РҐРѕСРµССЃСЏ СЃРєРСРССЊ РеспРРСРЅРѕ Mp3
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РҐРѕСРµССЃСЏ СЃРєРСРССЊ РеспРРСРЅРѕ Mp3
Hi Garrett. After discussing the placement of the haptic feedback motors with one of our stakeholders, it was clear that the lower back was the most intuitive place for the vibrational feedback to go. This is because both the hands and the arms lack a viable location for feedback when an obstacle is directly behind a person. Along with this, we did not want to vibrate both at once, as we thought that this might be overwhelming to the cyclist, or even cause them to believe they are being approached from both directions by obstacles. With the lower back, there is ample room for multiple spaced-out vibrational motors allowing for pinpoint accuracy when alerting the cyclist of where exactly the obstacle is located behind them.
Hi Adam. Tooling is a variable cost, based on the amount of units produced. This cost was calculated using an online die casting calculator ( -casting/units=1) for the LiDAR housing unit, which would be constructed using aluminum die casting. The minimum part quantity allowed on this calculator was 10,000 units, so the costs shown in the table in the video reflect this quantity. Manufacturing costs per part would decrease as quantity increases.
As far as iterative testing is concerned, this cost would dramatically decrease as production quantity increases because as our product is further developed and larger quantities are manufactured, much less testing would be required.
The maximum range of the LiDAR sensor we plan on using in our final design is 40 meters. However, as this distance increases, the accuracy of the sensor tends to decrease as unknown variables (including object interference) are introduced. We felt that 6.5 meters provides a good balance between giving users an advanced alert of incoming objects and giving them unnecessary input from objects too far away to be acknowledged. We also took inspiration from projects similar to ours, such as this design that used a 7 meter range based on sunlight conditions and standard US highway widths.
The system is currently powered by a 5 volt rechargeable battery pack. Ideally, however, there would be two battery packs. One (smaller) battery pack would be located within the vest to power the haptic motors, and another battery pack would be fastened to the bike and would power the LiDAR sensor. These battery packs are rechargeable for when they inevitably run out of power.
In the US there are 47.5 million cyclists. According to Statista, in The US alone has a $6.2 billion cycling market. Globally, there are over two billion bikes, and it is estimated that by 2050 there will be over five billion bikes across the world.
It has been estimated that 1.2 million visits to hospital clinics have been attributed to bicycling per year ( -statistics-bicycle-injuries/). Of the 1.2 million injuries, according to the Nation Highway Traffic Safety Administration, around 30% percent of these injuries involved a collision with a vehicle ( -accidents-in-the-united-states/). So, around 360,000 bicycle injuries have been inflicted by motor vehicles each year. When it comes to fatalities, in 2019, 843 bicyclists in the US have died because they had been struck by a vehicle ( -statistics/detail/bicyclists). As previously mentioned, these risks are heightened for cyclists with hearing impairments. Statistics like these are what fueled us to pursue this design, with the goal of enhancing cycling safety for both hearing impaired cyclists and all other cyclists alike.
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The other day, while I was at work, my cousin stole my iPadand tested to see if it can survive a 25 foot drop, just so she can be a youtube sensation. Myapple ipad is now destroyed and she has 83 views. I know this is completely off topic
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