Abstract: A smart zipper includes a zipper, a voltage generator, a voltage detector, and a processor. The zipper includes a first left tooth and a first right tooth. The first left tooth is electrically connected to a first left wire and is supplied with a supply voltage. The first right tooth is electrically connected to a first right wire. The voltage generator generates the supply voltage. The voltage detector detects the voltage of the first right wire to generate a first detection signal. The processor determines first coupling information about whether the first left tooth is electrically connected to the first right tooth, according to the first detection signal.

Abstract: A smart zipper includes a zipper, a voltage generator, a voltage detector, and a processor. The zipper includes a first left tooth and a first right tooth. The first left tooth is electrically connected to a first left wire and is supplied with a supply voltage. The first right tooth is electrically connected to a first right wire. The voltage generator generates the supply voltage. The voltage detector detects the voltage of the first right wire to generate a first detection signal. The processor determines first coupling information about whether the first left tooth is electrically connected to the first right tooth, according to the first detection signal.

Abstract: A hydroponic device includes a water tank, a drain pan, a hydroponic module and a light emitting diode module. The water tank delivers water to the drain pan via a drain pump. The water is then dispensed to each pot body of the hydroponic module. Each pot body includes an inner pot and an outer pot. Water inside the inner pot will flow to the outer pot through the draining hole. Water will flow out of an overflow outlet and re-enter the water tank if the water level is higher than the overflow outlet. The light emitting diode module is disposed above the hydroponic module.

Abstract: An image acquisition method for an image acquisition apparatus is provided. The image acquisition method includes the steps of exposing an image acquisition platform and moving an optical module from an initial position to a hiding position. The hiding position is located at an opaque area of the image acquisition platform. The opaque area is used for concealing the light emitted from the optical module. The image acquisition method of the invention prevents the light from reaching and irritating the user's eyes when the user is operating the image acquisition apparatus.