RFID function: according to the specific needs of the project, we need to consider the card reading distance and signal strength; Protection level: only a higher protection level can guarantee the operation in harsh industrial environment; For example, the handheld data collector integrated by Dongda University reaches IP67, which is waterproof, dustproof and anti-falling.

Sub-technology signal acquisition cards include the following series: USB signal acquisition cards: various models, dozens of serial signal acquisition cards: various models, dozens of wireless signal acquisition cards: various models, dozens of which can collect analog voltage, current, rotational speed, digital quantity and video signals and send them to the upper computer software.

1 Xu Yan Xu Yan brand belongs to Nanjing Xu Yan electric technology co., ltd, which was established in 2009. Xu Yan Electric Technology Co., Ltd. has a high-quality and high-level R&D team in the fields of embedded application development, industrial control terminals and digital new energy.

The better brands of acquisition cards are Razer, Tian Min, Woori, Lvlian, Yamazawa, Yuangang, Pinaco, Kangneng Pushi, Merlot and Osprey. Razer is a lifestyle brand for players, and Razer Three-headed Snake is a well-known LOGO in the field of game e-sports.