P11015: Mobile Landmark Identification
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Establish Target Specifications

The following table includes engineering specifications of the design. These specifications are derived from the different customer needs.

List of Engineering Specifications: Hand-held Device
Engineering Spec. Derives from Customer Needs Relative Importance (-,1,3,9) Description Measure of Performance Engineering Units Marginal value Ideal Value Validation Method
small size V1 9 Relatively small device Size of device LxWxD (in^3 or m^3) 6"x2.5"x2" 5"x2"x1" Observation and measurement
light weight V1 9 The device is light and portable weight of device lbs or kgs 1.5 lbs 0.5 lbs Observation and measurement
hands-free V2 3 The device can be used without constant need of tactile interaction with the user Boolean yes/no no yes Observation
Device life V3, V4 3 The device is durable and rigid in normal, everyday circumstances Life cycle testing years 1 year 2 years Fatigue, life cycle and stress testing
Operating range V5 9 The range of operation and detection of the device Effective range testing ft 100 ft 330 ft Experimental
Battery life V3 3 Long battery life Battery life testing hours 2 hours of use, 10 hours standby 5 hours of use, 24 hours standby Observation and measurement
Stress requirement V4 3 The device passes a physical stress test Passes mechanical stress testing yes/no no yes Fatigue testing
Cost V6 3 The device is low cost N/A $ $200 $100 Preliminary research from bill of materials and processing quotes
NOTE: The specs in the device section were based on the assumption that there will be a device that is used in order to implement the final product on, but that device is the tactile interface device team's, P11017, deliverable.
List of Engineering Specifications: Interface Methods
Engineering Spec. Derives from Customer Needs Relative Importance (-,1,3,9) Description Measure of Performance Engineering Units Marginal value Ideal Value Validation Method
User friendly V7 9 The device is easy to use time for a new user to get used to the interface minutes 60 Minutes 20 Minutes Observation
audible input interface V8 1 The device can be voice activated Boolean yes/no No Yes design implementation
Button input interface V9 9 The device has a button interface Boolean yes/no No Yes design implementation
Audible output interface V10 9 The device has and audible output interface Boolean yes/no No Yes design implementation
Tactile output interface V11 1 The device has a tactile output interface Boolean yes/no No Yes design implementation
Fast response speed V12 3 The device has low time delay Experimental time delay testing seconds 30 seconds (full process) 15 seconds (full process) Observation and measurement
List of Engineering Specifications: Information and Database
Engineering Spec. Derives from Customer Needs Relative Importance (-,1,3,9) Description Measure of Performance Engineering Units Marginal value Ideal Value Validation Method
Multi-platform V13 9 System works on multiple platforms Boolean yes/no No Yes Design implementation
Easy to synchronize V14 3 The user can update the firmware using a computer Boolean yes/no No Yes design implementation
Accurate information V15 9 The information downloaded by the device is accurate Collect data and perform statistical analysis probability of accuracy 50% 85% Observation
real-time arrival notification V16 9 The device receives information in real-time Calculate average time delay seconds 2 seconds 0.5 seconds observation
List of Engineering Specifications: Additional features and options
Engineering Spec. Derives from Customer Needs Relative Importance (-,1,3,9) Description Measure of Performance Engineering Units Marginal value Ideal Value Validation Method
Aesthetically pleasing V17 1 The device is aesthetically pleasing Boolean yes/no No Yes Observation and measurement
List of Engineering Specifications: Device on the Bus
Engineering Spec. Derives from Customer Needs Relative Importance (-,1,3,9) Description Measure of Performance Engineering Units Marginal value Ideal Value Validation Method
small size V20 9 The device should take up a small space inside or on the bus Dimensions and tolerances LxWxD (in^3 or m^3) 12"x12"x12" 6"x6"x6" Observation and measurement
light weight V20 9 The device is relatively light Weigh the device lbs or kgs 10 lbs 5 lbs Observation and measurement
Low cost (manufacturing and selling) V18 9 The device is inexpensive to manufacture and can be sold at a reasonable price Bill of materials and processing costs $ Collection of information for materials and processes
Low power requirement V19 3 The device operates using the bus as a power source Boolean/system power requirement calculations Watt design and implementation
Device life V22 9 The device is durable and rigid in normal, everyday circumstances Estimate and statistical analysis years 1 year 3 years Fatigue testing
Easy to install V20 9 The device is easy to install without the need for special tools Measure the amount of time and number of steps required hours/number of steps for installation
Easy to replace V20 9 The device is easy to replace within its own containment without the need for special tools Boolean Yes/No No Yes Design implementation
Weatherproof V22 9 The device can withstand weather conditions in Rochester, NY Boolean Yes/No No Yes Design implementation
Low maintenance V21 9 The device is low maintenance and can be easily replaced or repaired. It needs little or no cleaning from the user Boolean Yes/No No Yes Design implementation
Safe V24 3 The device is encased in a non-conductive case that withstands the conditions of the bus without posing a risk to the passengers Boolean Yes/No No Yes Design implementation
Bus driver notification V23 9 The bus driver is notified in case the bus is selected by VIP Boolean yes/no No Yes Design implementation

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