A Supply Chain Information Pushing Method for Logistics Park Based on Internet of Things Technology

Table 1

Comparison of several identification technical parameters.

Parameter	Optical recognition	Bar code	RFID identification
Data volume	1-100 B	1-100 B	16-64 KB
Read mode	Photoelectric conversion	Laser scanning	Wireless communication
Recognition distance	Very close	Near	Far
Recognition speed	Less than 3S	Less than 4S	Less than 4S
Artificial intelligence	Probably	Restricted	Impossible
Machine recognition	Good	Good	Good
Confidentiality	Nothing	Nothing	Good
Light masking effect	Invalid	Invalid	No impact
Moisture effects	Serious	It is serious	No impact
Azimuth effect	Small	Small	No impact
Multitarget recognition	No	No	Can