Group I

Group I

Group I Walky-Lighty Project Synopsis Our prototype has been brained to solve the problem of pedestrian safety on pedestrian walkways, and the electrical consumption of pedestrian walkways. We have come up with a plan to create a walkway tile that would light up upon pressure. When pressure is applied to one tile the surrounding few tiles are programmed in such a way that they light up too for a clearer view of the surroundings for the pedestrian. The entire prototype consists of a set of pressure-activated lighted floor tiles and a strip of opaque optic fiber wire which would illuminate the walkways track so that pedestrians to provide guidance for the twists and turns of the walkways. These tiles are designed to replace streetlamps as streetlamps are constantly turned on regardless of the number of pedestrians using the pedestrian walkways. The tile is made of four integral components: a top piece, a middle piece, a bottom piece, and a frame.

The top piece is made from a frosted acrylic material because it diffuses the bright illumination from the LED strip and prevents it from blinding the pedestrians through direct light rays. The middle piece is made from an opaque acrylic with built in LED strip mounts which are angled 45 ͦ upwards to direct the light towards the frosted top piece. This is the most efficient illumination angle. The LED strips are connected in parallel circuit configuration so that if one LED strip malfunctions the remaining 3 can still function. The bottom tile has the housing and wiring routes for the spring-loaded power connector, data cable connection and force sensor. An analogue force sensor is used because it can be calibrated easily and the activation point can be fine-tuned to each specific force required. The spring-loaded power connector is used because it allows the floor tile to have constant power connection although the floor tile might flex under the load, this is because the spring-loaded connectors will move according to the flexure of the floor tile and will stay static. To hold all the top three pieces into place, a simple frame with the wiring system is used as a housing. To hold all the top three pieces into place, a simple frame with the wiring system is used as a housing. There are tooth and groove that will be the connecting points with allows all the tile units to combine and communicate with one another because the wiring system will have extrusions at these teeth and grooves point for secure and accurate connections. The secure connections via tooth and groove design in these frames can prevent short circuit or disconnection between the wiring systems and most importantly, making it easier for the tiles to be aligned in a straight orientation.