Patent ID: 11862494
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC H  B  G | IPC B  G  H

Claim 0:
1. A crane monitoring system, comprising:
a first detection apparatus configured to detect a position of a crane, to send a first detection signal when the crane is located above a Front Opening Unified Pod (FOUP) load port of a semiconductor processing device, and to send a second detection signal when the crane leaves a space above the FOUP load port;
a processing apparatus electrically connected to the first detection apparatus, and configured to generate a start control signal responsive to receiving the first detection signal, and to generate a stop control signal responsive to receiving the second detection signal; and
a second detection apparatus electrically connected to the processing apparatus, and configured to start a detection of whether there is a foreign matter between the crane and the FOUP load port after receiving the start control signal, and to stop the detection after receiving the stop control signal,
wherein the processing apparatus generates the start control signal and sends the start control signal to the second detection apparatus after the processing apparatus continuously receives the first detection signal within a first preset time,
wherein the processing apparatus comprises a counting assembly for counting a number of times of starting and stopping of the second detection apparatus and counting capacity of the semiconductor processing device based on the number of times of starting and stopping of the second detection apparatus.