A wearable vital sign monitoring bracelet for disaster rescue

Abstract

The application discloses a wearable vital sign monitoring bracelet for disaster rescue, which comprises a watch body, a watchband, a display screen and a camera. The monitoring hardware unit comprises a main control module, a sensing module, a power module and a communication module, and an SOS trigger button is further arranged. The auxiliary mechanism comprises a moving assembly, an elastic member, a rotating groove, a rotating shell and a physiological sensing probe. When worn, the elastic member pushes the physiological sensing probe to adhere to the skin, and the muscle deformation can drive the rotating shell to adaptively rotate. The sensing module collects physiological data and transmits the data to the main control module for processing. The data can be displayed locally or transmitted remotely, and the camera synchronously collects on-site images. The loudspeaker automatically alarms when the parameters are abnormal, and pressing the SOS trigger button can synchronously upload the positioning and vital signs. The waterproof external interface supports charging and data export. The bracelet structure is adapted to rescue actions, the vital sign collection is stable, the functions of monitoring, shooting and one-key rescue are integrated, the rescue response process is shortened, and the bracelet is suitable for various disaster rescue scenes.

Description

Technical Field

[0001] This invention relates to the field of wearable monitoring equipment technology for disaster relief, specifically a wearable vital signs monitoring bracelet for disaster relief. Background Technology

[0002] In current disaster relief operations, fixed monitoring equipment or simple wristbands are commonly used to collect vital signs of personnel. Fixed equipment can only be used in designated areas and has poor portability. Ordinary wristbands only use rigid fixed physiological sensor probes, which have a simple structure and can only collect basic vital signs. They can be equipped with basic transmission modules to transmit heart rate and body temperature data. Some devices have added shooting buttons to record on-site images, which can meet the basic vital sign monitoring needs in static scenarios and are widely used in routine emergency rescue, outdoor inspection and other work scenarios.

[0003] Existing monitoring wristbands lack adaptive adjustment mechanisms for their physiological sensor probes. During activities like running, climbing, or carrying heavy loads, wrist muscle deformation can easily cause the sensor probes to separate from the skin, resulting in intermittent signals and data loss. Furthermore, existing devices have fragmented functions; multiple peripherals are required for image recording, emergency alarms, and offline data export, making them cumbersome to carry. The alarm operation process is also cumbersome, and location and vital sign information cannot be uploaded simultaneously during an emergency, making it difficult for command centers to promptly grasp the complete status of those in distress, hindering on-site rescue and response. Therefore, we propose a wearable vital sign monitoring wristband for disaster relief. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a wearable vital sign monitoring bracelet for disaster relief, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a wearable vital sign monitoring bracelet for disaster relief, comprising a watch body, a watch strap installed on the outside of the watch body, and a display screen and a camera installed on the upper surface of the watch body; The monitoring hardware unit, sealed within the inner cavity of the watch body, includes a main control module, a sensing module, a power supply module, and a communication module. It collects physiological signals through the sensing module, processes the data output by the sensing module through the main control module, supplies power to various electrical components through the power supply module, and transmits device data to the outside through the communication module. The auxiliary mechanism includes a moving component, an elastic member, a rotating groove, a rotating shell, and a physiological sensing probe.

[0006] Preferably, the auxiliary mechanism applies a pre-tightening elastic force towards the wrist to the rotating shell through the elastic member, accommodates the rotation of the rotating shell through the rotating groove, and collects human physiological signals through the physiological sensing probe. The physiological sensing probe is electrically connected to the physiological sensing chip through a shielded wire. The moving component is assembled to the inside of the watch strap by a detachable buckle to shorten the distance between the physiological sensing probe and the skin. Both ends of the elastic member are fixedly connected to the moving component to fix the positions of the two ends of the elastic member and stabilize the direction of the elastic force output. The rotating groove is integrally formed inside the moving component to form a unified limiting space. This design reduces the need for assembling independent parts. The upper part of the rotating shell is rotatably embedded inside the rotating groove, limiting the movement of the rotating shell to within the groove and preventing the physiological sensor probe from shifting or falling off. The physiological sensor probe is embedded on the side of the rotating shell facing the wrist, with the bottom surface of the physiological sensor probe for contacting the skin fully exposed. The rotating shell only covers the sidewalls and back of the physiological sensor probe. The inner wall of the rotating shell has a matte light-absorbing layer to prevent ambient light reflection from interfering with the acquisition of physiological signals. The groove opening has an anti-detachment protrusion ring. The elastic component is an elastic element, including but not limited to compression springs, tension springs, elastic plastic parts, and metal springs.

[0007] Preferably, the watchband is designed to wrap around the wearer's wrist to accommodate wrists of different sizes, thus providing a comfortable fit for different individuals. The watchband, relying on its own structure, secures and fastens the bracelet, preventing it from slipping off during wear. When the wrist skin is deformed by muscle compression, the physiological sensor probe drives the rotating shell to rotate adaptively along the rotating groove. The elastic component simultaneously extends and retracts to maintain a tight fit between the physiological sensor probe and the skin, ensuring continuous contact between the physiological sensor probe and the skin.

[0008] Preferably, the monitoring hardware unit is located inside the device body to seal and protect the electrical module, thus isolating it from sand, moisture, and impact damage to the circuit. The sensing module is connected to the physiological sensing probe to transmit the raw signals collected by the probe, which are then sent to the circuit for processing. The main control module establishes signal transmission paths with the display screen, camera, and communication module to enable multi-channel signal communication, synchronously receiving images, distributing and displaying them, and remotely transmitting data.

[0009] Preferably, the monitoring hardware unit further includes an SOS trigger button, a speaker, a waterproof external interface, and a start / stop button. The SOS trigger button and the start / stop button are both mounted on the outer wall of the watch body, the speaker is embedded in the side wall of the watch body, and the waterproof external interface is located on the side of the watch body.

[0010] Preferably, the SOS trigger button, speaker, waterproof external interface, and start / stop button are all electrically connected to the main control module, and the waterproof external interface is synchronously connected to the power module for external power input, which serves to charge the built-in battery.

[0011] Preferably, the start / stop button is connected to the power supply circuit of the power module, which is used to connect the main power supply line in series, and directly cut off or connect the power supply to the whole machine; the on / off state of the start / stop button controls the power module to output power to the whole machine, and is used to manually switch the power supply path, which plays the role of power-on and power-off control of the equipment, and controls the conduction and disconnection of the power supply path of the whole machine by pressing the button.

[0012] Preferably, the sensing module collects physiological signals of heart rate, blood oxygen, and body temperature and completes signal conversion to pick up three core vital signs, playing a role in comprehensively monitoring the basic vital signs of the human body. The converted raw physiological data is sent to the main control module for processing, which is used to send the basic data to the core unit, providing raw materials for subsequent judgment and transmission. The main control module is electrically linked with the speaker and SOS trigger button. The wireless communication chip integrates a positioning and transmission module, and the waterproof external interface has the functions of charging the whole machine, exporting local data, and wired connection to external devices.

[0013] Preferably, the main control module transmits the processed vital sign data to the display screen for display, outputting standardized monitoring values ​​so that the wearer can view their own vital signs in real time; the main control module connects to the communication module, which transmits the processed vital sign data to the outside world, packaging and organizing the monitoring information for remote transmission, so that rescue personnel can remotely view vital signs; the camera collects images of the scene environment and transmits the image data to the main control module, so as to synchronously record the rescue scene environment and enable the rear to keep abreast of the scene situation.

[0014] Preferably, after the main control module identifies vital signs parameters transmitted by the sensor module that exceed the safe range, it automatically compares them with preset safety thresholds to autonomously determine abnormal physical conditions; it sends a drive signal to the speaker to trigger an audible alert, promptly informing the wearer of abnormal physical indicators; when the SOS trigger button is pressed, the main control module simultaneously retrieves location information and real-time vital signs data to integrate these two key pieces of information, providing a complete report of the distressed person's condition; it sends a distress signal through the communication module to remotely push emergency data packets, quickly sending a request for help to the rescue command center; and it has a waterproof outer interface for connecting to external lines for charging the power module, exporting data from the main control module, and connecting to external devices.

[0015] This invention provides a wearable vital sign monitoring bracelet for disaster relief, which has the following beneficial effects: 1. This invention utilizes the cooperative structure of the elastic component, rotating groove, and rotating shell in the auxiliary mechanism. During disaster rescue activities such as running, climbing, and carrying heavy loads, the wrist muscle contraction of the wearer can drive the rotating shell to rotate adaptively within the rotating groove. The elastic component continuously provides clamping force, ensuring that the physiological sensor probe remains in close contact with the wrist skin. This effectively prevents the physiological sensor probe from detaching or the signal from being interrupted due to limb movement, thus ensuring continuous and stable collection of vital sign data in complex movement scenarios during disaster rescue. 2. This wristband integrates a sensor module, SOS trigger button, speaker, camera and other functional components. Relying on the monitoring hardware unit, it realizes multiple functions such as vital sign collection, local data display, remote data transmission, on-site image acquisition and one-click emergency call. No additional peripherals are required. It can be adapted to various disaster rescue scenarios such as plateau, jungle and ruins, and quickly complete the monitoring of the life status of disaster victims and rescuers and emergency assistance, reducing the types of on-site rescue equipment. 3. The wristband is equipped with an independent SOS trigger button and matching data transmission logic. In emergency situations such as serious injury or loss of contact, a single press can simultaneously upload location and real-time vital signs data, quickly sending out distress signals, shortening the emergency call response process at disaster sites, and facilitating rear rescue command personnel to quickly grasp the location and physical condition of the distressed persons, thereby improving the efficiency of rescue and disposal of distressed persons. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the rear-side structure of the present invention; Figure 3 This is a schematic diagram of the monitoring hardware unit structure of the present invention; Figure 4 This is a schematic diagram of the auxiliary mechanism connection structure of the present invention; Figure 5 This is a system control framework diagram of the present invention; Figure 6 This is a flowchart of the equipment operation steps of the present invention; Figure 7 This is a schematic diagram of the watch strap fastening structure of the present invention; Figure 8 This is a schematic diagram of the monitoring hardware unit structure of the present invention; Figure 9 This is a schematic cross-sectional view of the side of the body of the present invention; Figure 10 for Figure 9 The enlarged structural diagram at point A is shown.

[0017] In the diagram: 1. Watch body; 2. Watch strap; 3. Display screen; 4. Camera; 5. Monitoring hardware unit; 51. Main control module; 52. Sensor module; 53. SOS trigger button; 54. Speaker; 55. Waterproof external interface; 56. Power module; 57. Communication module; 58. Start / stop button; 6. Auxiliary mechanism; 61. Moving component; 62. Elastic component; 63. Rotating groove; 64. Rotating shell; 65. Physiological sensor probe. Detailed Implementation

[0018] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0019] like Figures 1-10 As shown, the present invention provides a technical solution: a wearable vital sign monitoring bracelet for disaster relief, comprising a watch body 1, a watch strap 2 installed on the outside of the watch body 1, and a display screen 3 and a camera 4 installed on the upper surface of the watch body 1; a monitoring hardware unit 5, comprising a main control module 51, a sensing module 52, a power module 56, and a communication module 57, which collects physiological signals through the sensing module 52, processes the data output by the sensing module 52 through the main control module 51, supplies power to various electrical components through the power module 56, and transmits device data to the outside through the communication module 57; an auxiliary mechanism 6, comprising a moving component 61, an elastic member 62, a rotating groove 63, a rotating shell 64, and a physiological sensing probe 65, which applies a pre-tightening elastic force toward the wrist to the rotating shell 64 through the elastic member 62, accommodates the rotation of the rotating shell 64 through the rotating groove 63, and collects human physiological signals through the physiological sensing probe 65.

[0020] In this embodiment, the watch body 1 is made of glass fiber modified military-grade polycarbonate, with added high and low temperature resistant and sand and dust resistant additives. It is suitable for an ambient temperature range of -40℃ to 60℃. The overall dimensions are 52mm long, 38mm wide, and 14mm thick, with rounded corners and an IP68 protection rating. The watch body 1 has pre-drilled slots for watch strap mounting on both sides, and an inlay groove on the upper surface for fixing the display screen 3 and camera 4. The internal sealed cavity accommodates the entire monitoring hardware unit 5. A waterproof external interface 55 is provided on the side for mounting, and a speaker 54 is pre-drilled on the side wall. An SOS trigger button 53 and a start / stop button 58 are pre-drilled on the outer wall. The watch strap 2 is made of weather-resistant liquid medical-grade silicone, which has tear-resistant and sweat corrosion-resistant properties. The strap width is 20mm, and the length is segmented and adjustable to fit different wrist circumferences from 120mm to 195mm. An installation groove is provided in the middle of the inner side of the watch strap 2 for fixing the moving component 61 of the auxiliary mechanism 6. The ends of the watch strap 2 use a Velcro structure to wrap around and restrain the wrist. Display screen 3 is a 1.06-inch outdoor AMOLED screen with a resolution of 408×480, embedded in a groove on the upper surface of the watch body 1. It is connected to the main control module 51 via a ribbon cable and is used to display data such as heart rate, blood oxygen, body temperature, battery level, and location. Camera 4 uses a 2-megapixel low-light CMOS miniature lens, paired with a low-light supplemental LED, and is positioned on one side of display screen 3. It captures images of the surrounding environment and transmits them to the main control module 51 for unified processing. The monitoring hardware unit 5 is housed within the internal cavity of the watch body 1 and includes the main control module 51, sensor module 52, power module 56, and communication module 57. It relies on sensor module 52 to collect physiological signals, main control module 51 to perform data processing, power module 56 to supply power to the electrical components of the entire device, and communication module 57 to transmit device data to the outside. The auxiliary mechanism 6 is fixed in the mounting groove inside the watch strap 2. It includes a moving component 61, an elastic member 62, a rotating groove 63, a rotating shell 64, and a physiological sensor probe 65. The elastic member 62 applies a clamping force to the rotating shell 64, the rotating groove 63 limits the rotation range of the rotating shell 64, and the physiological sensor probe 65 collects human physiological signals. The physiological sensor probe 65 is electrically connected to the physiological sensor chip through a shielded wire.

[0021] During assembly, the two ends of the watch strap 2 are snapped into the slots on both sides of the watch body 1 to complete the external assembly. The display screen 3 and camera 4 are sealed and embedded into the corresponding grooves on the upper surface of the watch body 1. All electrical components of the monitoring hardware unit 5 are integrated and arranged in the sealed space inside the watch body 1. The auxiliary mechanism 6 is snapped and fixed to the inside of the watch strap 2. The physiological sensor probe 65 is arranged facing the skin of the wrist. The sensor module 52 and the physiological sensor probe 65 establish a signal path through the shielded wire.

[0022] In this embodiment, the auxiliary mechanism 6 includes a movable component 61, an elastic member 62, a rotating groove 63, a rotating shell 64, and a physiological sensing probe 65. The elastic member 62 applies a pre-tightening force towards the wrist to the rotating shell 64, the rotating groove 63 accommodates the rotation of the rotating shell 64, and the physiological sensing probe 65 collects human physiological signals. The movable component 61 is detachably fastened to the inside of the watch strap 2. Both ends of the elastic member 62 are fixedly connected to the movable component 61. The rotating groove 63 is integrally formed inside the movable component 61. The upper part of the rotating shell 64 is rotatably embedded inside the rotating groove 63. The physiological sensing probe 65 is embedded on the side of the rotating shell 64 facing the wrist and is used for skin contact for data collection. The bottom surface is completely exposed, and the rotating shell 64 only covers the side wall and back of the physiological sensing probe 65. The inner wall of the rotating shell 64 is provided with a matte light-absorbing layer to avoid ambient light reflection interfering with the acquisition of physiological signals. The groove of the rotating slot 63 is provided with an anti-slip protrusion ring. The watch strap 2 is set around the wearer's wrist. The watch strap 2 completes the basic binding and fixation of the bracelet based on its own structure. The elastic component 62 synchronously expands and contracts to maintain the physiological sensing probe 65 in close contact with the skin. When the wrist muscles contract and squeeze the physiological sensing probe 65, the rotating shell 64 adaptively rotates slightly along the rotating slot 63. The elastic component 62 synchronously expands and contracts to maintain the probe in continuous contact with the skin. The elastic component 62 is an elastic element, including but not limited to compression springs, tension springs, elastic plastic parts and metal springs.

[0023] The auxiliary mechanism 6 is an adaptive elastic rotation fitting component, integrally assembled inside the watchband 2, and includes a moving component 61, an elastic member 62, a rotation groove 63, a rotation shell 64, and a physiological sensing probe 65. The moving component 61 is integrally molded from PA66 wear-resistant nylon, with a rectangular base measuring 22mm in length, 16mm in width, and 3mm in thickness. A snap-fit ​​structure on the back of the base engages with the mounting groove inside the watchband 2. A recessed structure on the front of the base forms the rotation groove 63. The rotation groove 63 is a circular groove with a depth of 2.5mm and an inner diameter of 17mm. The inner wall of the groove is smoothed to reduce rotational friction, providing rotational limiting space for the rotation shell 64. The rotation shell 64 is covered with silicone on the outside and has an internal PC support frame. It is a hemispherical rotating body with an outer diameter of 16.8mm and a height of 2.2mm. The top is fully embedded inside the rotation groove 63, allowing for complete omnidirectional rotation. The physiological sensing probe 65 is fixedly mounted on the side of the rotation shell 64 facing the wrist. The elastic component 62 is a micro compression elastic component made of stainless steel with a wire diameter of 0.3mm. The original length of a single component is 4mm, and the maximum compression stroke is 3mm. Two components are arranged symmetrically. One end of the elastic component 62 is fixed to the inner wall of the moving component 61, and the other end is fixed to the outer wall of the rotating shell 64. Under normal conditions, it continuously provides a pressing force to the rotating shell 64 in the direction of the wrist.

[0024] The outer layer of the physiological sensing probe 65 is a medical flexible silicone pad, and the interior integrates PPG photoelectric acquisition contacts. The overall diameter is 8mm. It is pasted and fixed on the bottom surface of the rotating shell 64. The wire passes through the internal channel of the strap 2 and is connected to the sensing module 52. During assembly, the movable component 61 is fixed to the inside of the watch strap 2 by a buckle. The two ends of the two elastic members 62 are fixedly connected to the movable component 61 respectively. The rotating groove 63 is integrally formed with the movable component 61. The top of the rotating shell 64 is embedded in the rotating groove 63. The physiological sensor probe 65 is fixed on the side of the rotating shell 64 facing the wrist. The watch strap 2 wraps around the wrist to complete the overall restraint. The inner wall of the rotating groove 63 is sprayed with a wear-resistant self-lubricating coating to reduce the rotational friction resistance of the rotating shell 64. After the device is worn, when there is no limb movement, the two elastic components 62 synchronously output a stable clamping force, pushing the rotating shell 64 to make the physiological sensor probe 65 closely adhere to the skin to collect physiological signals. When the wearer runs, climbs, carries weight, or crawls, the wrist muscles contract, and the skin squeezes the physiological sensor probe 65 in the opposite direction, causing the rotating shell 64 to rotate along the inside of the rotating groove 63. After the muscle deformation disappears, the elastic component 62 rebounds and resets, always maintaining the physiological sensor probe 65 in contact with the skin, and the collected physiological signals are continuously and stably transmitted to the sensor module 52. This embodiment relies on the cooperative structure of elastic component 62, rotating groove 63, and rotating shell 64 to ensure that the physiological sensing probe 65 will not detach from the skin during large-scale limb movements, reducing signal interruption and data loss. The entire assembly relies solely on mechanical structure for fit and adjustment, contains no electronic components, and is unaffected by high or low temperatures, dust, humidity, or electromagnetic interference. It has a low failure rate during continuous field operations. The symmetrical arrangement of the two elastic components 62 ensures uniform force distribution, stably maintaining the acquisition position of the physiological sensing probe 65, reducing data errors caused by movement, and meeting the requirements for stable signal acquisition of wearable monitoring devices.

[0025] In this embodiment, the monitoring hardware unit 5 includes a main control module 51, a sensing module 52, a power supply module 56, and a communication module 57. It collects physiological signals through the sensing module 52, processes the data output by the sensing module 52 through the main control module 51, supplies power to various electrical components through the power supply module 56, and transmits device data externally through the communication module 57. The monitoring hardware unit 5 is located inside the watch body 1. The sensing module 52 is signal-connected to the physiological sensing probe 65, and the main control module 51 establishes signal transmission paths with the display screen 3, the camera 4, and the communication module 57, respectively. Hardware unit 5 also includes an SOS trigger button 53, a speaker 54, a waterproof external interface 55, and a start / stop button 58. The SOS trigger button 53 and the start / stop button 58 are both mounted on the outer wall of the meter body 1. The speaker 54 is embedded in the side wall of the meter body 1, and the waterproof external interface 55 is located on the side of the meter body 1. The SOS trigger button 53, speaker 54, waterproof external interface 55, and start / stop button 58 are all electrically connected to the main control module 51. The waterproof external interface 55 is synchronously connected to the power module 56. The start / stop button 58 is connected to the power supply circuit of the power module 56. The power supply module 56 controls the on / off state of the device, outputting electrical energy to the entire unit; the sensor module 52 collects physiological signals such as heart rate, blood oxygen, and body temperature, and performs signal conversion. The converted raw physiological data is then sent to the main control module 51 for processing; the main control module 51 sends the processed vital sign data to the display screen 3 for display; the main control module 51 interfaces with the communication module 57, which transmits the processed vital sign data externally; the camera 4 collects environmental images and transmits the image data to the main control module 51; the main control module 51 identifies vital sign parameters transmitted by the sensor module 52 that exceed the safe range. After counting, a drive signal is sent to speaker 54; when the SOS trigger button 53 is pressed, the main control module 51 simultaneously retrieves the positioning information and real-time vital signs data, and sends a distress signal to the outside through the communication module 57; the waterproof external interface 55 connects to external lines and is used for charging the power module 56, exporting data from the main control module 51, and connecting to external devices. The main control module 51 is electrically linked with speaker 54 and SOS trigger button 53 respectively. The wireless communication chip integrates a positioning transmission module. The waterproof external interface 55 has the functions of charging the whole machine, exporting local data, and connecting to external devices via wires. The monitoring hardware unit 5 is sealed and arranged inside the cavity of the meter body 1. It consists of a main control module 51, a sensor module 52, a power supply module 56, a communication module 57, an SOS trigger button 53, a speaker 54, a waterproof external interface 55, and a start / stop button 58. The main control module 51 can use an STM32WB55 low-power dual-core chip, equipped with a local edge computing unit and a supporting storage unit that can cache 72 hours of continuous vital sign data. Multiple signal interfaces are respectively connected to the sensor module 52, the display screen 3, the camera 4, the communication module 57, the speaker 54, and the button assembly. The chip can run a lightweight vital sign anomaly detection model and complete local data processing in environments without network or with low bandwidth. The sensing module 52 can integrate a MAX30102 photoelectric sensor, a DS18B20 temperature sensor, and a miniature ECG acquisition contact. It is connected to the physiological sensing probe 65 via a shielded wire to collect heart rate, blood oxygen, and body temperature signals and perform analog-to-digital conversion. As a wearable terminal sensing unit, it can cooperate with non-contact sensing devices inside the unmanned rescue cabin. It uses a CNN-LSTM fusion algorithm to process multi-source data and reduce signal deviations caused by obstruction and movement. The power module 56 is equipped with a 1200mAh explosion-proof lithium polymer battery cell, which can discharge normally in a low-temperature environment of -40℃. It is equipped with multiple voltage regulator circuits, charge and discharge protection chips, and a power detection unit to continuously power the main control module 51, sensing module 52, communication module 57, display screen 3, camera 4, and speaker 54. The waterproof external interface 55 automatically starts the charging circuit when connected to an external power source. The start / stop button 58 is connected in series to the main power supply circuit to control the on / off state of the whole device. The communication module 57 integrates BLE5.3 Bluetooth, NB-IoT, and an encrypted self-organizing network RF unit. It can establish local communication with the unmanned medical transport platform over short distances, and transmit vital signs, location, and distress signals to the command terminal via NB-IoT over long distances. All transmitted data is encrypted with 128-bit AES, complying with relevant data security standards for disaster scenarios. The SOS trigger button 53 is a waterproof silicone button directly connected to the signal interface of the main control module 51; a single press triggers the distress call process. The speaker 54 uses a miniature piezoelectric buzzer, which can output tiered alert tones, emitting continuous sound when parameters are abnormal. The waterproof external interface 55 is a waterproof sealed Type-C interface, simultaneously connecting the power module 56 and the main control module 51, accommodating charging, local data export, and wired connection to external devices. The overall start / stop button 58 is a self-locking waterproof button that controls the on / off state of the overall power supply circuit. During equipment operation, physiological sensor probe 65 collects human physiological signals and transmits them to sensor module 52 for signal conversion and basic noise reduction. After conversion, the data is sent to main control module 51. Main control module 51 runs a filtering algorithm to eliminate noise interference and outputs standardized physiological data. When a body temperature is detected to be higher than 39℃ or lower than 36℃, it automatically marks a critical illness warning. The processed data is pushed to display screen 3 for real-time display. The on-site images collected by camera 4 are compressed and cached in the storage unit of main control module 51, and can be uploaded synchronously with vital sign data. Main control module 51 periodically packages data packages of vital signs, location, and equipment status. The system transmits data externally via communication module 57, enabling data fusion with the non-contact monitoring equipment of the unmanned evacuation platform, merging wearable and in-cabin data. It relies on multiple sets of collected data to dynamically predict the condition of the injured. When the equipment identifies physiological parameters that exceed the safe range, it drives speaker 54 to emit a continuous alert tone. When the personnel press the SOS trigger button 53, the main control module 51 integrates the positioning information and real-time vital sign data, and sends distress data packets at high frequency through communication module 57 until a response is received from the command end. In areas without communication base stations or with weak signals, the main control module 51 locally caches all monitoring data and automatically retransmits it in batches after communication is restored. This embodiment integrates physiological data collection, local computation, remote transmission, audible and visual warnings, and one-click emergency call functions. The wearable wristband can work with the internal monitoring equipment of the unmanned medical transport platform to form a dual-mode monitoring system, filling the gap in real-time monitoring of casualties in complex terrain and nighttime environments. The device is equipped with a lightweight injury assessment algorithm, with a single batch injury recognition latency controlled within 3 seconds and a critical illness recognition accuracy rate of no less than 90%. It eliminates the need for continuous manual assessment by back-end personnel, reducing the bandwidth consumption of long-distance communication. The standardized integration of each module allows it to be ported to unmanned ambulances, medical drones, field shelters, and other equipment. It can also be used for emergency medical drills and casualty monitoring training. The device supports offline caching, encrypted self-organizing network transmission, and stable operation in high and low temperature environments. It can adapt to real-world scenarios such as all-domain disaster relief, cross-regional drills, and deployment in remote high-altitude areas, narrowing the technological gap with similar equipment.

[0026] The working principle and usage process of this invention: The watchband 2 is wrapped around the wearer's wrist to complete the basic fixation of the bracelet. The moving component 61 in the auxiliary mechanism 6 is installed inside the watchband 2. The two ends of the elastic member 62 are respectively fixedly connected to the moving component 61 and the rotating shell 64. The rotating shell 64 is rotatably embedded in the rotating groove 63 opened in the moving component 61. The physiological sensor probe 65 is fixedly installed inside the rotating shell 64. When there is no limb movement, the elastic force generated by the elastic member 62 continuously acts on the rotating shell 64, making the physiological sensor probe 65 close to the wearer's wrist skin. During the wearer's movement, the wrist muscles contract and deform, and the skin exerts a squeezing force on the physiological sensor probe 65, causing the rotating shell 64 to rotate along the rotating groove 63. Relying on the continuous compression force provided by the elastic member 62, the rotating shell 64 can rotate synchronously with the muscle contraction, so that the physiological sensor probe 65 always remains in close contact with the wrist skin. The physiological signals collected by the physiological sensor probe 65 are transmitted to the sensing module 52 inside the monitoring hardware unit 5. The sensing module 52 completes the process. The device collects and converts physiological signals such as heart rate, blood oxygen, and body temperature. The power module 56 continuously supplies power to all electronic components inside the device body 1. The operator controls the start and stop of the device through the start / stop button 58. The main control module 51 receives the raw physiological data output by the sensor module 52 and completes basic calculation processing. The processed vital signs data are displayed intuitively on the display screen 3 and transmitted to the outside through the device's built-in communication module 57. The camera 4 simultaneously collects on-site environmental images to assist rescue personnel in assessing the situation. The speaker 54 can output local sound and light prompts. The waterproof external interface 55 is used for device charging, data export, and docking with external devices. When the vital signs parameters collected by the sensor module 52 exceed the safe range, the main control module 51 automatically triggers an early warning and controls the speaker 54 to emit a prompt sound. In case of emergency scenarios such as serious injury or loss of contact, after the wearer presses the SOS trigger button 53, the main control module 51 simultaneously uploads the location information and real-time vital signs data and sends out a distress signal, completing remote feedback of the life status of personnel at the disaster site and emergency calls for help.

Claims

1. A wearable vital sign monitoring bracelet for disaster relief, comprising a watch body (1); characterized in that: The watch body (1) is fitted with a watch strap (2) on the outside, and a display screen (3) and a camera (4) are fitted on the upper surface of the watch body (1). The monitoring hardware unit (5) sealed inside the body (1) includes a main control module (51), a sensing module (52), a power supply module (56), and a communication module (57). It collects physiological signals through the sensing module (52), processes the data output by the sensing module (52) through the main control module (51), supplies power to each electrical component through the power supply module (56), and transmits device data to the outside through the communication module (57). The auxiliary mechanism (6) includes a moving component (61), an elastic member (62), a rotating groove (63), a rotating shell (64), and a physiological sensing probe (65).

2. A wearable vital signs monitoring bracelet for disaster relief according to claim 1, characterized in that: The auxiliary mechanism (6) applies a pre-tightening elastic force toward the wrist to the rotating shell (64) through the elastic member (62), and accommodates the rotation of the rotating shell (64) through the rotating groove (63). The physiological sensor probe (65) collects human physiological signals and is electrically connected to the physiological sensor chip through a shielded wire. The moving component (61) is assembled to the inside of the watch strap (2) through a detachable buckle. The two ends of the elastic member (62) are fixedly connected to the moving component (61). The rotating groove (63) is integrally formed into the moving component (61). Inside, the upper part of the rotating shell (64) is rotatably embedded in the rotating groove (63). The physiological sensing probe (65) is embedded on the side of the rotating shell (64) facing the wrist. The bottom surface of the physiological sensing probe (65) used to contact the skin is completely exposed. The rotating shell (64) only covers the side wall and back of the physiological sensing probe (65). The inner wall of the rotating shell (64) is provided with a matte light-absorbing layer. The groove opening of the rotating groove (63) is provided with an anti-detachment protrusion ring. The elastic component (62) is an elastic element, including but not limited to compression springs, tension springs, elastic plastic parts and metal springs.

3. A wearable vital sign monitoring bracelet for disaster relief according to claim 2, characterized in that: The watch strap (2) is set around the wearer's wrist. The watch strap (2) completes the basic binding and fixation of the bracelet based on its own structure. When the skin of the wrist is deformed by the muscle compression, the physiological sensor probe (65) drives the rotating shell (64) to rotate adaptively along the rotating groove (63). The elastic component (62) stretches and extends synchronously to maintain the physiological sensor probe (65) in close contact with the skin.

4. A wearable vital signs monitoring bracelet for disaster relief according to claim 1, characterized in that: The monitoring hardware unit (5) is located inside the body (1). The sensing module (52) is connected to the physiological sensing probe (65) and the main control module (51) establishes signal transmission paths with the display screen (3), the camera (4) and the communication module (57) respectively.

5. A wearable vital signs monitoring bracelet for disaster relief according to claim 4, characterized in that: The monitoring hardware unit (5) also includes an SOS trigger button (53), a speaker (54), a waterproof external interface (55), and a start / stop button (58). The SOS trigger button (53) and the start / stop button (58) are both mounted on the outer wall of the meter body (1). The speaker (54) is embedded in the side wall of the meter body (1). The waterproof external interface (55) is opened on the side of the meter body (1).

6. A wearable vital sign monitoring bracelet for disaster relief according to claim 5, characterized in that: The SOS trigger button (53), speaker (54), waterproof external interface (55), and start / stop button (58) are all electrically connected to the main control module (51), and the waterproof external interface (55) is synchronously connected to the power module (56).

7. A wearable vital sign monitoring bracelet for disaster relief according to claim 6, characterized in that: The start / stop button (58) is connected to the power supply circuit of the power module (56), and the on / off state of the start / stop button (58) controls the power module (56) to output electrical energy to the whole machine.

8. A wearable vital sign monitoring bracelet for disaster relief according to claim 7, characterized in that: The sensing module (52) collects physiological signals of heart rate, blood oxygen, and body temperature and completes signal conversion. The converted raw physiological data is sent to the main control module (51) for processing. The main control module (51) is electrically linked with the speaker (54) and the SOS trigger button (53). The wireless communication chip integrates a positioning transmission module. The waterproof external interface (55) has the functions of charging the whole machine, exporting local data, and wired docking with external devices.

9. A wearable vital sign monitoring bracelet for disaster relief according to claim 8, characterized in that: The main control module (51) transmits the processed vital signs data to the display screen (3) for display; the main control module (51) is connected to the communication module (57), and the communication module (57) transmits the processed vital signs data to the outside; the camera (4) collects on-site environmental images and transmits the image data to the main control module (51).

10. A wearable vital signs monitoring bracelet for disaster relief according to claim 9, characterized in that: After the main control module (51) identifies vital signs parameters that exceed the safe range transmitted by the sensor module (52), it sends a drive signal to the speaker (54); when the SOS trigger button (53) is pressed, the main control module (51) simultaneously retrieves the positioning information and real-time vital signs data, and sends a distress signal to the outside through the communication module (57); the waterproof external interface (55) connects to external lines and is used for charging the power module (56), exporting data from the main control module (51), and connecting to external devices.

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