Elevator car video signal transmission system and method

Abstract

The invention discloses an elevator car video signal transmission system and method, and relates to the field of elevators. The system comprises a video collection device, an image processing device, a first signal conversion device, an unshielded two-core cable, a second signal conversion device, a wireless signal transmission device, a signal transit device, a wireless signal receiving device and an image display device; the video collection device is in signal connection with the image processing device; the image processing device is in signal connection with the first signal conversion device and the wireless signal transmission device separately; the first signal conversion device is in signal connection with the unshielded two-core cable; then the unshielded two-core cable is in signal connection with the second signal conversion device; the second signal conversion device is in signal connection with the image display device; the wireless signal transmission device is in signal connection with the signal transit device; the signal transit device is in signal connection with the wireless signal receiving device; the wireless signal receiving device is in signal connection wit the image display device.

Description

technical field [0001] The invention relates to the field of elevators, in particular to an elevator car video signal transmission system and method. Background technique [0002] With the rapid economic development and the continuous deepening of the urbanization process, my country's elevator industry is experiencing a period of rapid development. my country's elevator production increased from 10,300 units in 1990 to 365,000 units in 2010, with a compound annual growth rate of 19.5%. Domestic elevator demand increased from only 37,200 units in 2000 to 329,700 units in 2010. , The number of elevators in my country exceeds 1.6 million units. For details, please refer to the "China Elevator Industry Market Demand Forecast and Investment Opportunity Analysis Report". [0003] As the main tool for carrying passengers / goods in high-rise buildings, elevators will be used more and more widely in the future. It is the most common public place, so it is necessary to install surveil...

AI Technical Summary

Problems solved by technology

However, the elevator shaft is a relatively complex environment. The video surveillance images of many projects are interfered to varying degrees in the elevator shaft environment. This has always been one of the most common, difficult to deal with, and one of the most concerned problems.

[0004] In addition, the current elevator monitoring network signal transmission still has the following two problems: First, the hoistway environment interference of elevator operation is very serious, how to reduce the loss of network signals has always been a problem; second, the well construction conditions of elevator operation are poor, if Upgrade the original analog monitoring to network monitoring. The traditional non-standard solution of binding the network cable to the accompanying cable is high in cost and poor in reliability. It has always hindered the upgrade of elevator monitoring; the third is the signal transmission from the elevator car to the monitoring room The distance is long, and the signal cannot be transmitted to the computer room stably and clearly, which also plagues the construction project

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