49 results about "Head injury" patented technology

The invention relates to a pedestrian head injury assessment method for a vehicle and related equipment. The method comprises the following steps: acquiring a simulation model and impact information of a to-be-evaluated vehicle; inputting the simulation model and the impact information into a pre-trained evaluation model to obtain pedestrian head injury of the to-be-evaluated vehicle output by the evaluation model, the evaluation model is used for extracting metal part features and non-metal part features of the to-be-evaluated vehicle from the simulation model and the impact information, and obtaining the pedestrian head injury according to the metal part features and the non-metal part features. According to the method provided by the invention, the characteristics of the metal part and the non-metal part are respectively extracted, the collision characteristics are differentiated according to the material types, and the material mechanical properties of the vehicle closer to the actual condition during collision are represented, so that a more accurate pedestrian head injury result is obtained, and the vehicle safety test efficiency is improved.

This application discloses a head-mounted neck and shoulder restraint device, relating to the field of medical protective equipment technology. It includes a helmet, face protector, neck protector, and shoulder pads. The face protector is rotatably mounted on the front side of the helmet. The helmet, from the outside in, comprises a hard leather outer layer, an engineering mesh plastic shell middle layer, and a breathable sponge inner layer. The neck protector is fixed to the helmet and tightened with Velcro. The shoulder pads are located on both sides of the helmet and are equipped with straps. This application utilizes the helmet to cushion and protect the head of agitated mental patients who may bump their heads, preventing head injuries. Simultaneously, the face protector, neck protector, and shoulder pads prevent patients from biting themselves or others, thus effectively restraining the patient while protecting both the patient and others from harm.

The utility model relates to the technical field of safety protection appliances, in particular to a fall protection device for old people, which greatly reduces impact force transmitted to the head, remarkably improves reliability and effectiveness of head protection of the old people and greatly reduces the probability of head injury caused by fall of the old people. The head protection cover for the elderly people provides more comprehensive and excellent guarantee for head safety of the elderly people and comprises a protection cover body used for protecting the head, a plurality of through grooves are formed in the cover wall of the protection cover body, a supporting piece arching outwards is fixedly arranged in each through groove, a buffering piece is arranged on the inner wall of each supporting piece, the supporting pieces buffer external force for the first time, and therefore the safety of the elderly people is improved. The protective cover body is arranged in the cap, the cap is provided with a bandage, the two ends of the supporting piece and the protective cover body are integrally formed, gaps are reserved between the top and the bottom of the supporting piece and the protective cover body, and the supporting piece is made of elastic materials.

The utility model discloses a novel backrest handle for protecting passengers, which belongs to the technical field of automobile seats and comprises a seat backrest, a handle, a handle blanking cap and a self-tapping screw. First holes are formed in two ends of the handle, a strip is arranged on the handle blanking cap, a second hole is formed in the end part of the strip, the handle is fixed on the seat backrest through a self-tapping screw, the self-tapping screw sequentially penetrates through the second hole and the first hole, and the handle blanking cap is in interference fit with the handle; the handle assembly is made of rubber materials, on the basis of meeting the requirements of Fanjin laws and regulations, the handle assembly is easy and convenient to install, soft and comfortable in material, good in manufacturability and capable of meeting the requirements of the GB 13057 standard and relieving injuries to the heads of passengers in the back row, the handle assembly is high in structural stability, the key size is easy to guarantee, and the handle assembly can be applied to follow-up platform type development of passenger car handle assemblies. The passenger car seat is suitable for passenger cars with passengers.

The invention discloses a dummy head injury testing device and method for an impact test, the testing device comprises a head assembly, the head assembly comprises a skull, brain tissue, head skin and a sensing device, eye sockets are arranged on the skull, and bionic eyeballs are arranged at the eye sockets; the brain tissue comprises bionic brain tissue and bionic cerebrospinal fluid; the head skin comprises a head skin body and flexible sensing skin arranged on the outer surface of the head skin body, the flexible sensing skin comprises a flexible substrate layer, wire electrodes arranged on the two end faces of the flexible substrate layer respectively and insulating layers covering the wire electrodes, and a plurality of wire electrodes are arranged on the two end faces at intervals. The wire electrodes on the two end faces are orthogonally arranged to form an array structure, and raw materials of the flexible substrate layer comprise silicone rubber and a conductive material. The testing device is good in biological simulation degree, the testing result is closer to the real situation, multiple sensor configuration schemes are provided, and more head injury data can be obtained.

The application discloses a kind of prediction method, device and storage medium of passenger collision head injury grade, relating to injury assessment technical field, which comprises the following steps: first, source domain data and target domain data are obtained;Then the two types of data are preprocessed;Subsequently, the preprocessed source domain data is input into the CNN-LSTM hybrid model for pre-training to obtain a pre-training model;Then, the parameters of the CNN part of the pre-training model are frozen, and the LSTM part and the fully connected layer are fine-tuned using the preprocessed target domain data to obtain a transfer learning model for the target posture;Finally, a ride angle selection model is selected: if greater than the angle threshold, the transfer learning model is used to output the injury grade under the target posture;If less than or equal to the angle threshold, the pre-training model is used to output the injury grade under the standard posture.The method can effectively improve the accuracy of passenger injury prediction during the collision process.

This invention provides a head and neck protection device for rear-end collisions, including a headrest seat, a first buffer assembly, and a limiting mechanism. When a rear-end collision occurs, the impacted vehicle accelerates forward, causing the head of an occupant to strike the first cushion. Upon impact, the first cushion drives a guide seat to move, compressing multiple sets of buffers. At this time, the first cushion and the multiple buffers work together to cushion the impact on the head, improving the device's buffering effect and reducing head injuries. Simultaneously, the movement of the guide seat drives the fixing assembly to release the limiting rod. The driving component then drives the limiting rod to rotate to a second state, so that the arc-shaped portion of the limiting rod faces the first cushion. When the head moves forward due to the impact reaction force, the limiting rod can contact the head, thereby limiting large-scale forward head movement, preventing neck strain, and improving the device's protective effect.

The invention relates to the technical field of vehicle safety design, in particular to a pedestrian protection engine hood inner plate prediction method and device, a vehicle and a medium, and the method comprises the steps: obtaining an engine cabin arrangement space diagram, a head injury index distribution diagram and an outer plate and inner plate contour diagram of a pedestrian protection engine hood to generate a data set; the data set is divided into a training set and a verification set, a data sample comprises a cabin arrangement space diagram, a head injury index distribution diagram and an outer plate contour diagram, and an inner plate contour diagram serves as true value data; training a prediction network model by using a training set, inputting the three types of diagrams, and outputting an inner plate contour diagram; updating model parameters according to the prediction result and the truth value, and evaluating the model by using the verification set until the target performance is achieved; and finally using the trained model to predict the contour of the inner plate. Therefore, the problems of long development period, high cost, low calculation efficiency and the like due to the fact that related technologies depend on reverse simulation to optimize the engine hood inner plate are solved.

The utility model discloses a protection device for elevator detection, and belongs to the field of elevator detection.The protection device for elevator detection comprises a lift car track, a working platform capable of being separated from the top of a lift car is arranged on the lift car track, and electric suction cups used for being adsorbed to the top of the lift car are arranged at the four corners of the bottom of the working platform correspondingly; rail driving assemblies used for driving the operation platform to move on the lift car rails are fixedly installed on the side faces of the operation platform, a protective fence is arranged on the edge of the operation platform, and a hanging net is fixedly installed on the protective fence. According to the protection device for elevator detection, the combination of the electric suction cup and the rail driving assembly enables the platform to run independently of the elevator car, even if the elevator car is out of control, the platform can still be kept stable through the rail, personnel are prevented from falling along with the elevator car, meanwhile, the hanging net covers the upper portion of an operation area, falling objects such as tools and screws are effectively intercepted, and the risk of head injury is reduced.

The utility model discloses a head trauma net bag neck fixing and adjusting structure, and relates to the technical field of medical instruments, the head trauma net bag neck fixing and adjusting structure comprises a neck adjusting assembly, the neck adjusting assembly comprises a neck bandage, the inner wall of the neck bandage is fixedly connected with a cushion, the top of the neck bandage is fixedly connected with a chin fixing cover, and the chin fixing cover is fixedly connected with the neck bandage. The side of the neck bandage is fixedly connected with a first bandage, the inner wall of the first bandage is provided with a hook-and-loop fastener mother tape, the side of the hook-and-loop fastener mother tape is provided with a hook-and-loop fastener son tape, and the other side of the hook-and-loop fastener son tape is fixedly connected with a second bandage; the top of the jaw fixing cover is provided with a wearing adjusting assembly, and the top of the wearing adjusting assembly is provided with a head trauma net bag main body; the size of the neck fixing bandage can be conveniently adjusted, the use requirements of different crowds are met, and the wearing stability of the head trauma net bag is conveniently improved.

The present invention discloses an automobile foam headrest assembly, which relates to the technical field of automobile headrests and aims to solve the technical problems of insufficient safety and comfort of automobile headrests. The assembly comprises a seat back with a safety structure, a seat headrest arranged on the top of the seat back, and a rebound mechanism, an adjustment component, a support component and a massage component arranged inside the seat headrest. The present invention uses two sets of horizontal linear arrays of air leakage cylinders, transmission cylinders and expansion sleeves to axially rotate and switch between horizontal parallel and axial expansion modes. When horizontally parallel, the head applies pressure to cause the expansion sleeves to compress and expand and squeeze each other, which can adaptively shape to fit the head and disperse pressure. During a collision, it absorbs energy in stages and limits displacement, and can also achieve kneading and massage through dynamic pressure. When axially expanded, the expansion sleeve wraps around the back of the head to form a linear support belt, evenly dispersing pressure and reducing the risk of head injury after a collision. And by arranging an elastic structure inside it, it can prevent the headrest from deforming, thereby improving driving comfort and safety.

The invention relates to a vehicle roof assembly with integrated RF transparency for electronic module integration. An example vehicle roof assembly is disclosed that features an outer roof panel made of a radio frequency (RF) transparent polymeric material, such as polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS), or acrylonitrile-styrene-acrylate (ASA). In some examples, the assembly enables direct integration of overhead electrical modules and components, including antennas, into a roof construction, facilitating clear communication with external devices and satellites. The design employs a thin film effect for enhancing protection of occupants during a collision and using an integrated foam material between the outer roof and the inner ceiling to improve thermal and acoustic insulation. By pre-filling electrical components on the roof, the assembly process is simplified, individual unit installation is allowed, and it is possible to achieve full automation in the assembly line. The polymeric structure of the roof also provides enhanced sagging resistance, color selection, and inherent corrosion resistance, and complies with safety standards such as the Head Injury Standard (HIC) value.

A method is disclosed for assisting in evaluating a head injury to a subject caused by a fall event occurring on the subject. The method is performed by a processor and includes the steps of: upon detection of a fall event, obtaining measurement data of the fall event over a period of time including the fall event; and generating an indication for aiding in evaluating the head injury based on the measurement data. The indication includes an animated fall trajectory of the subject's head during the fall event and within a space in which the fall occurs, and velocity data of the subject's head during the fall event.

The present invention discloses an engine hood and a processing method thereof, relating to the technical field of automotive components. The hood comprises an inner panel and an outer panel, wherein ribs are fixedly provided on the outer side of the inner panel. The outer panel is formed by splicing together a plurality of sheet-like outer panel blocks, wherein adjacent outer panel blocks are connected by a multi-directional connection structure provided on the ribs. A buffer layer is filled between the outer panel and the inner panel. The engine hood manufactured using the processing method of the present invention divides the outer panel into sections. In the event of a collision with a pedestrian, the outer panel collision block can rotate within a certain range and sink within a certain depth relative to the adjacent block, squeezing the intermediate buffer layer, reducing the HIC value during a collision and minimizing head injuries.

The embodiment of the invention provides a head injury adjusting method, device and equipment based on a vehicle. The method comprises the following steps: acquiring the acceleration when the head collides with a specific part of a vehicle at a preset speed; according to the accelerated speed, calculating a head damage index of the specific part of the vehicle to the head when the specific part of the vehicle is collided; judging whether the head injury index is within a target injury index range or not; and if the head injury index is not within the target injury index range, adjusting the acceleration to enable the head injury index to be within the target injury index range. In this way, the acceleration can be adjusted so that the head injury index can be within the target injury index range, and therefore collision of the head of the pedestrian can be effectively protected by controlling the head injury index.

The invention relates to the development of a fall detection system for the elderly population or adults or children. Our system relies exclusively on surveillance cameras for fluid and discreet daily monitoring. Our approach combines the human silhouette and head speed for fall detection. The head is detected from the mask and key points of the silhouette extracted from pixels using a pre-trained neural network. Head speed is calculated by detecting the centroid of the head and by measuring the distance travelled by that point during activity. This advanced method ensures accurate and efficient classification of falls and can be used to detect head injuries caused by high-speed ground impact.

The present application discloses a method for determining the influence of head kinematic boundary conditions on head injury, the method comprising the following steps: obtaining accident information of multiple traffic accident cases that meet preset conditions, wherein the multiple traffic accident cases all involve collisions between vulnerable road users (VRUs) and vehicles; simulating the traffic accident process based on the accident information of the traffic accident cases, outputting head injury indicators and extracting head kinematic boundary conditions in the collision; performing correlation analysis on the extracted head kinematic boundary conditions and the output head injury indicators from the simulation of the multiple traffic accident cases using a univariate linear regression analysis method, calculating the correlation between each head kinematic boundary condition and each head injury indicator, and determining the degree of influence of each head kinematic boundary condition on head injury based on the calculation results. The present application can improve the accuracy and diversity of the correlation between the determined head kinematic boundary conditions and head injury indicators.

The application discloses an upper longitudinal beam structure assembly, a vehicle body and a vehicle, and belongs to the technical field of automobile body-in-white. The upper part of the upper longitudinal beam structure assembly is designed in a shape following the shock tower, and the Z-direction height of the compression section is reduced. All components such as the support, the gas spring, the buffer block and the hinge are connected on the side surface, and the collision deformation space between the engine cover and the shotgun is increased. The front fender support is welded to the lower diagonal support beam structure, the Z-direction height is reduced, and the cantilever structure is adopted, so that the overturning deformation occurs during the collision, and the head injury is reduced. The middle fender support adopts a U-shaped structure, effectively avoids the engine cover side wall structure, and can be crushed in time during the collision, so that the engine cover is fully deformed. The hinge and the mounting support arrangement position are optimized, the avoidance structure is increased, and the head injury in the region is weakened. The problem that the height of the engine cover of a new energy vehicle and the pedestrian protection performance of the vehicle cannot be considered together is solved.

The invention relates to the technical field of vehicles, and discloses a passenger head injury risk prediction method based on collision key parameters. Comprising the steps that collision test data of the head of a passenger are acquired and preprocessed, and input data of a head injury prediction model are obtained; building a head injury prediction model, and predicting a head injury risk based on the input data; building a fitting function of the head injury prediction model, and determining the fitting degree of the head injury prediction model based on the head injury risk; constructing an iterative equation of a coefficient matrix of the head injury prediction model, and determining an initial coefficient matrix of the iterative equation; carrying out iterative optimization on the initial coefficient matrix by adopting improved crossover operation and / or mutation operation to obtain an optimized coefficient matrix; iterating the iterative equation based on the optimized coefficient matrix to obtain a head injury prediction model after iteration; and predicting the head injury risk based on the iterated head injury prediction model. The method can accurately predict the head injury risk of the passenger.

The utility model discloses a light breathable pneumatic sports helmet, which relates to the technical field of pneumatic sports helmets and comprises a helmet body and a Kevlar skeleton completely wrapped in the helmet body, the outer wall of the helmet body is covered with a helmet shell made of a layer of PC (polycarbonate) material, the Kevlar skeleton is arranged in the middle of the forehead of the helmet body, and the Kevlar skeleton is arranged in the middle of the helmet body. At least one main wind tunnel is formed in the helmet body and located in a gap of the Kevlar framework, a plurality of side wind tunnels are symmetrically formed in the two sides of the helmet body, the Kevlar framework located on the forehead portion and the helmet body are integrally formed, and when the helmet body is impacted, local impact force can be dispersed to the periphery, so that the impact force of the helmet body is reduced, and the impact force of the helmet body is reduced. According to the helmet made of the EPS material, head injury is avoided or relieved, the defect that the structural strength is reduced due to the fact that a large number of ventilation structures are arranged on the front portion and the rear portion of the helmet body is overcome, the Kevlar framework made of the Kevlar material is embedded in the helmet made of the EPS material, the strength of the helmet is guaranteed, and meanwhile the wind tunnel area can be increased to the maximum extent.

The utility model relates to the technical field of helmets, in particular to a helmet with centering positioning adjustment and impact force unloading functions. The middle of the lining soft rubber frame is fixed to the helmet body, and the two ends of the lining soft rubber frame are movably connected to the helmet body through a middle hanging frame; the adjustor is arranged in the helmet body, the two ends of the adjustor are connected to the lining soft rubber frame through silk threads, and the silk threads surround the lining soft rubber frame; according to the application, the contraction degree of the lining soft rubber frame is adjusted through the swinging stretching of the two ends of the lining soft rubber frame and the pulling of the regulator to the silk threads, and the multi-point connection mode of the lining piece is matched, so that the flexibility of the lining soft rubber frame is improved, and the service life of the lining piece is prolonged. According to the helmet, the head can be kept in the geometric center of the helmet body, and through front-back and left-right movement of the lining piece, when a human body wears the helmet and the helmet is subjected to external impact, the movement displacement of the helmet can achieve the effects of unloading force and relieving head injury.

The utility model provides an aviation safety seat, belongs to the technical field of seats, and solves the technical problem that an existing aviation seat cannot accurately and flexibly restrain the head and the upper body of a user. An aviation safety seat comprises a seat body, a seat back rotationally connected to the upper portion of the seat body, armrests rotationally connected to the two sides of the seat back and a headrest fixedly installed on the upper portion of the seat back, and two limiting blocks are oppositely arranged on the upper portion of the seat back in a telescopic mode through limiting assemblies and located on the two sides of the headrest. According to the automobile seat headrest, the limiting blocks are arranged on the two sides of the headrest in the telescopic mode, the limiting blocks can conduct synchronous telescopic limiting on the two sides of the head of a user, and the head of the user is prevented from being hurt and collided; the user can be fixedly connected with the lock catch through the second safety belt, three-point type safety binding of the seat is achieved, and the seat is reasonably connected with an existing two-point type safety belt.

The present application discloses a windshield, a manufacturing method thereof, and a vehicle. The windshield is mounted on a vehicle including an instrument panel, and includes an outer glass panel, an intermediate layer, and an inner glass panel. The windshield has a first weakened zone, and the first weakened zone is tested using an adult head-shaped impactor. The adult head-shaped impactor impacts the first weakened zone, causing the first weakened zone to fracture. After the first weakened zone fractures, the adult head-shaped impactor impacts the instrument panel. The adult head-shaped impactor exhibits a first head injury index (HIC1) within 0 to 5 milliseconds after impacting the first weakened zone, where 100 ≤ HIC1 ≤ 650. The adult head-shaped impactor exhibits a second head injury index (HIC2) within 5 to 15 milliseconds after impacting the first weakened zone, where HIC2 < 1000. This application can provide both pedestrian collision protection and vehicle occupant safety protection, and thus offers improved overall safety performance.

This utility model discloses a compressible engine hood buffer block and a car with pedestrian protection in mind, relating to the field of automotive safety design. It includes: a cylindrical housing comprising an upper housing and a lower housing connected to each other, with a connecting hole at the top of the upper housing; a spring, one end of which is fixed inside the lower housing and positioned along the axial direction of the housing; a buffer block body, the middle of which is disposed through the connecting hole, with one end of the buffer block body outside the housing for connection to the engine hood, and the other end of the buffer block body inside the housing engaging with the inner wall of the upper housing; and a support block disposed inside the housing, with both ends connected to the spring and the buffer block body, respectively. When the engine hood with the buffer block installed is normally closed, after a pedestrian collision, the buffer block body is compressed and retracted into the housing after being subjected to the impact force, causing the engine hood to shift downwards a certain distance, creating a larger energy absorption space for head impacts and reducing head injury.

The invention discloses a method, device and equipment for predicting the head injury level of a passenger in collision and a storage medium, and relates to the technical field of injury assessment, and the method comprises the steps: firstly obtaining source domain data and target domain data; then preprocessing the two types of data; inputting the preprocessed source domain data into a CNN-LSTM hybrid model for pre-training to obtain a pre-training model; then freezing parameters of a CNN part in the pre-training model, and performing fine adjustment on an LSTM part and a full connection layer by using preprocessed target domain data to obtain a transfer learning model of a target attitude; finally, selecting a model according to a riding angle; if the riding angle is greater than an angle threshold value, outputting a damage level under a target attitude by using a transfer learning model; and if the angle is smaller than or equal to the angle threshold, outputting the damage level under the standard attitude by using the pre-training model. According to the method, the accuracy of passenger injury prediction in the collision process can be effectively improved.

The application relates to the technical field of collision test, in particular to a passenger injury prediction method and device suitable for large-angle seats. The method comprises the following steps: in a whole vehicle collision test, the relative spatial position change curve of a passenger and a seat belt fixing point is obtained through a machine vision technology; the relative spatial position change curve is input into a passenger injury prediction model to obtain a passenger head acceleration time sequence curve, a neck axial tensile force time sequence curve and a bending moment time sequence curve; and passenger head injury indexes and neck injury indexes are calculated according to the passenger head acceleration time sequence curve, the neck axial tensile force time sequence curve and the bending moment time sequence curve. The application realizes passenger injury prediction in a collision process at a low calculation cost, and forms a passenger injury prediction model with low cost, high efficiency and high precision.

The invention discloses a pressure-controllable hemostasis ice compress device, and belongs to the technical field of pressure-controllable hemostasis devices. Comprising a hemostasis and pressure control protective head-mounted piece worn on the head of a person for pressure control hemostasis, cheek pressure control pastes for ice compress, pressure control hemostasis and ice compress on the face and the cheek, a lower jaw supporting and pressure control bearing cover for supporting and pressure control of the lower jaw of a patient and an ice compress pocket for storing an ice bag. The hemostasis and pressure control protective head-mounted part comprises a head-top wearing cap, a head-back and two-side wearing sleeve, a head-top wearing pressure control device and a head-back and two-side pressure control device, and the head-top wearing cap and the head-back and two-side wearing sleeve are combined into a whole head wearing cap. The device can be worn on the head of a patient in time, accurate pressure-controlled hemostasis and ice compress operation are conducted on the trauma part of the head of the patient through wearing, and therefore head bleeding is effectively stopped, serious complications such as anemia and shock of the patient caused by excessive blood loss are prevented, and the vital signs of the patient are kept stable; the brain injury risk caused by bleeding is reduced.

This invention discloses an adaptive head protection method considering pedestrian biometrics in emergency situations. Based on a finite element model of the pedestrian's emergency posture and the current vehicle speed, a head position prediction model is used to obtain different vehicle states at the time of collision. The collision position of the pedestrian's head under different vehicle states is determined. Based on the predicted intracranial pressure, the optimal vehicle state is selected, corresponding to the lowest intracranial pressure. The front bumper beam is adjusted according to the position of the front bumper beam corresponding to the optimal vehicle state. The brake pedal is controlled according to the vehicle speed corresponding to the optimal vehicle state. The steering wheel is controlled according to the vehicle angle corresponding to the optimal vehicle state to obtain the corresponding vehicle angle. This invention can minimize damage when a collision is unavoidable, thereby effectively protecting the pedestrian's head. It can automatically obtain the corresponding head injury situation based on different pedestrian vital signs and emergency postures, and adaptively adjust the vehicle state.

The present disclosure relates to a pedestrian head injury evaluation method of a vehicle and related equipment. The method comprises: obtaining a simulation model and impact information of a vehicle to be evaluated; inputting the simulation model and the impact information into a pre-trained evaluation model to obtain a pedestrian head injury of the vehicle to be evaluated output by the evaluation model, wherein the evaluation model is used to extract metal component features and non-metal component features of the vehicle to be evaluated from the simulation model and the impact information, and obtain the pedestrian head injury according to the metal component features and the non-metal component features. The method provided by the present disclosure extracts the features of metal components and non-metal components respectively, differentiates the collision features according to the material categories, represents the material mechanics properties of the vehicle in collision which is closer to the actual situation, and then obtains more accurate pedestrian head injury results, thereby improving the efficiency of vehicle safety testing.