A remote monitoring system, a monitoring method and an integrated controller

Abstract

The embodiment of the present application provides a remote monitoring system, a monitoring method and an integrated controller, and at least comprises an online calibration subsystem, wherein the online calibration subsystem comprises an acquisition module and a calibration module; the acquisition module is used for acquiring a calibration error of a calibration item of a radar to be monitored; and the calibration module is used for remotely and online calibrating the radar to be monitored by using a revised value revised from the calibration error acquired by the acquisition module. When it is found that the calibration of a radar system deviates or a problem occurs in equipment operation, online error calibration and calibration can be realized, the fault position of the radar can be quickly judged, and normal operation of an L-band radar system is ensured.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of radar remote control technology, and in particular to a remote monitoring system, monitoring method and integrated controller. Background Technology

[0002] Currently, all L-band wind-measuring radars in the national meteorological system are manned, with maintenance and calibration performed regularly by technical support personnel at all levels of the meteorological department in conjunction with manufacturer technicians. However, due to the significant increase in the turnover of technical support personnel for L-band wind-measuring radars in recent years, the overall technical support capabilities of the station radars have declined, necessitating regular inspections of the calibration and operational status of the station radars. Furthermore, the calibration and operational status of L-band wind-measuring radars can only be understood from the monthly reports submitted by the stations through the ASOM2.0 meteorological system; real-time monitoring of the calibration status is not possible, and on-site verification and validation are particularly difficult. Summary of the Invention

[0003] To address the technical problems existing in the prior art, embodiments of the present invention provide a remote monitoring system, a monitoring method, and an integrated controller.

[0004] In a first aspect, embodiments of the present invention provide a remote monitoring system, including at least an online calibration subsystem, wherein the online calibration subsystem includes an acquisition module and a calibration module, the acquisition module is used to acquire the calibration error of the calibration items of the radar to be monitored, and the calibration module is used to remotely calibrate the radar to be monitored online by using the correction value obtained by the acquisition module after correcting the calibration error.

[0005] Secondly, embodiments of the present invention provide a remote monitoring method, including:

[0006] Obtain the calibration error of the calibration items of the radar to be monitored;

[0007] The radar to be monitored is remotely calibrated online by correcting the calibration error using the corrected value.

[0008] Thirdly, embodiments of the present invention provide an integrated controller for a remote monitoring system, including the remote monitoring system described in the first aspect.

[0009] The remote monitoring system, monitoring method, and integrated controller provided in this invention establish a remote control and monitoring system for the L-band radiosonde radar by acquiring its calibration and operational status. This enables real-time checks on the radar's calibration and operational status. Furthermore, when calibration deviations or operational problems are detected, online error calibration and recalibration can be performed to quickly pinpoint the location of the radar fault, ensuring the normal operation of the L-band radar system. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of the remote monitoring system provided in an embodiment of the present invention;

[0012] Figure 2 A flowchart illustrating the remote monitoring method provided in an embodiment of the present invention;

[0013] Figure 3 This is a schematic diagram of the structure of the integrated controller of a remote monitoring system provided in an embodiment of the present invention;

[0014] Figure 4a This is a schematic diagram of the structure of the horizontal calibration unit provided in an embodiment of the present invention;

[0015] Figure 4b This is a schematic diagram of the control flow of the horizontal calibration unit provided in an embodiment of the present invention;

[0016] Figure 5 This is a schematic diagram of the structure of the radar elevation calibration unit and azimuth calibration unit provided in an embodiment of the present invention;

[0017] Figure 6 This is a schematic diagram of the zero-point calibration unit provided in an embodiment of the present invention;

[0018] Figure 7 This is a schematic diagram of the structure of a power supply system unit provided in an embodiment of the present invention;

[0019] Figure 8 This is a schematic diagram of the power control unit provided in an embodiment of the present invention;

[0020] Figure 9 This is a schematic diagram of the structure of a computer remote control unit provided in an embodiment of the present invention;

[0021] Figure 10 This is a schematic diagram of the antenna control unit provided in an embodiment of the present invention;

[0022] Figure 11 This is a schematic diagram of the structure of the online error correction unit provided in an embodiment of the present invention. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Figure 1 This is a schematic diagram of the structure of the remote monitoring system provided in an embodiment of the present invention, such as... Figure 1 As shown, the system includes at least an online calibration subsystem, wherein the online calibration subsystem includes an acquisition module 10 and a calibration module 20. The acquisition module 10 is used to acquire the calibration error of the calibration items of the radar to be monitored, and the calibration module 20 is used to perform remote online calibration of the radar to be monitored by using the correction value after correcting the calibration error acquired by the acquisition module.

[0025] Optionally, the calibration items of the radar to be monitored are: radar antenna levelness, radar elevation angle of zero degrees, radar azimuth of zero degrees, and radar range of zero.

[0026] Specifically, the remote monitoring system provided in this embodiment of the invention includes at least an online calibration subsystem, comprising an acquisition module and a calibration module. The acquisition module is used to promptly detect calibration errors in the elevation angle, azimuth, zero-range distance, and electrical axis of the L-band radar, acquire and confirm the specific values ​​of the errors, and determine whether the errors require calibration. The calibration module is used to remotely calibrate the radar under monitoring using the correction values ​​obtained by the acquisition module after correcting the calibration errors. When a radar calibration error occurs, the cause of the calibration error needs to be determined, and a specific method for remotely adjusting the radar calibration is provided, eliminating the need for technicians to perform calibration at the L-band radar station.

[0027] Optionally, correcting the calibration error obtained by the acquisition module specifically involves:

[0028] If the calibration error of the calibration item of the radar to be monitored exceeds the threshold, the calibration error of the radar to be monitored shall be corrected.

[0029] Based on the above embodiments, when the errors in elevation, azimuth, zero-range distance, and electrical axis of the L-band radar are found to exceed the thresholds of the operational specifications, the calibration error of the L-band radar can be corrected in a timely manner after obtaining approval from the management department.

[0030] Based on the above embodiments, the system also includes an online monitoring subsystem for monitoring fixed targets, related targets, three-axis consistency, operational status, UPS, and working environment of the radar to be monitored, wherein the three axes are the radar optical axis, mechanical axis, and electrical axis.

[0031] The system can not only correct the calibration error of the radar calibration items, but also monitor the fixed target, the target with contact, the three-axis consistency, the operational status, the UPS and the working environment of the radar in real time. It also includes monitoring the working status of the radar during real-time operation of the ball release, the electrical axis status during the stable period of the radar ball release, and confirming the overall operating status of the L-band radar.

[0032] The remote monitoring system provided in this invention establishes a remote control and monitoring system for the L-band radiosonde radar by acquiring its calibration and operational status, enabling real-time checks on the radar's calibration and operation. Furthermore, when calibration deviations or operational problems are detected, the system can perform online error calibration and recalibration, quickly pinpointing the location of the radar fault and ensuring the normal operation of the L-band radar system.

[0033] Figure 2 This is a flowchart illustrating the remote monitoring method provided in an embodiment of the present invention, as shown below. Figure 2 As shown, the method includes:

[0034] S100: Obtain the calibration error of the calibration items of the radar to be monitored;

[0035] S200. The radar to be monitored is remotely calibrated online using the correction value after correcting the calibration error.

[0036] Specifically, the calibration error of the calibration items of the radar to be monitored is obtained, wherein the calibration items of the radar to be monitored are: radar antenna levelness, radar elevation angle zero degrees, radar azimuth zero degrees and radar range zero point; the radar to be monitored is remotely calibrated online by correcting the calibration error with the correction value.

[0037] Optionally, the method further includes remote online monitoring of the radar to be monitored.

[0038] Based on the above embodiments, the remote online monitoring of the radar to be monitored specifically includes monitoring the fixed target, the target object, the three-axis consistency, the business operation status, the UPS and the working environment of the radar to be monitored, wherein the three axes are the radar optical axis, the mechanical axis and the electrical axis.

[0039] This invention also provides an integrated controller for a remote monitoring system, such as... Figure 3 As shown, the remote monitoring system includes the aforementioned system. The integrated controller is used to acquire calibration error data of the antenna mount, gun sight, and radar target of the radar to be monitored. By correcting the calibration error data, the main unit, servo system, and radar auxiliary facilities are remotely monitored.

[0040] The integrated controller of the remote monitoring system remotely controls the L-band radar to collect calibration error data and transmits the calibration error correction value of the L-band radar to the operational computer through the China (Global) Marine Meteorological Observation Platform. Technical support personnel then perform remote online calibration of the L-band radar based on the correction value.

[0041] Specifically, the integrated controller can check the remote control status of the radar;

[0042] The integrated controller provided in this embodiment of the invention is used to check whether the remote control of each subsystem of the radar is normal, that is, to remotely check whether the power on and off of each subsystem of the radar is normal.

[0043] Specifically, the integrated controller can check the status of the radar antenna gun sight;

[0044] The integrated controller provided in this embodiment of the invention checks whether the camera mounted on the gun sight is working properly, that is, whether it can accurately align the radar antenna with the fixed target of the radar station and display it normally on the camera.

[0045] Specifically, the integrated controller can perform online checking and calibration of the radar antenna's levelness; the integrated controller includes a level calibration unit, such as... Figure 4a As shown, the horizontal calibration unit includes: a position controller, a driver, a servo motor, a level / position sensor, and at least one lead screw.

[0046] The position of the lead screw is adjusted by the horizontal calibration unit to obtain a suitable position. Furthermore, leveling lead screws 1 and 2 adjust the limit switches of the level instrument by controlling the leveling motor and driver. The position of the level instrument is further adjusted by the limit switches. Figure 4b As shown.

[0047] In actual use, the antenna is rotated clockwise and counterclockwise one full turn respectively. The system automatically obtains the data from the level instrument mounted on the radar antenna base. Based on the data, it calculates whether the radar level meets the accuracy of L-band radar level. If it does not meet the requirements, the system remotely adjusts the three motors installed on the radar base according to the level adjustment scheme provided by the system until the radar antenna reaches the accuracy of L-band radar level.

[0048] Specifically, the integrated controller can perform online checks and calibrations of the radar elevation and azimuth; Figure 5 The integrated controller further includes a radar elevation calibration unit and an azimuth calibration unit. The radar elevation calibration unit and the azimuth calibration unit include a GPS differential positioning and orientation system, an RS232 interface, a CPU, and a power-off memory. The CPU is used to correct the radar elevation and azimuth.

[0049] In the specific implementation process, after checking the levelness of the radar antenna, the radar antenna is remotely controlled to be aimed at a fixed target at the radar station. The system automatically acquires the elevation and azimuth readings from the L-band radar operational software and compares them with the readings recorded by the system for the fixed target. The CPU acquires the error values ​​of the elevation and azimuth, and technicians determine whether to correct the errors based on the specific circumstances. Two to three fixed targets should be selected.

[0050] Specifically, the integrated controller can perform online checks and calibrations of the radar range null point; Figure 6 The integrated controller further includes a zero-point calibration unit, which includes a rangefinder, a terminal board, an online correction unit, and a computer. The online correction unit is used to calibrate the radar distance zero point.

[0051] Radar zero-point calibration includes both short-range and long-range transmitters. Short-range transmitter calibration involves remotely powering on the transponder and the short-range transmitter at a known distance, and obtaining the error value through the operational application software. Long-range transmitter calibration is performed during operational deployment by observing the differences in elevation and atmospheric distance measured in the operational software. Error correction requires approval from the support department. Errors are corrected through the system's calibration module.

[0052] Specifically, the integrated controller can check, calibrate, and standardize the radar axis; the integrated controller also includes an axis calibration unit; the axis calibration unit includes at least a network camera and a CPU, wherein the network camera is used to acquire the crosshairs in the gun sight, and the CPU is used to calculate the deviation of the axis.

[0053] Under clear weather conditions, twenty minutes after the ball is launched, the four bright lines displayed on the radar oscilloscope are at the same altitude. At this point, using a network camera mounted on the radar antenna's gun sight, the airborne transponder's movement within the crosshairs of the gun sight is observed. Technicians can determine the electrical axis deviation by observing the transponder's position in the gun sight. Error correction requires approval from the support department. The error is corrected through the system's calibration module.

[0054] Specifically, the integrated controller also includes remote control of the radar's power supply system, such as... Figure 7 The integrated controller also includes a power supply system unit, comprising a computer, a UPS power supply, a remote control switch, and a subsystem power supply unit. The computer controls the UPS power supply, and then controls the remote control switch and the subsystem power supply switch to supply power to each subsystem.

[0055] Specifically, the integrated controller also includes remote control of the radar's power supply, such as... Figure 8 As shown, the integrated controller also includes a power control unit, comprising a remote server, a router, and a network power controller. The remote server controls the router, i.e., the network power controller, via Ethernet to control each power output.

[0056] Specifically, the integrated controller also includes remote control via computer, such as... Figure 9 As shown, the integrated controller also includes a computer remote control unit, comprising a remote server, a router, a PIE network control power-on card, a radar remote control computer, and an L-band radar terminal computer. The remote server controls the PIE network control power-on card through the router, thereby controlling the output of the radar remote control computer and the L-band radar terminal computer.

[0057] Specifically, the integrated controller also includes remote control of the radar antenna, such as... Figure 10 As shown, the integrated controller also includes an antenna control unit, which includes a computer, an antenna control manual analog voltage, a relay, and a variable resistor. The computer controls the relay by controlling the antenna control manual analog voltage, thereby controlling the voltage output.

[0058] Specifically, the integrated controller further includes an online error correction unit, such as... Figure 11 As shown, the online error correction unit includes an axis angle plate, an antenna control plate, a terminal board, an online correction unit, and a computer. The online error correction unit corrects the radar antenna horizontality, radar elevation angle (zero degrees), radar azimuth angle (zero degrees), and radar range (zero point) online.

[0059] The "L-band Radar Remote Online Calibration System" can replace the on-site inspection work of technicians for L-band radars, enabling remote online calibration and monitoring of L-band radars. This allows for timely understanding of the technical status of the station's L-band radars, ensuring the normal operation of the L-band radiosonde system and further improving the quality of L-band radiosonde data. The system can also promptly detect L-band radar faults, take timely emergency support measures, and repair the radar as soon as possible, further shortening the downtime of L-band radars and improving the operational availability of the radars.

[0060] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0061] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An integrated controller of a remote monitoring system, characterized by, The system comprises a remote monitoring system, which comprises at least an online calibration subsystem, wherein the online calibration subsystem comprises an acquisition module and a calibration module, the acquisition module is used to acquire calibration errors of calibration items of a radar to be monitored, and the calibration module is used to remotely calibrate the radar to be monitored by using a corrected value obtained by correcting the calibration errors acquired by the acquisition module. The system further comprises a horizontal calibration unit, which comprises a position controller, a driver, a servo motor, a level meter and at least one lead screw, the servo motor and the level meter are arranged on a radar antenna pedestal, data of the level meter are acquired, whether the level of the radar meets the accuracy of the level of an L-band radar is calculated according to the data, and when the level does not meet the requirement, the servo motor arranged on the radar pedestal is remotely adjusted according to a horizontal adjustment scheme until the level of the radar antenna meets the accuracy of the level of the L-band radar. The system further comprises an electric axis calibration unit, which comprises a network camera and a CPU, the network camera is used to acquire cross lines in a gun sight, and the CPU is used to calculate a deviation of an electric axis. The calibration items of the radar to be monitored are specifically: a radar antenna level, a radar elevation zero, a radar azimuth zero and a radar range zero. The system further comprises an error online correction unit, which comprises an axis angle plate, a sky control plate, a terminal plate, an online correction unit and a computer, and the error online correction unit is used to correct the radar antenna level, the radar elevation zero, the radar azimuth zero and the radar range zero of the radar online.

2. The integrated controller of claim 1, wherein, The integrated controller is used to acquire calibration error data of an antenna pedestal, a gun sight and a radar target of the radar to be monitored, and remotely monitor a main machine box, a servo system and radar auxiliary facilities by using a corrected value obtained by correcting the calibration error data.

3. The integrated controller of claim 1, wherein, The calibration errors acquired by the acquisition module are corrected, and the correction is specifically as follows: If the calibration errors of the calibration items of the radar to be monitored exceed a threshold value, the calibration errors of the radar to be monitored are corrected.

4. The integrated controller of claim 1, wherein, The system further comprises an online monitoring subsystem, which is used to monitor fixed targets, related targets, three-axis consistency, business working states, UPSs and working environments of the radar to be monitored.

5. A method for remote monitoring based on the integrated controller of any of claims 1-4, characterized in that, The system comprises: acquiring calibration errors of calibration items of a radar to be monitored; remotely calibrating the radar to be monitored by using a corrected value obtained by correcting the calibration errors.

6. The method of claim 5, wherein, The method further comprises remotely monitoring the radar to be monitored.

7. The method of claim 6, wherein, The remotely monitoring the radar to be monitored is specifically as follows: monitoring fixed targets, related targets, three-axis consistency, business working states, UPSs and working environments of the radar to be monitored.

8. The method of claim 5, wherein, The calibration items of the radar to be monitored are specifically: a radar antenna level, a radar elevation zero, a radar azimuth zero and a radar range zero.

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