Embodiments are provided for to a system, computer program product, and a method to support surveying a physical environment. Two or more secondary units are physically configured to receive a physical actuation. In response to the actuation, the secondary unit(s) are configured to emit an audible cue and to communicate an address of the actuated unit. Tools are provided to track the actuation and associated addresses, and in an embodiment lapsed time.

A detectable warning system comprising a mat substrate comprising a first acrylic material and a texture layer comprising a plurality of texture elements formed from a second acrylic material disposed on a top surface of the mat substrate. The mat substrate comprises a plurality of raised portions. The first acrylic material comprises an acrylic cement and an acrylic admix. The second acrylic material comprises the acrylic cement and the acrylic admix. The second acrylic material defines a plurality of texture elements on the mat substrate.

An embedment tile for producing a tactilely detectable surface in a pedestrian walkway with an improved cross beam anchor.

Proposed are a braille block with a QR code displayed for guiding the visually impaired and an information guidance system using the same, which more accurately provides the next movement information to the visually impaired on the basis of the movement route of the visually impaired and the entry direction into the current braille block analyzed through recognition of the QR code contained in the braille block, especially which analyzes and provides the information necessary to make corrections to the location of the braille block or corrections related to the QR code information contained in the braille block by analyzing whether the visually impaired actually move to or enter the guided braille block in the correct direction, and additionally which selects and provides customized information suitable for the corresponding visually impaired person among information contained in the QR code or content provided through the center server.

A patterned warning mat according to the present disclosure having a base and a plurality of domes and patterns formed on the base. The warning mat is obtained by a process comprising the steps of providing an open-face mold having a plurality of textures and a plurality of dome indentations, preparing a liquid mixture capable of solidifying, pouring the mixture over the open-face mold, and allowing the mixture to solidify and form the warning mat. The domes and patterns on the warning mat respectively correspond to the dome indentations and textures of the open-face mold.

A disaster safety smart shelter is a shelter installed outdoors and includes: a shelter housing including a plurality of side wall parts, a ceiling part shielding upper portions of the plurality of side wall parts, a waiting space formed therein and an opening and shutting door which is formed through at least a portion of the side wall parts to allow access to the waiting space; a ventilation module including an air discharge port provided through the ceiling part to discharge air inside the waiting space to the outside and an air suction port for supplying air from the outside to the waiting space; an information guidance terminal module provided to the exposed to the inside of the waiting space and displaying a plurality of pieces of information to a user; and a power supply module provided on the ceiling part to supply power to each part.

A patterned warning mat according to the present disclosure having a base and a plurality of domes and patterns formed on the base. The warning mat is obtained by a process comprising the steps of providing an open-face mold having a plurality of textures and a plurality of dome indentations, preparing a liquid mixture capable of solidifying, pouring the mixture over the open-face mold, and allowing the mixture to solidify and form the warning mat. The domes and patterns on the warning mat respectively correspond to the dome indentations and textures of the open-face mold.

Provided are a method and device for recognizing gait information using a plurality of magnetic sensors. The method for recognizing gait information generates a magnetic sensing signal from a magnetic paint painted on the ground, generates a frequency-converted signal using the magnetic sensing signal, and generates gait information using the frequency-converted signal.