STC89C52RC单片机八路抢答器设计：功耗低，响应精准

since defined. support system management server and consumption POS machine automatically on Shi on Shi frequency can set, support parameter automatically Xia biography, and personnel automatically Xia biography, and task query, function, support variety report: trading summary table, and purchase statistics, and filling buckle adjustable statistics, and withdrawals statistics, and Back to statistical tables, entry tables, manually consumption Details tab, employee consumption summary accounting and management requirements. (3.) parking lot management systemRehabilitation Centre underground parking lots, and locations in the medical Building basement, second floor. Parking management system is a set of video surveillance, access management, parking management, leading spaces, vehicle access control and integrated system management in one. Car park management system and security monitoring system, alarm linkage system, different settings in the import and export control system control box, parking control system in comprehensive management of comprehensive medical building security monitoring center, audio and video surveillance, alarm systems and other new Exchange each other, form a comprehensive, convenient and efficient Ta systems. Parking entrance equipped with image acquisition, comparison system, vehicle access and egress will be automatically collected and stored image information of the vehicle, and according to the card number automatically from the database to bring up the corresponding vehicle information and accurate comparison of the pictures confirm that prevent a vehicle from being stolen. Acquisition of image information is automatically saved for later, and verification. Parking out entrance has alarm device, once access entrance location occurred accident situation, parking site management personnel can timely triggered alarm device, will

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