The utility model provides a self-powered intelligent water meter based on
electromagnetic power generation. The self-powered intelligent water meter comprises a first built-in cavity, a second built-in cavity, a water inlet and a water outlet, the first built-in cavity and the second built-in cavity are connected through a bolt, the water inlet is communicated with the first built-in cavity, and the water outlet is communicated with the second built-in cavity. According to the utility model, the
electric signal generated by the coil is utilized, the self-power supply technology and the self-sensing technology are combined, and multiple functions are realized through the simple structure; a switch
control mode is adopted in the power
supply management system, so that
voltage and current are only used when needed, and no
electric energy is consumed in other time; the
power management circuit realizes a fully-automatic switching function through
battery voltage detection, so that the whole
system comprises the
wireless transmission module and can be called as a real self-powered
system; the energy of the
energy source is fully and efficiently utilized, so that no
energy loss exists in the energy conversion and distribution process.