Method for safely inputting passwords and POS machine

Abstract

The invention provides a method for safely inputting passwords and a POS machine. The method comprises the steps that two or more infrared distance sensors are arranged on a password keyboard area of the POS machine; a sensing distance is preset; the POS machine is used for reading information of a magnetic card; the infrared distance sensors arranged on the password keyboard of the POS machine is triggered; if the infrared distance sensors receive sensing signals within the preset sensing distance, sensing information is sent to a control unit of the POS machine; the control unit of the POS machine judges whether the sensing information of all the infrared distance sensors is received or not, if yes, the POS machine switches to a password input interface, and if not, the POS machine switches to a prompt state. Accordingly, on one hand, it is guaranteed that a user shields the password keyboard in place before entering the password input interface, on the other hand, in the password data receiving process, shielding sensing and in-time prompting can also be conducted, it is guaranteed that the user inputs the passwords under the condition that the password keyboard is completely shielded, fund security of the user is effectively guaranteed, and the card use safety of the user is improved.

Description

technical field [0001] The invention relates to the field of POS machines, in particular to a method for safely inputting passwords and a POS machine. Background technique [0002] With the continuous development of technology, hand-held mobile POS terminals have brought a lot of convenience to our bank card payment. However, in order to meet the requirements of portability and convenience, the external structure of the POS machine often does not have a password shielding frame. When password, if the other hand is not used to block the operator's hand, it is easy for people around to see the password, which will affect the user's card security. In view of this problem, the current POS machine mainly adopts two methods: 1. directly enter the password input interface without blocking reminder to the user; 2. directly enter the password input interface and simultaneously block the password reminder to the user. For the first approach, since most of the current users do not hav...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for securely inputting passwords and a POS machine, which solves the problem that the prior art does not remind the user to block when entering the password, and can input the password without blocking, ignoring the importance of keyboard blocking. issues that pose a serious security risk

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