals according to the system test requirements, is used for simulating and generating target information under the conditions of different distances and different Doppler frequency shifts, realizes real-time calibration of the radar system, and realizes the functions of array surface monitoring, online test of system echo intensity and echo speed and calibration.
3. The phased array weather radar health management system as claimed in claim 1, wherein the health database module is deployed in a commercial server platform for receiving and storing six data information of product basic information, state parameter attributes, interface protocols, diagnosis knowledge, running state data, historical data, statistical information and output results, wherein the running state database is a main channel for the health management software module to obtain radar health data in real time, and comprises an original measurement data table, an echo data table, a functional performance parameter value table and a component state acquisition table, which are dynamically updated; the historical database contains historical records of various types of monitoring data, diagnosis and analysis evaluation results.
4. The phased array weather radar health management system according to claim 1, wherein the health management software module is deployed in a commercial server platform to realize functions of running state data reading, fault diagnosis, health evaluation and auxiliary troubleshooting, wherein the running state data reading means that the latest working state, working parameters, running state and performance monitoring data of the radar system and BIT information of each subsystem are obtained from the health database module in real time and are used for fault diagnosis and health evaluation; the fault diagnosis means that fault detection, identification and isolation are carried out by utilizing expert knowledge based on BIT and performance monitoring results, alarm is issued in time when a fault occurs, and most faults can be positioned to LRU (least recently used) through establishing a complete expert knowledge and fault information base; the diagnosis result is stored in the health database module and is released to the data processing software module through the network to be displayed; the health evaluation refers to overall evaluation of the functional integrity of the radar whole machine and all components and measures the health level; evaluating the influence of abnormal state parameters and component faults on the operation of the radar system: performance degradation, offline maintenance and incapability of working, and outputting an evaluation conclusion; the auxiliary troubleshooting comprises comprehensive utilization of sound and light alarm and rapid fault positioning; a user inputs or clicks a fault code/fault piece ID, and maintenance guide information is popped up; and outputting a plurality of detection and diagnosis reports.
5. The phased array weather radar health management system of claim 1, wherein the data processing software module runs on a display control terminal computer and has a health management working mode and a health information display function; the health management working mode refers to three radar running state data acquisition working modes of power-on BIT, periodic BIT and maintenance BIT, covers state parameter monitoring of all extensions of the radar and interfaces among the extensions, and tests and verifications of key function performance indexes; the power-on BIT refers to a working mode of acquiring the BIT information of the radar by using the embedded detection device module in the system initialization process after the radar is powered on; the periodic BIT refers to a working mode that the built-in detection device module and the special built-in test module are periodically utilized to acquire BIT information and performance monitoring data of the radar after the radar enters a normal working state; the maintenance BIT refers to a working mode that radar maintenance and test are carried out by radar crew independently by using a detection means provided by a radar system; the health information display means that the working states, the performance monitoring data and the analysis and evaluation conclusion of each subsystem and the LRU of the radar are displayed in a real object graph, a state list and a data curve graph mode; and displaying suggestions for guiding a user to carry out maintenance and troubleshooting and planning spare part guarantee resources in a report mode.
6. The phased array weather radar health management system as claimed in claim 1, wherein the following process is performed: starting a data processing software module, controlling each subsystem of the radar to be powered on and started by the data processing software module, then firstly operating a powered BIT working mode after each subsystem is powered on and started, continuously monitoring and diagnosing the working state, working parameters and operating state of each subsystem of the phased array weather radar by using an embedded detection device module, and sending the obtained state data to a health database module through a radar internal communication network; the health management software module reads from the health database module in real time, performs real-time analysis and judgment, and if the power-on BIT does not pass, the data processing software module sends out audible and visual alarm to inform radar crew of implementing and maintaining a BIT test mode on the radar system, and meanwhile, the health database module stores and maintains radar system test data in the BIT test mode in real time; if the power-on BIT passes, the radar system enters a normal working state.
7. The phased array weather radar health management system as claimed in claim 6, wherein during normal operation of the radar system, the data processing software module starts a periodic BIT test mode every 30 minutes, periodically collects BIT and performance monitoring data of the radar system, each subsystem and each subsystem, the data are stored in the health database module in real time through a network, health diagnosis and analysis evaluation are performed by the health management software, and if a fault mode affecting normal operation of the radar is detected, the data processing software module warns a user to switch the radar system to an offline mode to perform maintenance BIT test mode.
8. The phased array weather radar health management system as claimed in claim 7, wherein in the maintenance BIT test mode, radar crew can run necessary offline test items to obtain test data, the health management software module performs comprehensive diagnosis with test results of the online test items to determine fault positions of the radar system, and the radar crew is assisted in radar maintenance.
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| CN115037360B (en) * | 2022-08-09 | 2022-11-08 | 沈阳航盛科技有限责任公司 | Health management method of satellite communication antenna system |
| CN115118333B (en) * | 2022-08-29 | 2022-11-29 | 成都戎星科技有限公司 | Antenna health management system and method for satellite ground station |
| CN115166661A (en) * | 2022-09-05 | 2022-10-11 | 江苏万邦微电子有限公司 | TR component wave control module based on built-in ID code |
| CN115754941B (en) * | 2022-11-14 | 2023-08-29 | 扬州宇安电子科技有限公司 | Distributed radar running state monitoring system and method based on artificial intelligence |
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