Bridge safety early warning method and device and electronic equipment

Abstract

The embodiment of the invention provides a bridge safety early warning method and device and electronic equipment, and the method comprises the steps: obtaining the amplitude information of a plurality of target point locations and the traffic flow information of a target bridge segment based on a preset wave beam, and enabling the traffic flow information to comprise the vehicle passing number information and / or the vehicle passing speed information; according to the amplitude information, continuous frame deflection track information is generated, according to the traffic flow information, continuous frame target statistical information is generated, and the continuous frame target statistical information comprises traffic quantity statistical information of continuous frame target vehicle types, continuous frame vehicle traffic speed statistical information and / or continuous frame traffic congestion degree statistical information; and according to the continuous frame deflection track information and / or continuous frame target statistical information, generating target bridge section safety early warning information. According to the invention, the artificial participation degree in the bridge monitoring process is reduced, the bridge monitoring cost is reduced, the bridge monitoring steps are simplified, and the bridge monitoring efficiency and precision are improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of bridge safety monitoring, and in particular to a bridge safety early warning method, device and electronic equipment. Background Art

[0002] Bridge safety monitoring is important for preventing traffic accidents, extending bridge service life, and optimizing bridge maintenance plans.

[0003] At present, in the relevant technologies, the bridge safety monitoring process is mostly based on manual inspection, supplemented by machine inspection. The above method has the problems of complex bridge safety monitoring process, low efficiency and accuracy, and high cost.

[0004] Therefore, a new technical solution is urgently needed to solve the above technical problems. Summary of the invention

[0005] According to the embodiments of the present application, a bridge safety warning method, device and electronic equipment are provided. The present application is conducive to reducing the manual participation in the bridge traffic safety monitoring process, reducing the cost of bridge traffic safety monitoring, simplifying the bridge traffic safety monitoring steps, and improving the efficiency and accuracy of bridge traffic safety monitoring.

[0006] In a first aspect of the present application, a bridge safety early warning method is provided, comprising:

[0007] Based on the preset beam, the amplitude information of multiple target points and the traffic flow information of the target bridge section are obtained, wherein the traffic flow information includes: the number of vehicles passing and / or the speed of vehicles passing;

[0008] Based on the amplitude information, the continuous frame deflection track information is generated.

[0009] Generate continuous frame target statistical information according to the vehicle flow information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type passing number statistical information, continuous frame vehicle passing speed statistical information, and / or continuous frame traffic congestion statistical information;

[0010] According to the continuous frame deflection track information and / or the continuous frame target statistical information, the target bridge section safety warning information is generated.

[0011] In some optional implementations, before generating continuous frame track information according to the amplitude information and / or generating continuous frame target statistical information according to the vehicle flow information, the method further includes:

[0012] Based on point trace screening, amplitude screening information and vehicle flow screening information are generated;

[0013] Filter information based on amplitude to generate continuous frame deflection track information;

[0014] The information is filtered based on the traffic flow and continuous frame target statistics are generated.

[0015] In some optional implementations, generating continuous frame deflection track information according to the amplitude information includes:

[0016] Determine target ratio information according to the amplitude information;

[0017] The target ratio information is determined according to the following formula:

[0018]

[0019] Among them, frac is the target ratio, y n-1 is the amplitude of the n-1th resolution unit, y n is the amplitude of the nth resolution unit, y n+1 is the amplitude of the n+1th resolution unit;

[0020] Determine the distance information of the target point according to the speed of light, the frequency range of the preset beam, the target ratio and the target sampling distance peak index;

[0021] The distance information is determined according to the following formula:

[0022]

[0023] Where R is the distance, I N is the target sampling distance peak index, f rac is the target ratio, c is the speed of light, and B is the frequency range of the preset beam;

[0024] Determine the deflection information of the target point based on the distance information;

[0025] Based on the deflection information, continuous frame deflection track information is generated.

[0026] In some optional implementations, determining the deflection information of the target point according to the distance information includes:

[0027] When the length of the target bridge segment is less than or equal to the preset length threshold, the deflection information is determined according to the following formula:

[0028] Δh=R-R0

[0029] Wherein, Δh is the deflection, R is the detection distance of the preset beam after being affected by the vibration factor, and R0 is the original detection distance of the preset beam before being affected by the vibration factor;

[0030] When the above length is greater than the preset length threshold, the deflection information is determined according to the following formula:

[0031]

[0032] Among them, Δh is the deflection, R is the detection distance of the preset beam after being affected by the vibration factor, R0 is the original detection distance of the preset beam before being affected by the vibration factor, θ is the detection angle of the preset beam after being affected by the vibration factor, and θ0 is the original detection angle of the preset beam before being affected by the vibration factor.

[0033] In some optional implementations, the above method further includes:

[0034] When the full load rate of the target bridge section is less than the preset full load rate, the vibration frequency information of multiple target points is obtained based on the preset beam;

[0035] Generate continuous frame frequency track information according to the vibration frequency information;

[0036] Generate safety warning information of the target bridge section based on the continuous frame frequency track information.

[0037] In some optional implementations, the above method further includes:

[0038] Generate first-order continuous frame frequency track information according to first-order modal vibration frequency information;

[0039] Generate second-order continuous frame frequency track information according to second-order modal vibration frequency information;

[0040] Generate target bridge section safety warning information according to the first-order continuous frame frequency track information and / or the second-order continuous frame frequency track information;

[0041] Among them, the first-order modal vibration frequency information is the vibration frequency information corresponding to the first direction, the second-order modal vibration frequency information is the vibration frequency information corresponding to the second direction, and the angle between the first direction and the second direction is greater than or equal to the first angle threshold and less than or equal to the second angle threshold.

[0042] In some optional implementations, the above method further includes:

[0043] When the amplitude corresponding to the target frame is greater than or equal to the preset amplitude, when the deflection value corresponding to the target frame is greater than or equal to the preset deflection value, and / or when the vibration frequency value corresponding to the target frame is greater than or equal to the preset vibration frequency, the target frame is determined to be an abnormal frame;

[0044] When the number of abnormal frames is greater than a preset threshold, target bridge section safety warning information is sent to the target device, wherein the target bridge section safety warning information includes: abnormal frame information, target point information corresponding to the abnormal frame, amplitude information corresponding to the abnormal frame, deflection value information corresponding to the abnormal frame, and / or vibration frequency value information corresponding to the abnormal frame.

[0045] In some optional implementations, generating target bridge section warning information according to continuous frame deflection track information and / or continuous frame target statistical information includes:

[0046] Generate a continuous frame deflection target vehicle model quantity comparison sequence, a continuous frame deflection vehicle average speed comparison sequence, and / or a continuous frame deflection congestion comparison sequence according to historical continuous frame trajectory information and historical continuous frame target statistical information;

[0047] Based on the continuous frame deflection target vehicle model quantity comparison sequence, the continuous frame deflection vehicle average speed comparison sequence, and / or the continuous frame deflection congestion comparison sequence, according to the preset deflection threshold, determine the target vehicle model vehicle quantity threshold, the vehicle average speed threshold, and / or the congestion threshold;

[0048] The number of target vehicle types passing through the current target bridge section is greater than the target vehicle type vehicle number threshold;

[0049] The average speed of vehicles passing through the current target bridge section is greater than the average vehicle speed threshold;

[0050] and / or, when the traffic congestion of the current target bridge section is greater than the congestion threshold,

[0051] Send target bridge section safety warning information to the target device.

[0052] In a second aspect of the present application, a bridge safety early warning device is provided, comprising:

[0053] An acquisition unit is used to acquire amplitude information of multiple target points and traffic flow information of a target bridge section based on a preset beam, wherein the traffic flow information includes: vehicle passing quantity information and / or vehicle passing speed information;

[0054] The first generating unit is used to generate continuous frame deflection track information according to the amplitude information,

[0055] A second generating unit is used to generate continuous frame target statistical information according to the vehicle flow information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type passing number statistical information, continuous frame vehicle passing speed statistical information, and / or continuous frame traffic congestion statistical information;

[0056] The early warning unit is used to generate target bridge section safety early warning information based on continuous frame deflection track information and / or continuous frame target statistical information.

[0057] In a third aspect of the present application, an electronic device is provided, comprising a processor and a memory, wherein the memory stores computer program instructions, and the computer program instructions are used to execute the method described above when the processor is executed.

[0058] The embodiments of the present application provide a bridge safety warning method, device and electronic device, wherein the method includes: based on a preset beam, obtaining amplitude information of multiple target points and traffic flow information of a target bridge section, wherein the traffic flow information includes: vehicle number information and / or vehicle speed information; generating continuous frame deflection track information based on the amplitude information, generating continuous frame target statistical information based on the traffic flow information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type traffic number statistical information, continuous frame vehicle speed statistical information, and / or continuous frame traffic congestion statistical information; generating target bridge section safety warning information based on continuous frame deflection track information and / or continuous frame target statistical information. The present application is conducive to reducing the degree of manual participation in the bridge monitoring process, reducing the cost of bridge monitoring, simplifying the bridge monitoring steps, and improving the efficiency and accuracy of bridge monitoring.

[0059] It should be understood that the contents described in the Summary of the Invention are not intended to limit the key or important features of the embodiments of the present application, nor are they intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The above and other features, advantages and aspects of the embodiments of the present application will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0061] Figure 1 A schematic diagram of a process of a bridge safety early warning method provided in an embodiment of the present application;

[0062] Figure 2 A schematic diagram of target point layout provided in an embodiment of the present application;

[0063] Figure 3 A structural schematic diagram of a bridge safety warning device provided in an embodiment of the present application;

[0064] Figure 4 A structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0065] Figure 5 A schematic diagram of the structure of a terminal device or a server suitable for implementing an embodiment of the present application;

[0066] in, Figure 2 The corresponding relationship between the reference numerals and the structure names is as follows:

[0067] 10. Radar; 20. Bridge tower; 10a. Preset beam; A. Main span point; B. 1 / 2 span point; C. 1 / 4 span point. DETAILED DESCRIPTION

[0068] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0069] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0070] According to a first aspect of the present application, the present application provides a bridge safety early warning method. Figure 1 A schematic diagram of a process of a bridge safety early warning method 100 provided in an embodiment of the present application. Figure 1 As shown, the method 100 includes:

[0071] Step S110, based on the preset beam 10a, the amplitude information of multiple target points and the traffic flow information of the target bridge section are obtained, wherein the traffic flow information includes: vehicle passing quantity information and / or vehicle passing speed information.

[0072] Exemplarily, the preset beam 10 a may include a frequency modulated continuous wave (Frequency Modulated Continuous Wave, FMCW) beam. Specifically, the preset beam 10 a may be emitted by the millimeter wave radar 10 .

[0073] It should be noted that the above-mentioned target points can be determined according to the structural characteristics of the target monitoring bridge, wherein the above-mentioned target detection bridge may include: medium and large bridges such as high-speed bridges and cross-sea bridges. Exemplarily, the above-mentioned target points can be strong reflection points of the target bridge section within the coverage range of the above-mentioned preset beam 10a by adjusting the irradiation direction of the radar 10. It should be noted that corner reflectors can be set for the weak reflection points of the target bridge section to enhance the reflected signal of the radar 10. The above-mentioned multiple target points can be evenly set along the traffic flow direction or bridge guide of the target monitoring bridge. Alternatively, the above-mentioned multiple target points can also be unevenly set along the traffic flow direction or bridge guide of the target monitoring bridge. Specifically, in the bridge section that needs intensive monitoring, the target points can be densely set; in the bridge section that does not need intensive monitoring, the target points can be sparsely set. It should be noted that the above-mentioned multiple target points can be determined according to the length and height of the target monitoring bridge section, the user's monitoring accuracy requirements for the target, and the user's traffic safety warning accuracy requirements for the target monitoring bridge. Among them, the height of the target point is positively correlated with the length and / or height of the target monitoring bridge section. The number of target points is positively correlated with the user's demand for target monitoring accuracy and / or the user's demand for safety warning accuracy of the target monitoring bridge.

[0074] For example, Figure 2 A schematic diagram of target point layout provided in an embodiment of the present application. Figure 2 As shown, the millimeter wave radar 10 can be installed at the bearing point of the target bridge section without line of sight obstruction, such as: bridge tower 20, bridge pier and cable tower, so that the coverage rate of the frequency modulated continuous wave beam for the lane of the target bridge section is greater than or equal to the preset coverage rate, so as to obtain the above amplitude information and the above traffic flow information, wherein the number of the above millimeter wave radars 10 can be determined according to the length of the target bridge section, for example, when the length of the target bridge section is greater than or equal to 800m and less than or equal to 1000m, that is, when the monitored bridge is a medium-sized suspension bridge, two monitoring radars 10 can be installed to realize comprehensive monitoring of the target bridge section. It should be noted that the amplitude generated by the force on the above bearing point is much smaller than the amplitude generated by the force on the bridge deck. When the target monitored bridge is a medium-sized suspension bridge, corner reflectors are set at one-half of the target bridge section, i.e., the main span point A of the target bridge section, one-quarter of the target bridge section, i.e., the 1 / 2 span point B of the target bridge section, and one-eighth of the target bridge section, i.e., the 1 / 4 span point C of the target bridge section, to enhance the reflection intensity of the radar 10 echo, thereby obtaining the above-mentioned amplitude information of the main span point A, 1 / 2 span point B and 1 / 4 span point C of the target bridge section.

[0075] Exemplarily, the amplitude information and the vehicle flow information may be determined based on an echo signal corresponding to the preset beam 10a.

[0076] Exemplarily, the amplitude information can be determined based on the Fourier transform technology according to the echo signal corresponding to the preset beam 10a. It should be noted that the amplitude information includes: the amplitude information of the target point due to the vibration of the bridge.

[0077] Exemplarily, based on signal processing technology, the traffic flow information of the target bridge section can be determined according to the echo signal corresponding to the preset beam 10a, wherein the traffic flow information includes: vehicle passing quantity information and / or vehicle passing speed information.

[0078] Specifically, the number of vehicles passing through the target bridge section can be determined based on target counting, deduplication processing and other technologies; the vehicle speed information can be determined based on Doppler frequency shift technology, coherent processing technology and the like.

[0079] Step S120, generating continuous frame deflection track information according to the amplitude information.

[0080] Exemplarily, the deflection information of multiple target points can be determined based on the amplitude information, the bandwidth information of the preset beam 10a and the speed of light information, and continuous frame deflection track information can be generated based on the deflection information of the multiple target points.

[0081] It should be noted that the continuity of the above-mentioned continuous frame deflection track information is positively correlated with the number of the above-mentioned target points and / or the density between the target points, that is, the more the number of target points and / or the denser the target points, the more data volume of the above-mentioned continuous frame deflection track information, and the better the continuity and accuracy of the above-mentioned continuous frame deflection track information.

[0082] Step S130, generating continuous frame target statistical information according to the vehicle flow information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type passing quantity statistical information, continuous frame vehicle passing speed statistical information, and / or continuous frame traffic congestion statistical information.

[0083] Exemplarily, the traffic number statistics of the target vehicle type in consecutive frames can be generated based on the above-mentioned traffic number information. It should be noted that the traffic number information of large vehicles, medium vehicles and small vehicles in the target bridge section and target period can be determined based on the above-mentioned traffic number information.

[0084] Specifically, the traffic quantity statistics information of the target vehicle types in continuous frames can be generated according to the traffic quantity information of large vehicles, the traffic quantity information of medium vehicles and the traffic quantity information of small vehicles in the target time period of multiple target points.

[0085] Exemplarily, based on the above vehicle speed information, the vehicle speed distribution information of the target bridge section and the target time period and / or the vehicle average speed information of the target bridge section and the target time period can be generated.

[0086] Specifically, continuous frame vehicle speed statistical information may be generated based on vehicle speed distribution information at target time periods at multiple target points and / or vehicle average speed information at target bridge sections during target time periods.

[0087] It should be noted that the above-mentioned vehicle congestion information can be determined based on the above-mentioned vehicle passing quantity information and / or the above-mentioned vehicle passing speed information.

[0088] Exemplarily, the traffic density information, average speed reduction degree information, etc. of the target bridge section during the target period of time may be generated based on the above-mentioned vehicle passing number information and / or the above-mentioned vehicle passing speed information.

[0089] Specifically, continuous frame traffic congestion statistics can be generated based on traffic density information, average speed reduction degree information, etc. during target time periods at multiple target points.

[0090] Step S140, generating target bridge section safety warning information according to continuous frame deflection track information and / or continuous frame target statistical information.

[0091] It should be noted that the above-mentioned safety warning information of the target bridge section may include: traffic warning information of the target bridge section, and / or maintenance warning information of the target bridge section.

[0092] Exemplarily, when the deflection value in the above-mentioned continuous frame deflection track information is greater than or equal to the preset deflection value, traffic warning information of the target point in the target bridge section can be generated to prevent traffic accidents, and / or maintenance warning information of the target point can be generated to extend the service life of the bridge, and / or optimize the bridge maintenance cycle.

[0093] Exemplarily, when the average number of passes in the statistical information of the number of passes of the target vehicle model in consecutive frames is greater than or equal to the preset number of passes, target vehicle model passage warning information in the target bridge section can be generated to limit the number of passes of the target vehicle model in the target bridge section, so as to further prevent traffic accidents, extend the service life of the bridge, and / or optimize the bridge maintenance cycle.

[0094] Exemplarily, when the average speed in the vehicle speed statistics of consecutive frames is greater than or equal to the preset average speed, speed limit information in the target bridge section can be generated to limit the vehicle speed in the target bridge section, so as to further prevent traffic accidents, extend the service life of the bridge, and / or optimize the bridge maintenance cycle.

[0095] Exemplarily, when the average traffic congestion in the continuous frame traffic congestion statistical information is greater than or equal to the preset average congestion, diversion information in the target bridge section is generated to reduce the vehicle traffic congestion in the target bridge section, so as to further prevent traffic accidents, extend the service life of the bridge, and / or optimize the bridge maintenance cycle.

[0096] Based on this, the bridge safety warning method proposed in the present application includes: based on the preset beam 10a, obtaining the amplitude information of multiple target points and the traffic flow information of the target bridge section, wherein the traffic flow information includes: vehicle passing number information and / or vehicle passing speed information; based on the amplitude information, generating continuous frame deflection track information, based on the traffic flow information, generating continuous frame target statistical information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type passing number statistical information, continuous frame vehicle passing speed statistical information, and / or continuous frame traffic congestion statistical information; based on the continuous frame deflection track information, and / or continuous frame target statistical information, generating target bridge section safety warning information. The present application is conducive to reducing the manual participation in the bridge monitoring process, reducing the bridge monitoring cost, simplifying the bridge monitoring steps, and improving the bridge monitoring efficiency and accuracy. The present application is conducive to the simultaneous frame-by-frame precise monitoring of the deflection conditions and vehicle traffic conditions of target points of a target bridge section, and is conducive to the frame-by-frame determination of abnormal deflection, abnormal number of vehicles passing, abnormal vehicle speed and / or abnormal vehicle traffic congestion of target points of a target bridge section, and is conducive to the precise prevention of traffic accidents, extension of bridge service life, and optimization of bridge maintenance cycles in units of frames. The present application is conducive to reducing the degree of manual participation in the bridge monitoring process, reducing the cost of bridge monitoring, simplifying the bridge monitoring steps, and improving the efficiency and accuracy of bridge monitoring.

[0097] In some optional embodiments, before generating continuous frame track information based on amplitude information, and / or generating continuous frame target statistical information based on vehicle flow information, the method further includes: generating amplitude filtering information and vehicle flow filtering information based on point track filtering; generating continuous frame deflection track information based on amplitude filtering information; generating continuous frame target statistical information based on vehicle flow filtering information.

[0098] For example, the point track interval of the amplitude information can be preset according to user needs, and the amplitude screening information can be filtered and generated. Based on the amplitude screening information, the continuous frame deflection track information is generated.

[0099] Exemplarily, the point trace interval of the vehicle traffic quantity information and / or the vehicle traffic speed information can be preset according to user needs to generate filtered traffic flow screening information. Based on the above traffic flow screening information, continuous frame target statistical information is generated, wherein the above continuous frame target statistical information includes: continuous frame target vehicle model traffic quantity statistical information, continuous frame vehicle traffic speed statistical information, and / or continuous frame traffic congestion statistical information.

[0100] Based on this, the above method can realize point-based screening, accurate filtering and generation of amplitude screening information and vehicle flow screening information that meet user needs, and accurately generate continuous frame deflection track information and continuous frame target statistical information based on the above amplitude screening information and vehicle flow screening information, which is beneficial to reduce the data processing sample volume while improving the data processing sample accuracy, so as to save computing power for generating target bridge section safety warning information based on continuous frame deflection track information and / or continuous frame target statistical information, which is beneficial to improve the efficiency of warning information generation, thereby improving the efficiency and accuracy of bridge safety monitoring.

[0101] In some optional implementations, step S120, generating continuous frame deflection track information according to the amplitude information, includes:

[0102] Step S121, determining target ratio information according to the amplitude information; wherein the target ratio information is determined according to the following formula:

[0103]

[0104] Among them, frac is the target ratio, y n-1 is the amplitude of the n-1th resolution unit, y n is the amplitude of the nth resolution unit, y n+1 is the amplitude of the n+1th resolution unit.

[0105] It should be noted that the target ratio frac is the ratio of the target distance to one distance unit, wherein the target distance is the distance from the target peak true distance index to the sampling peak index. Exemplarily, after digital signal processing, the n-1th resolution unit, the nth resolution unit and the n+1th resolution unit have different amplitudes y n-1 ,y n and n+1 , according to the above n-1 ,y n and n+1 The target ratio frac can be accurately determined, and the distance information of the target point can be accurately determined based on the above target ratio frac.

[0106] Step S122, determining the distance information of the target point according to the light speed, the frequency range of the preset beam 10a, the target ratio and the target sampling distance peak index; wherein the distance information is determined according to the following formula:

[0107]

[0108] Where R is the distance, I N is the target sampling distance peak index, frac is the target ratio, c is the speed of light, and B is the frequency range of the preset beam 10a.

[0109] It should be noted that the above is the theoretical distance resolution of the preset beam 10a. For example, when the bandwidth of the preset beam 10a is 5.9943e+08 Hz, the frequency range B of the preset beam 10a is 5.9943e+08 Hz, and the theoretical distance resolution of the preset beam 10a is It is 0.2502m.

[0110] It is understandable that when the theoretical distance resolution of the preset beam 10a is 0.25m, the vehicle flow information can be accurately identified. It should be noted that the theoretical distance resolution of the preset beam 10a can be further improved based on digital signal processing technology, so that the theoretical distance resolution of the preset beam 10a is less than 0.25m, so as to further improve the recognition accuracy of the preset beam 10a for vehicle flow information.

[0111] Step S123, determining the deflection information of the target point according to the distance information.

[0112] Step S124, generating continuous frame deflection track information according to the deflection information.

[0113] It should be noted that, based on the deflection information, a uniquely identified continuous frame deflection track information can be generated. Among them, the deflection change of the above-mentioned target point can be monitored based on the above-mentioned continuous frame deflection track information. It should be noted that, on the one hand, the above-mentioned continuous frame deflection track information can monitor the deflection change of a single target point, and on the other hand, the above-mentioned continuous frame deflection track information can also monitor the continuity of the deflection information of the half of the target bridge section, that is, the main span point A of the target bridge section, the quarter of the target bridge section, that is, the 1 / 2 span point B of the target bridge section, and the eighth of the target bridge section, that is, the 1 / 4 span point C of the target bridge section.

[0114] It should be noted that, according to the above formula (1)-formula (2), the determination accuracy of the above distance information is positively correlated with the strength of the preset beam 10a signal, wherein the higher the determination accuracy of the distance information, the higher the strength of the preset beam 10a signal. Based on this, the determination accuracy requirement of the distance information can be determined according to the accuracy requirement of the continuous frame deflection track information, and the strength of the preset beam 10a signal can be adjusted according to the determination accuracy requirement of the distance information.

[0115] Based on this, the above method can accurately determine the target ratio information according to the amplitude information, accurately determine the distance information of the target point according to the speed of light, the frequency range of the preset beam 10a, the target ratio and the target sampling distance peak index, determine the deflection information of the target point according to the distance information, and accurately generate continuous frame deflection track information according to the deflection information, which is conducive to generating target bridge section safety warning information according to continuous frame deflection track information and / or continuous frame target statistical information, providing accurate data support, thereby further preventing traffic accidents, extending the service life of bridges, and optimizing bridge maintenance cycles.

[0116] In some optional implementations, step S123, determining the deflection information of the target point according to the distance information includes:

[0117] Step S123a, when the length of the target bridge section is less than or equal to the preset length threshold, the deflection information is determined according to the following formula:

[0118] Δh=R-R0 (3)

[0120] Wherein, Δh is the deflection, R is the detection distance of the preset beam 10a after being affected by the vibration factor, and R0 is the original detection distance of the preset beam 10a before being affected by the vibration factor.

[0121] Exemplarily, the preset length threshold may be 1000m. Specifically, when the length of the target bridge section is less than or equal to 1000m, the detection angle of the preset beam 10a is less affected by vibration factors. Based on this, the deflection information may be determined according to the above formula (3). It should be noted that the length of the target bridge section may be the full length of the target bridge or the length of a portion of the target bridge.

[0122] Step S123b, when the above length is greater than the preset length threshold, the deflection information is determined according to the following formula:

[0123]

[0124] Among them, Δh is the deflection, R is the detection distance of the preset beam 10a after being affected by the vibration factor, R0 is the original detection distance of the preset beam 10a before being affected by the vibration factor, θ is the detection angle of the preset beam 10a after being affected by the vibration factor, and θ0 is the original detection angle of the preset beam 10a before being affected by the vibration factor.

[0125] For example, when the length of the target bridge section is greater than 1000m, the detection distance and detection angle of the preset beam 10a are deformed due to the vibration of the bridge body, and the detection distance changes from R0 to R, and the detection angle changes from θ0 to θ. [R0, θ0] and [R, θ] are converted into a Cartesian coordinate system to determine the deflection Δh. Based on this, when the length of the target bridge section is greater than the preset length threshold, the deflection information can be determined according to the above formula (4), so that the accuracy of the deflection information can be improved.

[0126] It should be noted that, based on the above formula (2) and formula (4), when the length of the target bridge is greater than the preset length threshold, the accuracy of the deflection information determination is positively correlated with the accuracy of the target ratio frac.

[0127] Based on this, the above method determines the deflection information according to the above formula (3) when the length of the target bridge section is less than or equal to the preset length threshold, and determines the deflection information according to the above formula (4) when the length of the target bridge section is greater than the preset length threshold. This can achieve the determination of centimeter-level deflection information based on the length information of the target bridge, thereby improving the determination accuracy of the deflection information, and further improving the accuracy of the continuous frame deflection track information, so as to provide accurate data support for the subsequent generation of target bridge section safety warning information based on the continuous frame deflection track information and / or continuous frame target statistical information, thereby further preventing traffic accidents, extending the service life of the bridge, and optimizing the bridge maintenance cycle.

[0128] In some optional embodiments, the above method also includes: when the full load rate of the target bridge is less than the preset full load rate, based on the preset beam 10a, obtaining vibration frequency information of multiple target points; generating continuous frame frequency track information according to the vibration frequency information; generating target bridge section safety warning information according to the continuous frame frequency track information.

[0129] It should be noted that the full load rate can be determined based on the ratio of the actual load of the target bridge section to the maximum load of the target bridge section. The preset full load rate can be determined based on the user's early warning accuracy requirements, wherein the higher the early warning accuracy requirements, the smaller the preset full load rate.

[0130] Exemplarily, when the full load rate of the target bridge is less than the preset full load rate, based on the preset beam 10a, according to Fourier transform, the vibration frequency spectrum of the target bridge section is determined, and the continuous frame frequency track information is generated according to the vibration frequency spectrum. When the frequency value in the continuous frame frequency track information is greater than the preset frequency value, the target bridge section safety warning information is generated. The preset frequency value can be determined according to the structural information of the target bridge section, and the structural information can include: length information, height information, material information, etc.

[0131] It should be noted that the generation frequency of the safety warning information of the target bridge section is greater than the vibration frequency of the target point, so as to shorten the generation cycle of the safety warning information of the target bridge section and improve the monitoring accuracy of the target bridge section.

[0132] Based on this, the above method obtains the vibration frequency information of multiple target points based on the preset beam 10a when the full load rate of the target bridge section is less than the preset full load rate; accurately generates continuous frame frequency track information based on the vibration frequency information; accurately generates the target bridge section safety warning information based on the continuous frame frequency track information. When the full load rate of the target bridge section is small and the amplitude of the target bridge section is small, the target bridge section safety warning information can be generated by monitoring the vibration frequency of the target bridge section, so as to further realize the refined monitoring of the target bridge section.

[0133] In some optional embodiments, the above method also includes: generating first-order continuous frame frequency track information based on first-order modal vibration frequency information; generating second-order continuous frame frequency track information based on second-order modal vibration frequency information; generating target bridge section safety warning information based on first-order continuous frame frequency track information and / or second-order continuous frame frequency track information; wherein, the first-order modal vibration frequency information is the vibration frequency information corresponding to the first direction, the second-order modal vibration frequency information is the vibration frequency information corresponding to the second direction, and the angle between the first direction and the second direction is greater than or equal to the first angle threshold, and less than or equal to the second angle threshold.

[0134] Exemplarily, when the full load rate of the target bridge section is less than the preset full load rate, first-order continuous frame frequency track information can be generated based on the vibration frequency information in the first direction, and second-order continuous frame frequency track information can be generated based on the vibration frequency information in the second direction. When the frequency information in the above-mentioned first-order continuous frame frequency track information is greater than the preset frequency threshold in the first direction, and / or when the frequency information in the above-mentioned second-order continuous frame frequency track information is greater than the preset frequency threshold in the second direction, safety warning information of the target bridge section is generated.

[0135] It should be noted that the first angle threshold may be 0 degrees, and the second angle threshold may be 90 degrees.

[0136] Exemplarily, the first direction may be a horizontal direction, and the second direction may be a vertical direction. Specifically, when the full load rate of the target bridge section is less than the preset full load rate, first-order continuous frame frequency track information may be generated according to the vibration frequency information in the horizontal direction, and second-order continuous frame frequency track information may be generated according to the vibration frequency information in the vertical direction. When the frequency information in the first-order continuous frame frequency track information is greater than the horizontal preset frequency threshold, and / or when the frequency information in the second-order continuous frame frequency track information is greater than the vertical preset frequency threshold, the first direction target bridge section safety warning information and / or the second direction target bridge section safety warning information are generated accordingly.

[0137] It should be noted that the monitoring accuracy of the first-order continuous frame frequency track information and the second-order continuous frame frequency track information can be determined according to the specific structure of the target bridge section.

[0138] In some feasible implementations, the second-order continuous frame frequency track information in the vertical direction can be monitored in a focused manner so that the above-mentioned vertical preset frequency threshold is smaller than the above-mentioned horizontal preset frequency threshold, so as to achieve differentiated and refined monitoring of the second-order continuous frame frequency track information in the vertical direction and the first-order continuous frame frequency track information in the horizontal direction.

[0139] Based on this, the above method can accurately generate first-order continuous frame frequency track information according to the first-order modal vibration frequency information when the full load rate of the target bridge section is less than the preset full load rate; accurately generate second-order continuous frame frequency track information according to the second-order modal vibration frequency information; accurately generate target bridge section safety warning information according to the first-order continuous frame frequency track information and / or the second-order continuous frame frequency track information. When the full load rate of the target bridge section is small and the amplitude of the target bridge section is small, by monitoring the first-direction vibration frequency and the second-direction vibration frequency of the target bridge section, the first direction warning information and / or the second direction warning information can be refinedly generated to achieve two-way monitoring of the vibration frequency of the bridge, thereby accurately preventing bridge accidents, extending the service life of the bridge, and facilitating bridge structure optimization and bridge maintenance.

[0140] In some optional embodiments, the above method also includes: when the amplitude corresponding to the target frame is greater than or equal to the preset amplitude, the deflection value corresponding to the target frame is greater than or equal to the preset deflection value, and / or the vibration frequency value corresponding to the target frame is greater than or equal to the preset vibration frequency, determining that the target frame is an abnormal frame; when the number of abnormal frames is greater than a preset number threshold, sending target bridge section safety warning information to the target device, wherein the target bridge section safety warning information includes: abnormal frame information, target point information corresponding to the abnormal frame, amplitude information corresponding to the abnormal frame, deflection value information corresponding to the abnormal frame, and / or vibration frequency value information corresponding to the abnormal frame.

[0141] It should be noted that the above-mentioned preset amplitude, preset deflection value, preset vibration frequency, and preset number threshold value can be determined according to the structure of the target bridge section. Alternatively, the above-mentioned preset amplitude, preset deflection value, preset vibration frequency, and preset number threshold value can also be determined according to the user's safety warning accuracy requirements, wherein the above-mentioned preset amplitude, preset deflection value, preset vibration frequency, and preset number threshold value are negatively correlated with the above-mentioned safety warning accuracy requirements, that is, the higher the above-mentioned safety warning accuracy requirements, the smaller the above-mentioned preset amplitude, preset deflection value, preset vibration frequency, and preset number threshold value.

[0142] It should be noted that when the number of abnormal frames is greater than the preset threshold, the target bridge section safety warning information can be sent to the target device of the traffic management department to achieve the regulation of the traffic conditions of the target bridge section to prevent traffic accidents; the target bridge section safety warning information can also be sent to the target device of the maintenance department to facilitate the maintenance of the target bridge section.

[0143] Based on this, the above method can realize sending the target bridge section safety warning information to the target equipment belonging to the traffic management department or the maintenance department when the number of abnormal frames is greater than the preset number threshold, wherein the above target bridge section safety warning information includes: abnormal frame information, target point information corresponding to the abnormal frame, amplitude information corresponding to the abnormal frame, deflection value information corresponding to the abnormal frame, and / or vibration frequency value information corresponding to the abnormal frame, which is conducive to facilitating traffic control and maintenance of the target bridge section.

[0144] In some optional embodiments, generating target bridge section warning information according to continuous frame deflection track information and / or continuous frame target statistical information includes: generating a continuous frame deflection target vehicle model quantity comparison sequence, a continuous frame deflection vehicle average speed comparison sequence, and / or a continuous frame deflection congestion comparison sequence according to historical continuous deflection frame track information and historical continuous frame target statistical information; determining a target vehicle model vehicle quantity threshold, a vehicle average speed threshold, and / or a congestion threshold according to a preset deflection threshold based on the continuous frame deflection target vehicle model quantity comparison sequence, the continuous frame deflection vehicle average speed comparison sequence, and / or the continuous frame deflection congestion comparison sequence; when the number of target vehicle models passing through the current target bridge section is greater than the target vehicle model vehicle quantity threshold; when the average speed of vehicles passing through the current target bridge section is greater than the vehicle average speed threshold; and / or when the traffic congestion of the current target bridge section is greater than the congestion threshold, sending the target bridge section safety warning information to the target device.

[0145] Exemplarily, the preset deflection threshold can be determined according to the bridge structure of the target bridge section. Specifically, when the length of the target bridge section is 246 meters, the preset deflection threshold is less than or equal to 10 centimeters.

[0146] Exemplarily, a continuous frame deflection target vehicle model quantity comparison sequence, a continuous frame deflection vehicle average speed comparison sequence, and / or a continuous frame deflection congestion comparison sequence can be generated based on historical continuous deflection frame track information and historical continuous frame target statistical information; based on the big data training model, according to the above-mentioned continuous frame deflection target vehicle model quantity comparison sequence, continuous frame deflection vehicle average speed comparison sequence, and / or continuous frame deflection congestion comparison sequence and a preset deflection threshold of 10 cm, the target vehicle model vehicle quantity threshold, vehicle average speed threshold, and / or congestion threshold are determined, and the number of target vehicle models passing through the current target bridge section is greater than the target vehicle model vehicle quantity threshold; the average speed of vehicles passing through the current target bridge section is greater than the vehicle average speed threshold; and / or, when the traffic congestion of the current target bridge section is greater than the congestion threshold, the target bridge section safety warning information is sent to the target equipment belonging to the traffic control department or maintenance department.

[0147] Based on this, the above method can accurately generate a continuous frame deflection target vehicle model quantity comparison sequence, a continuous frame deflection vehicle average speed comparison sequence, and / or a continuous frame deflection congestion comparison sequence according to the historical continuous deflection frame track information and the historical continuous frame target statistical information; based on the continuous frame deflection target vehicle model quantity comparison sequence, the continuous frame deflection vehicle average speed comparison sequence, and / or the continuous frame deflection congestion comparison sequence, according to the preset deflection threshold, accurately determine the target vehicle model vehicle quantity threshold, vehicle average speed threshold, and / or congestion threshold to achieve the current target. When the number of target vehicle types passing through the bridge section is greater than the target vehicle type vehicle number threshold, when the average speed of vehicles passing through the current target bridge section is greater than the vehicle average speed threshold, and / or when the traffic congestion of the current target bridge section is greater than the congestion threshold, it is possible to periodically and automatically send the target bridge section safety warning information to the target equipment of the traffic control department or maintenance department accurately, thereby further facilitating the traffic control and maintenance of the target bridge section, further reducing the degree of manual participation in the bridge monitoring process, reducing the bridge monitoring cost, simplifying the bridge monitoring steps, and improving the bridge monitoring efficiency and accuracy.

[0148] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0149] The above is an introduction to the method embodiment. The following is a further explanation of the scheme described in this application through an apparatus embodiment.

[0150] According to a second aspect of the present application, the present application provides a bridge safety early warning device. Figure 3 A structural schematic diagram of a bridge safety warning device 200 provided in an embodiment of the present application is shown in FIG. Figure 3 The device 200 shown includes: an acquisition unit 210, a first generation unit 220, a second generation unit 230 and an early warning unit 240.

[0151] The acquisition unit 210 is used to acquire the amplitude information of multiple target points and the traffic flow information of the target bridge section based on the preset beam, wherein the traffic flow information includes: the number of vehicles passing and / or the speed of vehicles passing;

[0152] The first generating unit 220 is used to generate continuous frame deflection track information according to the amplitude information.

[0153] The second generating unit 230 is used to generate continuous frame target statistical information according to the vehicle flow information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type passing number statistical information, continuous frame vehicle passing speed statistical information, and / or continuous frame traffic congestion statistical information;

[0154] The warning unit 240 is used to generate target bridge section safety warning information based on continuous frame deflection track information and / or continuous frame target statistical information.

[0155] According to a third aspect of the present application, the present application provides an electronic device. Figure 3 FIG. 1 is a structural diagram of an electronic device 300 provided in an embodiment of the present application. Figure 3 As shown, the electronic device 300 includes a processor 310 and a memory 320, wherein the memory 320 stores computer program instructions, and the computer program instructions are used to execute the bridge safety early warning method described above when the processor 310 is running.

[0156] For example, Figure 5 A schematic diagram of the structure of a terminal device or server suitable for implementing an embodiment of the present application is shown.

[0157] like Figure 5 As shown, the terminal device or server includes a central processing unit (CPU) 401, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 402 or the program loaded from the storage part 408 to the random access memory (RAM) 403. In the RAM 403, various programs and data required for the operation of the terminal device or server are also stored. The CPU 401, the ROM 402, and the RAM 403 are connected to each other through a bus 404. An input / output (I / O) interface 405 is also connected to the bus 404.

[0158] The following components are connected to the I / O interface 405: an input section 406 including a keyboard, a mouse, etc.; an output section 407 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc., and a speaker, etc.; a storage section 408 including a hard disk, etc.; and a communication section 409 including a network interface card such as a LAN card, a modem, etc. The communication section 409 performs communication processing via a network such as the Internet. A drive 410 is also connected to the I / O interface 405 as needed. A removable medium 411, such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc., is installed on the drive 410 as needed, so that a computer program read therefrom is installed into the storage section 408 as needed.

[0159] In particular, according to an embodiment of the present application, the above method flow steps can be implemented as a computer software program. For example, an embodiment of the present application includes a computer program device, which includes a computer program carried on a machine-readable medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network through the communication part 409, and / or installed from the removable medium 411. When the computer program is executed by the central processing unit (CPU) 401, the above-mentioned functions defined in the system of the present application are executed.

[0160] It should be noted that the computer-readable medium shown in the present application may be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in combination with an instruction execution system, device or device. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. This propagated data signal may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which may send, propagate or transmit a program for use by or in conjunction with an instruction execution system, apparatus or device. The program code contained on the computer-readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0161] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program device according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, a program segment or a part of the code, and the aforementioned module, program segment or a part of the code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented with a dedicated hardware-based system that performs a specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0162] The units or modules involved in the embodiments described in the present application may be implemented by software or hardware. The units or modules described may also be arranged in a processor. The names of these units or modules do not, in some cases, constitute limitations on the units or modules themselves.

[0163] As another aspect, the present application further provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiment; or may exist independently without being assembled into the electronic device. The above computer-readable storage medium stores one or more programs, and when the above programs are used by one or more processors to execute the method described in the present application.

[0164] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of application involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the aforementioned application concept. For example, the above features are replaced with (but not limited to) technical features with similar functions applied in the present application.

Claims

1. A bridge safety early warning method, characterized in that: include: Based on the preset beam, the amplitude information of multiple target points and the traffic flow information of the target bridge section are obtained, wherein the traffic flow information includes: the number of vehicles passing and / or the speed of vehicles passing; According to the amplitude information, continuous frame deflection track information is generated, Generate continuous frame target statistical information according to the vehicle flow information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type passing number statistical information, continuous frame vehicle passing speed statistical information, and / or continuous frame traffic congestion statistical information; The target bridge section safety warning information is generated based on the continuous frame deflection track information and / or the continuous frame target statistical information.

2. The method according to claim 1, characterized in that: Before generating continuous frame track information according to the amplitude information and / or generating continuous frame target statistical information according to the vehicle flow information, the method further includes: Based on point trace screening, amplitude screening information and vehicle flow screening information are generated; Generating the continuous frame deflection track information according to the amplitude screening information; The continuous frame target statistical information is generated according to the vehicle flow screening information.

3. The method according to claim 2, characterized in that The step of generating continuous frame deflection track information according to the amplitude information comprises: Determining target ratio information according to the amplitude information; The target ratio information is determined according to the following formula: Among them, frac is the target ratio, y n-1 is the amplitude of the n-1th resolution unit, y n is the amplitude of the nth resolution unit, y n+1 is the amplitude of the n+1th resolution unit; Determine the distance information of the target point according to the speed of light, the frequency range of the preset beam, the target ratio and the target sampling distance peak index; The distance information is determined according to the following formula: Where R is the distance, I N is the target sampling distance peak index, f rac is the target ratio, c is the speed of light, and B is the frequency range of the preset beam; Determine the deflection information of the target point according to the distance information; The continuous frame deflection track information is generated according to the deflection information.

4. The method according to claim 3, characterized in that Determining the deflection information of the target point according to the distance information includes: When the length of the target bridge section is less than or equal to the preset length threshold, the deflection information is determined according to the following formula: Δh=R-R0 Wherein, Δh is the deflection, R is the detection distance of the preset beam after being affected by the vibration factor, and R0 is the original detection distance of the preset beam before being affected by the vibration factor; When the length is greater than the preset length threshold, the deflection information is determined according to the following formula: Among them, Δh is the deflection, R is the detection distance of the preset beam after being affected by the vibration factor, R0 is the original detection distance of the preset beam before being affected by the vibration factor, θ is the detection angle of the preset beam after being affected by the vibration factor, and θ0 is the original detection angle of the preset beam before being affected by the vibration factor.

5. The method according to any one of claims 1 to 4, characterized in that Also includes: When the full load rate of the target bridge section is less than a preset full load rate, based on the preset beam, acquiring vibration frequency information of the plurality of target points; generating continuous frame frequency track information according to the vibration frequency information; According to the continuous frame frequency track information, the target bridge section safety warning information is generated.

6. The method according to claim 5, characterized in that Also includes: Generate first-order continuous frame frequency track information according to first-order modal vibration frequency information; Generate second-order continuous frame frequency track information according to second-order modal vibration frequency information; Generate target bridge section safety warning information according to the first-order continuous frame frequency track information and / or the second-order continuous frame frequency track information; Among them, the first-order modal vibration frequency information is the vibration frequency information corresponding to the first direction, the second-order modal vibration frequency information is the vibration frequency information corresponding to the second direction, and the angle between the first direction and the second direction is greater than or equal to the first angle threshold and less than or equal to the second angle threshold.

7. The method according to claim 5, characterized in that Also includes: When the amplitude corresponding to the target frame is greater than or equal to the preset amplitude, when the deflection value corresponding to the target frame is greater than or equal to the preset deflection value, and / or when the vibration frequency value corresponding to the target frame is greater than or equal to the preset vibration frequency, the target frame is determined to be an abnormal frame; When the number of abnormal frames is greater than a preset number threshold, target bridge section safety warning information is sent to the target device, wherein the target bridge section safety warning information includes: abnormal frame information, target point information corresponding to the abnormal frame, amplitude information corresponding to the abnormal frame, deflection value information corresponding to the abnormal frame, and / or vibration frequency value information corresponding to the abnormal frame.

8. The method according to claim 1, characterized in that: The generating target bridge section warning information according to the continuous frame deflection track information and / or the continuous frame target statistical information comprises: Generate a continuous frame deflection target vehicle model quantity comparison sequence, a continuous frame deflection vehicle average speed comparison sequence, and / or a continuous frame deflection congestion comparison sequence according to historical continuous frame trajectory information and historical continuous frame target statistical information; Based on the continuous frame deflection target vehicle model quantity comparison sequence, the continuous frame deflection vehicle average speed comparison sequence, and / or the continuous frame deflection congestion comparison sequence, according to the preset deflection threshold, determine the target vehicle model vehicle quantity threshold, vehicle average speed threshold, and / or congestion threshold; The number of target vehicle types passing through the current target bridge section is greater than the target vehicle type vehicle number threshold; The average speed of vehicles passing through the current target bridge section is greater than the vehicle average speed threshold; and / or, when the traffic congestion of the current target bridge section is greater than the congestion threshold, Send target bridge section safety warning information to the target device.

9. A bridge safety early warning device, characterized in that: include: An acquisition unit is used to acquire amplitude information of multiple target points and vehicle flow information of a target bridge section based on a preset beam, wherein the vehicle flow information includes: vehicle number information and / or vehicle speed information; A first generating unit is used to generate continuous frame deflection track information according to the amplitude information, A second generating unit is used to generate continuous frame target statistical information according to the vehicle flow information, wherein the continuous frame target statistical information includes: continuous frame target vehicle type passing number statistical information, continuous frame vehicle passing speed statistical information, and / or continuous frame traffic congestion statistical information; The early warning unit is used to generate target bridge section safety early warning information based on the continuous frame deflection track information and / or the continuous frame target statistical information.

10. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer program instructions, and the computer program instructions are used to execute the method according to any one of claims 1 to 8 when the processor is executed.

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