Perfect campus health punching is necessary in domestic colleges and universities, and it needs to be reported and opened every day whether it is a holiday or a normal school.
If there is a deviation in positioning, it may be caused by poor GPS satellite signal of mobile phone and unstable network. If the deviation is less than one kilometer, it is valid and can be submitted normally; If the error is too large, you can turn off the phone for positioning, and then turn it on again for operation and modification.