Toy Story Midway Mania! - Technology

Technology

Toy Story Midway Mania! is one of the most technologically sophisticated attractions yet developed by Walt Disney Imagineering, costing an estimated $80 million to design and build. It marks the company's first use of industrial ethernet for a ride's control system. Many of the parts for the attraction's control system came from two of Disney's corporate sponsors, Siemens AG and Hewlett-Packard.

The control system is divided into three components: one for the ride vehicles, one for the games and one more for the attraction's special effects. Programmable logic controllers in the vehicles alert the control system wirelessly via ProfiNET RT to the vehicle's speed and location. The central controller then sends its instructions back to the vehicles using a hard-wired network within the track. The one-way communications flow adds a factor of safety, even though the wireless network is protected against outside interference, such as a denial-of-service attack.

The attraction features more than 150 PCs, which includes one HP Windows XP PC for each of Midway Mania's 56 game screens, as well as others that control the special effects at each game. At the game screens, two tracking systems provide the game control system with the vehicle's exact location, making sure that gameplay is not affected by even minor differences in vehicle position. According to Jody Gerstner, executive director of show and ride controls, "The game doesn’t care if the car parks in the same spot every time. It just needs to know where each car has actually parked, and it can compensate." Additional sensors in the spring-action shooter provide information on its orientation, which is fine-tuned using data on the position of the ride vehicle at the screen and the rotation of the seats on the vehicle base.

All three sub-systems work together to handle any contingency. For example, if a delay or other vehicle stoppage is detected (such as might occur if the loading and unloading of the ride vehicles is taking longer than expected), the control system can command the affected game screens to launch a non-scoring practice round, so that guests may continue to shoot targets while they wait. Similarly, it can instruct the show control system to play an audio spiel telling guests about the delay.

As the games are software-based, changes can be made to the attraction's lineup of games without significant effort. In April 2010, Disney Parks announced plans to replace "Bo Peep's Baaa-loon Pop" with "Rex and Trixie's Dino Darts." The change took place on May 21, 2010. The new game includes one of the new characters from the Toy Story 3 feature film, which was released in June 2010.