1, used in railway industry: when driving a train, train drivers need to point their fingers at related objects/signals when they encounter door opening and closing, starting, stopping, passing through a station, speed limit and recognizing different railway signals, and then tell them with their mouths.

2. Used in the electromechanical engineering industry: The electromechanical engineering industry, such as the elevator industry, is still one of the high-risk industries. This kind of industry can implement the confirmation of finger difference; When employees are depressed or in a hurry, they point to the process that needs vigilance (for example, when the power supply is about to be cut off, they point to the power switch) and shout loudly, "Be careful of getting an electric shock, OK!" Slogans, etc. , can improve the safety awareness level of employees to an extremely awake state and reduce the possibility of accidents.

instructions

Aiming at the safety actions of the railway industry, that is, pointing at things, reciting and confirming, and using both hands attentively, can achieve the effect of reducing accidents caused by human errors. Later, it was widely used in different fields, including architecture, manufacturing, electromechanical engineering and so on. There are also different names for pointing difference confirmation: pointing difference call, pointing difference call, pointing difference call, pointing difference confirmation call and so on.

Application of train operation When preparing for train operation, it is necessary to confirm that all the equipment of the train meets the operating conditions by means of index difference confirmation. When the train conductor operates the door, he will confirm the opening and closing state of the door by means of finger difference confirmation.