Importance

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Abstract

A method of a contactless safeguarding of a machine is provided in which a plurality of protected fields configured in the environment of the machine are monitored for protected field intrusions by at least one optoelectronic sensor and, on a protected field intrusion, a safe output signal is generated at a safe output associated with the protected field. The protected fields are configured such that a vehicle approaching the machine results in a different sequence of protected field intrusions than a person approaching the machine and the sequence of protected field intrusions is evaluated to distinguish the vehicle and the person from one another. Three-dimensional protected fields are monitored that have at least two layers, having a lower layer and an upper layer arranged thereabove; and in that the configuration of the protected fields in the lower layer differs from the configuration of the protected fields in the upper layer.

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First Claim