Safety protection system for elevator maintenance

Abstract

A safety protection system for elevator maintenance includes an elevator shaft located within a building, a drive unit located at the top of the shaft, an elevator car located within the shaft, a maintenance unit located on top of the elevator car, and multiple elevator exterior doors located on each floor of the building. The safety protection system includes: a plurality of first switches installed at each elevator exterior door on each floor; a main controller installed at the drive unit at the top of the shaft; and a second switch installed at the top of the elevator car. Both the first and second switches are electrically connected to the main controller. When any of the first switches is activated, the main controller is communicated to forcibly stop all control permissions for the elevator car. When the second switch is subsequently activated, the main controller is communicated to grant the maintenance unit control permissions to operate the elevator car only.

Claims

1. A safety protection system for elevator maintenance, comprising an elevator shaft located within a building, a drive unit located at the top of the shaft, an elevator car located within the shaft, a maintenance unit located on top of the elevator car, and multiple elevator exterior doors located on each floor of the building, characterized in that the safety protection system comprises: a plurality of first switches installed at each elevator exterior door on each floor; a main controller installed at the drive unit at the top of the shaft, the main controller being electrically connected to the first switches; and a second switch installed at the top of the elevator car, the second switch being electrically connected to the main controller; wherein, When any of the first switches is turned on, the main controller is forcibly stopped from having any control over the elevator car. When the second switch is turned on, the main controller only grants the maintenance equipment control over the elevator car. An AI assistant device is connected to the main controller and is connected to at least one camera mounted on the top of the elevator car with one lens facing the elevator door. When the first switch is turned on, the camera is simultaneously activated to take pictures and transmit them to the AI ​​assistant device for image recognition and analysis. When the AI ​​assistant device determines that the maintenance personnel are overlapping between the shaft and the elevator door, it forces the elevator car to stop completely. A mobile device is carried by the maintenance personnel. The mobile device communicates with the first switch, and the maintenance personnel must use the mobile device to authenticate their identity within a limited time before the first switch can be turned on to command the main controller.

2. The safety protection system for elevator maintenance as described in claim 1, wherein the first switch can be connected to the main controller in parallel or in series, and the first switch can be connected to the main controller in a wired or wireless manner.

3. The elevator maintenance safety protection system as described in claim 2, wherein the first switch can be selected from one or more of the following opening methods: key, password, card, sensor, fingerprint and facial recognition.

4. The safety protection system for elevator maintenance as described in claim 1, wherein the main controller can be an external or directly programmed drive device installed at the top of the shaft, and the second switch can be an external or directly programmed maintenance device installed at the top of the elevator car.

5. The safety protection system for elevator maintenance as described in claim 1, wherein the AI ​​assistant device reads the elevator car's operating data and maintenance records, proactively provides maintenance personnel with the equipment parts that need maintenance or repair, and provides graphical prompts for maintenance or repair methods and operating steps.

6. The elevator maintenance safety protection system as described in claim 5, wherein the AI ​​assistant device includes a maintenance history function and an approval form function. The maintenance history function is used to record the elevator car usage and maintenance records, and the approval form function allows maintenance personnel to check completed items and sign electronically.

7. The elevator maintenance safety protection system as described in claim 5, wherein the AI ​​assistant device is wired to the second switch and communicates remotely to the maintenance personnel's cloud system, thereby reporting the elevator's real-time usage status and providing real-time fault notifications.

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