Monitoring device for passage area of ​​passenger conveying device

Abstract

The invention discloses a monitoring device for a passenger conveying device passage area. The monitoring device comprises a plurality of vision sensors and a recognition module. The vision sensors are connected with the recognition module through signal lines. The vision sensors obtain continuous original plane images and transmit the original images to the recognition module through the signal lines; the recognition module first performs ashing on the collected original images to obtain gray level images, then analyzes the gray level images and finally transmits control instructions through a wireless communication mode to a control system of a passenger conveying device; a brightness formula is adopted for a method for the ashing of the original images through the recognition module, ashing treatment is performed on 24-bit color images obtained by the vision sensors, and the gray level of pixels in the images are uniformized. The monitoring device is based on an image recognition theory and can automatically analyze real-time images in the passage area and extract related information, and accordingly the passenger conveying device is controlled and runs safely in an energy-saving mode.

Description

technical field [0001] The invention relates to a monitoring device, in particular to a monitoring device for a passing area of ​​a passenger conveying device. Background technique [0002] After the introduction of frequency conversion technology, the passenger conveying device can reduce its operating speed during idle periods, or even stop temporarily, so as to reduce energy consumption. However, most of the frequency conversion passenger conveying devices can only distinguish the presence or absence of passenger flow at present. When the sensor does not detect passenger flow, the escalator keeps running at low speed or stops; once passenger flow is detected, the passenger conveyor will return to the rated speed. [0003] Chinese invention patent CN1108977C (announced on May 21, 2003) discloses a device for monitoring the passage area of ​​a passenger conveying device. At least one photoelectric signal sensor is installed in the turning area of ​​the handrail to monitor ...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the visual sensor must be used with optical lenses, which has a complex structure and an abrupt appearance; the collected image has spherical deformation, and the recognition algorithm is complex; in engineering practice, the relative position of the visual sensor and the monitoring scene often changes, and the recognition algorithm The versatility of the algorithm is low, or in order to improve the applicability of the algorithm, the accuracy of the recognition algorithm will decrease

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