A Beidou-based autonomous and controllable anti-jamming time synchronization method and device

Abstract

The present invention provides an autonomous and controllable anti-jamming time synchronization method and device based on Beidou, belonging to the field of satellite technology, specifically including: obtaining distribution data of different time synchronization modes recognized as time synchronization deviation time periods in different time periods, and using the distribution data of the recognized time synchronization deviation time periods to determine the time synchronization processing time periods and time synchronization processing priorities in the time periods, using the time synchronization processing priorities to determine the priority time synchronization processing time periods, obtaining the time synchronization processing results of different time synchronization modes in the priority time synchronization processing time periods, and combining the distribution data of the time synchronization deviation time periods of different time synchronization modes in the priority time synchronization processing time periods, when it is determined that deviation correction processing of the target device needs to be performed, determining the adjustment processing strategy of the priority time synchronization processing time periods according to the deviation correction processing data and time synchronization processing priorities in the priority time synchronization processing time periods, thereby improving the accuracy of time synchronization processing.

Description

Technical Field

[0001] The present invention belongs to the field of satellite technology, and particularly relates to an autonomous and controllable anti-interference time synchronization method and device based on Beidou. Background Art

[0002] In order to implement anti-interference processing during the time synchronization process of satellites, specifically in the invention patent application CN202411455266.5 "A Beidou High-Precision Intelligent Navigation Method and Its System", real-time correction is performed by recording the timestamps of the reference station and the mobile terminal and calculating the time error, and the error change trend within a fixed time period is analyzed to determine the correction strategy. However, the following technical problems exist in the above technical solutions:

[0003] At present, time synchronization devices obtain time, position, and frequency through satellite navigation systems. However, satellite navigation signals are vulnerable to intentional and unintentional interference, resulting in incorrect time and position. For time synchronization devices, their security directly affects the information security and system security of their application fields, which leads to the possibility that a single time synchronization mode may not meet the reliability requirements of time synchronization processing.

[0004] In view of the above technical problems, specifically, the present application provides an autonomous and controllable anti-interference time synchronization method and device based on Beidou. Summary of the Invention

[0005] To achieve the object of the present invention, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present application provides an autonomous and controllable anti-interference time synchronization method based on Beidou, specifically including:

[0007] S1 Based on the deviation situations of the historical time synchronization processing results in different time periods for different time synchronization modes in the Beidou time synchronization device, determine the distribution data of the time synchronization deviation time periods of different time synchronization modes on different dates;

[0008] S2 Based on the distribution data of the time synchronization deviation time periods of different time synchronization modes on different dates, when it is determined that there is no time synchronization mode that meets the requirements of time synchronization processing reliability, proceed to the next step;

[0009] S3 Obtain the distribution data of different time synchronization modes being identified as time synchronization deviation time periods in different time periods, and use the distribution data of the identified time synchronization deviation time periods to determine the time synchronization processing time periods and time synchronization processing priorities in the time periods, and use the time synchronization processing priorities to determine the priority time synchronization processing time periods;

[0010] S4 obtains the time synchronization processing results of different time synchronization modes during the priority time synchronization processing period, and combines the distribution data of the time synchronization deviation periods of different time synchronization modes during the priority time synchronization processing period. When it is determined that the deviation correction processing of the target device needs to be performed, according to the deviation correction processing data and the time synchronization processing priority during the priority time synchronization processing period, the adjustment processing strategy for the priority time synchronization processing period is determined.

[0011] The beneficial effects of the present invention are as follows:

[0012] During the priority time synchronization processing period, the time synchronization processing results of different time synchronization modes and the distribution data of the time synchronization deviation periods of different time synchronization modes during the priority time synchronization processing period are obtained to determine whether the deviation correction processing of the target device needs to be performed, thereby realizing the deviation correction processing of the target device based on multiple time synchronization modes, avoiding the technical problem of insufficient reliability of time synchronization processing caused by using a single time synchronization mode, and further combining the distribution data of the time synchronization deviation periods of different time synchronization modes during the priority time synchronization processing period, fully considering the data credibility of different time synchronization modes, and ensuring the reliability of the time synchronization processing results.

[0013] According to the deviation correction processing data and the time synchronization processing priority during the priority time synchronization processing period, the adjustment processing strategy for the priority time synchronization processing period is determined, avoiding the technical problem of unreliable time synchronization processing results caused by deviations in time synchronization data between different time synchronization modes during the priority time synchronization processing period, and automatically adjusting the priority time synchronization processing period, improving the reliability of the time synchronization processing of the target device.

[0014] A further technical solution is that the time synchronization modes include satellite navigation positioning systems, long-wave modes, and short-wave modes.

[0015] A further technical solution is that the time synchronization deviation period is a period when the time synchronization processing result deviates from the true time synchronization result.

[0016] A further technical solution is that determining whether the time synchronization processing reliability of the time synchronization mode meets the requirements specifically includes:

[0017] Based on the distribution data of the time synchronization deviation periods of the time synchronization mode on different dates, determine the number of times a different period is recognized as a time synchronization deviation period, and use it as the time synchronization deviation number;

[0018] Based on the ratio of the time synchronization deviation number to the number of time synchronization processing times in the period, determine the deviation coefficient of different periods;

[0019] According to the deviation coefficients of different periods, determine whether the time synchronization processing reliability of the time synchronization mode meets the requirements.

[0020] Further technical documentation lies in that when there is a period during which the deviation coefficient is less than the preset deviation coefficient, it is determined that the reliability of the time synchronization process of the time synchronization mode meets the requirements.

[0021] A further technical solution lies in determining whether the reliability of the time synchronization process of the time synchronization mode meets the requirements, specifically including:

[0022] Based on the distribution data of the time synchronization deviation periods of the time synchronization mode on different dates, determine the number of times different periods are identified as time synchronization deviation periods, and use it as the time synchronization deviation times;

[0023] Based on the time synchronization deviation times in different periods, determine whether the reliability of the time synchronization process of the time synchronization mode meets the requirements.

[0024] A further technical solution lies in that when there is a period during which the time synchronization deviation times are within the preset deviation times range, it is determined that the reliability of the time synchronization process of the time synchronization mode meets the requirements.

[0025] A further technical solution lies in that the method for determining the adjustment processing strategy of the priority time synchronization processing period is:

[0026] Based on the on-demand processing results of different time synchronization modes in the priority time synchronization processing period, determine the number of times there is a deviation between the time synchronization processing results of different time synchronization modes in the priority time synchronization processing period, and use it as the data deviation times;

[0027] Use the number of time synchronization processing times in the priority time synchronization processing period as the matching time synchronization processing times;

[0028] Use the proportion of the data deviation times in the matching time synchronization processing times as the time synchronization deviation factor, and use the time synchronization deviation factor and the time synchronization processing priority to determine the adjustment processing strategy of the priority time synchronization processing period.

[0029] A further technical solution lies in that using the time synchronization deviation factor and the time synchronization processing priority to determine the adjustment processing strategy of the priority time synchronization processing period, specifically including:

[0030] When the time synchronization deviation factor is less than the preset deviation factor threshold, it is determined that no adjustment processing of the priority time synchronization processing period is required;

[0031] When the time synchronization deviation factor is not less than the preset deviation factor threshold, perform the adjustment processing of the priority time synchronization processing period, and switch the priority time synchronization processing period to the time synchronization processing period with the highest time synchronization processing priority except for the priority time synchronization processing period.

[0032] In a second aspect, the present invention provides a computer device, comprising: a memory and a processor connected communicatively, and a computer program stored on the memory and capable of running on the processor, wherein when the processor runs the computer program, it executes the above-mentioned Beidou-based autonomous and controllable anti-interference time synchronization method.

[0033] Other features and advantages will be set forth in the following description, and in part will be obvious from the description, or may be learned by practice of the present invention. The objectives and other advantages of the present invention are realized and attained by the structure particularly pointed out in the specification and the drawings.

[0034] To make the above objectives, features and advantages of the present invention more comprehensible, the following specific preferred embodiments are given, in conjunction with the accompanying drawings, and are described in detail as follows. Description of the Drawings

[0035] By referring to the drawings and describing its exemplary embodiments in detail, the above and other features and advantages of the present invention will become more apparent.

[0036] Figure 1 is a flowchart of a Beidou-based autonomous and controllable anti-interference time synchronization method;

[0037] Figure 2 is a flowchart for judging whether the reliability of time synchronization processing in a time synchronization mode meets the requirements;

[0038] Figure 3 is a flowchart of a method for determining a time synchronization processing period in a time period;

[0039] Figure 4 is a flowchart for determining that deviation correction processing of a target device needs to be performed. Detailed Embodiments

[0040] Now, the exemplary embodiments will be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0041] The terms "a", "an", "the", and "said" are used to denote the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that in addition to the listed elements / components / etc., there may be additional elements / components / etc.

[0042] Embodiment 1

[0043] To solve the above problems, according to one aspect of the present invention, as Figure 1 shown, according to one aspect of the present invention, a Beidou-based autonomous and controllable anti-interference time synchronization method is provided, specifically including:

[0044] S1 Based on the different time synchronization modes in the Beidou time synchronization device and the deviation situation of the historical time synchronization processing results in different time periods, determine the distribution data of the time synchronization deviation periods of the time synchronization modes on different dates;

[0045] Further, the time synchronization modes include satellite navigation positioning systems, long-wave modes, and short-wave modes.

[0046] Specifically, the time synchronization deviation period is the period when there is a deviation between the time synchronization processing result and the true time synchronization result.

[0047] S2 Based on the distribution data of the time synchronization deviation periods of different time synchronization modes on different dates, when it is determined that there is no time synchronization mode whose time synchronization processing reliability meets the requirements, proceed to the next step;

[0048] It should be noted that, as Figure 2 shown, to determine whether the time synchronization processing reliability of the time synchronization mode meets the requirements, specifically includes:

[0049] Based on the distribution data of the time synchronization deviation periods of the time synchronization mode on different dates, determine the number of times each time period is recognized as a time synchronization deviation period, and use it as the time synchronization deviation times;

[0050] Based on the ratio of the time synchronization deviation times to the number of time synchronization processing times in the time period, determine the deviation coefficient of different time periods;

[0051] Determine whether the time synchronization processing reliability of the time synchronization mode meets the requirements according to the deviation coefficients of different time periods.

[0052] Further, when there is a time period with a deviation coefficient less than the preset deviation coefficient, it is determined that the time synchronization processing reliability of the time synchronization mode meets the requirements.

[0053] Optionally, to determine whether the time synchronization processing reliability of the time synchronization mode meets the requirements, specifically includes:

[0054] Based on the distribution data of the time synchronization deviation periods of the time synchronization mode on different dates, determine the number of times each time period is recognized as a time synchronization deviation period, and use it as the time synchronization deviation times;

[0055] Determine whether the time synchronization processing reliability of the time synchronization mode meets the requirements based on the time synchronization deviation times in different time periods.

[0056] It should be noted that when there is a time period in which the number of time alignment deviations is within the preset deviation number range, it is determined that the time alignment processing reliability of the time alignment mode meets the requirements.

[0057] In another possible embodiment, determining whether the time alignment processing reliability of the time alignment mode meets the requirements specifically includes:

[0058] S11 Based on the distribution data of the time alignment deviation time periods of the time alignment mode on different dates, determine the dates with time alignment deviation time periods and use them as the time alignment deviation dates. According to the ratio of the number of time alignment deviations to the number of time alignment processing times for different time alignment deviation dates and the proportion of the number of time alignment deviation dates, determine the basic deviation coefficient of the time alignment mode;

[0059] S12 Based on the distribution data of the time alignment deviation time periods of the time alignment mode on different dates, determine the number of times different time periods are recognized as time alignment deviation time periods and use them as the number of time alignment deviations. Combine the ratio of the number of time alignment deviations to the number of time alignment processing times in the time period to determine the time alignment deviation coefficients for different time periods;

[0060] S13 According to the product of the time alignment deviation coefficients and the basic deviation coefficient for different time periods, determine the comprehensive deviation coefficients for different time periods, and use the comprehensive deviation coefficients for different time periods to determine whether the time alignment processing reliability of the time alignment mode meets the requirements.

[0061] Furthermore, when there is a time period in which the comprehensive deviation coefficient meets the requirements, it is determined that the time alignment processing reliability of the time alignment mode meets the requirements.

[0062] It should be noted that when there is a time alignment mode with time alignment processing reliability meeting the requirements, the time alignment mode with the maximum time alignment processing reliability is used for time alignment processing of the target device.

[0063] Optionally, the following content is included in the above step S11:

[0064] S111 Based on the distribution data of the time alignment deviation time periods of the time alignment mode on different dates, determine the total number of time alignment deviation time periods of the time alignment mode. When the total number of time alignment deviation time periods of the time alignment mode is greater than the preset deviation time period number, it is determined that the time alignment processing reliability of the time alignment mode does not meet the requirements. When the total number of time alignment deviation time periods of the time alignment mode is not greater than the preset deviation time period number, proceed to step S112;

[0065] S112 Based on the distribution data of the time alignment deviation time periods of the time alignment mode on different dates, determine the dates with time alignment deviation time periods and use them as the time alignment deviation dates. When the proportion of the number of time alignment deviation dates does not meet the requirements, proceed to step S113. When the proportion of the number of time alignment deviation dates meets the requirements, proceed to step S114;

[0066] S113 When the total number of time alignment deviation periods in the time alignment mode is within the preset deviation period range, it is determined that the time alignment processing reliability of the time alignment mode does not meet the requirements. When the total number of time alignment deviation periods in the time alignment mode is not within the preset deviation period range, it proceeds to step S114;

[0067] S114 Determine the basic deviation coefficient of the time alignment mode according to the ratio of the number of time alignment deviations to the number of time alignment processes on different time alignment deviation dates and the proportion of the number of time alignment deviation dates. When the basic deviation coefficient of the time alignment mode does not meet the requirements, it is determined that the time alignment processing reliability of the time alignment mode does not meet the requirements. When the basic deviation coefficient of the time alignment mode meets the requirements, it proceeds to step S12.

[0068] Further, the basic deviation coefficient is determined according to the product of the maximum value of the ratio of the number of time alignment deviations to the number of time alignment processes on different time alignment deviation dates and the proportion of the number of time alignment deviation dates.

[0069] Optionally, the following content is included in the above step S12:

[0070] S121 Use the distribution data of the time alignment deviation periods of the time alignment mode on different dates to determine the number of times each period is recognized as a time alignment deviation period, and use it as the number of time alignment deviations. When there is no period with the number of time alignment deviations less than the preset deviation number, it is determined that the time alignment processing reliability of the time alignment mode does not meet the requirements. When there is a period with the number of time alignment deviations not less than the preset deviation number, it proceeds to step S122;

[0071] S122 Use the number of times each period is recognized as a time alignment deviation period, and use it as the number of time alignment deviations, and combine the ratio of the number of time alignment deviations to the number of time alignment processes in the period to determine the time alignment deviation coefficient of each period. When there is a period with the time alignment deviation coefficient meeting the requirements, it proceeds to step S123. When there is no period with the time alignment deviation coefficient meeting the requirements, it is determined that the time alignment processing reliability of the time alignment mode does not meet the requirements;

[0072] S123 Determine the deviation coefficient threshold of the period based on the basic deviation coefficient of the time alignment mode. When the number of periods with the time alignment deviation coefficient greater than the deviation coefficient threshold is greater than the set value of the number of periods, it is determined that the time alignment processing reliability of the time alignment mode does not meet the requirements. When the number of periods with the time alignment deviation coefficient greater than the deviation coefficient threshold is not greater than the set value of the number of periods, it proceeds to step S13.

[0073] S3 obtains the distribution data of different time synchronization modes recognized as time synchronization deviation periods in different time periods, and uses the distribution data of the recognized time synchronization deviation periods to determine the time synchronization processing period and the time synchronization processing priority in the time period, and determines the priority time synchronization processing period by using the time synchronization processing priority;

[0074] It should be noted that, as Figure 3 shown, the method for determining the time synchronization processing period in the time period is:

[0075] Based on the distribution data of the time synchronization deviation periods of different time synchronization modes in the time period, determine the number of time synchronization deviation periods of different time synchronization modes in the time period;

[0076] Based on the number of time synchronization deviation periods of different time synchronization modes in the time period, determine the total number of time synchronization deviation periods;

[0077] According to the total number of time synchronization deviation periods in the time period, determine whether the time period is a time synchronization processing period.

[0078] Further, when the total number of corresponding deviation periods in the time period is less than the preset number threshold, it is determined that the time period is a time synchronization processing period.

[0079] In addition, it should be noted that the time synchronization processing priority of the time synchronization processing period is determined from small to large according to the total number of corresponding deviation periods of the time synchronization processing period.

[0080] Optionally, determining the priority time synchronization processing period by using the time synchronization processing priority specifically includes:

[0081] The priority time synchronization processing period is the time synchronization processing period with the largest time synchronization processing priority.

[0082] Optionally, the method for determining the time synchronization processing period in the time period is:

[0083] Based on the distribution data of the time synchronization deviation periods of different time synchronization modes in the time period, determine the number of time synchronization deviation periods of different time synchronization modes in the time period. When there is a time synchronization mode with the number of time synchronization deviation periods not meeting the requirements, it is determined that the time period does not belong to the time synchronization processing period;

[0084] When there is no time synchronization mode with the number of time synchronization deviation periods not meeting the requirements:

[0085] When the number of time synchronization deviation periods of different time synchronization modes in the time period is within the preset deviation number range: it is determined that the time period does not belong to the time synchronization processing period;

[0086] When the number of time alignment deviation periods in the time period is not within the preset deviation number range for the time alignment mode:

[0087] Based on the number of time alignment deviation periods in the time period for different time alignment modes, determine the total number of time alignment deviation periods. When the total number of time alignment deviation periods in the time period does not meet the requirements, it is determined that the time period does not belong to the time alignment processing period;

[0088] When the total number of time alignment deviation periods in the time period meets the requirements:

[0089] When the total number of time alignment deviation periods in the time period is less than the preset number setting value, it is determined that the time period belongs to the time alignment processing period;

[0090] When the total number of time alignment deviation periods in the time period is not less than the preset number setting value:

[0091] Based on the number of time alignment deviation periods in the time period for different time alignment modes and combined with the number of time alignment processing times in the time period for different time alignment modes, determine the time alignment processing deviation coefficient for different time alignment modes. When there is a time alignment mode in the time period whose time alignment processing deviation coefficient does not meet the requirements, it is determined that the time period does not belong to the time alignment processing period;

[0092] When there is no time alignment mode in the time period whose time alignment processing deviation coefficient does not meet the requirements:

[0093] Based on the time alignment processing deviation coefficients for different time alignment modes in the time period, determine the time alignment processing credibility coefficient for the time period, and use the time alignment processing credibility coefficient to determine whether the time period is a time alignment processing period.

[0094] S4 Obtain the time alignment processing results for different time alignment modes in the preferred time alignment processing period, and combine the distribution data of the time alignment deviation periods in the preferred time alignment processing period for different time alignment modes. When it is determined that corrective processing of the target device is required, determine the adjustment processing strategy for the preferred time alignment processing period according to the corrective processing data and the time alignment processing priority in the preferred time alignment processing period.

[0095] Further, as Figure 4 shown, determining that corrective processing of the target device is required specifically includes:

[0096] Based on the proportion of the number of time alignment deviation periods in the preferred time alignment processing period for different time alignment modes, determine the credibility weight coefficient for different time alignment modes;

[0097] Based on the time synchronization processing results of different time synchronization modes in the priority time synchronization processing period, determine the deviation situation between the time synchronization processing results of different time synchronization modes, and use the deviation situation to determine the consistent time synchronization mode and the deviation time synchronization mode;

[0098] According to the difference between the sum of the credible weight coefficients of different consistent time synchronization modes and the credible weight coefficient of the deviation time synchronization mode, determine the time synchronization credible coefficient, and use the time synchronization credible coefficient to determine whether corrective processing of the target device is required.

[0099] It should be noted that when the time synchronization credible coefficient is greater than the preset credible coefficient, the time synchronization processing result of the consistent time synchronization mode is used for corrective processing of the target device.

[0100] In one possible embodiment, the method for determining the adjustment processing strategy of the priority time synchronization processing period is as follows:

[0101] Based on the on-demand processing results of different time synchronization modes in the priority time synchronization processing period, determine the number of times of deviation between the time synchronization processing results of different time synchronization modes in the priority time synchronization processing period, and use it as the data deviation number;

[0102] Use the number of time synchronization processing times in the priority time synchronization processing period as the matching time synchronization processing times;

[0103] Use the proportion of the data deviation number in the matching time synchronization processing times as the time synchronization deviation factor, and use the time synchronization deviation factor and the time synchronization processing priority to determine the adjustment processing strategy of the priority time synchronization processing period.

[0104] Furthermore, using the time synchronization deviation factor and the time synchronization processing priority to determine the adjustment processing strategy of the priority time synchronization processing period specifically includes:

[0105] When the time synchronization deviation factor is less than the preset deviation factor threshold, it is determined that no adjustment processing of the priority time synchronization processing period is required;

[0106] When the time synchronization deviation factor is not less than the preset deviation factor threshold, adjustment processing of the priority time synchronization processing period is performed, and the priority time synchronization processing period is switched to the time synchronization processing period with the highest time synchronization processing priority except for the priority time synchronization processing period.

[0107] In another possible embodiment, the method for determining the adjustment processing strategy of the priority time synchronization processing period is as follows:

[0108] Determine the number of times of deviation between the timing processing results of different timing modes in the priority timing processing period, and if it is determined that there is no deviation between the timing processing results of different timing modes in the priority timing processing period, then it is determined that no adjustment processing for the priority timing processing period is required;

[0109] When there is a number of times of deviation between the timing processing results of different timing modes in the priority timing processing period:

[0110] Take the number of times of deviation between the timing processing results of different timing modes as the data deviation times. When the data deviation times do not meet the requirements, then it is determined to switch the priority timing processing period to the timing processing period with the highest timing processing priority except the priority timing processing period;

[0111] When the data deviation times meet the requirements:

[0112] Take the number of timing processing times in the priority timing processing period as the matching timing processing times, and take the proportion of the data deviation times in the matching timing processing times as the timing deviation factor. When the timing deviation factor does not meet the requirements, then it is determined to switch the priority timing processing period to the timing processing period with the highest timing processing priority except the priority timing processing period;

[0113] When the timing deviation factor meets the requirements:

[0114] Determine the data deviation coefficient of different data deviation times based on the deviation amount of the timing processing results between different timing modes in different data deviation times. When there is a data deviation time with a data deviation coefficient that does not meet the requirements:

[0115] When the number of data deviation times with a data deviation coefficient that does not meet the requirements is greater than the preset deviation times threshold, then it is determined to switch the priority timing processing period to the timing processing period with the highest timing processing priority except the priority timing processing period;

[0116] When there is no data deviation time with a data deviation coefficient that does not meet the requirements or the number of data deviation times with a data deviation coefficient that does not meet the requirements is not greater than the preset deviation times threshold:

[0117] Determine the timing processing reliability coefficient of the priority timing processing period based on the product of the average value of the data deviation coefficients of different data deviation times and the timing deviation factor, and use the timing processing reliability coefficient and the timing processing priority to determine the adjustment processing strategy of the priority timing processing period.

[0118] Furthermore, using the timing processing reliability coefficient and the timing processing priority to determine the adjustment processing strategy of the priority timing processing period specifically includes:

[0119] When the reliability coefficient of the time alignment process meets the requirements, it is determined that there is no need to perform the adjustment process on the priority time alignment process period;

[0120] When the reliability coefficient of the time alignment process does not meet the requirements, the adjustment process on the priority time alignment process period is performed, and the priority time alignment process period is switched to the time alignment process period with the highest time alignment process priority except for the priority time alignment process period.

[0121] Embodiment 2

[0122] In a second aspect, the present invention provides a computer device, including: a memory and a processor connected by communication, and a computer program stored on the memory and capable of running on the processor. When the processor runs the computer program, it executes the above-mentioned Beidou-based autonomous and controllable anti-jamming time alignment method.

[0123] Each embodiment in this specification is described in a progressive manner. The same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the embodiments of the device, equipment, and non-volatile computer storage medium, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0124] The specific embodiments of this specification are described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve the desired results. Additionally, the processes depicted in the figures do not necessarily require the specific order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0125] The above is only one or more embodiments of this specification and is not used to limit this specification. For those skilled in the art, one or more embodiments of this specification can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of one or more embodiments of this specification shall be included within the scope of the claims of this specification.

Claims

1. An autonomous and controllable anti-interference timing method based on Beidou, characterized in that: Specifically include: Based on the different time synchronization modes in the Beidou time synchronization device and the deviation of the historical time synchronization processing results in different periods, the distribution data of the time synchronization deviation period of the time synchronization mode on different dates is determined; When it is determined that there is no synchronization mode that satisfies the synchronization processing reliability requirement based on the distribution data of the synchronization deviation periods of different dates for different synchronization modes, proceed to the next step; Obtain distribution data of different time periods in which different time synchronization modes are identified as time synchronization deviation time periods, and use the distribution data identified as time synchronization deviation time periods to determine the time synchronization processing time periods and time synchronization processing priorities in the time periods, and use the time synchronization processing priorities to determine the priority time synchronization processing time periods; The distribution data of the timing deviation period includes the number of timing deviation periods of different timing modes in the period; During the priority synchronization processing period, the time synchronization processing results of different time synchronization modes are obtained, and when it is determined that correction processing of the target device is required in combination with the distribution data of the time synchronization deviation periods of different time synchronization modes in the priority synchronization processing period, the adjustment processing strategy of the priority synchronization processing period is determined according to the correction processing data in the priority synchronization processing period and the time synchronization processing priority.

2. The Beidou-based autonomous, controllable, anti-interference timing method according to claim 1, characterized in that: The timing modes include a satellite navigation positioning system, a long wave mode, and a short wave mode.

3. The Beidou-based autonomous, controllable, anti-interference timing method according to claim 1, characterized in that: The time synchronization deviation period is a period during which there is a deviation between the time synchronization processing result and the actual time synchronization result.

4. The Beidou-based autonomous, controllable, anti-interference timing method according to claim 1, characterized in that: Determine whether the time synchronization processing reliability of the time synchronization mode meets the requirements, including: Based on the distribution data of the time synchronization deviation periods on different dates of the time synchronization mode, the number of times different time periods are identified as time synchronization deviation periods is determined, and the number of times the time synchronization deviation is used as the number of time synchronization deviations; Determining deviation coefficients for different time periods based on a ratio of the number of time synchronization deviations to the number of time synchronization processing in the time period; Whether the time synchronization processing reliability of the time synchronization mode meets the requirements is determined according to the deviation coefficients of different time periods.

5. The Beidou-based autonomous controllable anti-interference timing method as claimed in claim 4, characterized in that: When there is a period in which the deviation coefficient is less than the preset deviation coefficient, it is determined that the time synchronization processing reliability of the time synchronization mode meets the requirement.

6. The Beidou-based autonomous, controllable, anti-interference timing method according to claim 1, characterized in that: The method for determining the time synchronization processing period in the period is: Determine the total number of timing deviation periods based on the number of timing deviation periods in the period under different timing modes; According to the total number of time synchronization deviation periods in the period, it is determined whether the period is a time synchronization processing period.

7. The Beidou-based autonomous controllable anti-interference timing method according to claim 6, characterized in that: When the total number of corresponding deviation time periods in the time period is less than a preset number threshold, the time period is determined to be a time synchronization processing time period.

8. The Beidou-based autonomous, controllable, anti-interference timing method according to claim 6, characterized in that: The time synchronization processing priority of the time synchronization processing period is determined from small to large according to the total number of deviation periods corresponding to the time synchronization processing period.

9. The Beidou-based autonomous, controllable, anti-interference timing method according to claim 1, characterized in that: The method for determining the adjustment processing strategy of the priority time synchronization processing period is: Based on the time synchronization processing results of different time synchronization modes in the priority time synchronization processing period, determine the number of deviations between the time synchronization processing results of different time synchronization modes in the priority time synchronization processing period, and use it as the number of data deviations; The number of time synchronization processing times in the priority time synchronization processing period is used as the matching time synchronization processing times; The proportion of the number of data deviations in the number of matching time synchronization processing times is used as a time synchronization deviation factor, and the adjustment processing strategy of the priority time synchronization processing period is determined by using the time synchronization deviation factor and the time synchronization processing priority.

10. A computer device comprising: A memory and a processor connected in communication, and a computer program stored in the memory and capable of running on the processor, characterized in that when the processor runs the computer program, an autonomous, controllable, and anti-interference timing method based on Beidou is executed as described in any one of claims 1-9.

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