3 results about "Field assessment" patented technology

Methods and apparatus for supporting field assessments of accessibility compliance are disclosed. The Accessibility Reference Stick (ARS) is a portable tool designed to verify compliance with accessibility standards in real-world conditions. The ARS features adjustable pointers set to predefined measurements, modular components for adaptability, digital displays for dynamic reference specifications, and wireless communication capabilities for integration with smart devices. The ARS facilitates photographic documentation of compliance, streamlining inspections and reporting. The ARS design addresses challenges in measuring and documenting accessibility compliance, providing a versatile and efficient solution for field inspectors, architects, and construction professionals.

This invention relates to the field of temperature sensor testing, specifically the application of testing and measurement technology in the control of microclimates in aquaculture. The method involves deploying a sealed reference cavity with a built-in standard thermometer in a forest-based aquaculture area. Each temperature sensor node is periodically inserted into the reference cavity to periodically read the current temperature value and compare it with the standard thermometer to obtain the absolute drift. A two-dimensional drift matrix is ​​constructed by combining this data with historical humidity data of the location. During non-calibration periods, the original temperature values ​​are corrected using the two-dimensional drift matrix. The corrected temperature values ​​are then used in a Kriging space interpolation algorithm to generate a three-dimensional temperature field distribution map. Based on the coordinates of local high-temperature areas in the distribution map, the corresponding spray cooling solenoid valves are activated. This invention offsets the long-term drift caused by the high-humidity and corrosive environment of the forest undergrowth, corrects the spatial deviation of the original temperature data, improves the accuracy of the three-dimensional temperature field reconstruction, and avoids control misalignment caused by temperature field assessment distortion.

The invention discloses a method, a device, a medium and a program for forecasting noise of a water surface ship propeller based on excitation source reconstruction. The method comprises the following steps: firstly, determining vibration sensing point location distribution and sound field assessment point positions; determining the arrangement and size of a reconstruction source; obtaining vibration and sound transfer functions from the reconstruction source to the sound field assessment point, and numbering the functions in sequence; according to a transfer function invariance principle, establishing a propeller noise forecasting method based on a reconstructed excitation source; rapid prediction of the structural noise of the propeller shaft ship under multiple reconstruction sources is realized; the direct sound production coherence of the propeller is judged, if the direct sound production coherence is strong coherence, correction continues to be carried out to obtain vibration sound transfer functions from the reconstruction source to the sound field assessment point, and numbering is carried out in sequence; if the signal is weak coherence, a direct sound production noise source model is established based on a sound-sound transfer function, radiation noise under direct sound production of the propeller is obtained through calculation, and prediction of the propeller noise considering direct sound production is achieved based on the vector superposition principle. The method is suitable for ship thruster shafting vibration monitoring and thruster noise rapid forecasting and evaluation.