A debris flow disaster assessment system and method for mountain hydropower stations

Abstract

The present disclosure provides a debris flow disaster assessment system and method for mountain hydropower stations. The system includes a mud level acquisition device, a control device, and a drone device. The mud level acquisition device is arranged at the exit of the valley near the hydropower station. The mud level acquisition device is used to measure the mud level information at the valley exit and send the mud level information to the control device. The control device is used to obtain the inundation range of the debris flow based on the terrain model of the valley and the mud level information, determine the area to be inspected according to the inundation range and the range of the hydropower station, generate a drone inspection route based on the area to be inspected, and send the drone inspection route to the drone device. The drone device is used to conduct inspections based on the drone inspection route and send the inspection data back to the control device for disaster assessment. According to the system of the present disclosure, the accuracy of debris flow disaster assessment can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of emergency management of geological disasters in hydropower projects, and particularly relates to a debris flow disaster assessment system and method for mountain hydropower stations. Background Art

[0002] As is well known, in mountainous areas or other areas with deep valleys and precipitous terrain, debris flows are likely to be triggered due to heavy rain, heavy snow or other natural disasters. Debris flows are characterized by suddenness, fast flow velocity, large flow rate, large material capacity and strong destructive power.

[0003] In recent years, frequent debris flows have an important impact on the safe operation of hydropower stations. Especially in the southwestern region of China, debris flow disasters have occurred many times in recent years, damaging the operation safety of hydropower stations. This is because, compared with other regions, the terrain in the southwestern region changes violently, earthquake disasters occur frequently, and the stratum conditions are complex. It is extremely easy to form loose surfaces, and there are a large number of loose debris and accumulations inside on many slopes, especially high and steep slopes. The loose soil slopes in such reservoir areas are washed and transported under the heavy rain in the rainy season, and are in a continuous process of instability and convergence, which are high-incidence areas of debris flows, especially the steep slopes surrounded by mountains on three sides that are easy to collect water. And many large-scale hydropower projects in China are mainly distributed in the southwestern region. Therefore, under the influence of geological disasters, these hydropower projects have safety risks. Taking a certain power station in the southwestern region as an example, it has been invaded by disasters such as strong earthquakes and debris flows many times. For example, in a major earthquake more than a decade ago, its dam, power house, generator sets, transmission lines, etc. were severely damaged. The outlet of the tailrace tunnel was buried by a landslide body, and multiple hydro-generator sets were flooded, and the flooding time exceeded one month; some flood discharge gates were also washed away by the flood; in a debris flow disaster caused by heavy rainfall a few years ago, the debris flow destroyed the dormitory building of the power station, blocked the river, caused a surge wave more than 10 meters high upstream of the river, deformed the gates of the flood discharge sluice of the power station, and most of the original drainage channels, bottom-fixed channels and various grid dams in the ditch were damaged, and parts of the river channel, reservoir area, electromechanical and metal structures, and safety monitoring facilities were damaged, resulting in direct economic losses of hundreds of millions of yuan. Against the background of the rapid development of hydropower project construction in the southwestern region of China, in order to improve the emergency management ability of geological disasters, it is of great significance to develop a debris flow emergency management system suitable for the environment of hydropower station reservoir areas for the safe operation of hydropower stations.

[0004] With the continuous development of engineering construction level, geological disasters such as landslides and debris flows have gradually attracted the attention of the engineering community, and the corresponding emergency management measures have also developed rapidly. However, there are some problems with the existing emergency management measures. For example, first, the post-disaster investigations of debris flows and the like mostly rely on on-site monitoring systems, and a single on-site monitoring system is not sufficient to fully grasp the post-disaster information. Second, the impact force of destructive debris flows is often large, and the inundation range is wide. The debris flow monitoring systems installed on the ground are easily damaged during the disaster, resulting in the loss of monitoring results. In addition, for the acquisition of the disaster situation after debris flows, the method of manual investigation is often adopted at present. Affected by the harsh post-disaster environment, there are great potential safety hazards in the manual on-site disaster situation investigation. In summary, the existing disaster situation assessment has great limitations, especially in terms of the accuracy and timeliness of the disaster situation, which need to be improved. Summary of the Invention

[0005] The present disclosure aims to at least solve one of the technical problems in the related art to some extent. For this reason, an object of the present disclosure is to provide a debris flow disaster situation assessment system for mountain hydropower stations, and the main object is to improve the accuracy of debris flow disaster situation assessment.

[0006] The second object of the present disclosure is to provide a method for assessing the debris flow disaster situation of mountain hydropower stations.

[0007] The third object of the present disclosure is to provide an electronic device.

[0008] To achieve the above object, an embodiment of the first aspect of the present disclosure provides a debris flow disaster situation assessment system for mountain hydropower stations, including a mud level acquisition device, a control device, and a drone device;

[0009] The mud level acquisition device is arranged at the valley outlet near the hydropower station. The mud level acquisition device is used to measure the mud level information at the valley outlet and send the mud level information to the control device;

[0010] The control device is used to obtain the inundation range of the debris flow based on the terrain model of the valley and the mud level information, determine the area to be inspected according to the inundation range and the range of the hydropower station, generate a drone inspection route based on the area to be inspected, and send the drone inspection route to the drone device;

[0011] The drone device is used to perform inspections based on the drone inspection route and send the inspection data back to the control device for disaster situation assessment.

[0012] In an embodiment of the present disclosure, the mud level acquisition device includes a plurality of mud level gauges. The distance from each mud level gauge to the ground is a set height. The plurality of mud level gauges are arranged on both sides of the valley outlet. The mud level acquisition device is also used to measure the mud level information on both sides of the valley outlet.

[0013] In one embodiment of the present disclosure, the control device is further configured to: obtain the lateral disaster-affected distance based on the mud level information on both sides of the valley outlet; obtain the longitudinal disaster-affected distance based on historical debris flow disaster-affected data; and determine the inundation range of the debris flow based on the lateral disaster-affected distance, the longitudinal disaster-affected distance, and the terrain model of the valley.

[0014] In one embodiment of the present disclosure, the control device is further configured to: obtain the overlapping range based on the inundation range and the range of the hydropower station; plan the range to be inspected within a set distance from outside the overlapping range to the overlapping range, and use the area covered within the range to be inspected as the area to be inspected.

[0015] In one embodiment of the present disclosure, the drone device includes: a camera module for collecting images; and a positioning module for obtaining the coordinate information corresponding to the images.

[0016] In one embodiment of the present disclosure, the control device is further configured to determine whether the clarity of the image exceeds a clarity threshold. If not, a reshooting instruction is generated and sent to the drone device.

[0017] In one embodiment of the present disclosure, the control device is further configured to determine whether the coordinate information is within the area to be inspected. If not, a position adjustment instruction is generated and sent to the drone device.

[0018] In one embodiment of the present disclosure, there is an energy supply device for supplying energy to the mud level collection device.

[0019] To achieve the above object, a method for assessing debris flow disasters in a mountain hydropower station based on the mountain hydropower station debris flow disaster assessment system according to any one of the above embodiments is further provided in the second aspect of the present disclosure, including:

[0020] Obtain the mud level information at the valley outlet;

[0021] Obtain the inundation range of the debris flow based on the terrain model of the valley and the mud level information, and determine the area to be inspected according to the inundation range and the range of the hydropower station;

[0022] Generate a drone inspection route based on the area to be inspected to control the drone device to perform inspections according to the drone inspection route;

[0023] Obtain the inspection data of the drone device for disaster assessment.

[0024] In one embodiment of the present disclosure, obtaining the inundation range of a debris flow based on the valley terrain model and the mud level information includes: acquiring the mud level information on both sides of the valley outlet, and obtaining the lateral disaster-affected distance based on the mud level information on both sides; obtaining the longitudinal disaster-affected distance based on historical debris flow disaster-affected data; and determining the inundation range of the debris flow based on the lateral disaster-affected distance, the longitudinal disaster-affected distance, and the valley terrain model.

[0025] To achieve the above object, an embodiment of the third aspect of the present disclosure provides an electronic device, including: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and when the instructions are executed by the at least one processor, the at least one processor is enabled to execute the method for assessing debris flow disaster conditions of a mountain hydropower station according to the embodiment of the second aspect of the present disclosure.

[0026] In one or more embodiments of the present disclosure, a mud level acquisition device is arranged at the valley outlet near the hydropower station. The mud level acquisition device is used to measure the mud level information at the valley outlet and send the mud level information to a control device; the control device is used to obtain the inundation range of the debris flow based on the valley terrain model and the mud level information, determine the area to be inspected based on the inundation range and the range of the hydropower station, generate a drone inspection route based on the area to be inspected, and send the drone inspection route to a drone device; the drone device is used to perform inspections based on the drone inspection route and send the inspection data back to the control device for disaster condition assessment. In this case, by comprehensively using the mud level acquisition device, the drone device, and the control device, the area to be inspected can be obtained more accurately based on the valley terrain model, the mud level information collected by the mud level acquisition device, and the range of the hydropower station. Then, using the drone device to inspect the area to be inspected is beneficial for the control device to obtain more comprehensive disaster condition information, so as to perform more accurate disaster condition assessment and improve the accuracy of debris flow disaster condition assessment.

[0027] Additional aspects and advantages of the present disclosure will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present disclosure will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, where:

[0029] Figure 1 A block diagram showing a debris flow disaster condition assessment system for a mountain hydropower station provided by an embodiment of the present disclosure;

[0030] Figure 2 A schematic diagram showing the scenario of a debris flow disaster condition assessment system for a mountain hydropower station provided by an embodiment of the present disclosure;

[0031] Figure 3 Shows a schematic diagram of the setting of the mud level gauge provided by an embodiment of the present disclosure;

[0032] Figure 4 Shows a schematic diagram of the lateral disaster-affected distance provided by an embodiment of the present disclosure;

[0033] Figure 5 Shows a schematic diagram of the area to be inspected provided by an embodiment of the present disclosure;

[0034] Figure 6 Shows a schematic flow diagram of the method for assessing debris flow disaster in mountain hydropower stations provided by an embodiment of the present disclosure;

[0035] Figure 7 Shows a schematic flow diagram of the method for determining the inundation range provided by an embodiment of the present disclosure;

[0036] Figure 8 Is a block diagram of an electronic device for implementing the method for assessing debris flow disaster in mountain hydropower stations according to an embodiment of the present disclosure. Detailed implementation manners

[0037] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the embodiments of the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present disclosure as detailed in the appended claims.

[0038] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined. It should also be understood that the term "and / or" used in the present disclosure refers to and includes any and all possible combinations of one or more of the associated listed items.

[0040] Embodiments of the present disclosure will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present disclosure and should not be construed as limiting the present disclosure.

[0041] The present disclosure relates to a debris flow disaster assessment system and method for mountain hydropower stations, and the main purpose is to improve the accuracy of debris flow disaster assessment.

[0042] In the first embodiment, Figure 1 A block diagram showing a debris flow disaster assessment system for a mountain hydropower station provided by an embodiment of the present disclosure is shown. The debris flow disaster assessment system for a mountain hydropower station involved in the present disclosure may be simply referred to as a disaster assessment system. As Figure 1 shown, the debris flow disaster assessment system 10 for a mountain hydropower station includes a mud level acquisition device 11, a control device 12, and a drone device 13.

[0043] In this embodiment, the mud level acquisition device 11 is arranged at the exit of the valley near the hydropower station. The mud level acquisition device 11 is used to measure the mud level information at the exit of the valley and send the mud level information to the control device 12.

[0044] Specifically, the mud level acquisition device 11 may include a plurality of mud level gauges, and each mud level gauge is arranged at the exit of the valley near the hydropower station. Each mud level gauge is used to collect the mud level information at the corresponding position (i.e., the corresponding measurement point) at the exit of the valley in real time. The distance from each mud level gauge to the ground is a set height. The set height may be represented by the symbol d. Figure 2 A schematic diagram of the scenario of the debris flow disaster assessment system for a mountain hydropower station provided by an embodiment of the present disclosure is shown. Figure 2 The topographic line in is the topographic line at the exit of the mountain valley near the hydropower station where debris flow disasters may occur, and this exit is the exit of the mountain gully debris flow. The topographic line in the figure can be determined through local geological data collection and exploration data. As Figure 2 shown, the mud level gauge is fixed at the exit of the valley, and the distance from the mud level gauge to the ground is the set height d. Thus, the possibility of debris flow damaging the mud level gauge can be reduced.

[0045] In this embodiment, a plurality of mud level gauges are arranged on both sides of the valley outlet, and the mud level acquisition device 11 is further configured to measure the mud level information on both sides of the valley outlet.

[0046] In some embodiments, the plurality of mud level gauges are, for example, two, and the two mud level gauges are respectively arranged on both sides of the valley outlet. Figure 3 The schematic diagram of the setting of the mud level gauge provided by the embodiment of the present disclosure is shown. As Figure 3 shown, the mud level gauge a and the mud level gauge b are respectively arranged on both sides of the valley outlet, and the positions of the mud level gauge a and the mud level gauge b are close to the same cross-section. The measurement point corresponding to the mud level gauge a is α, and the measurement point corresponding to the mud level gauge b is β. When a debris flow disaster occurs, the mud level information (i.e., the mud level depth) of the measurement point α collected by the mud level gauge a is d1, and the mud level information of the measurement point β collected by the mud level gauge b is d2.

[0047] In some embodiments, each mud level gauge may be a radar mud level gauge. The specific size and specifications of the radar mud level gauge may be determined according to the climate data and mountain flood data of the specific project. The radar mud level gauge may be fixed at the valley outlet through a fixed rod.

[0048] In this embodiment, the mud level acquisition device 11 further includes an information storage and transmission module, and the information storage and transmission module is used for the storage and transmission of mud level information. Specifically, the information storage and transmission module receives and stores the mud level information collected by the mud level gauge, and sends the received mud level information to the control device 12.

[0049] In some embodiments, as Figure 2 shown, the information storage and transmission module may be arranged in a rain-proof equipment box, and the equipment box may be arranged on the mountaintop. The information storage and transmission module and the mud level gauge may be connected by a cable.

[0050] In this embodiment, the control device 12 is configured to obtain the inundation range of the debris flow based on the terrain model of the valley and the mud level information, determine the area to be inspected according to the inundation range and the range of the hydropower station, generate a drone inspection route based on the area to be inspected, and send the drone inspection route to the drone device 13.

[0051] In some embodiments, the control device 12 may be located in the control room. The control device 12 may be, for example, the emergency management platform computer in the control room.

[0052] In this embodiment, the steps for the control device 12 to obtain the inundation range of the debris flow include: obtaining the lateral disaster-affected distance based on the mud level information on both sides of the valley outlet; obtaining the longitudinal disaster-affected distance based on the historical debris flow disaster-affected data; and determining the inundation range of the debris flow based on the lateral disaster-affected distance, the longitudinal disaster-affected distance, and the terrain model of the valley.

[0053] In some embodiments,Figure 4 Schematic diagram showing the lateral disaster-affected distance provided by the embodiments of the present disclosure. Assume that the fluid surface of the debris flow is a horizontal or inclined plane during its running process, and the curvature of the fluid surface of the debris flow is ignored. The control device 12, based on the positions of the measurement points of the two sludge level gauges and the sludge level depths sent by the two sludge level gauges, makes a straight line through the tops of the sludge level depth d1 and the sludge level depth d2, and extends this straight line to intersect the terrain lines on both sides at point A and point B, thereby obtaining a line segment AB. The projection l of the line segment AB on the horizontal ground is the lateral disaster-affected distance of the debris flow. In this case, through the terrain elevation data in the existing local geological data and the sludge level depths measured by the sludge level gauges, the lateral disaster-affected distance can be quickly and relatively accurately obtained, and then the disaster-affected area (i.e., the inundation range) can be quickly and accurately determined, providing better guarantee for the timeliness and accuracy of subsequent disaster situation assessment.

[0054] In some embodiments, the longitudinal disaster-affected distance can be obtained by integrating historical experience, terrain, and historical debris flow disaster data.

[0055] Figure 5 Schematic diagram showing the area to be inspected provided by the embodiments of the present disclosure.

[0056] In some embodiments, after the control device 12 obtains Figure 4 the lateral disaster-affected distance l shown, it obtains Figure 5 the longitudinal disaster-affected distance m shown based on the historical debris flow disaster data; based on the lateral disaster-affected distance l, the longitudinal disaster-affected distance m, and the terrain model of the valley, it determines the inundation range S1 of the debris flow.

[0057] In this embodiment, the steps for the control device 12 to determine the area to be inspected include: obtaining the overlapping range based on the inundation range and the range of the hydropower station; planning the area to be inspected at a set distance from outside the overlapping range to the overlapping range, and taking the area covered within the area to be inspected as the area to be inspected. The set distance is, for example, 20 - 50 m. The set distance can be determined according to the actual severity of the debris flow and experience. For larger-scale debris flows, the value of the set distance is larger. Thus, it can ensure that the area to be inspected covers the disaster-affected area that may affect the hydropower station area.

[0058] In some embodiments, the range of the hydropower station is, for example, Figure 5 the enclosed area S2 in, and based on the inundation range S1 and the range S2 of the hydropower station, the overlapping range can be obtained. The planned area to be inspected is, for example, Figure 5 the enclosed dotted line S3 in. The area covered within the enclosed dotted line S3 is the area to be inspected. The control device 12 generates a drone inspection route based on the area to be inspected. The drone inspection route is, for example, Figure 5 the broken line X in.

[0059] In this embodiment, the control device 12 obtains the patrol inspection data from the control device 12 for disaster situation assessment. The patrol inspection results include but are not limited to the captured images and the coordinate information corresponding to the images.

[0060] In some embodiments, the control device 12 is further configured to determine whether the clarity of the image exceeds a clarity threshold. If not, it indicates that the image is not clear, and then a reshooting instruction is generated and sent to the drone device 13. Thus, clearer images can be obtained better, and further the accuracy of disaster situation assessment can be improved.

[0061] In some embodiments, the control device 12 is further configured to determine whether the coordinate information is within the area to be patrolled. If not, it indicates that the position of the drone is incorrect, and then a position adjustment instruction is generated and sent to the drone device 13. Thus, the disaster situation within the area to be patrolled can be evaluated better, and further the accuracy of disaster situation assessment can be improved.

[0062] In some embodiments, the control device 12 and the drone device 13 can be connected by wireless communication methods such as 4G, 5G or wifi, and the connection method can be flexibly selected according to the actual on-site infrastructure setting conditions.

[0063] In this embodiment, the drone device 13 is configured to perform patrol inspection based on the drone patrol route and send the patrol inspection data back to the control device 12 for disaster situation assessment.

[0064] In this embodiment, the drone device 13 includes a camera module and a positioning module. The camera module is used to collect images; the positioning module is used to obtain the coordinate information corresponding to the images. Thus, more data for disaster situation assessment can be provided to the control device.

[0065] In some embodiments, the camera module can be a high-definition camera. The high-definition camera can capture high-definition images of the scene during patrol inspection.

[0066] In some embodiments, the positioning module can use Beidou Navigation or GPS.

[0067] In this embodiment, the drone device 13 further includes a wireless communication module, and the wireless communication module is used to realize the information interaction between the control device 12 and the drone device 13. Specifically, the wireless communication module can receive in real time information such as the drone patrol route, reshooting instruction and position adjustment instruction from the control device 12, and send the images collected by the camera module and the coordinate information generated by the positioning module to the control device 12.

[0068] In this embodiment, after receiving the drone patrol route, the drone device 13 flies and patrols the area to be patrolled according to the drone patrol route. During the patrol process, the camera module collects images, and the positioning module generates the coordinate information corresponding to the images.

[0069] In some embodiments, after receiving a reshooting instruction or a position adjustment instruction, the drone device 13 performs reshooting and supplementary shooting of images or adjusts its position according to the corresponding instruction.

[0070] In some embodiments, the debris flow disaster assessment system 10 for mountain hydropower stations further includes an energy supply device. The energy supply device is used to supply energy to the mud level acquisition device 11.

[0071] In some embodiments, the energy supply device and the mud level gauge can be connected by a cable.

[0072] In some embodiments, the energy supply device can also supply energy to other related devices in the disaster assessment system.

[0073] In some embodiments, the energy supply device can include a solar photovoltaic panel installed on the top of the equipment box. Thereby, the economy of the disaster assessment system can be improved.

[0074] In the debris flow disaster assessment system for mountain hydropower stations of the present disclosure, the mud level acquisition device is arranged at the exit of the valley near the hydropower station. The mud level acquisition device is used to measure the mud level information at the exit of the valley and send the mud level information to the control device; the control device is used to obtain the inundation range of the debris flow based on the terrain model of the valley and the mud level information, determine the area to be inspected according to the inundation range and the range of the hydropower station, generate a drone inspection route based on the area to be inspected, and send the drone inspection route to the drone device; the drone device is used to perform inspections based on the drone inspection route and send the inspection data back to the control device for disaster assessment. In this case, by comprehensively using the mud level acquisition device, the drone device and the control device, the area to be inspected can be obtained more accurately based on the terrain model of the valley, the mud level information collected by the mud level acquisition device and the range of the hydropower station. Then, using the drone device to inspect the area to be inspected is beneficial for the control device to obtain more comprehensive disaster information, so as to perform more accurate disaster assessment and improve the accuracy of debris flow disaster assessment. In addition, compared with the prior art, the disaster assessment system of the present disclosure has an investigation range covering the entire post-disaster impact range and has functions such as mud level monitoring, real-time photo shooting and real-time positioning. Therefore, the disaster situation can be comprehensively grasped, and the timeliness and accuracy of the assessment are improved. The disaster assessment system of the present disclosure also uses a solar photovoltaic panel for power supply and uses non-contact investigation and shooting, avoiding the damage caused by the layout of instrument lines on site, improving the economy of the system, and ensuring the timeliness of disaster assessment.

[0075] The following are the method embodiments of the present disclosure. For details not disclosed in the method embodiments of the present disclosure, please refer to the system embodiments of the present disclosure. The method embodiments of the present disclosure propose a method for evaluating debris flow disasters in mountain hydropower stations. The method for evaluating debris flow disasters in mountain hydropower stations uses the debris flow disaster evaluation system of the above system embodiment to implement disaster evaluation.

[0076] Figure 6 The flowchart of the method for evaluating debris flow disasters in mountain hydropower stations provided by the embodiments of the present disclosure is shown. As Figure 6 shown, the method for evaluating debris flow disasters in mountain hydropower stations includes:

[0077] Step S11, obtaining the mud level information at the valley outlet;

[0078] Step S12, obtaining the inundation range of the debris flow based on the terrain model of the valley and the mud level information, and determining the area to be inspected according to the inundation range and the range of the hydropower station;

[0079] Step S13, generating a UAV inspection route based on the area to be inspected, and controlling the UAV device to perform inspections according to the UAV inspection route;

[0080] Step S14, obtaining the inspection data of the UAV device for disaster evaluation.

[0081] Optionally, the mud level information at the valley outlet in step S11 is the mud level information on both sides of the valley outlet.

[0082] Optionally, Figure 7 The flowchart of the method for determining the inundation range provided by the embodiments of the present disclosure is shown. As Figure 7 shown, the method for determining the inundation range in step S12 includes:

[0083] Step S121, obtaining the mud level information on both sides of the valley outlet, and obtaining the lateral disaster-affected distance based on the mud level information on both sides;

[0084] Step S122, obtaining the longitudinal disaster-affected distance based on historical debris flow disaster data;

[0085] Step S123, determining the inundation range of the debris flow based on the lateral disaster-affected distance, the longitudinal disaster-affected distance, and the terrain model of the valley.

[0086] Optionally, the method for determining the area to be inspected in step S12 includes: obtaining the overlapping range based on the inundation range and the range of the hydropower station; planning the area to be inspected at a set distance from the outside of the overlapping range to the overlapping range, and taking the area covered within the area to be inspected as the area to be inspected.

[0087] Optionally, the inspection data in step S14 includes the collected images and the coordinate information corresponding to the images.

[0088] Optionally, in step S14, after obtaining the inspection data of the drone device, it further includes determining whether the clarity of the collected image exceeds the clarity threshold. If it does not exceed, a reshooting instruction is generated and sent to the drone device.

[0089] Optionally, in step S14, after obtaining the inspection data of the drone device, it further includes determining whether the coordinate information is within the area to be inspected. If it is not within, a position adjustment instruction is generated and sent to the drone device.

[0090] It should be noted that the foregoing explanation of the embodiment of the mountain hydropower station debris flow disaster assessment system also applies to the mountain hydropower station debris flow disaster assessment method of this embodiment, and will not be elaborated here.

[0091] The serial numbers of the above embodiments of the present disclosure are only for description and do not represent the advantages and disadvantages of the embodiments.

[0092] In the mountain hydropower station debris flow disaster assessment method of the present disclosure, the mud level information at the valley outlet is obtained; based on the terrain model of the valley and the mud level information, the inundation range of the debris flow is obtained, and the area to be inspected is determined according to the inundation range and the range of the hydropower station; based on the area to be inspected, a drone inspection route is generated to control the drone device to perform inspections according to the drone inspection route; the inspection data of the drone device is obtained for disaster assessment. In this case, by comprehensively using the mud level collection device, the drone device and the control device, based on the terrain model of the valley, the mud level information collected by the mud level collection device and the range of the hydropower station, the area to be inspected can be obtained more accurately. Then, the drone device is used to inspect the area to be inspected, which is beneficial for the control device to obtain more comprehensive disaster information, so as to perform more accurate disaster assessment and improve the accuracy of debris flow disaster assessment. In addition, compared with the prior art, the disaster assessment method of the present disclosure has an investigation range covering the entire post-disaster impact range, and has functions such as mud level monitoring, real-time photo shooting and real-time positioning. Therefore, the disaster situation can be comprehensively grasped, and the timeliness and accuracy of the assessment are improved. The disaster assessment method of the present disclosure also uses non-contact investigation and shooting, avoiding the damage caused by the layout of instrument lines on site, and ensuring the timeliness of disaster assessment.

[0093] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

[0094] Figure 8It is a block diagram of an electronic device for implementing the debris flow disaster assessment method of the mountain hydropower station in the embodiments of the present disclosure. The electronic device is intended to represent various forms of digital computers, such as, laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as, personal digital processors, cellular phones, smart phones, wearable electronic devices, and other similar computing devices. The components, the connections and relationships between the components, and the functions of the components shown in the present disclosure are only examples and are not intended to limit the implementation of the present disclosure described and / or claimed in the present disclosure.

[0095] As Figure 8 shown, the electronic device 20 includes a computing unit 21, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 22 or a computer program loaded from a storage unit 28 into a random access memory (RAM) 23. In the RAM 23, various programs and data required for the operation of the electronic device 20 can also be stored. The computing unit 21, the ROM 22, and the RAM 23 are connected to each other through a bus 24. An input / output (I / O) interface 25 is also connected to the bus 24.

[0096] Multiple components in the electronic device 20 are connected to the I / O interface 25, including: an input unit 26, such as a keyboard, a mouse, etc.; an output unit 27, such as various types of displays, speakers, etc.; a storage unit 28, such as a magnetic disk, an optical disc, etc., and the storage unit 28 is communicatively connected to the computing unit 21; and a communication unit 29, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 29 allows the electronic device 20 to exchange information / data with other electronic devices through a computer network such as the Internet and / or various telecommunication networks.

[0097] The computing unit 21 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the computing unit 21 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 21 executes the various methods and processes described above, such as executing the debris flow disaster assessment method for mountain hydropower stations. For example, in some embodiments, the debris flow disaster assessment method for mountain hydropower stations can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as the storage unit 28. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 20 via the ROM 22 and / or the communication unit 29. When the computer program is loaded into the RAM 23 and executed by the computing unit 21, one or more steps of the debris flow disaster assessment method for mountain hydropower stations described above can be executed. Alternatively, in other embodiments, the computing unit 21 can be configured to execute the debris flow disaster assessment method for mountain hydropower stations in any other suitable manner (e.g., by means of firmware).

[0098] The various embodiments of the systems and techniques described above in this disclosure can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-chip (SOCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor, and can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0099] The program code for implementing the methods of this disclosure can be written in any combination of one or more programming languages. These program codes can be provided to the processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing devices, such that when the program codes are executed by the processor or controller, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The program codes can be executed entirely on the machine, partially on the machine, as an independent software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0100] In this disclosure, a machine-readable medium can be a tangible medium that can contain or store a program for use by or in connection with an instruction execution system, apparatus, or electronic device. The machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or electronic devices, or any suitable combination of the foregoing. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, 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 disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0101] To provide for interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the computer. Other kinds of devices can also be used to provide for interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0102] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), the Internet, and a blockchain network.

[0103] A computer system may include a client and a server. The client and the server are generally far from each other and usually interact through a communication network. The relationship between the client and the server is created by computer programs that run on respective computers and have a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, and solves the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services ("Virtual Private Server", or simply "VPS"). The server may also be a server of a distributed system, or a server combined with a blockchain.

[0104] It should be understood that various forms of the processes shown above can be used, steps can be reordered, added or deleted. For example, the steps recited in the present disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and the present disclosure does not limit this here.

[0105] The above specific embodiments do not constitute a limitation on the protection scope of the present disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. A debris flow disaster assessment system for mountain hydropower stations, characterized in that, It includes a mud level acquisition device, a control device, and a drone device; The mud level acquisition device is arranged at the exit of the valley near the hydropower station. The mud level acquisition device is used to measure the mud level information at the exit of the valley and send the mud level information to the control device; The control device is used to obtain the inundation range of the debris flow based on the terrain model of the valley and the mud level information, determine the area to be inspected based on the inundation range and the range of the hydropower station, generate a drone inspection route based on the area to be inspected, and send the drone inspection route to the drone device; The drone device is used to conduct inspections based on the drone inspection route and send the inspection data back to the control device for disaster assessment; The mud level acquisition device includes a plurality of mud level gauges. The distance from each mud level gauge to the ground is a set height. The plurality of mud level gauges are arranged on both sides of the exit of the valley. The mud level acquisition device is also used to measure the mud level information on both sides of the exit of the valley; The control device is also used to: Obtain the lateral disaster-affected distance based on the mud level information on both sides of the exit of the valley; Obtain the longitudinal disaster-affected distance based on historical debris flow disaster data; Determine the inundation range of the debris flow based on the lateral disaster-affected distance, the longitudinal disaster-affected distance, and the terrain model of the valley; Obtain the overlapping range based on the inundation range and the range of the hydropower station; Plan the area to be inspected at a set distance from outside the overlapping range to the overlapping range, and use the area covered within the area to be inspected as the area to be inspected.

2. The debris flow disaster situation assessment system for mountain hydropower stations according to claim 1, characterized in that, The drone device includes: A camera module for collecting images; A positioning module for obtaining the coordinate information corresponding to the image.

3. The debris flow disaster assessment system for mountain hydropower stations according to claim 2, characterized in that The control device is also used to determine whether the clarity of the image exceeds the clarity threshold. If not, generate a reshooting instruction and send it to the drone device.

4. The debris flow disaster assessment system for mountain hydropower stations according to claim 2, wherein, The control device is also used to determine whether the coordinate information is within the area to be inspected. If not, generate a position adjustment instruction and send it to the drone device.

5. The debris flow disaster situation assessment system for mountain hydropower stations according to claim 1, wherein It also includes: An energy supply device for supplying energy to the mud level acquisition device.

6. A method for assessing debris flow disasters in mountain hydropower stations based on the debris flow disaster assessment system for mountain hydropower stations described in any one of claims 1-5, characterized in that, It includes: Obtain the mud level information at the exit of the valley; Obtain the inundation range of the debris flow based on the terrain model of the valley and the mud level information, and determine the area to be inspected based on the inundation range and the range of the hydropower station; Generate a drone inspection route based on the area to be inspected to control the drone device to conduct inspections according to the drone inspection route; Obtain the inspection data of the drone device for disaster assessment.

7. The debris flow disaster assessment method for mountain hydropower stations according to claim 6, wherein The obtaining the inundation range of the debris flow based on the terrain model of the valley and the mud level information includes: Obtain the mud level information on both sides of the exit of the valley, and obtain the lateral disaster-affected distance based on the mud level information on both sides; Obtain the longitudinal disaster-affected distance based on historical debris flow disaster data; Determine the inundation range of the debris flow based on the lateral disaster-affected distance, the longitudinal disaster-affected distance, and the terrain model of the valley.

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