Calorimeter verification signal automatic switching system

The utility model discloses an automatic switching system for verification signals of a heat meter. The automatic switching system comprises an RS485 connector, an infrared read head, an MBUS connector, a first RS485 module, a second RS485 module, an infrared/485 conversion module, an MBUS/485 conversion module, a power supply controller, a control module, a power supply module and a detection management and control device. According to the utility model, three types of joints are provided, so that detection personnel can select corresponding joints to connect the detection management and control device according to the interface type of a detected meter, plug and play is realized, and automatic control can be realized through programming according to which joint is used and how much voltage is provided. 本实用新型公开了一种热量表检定信号自动切换系统，包括RS485接头、红外读头、MBUS接头、RS485模块一、RS485模块二、红外/485转换模块、MBUS/485转换模块、电源控制器、控制模块、电源模块和检测管控装置。本实用新型提供三种类型的接头，使检测人员可以根据被检表的接口类型选择相应的接头连接检测管控装置，即插即用，而使用哪个接头及提供多少电压，可通过编程实现自动化控制。