Abstract: An LED lamp includes a heat dissipation lamp holder provided with a mounting groove on a front side thereof; an LED lamp panel mounted in the mounting groove; a driving power supply electrically connected to the LED lamp panel and configured to power the LED lamp panel; a switch assembly located on the heat dissipation lamp holder and electrically connected between the LED lamp panel and the driving power supply; and a lens plate located on a side of the LED lamp panel emitting light and capable of abutting against the switch assembly. The switch assembly disconnects the LED lamp panel from the driving power supply when the lens plate is separated from the switch assembly, and the switch assembly electrically connects the LED lamp panel and the driving power supply when the lens plate abuts against the switch assembly.

Abstract: A method for controlling passive infrared sensors includes obtaining a three-dimensional image of a space to be laid out; arranging a plurality of PIR sensors and a plurality of sensor lamps on the three-dimensional image, a distance L between each adjacent two PIR sensors is equal to or less than a sensing radius of the PIR sensor; connecting each PIR sensor to a wireless network including a plurality of wireless sub-networks, each wireless sub-network includes four PIR sensors and at least one sensor lamp; controlling the four PIR sensors to sense living bodies in pairs every detection period, and when sensing data of living body is fed back, determining that there is at least one living body in the wireless sub-network; and determining a working state of the sensor lamp according to whether there is at least one living body in the wireless sub-network.