Portable civil air defense emergency communication terminal and working method thereof

Abstract

The invention belongs to the technical field of communication terminals, and discloses a portable civil air defense emergency communication terminal and a working method thereof.The portable civil air defense emergency communication terminal comprises a storage box, a through groove is formed in the middle of the bottom end of the storage box, and fixed guide rails are fixedly installed on the front side and the rear side, close to the bottom end, of an inner cavity of the storage box; mounting shafts are movably mounted on the left side and the right side of the storage box correspondingly, supporting frames are fixedly mounted on the outer side faces of the mounting shafts, the supporting frames rotate relative to the storage box through the mounting shafts, a linkage assembly is mounted between the two supporting frames, and movable plates are mounted on the left side and the right side, close to the top end, of the linkage assembly correspondingly. Through cooperation of the bidirectional lead screw and the movable plate and the effect of the supporting assembly, the device can be kept in a storage state in an initial state, automatic rising of the communication terminal can be rapidly completed by rotating the bidirectional lead screw when needed, the communication terminal is converted into a working state, the whole process can be rapidly completed, and the working efficiency is improved. Portability and working efficiency are both considered, and waiting time is shortened.

Description

Technical Field

[0001] The present invention belongs to the technical field of communication terminals, and specifically relates to a portable civil air defense emergency communication terminal and a working method thereof. Background Art

[0002] The Civil Air Defense Emergency Communication Terminal is a portable communication device designed specifically for air defense and disaster relief. It integrates multiple network technologies, including shortwave, 4G / 5G public networks, satellite links, and ad hoc networks. It supports voice intercom, HD video transmission (720P / 1080P), file sending and receiving, and Beidou / GPS dual-mode positioning. Its core features include multi-link adaptive technology to ensure stable communications in complex environments, and integrated triple-proof design (waterproof, dustproof, and shockproof) and industrial-grade hardware (including a shockproof solid-state drive) to adapt to extreme conditions.

[0003] Since the emergency communication terminal integrates multiple functions, it actually occupies a large space, and in order to prevent it from being damaged, the communication terminal is usually placed inside a storage box for carrying. However, when it is used, it needs to be taken out of the storage box and the base at the bottom needs to be unfolded. The whole preparation time is long, and the device cannot be quickly switched from a portable state to a working state.

[0004] Existing terminal communication hardware generally relies on basic technologies such as traditional shortwave and 4G / 5G public networks. However, in extreme disaster or wartime scenarios, public networks are often disrupted due to infrastructure damage, while shortwave communications are susceptible to electromagnetic interference and have low transmission rates, resulting in the inability to reliably transmit critical information (such as high-definition video and real-time environmental data). Furthermore, some equipment lacks unified industry standards, and terminals produced by different manufacturers lack compatibility. For example, technical parameters such as siren power and sound pressure level vary widely. Some products are put into use without technical verification, which can easily lead to signal distortion or insufficient coverage in complex environments. Summary of the invention

[0005] The purpose of the present invention is to provide a portable civil air defense emergency communication terminal and a working method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: A portable civil air defense emergency communication terminal, including a storage box. A through groove is opened in the middle of the bottom end of the storage box. Both the front and rear sides near the bottom end of the inner cavity of the storage box are fixedly installed with fixed guide rails. Both the left and right sides of the storage box are movably installed with mounting shafts. A support frame is fixedly installed on the outer side surface of the mounting shaft. The support frame rotates relative to the storage box through the mounting shaft. A linkage component is installed between the two support frames. Movable plates are installed on the left and right sides near the top end of the linkage component. A support component is provided at the top end of the linkage component. The left and right sides of the bottom end of the support component are connected to the positions near the top ends between the two movable plates. A communication terminal is installed at the top end of the support component. When the support component and the linkage component are in the initial state, the support frame is parallel to the bottom end of the storage box, and the communication terminal is completely located inside the storage box.

[0007] In the initial state, that is, when the device is in the storage state, at this time the support frame is in a parallel state with the bottom end of the storage box, that is, in a non-support state, and the communication terminal is all located inside the storage box, maintaining the storage state.

[0008] As a further technical solution of the present invention, guide blocks are installed at both the front and rear ends of the movable plate. The movable plate is movably clamped between the two fixed guide rails through the guide blocks, and the movable plate moves left and right relative to the fixed guide rails.

[0009] As a further technical solution of the present invention, a threaded sleeve is fixedly installed in the middle of the movable plate. A bidirectional lead screw is movably installed in the middle of the storage box. The bidirectional lead screw is threadedly sleeved between the two threaded sleeves. The thread directions on the left and right sides of the bidirectional lead screw are the same as the thread directions inside the two threaded sleeves.

[0010] When it is necessary to raise the communication terminal, the bidirectional lead screw can be rotated. Then, under the action of the two threaded sleeves and the guiding action of the movable plate and the fixed guide rail, the two movable plates can be driven to approach each other relatively. When the bidirectional lead screw is rotated in the reverse direction, the two movable plates can be driven to move away from each other relatively.

[0011] As a further technical solution of the present invention, the support component includes two first fixed seats, which are respectively connected to the positions near the top ends of the inner side surfaces of the two movable plates. One end of each first fixed seat away from the movable plate is movably connected to a support rod through a rotating shaft.

[0012] As a further technical solution of the present invention, one end of each support rod away from the first fixed seat is movably connected to a second fixed seat through a rotating shaft. The support component further includes a support platform. The left and right sides of the bottom end of the support platform are connected to the top ends of the two second fixed seats. The top end of the support platform is connected to the bottom end of the communication terminal.

[0013] When the two movable plates approach each other relatively, they can drive the two first fixed seats to approach each other relatively. At this time, the two support rods deflect obliquely upward accordingly, and at the same time exert a thrust on the support platform. At this time, the support platform rises accordingly, driving the communication terminal at the top to rise until the communication terminal rises to the highest position. At this time, the communication terminal can be operated. When the two movable plates move away from each other relatively, the two support rods deflect obliquely downward accordingly, driving the support platform to descend until the communication terminal descends into the interior of the storage box to complete the storage process.

[0014] By utilizing the cooperation of the bidirectional lead screw and the movable plate and the action of the support assembly, the device can maintain the storage state in the initial state, and when needed, the communication terminal can be quickly lifted automatically by rotating the bidirectional lead screw, turning it into the working state. The whole process can be completed quickly, taking into account portability and working efficiency, and reducing waiting time.

[0015] As a further technical solution of the present invention, the linkage assembly includes third fixed seats. The number of the third fixed seats is two and they are respectively connected to the positions near the bottom ends of the inner sides of the two movable plates. One ends of the third fixed seats far away from the movable plates are respectively connected with connecting rods through rotating shafts.

[0016] As a further technical solution of the present invention, one ends of the connecting rods far away from the third fixed seats are respectively connected with fourth fixed seats through rotating shafts. The linkage assembly further includes a movable frame located at the bottom end of the storage box. The left and right sides of the top end of the movable frame are connected to the bottom ends of the two fourth fixed seats.

[0017] As a further technical solution of the present invention, fifth fixed seats are fixedly installed on the left and right sides of the movable frame. One ends of the fifth fixed seats far away from the movable frame are respectively connected with support rods through rotating shafts. One ends of the support rods far away from the fifth fixed seats are respectively connected with sixth fixed seats through rotating shafts. The other ends of the sixth fixed seats are connected to the inner side surfaces of the support frames.

[0018] As a further technical solution of the present invention, when the distance between the two movable plates is at the maximum value, the support assembly and the linkage assembly are in the initial state, and the communication terminal is all located inside the storage box, and the support frame and the bottom end of the storage box are in a parallel relationship with each other.

[0019] At the same time, when the two movable plates approach each other, the two third fixed seats also approach each other, and the two connecting rods deflect obliquely downward and apply a thrust to the movable frame. At this time, the movable frame moves downward and applies a thrust to the two support rods. At this time, the two support rods deflect toward the outer side and apply a thrust to the support frame. At this time, the support frame rotates relative to the mounting axis until it changes from a state parallel to the storage box to a vertical state, completing the support. When the two movable plates move away from each other, the movable frame rises, and at the same time drives the two support rods to deflect toward the inner side. The two support frames are subjected to tension until the support frame and the storage box are parallel to each other, completing the storage process.

[0020] Through the coordination of the bidirectional lead screw and the threaded sleeve, as well as the coordination between the movable plate and the linkage assembly, the device can quickly realize the deployment and storage of the communication terminal, and at the same time can realize the storage and support process of the support frame in linkage. The whole process is completed synchronously, and the communication terminal can be deployed while the support frame is automatically supported. When the communication terminal is completed, the support frame is automatically folded, further shortening the preparation time and improving the overall work efficiency.

[0021] A method for operating a portable civil air defense emergency communication terminal comprises the following steps: S1: Dynamic switching and self-test of multi-mode communication links; S2: Intelligent analysis and automated response; S3: Remote maintenance and cross-platform collaboration; S4: Full-scenario adaptive verification; The dynamic switching and self-test of the multi-mode communication link includes starting self-test and link priority determination and real-time monitoring of three-proof performance. Specifically, after the terminal is turned on, it automatically performs hardware self-test, detects the availability of 5G modules, ad hoc network modules, BeiDou-3 RDSS and RNSS dual-mode chips, and Ka-band high-throughput satellite modules, generates a device health report including module status, signal strength, and battery health, and dynamically allocates communication link priority based on GPS positioning and network signal strength: public network 5G or 4G is given priority, and Ka-band satellite links are secondarily selected. When the network is disconnected, it switches to ad hoc network multi-hop relay. The single-hop transmission distance is at least 3 kilometers, and the throughput is not less than 70Mbps. Shortwave communication is enabled in extreme environments. The built-in environmental sensor continuously monitors the sealing of the terminal shell, internal temperature and humidity, and battery health. The sealing meets the IP68 standard, the temperature and humidity adaptability range is -40 degrees Celsius to 70 degrees Celsius, and the battery charge and discharge cycles exceed 1,000 times. In the event of an abnormality, an alarm is triggered and the device automatically switches to the backup module. The intelligent analysis and automated response include edge computing and disaster identification, as well as hierarchical warning and linkage control. Specifically, an NPU chip with a computing power of no less than 4 TOPS is installed to process sensor data in real time, run the YOLOv5 model with an input resolution of 1280×720 and a frame rate of 30 FPS, identify 10 types of disaster features such as fire, collapse, toxic gas concentration, and vital signs, with an identification accuracy of no less than 95%. After local data encryption, it is uploaded to the command center via the 470 MHz LoRaWAN frequency band or the Ka-band satellite link, and the bit error rate of the satellite link is less than 1×10⁻ 6 , and a three-dimensional geographic information heat map is generated synchronously. The coordinates adopt the WGS84 standard with an accuracy of 0.1 meters. Three-level warning thresholds are set: the yellow warning is triggered when the PM2.5 concentration is greater than 150 micrograms per cubic meter, the orange warning is triggered when the environmental temperature is greater than 50 degrees Celsius or the carbon monoxide concentration is greater than 50 ppm, and the red warning is triggered when the PM2.5 concentration is greater than 500 micrograms per cubic meter or the temperature is greater than 60 degrees Celsius. After the warning is triggered, the audible and visual alarm system is activated, with a sound pressure level reaching 120 decibels and a frequency coverage of 300 to 5000 Hz. The evacuation instructions are automatically broadcast to surrounding terminals, and the fire and medical systems are linked through the JSON data interface, with a query volume of no less than 1000 times per second and a response time of less than 200 milliseconds. The disaster coordinates and the vital signs data of the wounded are pushed, and the drone is launched to perform aerial monitoring at a resolution of 1080P and a frame rate of 60 Hz; The remote maintenance and cross-platform collaboration include zero-contact operation and maintenance and OTA upgrade, as well as multi-system data integration. Specifically, based on the TR-069 protocol, the CPU utilization rate, memory occupancy rate, and battery health of the terminal are monitored in real time. When abnormal, a diagnostic report containing the fault code, GPS coordinates, and network quality heat map is generated. The OTA upgrade with A / B partition design is completed through the satellite link, with an incremental package size of no more than 200 MB and an upgrade time of less than 5 minutes. It supports breakpoint resumption and automatic rollback in case of MD5 verification failure. The operation and maintenance platform automatically matches the spare parts inventory, dispatches drones or mobile command vehicles to replace the explosion-proof solid-state hard drive or the Type-C interface module. The spare parts support hot plugging and full disk encryption. The standardized data interface is compatible with the HTTPS API of the fire 119 system, the HL7 FHIR protocol of the medical emergency platform, and the sky network monitoring, realizing multi-terminal synchronization of disaster videos, GIS maps, and emergency plans. The video resolution is 720P and the frame rate is 30 FPS. The GIS map supports dynamic geographic fence marking; The full-scenario adaptive verification includes extreme environment stress testing, as well as human-computer interaction and electromagnetic compatibility verification. Specifically, a sandstorm environment is simulated with a particle concentration greater than 15 grams per cubic meter, and it runs continuously for 72 hours to verify that the multi-hop delay of the self-organizing network is less than 200 milliseconds, and the bit error rate of the satellite link is less than 1×10⁻ 6The touch screen sensitivity error is less than 5%, simulating a rainstorm environment with a rainfall of 50 mm per hour for 12 hours, verifying that there is no water leakage in the Type-C interface, and the casing protection performance meets the IP68 standard. The blind test team verified that the voice wake-up time is less than 0.8 seconds, the wake-up word recognition rate is not less than 98%, the touch response time is less than 0.3 seconds, and the interface error rate is less than 2%. It has passed the GB / T 17626.6 electromagnetic compatibility standard, the radio frequency field inductive impedance strength is 10 volts per meter, the frequency band covers 80MHz to 1GHz, and the spurious emission intensity is less than negative 36dBm, which meets the requirements of EN 301 489-1 industrial electromagnetic environment.

[0022] The beneficial effects of the present invention are as follows: (1) The present invention utilizes the cooperation between the bidirectional screw and the movable plate and the function of the supporting assembly so that the device can be kept in the storage state in the initial state. When needed, the communication terminal can be automatically raised and transformed into the working state by rotating the bidirectional screw. The whole process can be completed quickly, taking into account portability and work efficiency, and reducing waiting time.

[0023] (2) The present invention cooperates with the bidirectional screw and the threaded sleeve, and the movable plate and the linkage assembly, so that the device can quickly realize the deployment and storage of the communication terminal, and can also realize the storage and support process of the support frame in a linked manner. The whole process is completed synchronously, and the communication terminal can be deployed while the support frame is automatically supported. When the communication terminal is stored, the support frame is automatically folded, further shortening the preparation time and improving the overall work efficiency.

[0024] (3) By integrating multi - mode communication and intelligent decision - making mechanisms, the present invention significantly improves the emergency response efficiency in extreme environments. It adopts dynamic link management technology to achieve seamless switching between different communication modes, effectively overcoming the information island problem of traditional devices in scenarios of network disconnection or electromagnetic interference, and ensuring the stable transmission of key data under complex terrains and harsh climate conditions. At the level of disaster identification, the terminal relies on an embedded intelligent analysis module to greatly shorten the detection cycle of disaster characteristics, achieve accurate assessment and hierarchical early warning of multi - dimensional environmental risks, and quickly mobilize rescue resources through a multi - system coordination mechanism, forming a closed - loop management system from on - site perception to command and dispatch. The built - in autonomous maintenance system of the device significantly reduces the difficulty of manual operation and maintenance, supports remote diagnosis and security upgrades, and ensures the reliability of the hardware during long - term deployment. The standardized data interface design breaks down the information barriers between cross - domain rescue platforms, strengthens the emergency coordination ability of multiple departments, and enables the efficient integration of video streams, geographic information, and vital sign data. Through a rigorous environmental verification system, the terminal demonstrates excellent performance in physical protection, human - machine interaction, and anti - interference. The touch response and voice command recognition accuracy meet the requirements of emergency operations, and the electromagnetic compatibility characteristics ensure its stable operation in complex electromagnetic environments. The overall solution takes into account portability and functional completeness, constructs an all - weather and all - terrain three - dimensional emergency communication network, provides real - time situation awareness and decision - making support capabilities for emergency incident handling, and effectively improves the success rate of life rescue and the prevention level of secondary disasters in the affected area. Description of the Drawings

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the bottom structure of the present invention; Figure 3 It is a cross - sectional schematic diagram of the internal structure of the storage box of the present invention; Figure 4 It is a schematic diagram of the cooperation between the support frame and the mounting shaft structures of the present invention; Figure 5 It is an exploded schematic diagram of the structures of the bidirectional lead screw and the threaded sleeve of the present invention; Figure 6 It is a side schematic diagram of the cooperation state of the support assembly and the linkage assembly of the present invention; Figure 7 It is a schematic diagram of the overall working process of the present invention.

[0026] In the figure: 1, storage box; 2, through groove; 3, fixed guide rail; 4, support frame; 5, mounting shaft; 6, bidirectional lead screw; 7, movable plate; 8, threaded sleeve; 9, guide block; 10, communication terminal; 11, support assembly; 111, first fixed seat; 112, second fixed seat; 113, support rod; 114, support platform; 12, linkage assembly; 121, third fixed seat; 122, fourth fixed seat; 123, connecting rod; 124, movable frame; 125, fifth fixed seat; 126, sixth fixed seat; 127, strut. Detailed implementation manner

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] As Figures 1 to 7 shown, in the embodiment of the present invention, a portable civil air defense emergency communication terminal includes a storage box 1. A through groove 2 is opened in the middle of the bottom end of the storage box 1. Fixed guide rails 3 are fixedly installed on the front and rear sides near the bottom end of the inner cavity of the storage box 1. Mounting shafts 5 are movably installed on the left and right sides of the storage box 1. A support frame 4 is fixedly installed on the outer side of the mounting shaft 5. The support frame 4 rotates relative to the storage box 1 through the mounting shaft 5. A linkage assembly 12 is installed between the two support frames 4. Movable plates 7 are installed on the left and right sides near the top end of the linkage assembly 12. A support assembly 11 is provided at the top end of the linkage assembly 12. The left and right sides of the bottom end of the support assembly 11 are connected to the positions near the top end between the two movable plates 7. A communication terminal 10 is installed at the top end of the support assembly 11. When the support assembly 11 and the linkage assembly 12 are in the initial state, the support frame 4 is parallel to the bottom end of the storage box 1, and the communication terminal 10 is completely located inside the storage box 1.

[0029] In the initial state, that is, when the device is in the storage state, at this time, the support frame 4 is in a parallel state with the bottom end of the storage box 1, that is, in a non-support state, and the communication terminal 10 is completely located inside the storage box 1, maintaining the storage state.

[0030] As Figure 3 and Figure 5 shown, guide blocks 9 are installed at the front and rear ends of the movable plate 7. The movable plate 7 is movably clamped with the two fixed guide rails 3 through the guide blocks 9. The movable plate 7 moves left and right relative to the fixed guide rail 3. A threaded sleeve 8 is fixedly installed in the middle of the movable plate 7. A bidirectional lead screw 6 is movably installed in the middle of the storage box 1. The bidirectional lead screw 6 is threadedly sleeved with the two threaded sleeves 8. The thread directions on the left and right sides of the bidirectional lead screw 6 are the same as the thread directions inside the two threaded sleeves 8.

[0031] When it is necessary to raise the communication terminal 10, the bidirectional lead screw 6 can be rotated. Under the action of the two threaded sleeves 8 and the guiding action of the movable plate 7 and the fixed guide rail 3, the two movable plates 7 can be driven to approach each other relatively. When the bidirectional lead screw 6 is rotated in the reverse direction, the two movable plates 7 can be driven to move away from each other relatively.

[0032] As Figure 3 and Figure 6 As shown in the figure, the support assembly 11 includes a first fixed seat 111. The number of the first fixed seats 111 is two, and they are respectively connected to the positions near the top of the inner sides of the two movable plates 7. One ends of the first fixed seats 111 away from the movable plates 7 are respectively movably connected with support rods 113 through rotating shafts. One ends of the support rods 113 away from the first fixed seats 111 are respectively movably connected with second fixed seats 112 through rotating shafts. The support assembly 11 further includes a support platform 114. The left and right sides of the bottom end of the support platform 114 are connected to the tops of the two second fixed seats 112. The top end of the support platform 114 is connected to the bottom end of the communication terminal 10.

[0033] Embodiment: When the two movable plates 7 approach each other relatively, the two first fixed seats 111 can be driven to approach each other relatively. At this time, the two support rods 113 deflect obliquely upward accordingly, and at the same time apply a thrust to the support platform 114. At this time, the support platform 114 rises accordingly, and drives the communication terminal 10 at the top to rise until the communication terminal 10 rises to the highest position. At this time, the communication terminal 10 can be operated. When the two movable plates 7 move away from each other relatively, at this time, the two support rods 113 deflect obliquely downward accordingly, and drive the support platform 114 to descend until the communication terminal 10 descends into the interior of the storage box 1 to complete the storage process.

[0034] By utilizing the cooperation of the bidirectional lead screw 6 and the movable plate 7 and the action of the support assembly 11, the device can be kept in a storage state in the initial state. When needed, by rotating the bidirectional lead screw 6, the communication terminal 10 can be quickly lifted automatically, and it can be changed into a working state. The whole process can be completed quickly, taking into account portability and working efficiency, and reducing waiting time.

[0035] As Figure 2 and Figure 3 as well as Figure 6As shown, the linkage assembly 12 includes a third fixed seat 121, the number of the third fixed seat 121 is two and they are respectively connected to the inner side surfaces of the two movable plates 7 near the bottom end, the third fixed seat 121 is away from the movable plate 7. One end of the third fixed seat 121 is movably connected to a connecting rod 123 through a rotating shaft, and one end of the connecting rod 123 is away from the third fixed seat 121. It is movably connected to a fourth fixed seat 122 through a rotating shaft. The linkage assembly 12 also includes a movable frame 124 at the bottom end of the storage box 1, and the left and right sides of the top of the movable frame 124 are connected to the bottom ends of the two fourth fixed seats 122. The left side of the movable frame 124 The fifth fixed seat 125 is fixedly installed on both sides of the right side, and the end of the fifth fixed seat 125 away from the movable frame 124 is movably connected to the support rod 127 through a rotating shaft, and the end of the support rod 127 away from the fifth fixed seat 125 is movably connected to the sixth fixed seat 126 through a rotating shaft, and the other end of the sixth fixed seat 126 is connected to the inner side surface of the support frame 4. When the distance between the two movable plates 7 is at the maximum value, the support assembly 11 and the linkage assembly 12 are in the initial state, and the communication terminal 10 is all located inside the storage box 1, and the support frame 4 and the bottom end of the storage box 1 are in parallel with each other.

[0036] Embodiment: At the same time, when the two movable plates 7 approach each other, the two third fixed seats 121 also approach each other, and the two connecting rods 123 deflect obliquely downward and apply a thrust to the movable frame 124. At this time, the movable frame 124 moves downward and applies a thrust to the two support rods 127. At this time, the two support rods 127 deflect toward the outer side and apply a thrust to the support frame 4. At this time, the support frame 4 rotates relative to the mounting shaft 5 until it changes from a parallel state to a vertical state with the storage box 1 to complete the support. When the two movable plates 7 move away from each other, the movable frame 124 rises and drives the two support rods 127 to deflect toward the inner side. The two support frames 4 are subjected to tension until the support frame 4 and the storage box 1 are parallel to each other, completing the storage process.

[0037] Through the cooperation of the bidirectional screw rod 6 and the threaded sleeve 8, as well as the cooperation between the movable plate 7 and the linkage assembly 12, the device can quickly realize the deployment and storage of the communication terminal 10, and at the same time can realize the storage and support process of the support frame 4 in linkage. The whole process is completed synchronously, and the communication terminal 10 can be deployed while the support frame 4 is automatically supported. When the communication terminal 10 is completed, the support frame 4 is automatically folded, further shortening the preparation time and improving the overall work efficiency.

[0038] A method for operating a portable civil air defense emergency communication terminal comprises the following steps: S1: Dynamic switching and self-test of multi-mode communication links; S2: Intelligent analysis and automated response; S3: Remote maintenance and cross-platform collaboration; S4: Full-scenario Adaptive Verification; The dynamic switching and self-check of the multi-mode communication link include starting the self-check, determining the link priority, and real-time monitoring of the three-proof performance. Specifically, after the terminal is powered on, it automatically performs a hardware self-check to detect the availability of the 5G module, the self-organizing network module, the Beidou-3 RDSS and RNSS dual-mode chip, and the Ka-band high-throughput satellite module, and generates a device health report containing module status, signal strength, and battery health. Based on GPS positioning and network signal strength, the communication link priority is dynamically allocated: preferentially select public network 5G or 4G, secondly select the Ka-band satellite link, and switch to the self-organizing network multi-hop relay when the network is disconnected. The single-hop transmission distance is at least 3 kilometers, and the throughput is not less than 70 Mbps. In extreme environments, short-wave communication is enabled. The built-in environmental sensor continuously monitors the terminal shell tightness, internal temperature and humidity, and battery health. The tightness meets the IP68 standard, the temperature and humidity adaptation range is from -40 degrees Celsius to 70 degrees Celsius, and the battery charge and discharge cycle exceeds 1000 times. When an abnormality occurs, an alarm is triggered and automatically switched to the standby module; Intelligent analysis and automated response include edge computing and disaster identification, as well as hierarchical alarm and linkage control. Specifically, an NPU chip with a computing power of not less than 4 TOPS is installed to process sensor data in real time, run the YOLOv5 model, with an input resolution of 1280×720 and a frame rate of 30 FPS, to identify 10 types of disaster characteristics such as fire, collapse, toxic gas concentration, and vital signs. The identification accuracy is not less than 95%. After the data is locally encrypted, it is uploaded to the command center through the 470 MHz band LoRaWAN or the Ka-band satellite link. The bit error rate of the satellite link is less than 1×10⁻ 6 , and a three-dimensional geographic information heat map is synchronously generated. The coordinates adopt the WGS84 standard with an accuracy of 0.1 meters. Three-level alarm thresholds are set: the yellow alarm trigger condition is that the PM2.5 concentration is greater than 150 micrograms per cubic meter, the orange alarm trigger condition is that the environmental temperature is greater than 50 degrees Celsius or the carbon monoxide concentration is greater than 50 ppm, and the red alarm trigger condition is that the PM2.5 concentration is greater than 500 micrograms per cubic meter or the temperature is greater than 60 degrees Celsius. After the alarm is triggered, the sound and light alarm system is started, the sound pressure level reaches 120 decibels, and the frequency covers 300 to 5000 Hz. The evacuation instructions are automatically broadcast to the surrounding terminals, and the fire protection and medical systems are linked through the JSON data interface. The query volume per second is not less than 1000 times, the response time is less than 200 milliseconds, the disaster coordinates and the vital signs data of the wounded are pushed, and the drone is started to perform aerial monitoring at a resolution of 1080P and a frame rate of 60 Hz; Remote maintenance and cross-platform collaboration include zero-touch operation and maintenance, OTA upgrades, and multi-system data fusion. Specifically, based on the TR-069 protocol, it monitors the CPU utilization rate, memory occupancy rate, and battery health of the terminal in real time. When an anomaly occurs, it generates a diagnostic report containing a fault code, GPS coordinates, and a heat map of network quality. It completes the OTA upgrade of the A / B partition design via a satellite link. The incremental package size does not exceed 200MB, and the upgrade takes less than 5 minutes. It supports breakpoint resumption and automatic rollback in case of MD5 verification failure. The operation and maintenance platform automatically matches spare part inventory and dispatches drones or mobile command vehicles to replace the explosion-proof solid-state drive or the Type-C interface module. The spare parts support hot plugging and full-disk encryption. The standardized data interface is compatible with the HTTPS API of the fire 119 system, the HL7 FHIR protocol of the medical emergency platform, and the Skynet monitoring system, enabling multi-terminal synchronization of disaster videos, GIS maps, and emergency plans. The video resolution is 720P, the frame rate is 30FPS, and the GIS map supports dynamic geographical fence marking; Full-scenario adaptive verification includes extreme environment stress testing, as well as human-computer interaction and electromagnetic compatibility verification. Specifically, it simulates a sandstorm environment with a particle concentration greater than 15 grams per cubic meter and runs continuously for 72 hours to verify that the multi-hop delay of the self-organizing network is less than 200 milliseconds and the bit error rate of the satellite link is less than 1×10⁻ 6 , the sensitivity error of the touch screen is less than 5%. It simulates a heavy rain environment with a rainfall of 50 millimeters per hour and lasts for 12 hours to verify that the Type-C interface is free of water seepage and the shell protection performance meets the IP68 standard. The blind test team verifies that the voice wake-up time is less than 0.8 seconds, the wake-up word recognition rate is not less than 98%, the touch response time is less than 0.3 seconds, and the interface misoperation rate is less than 2%. It passes the GB / T 17626.6 electromagnetic compatibility standard, with a radio frequency field inductive reactance intensity of 10 volts per meter, a frequency band covering 80MHz to 1GHz, and a spurious emission intensity less than -36dBm, meeting the industrial electromagnetic environment requirements of EN 301 489-1.

[0039] By integrating multi-mode communication with an intelligent decision-making mechanism, the communication terminal significantly improves the emergency response efficiency in extreme environments. It adopts dynamic link management technology to achieve seamless switching between different communication modes, effectively overcoming the information island problem of traditional devices in scenarios of network disconnection or electromagnetic interference, and ensuring the stable transmission of critical data under complex terrains and adverse weather conditions. At the level of disaster identification, the terminal relies on an embedded intelligent analysis module to greatly shorten the detection cycle of disaster characteristics, achieve accurate assessment and hierarchical early warning of multi-dimensional environmental risks, and quickly mobilize rescue resources through a multi-system coordination mechanism, forming a closed-loop management system from on-site perception to command and dispatch. The built-in autonomous maintenance system of the device significantly reduces the difficulty of manual operation and maintenance, supports remote diagnosis and security upgrades, and ensures the reliability of the hardware during long-term deployment. The standardized data interface design breaks down the information barriers of cross-domain rescue platforms, strengthens the emergency coordination ability of multiple departments, and enables the efficient integration of video streams, geographical information, and vital sign data. Through a rigorous environmental verification system, the terminal demonstrates excellent performance in physical protection, human-computer interaction, and anti-interference. The touch response and voice command recognition accuracy meet the requirements of emergency operations, and the electromagnetic compatibility characteristics ensure its stable operation in complex electromagnetic environments. The overall solution takes into account portability and functional completeness, constructs an all-weather and all-terrain three-dimensional emergency communication network, provides real-time situation awareness and decision-making support capabilities for emergency incident handling, and effectively improves the success rate of life rescue and the prevention level of secondary disasters in the affected areas.

[0040] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable civil air defense emergency communication terminal, comprising a storage box (1), characterized in that: A through slot (2) is provided in the middle of the bottom end of the storage box (1). Fixed guide rails (3) are fixedly installed on the front and rear sides near the bottom end inside the storage box (1). Mounting shafts (5) are movably installed on the left and right sides of the storage box (1). A support frame (4) is fixedly installed on the outer side of the mounting shaft (5). The support frame (4) rotates relative to the storage box (1) through the mounting shaft (5). A linkage assembly (12) is installed between the two support frames (4). Movable plates (7) are installed on the left and right sides near the top end of the linkage assembly (12). A support assembly (11) is provided at the top end of the linkage assembly (12). The left and right sides of the bottom end of the support assembly (11) are connected to the positions near the top ends between the two movable plates (7). A communication terminal (10) is installed at the top end of the support assembly (11). When the support assembly (11) and the linkage assembly (12) are in the initial state, the support frame (4) is parallel to the bottom end of the storage box (1), and the communication terminal (10) is completely located inside the storage box (1).

2. The portable civil air defense emergency communication terminal according to claim 1, wherein: Guide blocks (9) are installed at the front and rear ends of the movable plate (7). The movable plate (7) is movably clamped with the two fixed guide rails (3) through the guide blocks (9). The movable plate (7) moves left and right relative to the fixed guide rail (3).

3. The portable civil air defense emergency communication terminal according to claim 2, wherein: A threaded sleeve (8) is fixedly installed in the middle of the movable plate (7). A bidirectional lead screw (6) is movably installed in the middle of the storage box (1). The bidirectional lead screw (6) is threadedly sleeved with the two threaded sleeves (8). The thread directions on the left and right sides of the bidirectional lead screw (6) are the same as the thread directions inside the two threaded sleeves (8).

4. The portable civil air defense emergency communication terminal according to claim 3, characterized in that: The support assembly (11) includes first fixed seats (111). The number of the first fixed seats (111) is two and they are respectively connected to the positions near the top ends on the inner sides of the two movable plates (7). One ends of the first fixed seats (111) away from the movable plates (7) are movably connected to support rods (113) through rotating shafts.

5. The portable civil air defense emergency communication terminal according to claim 4, characterized in that: One ends of the support rods (113) away from the first fixed seats (111) are movably connected to second fixed seats (112) through rotating shafts. The support assembly (11) further includes a support platform (114). The left and right sides of the bottom end of the support platform (114) are connected to the top ends of the two second fixed seats (112). The top end of the support platform (114) is connected to the bottom end of the communication terminal (10).

6. The portable civil air defense emergency communication terminal according to claim 5, characterized in that: The linkage assembly (12) includes third fixed seats (121). The number of the third fixed seats (121) is two and they are respectively connected to the positions near the bottom ends on the inner sides of the two movable plates (7). One ends of the third fixed seats (121) away from the movable plates (7) are movably connected to connecting rods (123) through rotating shafts.

7. The portable civil air defense emergency communication terminal according to claim 6, wherein: One end of the connecting rod (123) far from the third fixed seat (121) is movably connected to a fourth fixed seat (122) through a rotating shaft. The linkage assembly (12) further includes a movable frame (124) at the bottom end of the storage box (1), and the left and right sides of the top end of the movable frame (124) are connected to the bottom ends of the two fourth fixed seats (122).

8. The portable civil air defense emergency communication terminal according to claim 7, wherein: Both the left and right sides of the movable frame (124) are fixedly provided with fifth fixed seats (125). One end of each fifth fixed seat (125) far from the movable frame (124) is movably connected to a support rod (127) through a rotating shaft. One end of each support rod (127) far from the fifth fixed seat (125) is movably connected to a sixth fixed seat (126) through a rotating shaft, and the other end of the sixth fixed seat (126) is connected to the inner side surface of the support frame (4).

9. The portable civil air defense emergency communication terminal according to claim 8, characterized in that: When the distance between the two movable plates (7) is at the maximum value, the support assembly (11) and the linkage assembly (12) are in the initial state, and all communication terminals (10) are located inside the storage box (1), and the support frame (4) and the bottom end of the storage box (1) are in a parallel relationship with each other.

10. The working method of a portable civil air defense emergency communication terminal according to claim 1, characterized in that: It includes the following steps: S1: Dynamic switching and self-check of multi-mode communication links; S2: Intelligent analysis and automated response; S3: Remote maintenance and cross-platform collaboration; S4: Full-scenario adaptive verification; The dynamic switching and self-check of the multi-mode communication link includes starting self-check, determining the link priority, and real-time monitoring of the three-proof performance. Specifically, after the terminal is powered on, it automatically performs hardware self-check, detects the availability of the 5G module, self-organizing network module, Beidou-3 RDSS and RNSS dual-mode chip, and Ka-band high-throughput satellite module, generates a device health report including module status, signal strength, and battery health, and dynamically allocates the communication link priority based on GPS positioning and network signal strength: preferentially select public network 5G or 4G, secondly select the Ka-band satellite link, switch to the self-organizing network multi-hop relay when the network is disconnected, the single-hop transmission distance is at least 3 kilometers, the throughput is not less than 70 Mbps, enable short-wave communication in extreme environments, and the built-in environmental sensor continuously monitors the terminal shell tightness, internal temperature and humidity, and battery health. The tightness meets the IP68 standard, the temperature and humidity adaptation range is from minus 40 degrees Celsius to 70 degrees Celsius, the battery charge and discharge cycle exceeds 1000 times, and an alarm is triggered and automatically switched to the standby module when abnormal; The intelligent analysis and automated response include edge computing and disaster identification, as well as hierarchical warning and linkage control. Specifically, an NPU chip with a computing power of no less than 4 TOPS is installed to process sensor data in real time, run the YOLOv5 model with an input resolution of 1280×720 and a frame rate of 30 FPS to identify 10 types of disaster characteristics such as fire, collapse, toxic gas concentration, and vital signs, with an identification accuracy of no less than 95%. After local data encryption, the data is uploaded to the command center via the 470 MHz band LoRaWAN or the Ka-band satellite link, and the bit error rate of the satellite link is less than 1×10⁻ 6 , and a three-dimensional geographic information heat map is generated synchronously. The coordinates adopt the WGS84 standard with an accuracy of 0.1 meters. Three-level warning thresholds are set: the yellow warning is triggered when the PM2.5 concentration is greater than 150 micrograms per cubic meter, the orange warning is triggered when the ambient temperature is greater than 50 degrees Celsius or the carbon monoxide concentration is greater than 50 ppm, and the red warning is triggered when the PM2.5 concentration is greater than 500 micrograms per cubic meter or the temperature is greater than 60 degrees Celsius. After the warning is triggered, an audible and visual alarm system is activated, with a sound pressure level reaching 120 decibels and a frequency coverage of 300 to 5000 Hz. The evacuation instructions are automatically broadcast to the surrounding terminals, and the fire and medical systems are linked through the JSON data interface, with a query volume of no less than 1000 times per second and a response time of less than 200 milliseconds. The disaster coordinates and the vital sign data of the wounded are pushed, and the drone is started to perform aerial monitoring at a resolution of 1080P and a frame rate of 60 Hz; The remote maintenance and cross-platform collaboration include zero-touch operation and maintenance, OTA upgrade, and multi-system data integration. Specifically, based on the TR-069 protocol, it monitors the CPU utilization rate, memory occupancy rate, and battery health of the terminal in real time. When an anomaly occurs, it generates a diagnostic report containing a fault code, GPS coordinates, and a heat map of network quality. It completes the OTA upgrade of the A / B partition design through a satellite link. The size of the incremental package does not exceed 200MB, and the upgrade takes less than 5 minutes. It supports breakpoint resumption and automatic rollback in case of MD5 verification failure. The operation and maintenance platform automatically matches the spare parts inventory and schedules drones or mobile command vehicles to replace the explosion-proof solid-state drive or Type-C interface module. The spare parts support hot plugging and full disk encryption. The standardized data interface is compatible with the HTTPS API of the fire 119 system, the HL7 FHIR protocol of the medical emergency platform, and the public security sky network monitoring. It realizes multi-terminal synchronization of disaster videos, GIS maps, and emergency plans. The video resolution is 720P, the frame rate is 30FPS, and the GIS map supports dynamic geographical fence marking; The full-scenario adaptive verification includes extreme environmental stress testing and human-computer interaction and electromagnetic compatibility verification. Specifically, simulate a sandstorm environment with a particle concentration greater than 15 grams per cubic meter and continuously operate for 72 hours to verify that the multi-hop delay of the ad-hoc network is less than 200 milliseconds and the satellite link bit error rate is less than 1×10⁻ 6 , the sensitivity error of the touch screen is less than 5%. Simulate a rainstorm environment with a rainfall of 50 millimeters per hour and continuously operate for 12 hours to verify that the Type-C interface has no water seepage and the shell protection performance meets the IP68 standard. The blind test team verifies that the voice wake-up time is less than 0.8 seconds, the wake-up word recognition rate is not less than 98%, the touch response time is less than 0.3 seconds, and the interface misoperation rate is less than 2%. It passes the GB / T 17626.6 electromagnetic compatibility standard, with a radio frequency field inductive reactance intensity of 10 volts per meter, a frequency band covering 80 MHz to 1 GHz, and a spurious emission intensity less than -36 dBm, meeting the EN 301 489-1 industrial electromagnetic environment requirements.

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