Abstract: An anti-misplug detection mechanism may include: a plurality of first communication interfaces, and anti-misplug detection assemblies. The plurality of first communication interfaces may be used to be mutually plug-in connected to second communication interfaces on the code scanners one to one to form a plurality of code scanner plug-in assembly groups; and the anti-misplug detection assemblies may be arranged in groups with the first communication interfaces, and include a first matching structure, a second matching structure and a detector. The first matching structures and the first communication interfaces may be relatively fixed one to one, the second matching structures may be connected to the code scanners one to one through connecting elements, and a first mistake-proofing feature and a second mistake-proofing feature of the same group may be matched with each other.