Device for realizing security of image-monitoring and anti-collision integrated tower crane

The invention relates to a device for realizing security of an image-monitoring and anti-collision integrated tower crane, in particular to device for realizing security of a tower crane by using a variety of sensors. The invention solves the anti-collision problem in operation of the conventional tower crane. A voltage is generated according to the weight of a heavy object hung on a gravity sensor, a current of 0-20 mA or 4-20 mA is generated by a operational amplifier, the current is converted into a voltage by using a resistor, a sampled voltage is converted into a pulse by using a V/F (Voltage/Frequency) conversion chip, the pulse is transmitted to a processor for processing through an optical coupling isolating circuit, and the processor obtains the weight of the object on a hook of the tower crane according to the number of the pulses sampled in a unit time.