Global Public Safety Solution For Smart City Market By Type (Critical Communication Network, Biometric Security And Authentication System, Emergency And Disaster Management, Backup And Recovery System, Public Address And General Alarm, Surveillance System), By Application (Public Transportation Security, Critical Infrastructure Security, Disaster Management, Medical Emergency Service, Firefighting Services, Law Enforcement and Intelligence Agencies, Others), By Region and Key Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2019-2028