A distributed radiation source warning device angle measurement fusion processing method

Abstract

The application particularly relates to a kind of distributed radiation source warning equipment angle measurement fusion processing methods, comprising: obtaining the interrupt number sent by each distributed warning equipment, alarm report;According to the time information, radiation source detection data are screened to alarm report, to obtain the multiple alarm reports belonging to the same radiation source, and for direction finding fusion processing;According to the signal amplitude parameter of radiation source in alarm report, the multiple alarm reports belonging to the same radiation source are screened, to obtain first alarm report, second alarm report;According to first alarm report, second alarm target report determines the position relationship of corresponding distributed warning equipment, and based on position relationship, the alarm direction of radiation source is direction finding fusion processing to determine the target direction information of radiation source.This method divides angle measurement algorithm into two steps, reduces the distributed warning pressure, also reduces fusion processing pressure.

Description

Technical Field

[0001] This invention relates to the field of radiation source measurement technology, and specifically to a method for angle fusion processing of distributed radiation source alarm devices. Background Technology

[0002] In related technologies, when detecting radiation sources, multiple distributed alarm devices can be combined to achieve 360-degree omnidirectional azimuth measurement coverage of a specific location, with each device responsible for covering only a certain angular range. However, existing solutions have limited accuracy in measuring the azimuth angle of radiation sources. Furthermore, the accuracy of azimuth measurement deteriorates at the edges of the distributed alarm devices, leading to some deviation in the measured azimuth angle of the radiation source.

[0003] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0004] This invention provides a method for angle measurement fusion processing of a distributed radiation source alarm device, a computer program product, and a storage medium, which can overcome the defects existing in the prior art to a certain extent.

[0005] Other features and advantages of the invention will become apparent from the following detailed description, or may be learned in part by practice of the invention.

[0006] According to a first aspect of the present invention, a method for angle fusion processing of a distributed radiation source alarm device is provided, the method comprising: Obtain the interrupt number and alarm report sent by each distributed alarm device; wherein, the interrupt number is used to represent the location index corresponding to the distributed alarm device; the alarm report includes: arrival time information based on GPS time, and radiation source detection data; Alarm reports are filtered based on arrival time information and radiation source detection data to obtain multiple alarm reports belonging to the same radiation source, which are then used for direction finding fusion processing. Based on the signal amplitude parameters of the radiation source in the alarm report, multiple alarm reports belonging to the same radiation source are filtered to obtain the first alarm report and the second alarm report; The location relationships of the corresponding distributed alarm devices are determined based on the first alarm report and the second alarm target report. Based on the location relationships, the alarm locations of the radiation source are fused by direction finding to determine the target orientation information of the radiation source.

[0007] In some exemplary embodiments, the method further includes: Within a preset processing cycle, when the fusion processing device obtains an interrupt number and an alarm report sent by a distributed alarm device, it determines the location index corresponding to the distributed alarm device based on the interrupt number. Based on the location index and alarm report corresponding to the distributed alarm device, the target orientation information of the radiation source is determined.

[0008] In some exemplary embodiments, alarm reports are filtered based on arrival time information and radiation source detection data to obtain multiple alarm target reports belonging to the same radiation source, and these reports are then used for direction-finding fusion processing, including: Based on the arrival time information, multiple alarm reports are compared in a loop, and alarm reports with the same arrival time are selected as reports to be analyzed. The radiation source detection data in each report to be analyzed are compared cyclically. Alarm reports with radiation source detection data differences less than a preset threshold are selected as alarm reports belonging to the same radiation source and used for direction finding fusion processing.

[0009] In some exemplary embodiments, multiple alarm reports belonging to the same radiation source are filtered based on the signal amplitude parameters of the radiation source in the alarm reports to obtain a first alarm report and a second alarm report, including: Based on the signal amplitude parameters in the radiation source detection data, the alarm reports are sorted from smallest to largest. The first alarm report and the second alarm report are determined according to the sorting results, and the other alarm reports are removed.

[0010] In some exemplary embodiments, Based on the first alarm report and the second alarm target report, the location relationship of the corresponding distributed alarm devices is determined. Then, based on this location relationship, direction-finding fusion processing is performed on the alarm location of the radiation source to determine its azimuth information, including: Identify the location relationship between the corresponding first distributed alarm device and second distributed alarm device based on the interrupt numbers of the first alarm report and the second alarm report; When it is determined that the first distributed alarm device and the second distributed alarm device are adjacent, the positional relationship between the first antenna channel of the first distributed alarm device and the second antenna channel of the second distributed alarm device is determined. When it is determined that the first antenna channel and the second antenna channel are adjacent, the amplitude comparison angle measurement operation is performed based on the first amplitude parameter corresponding to the first alarm report and the second amplitude parameter corresponding to the second alarm report to determine the angle measurement value; By combining the measured angle value with the base angle corresponding to the first distributed alarm device, the absolute angle information of the radiation source is determined.

[0011] In some exemplary embodiments, the method further includes: When it is determined that the first distributed alarm device and the second distributed alarm device are not adjacent, the absolute angle information of the radiation source is determined by combining the azimuth parameters in the first alarm report and the base angle of the first distributed alarm device.

[0012] In some exemplary embodiments, the method further includes: When it is determined that the first antenna channel and the second antenna channel are not adjacent, the absolute angle information of the radiation source is determined by combining the azimuth parameters in the first alarm report and the base angle of the first distributed alarm device.

[0013] In some exemplary embodiments, radiation source detection data includes any one or any combination of the following parameter types: frequency, repetition rate, pulse width, signal amplitude, and signal azimuth.

[0014] In some exemplary embodiments, the method further includes: Establish communication links between the fusion processing device and each distributed alarm device; Based on the number of antennas and the antenna coverage angle of the distributed alarm devices, the detection range is configured for each distributed alarm device to achieve omnidirectional coverage using multiple distributed alarm devices.

[0015] In some exemplary embodiments, the method further includes: The fusion processing device synchronously sends GPS time information to each distributed alarm device so that each distributed alarm device can synchronize its time based on the currently received GPS time information; Configure an interrupt number for each distributed alarm device, and configure a location index for each distributed alarm device based on the interrupt number.

[0016] According to a second aspect of the present invention, a computer program product is provided, on which a computer program is stored, and when the computer program is executed by a processor, the above-described angle fusion processing method for a distributed radiation source alarm device is implemented.

[0017] According to a third aspect of the present invention, a storage medium is provided having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the above-described angle fusion processing method for a distributed radiation source alarm device.

[0018] According to a fourth aspect of the present invention, an electronic device is provided, comprising: Processor, memory; The memory is used to store the executable instructions of the processor; the processor is configured to implement the above-described angle fusion processing method for distributed radiation source alarm devices when executing instructions by executing the executable instructions.

[0019] The distributed radiation source alarm device angle fusion processing method provided in the embodiments of the present invention performs cyclic comparison of interruption numbers and alarm reports fed back by each distributed alarm device to the fusion processing device. This filters out multiple alarm reports belonging to the same radiation source, determines specific calculation measurements based on the positional relationships of the distributed alarm devices, and performs direction-finding fusion processing to determine the target azimuth information of the radiation source. By utilizing the preliminary azimuth angle information obtained from the distributed alarm devices and then fusing the azimuth angle information measured by different devices, the overall process is completed in two steps, reducing the computational burden on both the front-end distributed alarm devices and the back-end fusion processing device. Furthermore, the fusion processing method improves the angle measurement accuracy at adjacent devices.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention. It is obvious that the drawings described below are merely some embodiments of the invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0022] Figure 1 This diagram illustrates an exemplary embodiment of the present invention: an angle fusion processing method for a distributed radiation source alarm device. Figure 2 This schematic diagram illustrates a system structure of a distributed alarm device and a fusion processing device according to an exemplary embodiment of the present invention. Figure 3 The diagram illustrates a direction-finding fusion processing flow according to an exemplary embodiment of the present invention. Figure 4 This diagram illustrates a main processing flow for angle measurement fusion of reports of the same type of target, as per an exemplary embodiment of the present invention. Figure 5 This schematic diagram illustrates the angle measurement distribution of four distributed alarm devices according to an exemplary embodiment of the present invention. Figure 6 The schematic diagram illustrates an electronic device according to an exemplary embodiment of the present invention. Detailed Implementation

[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the invention will be more comprehensive and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0024] Furthermore, the accompanying drawings are merely illustrative of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. Some block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0025] To address the shortcomings and deficiencies of existing technologies, this example embodiment provides a method for angle fusion processing in a distributed radiation source alarm device. (Reference) Figure 1 As shown, the method may include the following steps: Step S11: Obtain the interrupt number and alarm report sent by each distributed alarm device; wherein, the interrupt number is used to represent the location index corresponding to the distributed alarm device; the alarm report includes: arrival time information based on GPS time, and radiation source detection data; Step S12: Based on the arrival time information and radiation source detection data, the alarm reports are filtered to obtain multiple alarm reports belonging to the same radiation source, and used for direction finding fusion processing. Step S13: Based on the signal amplitude parameters of the radiation source in the alarm report, filter the multiple alarm reports belonging to the same radiation source to obtain the first alarm report and the second alarm report. Step S14: Determine the location relationship of the corresponding distributed alarm devices based on the first alarm report and the second alarm target report, and perform direction finding fusion processing on the alarm location of the radiation source based on the location relationship to determine the target orientation information of the radiation source.

[0026] The following will describe in more detail each step of the angle fusion processing method for the distributed radiation source alarm device in this exemplary embodiment, with reference to the accompanying drawings and embodiments.

[0027] For example, the method includes: Step S21: Establish communication links between the fusion processing device and each distributed alarm device; Step S22: Configure the detection range of each distributed alarm device according to the number of antennas and the antenna coverage angle, so as to achieve omnidirectional coverage using multiple distributed alarm devices.

[0028] Specifically, refer to Figure 2 The system architecture shown provides a fusion processing device and multiple distributed alarm devices that match it. Each distributed alarm device can be evenly distributed within a designated area, enabling real-time monitoring of electromagnetic signal radiation in that area and uploading the monitoring data to the fusion processing device. The fusion processing device can send command data to each distributed alarm device and perform data processing and fusion on the alarm reports returned by each device.

[0029] The detection range of each distributed alarm device can be configured according to the number of antennas and the antenna coverage angle, and multiple distributed alarm devices can be used to complete 360-degree monitoring coverage of a specified area.

[0030] For example, at least four distributed alarm devices can be configured, each with an effective monitoring range of 90 degrees. These four alarm devices can be evenly distributed around the perimeter of a designated area, enabling them to achieve 360-degree monitoring coverage.

[0031] Of course, in some exemplary embodiments, five, six, or more distributed alarm devices can be configured, enabling each alarm device to detect radiation signals over a smaller range. Furthermore, a certain overlap in detection range can be configured between adjacent alarm devices to ensure comprehensive coverage of the monitoring area. For example, the overlap in detection range between adjacent distributed alarm devices can be configured to be 5-10 degrees.

[0032] For example, the method further includes: Step S23: The fusion processing device synchronously sends GPS time information to each distributed alarm device so that each distributed alarm device can synchronize its time according to the currently received GPS time information. Step S24: Configure an interrupt number for each distributed alarm device, and configure a location index for each distributed alarm device based on the interrupt number.

[0033] Specifically, after establishing connections between the fusion processing device and each distributed alarm device, initialization can be performed. Specifically, the fusion processing device can send GPS time information to each distributed alarm device, allowing each alarm device to synchronize its time based on the received GPS time. Furthermore, the fusion processing device can configure corresponding interrupt numbers and location indexes for each alarm device. The interrupt number and location index can be correlated; the interrupt number serves as the identifier for the distributed alarm device, and the location index indicates the specific distribution location of the alarm device, as well as the coverage direction and baseline angle of the monitoring area. Additionally, the fusion processing device can send a task synchronization command carrying GPS time information to each distributed alarm device, which can then execute the command and initiate monitoring of radiation sources. These radiation sources can be electromagnetic signal radiation sources.

[0034] Each distributed alarm device measures angles independently, and multiple distributed alarm devices report their processed information to the fusion processing device. Alarm devices generally use amplitude comparison angle measurement to measure azimuth angles. If there is target information, each distributed alarm device reports the measured angle value and the maximum antenna amplitude value within the distributed alarm device.

[0035] In step S11, the interrupt number and alarm report sent by each distributed alarm device are obtained; wherein, the interrupt number is used to represent the location index corresponding to the distributed alarm device; the alarm report includes: arrival time information based on GPS time, and radiation source detection data.

[0036] For example, each distributed alarm device can generate a corresponding alarm report when it detects the presence of a radiation source. Simultaneously, the alarm device can upload its corresponding interrupt number and alarm report to the fusion processing device.

[0037] The alarm report may include: arrival time information based on GPS time, and radiation source detection data. The arrival time indicates the detection time of the current radiation source, and the radiation source detection data indicates the specific detection results of the current radiation source.

[0038] For example, radiation source detection data can include multiple different types of parameters, such as the frequency, repetition rate, pulse width, signal amplitude, and signal azimuth angle corresponding to the radiation source signal. Among them, repetition rate is short for repetition frequency, which refers to the number of times a periodic pulse repeats per second (in Hz), and in the field of radar, it specifically refers to the pulse repetition frequency (PRF).

[0039] For fusion processing devices, alarm reports from various distributed alarm devices can be received in real time. For example, a fusion processing device can simultaneously receive alarm reports from multiple alarm devices; or it can receive advanced function reports from a single alarm device for different radiation sources; or it can receive alarm reports from only one alarm device.

[0040] In step S12, alarm reports are filtered based on arrival time information and radiation source detection data to obtain multiple alarm reports belonging to the same radiation source, which are then used for direction finding fusion processing.

[0041] For example, step S12 described above may include: Step S31: Based on the arrival time information, compare multiple alarm reports in a loop and filter out alarm reports with the same arrival time as reports to be analyzed; Step S32: The radiation source detection data in each report to be analyzed are compared cyclically. Alarm reports with radiation source detection data differences less than a preset threshold are selected as alarm reports belonging to the same radiation source and used for direction finding fusion processing.

[0042] Specifically, for fusion processing equipment, a report queue can be pre-created. When multiple alarm reports are received within a preset data processing cycle, the alarm reports can be written into the report queue according to their arrival order. The arrival time of the alarm reports can be read sequentially and compared with the adjacent previous alarm report to achieve cyclic comparison of the arrival time of the alarm reports. For alarm reports with the same arrival time, or multiple alarm reports with arrival times less than a preset time threshold, they can be clustered into a group of reports to be analyzed for a second cyclic comparison of radiation source detection data.

[0043] refer to Figure 3 As shown, for reports with the same arrival time, the radiation source detection data can be compared again. Specifically, the data can be compared and classified according to the frequency, repetition rate, and pulse width of the radiation source target. Multiple alarm reports with data differences less than a preset threshold are filtered into one category, indicating that the multiple reports should belong to the same radiation source target, and then used for subsequent direction finding fusion processing.

[0044] In step S13, multiple alarm reports belonging to the same radiation source are filtered according to the signal amplitude parameters of the radiation source in the alarm report to obtain the first alarm report and the second alarm report.

[0045] For example, step S13 above may specifically include: sorting the alarm reports by the approximate size of the data according to the signal amplitude parameters in the radiation source detection data, determining the first alarm report and the second alarm report according to the sorting results, and removing other alarm reports.

[0046] Specifically, alarm reports can be sorted according to signal amplitude parameters in a classification result, and the two reports with the largest and second largest target amplitudes can be found and used as the first alarm report and the second alarm report, respectively, while the remaining reports with smaller target amplitudes are removed.

[0047] In step S14, the location relationship of the corresponding distributed alarm devices is determined according to the first alarm report and the second alarm target report, and the alarm location of the radiation source is fused based on the location relationship to determine the target orientation information of the radiation source.

[0048] For example, step S14 described above may specifically include: Step S41: Identify the location relationship between the corresponding first distributed alarm device and the second distributed alarm device based on the interrupt numbers of the first alarm report and the second alarm report; Step S42: When it is determined that the first distributed alarm device and the second distributed alarm device are adjacent, determine the positional relationship between the first antenna channel of the first distributed alarm device and the second antenna channel of the second distributed alarm device. Step S43: When it is determined that the first antenna channel and the second antenna channel are adjacent, the amplitude comparison angle measurement operation is performed according to the first amplitude parameter corresponding to the first alarm report and the second amplitude parameter corresponding to the second alarm report to determine the angle measurement value; Step S44: Combine the angle measurement value with the base angle corresponding to the first distributed alarm device to determine the absolute angle information of the radiation source.

[0049] Specifically, after filtering out the first alarm report and the second alarm report, the location index of the first distributed alarm device corresponding to the first alarm report and the location index of the second distributed alarm device corresponding to the second alarm report can be determined first, based on the correspondence between the corresponding interrupt number and the location index. The location relationship between the two alarm devices can then be determined based on the location indexes.

[0050] If two alarm devices are adjacent, the first antenna channel corresponding to the first distributed alarm device in the first alarm report and the second antenna channel corresponding to the second distributed alarm device in the second alarm report can be read; and the positional relationship between the two antenna channels can be determined.

[0051] If the two antenna channels of two alarm devices are adjacent, the amplitude difference angle measurement value can be calculated using the amplitude values ​​of the corresponding two line channels. The angle measurement value is then added to the base angle of the distributed alarm device where the target amplitude report is located (the base angle is different for each distributed alarm device) to obtain the final absolute angle value. Amplitude difference angle measurement is a radar angle measurement method that determines the target angle by comparing the amplitude difference of signals received from two different beams. It is generally divided into two forms: sum-difference beam amplitude comparison and adjacent beam amplitude comparison.

[0052] For example, the method further includes: Step S45: When it is determined that the first distributed alarm device and the second distributed alarm device are not adjacent, the absolute angle information of the radiation source is determined by combining the azimuth parameters in the first alarm report and the base angle of the first distributed alarm device.

[0053] Specifically, when it is determined that two alarm devices are not adjacent based on the location index, the absolute angle information of the radiation source can be calculated using only the azimuth parameter in the first alarm report and the base angle of the first distributed alarm device.

[0054] For example, the method further includes: Step S46: When it is determined that the first antenna channel and the second antenna channel are not adjacent, the absolute angle information of the radiation source is determined by combining the azimuth parameters in the first alarm report and the base angle of the first distributed alarm device.

[0055] Specifically, when two alarm devices are determined to be adjacent based on the location index, but the corresponding two antenna channels are not adjacent, the absolute angle information of the radiation source can be calculated using only the azimuth parameter in the first alarm report and the base angle of the first distributed alarm device.

[0056] For example, the method further includes: Step S51: Within a preset processing cycle, when the fusion processing device obtains an interrupt number and an alarm report sent by a distributed alarm device, it determines the location index corresponding to the distributed alarm device based on the interrupt number. Step S52: Based on the location index and alarm report corresponding to the distributed alarm device, determine the target orientation information of the radiation source.

[0057] Specifically, if the fusion processing device receives only one alarm report within a certain period of time, it can use the data in that alarm report to calculate the azimuth information corresponding to the radiation source target.

[0058] For example, refer to Figure 4 As shown, when performing direction-finding fusion processing on the alarm locations of the same type of target, the specific steps may include: Step 1: First, the fusion processing device determines the number of reports of the same type of target received. If there is only one target report, proceed directly to step 7; if there are more than one target report, proceed to step 2.

[0059] Step 2: Find the two reports with the largest and second largest target ranges, and eliminate the remaining reports with smaller target ranges.

[0060] Step 3: Determine whether the location indices of the distributed alarm devices reporting the largest and second-largest amplitudes are adjacent based on the interrupt number. If the location indices of the largest and second-largest amplitude alarm devices are not adjacent, proceed to Step 4. Alternatively, if the module location indices are adjacent, proceed to Step 5.

[0061] Step 4: Retain the alarm device target report with the largest amplitude, remove the target report with the second largest amplitude, and proceed to Step 7.

[0062] Step 5: Determine whether the internal antenna channels of the devices with the largest and second largest amplitude alarms are adjacent (by checking the azimuth angles reported by the two targets). If they are not adjacent, proceed to Step 4. If the internal antenna channels of the devices with the largest and second largest amplitude alarms are adjacent, proceed to Step 6.

[0063] Step 6: Calculate the amplitude ratio angle measurement value based on the amplitude values ​​of the largest and second largest antenna channels. After calculation, proceed to step 7.

[0064] Step 7: Distinguish the location of the distributed alarm devices according to the interruption number, and add the angle measurement value to the base angle of the distributed alarm device where the target amplitude report is located (the base angle of each distributed alarm device is different) to obtain the final absolute angle value.

[0065] Specifically, the fusion processing equipment performs classification and direction-finding fusion preprocessing based on the GPS time of the received alarm reports and the repetition frequency and pulse width of the target reports. The arrival time, target repetition frequency, and pulse width of each alarm report are cyclically compared; if they are less than a certain threshold, they are considered to belong to the same radiation source, and target reports from the same radiation source are grouped into one category. Direction-finding fusion processing is then performed on the azimuths of alarm targets grouped into the same category. The direction-finding fusion processing flow includes classification and direction-finding fusion preprocessing and main direction-finding fusion processing for targets of the same category; the main fusion processing is performed after the fusion preprocessing.

[0066] In one exemplary embodiment, reference Figure 5As shown, four distributed alarm devices are used as an example for illustration. Each distributed alarm contains six antennas. Each antenna effectively covers 15 degrees, and a single distributed alarm effectively covers 90 degrees in azimuth. The four distributed alarms complete 360-degree azimuth coverage. The base angle of distributed alarm 1 is 0 degrees, the base angle of distributed alarm 2 is 90 degrees, the base angle of distributed alarm 3 is 180 degrees, and the base angle of distributed alarm 4 is 270 degrees.

[0067] The four distributed alarm devices report their data to the fusion processing device. Each distributed alarm reports a target report once at regular intervals, and multiple targets can be reported at once.

[0068] The fusion processing device sends GPS time to the four alarm devices for synchronization. It assigns an interrupt number to each of the four alarm devices, using this interrupt number to index their locations. The fusion processing device preprocesses the received target reports from the distributed alarm devices, adds location indexes, and iteratively compares the GPS time, target repetition frequency, and pulse width of each target report. If the values ​​are less than a certain threshold, the reports are considered to originate from the same radiation source. Direction-finding fusion is then performed on alarm targets classified into the same category.

[0069] Compare the magnitudes of several distributed alarm targets of the same type, and select the target with the largest and second largest magnitudes to report.

[0070] If the location index of the largest amplitude report and the location index of the second largest amplitude report are not adjacent, it means that the angles measured by the two distributed alarms are not adjacent; therefore, the angle reported is the maximum amplitude reported angle plus the base angle of the current distributed alarm. For example, the maximum reported location is 1, and the second largest reported location is 3. Alternatively, if the location indices are adjacent, it is necessary to further determine whether the antenna channels are adjacent by using the angle values ​​of the maximum and second largest reports. For example, the maximum reported location is 1, and the second largest reported location is 2.

[0071] The angle value range for a single distributed alarm report is 0-90 degrees. When the maximum amplitude reported angle value range is 0-15 degrees, the next largest amplitude reported angle range is determined. If the next largest amplitude reported angle is within the range of 0-75 degrees, it indicates that although the two distributed alarms are geographically adjacent, their measured angles are not adjacent, meaning their antenna channels are not adjacent. Figure 5 As shown, Figure 5The distribution relationship of angle measurements for four distributed alarms is described. After removing the second-largest amplitude reported angle information, the reported angle is the maximum amplitude reported angle plus the base angle of the current distributed alarm (for example, if distributed alarm 2 measures 10 degrees, distributed alarm 1 measures 50 degrees, and the amplitude of distributed alarm 2 is greater than that of distributed alarm 1, then the final reported angle is 10 degrees plus the base angle of distributed alarm 2, 90 degrees, resulting in a final fused angle of 100 degrees). When the second-largest amplitude reported angle value is within the range of 75 to 90 degrees, and the difference between the location number of the second-largest amplitude distributed alarm and the location number of the largest amplitude distributed alarm is 3 or -1, it indicates that the two alarm devices are adjacent in location and their antenna channels are also adjacent. In this case, amplitude comparison angle measurement is used to calculate the overlap area of ​​the two distributed alarms. The calculated angle is added to the angle of the reported position with the largest amplitude to obtain the final fused angle (for example, the angle measured by distributed alarm 2 is 10 degrees, the angle measured by distributed alarm 1 is 80 degrees, and the amplitude measured by distributed alarm 2 is greater than the amplitude measured by distributed alarm 1, which means that the antenna channels of the two distributed alarm positions are adjacent. The position deflection angle is calculated by the amplitude comparison angle measurement algorithm, and then the base angle of distributed alarm 2 is added to obtain the final fused angle).

[0072] When the maximum reported angle value range is 75-90 degrees, the next maximum reported angle range is determined. If the next maximum reported angle is within the range of 15-90 degrees, it indicates that although the two distributed alarms are located adjacently, their measured angles are not adjacent, meaning their antenna channels are not adjacent. Figure 5 As shown, after removing the second largest amplitude reported angle information, the reported angle is the maximum amplitude reported angle plus the base angle of the current distributed alarm (for example, if the angle measured by distributed alarm 2 is 80 degrees, the angle measured by distributed alarm 1 is 50 degrees, and the amplitude measured by distributed alarm 2 is greater than that measured by distributed alarm 1, then the final reported angle is 80 degrees plus the base angle of distributed alarm 2, 90 degrees, resulting in a final fused angle of 170 degrees). When the second largest amplitude reported angle value is within the range of 0 to 15 degrees, and the difference between the location number of the second largest amplitude distributed alarm and the location number of the largest amplitude distributed alarm is -3 or 1, it indicates that the two alarm devices are adjacent in location and their antenna channels are also adjacent. In this case, the amplitude comparison angle measurement method is used to calculate the overlap area of ​​the two distributed alarms. The calculated angle is added to the angle of the reported position with the largest amplitude to obtain the final fused angle (for example, the angle measured by distributed alarm 2 is 80 degrees, the angle measured by distributed alarm 3 is 10 degrees, and the amplitude measured by distributed alarm 2 is greater than the amplitude measured by distributed alarm 3, which means that the antenna channels of the two distributed alarm positions are adjacent. The position deflection angle is calculated by the amplitude comparison angle measurement algorithm, and then the base angle of distributed alarm 2 is added to obtain the final fused angle).

[0073] The method proposed in this invention completes omnidirectional angle measurement in two steps: First, each distributed alarm device measures its own azimuth angle; second, the angles measured by different distributed alarm devices are fused. Each distributed alarm device measures its angle independently, and multiple distributed alarm devices report their processed information to the fusion processing device. Alarm devices typically use amplitude-comparison angle measurement for azimuth angle measurement. If there is target information, each distributed alarm device reports its measured angle value and the maximum antenna amplitude value within the distributed alarm device.

[0074] This method has the following advantages: 1. The angle measurement algorithm is divided into two steps, which reduces the pressure of distributed alarms and also reduces the pressure of fusion processing.

[0075] 2. Each distributed alarm device performs azimuth angle measurement normally. When there is target information, the distributed alarm device only needs to report the angle measured in one module and the maximum antenna amplitude value, without reporting all antenna amplitude values.

[0076] It should be noted that the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Furthermore, it is readily understood that these processes may, for example, be executed synchronously or asynchronously in multiple modules.

[0077] It should be noted that although several modules or units of the device for performing actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0078] This example implementation also provides an electronic device suitable for implementing embodiments of the present invention.

[0079] It should be noted that, Figure 6 The electronic device 1000 shown is merely an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present invention.

[0080] like Figure 6As shown, the electronic device 1000 includes a Central Processing Unit (CPU) 1001, which can perform various appropriate actions and processes based on programs stored in Read-Only Memory (ROM) 1002 or programs loaded from storage section 1008 into Random Access Memory (RAM) 1003. The RAM 1003 also stores various programs and data required for system operation. The CPU 1001, ROM 1002, and RAM 1003 are interconnected via a bus 1004. An Input / Output (I / O) interface 1005 is also connected to the bus 1004. Furthermore, the electronic device 1000 also includes an FPGA device and a System-on-a-Chip (SoC) device.

[0081] The following components are connected to I / O interface 1005: an input section 1006 including a keyboard, mouse, etc.; an output section 1007 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 1008 including a hard disk, etc.; and a communication section 1009 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 1009 performs communication processing via a network such as the Internet. A drive 1010 is also connected to I / O interface 1005 as needed. Removable media 1011, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., are installed on drive 1010 as needed so that computer programs read from them can be installed into storage section 1008 as needed.

[0082] For example, the electronic device could be the aforementioned fusion processing device.

[0083] In particular, according to embodiments of the present invention, the processes described below with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a storage medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication component, and / or installed from a removable medium. When the computer program is executed by a central processing unit (CPU), it performs various functions defined in the system of this application.

[0084] It should be noted that the storage medium shown in the embodiments of the present invention can be a computer-readable signal medium or a computer-readable storage medium, or any combination thereof. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In the present invention, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In the present invention, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, wherein computer-readable program code is carried. Such transmitted data signals can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any storage medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The program code contained on the storage medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0085] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present invention. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0086] The units described in the embodiments of the present invention can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0087] It should be noted that, as another aspect, this application also provides a storage medium, which may be included in an electronic device or may exist independently without being assembled into the electronic device. The aforementioned storage medium carries one or more programs, which, when executed by an electronic device, cause the electronic device to perform the methods described in the following embodiments. For example, the electronic device may perform... Figure 1 The steps of the method shown.

[0088] In one embodiment, this application provides a computer program product including a computer program that, when executed by a processor, implements the steps in the above-described method embodiments.

[0089] Furthermore, the above figures are merely illustrative of the processes included in the method according to exemplary embodiments of the present invention, and are not intended to be limiting. It is readily understood that the processes shown in the above figures do not indicate or limit the temporal order of these processes. Additionally, it is readily understood that these processes may be executed synchronously or asynchronously, for example, in multiple modules.

[0090] Other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention herein. This application is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

[0091] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is defined only by the appended claims.

Claims

1. A method for angle fusion processing of a distributed radiation source alarm device, characterized in that, The method includes: Obtain the interrupt number and alarm report sent by each distributed alarm device; wherein, the interrupt number is used to represent the location index corresponding to the distributed alarm device; the alarm report includes: arrival time information based on GPS time, and radiation source detection data; Alarm reports are filtered based on arrival time information and radiation source detection data to obtain multiple alarm reports belonging to the same radiation source, which are then used for direction finding fusion processing. Based on the signal amplitude parameters of the radiation source in the alarm report, multiple alarm reports belonging to the same radiation source are filtered to obtain the first alarm report and the second alarm report; The location relationships of the corresponding distributed alarm devices are determined based on the first alarm report and the second alarm target report. Based on the location relationships, the alarm locations of the radiation source are fused by direction finding to determine the target orientation information of the radiation source.

2. The method according to claim 1, characterized in that, The method further includes: Within a preset processing cycle, when the fusion processing device obtains an interrupt number and an alarm report sent by a distributed alarm device, it determines the location index corresponding to the distributed alarm device based on the interrupt number. Based on the location index and alarm report corresponding to the distributed alarm device, the target orientation information of the radiation source is determined.

3. The method according to claim 1, characterized in that, Alarm reports are filtered based on arrival time information and radiation source detection data to obtain multiple alarm target reports belonging to the same radiation source, which are then used for direction-finding fusion processing, including: Based on the arrival time information, multiple alarm reports are compared in a loop, and alarm reports with the same arrival time are selected as reports to be analyzed. The radiation source detection data in each report to be analyzed are compared cyclically. Alarm reports with radiation source detection data differences less than a preset threshold are selected as alarm reports belonging to the same radiation source and used for direction finding fusion processing.

4. The method according to claim 1, characterized in that, Based on the signal amplitude parameters of the radiation source in the alarm reports, multiple alarm reports belonging to the same radiation source are filtered to obtain the first alarm report and the second alarm report, including: Based on the signal amplitude parameters in the radiation source detection data, the alarm reports are sorted from smallest to largest. The first alarm report and the second alarm report are determined according to the sorting results, and the other alarm reports are removed.

5. The method according to claim 1, characterized in that, Based on the first alarm report and the second alarm target report, the location relationship of the corresponding distributed alarm devices is determined. Then, based on this location relationship, direction-finding fusion processing is performed on the alarm location of the radiation source to determine its azimuth information, including: Identify the location relationship between the corresponding first distributed alarm device and second distributed alarm device based on the interrupt numbers of the first alarm report and the second alarm report; When it is determined that the first distributed alarm device and the second distributed alarm device are adjacent, the positional relationship between the first antenna channel of the first distributed alarm device and the second antenna channel of the second distributed alarm device is determined. When it is determined that the first antenna channel and the second antenna channel are adjacent, the amplitude comparison angle measurement operation is performed based on the first amplitude parameter corresponding to the first alarm report and the second amplitude parameter corresponding to the second alarm report to determine the angle measurement value; By combining the measured angle value with the base angle corresponding to the first distributed alarm device, the absolute angle information of the radiation source is determined.

6. The method according to claim 5, characterized in that, The method further includes: When it is determined that the first distributed alarm device and the second distributed alarm device are not adjacent, the absolute angle information of the radiation source is determined by combining the azimuth parameters in the first alarm report and the base angle of the first distributed alarm device.

7. The method according to claim 5, characterized in that, The method further includes: When it is determined that the first antenna channel and the second antenna channel are not adjacent, the absolute angle information of the radiation source is determined by combining the azimuth parameters in the first alarm report and the base angle of the first distributed alarm device.

8. The method according to any one of claims 1-7, characterized in that, Radiation source detection data includes any one or any combination of the following parameter types: frequency, repetition rate, pulse width, signal amplitude, and signal azimuth.

9. The method according to claim 1, characterized in that, The method further includes: Establish communication links between the fusion processing device and each distributed alarm device; Based on the number of antennas and the antenna coverage angle of the distributed alarm devices, the detection range is configured for each distributed alarm device to achieve omnidirectional coverage using multiple distributed alarm devices.

10. The method according to claim 1, characterized in that, The method further includes: The fusion processing device synchronously sends GPS time information to each distributed alarm device so that each distributed alarm device can synchronize its time based on the currently received GPS time information; Configure an interrupt number for each distributed alarm device, and configure a location index for each distributed alarm device based on the interrupt number.

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