Final Presentation

Slide1: 

Senior Design II Spring 2001 Group 19

Guest Sensing in Guest Vehicles: 

Guest Sensing in Guest Vehicles Dave Huber - Project Leader Christina Fleming - Administrative Leader Zaw Tun - Technical Leader Kevin Kerkvilet - Technical Leader Sponsored by Walt Disney World Ride and Show Engineering Group 19

Original Specs: 

Original Specs A guest sensing system that can be used in guest vehicles in order to monitor guests on The Haunted Mansion ride at Walt Disney World. A system that can replace or enhance the current monitoring system. Designed with intentions to utilize on other attractions in the future.

Current System: 

Current System Lap bar used to keep guests in their seats Pressure mats strategically placed around the ride Connected to a main controller Output to ride personnel Issues No monitoring until guest leaves vehicle Leaves gaps in coverage Guests must reach mat before action occurs All audio loaded from outside the ride vehicles

Onboard System Focus: 

Onboard System Focus Leaving the vehicle is already covered in an effective manner with pressure mats Entire system contained onboard the ride Monitoring the internal actions of guests will add new features to overall system.

Design Goals: 

Design Goals Replace and/or enhance older system that is currently in place Prevent situations before they develop Protect as many situations as possible Create a long lasting and reliable system Built in redundancy Build a cost effective solution Easy installation and low maintenance

Main Block Diagrams: 

Main Block Diagrams Basic Block Diagram System Flowchart Basic System Pieces

System Storyboard: 

System Storyboard

Main Scenarios: 

Main Scenarios Standing up inside of the ride vehicle Leaning outside of ride vehicle Leaving the ride vehicle

Christina Fleming: 

Christina Fleming SEAT TECHNOLOGY

Seat Sensors: 

Seat Sensors Placement of sensors Easily incorporated into current system Allow warning system Protected vinyl casing

Seat Sensor Comparison: 

Seat Sensor Comparison

Bend Sensors: 

Bend Sensors What they are: Ultra-thin plastic film that changes electrical conductivity as the sensor is bent Light weight (about 90% smaller than average sensor) Longer life span No mechanical components How they work: Measure up to 200 data points per inch to detect changes in the occupant’s position Conductive ink within film will generate weight pattern signals when bent Acts as it’s own spring to return to original position Operate without manual activation and can be activated up to 5 million times How we will use them: Incorporated underneath seat structure between foam and vinyl 12 sensors per seat making up 6 zones (minimum 2 zones per person) Measure overall positioning on entire seat Compare initial data to data taken throughout travel of ride This comparison will take place in PLC were initial data will be stored

Seat Layers: 

Seat Layers

Bend Sensor Layout: 

Bend Sensor Layout

Bend Sensor Specs: 

Bend Sensor Specs Life Cycle >1 million cycles Temperature Range -35 deg C to +85 deg C Input Voltage 12volts Base Resistor 100ohm - 500kohm Resistance 6kohm - 11kohm Weight (3”) .11 grams Output Voltage Varies

Zaw Tun: 

Zaw Tun INPUT SENSORS & AUDIO SYSTEM

On/Off Magnetic Switch: 

On/Off Magnetic Switch Why we need On/Off switch Turns onboard system on after leaving loading area Turns onboard system off after entering unloading area Magnetic 506WG OPEN (GRI Corp) Very Small Easy Installation Inexpensive and reliable system

On/Off Switch Schematic: 

On/Off Switch Schematic

On/Off Switch Placement: 

On/Off Switch Placement Lap bar is closed, magnetic on/off switch is in the ON position Lap bar is up, magnetic on/off switch is in the OFF position

Sensor Comparison Chart: 

Sensor Comparison Chart

Lean Sensor: 

Lean Sensor QS12VP6R (Receiver) (Banner Engineering Corp) QS126E (Emitter) 10V-30Vdc @ less than 25mA Output response 600 microseconds for excellent sensing Dark Mode Output Configuration Protect against false pulse (e.g., power-up & continuous overload) Operating condition Temp –4° to +131° F Supply Protection Circuitry Protected against reverse polarity & transient voltage

Reasons for Choosing Specific Model: 

Reasons for Choosing Specific Model Easily fit almost any mounting Small in size Opposed Mode(Emitter & Receiver) Less interference (Lower false alarm rate) Can adjust sensitivity with single push button Easy Connection Comes in various length of wire with pigtail Quick Connector

Lean Sensor Placement: 

Lean Sensor Placement

ISD1000A Specification: 

ISD1000A Specification Zero-power message storage Eliminate battery backup circuit Used Two connection for power(+5V) and ground to minimize the noises. Dc Operating Conditions VccD = VccA = 5V Operating Temperature = 77°F (25°C) VssD + VssA = 0V Operating Supply current (VccA + VccD ) PD=0…………………………………………….25 mA Standby Supply Current (VccA + VccD ) PD = 1, P/ R = 1………………………………….10uf Speaker Output Load Impedance……………16 Ohms

ISD1000A Record/Play Chip: 

ISD1000A Record/Play Chip Easy-to-use single-chip voice record/playback solution High-quality, natural voice/audio reproduction Manual switch or Microcontroller compatible Playback Automatic power-down Full addressable to handle multiple messages 100-year message retention 100,000 record cycles On-chip clock source Programmer Support for Play-only circuit

Play/Record Circuit: 

Play/Record Circuit

Passive Component Function: 

Passive Component Function

Play Only Circuit: 

Play Only Circuit

Dave Huber: 

Dave Huber Programmable Logic Controller

Programmable Logic Controller (PLC): 

Programmable Logic Controller (PLC) Brain of system Controls reactions of system Allows timing delays for improving performance by adding built-in redundancy, and allowing for many special features Provides an easily modified software program for debugging and implementing desired features

PLC Specs: 

PLC Specs Direct Logic 105 Allows 10 inputs Allows 8 outputs Programmed with ladder logic on personal computer 12 Volt DC power supply

Slide33: 

PLC Power Input Lines Output Lines On/Off Sensor Bend Sensors (# 3) Bend Sensors (# 2) Bend Sensors (# 1) Lean Sensors Warning Message LED #1 Bend Sensors (# 6) Bend Sensors (# 5) Bend Sensors (# 4) LED #2 LED #3 PLC Layout Error LED

PLC Lean Sensor Flowchart: 

PLC Lean Sensor Flowchart

PLC Seat Sensor Flowchart: 

PLC Seat Sensor Flowchart YES NO YES YES If On/Off Switch is ON Read, Calculate and Compare Current Total From Seat Sensor If Current Total is Less Than Initial Total Read, Calculate and Store Initial Total of Guests From Seat Sensors Delay Before Next Check If Current Total is Less Than Initial Total Read Calculate and Compare Current Total From Seat Sensors NO Audio Warning Alarm Reset Delay Clock Cycle Delay

Kevin Kerkvilet: 

Kevin Kerkvilet Hardware Space & Power Requirements

Implementation Requirements: 

Implementation Requirements Hardware Space There must be a free area to place our new hardware components Generated Power The total generated power must be greater then the total required power for each component Audio Output The current system must allow an interrupt into the audio system for a warning message

Hardware Space: 

Hardware Space Goals Seat Cushion Ribbon Cable Serial Cable Boxes

Goals: 

Goals We don’t want to change the appearance of the ride The PLC and circuits need to be stored somewhere safe and easy to access Maintenance of the system should be familiar to the current system emplaced (Just extra boxes to check)

The Seat: 

The Seat There is a circular hole in the middle of the seat. The connector from the Flex Point Bend Sensors were wired to the middle of the seat cushion to meet the requirements.

Ribbon Cable: 

Ribbon Cable The six zones were wired using ribbon cable The seat cushion was drilled wide enough in the circular area of the seat to feed the cable through Wooden Support Foam Pad Vinyl Covering The Bend Sensors Wired Ribbon connector is mounted on the wood.

Serial Cable: 

Serial Cable The ribbon cable is mounted to the seat to allow an easy way to remove the seat cushion The serial cable gives a sturdy connection from the seat to the PLC Serial Cable

Boxes: 

Boxes The dimensions of the box is approximately 15” x 6” x 6” The boxes are big enough to hold all our hardware and are hidden underneath track

String of Cars: 

# 20 # 2 # 1 . . . . . . . . Hardware Components Current Power Supply (Alternator) String of Cars Serial Cable

PLC Power: 

PLC Power The seat circuit, on/off switch, lean sensors, and audio message are power dependent of the PLC Needs to be measured for total amps across the inputs to find total needed power for the system One alternator is used to power 20 cars Total system amperage needed is approximately 300mA per system (per car)

Audio Requirements: 

Audio Requirements For demonstration purpose only The main concept lies in connecting our output into the existing Disney sound system that the cars already have Main mission is to set up detection system that will prevent a guest from leaving a moving vehicle

Audio Options: 

Audio Options Setup a switching circuit between the speakers among Disney’s current audio and the PLC audio message Another possibility would be to have a way to have the PLC audio message to override the Disney audio via higher FM transmission

Future Expansions: 

Future Expansions RFID Communications Will be able to communicate information to and from each vehicle Database Collect data from the PLC to predict guest movement during a ride.

Slide49: 

Prototype Costs

Implementation Costs: 

Implementation Costs

Work Distribution: 

Work Distribution

Slide52: 

Work Chart