7results about How to "Safe by design" patented technology

This invention discloses a bridge pot bearing and control system based on system conversion. A first bearing body and a second bearing body are stacked from top to bottom. The first bearing body has a first mounting plate, and an adjustment component is installed below the first mounting plate. The second bearing body has a second mounting plate, and a test component is installed on the second mounting plate. The test component connects with the adjustment component. While performing pressure testing, the test component, in conjunction with the adjustment component, enables the conversion between three states: fixed pot bearing, unidirectional movable pot bearing, and bidirectional movable pot bearing. This invention monitors the stress on the bearing in real time, calculates the bridge shear force based on the reaction force, and derives the bridge shear force amplification factor under dynamic loads, thus improving bridge design methods and making bridge design safer and more reliable. It can realize the functions of a fixed bearing, a unidirectional movable bearing, or a bidirectional movable bearing, and achieve mutual conversion between bearing types.

The invention belongs to the technical field of biology, and relates to a construction method and application of a mouse exogenous gene expression model based on an adenovirus vector. The exogenous gene is delivered through the adenovirus vector, the exogenous gene is subjected to site-specific integration to the specific site of the mouse target cell by using the double recombinase, the efficiency is high, the integration site and copy number are controllable, the safety is good, various function acquired variations can be efficiently modeled, and the method can be applied to establishment of a tumor model and research of precision medical treatment.

This application provides an automotive seat and a vehicle having the same. The automotive seat includes: a headrest assembly; and a monitoring component detachably connected to the headrest assembly. The monitoring component has a working position that engages with the headrest assembly and a detachable position that separates it from the headrest assembly. The monitoring component is used to detect and generate health status data of a target object. By applying this technical solution, the detachable monitoring component and headrest assembly ensure both comfort and monitoring accuracy within the vehicle environment. It also allows the user to carry and use the monitoring component separately after leaving the vehicle. The monitoring component can store monitoring data and synchronize with the user's smart devices in various environments, achieving continuous and comprehensive health data monitoring. This solves the problem of traditional in-vehicle health monitoring devices not being detachable from automotive seat headrests in the prior art.

The application discloses a data-driven building multi-room fire horizontal spread whole process prediction method, comprising the following steps: determining a plane structure physical model of a fire spread scene, and dividing a spread area; constructing a sample set, constructing a C-I-WOA-BP neural network based on a chaotic adaptive whale optimization algorithm, optimizing network parameter configuration, and predicting the ignition time of the room in the area closest to the fire source room; adding the ignition time of the room in the already ignited area into the sample set as the input of the neural network, and predicting the ignition time of the room in the next area; and obtaining a spread path according to the time sequence of the spread of the fire from the room where the fire breaks out to other rooms. The application improves the accuracy and efficiency of fire prediction, meets the demand for real building fire horizontal spread scenes in actual structure fire resistance research and fire rescue, and is helpful for designing a safer and more effective fire emergency response scheme.

This invention pertains to an operating platform, specifically an operating platform for the interior of a 90° elbow pipe. The platform comprises a planar support section, a front support section, an adjusting and fixing square tube, and a rear support section. The front support section is located at the front end of the adjusting and fixing square tube and points vertically upwards. The planar support section is located at the free end of the front support section, and the rear support section is located at the rear end of the adjusting and fixing square tube. The significant advantages of this invention are: convenient assembly and disassembly, ease of operation, and reduced impact of confined spaces on operator work; high stability and protection, preventing damage to the pipe's inner wall; compatibility with various large-diameter 90° elbow pipes, broad application range; and facilitates pipe measurement, welding, cleaning, and other tasks, improving work efficiency and quality.

The invention relates to a road width-limited area safety passage control system, which comprises a signal capturing mechanism arranged at a road width-limited area and used for executing field image signal capturing operation on an automobile which is about to pass to the road width-limited area; the signal detection mechanism is used for intelligently identifying an entity width value of a vehicle which is about to enter the road width limiting area; and the state identification mechanism is used for sending a width limiting reminding command when the received entity width value is greater than the maximum passing width corresponding to the road width limiting area. The safe traffic control system for the road width-limited area is compact in design, safe and reliable. On the basis of customized visual data intelligent analysis, when the entity width value of the vehicle which is about to enter the width-limited road surface area is greater than the maximum passing width corresponding to the road width-limited area through intelligent analysis, the width-limited reminding command is sent out, so that the number of traffic road surface accidents is reduced.

The application discloses a bolt axial force attenuation prediction method considering bolt creep, and is characterized by comprising the following steps: 1) obtaining a creep curve of a standard bolt used for connection under a use temperature; 2) determining a function relation between the stiffness of a bolt model in bolt connection and time according to the creep curve; and 3) calculating residual axial force at a selected time according to the function relation between the stiffness of the bolt model and time and a function relation between residual axial force and time, so as to realize the prediction of bolt axial force attenuation. Through the establishment of an equivalent model, the application studies the relation between the change rule of bolt internal stress and strain and external load, thereby summarizing the change rule of pre-tightening force of the bolt in a tightened state due to the creep effect under a medium-high temperature environment, establishing a mathematical function model of bolt pre-tightening force change with time, and predicting the bolt residual axial force and loosening life.