Intelligent human body inductive alarm device for mining

The utility model discloses an intelligent human body inductive alarm device for mining, comprising a power source case, a detection unit, pyroelectric infrared sensors, etc. The power source case is an explosion isolating and intrinsically safe device. A mainframe case and the pyroelectric infrared sensor are both intrinsically safe devices. The detection unit inside the mainframe case is the core part of the device, comprising a computer, a signal amplifier, an alarm/output circuit, etc. A plurality of the pyroelectric infrared sensors can be adopted and externally connected, and a data acquisition circuit is added. The computer adopts a Flash single-chip computer or a DSP digital signal processor. The utility model which is suitable for using under coal mine and in the environment of explosive gas realizes audible and visual alarm when people approach or enter a dangerous area and shut down and lockout of relative devices, guarantees people's safety free from device injury. The device with multiple functions and high reliability is an intelligent product comprising computers.