Automatic reading method and device of mechanical pointer type instrument

The invention discloses an automatic reading method and device for a mechanical pointer type instrument, and relates to the field of digital transformation of mechanical pointer type instruments. The method comprises the following steps: acquiring light intensity data monitored by a photoelectric sensor arranged corresponding to a dial plate of the mechanical pointer type instrument as target light intensity data; and determining the pointer reading of the mechanical pointer instrument corresponding to the target light intensity data by using a relation model representing the relation between the light intensity data and the pointer reading. According to the embodiment of the invention, the position/angle of the pointer is calculated according to the light intensity distribution information, and then the digital signal is output, so that automatic reading of a mechanical pointer type instrument is realized, and the method is simple and beneficial to miniaturization and integration. 本发明公开一种机械指针式仪表的自动读数方法及装置，涉及