An anonymous reader shares a Fortune report: General Electric will put cameras, microphones, and sensors on 3,200 street lights in San Diego this year, marking the first large-scale use of "smart city" tools GE says can help monitor traffic and pinpoint crime, but raising potential privacy concerns. Based on technology from GE's Current division, Intel and AT&T, the system will use sensing nodes on light poles to locate gunshots, estimate crowd sizes, check vehicle speeds and other tasks, GE and the city said on Wednesday. The city will provide the data to entrepreneurs and students to develop applications. Companies expect a growing market for such systems as cities seek better data to plan and run their operations. San Diego is a test of "Internet of things" technology that GE Current provides for commercial buildings and industrial sites.