Self service terminals are widely used in many businesses such as banks and shops due to their convenience. Their open frame touchscreens offer quick digital services without the need of staff, this helps greatly reduce queues，Attract more customers, meet customer needs, and reduce overhead costs. Especially with the rapid development of the banking and telecommunications industries, the rapid construction of business outlets, and the continuous improvement of the level of service and information construction in major industries, the demand for self-service terminals is increasing rapidly.