Door lock signal processing device of elevator landing door

Abstract

The invention discloses a door lock signal processing device of an elevator landing door, comprising floor door lock signal branches which are arranged in parallel and a main control board used for receiving output information of each floor door lock signal branch, wherein each floor door lock signal branch comprises a door lock switch, a voltage conversion card which is electrically connected with the door lock switch and an external calling controller which is electrically connected with the voltage conversion card, each external calling controller of each floor is electrically connected to the main control board according to a communication protocol, each floor door lock switch accesses each voltage conversion card of a corresponding floor, and the output of each voltage conversion card accesses each external calling controller of the corresponding floor, therefore, door lock signals of each floor can be transferred to the main control board through each external calling controller according to the communication protocol, the main control board can obtain state information of the landing door lock switch of each floor by recognizing a floor number of received signal data contrasting with the communication protocol, and the invention can be conveniently maintained and debugged and eliminates safety hidden dangers.

Description

technical field [0001] The invention relates to an elevator floor door lock signal processing device. Background technique [0002] The landing door of the elevator is the part that passengers or users first touch when they take the elevator. Its function is to seal the entrance and exit of the floor well, so as to ensure that people do not come into contact with the components in the well on the floor, and avoid falling into the well or shearing. cut accidents. The landing door of the elevator is an area where accidents frequently occur, so the landing door plays a decisive role in the safe operation of the elevator. [0003] The usual landing door lock signal processing device connects the landing door lock switches 1' of each floor in series, connects them to the control cabinet through a long cable, and then connects them through an AC contactor 2' in the control cabinet. To an input point of the main control board 3', such as figure 1 As shown, the biggest disadvanta...

AI Technical Summary

Problems solved by technology

[0003] The usual landing door lock signal processing device connects the landing door lock switches 1' of each floor in series, connects them to the control cabinet through a long cable, and then connects them through an AC contactor 2' in the control cabinet. To an input point of the main control board 3', such as figure 1 As shown, the biggest disadvantage of the existing landing door lock signal processing device is that the main board can only obtain the information whether the landing door lock is normal or abnormal from the door lock signal, but if the landing door lock is abnormal, the main control board 3' and It is impossible to judge which floor’s floor door lock is abnormal, which brings great inconvenience to the on-site maintenance and debugging personnel, and greatly reduces the efficiency of elevator maintenance and debugging; The state of the landing door lock also makes the elevator control system always have certain safety hazards and technical loopholes

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