Research Article
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 |
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