Emergency scene communication method and communication system based on end-to-end technology

Abstract

The invention discloses a communication method and a communication system for an emergency scene based on an end-to-end technology, relates to the technical field of communication, and is characterized in that a multi-stage communication network consisting of a first-stage service unit, a second-stage network node and a plurality of third-stage network nodes is constructed; and by virtue of the advantages that the end-to-end ad hoc network has no single control node and the structure can be changed at any time, the wireless communication range of the second-level network node and the third-level network node is expanded, and the communication coverage of the whole disaster area in a large-area disaster scene is ensured. The end-to-end ad hoc network improves the structural flexibility of the second-level network nodes and the third-level network nodes, so that the structures of the second-level network nodes and the third-level network nodes can change along with the change of the positions of the victims, and people moving scenes such as evacuation of the victims and the like can be dealt with more flexibly; and smooth communication in the moving process of the personnel is ensured.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and more specifically, to a communication method and a communication system for emergency scenarios based on end-to-end technology. Background Art

[0002] At present, public networks or base station cluster private networks are generally used to achieve emergency communication purposes. However, when natural disasters occur, public network base stations are prone to paralysis, and the dedicated optical fiber of the cluster private network is easily damaged, which leads to the paralysis of the entire emergency communication. The traditional emergency private network system cannot grasp the location of rescue personnel in real time and conduct effective dispatch, which greatly delays the rescue time, causing property losses and even the cost of life.

[0003] Chinese patent CN216087027U provides a smart city emergency private network system, which includes a multi-level dispatching base station and a plurality of first intercom terminals, wherein the multi-level dispatching base station includes a first-level dispatching base station and at least one second-level dispatching base station; wherein: the first-level dispatching base station establishes a wireless / wired two-way communication link with at least one second-level dispatching base station, so as to manage the second-level dispatching base station under the dispatching in real time and receive the location information reported by the plurality of first intercom terminals under the dispatching base station; the second-level dispatching base station respectively establishes a wireless / wired two-way communication link with the plurality of first intercom terminals, so as to manage the first intercom terminals under the dispatching in real time and receive the location information reported by the first intercom terminals; and each of the second-level dispatching base stations respectively establishes a wireless / wired two-way communication link for communication; the first intercom terminals under each of the second-level dispatching base stations communicate through the wireless / wired two-way communication link established by the corresponding second-level dispatching base station.

[0004] The system builds an emergency communication network capable of long-distance real-time coordination and dispatching of personnel through multi-level two-way communication between the first-level dispatch base station, the second-level dispatch base station and the first intercom terminal, two-way communication between multiple second-level dispatch base stations, and two-way communication between multiple first intercom terminals, without the need for basic facilities such as base stations.

[0005] However, in scenarios where disaster victims are on the move, such as when being guided and evacuated, wired communication is difficult to implement. In wireless communication, the activity range of the second-level dispatching base station is restricted by the location of the first-level dispatching base station, and the activity range of the first intercom terminal is restricted by the location of the second-level dispatching base station. This limits the communication distance and makes it difficult to achieve communication coverage of the entire disaster-stricken area in scenarios where a large area is affected. Summary of the invention

[0006] In view of the problem in the prior art that when personnel are in a mobile state, the activity range of the second-level dispatching base station is limited by the position of the first-level dispatching base station, and the activity range of the first intercom terminal is limited by the position of the second-level dispatching base station, resulting in limited communication distance, and it is difficult to achieve communication coverage of the entire disaster area in a large-area disaster scene, the purpose of the present invention is to provide a communication method for emergency scenarios based on end-to-end technology, which includes a primary service unit, a secondary service unit and a user terminal. The primary service unit, the secondary service unit and the user terminal all have a wireless communication module.

[0007] One first-level service unit is set, and the position of the first-level service unit is fixed.

[0008] A plurality of secondary service units are provided, and the secondary service units are in a mobile state or a stationary state, and all the secondary service units form an end-to-end self-organizing network to realize data mutual transmission.

[0009] All secondary service units act as secondary network nodes, and the primary service units communicate bidirectionally with the secondary network nodes wirelessly: at least one secondary service unit in a mobile state moves back and forth between the wireless communication range of the secondary network node and the wireless communication range of the primary service unit, or the wireless communication range of at least one secondary service unit in a stationary state overlaps with the wireless communication range of the secondary network node and the wireless communication range of the primary service unit at the same time.

[0010] Multiple user terminals are provided, and the user terminals are in a mobile state or a stationary state. Each user terminal detects in real time whether there are other user terminals within its wireless communication range. When there are other user terminals within its wireless communication range, it forms an end-to-end ad hoc network with other user terminals within its wireless communication range to realize data transmission. The end-to-end ad hoc network formed by user terminals is a three-level network node, and a user terminal without other user terminals within its wireless communication range is also a three-level network node. There is at least one three-level network node.

[0011] Bidirectional wireless communication between the secondary network node and all the tertiary network nodes: Each tertiary network node corresponds to a secondary service unit. When the secondary service unit corresponding to the tertiary network node is in a mobile state, the secondary service unit moves back and forth between the wireless communication range of the secondary network node and the wireless communication range of all the tertiary network nodes corresponding to it. When the secondary service unit corresponding to the tertiary network node is in a stationary state, the wireless communication range of the secondary service unit overlaps with the wireless communication range of the secondary network node and the wireless communication range of all the tertiary network nodes corresponding to it.

[0012] The primary service unit configures the moving paths of the secondary service units in all moving states.

[0013] The present invention is further configured as follows: the secondary service unit has a GPS module for feeding back the location of the secondary service unit to the primary service unit. The user terminal has a GPS module for feeding back the location of the user terminal to the primary service unit via the secondary network node.

[0014] The present invention is further configured such that: the secondary service unit has a gyroscope for feeding back angle and motion information of the secondary service unit to the primary service unit.

[0015] The present invention is further configured as follows: the primary service unit, the secondary service unit and the user terminal all have a storage module, and the storage module is used to cache communication data.

[0016] The present invention is further configured such that: the stationary secondary service unit is placed at a predetermined location by a vehicle or manpower, and the mobile secondary service unit is transported back and forth on the path set by the primary service unit by a vehicle or manpower.

[0017] The present invention is further configured as follows: the secondary service unit has a speaker, and the primary service unit controls the opening and closing of all speakers and configures the broadcast content of all speakers.

[0018] The present invention is further configured as follows: the secondary service unit has a first light source module, and the primary service unit controls the switching of all the first light source modules.

[0019] The present invention is further configured as follows: the secondary service unit has a light sensor, the user terminal has a second light source module, the second light source module is used to send an optical distress signal, and the light sensor is used to receive the optical distress signal. When the light sensor of the secondary service unit receives the optical distress signal, the secondary service unit uploads its current position and the direction of the optical distress signal as optical distress information to the primary service unit. The direction of the optical distress signal is determined by the gyroscope and the orientation of the light sensor on the secondary service unit. The primary service unit reconfigures the moving path of at least one mobile secondary service unit according to the optical distress information.

[0020] The present invention is further configured as follows: the first-level service unit stores emergency data for disaster victims to consult and use, and the emergency data includes text, audio, video, and multimedia content. The user terminal sends a network help message to the first-level service unit through the third-level network node and the second-level network node where it is located, and the first-level service unit provides emergency data to the user terminal that sent the network help message based on the network help message.

[0021] The present invention is further configured as follows: both the secondary service unit and the user terminal have a power module, the power module is used to provide power to the electrical components in the secondary service unit and the user terminal, and the power module has a charging function and a power storage function.

[0022] The present invention also provides a communication system for emergency scenarios based on end-to-end technology, which includes a first-level service unit, a second-level service unit and a user terminal recorded in the above method; the first-level service unit, the second-level service unit and the user terminal all have a wireless communication module; one first-level service unit is provided, multiple second-level service units are provided, and multiple user terminals are provided; the first-level service unit, the second-level service unit and the user terminal are used to implement the above-mentioned communication method for emergency scenarios based on end-to-end technology.

[0023] In summary, the present invention has the following beneficial effects compared with the prior art: the present invention constructs a multi-level communication network consisting of a primary service unit, a secondary network node and a plurality of tertiary network nodes, and by virtue of the advantages of the end-to-end self-organizing network having no single control node and the structure being changeable at any time, the wireless communication range of the secondary network nodes and the tertiary network nodes is expanded, and the communication coverage of the entire disaster-affected area in a large-area disaster scenario is guaranteed. Moreover, the end-to-end self-organizing network improves the structural flexibility of the secondary network nodes and the tertiary network nodes, so that the structure of the secondary network nodes and the tertiary network nodes can change with the location of the affected persons, and can more flexibly respond to the scenes of personnel movement such as the evacuation of the affected persons, and ensure smooth communication during the movement of the personnel. The present invention ensures that the primary service unit can obtain the help information from the user terminal in a timely manner during the rescue, and enables the user terminal to obtain the command and dispatch information pushed by the primary service unit and the solutions provided according to the help information in a timely manner, such as emergency plans, guidance for the evacuation of the affected persons, guidance for first aid operations, methods for seeking help, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0025] In the figure: 1, first-level network node; 11, first-level service unit; 2, second-level network node; 21, second-level service unit; 3, third-level network node; 31, user terminal. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the invention.

[0027] The term "end-to-end ad hoc network" refers to a network that is established directly between devices without the need for pre-established infrastructure. This type of network has no single control node, all devices have an equal status in the network, the network structure can be changed at any time, and devices can join or leave the network without affecting the overall communication of the network.

[0028] Example

[0029] like Figure 1 As shown, a preferred embodiment of the present invention provides a communication method for emergency scenarios based on end-to-end technology, which includes a primary service unit 11, a secondary service unit 21 and a user terminal 31. The primary service unit 11, the secondary service unit 21 and the user terminal 31 all have wireless communication modules.

[0030] One primary service unit 11 is provided, and the primary service unit 11 is fixed in position as a primary network node 1 .

[0031] A plurality of secondary service units 21 are provided, and the secondary service units 21 are in a mobile state or a stationary state. Each secondary service unit 21 detects in real time whether there is a secondary service unit 21 with which a communication connection can be established nearby, and builds an end-to-end self-organizing network with the secondary service unit 21 with which a communication connection can be established to form a secondary network node 2. Ultimately, all secondary service units 21 realize data transmission through an end-to-end self-organizing network mode. When some secondary service units 21 are in a mobile state, the number of secondary service units 21 in the secondary network node 2 will change as these secondary service units 21 move.

[0032] There are multiple user terminals 31, and the user terminals 31 are in a mobile state or a stationary state. The user terminal 31 can be a mobile terminal with a wireless communication module held by the disaster victims, such as a mobile phone, a tablet computer, a laptop computer, etc. Each user terminal 31 detects in real time whether there are other user terminals 31 within its own wireless communication range. When there are other user terminals 31 within its own wireless communication range, it forms an end-to-end self-organizing network with other user terminals 31 within its own wireless communication range to realize data transmission. The end-to-end self-organizing network formed by the user terminals 31 is a third-level network node 3, and the user terminal 31 without other user terminals 31 within its own wireless communication range is also a third-level network node 3. There is at least one third-level network node 3.

[0033] All secondary service units 21 act as secondary network nodes 2, and primary service units 11 communicate with secondary network nodes 2 in bidirectional wireless communication:

[0034] At least one secondary service unit 21 in a mobile state moves back and forth between the wireless communication range of the secondary network node 2 and the wireless communication range of the primary service unit 11. Specifically, when a secondary service unit 21 is located within the wireless network connection range of the primary service unit 11, the primary service unit 11 is connected to the secondary service unit 21 by two-way wireless communication. When the secondary service unit 21 leaves the wireless network connection range of the primary service unit 11, the secondary service unit 21 moves to the wireless network connection range of other secondary service units 21 to build a secondary network node 2 with other secondary service units 21 for data transmission.

[0035] Or the wireless communication range of at least one static secondary service unit 21 overlaps with the wireless communication range of the secondary network node 2 and the wireless communication range of the primary service unit 11 to achieve a continuous two-way wireless communication connection between the secondary network node 2 and the primary service unit 11.

[0036] The secondary network node 2 communicates with all the tertiary network nodes 3 in a two-way wireless manner:

[0037] Each third-level network node 3 corresponds to a second-level service unit 21 .

[0038] When the secondary service unit 21 corresponding to the third-level network node 3 is in a mobile state, the secondary service unit 21 moves back and forth between the wireless communication range of the secondary network node 2 and the wireless communication range of all the corresponding third-level network nodes 3. When a secondary service unit 21 is located within the wireless network connection range of the third-level network node 3, a user terminal 31 in the third-level network node 3 is connected to the secondary service unit 21 through two-way wireless communication. After a secondary service unit 21 passes through all the corresponding third-level network nodes 3 in sequence, the secondary service unit 21 will move to the wireless network connection range of other secondary service units 21 to build a secondary network node 2 with other secondary service units 21 for data transmission.

[0039] When the secondary service unit 21 corresponding to the third-level network node 3 is in a static state, the wireless communication range of the secondary service unit 21 overlaps with the wireless communication range of the secondary network node 2 and the wireless communication range of all the corresponding third-level network nodes 3, so as to realize a continuous two-way wireless communication connection between all the third-level network nodes 3 corresponding to the secondary service unit 21 and the secondary network node 2.

[0040] The primary service unit 11 configures the moving paths of the secondary service units 21 in all moving states.

[0041] When a disaster occurs, according to the past geographical information and population distribution of the disaster-stricken area, the first-level service unit 11 is set up in an area that is easy to reach the center of the disaster area, convenient for material transportation, no possibility of secondary disasters, stable communication network, sufficient electricity, and open and flat terrain, and a deployment plan for the second-level service unit 21 is formulated to cover the entire range of the disaster-stricken area, and finally a multi-level communication network consisting of the first-level service unit 11, the second-level network node 2 and multiple third-level network nodes 3 is constructed, so that the first-level service unit 11 can obtain the help information from the user terminal 31 in a timely manner, and the user terminal 31 can obtain the command and dispatch information pushed by the first-level service unit 11 and the solution provided according to the help information in a timely manner. The deployment plan of the second-level service unit 21 is specifically to arrange the second-level service unit 21 in a static state at a high geographical location, a wide field of view, and a concentrated population distribution according to the geographical information and population distribution of the disaster-stricken area, and formulate the round-trip path of the second-level service unit 21 in a mobile state according to the geographical information and population distribution of the disaster-stricken area. The secondary service units 21 may all be in a mobile state, or all be in a stationary state, or a part of the secondary service units 21 may be in a stationary state and the remaining secondary service units 21 may be in a mobile state.

[0042] This embodiment uses the advantages of the end-to-end self-organizing network without a single control node and the structure that can be changed at any time to expand the wireless communication range of the secondary network node 2 and the tertiary network node 3, and ensure the communication coverage of the entire disaster area in a large-scale disaster scenario. In addition, the end-to-end self-organizing network improves the structural flexibility of the secondary network node 2 and the tertiary network node 3, so that the structure of the secondary network node 2 and the tertiary network node 3 can change with the location of the disaster victims, and can more flexibly respond to the scenes of personnel movement such as the evacuation of disaster victims, and ensure smooth communication during the movement of personnel.

[0043] Specifically, in this embodiment, compared with the user terminal 31, the first-level service unit 11 and the second-level service unit 21 have greater wireless transmission power, higher receiving sensitivity, and a longer wireless connection distance, further broadening the wireless communication range of the first-level service unit 11 and the second-level network node 2, and ensuring that the first-level service unit 11 can establish a communication connection with all user terminals 31.

[0044] In this embodiment, the stationary secondary service unit 21 is placed at a predetermined position by a vehicle or manpower, and the mobile secondary service unit 21 is moved back and forth on the path set by the primary service unit 11 by a vehicle or manpower. The vehicle includes a vehicle, an airplane, an unmanned aerial vehicle, etc. The movement of the vehicle can be directly controlled by the secondary service unit 21, or it can be controlled by an operator according to the route configured by the primary service unit 11. When the secondary service unit 21 is placed at a fixed position and moves back and forth on a set path by manpower, the person carrying the secondary service unit 21 will place and move back and forth according to the route configured by the primary service unit 11.

[0045] Specifically, the secondary service unit 21 has a GPS module to feedback the location of the secondary service unit 21 to the primary service unit 11. The user terminal 31 has a GPS module to feedback the location of the user terminal 31 to the primary service unit 11 through the secondary network node 2. The primary service unit 11 configures the placement position or movement path of the secondary service unit 21 according to the location information of the secondary service unit 21 and the user terminal 31, and flexibly adjusts the movement path of the secondary service unit 21 according to the location changes of the secondary service unit 21 and the user terminal 31.

[0046] Specifically, the secondary service unit 21 has a gyroscope to feed back the angle and motion information of the secondary service unit 21 to the primary service unit 11. The gyroscope can further improve the positioning accuracy based on the GPS module signal, and can also continue to provide angle and motion information in the scenario where the GPS module signal is interrupted, thereby maintaining the continuity and reliability of the route guidance of the primary service unit 11.

[0047] Specifically, the first-level service unit 11 stores emergency data for disaster victims to view and use. The emergency data includes text, audio, video, and multimedia content. The information recorded in the emergency data includes emergency plans required in emergency scenarios, guidance for disaster victims, guidance for first aid operations, methods for seeking help, etc. The user terminal 31 sends a network help message to the first-level service unit 11 through the third-level network node 3 and the second-level network node 2. The first-level service unit 11 dispatches rescuers according to the network help message and provides emergency data to the user terminal 31 that sends the network help message, so that the disaster victims who send the network help message can perform operational emergency processing before the rescuers arrive, thereby improving rescue efficiency.

[0048] Specifically, the primary service unit 11, the secondary service unit 21 and the user terminal 31 all have storage modules. The storage module of the primary service unit 11 is used to cache communication data and store emergency data, the storage module of the secondary service unit 21 is used to cache communication data and emergency data, and the storage module of the user terminal 31 is used to cache communication data and store emergency data. The setting of the storage module makes it unnecessary for the secondary service unit 21 to be equipped with an accompanying person to record and send out the transmitted information. The information transmitted by the secondary service unit 21 can be directly stored in the storage module and directly obtained by the primary service unit 11 and the user terminal 31 through the network.

[0049] Specifically, the secondary service unit 21 has a speaker, and the primary service unit 11 controls the opening and closing of all speakers and configures the broadcast content of all speakers. The victims can obtain action guidance according to the broadcast content of the speakers and cooperate with the arrangements of the rescuers in an orderly manner.

[0050] Specifically, the secondary service unit 21 has a first light source module, and the primary service unit 11 controls the opening and closing of all first light source modules. The disaster victims can obtain the location of the nearby secondary service unit 21 according to the optical signal of the first light source module, and gather at the location of the secondary service unit 21 to quickly realize the two-way wireless communication connection between the user terminal 31 and the secondary service unit 21.

[0051] Specifically, the secondary service unit has a light sensor, the user terminal 31 has a second light source module, the second light source module is used to send out a light distress signal, and the light sensor is used to receive the light distress signal. When the light sensor of the secondary service unit receives the light distress signal, the secondary service unit uploads its current position and the orientation of the light distress signal as light distress information to the primary service unit 11. The orientation of the light distress signal is determined by the gyroscope and the orientation of the light sensor on the secondary service unit. The primary service unit 11 reconfigures the moving path of at least one mobile secondary service unit 21 according to the light distress information, so as to quickly realize a two-way wireless communication connection between the user terminal 31 that sends out the light distress information and the secondary service unit 21.

[0052] Specifically, the secondary service unit 21 and the user terminal 31 both have a power module, which is used to provide power to the electrical components in the secondary service unit 21 and the user terminal 31 to ensure the normal operation of the secondary service unit 21 and the user terminal 31 without external power supply. The power module has a charging function and a power storage function.

[0053] This embodiment also provides a communication system for emergency scenarios based on end-to-end technology, which includes the first-level service unit 11, the second-level service unit 21 and the user terminal 31 recorded in the above method; the first-level service unit 11, the second-level service unit 21 and the user terminal 31 all have wireless communication modules; one first-level service unit 11 is set, multiple second-level service units 21 are set, and multiple user terminals 31 are set; the first-level service unit 11, the second-level service unit 21 and the user terminal 31 are used to implement the above-mentioned communication method for emergency scenarios based on end-to-end technology.

[0054] In summary, this embodiment constructs a multi-level communication network consisting of a primary service unit 11, a secondary network node 2 and a plurality of tertiary network nodes 3, and by taking advantage of the end-to-end self-organizing network without a single control node and the structure being changeable at any time, the wireless communication range of the secondary network node 2 and the tertiary network node 3 is expanded, and the communication coverage of the entire disaster-affected area in a large-area disaster scenario is guaranteed. In addition, the end-to-end self-organizing network improves the structural flexibility of the secondary network node 2 and the tertiary network node 3, so that the structure of the secondary network node 2 and the tertiary network node 3 can change with the location of the affected persons, and can more flexibly respond to the scenes of personnel movement such as the evacuation of the affected persons, and ensure smooth communication during the movement of the personnel. This embodiment ensures that the primary service unit 11 can obtain the help information from the user terminal 31 in a timely manner during the rescue, and enables the user terminal 31 to obtain the command and dispatch information pushed by the primary service unit 11 and the solutions provided according to the help information in a timely manner, such as emergency plans, guidance for the affected persons, guidance for emergency operations, methods for seeking help, etc.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A communication method for emergency scenarios based on end-to-end technology, Features: It includes a primary service unit, a secondary service unit and a user terminal; the primary service unit, the secondary service unit and the user terminal all have a wireless communication module; One first-level service unit is set, and the position of the first-level service unit is fixed; A plurality of secondary service units are provided, wherein the secondary service units are in a mobile state or a stationary state, and all the secondary service units form an end-to-end self-organizing network to realize data transmission; All secondary service units serve as secondary network nodes, and the primary service units communicate with the secondary network nodes in bidirectional wireless communication: at least one secondary service unit in a mobile state moves back and forth between the wireless communication range of the secondary network node and the wireless communication range of the primary service unit, or the wireless communication range of at least one secondary service unit in a stationary state overlaps with the wireless communication range of the secondary network node and the wireless communication range of the primary service unit at the same time; Multiple user terminals are provided, and the user terminals are in a mobile state or a stationary state; each user terminal detects in real time whether there are other user terminals within its wireless communication range, and when there are user terminals within its wireless communication range, it forms an end-to-end self-organizing network with other user terminals within its wireless communication range to realize data transmission; the end-to-end self-organizing network formed by other user terminals is a third-level network node, and a user terminal without other user terminals within its wireless communication range is also a third-level network node; there is at least one third-level network node; The secondary network node communicates with all the tertiary network nodes in two-way wireless communication: each tertiary network node corresponds to a secondary service unit; when the secondary service unit corresponding to the tertiary network node is in a mobile state, the secondary service unit moves back and forth between the wireless communication range of the secondary network node and the wireless communication range of all the tertiary network nodes corresponding to it; when the secondary service unit corresponding to the tertiary network node is in a stationary state, the wireless communication range of the secondary service unit overlaps with the wireless communication range of the secondary network node and the wireless communication range of all the tertiary network nodes corresponding to it; The primary service unit configures the moving paths of the secondary service units in all moving states.

2. According to claim 1, a communication method for emergency scenarios based on end-to-end technology, Features: The secondary service unit has a GPS module for feeding back the location of the secondary service unit to the primary service unit; the user terminal has a GPS module for feeding back the location of the user terminal to the primary service unit through the secondary network node.

3. According to claim 2, a communication method for emergency scenarios based on end-to-end technology, Features: The secondary service unit has a gyroscope for feeding back the angle and motion information of the secondary service unit to the primary service unit.

4. A communication method for emergency scenarios based on end-to-end technology according to any one of claims 1 to 3, Features: The primary service unit, the secondary service unit and the user terminal all have a storage module, and the storage module is used to cache communication data.

5. A communication method for emergency scenarios based on end-to-end technology according to any one of claims 1 to 3, Features: The stationary secondary service unit is placed at a predetermined location by a vehicle or manpower, and the mobile secondary service unit travels back and forth on the path set by the primary service unit by a vehicle or manpower.

6. A communication method for emergency scenarios based on end-to-end technology according to any one of claims 1 to 3, Features: The secondary service unit has a speaker, and the primary service unit controls the opening and closing of all speakers and configures the broadcast content of all speakers.

7. A communication method for emergency scenarios based on end-to-end technology according to any one of claims 1 to 3, Features: The secondary service unit has a first light source module, and the primary service unit controls the switching of all the first light source modules.

8. A communication method for emergency scenarios based on end-to-end technology according to any one of claims 1 to 3, Features: The secondary service unit has a light sensor, and the user terminal has a second light source module, the second light source module is used to send out a light distress signal, and the light sensor is used to receive the light distress signal; when the light sensor receives the light distress signal, the secondary service unit uploads its current position and the direction of the light distress signal as light distress information to the primary service unit; the direction of the light distress signal is determined by the gyroscope and the orientation of the light sensor on the secondary service unit; the primary service unit reconfigures the moving path of at least one secondary service unit in a mobile state according to the light distress information.

9. A communication method for emergency scenarios based on end-to-end technology according to any one of claims 1 to 3, Features: The first-level service unit stores emergency data for disaster victims to review and use, and the emergency data includes text, audio, video, and multimedia content; the user terminal sends a network help message to the first-level service unit through the third-level network node and the second-level network node where it is located, and the first-level service unit provides emergency data to the user terminal that sent the network help message based on the network help message.

10. A communication system for emergency scenarios based on end-to-end technology, Features: It comprises a primary service unit, a secondary service unit and a user terminal; the primary service unit, the secondary service unit and the user terminal all have a wireless communication module; one primary service unit is provided, a plurality of secondary service units are provided, and a plurality of user terminals are provided; the primary service unit, the secondary service unit and the user terminal are used to implement a communication method for emergency scenarios based on end-to-end technology as recorded in claims 1-9.

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