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Control device for escalator and automatic sidewalk

A technology of moving walks and control devices, which is applied in the energy efficiency, transportation and packaging of escalators and escalators, can solve the problems such as the conveying capacity and speed operation of escalators during peak hours that are not well resolved, and can improve the conveying capacity of pedestrians, improve the Conveying capacity, the effect of reducing friction loss

Inactive Publication Date: 2011-11-09
SHANGHAI MITSUBISHI ELEVATOR CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can better solve the problem of light-load energy saving, it cannot run at a speed higher than that of conventional escalators when the flow of people is large. At present, none of the escalators in use has solved how to improve the conveying capacity of the escalator during peak hours. The problem

Method used

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  • Control device for escalator and automatic sidewalk
  • Control device for escalator and automatic sidewalk
  • Control device for escalator and automatic sidewalk

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] see figure 1 As shown, the escalator and moving walk control device includes:

[0029] The three-phase rectifier component 3 is connected with the three-phase power supply of the mains to realize AC-DC conversion.

[0030] The inverter assembly 2 is connected with the three-phase rectification assembly 3 to realize DC-AC conversion and provide driving power supply voltage for the motor.

[0031] The motor 1 is connected with the inverter assembly 2 and is used to drive the escalator 9 .

[0032] The microprocessor computing system 4 is connected with the three-phase rectifying device assembly 3 and the inverter device assembly 2, and is used for the control and driving of the escalator 9.

[0033] Two-way current transformers 7, 8 measure the U-phase and V-phase currents of the motor 1 respectively, and input them to the microprocessor computing system 4 for driving the motor 1 and estimating the load factor of the escalator 9;

[0034] Pedestrian detection devices 5...

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PUM

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Abstract

The invention discloses a control device for an escalator and an automatic sidewalk, comprising a rectifier device assembly, an inverter device assembly, a motor, a microprocessor operating system, a current transformer and a pedestrian detection device at escalator top and bottom entry. The current transformer and the pedestrian detection device are used for estimating an escalator load factor, automatically changing operation speed of the escalator and the automatic sidewalk according to difference of the escalator load factors, and increasing the escalator speed to exceed a rated speed in heavy load. The no-load energy saving function of the escalator and the automatic sidewalk can be achieved, the pedestrian conveying capability when the escalator is under a heavy load can be increased, and the energy can be saved furthest in a light load.

Description

technical field [0001] The invention relates to the control field of escalators and moving walk systems, in particular to a control device for escalators and moving walk systems. Background technique [0002] Escalators and moving walks as pedestrian conveying systems are generally considered to operate at a constant speed, and their electric drive traditionally uses the simplest direct power supply drive system from the grid. However, most escalators have the characteristics of regular intermittent use. For example, the subway runs every 4 minutes, and the flow of people leaving the station lasts on the escalator for about 1 minute. It was evacuated in time, and the other 3 minutes were in the state of no-load or light-load operation. For the application occasions of commercial escalators such as office buildings, except for the rush hours of commuting, other times are basically in the state of no-load or light-load operation. Another example is that the inbound flow of p...

Claims

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Application Information

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IPC IPC(8): B66B25/00
CPCY02B50/225Y02B50/00
Inventor 黄维纲孙海勇顾海强
Owner SHANGHAI MITSUBISHI ELEVATOR CO LTD
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