Field emergency rescue box and communication method

Abstract

The invention relates to a field emergency rescue box and a communication method, and is applied to the technical field of field emergency rescue. The field emergency rescue box comprises a box body shell, and a communication wiring port is formed in the box body shell; a 5.8 G wireless network bridge module, an intelligent control unit, a long-distance WIFI coverage module, an interface reservation module and a power management module are arranged in the box body shell, and the 5.8 G wireless network bridge module, the long-distance WIFI coverage module, the interface reservation module and the power management module are all electrically connected with the intelligent control unit. The method and the device have the effect of meeting the core requirements of field emergency scenes on information transmission instantaneity and operation reliability.

Description

Technical Field

[0001] This application relates to the technical field of field emergency rescue, and in particular to a field emergency rescue kit and communication method. Background Technology

[0002] As a core infrastructure for energy transmission, power transmission lines traverse complex geographical environments such as uninhabited areas, high-altitude mountains, and deserts. In high-altitude areas, public network coverage is less than 30%, and over 60% of monitoring points lack access to mobile networks, posing significant safety hazards to field operations such as power transmission line inspections. If inspection personnel encounter emergencies such as heatstroke or animal attacks, they are at risk of being unable to seek help or experiencing delayed rescue efforts. Therefore, developing emergency rescue kits suitable for this scenario is essential.

[0003] The existing wilderness rescue kit is designed specifically for environments without infrastructure. Its core functions include emergency communication, material storage, and environmental adaptation. This type of equipment is mainly used for power / communication inspection, and can also serve multiple wilderness scenarios such as outdoor exploration, forest ranger operations, and geological disaster rescue.

[0004] However, existing emergency rescue kits have significant technical flaws, making it difficult to meet the needs of complex rescue scenarios. Emergency communication modules generally face bandwidth bottlenecks. Due to the low rate of BeiDou short message service, a single message is limited to the number of Chinese characters, allowing only text information to be transmitted. This prevents the transmission of multi-dimensional data such as injury photos and videos, and the intermittent transmission results in poor real-time performance. Satellite phones only support voice calls, and data transmission requires additional expensive satellite services, hindering large-scale application. LoRa self-organizing networks are susceptible to terrain-related electromagnetic interference, affecting the efficiency of collaborative rescue. Consequently, the design of existing emergency rescue kits is not fully adapted to the terminal usage habits and information interaction needs of field operations. Design flaws in interface protocol compatibility and ease of operation lead to insufficient efficiency in rescue information exchange, a high risk of operational errors, and an inability to meet the core requirements of real-time information transmission and operational reliability in field emergency scenarios. Summary of the Invention

[0005] To meet the core requirements of real-time information transmission and operational reliability in field emergency scenarios, this application provides a field emergency rescue kit and communication method.

[0006] Firstly, this application provides a field emergency rescue kit, which adopts the following technical solution:

[0007] A type of wilderness emergency rescue kit, including

[0008] The enclosure has a connection port, and inside the enclosure are a 5.8G wireless bridge module, an intelligent control unit, a long-range WIFI coverage module, an interface reserved module, and a power management module. The 5.8G wireless bridge module, the long-range WIFI coverage module, the interface reserved module, and the power management module are all electrically connected to the intelligent control unit.

[0009] By adopting the above technical solution, the 5.8G wireless bridge module, intelligent control unit, long-distance WIFI coverage module, interface reserved module, and power management module are integrated into the outer shell of the box. The intelligent control unit serves as the central hub to realize the electrical connection of each module, thus constructing an integrated and collaborative hardware architecture. This structure breaks through the limitations of the existing emergency rescue box's scattered layout and poor coordination of various functional modules, providing basic hardware support for high-bandwidth communication, multi-device compatibility, and stable power supply. It solves the problem of the existing equipment's fragmented functions and inability to adapt to complex field rescue scenarios, meeting the core requirements of real-time information transmission and operational reliability in field emergency scenarios. At the same time, the connection port design of the outer shell of the box provides a convenient channel for module wiring and external device connection.

[0010] Optionally, the 5.8G wireless bridge module includes a 5.8G radio frequency chip, a first high-gain directional antenna, a MIMO beamforming module, and an Ethernet interface. The 5.8G radio frequency chip is connected to the first high-gain directional antenna via a coaxial cable. The MIMO beamforming module is integrated inside the 5.8G radio frequency chip. The Ethernet interface supports PoE power supply and is electrically connected to the intelligent control unit.

[0011] By adopting the above technical solution, the 5.8G RF chip, paired with a first high-gain directional antenna and an integrated MIMO beamforming module, fully leverages the deployment advantages of the 5.8G unlicensed frequency band, significantly improving signal transmission distance and anti-interference capabilities. The PoE-enabled Ethernet interface simplifies wiring connections to the intelligent control unit, reducing transmission loss and construction costs. Improving the bandwidth and signal strength of the rescue box's communication module enables the construction of a stable, high-bandwidth transmission link.

[0012] Optionally, the long-range WIFI coverage module includes a WIFI main chip, a second high-gain omnidirectional antenna, and a power amplifier. The WIFI main chip is connected to the second high-gain antenna via a PCIe interface, and the power amplifier is connected in series between the second high-gain antenna and the WIFI main chip. The WIFI main chip is electrically connected to the intelligent control unit via a UART interface.

[0013] By adopting the above technical solution, the WIFI main chip is connected to the second high-gain omnidirectional antenna through a power amplifier, which greatly expands the coverage of the WIFI signal and ensures that the mobile terminal can stably access the network within the preset area. The PCIe interface ensures high-speed signal transmission between the chip and the antenna, while the UART interface enables reliable communication with the intelligent control unit, improving the adaptability and connection stability of the terminal device and allowing trapped personnel to easily access the rescue network.

[0014] Optionally, the intelligent control unit includes a main controller, an edge computing module, and a storage unit; the main controller is electrically connected to the 5.8G wireless bridge module via an Ethernet interface, the main controller is connected to the long-distance WIFI coverage module via an SPI interface, and the edge computing module is electrically connected to the main controller.

[0015] By adopting the above technical solution, the main controller connects to each functional module through different interfaces such as Ethernet and SPI, realizing centralized scheduling and coordinated control of communication, interface, power and other modules. The edge computing module can quickly process and compress distress data locally, reducing transmission bandwidth pressure. The storage unit can cache data to avoid loss, improve data processing efficiency and real-time transmission, and provide support for multi-dimensional information interaction.

[0016] Optionally, the interface reserved module includes a Gigabit Ethernet port, which supports IEEE 802.3af standard PoE power supply.

[0017] By adopting the above technical solutions, the gigabit Ethernet port provides a high-bandwidth data transmission channel, meeting the high-capacity data transmission needs of devices such as drone image transmission and high-definition cameras. It supports the PoE power supply function of the IEEE 802.3af standard, realizing the integration of data transmission and device power supply, expanding the compatibility of external devices in the rescue box, and enhancing the ability of multiple devices to coordinate rescue in field scenarios.

[0018] Optionally, the interface reserved module also includes an RS485 interface, which supports the Modbus RTU protocol with a baud rate range of 9600-115200bps.

[0019] By adopting the above technical solution, the RS485 interface, combined with the Modbus RTU protocol, conforms to the general standards in the field of industrial automation, has strong anti-interference capabilities and long-distance transmission characteristics, and its wide range of baud rates can be adapted to different types of environmental monitoring sensors and other industrial equipment, thus realizing the reliable acquisition and transmission of field environmental data.

[0020] Optionally, the interface reserved module also includes a USB-C interface, which supports the USB 3.0 standard and provides 5V / 3A power supply.

[0021] By adopting the above technical solutions, the USB-C interface, as the mainstream interface, supports the USB 3.0 standard to ensure high-speed data export efficiency, and the 5V / 3A power supply function can meet the emergency charging needs of terminals such as mobile phones and PDAs, eliminating device connection obstacles, improving the convenience of emergency charging and data transfer for trapped personnel, and reducing the complexity of operation.

[0022] Optionally, the power management module includes a CT power supply module, a lithium battery pack, and a power management chip. The CT power supply module has a starting current of not less than 8A and an output power of not less than 15W.

[0023] By adopting the above technical solution, the CT power supply module draws power from the transmission line based on the principle of electromagnetic induction, without the need to lay additional power lines, achieving a stable power supply under normal conditions, and is not affected by environmental factors such as light. The lithium battery pack serves as a backup power source, with a starting current of no less than 8A and an output power of 15W, ensuring continuous operation of the equipment under extreme conditions, significantly improving the power supply reliability and continuous working capability of the equipment in extreme field environments.

[0024] Secondly, this application provides a communication method for a field emergency rescue kit, employing the following technical solution:

[0025] A communication method for a wilderness emergency rescue kit, applied to the wilderness emergency rescue kit as described in the first aspect, the method comprising:

[0026] The target towers were obtained by screening 4G transmission line towers in the environment.

[0027] The target tower is bridged point-to-point or point-to-multipoint using a 5.8G wireless bridge module to build a high-bandwidth signal bridge.

[0028] The long-distance WIFI coverage module activates beamforming technology to focus signal energy within a preset range and generate a WIFI communication link;

[0029] The intelligent control unit receives and compresses the distress data uploaded by the mobile terminal within the WIFI communication link, generating compressed data.

[0030] The intelligent control unit sends the compressed data to the target tower based on the high-bandwidth signal bridge;

[0031] The target tower will push the compressed data to the preset rescue platform.

[0032] By adopting the above technical solutions and constructing bridging links by selecting target towers with high signal quality, the stability of backbone transmission is ensured. The high bandwidth characteristics of the 5.8G wireless bridge, combined with the data compression processing of the intelligent control unit, enable low-latency transmission of large-capacity distress data such as audio and video. Long-distance WIFI coverage provides a convenient channel for terminal access, constructing a complete high-bandwidth communication link of terminal access, data processing, and remote push, thereby improving the efficiency and completeness of rescue information transmission.

[0033] Optionally, the method further includes:

[0034] The intelligent control unit verifies the mobile terminal's access permissions through a preset whitelist, restricting unauthorized devices.

[0035] The intelligent control unit dynamically allocates bandwidth based on service priority, which is in descending order as video or call data, inspection and positioning data, and environmental data.

[0036] By adopting the above technical solutions, the MAC address whitelist verification mechanism effectively blocks unauthorized devices from accessing the network, avoids the occupation of rescue bandwidth resources, and ensures the security and stability of the communication link. The dynamic bandwidth allocation strategy based on business priority ensures the bandwidth requirements of critical rescue data such as video calls, avoids the interruption or loss of critical information transmission due to bandwidth competition, and further improves the security of rescue communication and the reliability of critical business transmission, thus providing a guarantee for efficient rescue.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] 1. The 5.8G wireless bridge module, intelligent control unit, long-range WIFI coverage module, interface reserved module, and power management module are integrated into the outer shell of the box. The intelligent control unit serves as the central hub to realize the electrical connection of each module, thus constructing an integrated and collaborative hardware architecture. This structure breaks through the limitations of the existing emergency rescue box's scattered layout and poor coordination of various functional modules. It provides basic hardware support for high-bandwidth communication, multi-device compatibility, and stable power supply. Overall, it solves the problem of the existing equipment's fragmented functions and inability to adapt to complex field rescue scenarios. It meets the core requirements of field emergency scenarios for the immediacy of information transmission and operational reliability. At the same time, the connection port design of the outer shell of the box provides a convenient channel for module wiring and external device connection.

[0039] 2. By selecting target towers with high signal quality to build bridging links, the stability of backbone transmission was ensured. The high bandwidth of the 5.8G wireless bridge, combined with the data compression processing of the intelligent control unit, enabled low-latency transmission of large-capacity distress data such as audio and video. Long-distance WIFI coverage provided a convenient channel for terminal access, and a complete high-bandwidth communication link of terminal access-data processing-remote push was built, improving the efficiency and completeness of rescue information transmission.

[0040] 3. The MAC address whitelist verification mechanism effectively blocks unauthorized devices from accessing the network, preventing the occupation of rescue bandwidth resources and ensuring the security and stability of the communication link. The dynamic bandwidth allocation strategy based on business priority ensures the bandwidth requirements of critical rescue data such as video calls, avoiding the interruption or loss of critical information transmission due to bandwidth competition, further improving the security of rescue communication and the reliability of critical business transmission, and providing a guarantee for efficient rescue. Attached Figure Description

[0041] Figure 1 This is a schematic diagram illustrating the overall structure of the field emergency rescue kit in the embodiments of this application.

[0042] Figure 2 This is a structural diagram illustrating the open state of the field emergency rescue box in the embodiments of this application.

[0043] Figure 3 This is a schematic diagram illustrating the overall framework of the control system in the embodiments of this application.

[0044] Figure 4 This is a flowchart illustrating a communication method for a field emergency rescue kit provided in an embodiment of this application.

[0045] Explanation of reference numerals in the attached diagram: 1. Housing shell; 11. Connecting port; 2. 5.8G wireless bridge module; 3. Intelligent control unit; 4. Long-distance WIFI coverage module; 5. Interface reserved module; 6. Power management module. Detailed Implementation

[0046] The present application will be further described in detail below with reference to the accompanying drawings.

[0047] This application discloses a field emergency rescue kit. (Refer to...) Figures 1 to 3 The field emergency rescue kit includes an outer shell, which consists of a cavity for housing the modular device and a protective cover. The outer shell is cubic in shape, and multiple connection ports are provided on any one of its four sides. External data cables and other transmission lines can be connected to the internal modular device through these connection ports.

[0048] The wilderness emergency rescue kit also includes a 5.8G wireless bridge module, an intelligent control unit, a long-range WIFI coverage module, an interface reserve module, and a power management module. These modules are all electrically connected to the intelligent control unit and are all housed within the kit's outer casing. It should be noted that the installation location of each module needs to be determined based on actual requirements; as long as it can be safely and intact placed within the kit's outer casing and performs its corresponding function, the specific installation location is not limited here.

[0049] The 5.8G wireless bridge module includes a 5.8G RF chip, a first high-gain directional antenna, a MIMO beamforming module, and an Ethernet interface. The 5.8G RF chip uses a Qualcomm QCA9531 chip supporting OFDM modulation to achieve 5.8GHz band signal transmission and reception, ensuring a bandwidth of no less than 100Mbps. The first high-gain directional antenna is a horizontally / vertically adjustable dual-polarized 18dBi antenna, used to extend the bridging distance with 4G transmission line towers, achieving a coverage range of 5km under line-of-sight conditions. The MIMO beamforming module uses a 2-transmit, 2-receive configuration to improve anti-interference capabilities in non-line-of-sight environments. The Ethernet interface uses a Gigabit RJ45 interface supporting PoE power supply for communication with the intelligent control unit. The 5.8G RF chip is connected to the first high-gain directional antenna via a coaxial cable. The MIMO beamforming module is integrated within the 5.8G RF chip, and the Ethernet interface supports PoE power supply for electrical connection with the intelligent control unit.

[0050] The long-range WIFI coverage module includes a WIFI main chip, a second high-gain omnidirectional antenna, and a power amplifier. The WIFI main chip uses a MediaTek MT7621 chip supporting 802.11ac, which supports 2.4G / 5.8G dual-band, ensuring a speed of no less than 867Mbps. The second high-gain omnidirectional antenna is a 12dBi antenna with a horizontal beamwidth of 360°, used to maintain a signal strength of no less than -70dBm within a 200-meter radius coverage. The power amplifier is a 27dBm adjustable amplifier supporting automatic power control, used to dynamically adjust the transmission power according to ambient noise. The WIFI main chip is connected to the second high-gain antenna via a PCIe interface, and the power amplifier is connected in series between the second high-gain antenna and the WIFI main chip. The WIFI main chip is electrically connected to the intelligent control unit via a UART interface to receive terminal access control commands.

[0051] The intelligent control unit includes a main controller, an edge computing module, and a storage unit. The main controller uses a Hisilicon Hi3519 with an ARM Cortex-A7 architecture for protocol conversion, data processing, and bandwidth scheduling. The edge computing module uses a built-in NPU with 2 TOPS computing power for real-time processing of video streams and terminal access management. The storage unit uses 64GB eMMC and supports local data caching for storing monitoring data and terminal access logs. The main controller is electrically connected to a 5.8G wireless bridge module via an Ethernet interface and to a long-distance WIFI coverage module via an SPI interface. The edge computing module is electrically connected to the main controller and is integrated inside the main controller chip, achieving data interaction through shared memory.

[0052] The interface reserved module includes two Gigabit Ethernet ports, two RS485 ports, and one USB-C port. The Ethernet ports support IEEE 802.3af standard PoE power supply and are used to adapt to the image transmission module and high-definition camera of the inspection drone. The RS485 ports support the Modbus RTU protocol with a baud rate range of 9600-115200bps and are used to adapt to icing sensors and wildfire detectors. The USB-C port supports the USB 3.0 standard and provides 5V / 3A power supply for emergency charging and data export.

[0053] The power management module includes a CT power supply module, a lithium battery pack, and a power management chip. The CT power supply module has a starting current of no less than 8A and an output power of no less than 15W, and is used to draw power from the power transmission line. The lithium battery pack uses 12V / 50Ah lithium iron phosphate batteries with a cycle life of no less than 3000 cycles, and is used as backup power when there is no light or the CT power supply is interrupted. The power management chip uses a TI TPS63070 chip that can convert 12V to 5V / 3.3V to provide stable voltage for each module.

[0054] The implementation principle of a field emergency rescue kit in this application embodiment is as follows: A 5.8G radio frequency chip and a first high-gain antenna are used to bridge a stable 4G signal pole point-to-point, converting the 4G signal into a local network signal for the rescue kit. This supports simultaneous transmission of 1080P video streams and real-time calls. The MIMO beamforming module dynamically adjusts the signal direction through a 2T2R antenna array, and the long-range WiFi module adopts IEEE... The 802.11ac protocol, through a second high-gain antenna and power amplifier, achieves a 200-meter radius coverage in open areas, supporting uninterrupted connection for mobile phones and PDAs while on the move. The Ethernet port provides a data backhaul interface for inspection drones, supporting real-time uploading of high-definition videos captured by drones to the backend via the rescue box bridge. PoE power supply provides 15.4W of power to external cameras. An RS485 interface connects to online monitoring equipment for power transmission lines, enabling data acquisition and remote control via the Modbus protocol. Dual backup is provided by CT power supply and lithium battery; under normal operating conditions, the CT power supply module provides 15W of output power, automatically switching to the 50Ah lithium battery pack when the line experiences a power outage or the current is <8A. The lithium battery pack has a built-in PTC heating film that automatically activates when the temperature is <-20℃, maintaining a battery capacity of ≥90%. The intelligent control unit supports concurrent access from 30 terminals, restricting unauthorized devices through a MAC address whitelist and dynamically allocating bandwidth based on service priority.

[0055] This application provides a communication method for a field emergency rescue kit. This communication method can be executed by an electronic device, which can be a server or a terminal device. The server can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services. The terminal device can be a smartphone, tablet computer, desktop computer, etc., but is not limited to these.

[0056] Figure 4 This is a flowchart illustrating a communication method for a field emergency rescue kit provided in an embodiment of this application.

[0057] like Figure 4 As shown, the main process of this method is described below (steps S101 to S104):

[0058] Step S101: Screen the 4G transmission line towers in the environment to obtain the target towers.

[0059] In this embodiment, before performing high-bandwidth signal bridging, it is necessary to screen suitable 4G transmission line towers in the environment and select 4G transmission line towers with a signal strength of not less than -75dBm as target towers.

[0060] Step S102: Use a 5.8G wireless bridge module to bridge the target tower point-to-point or point-to-multipoint to build a high-bandwidth signal bridge.

[0061] In this embodiment, after selecting the target tower, the target tower is bridged in a point-to-point or point-to-multipoint manner to build a high-bandwidth signal bridge to support the simultaneous transmission of 1080P video stream (2Mbps) and real-time calls (16kbps).

[0062] In step S103, the long-distance WIFI coverage module activates beamforming technology to focus signal energy within a preset range and generate a WIFI communication link.

[0063] In this embodiment, the long-range WIFI coverage module starts working, focusing the signal energy to achieve a 200-meter radius coverage in open areas, with a signal strength of no less than -70dBm, supporting mobile phones and PDAs to maintain connection while moving. Inspection personnel connect their mobile phones or PDAs to the rescue box's WIFI, enter the password, and establish a communication link based on the IEEE 802.11 protocol.

[0064] In step S104, the intelligent control unit receives and compresses the distress data uploaded by the mobile terminal within the WIFI communication link, generating compressed data.

[0065] In this embodiment, distress data is sent via a WeChat mini-program or a dedicated APP. The distress data includes real-time location and description of injuries. The intelligent control unit compresses the data through the edge computing module, typically with a compression ratio of 3:1, compressing the distress data into compressed data.

[0066] In step S105, the intelligent control unit sends compressed data to the target tower based on high-bandwidth signal bridging.

[0067] In this embodiment, the compressed data is transmitted back to the 4G tower via a 5.8G bridge, that is, the compressed data is sent to the target tower through high-bandwidth signal bridging.

[0068] In step S106, the target tower pushes the compressed data to the preset rescue platform.

[0069] In this embodiment, after the compressed data is sent to the target tower, it is transmitted to the backend rescue platform via the public network, ensuring a latency of no more than 500ms. The backend platform simultaneously pushes the distress call information to the mobile terminals of nearby line maintenance personnel and controls a drone to take off for reconnaissance via the Ethernet port of the rescue box.

[0070] In this embodiment, the intelligent control unit verifies the access permission of mobile terminals through a preset whitelist to restrict unauthorized devices; the intelligent control unit dynamically allocates bandwidth based on service priority, with the service priority from high to low being video or call data, inspection and positioning data, and environmental data.

[0071] The control setting unit sets a whitelist, verifies the intervening devices through the list, and sets the service priority. Among them, video or call data, which is drone video stream (2Mbps) and real-time call (1Mbps), is set as the first priority; inspection positioning data, which is inspection PDA data (500kbps) and WeChat location information (100kbps), is set as the second priority; and environmental data, which is environmental sensor data (50kbps), is set as the third priority.

[0072] In this embodiment, the collaborative work between devices is illustrated using online monitoring combined with drone inspection as an example, including:

[0073] Sensor data acquisition: The wildfire detector connected to the RS485 interface uploads temperature data every 10 seconds, with the data ranging from -40 to 80℃ and an accuracy of ±1℃;

[0074] Abnormal trigger: When the temperature is >60℃, the intelligent control unit automatically starts the drone image transmission module connected to the Ethernet port;

[0075] Drone collaboration: Drones capture on-site video and transmit it back to the rescue box in real time via PoE Ethernet port, and then upload it to the backend via a 5.8G bridge;

[0076] Linked alarm: The backend combines sensor data and video footage to determine the level of wildfire risk and trigger the corresponding emergency plan.

[0077] The terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0078] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the foregoing application concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions claimed in this application.

Claims

1. A field emergency rescue kit, characterized in that: The box shell is provided with a communication connection port, and the inside of the box shell is provided with a 5.8G wireless network bridge module, an intelligent control unit, a long-distance WIFI coverage module, an interface reservation module and a power management module, wherein the 5.8G wireless network bridge module, the long-distance WIFI coverage module, the interface reservation module and the power management module are electrically connected with the intelligent control unit. The 5.8G wireless network bridge module comprises a 5.8G radio frequency chip, a first high-gain directional antenna, a MIMO beam forming module and an Ethernet interface, the 5.8G radio frequency chip is connected with the first high-gain directional antenna through a coaxial cable, the MIMO beam forming module is integrated in the 5.8G radio frequency chip, and the Ethernet interface supports PoE power supply and is electrically connected with the intelligent control unit.

2. The field emergency rescue kit according to claim 1, characterized in that: The long-distance WIFI coverage module comprises a WIFI main chip, a second high-gain omnidirectional antenna and a power amplifier, the WIFI main chip is connected with the second high-gain antenna through a PCIe interface, the power amplifier is connected in series between the second high-gain antenna and the WIFI main chip, and the WIFI main chip is electrically connected with the intelligent control unit through a UART interface.

3. The field emergency rescue kit according to claim 1, characterized in that: The intelligent control unit comprises a main controller, an edge computing module and a storage unit, the main controller is electrically connected with the 5.8G wireless network bridge module through an Ethernet interface, the main controller is connected with the long-distance WIFI coverage module through an SPI interface, and the edge computing module is electrically connected with the main controller.

4. The field trauma case of claim 1, wherein: The interface reservation module comprises a gigabit Ethernet port, and the Ethernet port supports IEEE802.3af standard PoE power supply.

5. The field trauma case of claim 1, wherein: The interface reservation module further comprises an RS485 interface, the RS485 interface supports a ModbusRTU protocol, and the baud rate ranges from 9600 to 115200bps.

6. The field rescue kit of claim 5, wherein: The interface reservation module further comprises a USB-C interface, the USB-C interface supports a USB3.0 standard and provides 5V / 3A power supply.

7. The field rescue kit of claim 5, wherein: The power management module comprises a CT power taking module, a lithium battery pack and a power management chip, the CT power taking module has a starting current of not less than 8A and an output power of not less than 15W.

8. The field trauma case of claim 1, wherein: The method applied to the field emergency rescue box comprises the following steps:

9. A method of communicating for a field emergency rescue kit, characterized by, Target towers are obtained by screening 4G power transmission line towers in the environment; The target towers are bridged by a 5.8G wireless network bridge module in point-to-point or point-to-multipoint mode to construct a high-bandwidth signal bridge; The long-distance WIFI coverage module starts a beam forming technology to focus signal energy in a preset range to generate a WIFI communication link; The intelligent control unit receives and compresses rescue data uploaded by a mobile terminal in the WIFI communication link to generate compressed data; The intelligent control unit sends the compressed data to the target towers based on the high-bandwidth signal bridge; The target towers push the compressed data to a preset rescue platform. The method further comprises the following steps:

10. The method of claim 9, wherein, The intelligent control unit verifies the access authority of the mobile terminal through a preset white list to limit illegal devices. ​ The intelligent control unit dynamically allocates bandwidth based on service priority, and the service priority from high to low is video or call data, patrol positioning data and environmental data.

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