'Smart Park' Is Keeping Watch Surveillance cameras, infrared sensors and other high-tech gadgets help monitor facilities. To civic planners in Glendale, Palmer Park has everything a recreation area needs  kiddie swings, walking trails and infrared sensors concealed in the shrubbery. If someone scales the fence after the park closes at 10 p.m., more than a dozen electronic sentries whirl into action. One foot on the manicured lawn triggers the sprinklers, while the sensors set off alarms at the park rangers' headquarters. <snip> http://www.latimes.com/news/local/la-me-parks5may05,1,2646721.story?coll=la%... Of course, tripping the sensors without going inside the park would be entertaining...