Cloud base height detection system and method

Abstract

The invention provides a cloud base height detection system and method, and relates to the technical field of meteorological detection, and the system comprises a detector, a detected source and a processing module. The detector comprises at least one sounding module, and each sounding module comprises a sonde and a sounding floating body; and the sonde is connected with the corresponding sounding floating body through a connecting rope with a preset length. The sonde takes self height data corresponding to the moment when the sounding floating body is immersed into the cloud layer as first target height data and transmits the first target height data to the processing module; meanwhile, the cloud bottom height, measured by the detected source at the same time, of the submerging cloud layer of the sounding floating body serves as second target height data and is transmitted to the processing module. And the processing module determines statistical data of the detected source according to the first target height data, the preset length and the second target height data so as to evaluate the cloud base measurement precision of the detected source. On the basis of low cost, the problems of accuracy verification and identification of equipment such as the cloud measuring radar and the like can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the field of meteorological detection technology, and in particular to a cloud base height detection system and method. Background Art

[0002] In order to ensure the safety of aircraft operations, cloud base height is often used as the main cloud physical parameter. For example, the cloud base height can be used to decide whether an airport can be opened, and the cloud height distribution can be determined based on the cloud base height to evaluate the impact of super-high obstacles (such as mountains, buildings, etc.) on aircraft takeoff and landing.

[0003] The accuracy of cloud base height measurement determines the level of refinement of aviation meteorological support. The existing cloud base height measurement methods include: cloud curtain balloon, cloud curtain lamp, infrared radiometer, aircraft measurement and other methods. Among them, the cloud curtain balloon measurement method has high measurement cost; the cloud curtain lamp measurement operation is complicated; the inversion accuracy of the infrared radiometer is limited; the aircraft measurement organization is difficult and costly. The accuracy detection of existing radar and other devices depends on the accuracy of cloud base height measurement. If the accuracy of cloud base height measurement is low, it will greatly interfere with the accuracy detection of the detector.

[0004] Based on this, there is an urgent need for a simple and efficient cloud base height measurement method that can improve the problems of low precision and complex organization of cloud base height measurement in existing technologies on a low-cost basis, and effectively improve the measurement accuracy verification and identification of devices such as cloud measuring radars. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a cloud base height detection system and method, which can improve the problems of high cloud base height measurement cost, low measurement accuracy and complex monitoring in the prior art, thereby greatly improving the measurement accuracy verification and identification of cloud measuring radars.

[0006] In order to achieve the above purpose, the technical solution adopted by the embodiment of the present invention is as follows:

[0007] In a first aspect, the present invention provides a cloud bottom height detection system, which includes a detector, a detected source, and a processing module; the detector includes at least one sounding module, each sounding module includes a sounding instrument and a sounding float; the sounding instrument is connected to the corresponding sounding float through a connection rope of a preset length; the detected source is a cloud bottom detection device of a to-be-determined accuracy; the processing module is in communication connection with the detector and the detected source;

[0008] Wherein, for any sounding module, the sonde is used to monitor its own height data rising with the corresponding sounding float in real time; and transmit its own height data corresponding to the marking time as the first target height data to the processing module; the marking time is characterized as the moment when the sounding float sinks into the cloud layer;

[0009] The detected source is used to monitor the cloud base height of the cloud layer in real time, and transmit the cloud base height corresponding to the marking time as the second target height data to the processing module;

[0010] The processing module is further used to determine the statistical data of the detected source according to the first target height data, the preset length and the second target height data, so as to evaluate the measurement accuracy of the detected source.

[0011] Optionally, the processing module is further used to determine third target height data according to the first target height data and the preset length; the third target height data is used to characterize the actual cloud bottom height obtained by the detector;

[0012] The processing module is further used to determine the statistical data of the detected source according to the third target height data and the second target height data.

[0013] Optionally, for any sounding module, the sonde is used to monitor in real time its own position data when the corresponding sounding float rises to any height; and transmits its own position data corresponding to the marked moment as the target position data to the processing module;

[0014] The processing module is also used to determine the vertical distance between the current sonde and the corresponding sonde float according to the target position data and the preset length;

[0015] The processing module is further used to determine the third target height data according to the vertical distance and the first target height data.

[0016] Optionally, the target position data includes the latitude and longitude data corresponding to the current sonde at the marking time, and the processing module is further used to determine the amplitude and angle of the straight-line distance between the current sonde and the corresponding sonde float in the vertical direction based on the latitude and longitude data; the vertical direction is used to represent the direction perpendicular to the horizontal plane where the current sonde is located;

[0017] The processing module is also used to determine the vertical distance between the current detector and the corresponding sounding float based on the amplitude, opening angle and preset length.

[0018] Optionally, the expression of the third target height data satisfies:

[0019] S i =H i +L ′ i ;

[0020] Among them, S i is the actual cloud base height obtained by the detector during the i-th measurement; H i is the first target height data obtained by the radiosonde during the i-th measurement; L ′ i is the vertical distance between the current detector and the corresponding sounding float during the i-th measurement.

[0021] Optionally, the statistical data includes a mean deviation, a root mean square error, and a correlation coefficient. When the statistical data is the root mean square error, the calculation formula of the statistical data is expressed as:

[0022]

[0023] Where σ is the root mean square error; n is the number of measurements; S i h is the actual cloud base height obtained by the detector during the i-th measurement; i It is the second target height data obtained by the detection source during the i-th measurement.

[0024] In a second aspect, the present invention further provides a cloud bottom height detection method, which is applied to a cloud bottom height detection system of any one of the first aspects above, the cloud bottom height detection system comprising a detector, a detected source and a processing module; the detector comprises a plurality of sounding modules, each of which comprises a sounding instrument and a sounding float; the sounding instrument is connected to the corresponding sounding float via a connecting rope of a preset length; the detected source is a cloud bottom detection device to be determined in terms of accuracy; the processing module is in communication connection with the detector and the detected source; the cloud bottom height detection method comprises the following steps: for any sounding module,

[0025] The sonde is used to monitor the self-height data of the corresponding sounding float in real time; and the self-height data corresponding to the marking time is used as the first target height data and transmitted to the processing module; the marking time is characterized as the moment when the sounding float enters the cloud layer;

[0026] The detected source is used to monitor the cloud base height of the cloud layer in real time; and the cloud base height corresponding to the marking time is used as the second target height data and transmitted to the processing module;

[0027] The processing module is used to determine the statistical data of the detected source according to the first target height data, the preset length and the second target height data to evaluate the measurement accuracy of the detected source.

[0028] Optionally, the step of using the processing module to determine the statistical data of the detected source according to the first target height data, the preset length and the second target height data includes:

[0029] Determine the third target height data according to the first target height data and the preset length; the third target height data is used to characterize the actual cloud bottom height obtained by the detector;

[0030] The statistical data of the detected source is determined according to the third target height data and the second target height data.

[0031] Optionally, the step of determining the third target height data according to the first target height data and the preset length includes:

[0032] For any sounding module, the sonde is used to monitor the position data of the corresponding sounding float in real time when it rises to any height; and the position data of the corresponding position at the marked moment is used as the target position data and transmitted to the processing module;

[0033] Determine the vertical distance between the current sonde and the corresponding sonde float according to the target position data and the preset length by using the processing module;

[0034] The processing module is used to determine the third target height data according to the vertical distance and the first target height data.

[0035] Optionally, the statistical data includes a mean deviation, a root mean square error, and a correlation coefficient. When the statistical data is the root mean square error, the calculation formula of the statistical data is expressed as:

[0036]

[0037] Where σ is the root mean square error; n is the number of measurements; S i h is the actual cloud base height obtained by the detector during the i-th measurement; i It is the second target height data obtained by the detection source during the i-th measurement.

[0038] The cloud bottom height detection system and method provided by the embodiments of the present invention have the following beneficial effects:

[0039] The present invention provides a cloud bottom height detection system, including a detector, a detected source and a processing module; the detector includes at least one sounding module, each sounding module includes a sonde and a sounding float; the sonde is connected to the corresponding sounding float through a connection rope of a preset length; the detected source is a cloud bottom detection device of a to-be-determined accuracy; the processing module is in communication connection with the detector and the detected source. Among them, for any sounding module, the sonde is used to monitor its own height data rising with the corresponding sounding float in real time; the own height data corresponding to the marking moment is transmitted to the processing module as the first target height data; the marking moment is characterized as the moment when the sounding float is immersed in the cloud layer. The detected source is used to monitor the cloud bottom height of the cloud layer in real time, and transmit the cloud bottom height corresponding to the marking moment as the second target height data to the processing module. The processing module is used to determine the statistical data of the detected source based on the first target height data, the preset length and the second target height data to evaluate the measurement accuracy of the detected source. Based on this, the present invention provides a cloud base height measurement solution, which can obtain accurate measurement values ​​of cloud base height with high efficiency on the basis of low cost, can be as close as possible to the true value of cloud base height observed by the human eye, greatly improves the efficiency and accuracy of cloud base height measurement capability test comparison, and effectively solves the accuracy verification and identification problems of equipment such as cloud measuring radar.

[0040] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0042] Figure 1 One of the structural schematic diagrams of the cloud base height detection system provided by an embodiment of the present invention is shown;

[0043] Figure 2 The second structural schematic diagram of the cloud bottom height detection system provided by the embodiment of the present invention is shown;

[0044] Figure 3 A detection schematic diagram of a cloud bottom height detection system in an embodiment of the present invention is shown;

[0045] Figure 4 A schematic diagram showing the relative relationship between the sonde and the sonde float during the ascending process in an embodiment of the present invention is shown;

[0046] Figure 5 A schematic diagram showing the steps of a cloud bottom height detection method provided by an embodiment of the present invention is shown;

[0047] Figure 6 A schematic diagram of the steps of step 300 in an embodiment of the present invention is shown;

[0048] Figure 7 A schematic diagram of the steps of step 301 in an embodiment of the present invention is shown.

[0049] Icons: 10- cloud base height detection system; 11- detector; 12- detected source; 13- processing module; 21- sonde; 22- sonde float; 23- sonde module. DETAILED DESCRIPTION

[0050] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0051] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0052] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0053] As described in the background technology, the existing cloud base height measurement has the problems of high cost, low precision and complex monitoring. On this basis, in order to improve the detection accuracy of the detected device under test, this embodiment provides a cloud base height measurement solution, which can improve the problems of low precision and complex monitoring of cloud base height measurement in the existing technology on the basis of low cost, and greatly improve the precision detection accuracy of devices such as radar.

[0054] The above cloud bottom height detection scheme will be introduced in detail below.

[0055] Please refer to Figure 1 , Figure 1 The schematic diagram of the structure of a cloud bottom height detection system provided by the present invention is shown, wherein the cloud bottom height detection system 10 includes a detector 11, a detected source 12 and a processing module 13; the detector 11 includes at least one sounding module 23, Figure 1 Based on the reference Figure 2 , Figure 2 Another structural schematic diagram of a cloud bottom height detection system provided by the present invention is shown, each sounding module 23 includes a sonde 21 and a sounding float 22; the sonde 21 is connected to the corresponding sounding float 22 via a connection rope of a preset length. The detected source 12 is a cloud bottom detection device whose accuracy is to be determined; the processing module 13 is in communication connection with the detected source 12 and each sounding module 23.

[0056] Among them, for any sounding module 23, the sonde 21 is used to monitor its own height data rising with the corresponding sounding float in real time; and transmit its own height data corresponding to the marking moment as the first target height data to the processing module; the marking moment is represented by the moment when the sounding float sinks into the cloud layer.

[0057] The detected source 12 is used to monitor the cloud base height of the cloud layer in real time, and transmit the cloud base height corresponding to the marking time as the second target height data to the processing module.

[0058] The processing module 13 is further used to determine the statistical data of the detected source according to the first target height data, the preset length and the second target height data, so as to evaluate the measurement accuracy of the detected source.

[0059] Please refer to Figure 2 ,refer to Figure 3 , Figure 3 A detection schematic diagram of the cloud base height detection system in this embodiment is shown; in this embodiment, the moment when the sounding float sinks into the cloud layer is used as the marking moment, and at this marking moment, the first target height data is obtained by using the sonde 21, and the second target height data is obtained by using the detected source 12, so that the processing module 13 is used to determine statistical data based on the first target height data and the second target height data, and then the accuracy of the detected source 12 is determined based on the statistical data.

[0060] In this embodiment, in order to reduce the complexity of the cloud bottom height detection system, the sounding float set in the detector can use a sounding balloon, and the sonde can use a Beidou / GPS navigation sonde, wherein the sounding balloon can be filled with an appropriate amount of hydrogen (or helium). The sonde and the sounding float are connected by a rope of a preset length. In this embodiment, the sonde can obtain the height distance and its own position information as the sounding float rises.

[0061] In this embodiment, the processing module 13 can be an integrated circuit chip with signal processing capabilities. The processing module 13 can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.

[0062] At the same time, the processing module 13 can be integrated with a memory to store the received height data. In this embodiment, the memory can be, but is not limited to, a random access memory (RAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable read-only memory (EEPROM), etc.

[0063] It should be noted that the detector 11 in this embodiment includes at least one sounding module 23, and one or more sounding modules can be adaptively selected for experiments during the detection process. In one possible implementation, when multiple sounding modules are selected, the detector in this embodiment will obtain multiple first target height data, and the processing module will perform data optimization at this time to obtain a more accurate first target height, that is, the first target height data obtained by the processing module 13 is the mean or mode of the first target height data obtained between the sounding modules 23. For clarity, unless otherwise specified, the following embodiments are all illustrated by taking the detector 11 as including a sounding module 23.

[0064] In this embodiment, in order to improve the detection accuracy, the sky cloud image can be observed in advance when the detection starts. For example, when the naked eye determines that the distribution of mid- / low-altitude layer clouds in the sky is more than 60%, the sounding balloon filled with hydrogen is released, and the sounding balloon is allowed to take off with the sonde 21. At this time, the sonde 21 detects its own height when the sounding float 22 rises in real time, and feeds back the corresponding own height to the processing module 13 in real time.

[0065] In a possible implementation, the sounding balloon can be observed to enter the cloud manually, and the moment when the sounding balloon enters the cloud and is just invisible to the naked eye is used as the marking moment. When the detector 11 in this embodiment includes a sounding module 23, the height data obtained by the sounding instrument 21 and the detected source 12 at the current moment, that is, the first target height data H and the second target height data H are respectively i , the second target height data is fed back to the processing module 13.

[0066] In this embodiment, to ensure that the first target height data H i The accuracy of the second target height data fed back to the processing module 13 can be determined by repeatedly reading the data multiple times, and using the mean or mode as the final target height data.

[0067] At the same time, in order to ensure that the processor can obtain more accurate first target height data, this embodiment can add an optical sighting guide device to facilitate human eyes to track the sounding balloon. The optical sighting guide device can also guide the detected source 12 to track the sounding balloon.

[0068] In a possible implementation, the detected source 12 may be a cloud detection radar to be detected. In this embodiment, the detected source 12 is used to monitor the cloud base height of the cloud layer in real time.

[0069] Please note that please refer to Figure 4 , Figure 4 A schematic diagram showing the relative relationship between the sonde 21 and the sonde float 22 under any sonde module 23 during the ascent process; since the sonde 21 and the sonde float 22 are connected by a rope of preset length, during the ascent process, when the sonde float 22 flies with the wind, the sonde 21 suspended below is disturbed and will swing in a cone around the rope.

[0070] Based on this, the processing module 13 is also used to determine the third target height data according to the first target height data and the preset length; the third target height data is used to characterize the actual cloud bottom height obtained by the detector 11.

[0071] The processing module 13 is further used to determine the statistical data of the detected source 12 according to the third target height data and the second target height data.

[0072] In this embodiment, the third target height data is used to characterize the actual cloud base height obtained by the detector 11, which is the sum of the plumb bob distance between the sonde 21 and the sonde float 22 and the detection distance of the sonde 21 (ie, the first target height data).

[0073] Specifically, for any sounding module 23, the sonde 21 is used to monitor in real time its own position data when the corresponding sounding float 22 rises to any height; and transmits its own position data corresponding to the marked moment as target position data to the processing module 13.

[0074] The processing module 13 is further used to determine the vertical distance between the current sonde 21 and the corresponding sonde float 22 according to the target position data and the preset length.

[0075] The processing module 13 is further configured to determine third target height data according to the vertical distance and the first target height data.

[0076] Furthermore, when the detector 11 includes multiple sounding modules 23, the processing module 13 can also perform statistical optimization on the third target height data obtained by the multiple sounding modules 23, for example, performing mean processing or mode processing, so as to use the optimized three target height data as the final third target height data of the detector 11, thereby improving the accuracy between the data.

[0077] In this embodiment, in order to determine the relative position between the sounding float 22 and the current sonde 21, the processing module 13 can obtain the position of the sonde 21 based on its own position, for example, its corresponding longitude-latitude-altitude position information (x i ,y i ,z i ) to determine the amplitude and angle of the conical pendulum motion process.

[0078] In a possible implementation, the target position data includes the latitude and longitude data corresponding to the current sonde 21 at the marking time.

[0079] The processing module 13 is also used to determine the amplitude and angle of the straight-line distance between the current sonde 21 and the corresponding sounding float 22 in the vertical direction based on the longitude and latitude data; the vertical direction is used to represent the direction perpendicular to the horizontal plane where the current sonde 21 is located.

[0080] The processing module 13 is also used to determine the vertical distance between the current detector 11 and the corresponding sounding float 22 according to the amplitude, the opening angle and the preset length.

[0081] Among them, the expression of the third target height data in this embodiment satisfies:

[0082] S i =H i +L ′ i ;

[0083] Among them, S i is the actual cloud base height obtained by the detector during the i-th measurement, i.e., the third target height data; H i is the first target height data obtained by the radiosonde during the i-th measurement; L ′ i is the vertical distance between the current detector and the corresponding sounding float during the i-th measurement.

[0084] In this embodiment, statistical data can be determined according to the third target height data and the second target height data, and then the accuracy of the detected source 12 can be evaluated according to the statistical data.

[0085] In this embodiment, the statistical data may include any one or more of the average deviation, the root mean square error and the correlation coefficient. When the statistical data is the root mean square error, the calculation formula of the statistical data is expressed as:

[0086]

[0087] Where σ is the root mean square error; n is the number of measurements; S i h is the actual cloud base height obtained by the detector during the i-th measurement; iIt is the second target height data obtained by the detection source during the i-th measurement.

[0088] Based on this, the present invention provides a cloud base height measurement solution, which can improve the problems of low accuracy and complex monitoring of cloud base height measurement in the prior art on the basis of low cost, and improve the precision detection accuracy of devices such as radar.

[0089] Similar to the previous embodiment, please Figure 1 Based on the reference Figure 5 , Figure 5 A step flow chart of the cloud bottom height detection method in the present embodiment is shown, and the cloud bottom height detection method is applied to the cloud bottom height detection system 10 of any one of the first aspects mentioned above, wherein the cloud bottom height detection system 10 includes a detector 11, a detected source 12 and a processing module 13; the detector 11 includes a plurality of sounding modules 23, each sounding module 23 includes a sonde 21 and a sounding float 22; the sonde 21 is connected to the corresponding sounding float 22 by a connecting rope of a preset length; the detected source 12 is a cloud bottom detection device of a to-be-determined accuracy; the processing module 13 is communicatively connected with the detector 11 and the detected source 12; the cloud bottom height detection method includes steps 100 to 300 for any sounding module.

[0090] Step 100, using the sonde to monitor the self-height data of the corresponding sounding float in real time as it rises; and transmitting the self-height data corresponding to the marking time as the first target height data to the processing module; the marking time is characterized as the moment when the sounding float sinks into the cloud layer.

[0091] Step 200: Use the detected source to monitor the cloud base height of the cloud layer in real time; and transmit the cloud base height corresponding to the marking time as the second target height data to the processing module.

[0092] Step 300: Utilize a processing module to determine statistical data of the detected source according to the first target height data, the preset length, and the second target height data to evaluate the measurement accuracy of the detected source.

[0093] exist Figure 5 Based on Figure 6 , Figure 6 A schematic diagram of step 300 is demonstrated, wherein step 300 of determining the statistical data of the detected source by using a processing module according to the first target height data, the preset length and the second target height data comprises at least step 301 and step 302.

[0094] Step 301, determining third target height data according to the first target height data and the preset length; the third target height data is used to characterize the actual cloud base height obtained by the detector;

[0095] Step 302: Determine the statistical data of the detected source according to the third target height data and the second target height data.

[0096] exist Figure 6 Based on Figure 7 , Figure 7 A step-by-step flow chart of step 301 in this embodiment is shown, wherein the step of determining the third target height data according to the first target height data and the preset length includes step 3011 , step 3012 and step 3013 .

[0097] Step 3011: For any sounding module, use the sonde to monitor in real time the own position data of the corresponding sounding float as it rises to any height; and use the own position data corresponding to the marked moment as the target position data and transmit it to the processing module.

[0098] Step 3012: using the processing module to determine the vertical distance between the current sonde and the corresponding sonde float according to the target position data and the preset length.

[0099] Step 3013: Determine third target height data according to the vertical distance and the first target height data by using a processing module.

[0100] The statistical data include mean deviation, root mean square error and correlation coefficient. When the statistical data is the root mean square error, the calculation formula of the statistical data is expressed as:

[0101]

[0102] Where σ is the root mean square error; n is the number of measurements; S i h is the actual cloud base height obtained by the detector during the i-th measurement; i It is the second target height data obtained by the detection source during the i-th measurement.

[0103] Based on this, the present invention provides a cloud bottom height detection system and method, which relates to the field of meteorological detection technology, wherein the cloud bottom height detection system includes a detector, a detected source and a processing module; the detector includes a plurality of sounding modules, each of which includes a sonde and a sounding float; the sonde is connected to the corresponding sounding float by a connecting rope of a preset length; the detected source is a cloud bottom detection device of a to-be-determined accuracy; the processing module is in communication connection with the detector and the detected source. Wherein, for any sounding module, the sonde uses its own height data corresponding to the moment when the sounding float sinks into the cloud layer as the first target height data, and transmits it to the processing module; at the same time, the cloud bottom height of the detected source at the moment when the sounding float sinks into the cloud layer is used as the second target height data, and transmits it to the processing module. The processing module then determines the statistical data of the detected source based on the first target height data, the preset length and the second target height data to evaluate the measurement accuracy of the detected source.

[0104] Based on this, the present invention provides a cloud base height measurement solution, which can obtain accurate measurement values ​​of cloud base height with high efficiency on the basis of low cost, can be as close as possible to the true value of cloud base height observed by the human eye, greatly improves the efficiency and accuracy of cloud base height measurement capability test comparison, and effectively solves the accuracy verification and identification problems of equipment such as cloud measuring radar.

[0105] In several embodiments provided in the present application, it should be understood that the disclosed devices and methods can also be implemented in other ways. The device embodiments described above are merely schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of the present invention. In this regard, each box in the flowchart or block diagram can represent a module, a program segment or a part of the code, and a part of the module, program segment or code contains one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented with a dedicated hardware-based system that performs a specified function or action, or can be implemented with a combination of dedicated hardware and computer instructions.

[0106] In addition, the functional modules in the various embodiments of the present invention may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0107] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cloud base height detection system, characterized in that: The cloud bottom height detection system comprises a detector, a detected source and a processing module; the detector comprises at least one sounding module, each of which comprises a sounding instrument and a sounding float; the sounding instrument is connected to the corresponding sounding float via a connection rope of a preset length; the detected source is a cloud bottom detection device of a to-be-determined accuracy; the processing module is in communication connection with the detector and the detected source; Wherein, for any sounding module, the sonde is used to monitor its own height data rising with the corresponding sounding float in real time; and transmit its own height data corresponding to the marking time as the first target height data to the processing module; the marking time is characterized as the time corresponding to the sounding float sinking into the cloud layer; The detected source is used to monitor the cloud bottom height of the cloud layer in real time, and transmit the cloud bottom height corresponding to the marking time as the second target height data to the processing module; The processing module is further used to determine the statistical data of the detected source according to the first target height data, the preset length and the second target height data, so as to evaluate the measurement accuracy of the detected source.

2. The cloud bottom height detection system according to claim 1, characterized in that: The processing module is further used to determine third target height data according to the first target height data and the preset length; the third target height data is used to characterize the actual cloud bottom height obtained by the detector; The processing module is further used to determine the statistical data of the detected source according to the third target height data and the second target height data.

3. The cloud bottom height detection system according to claim 2, characterized in that: For any sounding module, the sonde is used to monitor in real time its own position data when the corresponding sounding float rises to any height; and transmits the own position data corresponding to the marked moment as the target position data to the processing module; The processing module is further used to determine the vertical distance between the current sonde and the corresponding sounding float according to the target position data and the preset length; The processing module is further used to determine third target height data according to the vertical distance and the first target height data.

4. The cloud bottom height detection system according to claim 3, characterized in that: The target location data includes the latitude and longitude data corresponding to the current radiosonde at the marked time. The processing module is further used to determine the amplitude and angle of the straight-line distance between the current sonde and the corresponding sounding float in the vertical direction according to the latitude and longitude data; the vertical direction is used to represent the direction perpendicular to the horizontal plane where the current sonde is located; The processing module is also used to determine the vertical distance between the current detector and the corresponding sounding float according to the amplitude, the opening angle and the preset length.

5. The cloud bottom height detection system according to claim 4, characterized in that: The expression of the third target height data satisfies: S i =H i +L ′ i ; Among them, S i is the actual cloud base height obtained by the detector during the i-th measurement; H i is the first target height data obtained by the radiosonde during the i-th measurement; L ′ i is the vertical distance between the current detector and the corresponding sounding float during the i-th measurement.

6. The cloud bottom height detection system according to any one of claims 1 to 5, characterized in that: The statistical data include mean deviation, root mean square error and correlation coefficient. When the statistical data is the root mean square error, the calculation formula of the statistical data is expressed as: Where σ is the root mean square error; n is the number of measurements; S i h is the actual cloud base height obtained by the detector during the i-th measurement; i It is the second target height data obtained by the detection source during the i-th measurement.

7. A cloud base height detection method, characterized in that: The cloud bottom height detection system applied to any one of claims 1 to 6 comprises a detector, a detected source and a processing module; the detector comprises a plurality of sounding modules, each of which comprises a sonde and a sounding float; the sonde is connected to the corresponding sounding float by a connecting rope of a preset length; the detected source is a cloud bottom detection device to be determined in terms of accuracy; the processing module is in communication connection with the detector and the detected source; the cloud bottom height detection method comprises the following steps: for any sounding module, The sonde is used to monitor the self-height data rising with the corresponding sounding float in real time; and the self-height data corresponding to the marked time is used as the first target height data and transmitted to the processing module; the marked time is characterized as the time corresponding to the sounding float sinking into the cloud layer; Using the detected source to monitor the cloud base height of the cloud layer in real time; and transmitting the cloud base height corresponding to the marking time as second target height data to the processing module; The processing module is used to determine statistical data of the detected source according to the first target height data, the preset length and the second target height data to evaluate the measurement accuracy of the detected source.

8. The cloud bottom height detection method according to claim 7, characterized in that: The step of using the processing module to determine the statistical data of the detected source according to the first target height data, the preset length and the second target height data comprises: Determining third target height data according to the first target height data and the preset length; the third target height data is used to characterize the actual cloud base height obtained by the detector; The statistical data of the detected source is determined according to the third target height data and the second target height data.

9. The cloud bottom height detection method according to claim 8, characterized in that: The step of determining the third target height data according to the first target height data and the preset length includes: For any sounding module, the sonde is used to monitor in real time the own position data when the corresponding sounding float rises to any height; and the own position data corresponding to the marked moment is used as the target position data and transmitted to the processing module; Determine the vertical distance between the current sonde and the corresponding sounding float according to the target position data and the preset length by using the processing module; The processing module is used to determine third target height data according to the vertical distance and the first target height data.

10. The cloud bottom height detection method according to any one of claims 7 to 9, characterized in that: The statistical data include mean deviation, root mean square error and correlation coefficient. When the statistical data is the root mean square error, the calculation formula of the statistical data is expressed as: Where σ is the root mean square error; n is the number of measurements; S i h is the actual cloud base height obtained by the detector during the i-th measurement; i It is the second target height data obtained by the detection source during the i-th measurement.

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