A communication network construction method, device, terminal device and medium for coping with emergencies

Abstract

The present application discloses a method, apparatus, terminal device and medium for constructing a communication network for dealing with emergency events, and the present application belongs to the technical field of wireless communication networks. The method includes: determining a communication impact area according to the location where the emergency event occurs; determining a target satellite, the setting mode of the air communication layer and the setting location of the temporary base station according to the communication impact area; performing communication access control on the target satellite according to the satellite communication demand, and determining the number of temporary base stations to be set according to the communication demand of the temporary base stations; providing a communication connection to the communication impact area based on the target satellite and the temporary base stations. With this technical solution, by determining the communication impact area according to the location where the emergency event occurs and determining the relevant communication settings of the target satellite and the temporary base stations according to the communication impact area, a communication network in the communication impact area can be constructed, so as to achieve the balance of communication resources and fast communication connection in the area where the communication is affected by the emergency event, and improve the emergency response speed and processing efficiency.

Description

Technical Field

[0001] This application belongs to the technical field of wireless communication networks, and particularly relates to a method, device, terminal device, and medium for constructing a communication network to cope with emergencies. Background Art

[0002] In modern society, communication networks have become a key infrastructure for people's lives and social operation. However, in emergency scenarios such as earthquakes and debris flows, extremely severe communication dilemmas will be faced. When disasters such as earthquakes and debris flows occur, the power grid is powered off due to damaged lines, the power supply on which ground base stations rely for operation is interrupted, and at the same time, network transmission lines will also be paralyzed due to reasons such as mountain collapses and ground cracks.

[0003] Since ground base stations cannot work properly, users' communication terminals cannot obtain signals, cannot transmit the real situation of the disaster-stricken area to the outside world, and cannot receive rescue command information. This greatly hinders the comprehensive understanding of the disaster situation by rescue personnel, makes it difficult to accurately allocate rescue resources, and has a serious impact on the timely rescue of people.

[0004] Therefore, how to quickly construct a communication network after an emergency occurs is an urgent problem to be solved by those skilled in this field. Summary of the Invention

[0005] This application provides a method, device, terminal device, and medium for constructing a communication network to cope with emergencies, aiming to achieve communication resource balance and fast communication connection in the communication-affected area in case of an emergency, and improve the emergency response speed and processing efficiency.

[0006] In a first aspect, this application provides a method for constructing a communication network to cope with emergencies, and the method includes:

[0007] After an emergency occurs, obtain the occurrence location of the emergency, and determine the communication-affected area according to the occurrence location;

[0008] Determine the target satellite and the setting method of the aerial communication layer, as well as the setting positions of at least one temporary base station in the aerial communication layer according to the communication-affected area; wherein, the temporary base station includes a drone temporary base station and / or an unmanned airship temporary base station;

[0009] Evaluate the satellite communication demand and the temporary base station communication demand in the communication-affected area;

[0010] Perform communication access control on the target satellite according to the satellite communication demand, and determine the number of temporary base stations to be set according to the temporary base station communication demand; wherein, the types of the target satellites include Tian Tong satellites and Beidou satellites;

[0011] Provide a communication connection to the communication affected area based on the target satellite and the temporary base station to construct a communication network for the communication affected area.

[0012] In a second aspect, the present application provides a communication network construction device for dealing with emergencies, and the device includes:

[0013] An impact area determination module, configured to obtain the occurrence location of the emergency after the emergency occurs, and determine the communication affected area according to the occurrence location;

[0014] A method location determination module, configured to determine the target satellite and the setting method of the air communication layer, and the setting location of at least one temporary base station in the air communication layer according to the communication affected area; wherein, the temporary base station includes an unmanned aerial vehicle temporary base station and / or an unmanned airship temporary base station;

[0015] A demand determination module, configured to evaluate the satellite communication demand and the temporary base station communication demand in the communication affected area;

[0016] An access control module, configured to perform communication access control on the target satellite according to the satellite communication demand, and determine the number of temporary base stations to be set according to the temporary base station communication demand; wherein, the types of the target satellites include Tiantong satellites and Beidou satellites;

[0017] A communication network construction module, configured to provide a communication connection to the communication affected area based on the target satellite and the temporary base station to construct a communication network for the communication affected area.

[0018] In a third aspect, the present application provides a terminal device, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0019] In a fourth aspect, the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0020] In this application, after an emergency occurs, the location where the emergency occurs is obtained, and the communication affected area is determined according to the occurrence location; the target satellite and the setting method of the aerial communication layer, as well as the setting positions of at least one temporary base station in the aerial communication layer, are determined according to the communication affected area; wherein, the temporary base station includes an unmanned aerial vehicle (UAV) temporary base station and / or an unmanned airship temporary base station; the satellite communication demand and the temporary base station communication demand in the communication affected area are evaluated; communication access control is performed on the target satellite according to the satellite communication demand, and the number of temporary base stations to be set is determined according to the temporary base station communication demand; wherein, the types of the target satellites include Tiantong satellites and Beidou satellites; a communication connection is provided to the communication affected area based on the target satellite and the temporary base station to construct a communication network for the communication affected area. The above method for constructing a communication network for coping with emergencies can determine the communication affected area according to the occurrence location of the emergency, and determine the relevant communication settings of the target satellite and the temporary base station according to the communication affected area, so as to construct a communication network for the communication affected area, and can achieve the balance of communication resources and rapid communication connection in the communication affected area in an emergency, and improve the emergency response speed and processing efficiency. Description of the Drawings

[0021] Figure 1 is a schematic flowchart of a method for constructing a communication network for coping with emergencies provided in Embodiment 1 of the present application;

[0022] Figure 2 is a schematic flowchart of a method for constructing a communication network for coping with emergencies provided in Embodiment 2 of the present application;

[0023] Figure 3 is a schematic flowchart of a method for constructing a communication network for coping with emergencies provided in Embodiment 3 of the present application;

[0024] Figure 4 is a schematic structural diagram of a device for constructing a communication network for coping with emergencies provided in Embodiment 4 of the present application;

[0025] Figure 5 is a schematic structural diagram of a terminal device provided in Embodiment 5 of the present application. Detailed Embodiments

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the following further describes specific embodiments of this application in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain this application, rather than limiting this application. Additionally, it should be noted that for ease of description, only parts related to this application are shown in the drawings, rather than all content. Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of the operations can be implemented in parallel, concurrently, or simultaneously. In addition, the order of the operations can be rearranged. When the operations are completed, the process can be terminated, but there can also be additional steps not included in the drawings. The process can correspond to a method, function, procedure, subroutine, subprogram, etc.

[0027] Next, the technical solutions in the embodiments of this application will be clearly described with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of this application.

[0028] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are usually of the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0029] Next, with reference to the accompanying drawings, through specific embodiments and their application scenarios, the method, apparatus, device, and medium for constructing a communication network for coping with emergency events provided in the embodiments of this application will be described in detail.

[0030] Embodiment 1

[0031] Figure 1 is a schematic flowchart of the method for constructing a communication network for coping with emergency events provided in Embodiment 1 of this application. As Figure 1 shown, it specifically includes the following steps:

[0032] S101, after an emergency occurs, obtain the occurrence location of the emergency, and determine the communication affected area according to the occurrence location;

[0033] First, the present application is applicable to a scenario where an emergency suddenly occurs in an area and emergency handling of the emergency needs to be carried out based on a communication network; among them, an emergency can refer to an event that suddenly occurs, has a certain degree of harm or urgency, and may affect normal communication, such as natural disasters, accident disasters, public health events, and social security events, etc.

[0034] Based on the above usage scenario, it can be understood that the execution subject of the present application can be a communication management platform. Specifically, the communication management platform can be a comprehensive system for managing and controlling communication network resources to handle emergencies or ensure communication requirements in specific scenarios. Specifically, the determination of the communication - affected area and the determination of relevant data related to the target satellite and the temporary base station, etc., can be executed by the communication management platform, and a reliable and efficient communication network is established within the communication - affected area to provide a stable information transmission channel for the emergency handling of emergencies.

[0035] The occurrence location of an emergency can refer to the geographical location where the emergency actually occurs. The method for obtaining the occurrence location of an emergency can be to determine the occurrence location of the emergency according to the communication content of the communication request related to the emergency and the positioning locations of each communication request after receiving the communication request related to the emergency.

[0036] The communication - affected area can refer to the geographical area where normal communication is affected due to the occurrence of an emergency. The method for determining the communication - affected area according to the occurrence location can be to directly determine the occurrence location of the emergency as the communication - affected area; the method for determining the communication - affected area according to the occurrence location can also be to obtain the geographical feature data, event type, and disaster level parameters of the occurrence location of the emergency, generate a propagation attenuation model of the communication signal according to the geographical feature data, event type, and disaster level parameters, and determine the continuous area where the attenuation value in the propagation attenuation model exceeds the preset attenuation threshold as the communication - affected area.

[0037] In the present technical solution, optionally, obtaining the occurrence location of the emergency and determining the communication - affected area according to the occurrence location includes:

[0038] Obtaining the geographical feature data, event type, and disaster level parameters of the occurrence location of the emergency;

[0039] Generating a propagation attenuation model of the communication signal according to the geographical feature data, the event type, and the disaster level parameter;

[0040] Determining the continuous area where the attenuation value in the propagation attenuation model exceeds the preset attenuation threshold as the communication - affected area.

[0041] The geographical feature data of the occurrence location of an emergency can refer to a set of information related to the terrain, landform, and ground features of the occurrence location of the emergency. By querying data sources such as a geographical information database, a satellite remote sensing image database, and a geographical information system platform with the occurrence location of the emergency as the query condition, the geographical feature data of the occurrence location of the emergency can be obtained.

[0042] The event type of an emergency can refer to the category to which the emergency belongs, such as natural disasters (earthquakes, floods, hurricanes, etc.), accident disasters (explosions, fires, traffic accidents, etc.), public health events (outbreaks of infectious diseases, etc.), and social security events (terrorist attacks, mass incidents, etc.). Emergencies of different event types damage communication facilities in different ways and degrees, thus affecting the propagation of communication signals.

[0043] The disaster level parameter of an emergency can be a numerical value or an indicator used to measure the severity or influence of the emergency, such as the magnitude of an earthquake, the water level height of a flood, and the wind speed level of a hurricane. The larger the disaster level parameter, the stronger the damage degree of the emergency usually indicates, and the greater the impact on the propagation of communication signals.

[0044] The event type and disaster level parameter of an emergency can be determined according to the communication content of a communication request related to the emergency, such as a communication request from a monitoring device with a disaster level parameter.

[0045] The propagation attenuation model of a communication signal is a model established based on mathematical and physical principles, used to describe the situation where the intensity of a communication signal gradually weakens when propagating in a specific environment. Specifically, the propagation attenuation model of a communication signal can include geographical location and corresponding attenuation values. The method of generating the propagation attenuation model of a communication signal according to geographical feature data, event type, and disaster level parameter can adopt a hybrid algorithm based on the ray tracing method combined with an empirical propagation model, use geographical feature data to construct a spatial propagation model, and modify the key parameters of the model according to the event type and disaster level parameter to obtain the propagation attenuation model of the communication signal; it can also adopt a machine learning algorithm, use a large number of historical communication signal attenuation data corresponding to different geographical feature data, event types, and disaster level parameters as a training set, train a neural network model to accurately fit the attenuation law of the communication signal, and input the current geographical feature data, event type, and disaster level parameter into the trained neural network model to obtain the propagation attenuation model of the communication signal; it can also adopt the help of electromagnetic simulation software, construct an accurate electromagnetic environment model according to geographical feature data, perform parametric settings on the influencing factors of communication signal propagation in combination with the event type and disaster level parameter, and simulate and generate a propagation attenuation model.

[0046] The attenuation value can be a quantitative index used to measure the degree of signal strength attenuation during the propagation of a communication signal. The preset attenuation threshold can be a benchmark value set in advance to determine whether the attenuation degree of the communication signal reaches a level that affects normal communication. When the attenuation value at a certain geographical location in the propagation attenuation model exceeds the preset attenuation threshold, it is considered that the communication signal at this geographical location is severely affected and may not be able to communicate normally; the continuous area where the attenuation value in the propagation attenuation model exceeds the preset attenuation threshold is determined as the communication affected area, that is, the geographical location that is considered likely to be unable to communicate normally is determined as the communication affected area.

[0047] The advantage of this solution is that by generating a propagation attenuation model of the communication signal based on the geographical feature data, event type, and disaster level parameters of the occurrence location of the emergency event, and determining the continuous area where the attenuation value in the propagation attenuation model exceeds the preset attenuation threshold as the communication affected area, the affected range of communication can be accurately located, providing a reliable basis for subsequent targeted allocation of emergency communication resources, and greatly improving the efficiency and accuracy of the construction of the emergency communication network.

[0048] S102, determine the target satellite and the setting method of the aerial communication layer according to the communication affected area, and the setting positions of at least one temporary base station in the aerial communication layer; wherein, the temporary base station includes a drone temporary base station and / or an unmanned airship temporary base station;

[0049] The target satellite can refer to a satellite selected to provide communication services for the communication affected area in the current emergency communication scenario. The types of target satellites can include Tiantong satellites and Beidou satellites. Specifically, Tiantong satellites and Beidou satellites are two different types of satellite systems respectively.

[0050] The method of determining the target satellite according to the communication affected area can be to obtain the orbital information and signal power information of each connectable satellite, determine the residence duration of each connectable satellite according to the communication affected area, orbital information, and signal power information, and determine the connectable satellite with the longest residence duration as the target satellite.

[0051] The aerial communication layer can refer to a communication architecture or platform constructed in the air to provide communication services in special situations (such as when ground communication facilities are damaged or unable to meet the requirements). The aerial communication layer can be composed of at least one temporary base station; the temporary base station can be a communication base station temporarily set up to cope with emergencies, used to enhance or restore communication signals in a specific area, and the types of temporary base stations can include drone temporary base stations and unmanned airship temporary base stations, etc.; the drone temporary base station can refer to a temporary communication base station with a drone as the carrying platform, and the unmanned airship temporary base station can refer to a temporary communication base station built based on an unmanned airship.

[0052] The setting method of the air communication layer may refer to information such as different altitude level divisions in the air communication layer, corresponding temporary base station configurations, and cooperation mechanisms between layers. The method of determining the setting method of the air communication layer and the setting positions of at least one temporary base station in the air communication layer can be to determine the coverage area and terrain complexity parameters of the communication impact area, determine the setting method of the air communication layer according to the coverage area and terrain complexity parameters, determine the setting interval of the temporary base station according to the coverage area, and determine the setting positions of at least one temporary base station in the air communication layer according to the communication impact area and the setting interval.

[0053] S103, evaluate the satellite communication demand and temporary base station communication demand in the communication impact area;

[0054] The satellite communication demand may refer to the number of communication requests that may be sent to the satellite within the communication impact area; the temporary base station communication demand may refer to the number of communication requests that may be sent to the temporary base station within the communication impact area.

[0055] The method of evaluating the satellite communication demand and temporary base station communication demand in the communication impact area can be to obtain the event type and disaster level parameters of the emergency event, obtain the population density information within the communication impact area, determine the evaluation scores corresponding to the event type, disaster level parameters, and population density information respectively, and perform a weighted sum calculation on each evaluation score to obtain the total sum of the satellite communication demand and temporary base station communication demand. Finally, determine the satellite communication demand and temporary base station communication demand according to the total sum and the preset allocation ratio of satellite communication and temporary base station communication.

[0056] S104, perform communication access control on the target satellite according to the satellite communication demand, and determine the number of temporary base stations according to the temporary base station communication demand; wherein, the types of the target satellites include Tiantong satellites and Beidou satellites;

[0057] The method of performing communication access control on the target satellite according to the satellite communication demand can be to obtain the historical average load and the pre-allocated emergency communication capacity of the target satellite, and predict the emergency communication load ratio of the target satellite according to the satellite communication demand, historical average load, and pre-allocated emergency communication capacity, and determine the communication access control strategy of the target satellite according to the emergency communication load ratio.

[0058] According to the communication demand of the temporary base station, the method for determining the number of temporary base stations to be set can be to calculate the communication traffic that each temporary base station can carry based on the technical parameters of the temporary base station (such as the maximum communication capacity, the coverage radius, and the number of concurrent connections, etc.), and calculate the ratio of the communication demand of the temporary base station to the communication traffic as the number of temporary base stations to be set.

[0059] S105, Provide a communication connection to the communication affected area based on the target satellite and the temporary base station to construct the communication network of the communication affected area.

[0060] The method for providing a communication connection to the communication affected area based on the target satellite and the temporary base station to construct the communication network of the communication affected area can be to provide a communication connection to the communication affected area based on the target satellite according to the communication access control strategy of the target satellite as described above, and provide a communication connection to the communication affected area based on the temporary base station with the maximum signal transmission power to construct the communication network of the communication affected area.

[0061] In the embodiment of the present application, after an emergency occurs, obtain the occurrence location of the emergency, and determine the communication affected area according to the occurrence location; determine the target satellite and the setting method of the aerial communication layer according to the communication affected area, and the setting location of at least one temporary base station in the aerial communication layer; wherein, the temporary base station includes an unmanned aerial vehicle temporary base station and / or an unmanned airship temporary base station; evaluate the satellite communication demand and the temporary base station communication demand in the communication affected area; perform communication access control on the target satellite according to the satellite communication demand, and, according to the temporary base station communication demand, determine the number of temporary base stations to be set; wherein, the type of the target satellite includes a Tiantong satellite and a Beidou satellite; provide a communication connection to the communication affected area based on the target satellite and the temporary base station to construct the communication network of the communication affected area. The above method for constructing a communication network for coping with emergencies can determine the communication affected area according to the occurrence location of the emergency, and determine the relevant communication settings of the target satellite and the temporary base station according to the communication affected area to construct the communication network of the communication affected area, so as to achieve the balance of communication resources and fast communication connection in the communication affected area in an emergency, and improve the emergency response speed and processing efficiency.

[0062] Embodiment 2

[0063] Figure 2It is a schematic flowchart of a communication network construction method for dealing with emergencies provided in the second embodiment of the present application. This solution makes a better improvement to the above embodiment. The specific improvement is as follows: perform communication access control on the target satellite according to the satellite communication demand, including: obtaining the historical average load of the target satellite and the pre-allocated emergency communication capacity, and predicting the emergency communication load ratio of the target satellite according to the satellite communication demand, the historical average load, and the pre-allocated emergency communication capacity; determining the communication access control strategy of the target satellite according to the emergency communication load ratio.

[0064] As Figure 2 shown, it specifically includes the following steps:

[0065] S201, after an emergency occurs, obtain the occurrence location of the emergency, and determine the communication impact area according to the occurrence location;

[0066] S202, determine the setting method of the target satellite and the aerial communication layer according to the communication impact area, and the setting location of at least one temporary base station in the aerial communication layer; wherein, the temporary base station includes an unmanned aerial vehicle temporary base station and / or an unmanned airship temporary base station;

[0067] S203, evaluate the satellite communication demand and the temporary base station communication demand in the communication impact area;

[0068] S204, obtain the historical average load of the target satellite and the pre-allocated emergency communication capacity, and predict the emergency communication load ratio of the target satellite according to the satellite communication demand, the historical average load, and the pre-allocated emergency communication capacity; wherein, the types of the target satellite include Tian Tong satellite and Beidou satellite;

[0069] The historical average load of the target satellite may refer to the number of communication requests received by the target satellite per unit time before the current time point. By analyzing the communication service data of the target satellite in the past period recorded in the satellite operation management system, the historical average load of the target satellite can be obtained.

[0070] The pre-allocated emergency communication capacity may refer to the amount of communication resources reserved in advance for the target satellite in the emergency communication plan to deal with possible emergencies. By referring to the communication resource configuration reserved for the target satellite in different emergency scenarios clearly stipulated in the satellite emergency communication plan document, the pre-allocated emergency communication capacity can be obtained.

[0071] The emergency communication load ratio of the target satellite may refer to the ratio of the communication load that the target satellite can handle for communication requests related to emergency events to its total capacity. According to the satellite communication demand, historical average load, and pre-allocated emergency communication capacity, the method for predicting the emergency communication load ratio of the target satellite can be to perform a weighted sum calculation on the satellite communication demand, historical average load, and pre-allocated emergency communication capacity according to the first preset weight to obtain the emergency communication load ratio of the target satellite. Among them, the sum of the first preset weights corresponding to the satellite communication demand, historical average load, and pre-allocated emergency communication capacity is 1, and the first preset weights corresponding to the satellite communication demand, historical average load, and pre-allocated emergency communication capacity can be 0.6, 0.2, and 0.2 respectively.

[0072] S205. Determine the communication access control policy of the target satellite according to the emergency communication load ratio;

[0073] The method for determining the communication access control policy of the target satellite according to the emergency communication load ratio can be to determine that the communication access control policy of the target satellite is to allow all communication requests to access when the emergency communication load ratio is less than the first preset ratio; to determine that the communication access control policy of the target satellite is to only allow high-priority communication requests to access when the emergency communication load ratio exceeds the second preset ratio; and when the emergency communication load ratio exceeds the first preset ratio and is less than the second preset ratio, determine the bandwidth allocation ratio of communication requests of each priority according to the preset dynamic adjustment parameters of communication requests of each priority and the emergency communication load ratio, and determine that the communication access control policy of the target satellite is to access communication requests according to the bandwidth allocation ratio.

[0074] In this technical solution, optionally, determining the communication access control policy of the target satellite according to the emergency communication load ratio includes:

[0075] When the emergency communication load ratio is less than the first preset ratio, determine that the communication access control policy of the target satellite is to allow all communication requests to access;

[0076] Or,

[0077] When the emergency communication load ratio exceeds the second preset ratio, determine that the communication access control policy of the target satellite is to only allow high-priority communication requests to access; where the high-priority communication requests include emergency command requests and first aid requests.

[0078] The first preset ratio can be a preset limit value for judging that the emergency communication load of the target satellite is relatively light, such as 50%. If the emergency communication load ratio is less than the first preset ratio, it means that the communication resources of the target satellite are relatively abundant and have sufficient capacity to handle various communication requests. Therefore, the communication access control strategy of the target satellite can be determined as allowing all communication requests to access. Allowing all communication requests to access means that regardless of the service type and priority of the request, they are given the right to access the satellite communication system.

[0079] The second preset ratio can be a pre-set limit value for judging whether the target satellite emergency communication load is too heavy, such as 80%. If the emergency communication load ratio exceeds the second preset ratio, it means that the communication resources of the target satellite are close to saturation or even overloaded, and it is difficult to meet all communication requests. Therefore, the communication access control strategy of the target satellite can be determined to allow only high-priority communication requests to access. Only high-priority communication requests are allowed to access, that is, only emergency command requests and first aid requests that are critical to the entire emergency treatment are approved to access the satellite communication system, while other communication requests with lower priorities are temporarily rejected. Among them, in the context of communication requests, priority is used to determine the order of different requests when competing for limited communication resources; high-priority communication requests can refer to communication requests that are at a higher level in all priority levels, such as emergency command requests and first aid requests; emergency command requests can refer to communication requests issued after an emergency occurs to coordinate, organize and command emergency rescue operations, and first aid requests can refer to communication requests related to medical first aid.

[0080] The benefit of setting up this scheme is that by determining the communication access control policy of the target satellite to allow all communication requests to access when the emergency communication load ratio is less than the first preset ratio, or by determining the communication access control policy of the target satellite to allow only high-priority communication requests to access when the emergency communication load ratio exceeds the second preset ratio, resources can be flexibly allocated according to the real-time communication load of the satellite, which can fully meet various communication needs when resources are abundant, and ensure the efficient development of key emergency services when resources are tight, thereby significantly improving the overall efficiency and reliability of the emergency communication system.

[0081] In the technical solution, optionally, determining the communication access control strategy of the target satellite according to the emergency communication load ratio further includes:

[0082] When the emergency communication load ratio exceeds the first preset ratio and is less than the second preset ratio, determining the bandwidth allocation ratio of the communication requests of each priority level according to the preset dynamic adjustment parameters of the communication requests of each priority level and the emergency communication load ratio;

[0083] Determine the communication access control strategy of the target satellite to access the communication request according to the bandwidth allocation ratio.

[0084] The preset dynamic adjustment parameters may be a set of parameters pre-set for communication requests of different priorities. The bandwidth allocation ratio may refer to the proportion of the share of communication requests of each priority in the total bandwidth of satellite communication. According to the preset dynamic adjustment parameters of the communication requests of each priority and the emergency communication load ratio, the bandwidth allocation ratio of the communication requests of each priority is determined. The emergency communication load ratio may be used as the bandwidth allocation ratio of the high-priority communication requests (such as emergency command requests and first aid requests), and the difference between 1 and the emergency communication load ratio is calculated. The preset dynamic adjustment parameter of the communication request of one priority is divided by the sum of the preset dynamic adjustment parameters of the communication requests of each priority and multiplied by the difference to obtain the bandwidth allocation ratio of the communication request of the priority.

[0085] If the emergency communication load ratio exceeds the first preset ratio and is less than the second preset ratio, it means that the communication resources of the target satellite are in a moderately tense state. Although it has not reached saturation, it is unable to meet all communication requests indiscriminately. Therefore, the communication access control strategy of the target satellite can be determined as accessing communication requests according to the bandwidth allocation ratio. Accessing communication requests according to the bandwidth allocation ratio means allocating a corresponding share of satellite communication bandwidth resources to each communication request based on the bandwidth allocation ratio calculated according to communication requests of different priorities.

[0086] The benefit of this arrangement of the present scheme is that, by determining the bandwidth allocation ratio of communication requests of each priority level according to the preset dynamic adjustment parameters of the communication requests of each priority level and the emergency communication load ratio when the emergency communication load ratio exceeds the first preset ratio and is less than the second preset ratio, and determining the communication access control strategy of the target satellite to access the communication requests according to the bandwidth allocation ratio, it is possible to achieve refined management of satellite communication resources, while ensuring the quality of emergency business communications, taking into account other business needs as much as possible, and improving the overall performance and stability of the emergency communication system under complex load conditions.

[0087] S206, determining the number of temporary base stations to be set according to the communication demand of the temporary base station;

[0088] S207: providing a communication connection to the communication influence area based on the target satellite and the temporary base station to build a communication network in the communication influence area.

[0089] The advantage of this solution is that by predicting the emergency communication load ratio of the target satellite based on the satellite communication demand, the historical average load of the target satellite, and the pre-allocated emergency communication capacity, and determining the communication access control strategy of the target satellite according to the emergency communication load ratio, satellite communication resources can be reasonably allocated, the efficiency and stability of emergency communication can be improved, and various emergency services can be effectively supported under different load conditions.

[0090] Embodiment 3

[0091] Figure 3 It is a schematic flowchart of a method for constructing a communication network to cope with emergencies provided in Embodiment 3 of the present application. This solution makes a better improvement to the above embodiments. The specific improvement is: determining the setting method of the air communication layer and the setting position of at least one temporary base station in the air communication layer according to the communication impact area, including: determining the coverage area and terrain complexity parameters of the communication impact area; determining the setting method of the air communication layer according to the coverage area and the terrain complexity parameters; wherein, the setting method includes a low-altitude communication layer and / or a medium-altitude communication layer; determining the setting interval of the temporary base station according to the coverage area, and determining the setting position of at least one temporary base station in the air communication layer according to the communication impact area and the setting interval.

[0092] As Figure 3 shown, it specifically includes the following steps:

[0093] S301, after an emergency occurs, obtain the occurrence location of the emergency and determine the communication impact area according to the occurrence location;

[0094] S302, determine the coverage area and terrain complexity parameters of the communication impact area;

[0095] The coverage area of the communication impact area may refer to the area size of the communication impact area. The coverage area of the communication impact area can be directly calculated according to the geographical location of the communication impact area.

[0096] The terrain complexity parameter of the communication affected area can be a parameter used to describe the complexity of the terrain features within the communication affected area. Different terrain complexities will have different impacts on the propagation of communication signals, and will also affect the setting of the aerial communication layer and the deployment of temporary base stations. For example, in mountainous areas and other areas with complex terrain, more temporary base stations may be required to ensure communication coverage, while in plain areas, the number of temporary base stations can be relatively reduced. The terrain complexity parameter of the communication affected area can be evaluated based on the geographical feature data within the communication affected area. For example, the elevation standard deviation, building density, and vegetation coverage rate of the communication affected area are determined according to the geographical feature data within the communication affected area, and the elevation standard deviation, building density, and vegetation coverage rate are weighted and summed to obtain the terrain complexity parameter of the communication affected area.

[0097] S303. Determine the setting method of the aerial communication layer according to the coverage area and the terrain complexity parameter; wherein, the setting method includes a low-altitude communication layer and / or a mid-altitude communication layer;

[0098] The low-altitude communication layer can refer to an aerial communication layer set in a relatively low altitude range, and the low-altitude communication layer generally includes unmanned aerial vehicle (UAV) temporary base stations; the mid-altitude communication layer can refer to an aerial communication layer set in the altitude range above the low-altitude communication layer, and the mid-altitude communication layer generally includes unmanned airship temporary base stations.

[0099] The method of determining the setting method of the aerial communication layer according to the coverage area and the terrain complexity parameter can be: obtain the available setting quantity and the coverage radius of the UAV temporary base stations, and determine a first preset threshold according to the available setting quantity and the coverage radius; when the coverage area is less than the first preset threshold and the terrain complexity parameter is less than the second preset threshold, determine that the setting method of the aerial communication layer is the low-altitude communication layer; when the coverage area exceeds the first preset threshold and the terrain complexity parameter exceeds the second preset threshold, determine that the setting method of the aerial communication layer is the mid-altitude communication layer; in other cases, determine that the setting method of the aerial communication layer is to use both the low-altitude communication layer and the mid-altitude communication layer.

[0100] In this technical solution, optionally, determining the setting method of the aerial communication layer according to the coverage area and the terrain complexity parameter includes:

[0101] Obtain the available setting quantity and the coverage radius of the UAV temporary base stations, and determine a first preset threshold according to the available setting quantity and the coverage radius;

[0102] When the coverage area is less than the first preset threshold and the terrain complexity parameter is less than the second preset threshold, determine that the setting method of the aerial communication layer is the low-altitude communication layer; wherein, the second preset threshold is determined based on the statistical data of historical terrain complexity parameters and historical setting methods;

[0103] Or,

[0104] When the covered area exceeds a first preset threshold and the terrain complexity parameter exceeds a second preset threshold, determine that the setting mode of the air communication layer is a mid-air communication layer;

[0105] Or,

[0106] In other cases, determine that the setting mode of the air communication layer is to use both a low-altitude communication layer and a mid-air communication layer.

[0107] The number of UAV temporary base stations that can be set can refer to the maximum number of UAV temporary base stations that can be actually set within the communication influence area. The coverage radius of a UAV temporary base station can refer to the radius of the circular area that the communication signal of a single UAV temporary base station can effectively cover under normal working conditions. The method for obtaining the number of UAV temporary base stations that can be set and the coverage radius can be to query a pre-established device resource database, obtain the number of currently available UAV temporary base stations as the number that can be set, and determine its coverage radius based on the test data of this type of UAV temporary base station in a standard environment.

[0108] The first preset threshold can be the area that can be effectively covered by UAV temporary base stations under a certain number and coverage ability, calculated based on the number of UAV temporary base stations that can be set and the coverage radius. The second preset threshold can be the demarcation value of the terrain complexity parameter for judging whether the current situation is suitable for a certain setting mode of the air communication layer; the second preset threshold can be statistically determined based on historical terrain complexity parameters and historical setting modes.

[0109] Since the low-altitude communication layer has the characteristics of strong mobility and flexible deployment, and can quickly perform effective communication coverage for a small area with relatively simple terrain. In this scenario, using the low-altitude communication layer can not only meet the communication requirements but also efficiently utilize resources, avoiding waste caused by adopting a complex and costly communication layer setting. Therefore, when the covered area is less than the first preset threshold and the terrain complexity parameter is less than the second preset threshold, determine that the setting mode of the air communication layer is a low-altitude communication layer.

[0110] The mid-air communication layer has the advantage of a large communication coverage range, can effectively meet the communication requirements of a large area, and its relatively stable signal transmission characteristics can overcome multiple interferences of complex terrain on signal propagation. Therefore, when the covered area exceeds the first preset threshold and the terrain complexity parameter exceeds the second preset threshold, determine that the setting mode of the air communication layer is a mid-air communication layer.

[0111] In other cases, that is, when there is a diverse combination of the coverage area and the terrain complexity parameter, and a single low-altitude communication layer or medium-altitude communication layer is difficult to fully meet the communication requirements, the setting method of the air communication layer can be determined as the combined use of the low-altitude communication layer and the medium-altitude communication layer.

[0112] The advantage of this solution is that by determining the first preset threshold according to the number of settable UAV temporary base stations and the coverage radius, and determining the setting method of the air communication layer according to the coverage area of the communication influence area, the first preset threshold, and the terrain complexity parameter and the second preset threshold, the air temporary base station resources can be accurately and efficiently allocated.

[0113] S304. Determine the setting interval of the temporary base station according to the coverage area, and determine the setting position of at least one temporary base station in the air communication layer according to the communication influence area and the setting interval; wherein, the temporary base station includes a UAV temporary base station and / or an unmanned airship temporary base station;

[0114] The setting interval of the temporary base station can refer to the interval distance between two adjacent temporary base stations. The method of determining the setting interval of the temporary base station according to the coverage area can be to perform a square root calculation on the coverage area and multiply the result of the square root calculation by a preset coefficient to obtain the setting interval of the temporary base station. Among them, the preset coefficient can be set according to the coverage radius of the temporary base station, for example, 0.8.

[0115] The method of determining the setting position of at least one temporary base station in the air communication layer according to the communication influence area and the setting interval can be to evenly distribute the setting positions of the temporary base stations in the communication influence area according to the setting interval.

[0116] S305. Evaluate the satellite communication demand and the temporary base station communication demand in the communication influence area;

[0117] S306. Perform communication access control on the target satellite according to the satellite communication demand, and determine the number of set temporary base stations according to the temporary base station communication demand; wherein, the types of the target satellites include Tian Tong satellites and Beidou satellites;

[0118] S307. Provide a communication connection to the communication influence area based on the target satellite and the temporary base station to construct a communication network for the communication influence area.

[0119] The advantage of this solution is that by determining the setting method of the air communication layer according to the coverage area of the communication influence area and the terrain complexity parameter, determining the setting interval of the temporary base station according to the coverage area, and determining the setting position of at least one temporary base station in the air communication layer according to the communication influence area and the setting interval, the low-altitude and medium-altitude communication layers can be reasonably planned based on the coverage area and the terrain complexity parameter, which can not only ensure the basic communication coverage of a large area, but also perform refined signal enhancement for complex terrain areas.

[0120] Embodiment 4

[0121] Figure 4 It is a schematic structural diagram of a communication network construction device for dealing with emergency events provided by Embodiment 4 of the present application. As Figure 4 shown, the device includes:

[0122] An impact area determination module 410, configured to obtain the occurrence location of the emergency event after the emergency event occurs, and determine the communication impact area according to the occurrence location;

[0123] A method position determination module 420, configured to determine the target satellite and the setting method of the air communication layer, and the setting position of at least one temporary base station in the air communication layer according to the communication impact area; wherein, the temporary base station includes an unmanned aerial vehicle temporary base station and / or an unmanned airship temporary base station;

[0124] A demand determination module 430, configured to evaluate the satellite communication demand and the temporary base station communication demand in the communication impact area;

[0125] An access control module 440, configured to perform communication access control on the target satellite according to the satellite communication demand, and determine the number of temporary base stations to be set according to the temporary base station communication demand; wherein, the types of the target satellites include Tiantong satellites and Beidou satellites;

[0126] A communication network construction module 450, configured to provide a communication connection to the communication impact area based on the target satellite and the temporary base station to construct a communication network for the communication impact area.

[0127] In the embodiment of the present application, an impact area determination module is configured to, after an emergency occurs, obtain the occurrence location of the emergency and determine a communication impact area according to the occurrence location; a method location determination module is configured to determine a target satellite and a setting method of an air communication layer, and a setting location of at least one temporary base station in the air communication layer according to the communication impact area; wherein, the temporary base station includes a drone temporary base station and / or an unmanned airship temporary base station; a demand determination module is configured to evaluate the satellite communication demand and the temporary base station communication demand in the communication impact area; an access control module is configured to perform communication access control on the target satellite according to the satellite communication demand, and determine the number of temporary base stations to be set according to the temporary base station communication demand; wherein, the types of the target satellites include Tiantong satellites and Beidou satellites; a communication network construction module is configured to provide a communication connection to the communication impact area based on the target satellite and the temporary base station to construct a communication network for the communication impact area. The above communication network construction device for coping with emergencies can determine the communication impact area according to the occurrence location of the emergency, and determine the relevant communication settings of the target satellite and the temporary base station according to the communication impact area to construct a communication network for the communication impact area, so as to achieve communication resource balance and fast communication connection in the communication affected area in an emergency, and improve the emergency response speed and processing efficiency.

[0128] The communication network construction device for coping with emergencies in the embodiment of the present application can be a device, or a component, an integrated circuit, or a chip in a terminal. The device can be a mobile terminal device or a non-mobile terminal device. Exemplarily, the mobile terminal device can be a mobile phone, a tablet computer, a laptop computer, a handheld computer, a vehicle-mounted terminal device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc., and the non-mobile terminal device can be a server, a Network Attached Storage (NAS), a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc., and the embodiment of the present application does not make specific limitations.

[0129] The communication network construction device for coping with emergencies in the embodiment of the present application can be a device with an operating system. The operating system can be an Android operating system, an IOS operating system, or other possible operating systems, and the embodiment of the present application does not make specific limitations.

[0130] The communication network construction device for dealing with emergencies provided by the embodiments of the present application can implement the various processes achieved in the above-mentioned Embodiments 1 to 3. To avoid repetition, it will not be elaborated here.

[0131] Embodiment 5

[0132] As Figure 5 shown, the embodiments of the present application further provide a terminal device 500, including a processor 501, a memory 502, and a program or instruction stored on the memory 502 and executable on the processor 501. When the program or instruction is executed by the processor 501, it implements the various processes of the above-mentioned embodiment of the communication network construction method for dealing with emergencies and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0133] Embodiment 6

[0134] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements the various processes of the above-mentioned embodiment of the communication network construction method for dealing with emergencies and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0135] Among them, the processor is the processor in the terminal device described in the above embodiment. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disc, etc.

[0136] Embodiment 7

[0137] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the various processes of the above-mentioned embodiment of the communication network construction method for dealing with emergencies and can achieve the same technical effects. To avoid repetition, it will not be elaborated here.

[0138] It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0139] It should be noted that in this text, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0140] From the description of the above embodiments, those skilled in the art can clearly understand that the above-described example methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc), including several instructions for causing a terminal (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

[0141] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

[0142] The above is only the preferred embodiment of the present application and the technical principles applied. The present application is not limited to the specific embodiments described herein. Various obvious changes, re-adjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments. Without departing from the concept of the present application, it may also include more other equivalent embodiments, and the scope of the present application is determined by the scope of the claims.

Claims

1. A method for constructing a communication network to cope with emergencies, characterized in that: The method comprises: After an emergency event occurs, obtaining the location of the emergency event, and determining a communication impact area according to the location of the emergency event; Determine the setting mode of the target satellite and the air communication layer according to the communication impact area, and the setting position of at least one temporary base station in the air communication layer; wherein the temporary base station includes a temporary base station for a drone and / or a temporary base station for an unmanned airship; Assessing the satellite communication demand and temporary base station communication demand in the communication impact area; Performing communication access control on the target satellite according to the satellite communication demand, and determining the number of temporary base stations to be set according to the temporary base station communication demand; wherein the types of the target satellites include Tiantong satellites and Beidou satellites; A communication connection is provided to the communication influence area based on the target satellite and the temporary base station to construct a communication network in the communication influence area.

2. The method for constructing a communication network for responding to emergencies according to claim 1, characterized in that: The method further comprises: performing communication access control on the target satellite according to the satellite communication demand, comprising: Obtaining the historical average load and the pre-allocated emergency communication capacity of the target satellite, and predicting the emergency communication load ratio of the target satellite according to the satellite communication demand, the historical average load and the pre-allocated emergency communication capacity; A communication access control strategy for the target satellite is determined according to the emergency communication load ratio.

3. The method for constructing a communication network for responding to emergencies according to claim 2, characterized in that: Determining a communication access control strategy for the target satellite according to the emergency communication load ratio includes: When the emergency communication load ratio is less than a first preset ratio, determining the communication access control strategy of the target satellite to allow all communication requests to access; or, When the emergency communication load ratio exceeds a second preset ratio, the communication access control strategy of the target satellite is determined to allow only high-priority communication requests to access; wherein the high-priority communication requests include emergency command requests and first aid requests.

4. The method for constructing a communication network for responding to emergencies according to claim 3, characterized in that: Determining the communication access control strategy of the target satellite according to the emergency communication load ratio also includes: When the emergency communication load ratio exceeds the first preset ratio and is less than the second preset ratio, determining the bandwidth allocation ratio of the communication requests of each priority level according to the preset dynamic adjustment parameters of the communication requests of each priority level and the emergency communication load ratio; Determine the communication access control strategy of the target satellite to access the communication request according to the bandwidth allocation ratio.

5. The method for constructing a communication network for responding to emergencies according to claim 1, characterized in that: Obtaining the location of the emergency event, and determining the communication impact area according to the location of the emergency event, including: Obtaining geographic feature data of the location where the emergency event occurs, event type, and disaster level parameters; Generate a communication signal propagation attenuation model according to the geographic feature data, the event type and the disaster level parameter; A continuous area in which the attenuation value in the propagation attenuation model exceeds a preset attenuation threshold is determined as a communication impact area.

6. The method for constructing a communication network for responding to emergencies according to claim 1, characterized in that: Determining a setting mode of an air communication layer and a setting position of at least one temporary base station in the air communication layer according to the communication impact area includes: Determining the coverage area and terrain complexity parameters of the communication impact area; Determine the setting mode of the aerial communication layer according to the coverage area and the terrain complexity parameter; wherein the setting mode includes a low-altitude communication layer and / or a mid-altitude communication layer; The setting interval of the temporary base station is determined according to the coverage area, and the setting position of at least one temporary base station in the air communication layer is determined according to the communication impact area and the setting interval.

7. The method for constructing a communication network for responding to emergencies according to claim 6, characterized in that: According to the coverage area and the terrain complexity parameter, determining a setting mode of the air communication layer includes: Obtaining a configurable number and a coverable radius of a temporary base station for a drone, and determining a first preset threshold value according to the configurable number and the coverable radius; When the coverage area is less than a first preset threshold and the terrain complexity parameter is less than a second preset threshold, determining that the setting mode of the air communication layer is a low-altitude communication layer; wherein the second preset threshold is determined based on historical terrain complexity parameters and historical setting mode statistics; or, When the coverage area exceeds a first preset threshold and the terrain complexity parameter exceeds a second preset threshold, determining that the setting mode of the air communication layer is a hollow communication layer; or, In other cases, the setting method of determining the air communication layer is to use both the low-altitude communication layer and the mid-altitude communication layer.

8. A communication network construction device for responding to emergencies, characterized in that: The device comprises: An impact area determination module is used to obtain the location of the emergency event after the emergency event occurs, and determine the communication impact area according to the location of the emergency event; A mode and position determination module, used to determine the setting mode of the target satellite and the air communication layer according to the communication influence area, and the setting position of at least one temporary base station in the air communication layer; wherein the temporary base station includes a temporary base station for a drone and / or a temporary base station for an unmanned airship; A demand determination module, used to evaluate the satellite communication demand and the temporary base station communication demand in the communication impact area; An access control module is used to perform communication access control on the target satellite according to the satellite communication demand, and determine the number of temporary base stations to be set according to the temporary base station communication demand; wherein the types of the target satellites include Tiantong satellites and Beidou satellites; A communication network construction module is used to provide a communication connection to the communication influence area based on the target satellite and the temporary base station to construct a communication network in the communication influence area.

9. A terminal device, characterized in that: The invention comprises a processor, a memory and a program or instruction stored in the memory and executable on the processor, wherein the program or instruction, when executed by the processor, implements the steps of the method for constructing a communication network for responding to emergencies as described in any one of claims 1 to 7.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the method for constructing a communication network for responding to emergencies as described in any one of claims 1 to 7 are implemented.

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