System and method for establishing one-object-one-code association relationship under spider hand

The invention discloses a one-object-one-code association relationship establishment system and method under a spider hand, and relates to the technical field of Internet of Things, the system comprises a spider hand, an air pressure detector, a bag detection electric eye, a reading head deduction photoelectric device, a deduction reading head and a controller; the air pressure detector is arranged on an air source pipeline of a spider hand; the controller is used for detecting whether the spider hands effectively grab bags on the logistics line body or not through the air pressure detector; when the bag is not grabbed, the controller controls the bag detection electric eye to scan the bag which is not grabbed currently; when the bag passes through the reading head deduction photoelectricity, the controller controls the reading head deduction photoelectricity to send a reading signal to the deduction reading head; the deduction reading head is used for reading the two-dimensional codes of the bags after recei