Safety mechanism for comparing sensing signals

A safety mechanism for comparing sensing signals which is disposed in a light quantity sensor of an automatic passing apparatus, the safety mechanism comprising:

• at least one emitting convex lens group, wherein the at least one emitting convex lens group includes one or more emitting convex lenses;
• at least one light emitting module, wherein the at least one light emitting module includes one or more light emitting components, and each of the light emitting components is configured to project a light to the respective emitting convex lens by a geometrical optics approach, so as to form a corresponding light field area and a corresponding luminous flux;
• at least one receiving convex lens group, wherein the at least one receiving convex lens group includes one or more receiving convex lens;
• at least one light receiving module, which includes at least one light receiving component and is a photoelectric conversion component, wherein the luminous flux of the light field area is configured to reflect corresponding one of reflection light depending on an environment, and is configured to reflect the corresponding one of reflection light to the respective light receiving component through the at least one receiving convex lens group by a geometrical optics approach, and is configured to convert the reflection light into a corresponding electrical signal;
• and
• at least one control module, wherein the at least one light receiving module is electrically connected to the at least one control module, the at least one control module includes at least one processing unit, and the processing unit includes an electronic circuit, a micro-controller, and a memory;
• wherein the corresponding electrical signal converted by the light receiving component is input and stored in the processing unit;
• wherein, when a sensed body is absent from the light field area, the at least one light receiving module is configured to generate a first environment electrical signal, and the first environmental electrical signal is stored in the processing unit of the at least one control module for comparison and reference;
• wherein, when the sensed body is present in the light field area, the at least one light receiving module is configured to generate a first changing electrical signal regardless of whether the sensed body is in a dynamic or a static state, and the first changing electrical signal is compared with the first environment electrical signal that is stored in the processing unit;
• in response to a waveform of the first changing electrical signal being different from a waveform of the first environment electrical signal, the at least one control module enable the automatic passing apparatus to be in an opened state.

A safety mechanism for comparing sensing signals disposed in a light quantity sensor of an automatic passing apparatus, comprising:

• at least one emitting convex lens group, wherein the at least one emitting convex lens group includes one or more emitting convex lenses;
• at least one light emitting module, wherein the at least one light emitting module includes one or more light emitting components, wherein the light emitting component is configured to project light to the respective emitting convex lens by a geometrical optics approach, so as to form a corresponding light field area and a corresponding luminous flux;
• at least one receiving convex lens group, wherein the at least one receiving convex lens group includes one or more receiving convex lens;
• at least one light receiving module, wherein the at least one light receiving module includes one or more light receiving components and is a photoelectric conversion component, wherein the luminous flux of the light field area is configured to reflect corresponding reflection light depending on an environment, is configured to reflect to the respective light receiving component through the at least one receiving convex lens group by a geometrical optics approach, and is configured to convert the reflection light into a corresponding electrical signal;
• and
• at least one control module, wherein the at least one light receiving module is electrically connected to the at least one control module, the at least one control module includes at least one processing unit, and the processing unit includes an electronic circuit, a micro-controller and a memory;
• wherein the corresponding electrical signal converted by the light receiving component is input and stored in the processing unit;
• wherein a door leaf light emitting module and a door leaf light receiving module are configured to correspondingly project and sense a moving position of a door leaf of the automatic passing apparatus, so as to form a luminous flux of a door leaf light field area;
• wherein, when the door leaf is fully opened and the sensed body is absent from the door leaf light field area, the door leaf light receiving module is configured to generate a second static electrical signal of the door leaf, and the second static electrical signal is additionally stored in the processing unit of the at least one control module for comparison and reference;
• wherein, when the door leaf is fully opened and the sensed body is present in the door leaf light field area, the door leaf light receiving module is configured to generate a second changing electrical signal of the door leaf regardless of whether the sensed body is in a dynamic or a static state, and the second changing electrical signal is compared with the stored second static electrical signal in the processing unit;
• wherein in response to a waveform of the second changing electrical signal being different from a waveform of the second static electrical signal, the at least one control module is configured to enable the automatic passing apparatus to be in an opened state;
• wherein a closing operation of the door leaf of the automatic passing apparatus is performed at a constant velocity, such that the door leaf reflects reflection light with regular variations within an operation area of the door leaf;
• wherein the door leaf light receiving module is configured to output a third door leaf electrical signal, and the third door leaf electrical signal is additionally stored in the processing unit of the at least one control module;
• wherein the third door leaf electrical signal generated from each closing operation of the door leaf is compared with the third door leaf electrical signal that is stored in the processing unit, and the processing unit of the at least one control module is configured to enable the door leaf of the automatic passing apparatus to complete a closing action when a same regularly changing fluctuation is detected.