Back to results
US 10,294,081 B2Granted
Escalator braking system and escalator braking control method
AssigneeOtis Elevator Company
InventorLongWen Wang
Life of this patent
Estimating the term…
Abstract
The present invention provides an escalator braking system and an escalator braking control method, belonging to the field of escalator braking control technology. In the escalator braking system and the escalator braking control method according to the present invention, a braking mode is determined based on the classification of failure information in combination with the corresponding image information, and a braking device is controlled based on the braking mode, so that the braking is more intelligent, scientific and accurate, the occurrence of security problems caused by the failure can be effectively prevented, and the probability of accident is reduced.
Claims21
An escalator braking system, comprising a braking device and a failure monitoring device, further comprising:
- a failure classification module for classifying failure information monitored by the failure monitoring device at least according to braking distance requirements;
- an escalator operation image acquiring and processing device for performing real-time image acquisition of the operation of the escalator and performing processing to obtain image information corresponding to the occurrence of the failure;
- and
- a braking distance control module for determining a braking mode based on the classification of the failure information in combination with the corresponding image information and controlling the braking device based on the braking mode;
- wherein the braking distance control module is further configured to determine a brake mode based on the image information obtained by performing processing when the failure information is not monitored by the failure monitoring device.
2 more elements
An escalator braking system, comprising a braking device and a failure monitoring device, further comprising:
- a failure classification module for classifying failure information monitored by the failure monitoring device at least according to braking distance requirements;
- an escalator operation image acquiring and processing device for performing real-time image acquisition of the operation of the escalator and performing processing to obtain image information corresponding to the occurrence of the failure;
- and
- a braking distance control module for determining a braking mode based on the classification of the failure information in combination with the corresponding image information and controlling the braking device based on the braking mode;
- wherein the classification of the failure information according to the braking distance requirements comprises:
- a short distance fast braking safety failure,
- a long distance slow braking safety failure,
- a medium distance normal braking non-safety failure, and
- a long distance slow braking non-safety failure.
6 more elements
An escalator braking system, comprising a braking device and a failure monitoring device, further comprising:
- a failure classification module for classifying failure information monitored by the failure monitoring device at least according to braking distance requirements;
- an escalator operation image acquiring and processing device for performing real-time image acquisition of the operation of the escalator and performing processing to obtain image information corresponding to the occurrence of the failure;
- and
- a braking distance control module for determining a braking mode based on the classification of the failure information in combination with the corresponding image information and controlling the braking device based on the braking mode;
- wherein the failure monitoring device comprises:
- a safety chain monitoring module for monitoring a hardware trigger type failure;
- and
- a first logic failure monitoring module for monitoring a logical failure of the operation of the escalator;
- wherein the failure monitoring device further comprises:
- a second logic failure monitoring module for monitoring an internal logic failure of the escalator braking system.
7 more elements
An escalator braking system, comprising a braking device and a failure monitoring device, further comprising:
- a failure classification module for classifying failure information monitored by the failure monitoring device at least according to braking distance requirements;
- an escalator operation image acquiring and processing device for performing real-time image acquisition of the operation of the escalator and performing processing to obtain image information corresponding to the occurrence of the failure;
- and
- a braking distance control module for determining a braking mode based on the classification of the failure information in combination with the corresponding image information and controlling the braking device based on the braking mode
- wherein the escalator operation image acquiring and processing device comprises an image sensor and an image processing system, wherein the image information obtained by performing processing by the image processing system comprises whether there is a passenger on the escalator, whether the passenger has a dangerous behavior, and/or whether there is a passenger at the exit or entrance of the escalator.
2 more elements
An escalator braking system, comprising a braking device and a failure monitoring device, further comprising:
- a failure classification module for classifying failure information monitored by the failure monitoring device at least according to braking distance requirements;
- an escalator operation image acquiring and processing device for performing real-time image acquisition of the operation of the escalator and performing processing to obtain image information corresponding to the occurrence of the failure;
- and
- a braking distance control module for determining a braking mode based on the classification of the failure information in combination with the corresponding image information and controlling the braking device based on the braking mode;
- wherein the braking device is an electrically controlled braking device, comprising:
- a variable frequency driver for controlling the operation of an electric motor for driving the escalator;
- and
- a brake lining for mechanically braking a rotor of the electric motor;
- wherein the variable frequency driver is configured to control the braking distance based on the determined braking mode;
- wherein the braking process corresponding to each braking mode comprises:
- a first braking stage corresponding to controlling a rotational speed of the electric motor by the variable frequency driver to decrease from a normal operating speed to a predetermined speed;
- and
- a second braking stage corresponding to performing braking by the brake lining to brake from the predetermined speed to a speed of zero.
10 more elements
An escalator braking control method, comprising:
- classifying monitored failure information at least according to braking distance requirements;
- performing real-time image acquisition of the operation of the escalator and performing processing to obtain image information corresponding to the occurrence of the failure;
- determining a braking mode based on the classification of the failure information in combination with the corresponding image information;
- and
- controlling a braking device based on the braking mode.
2 more elements
An escalator braking control method, comprising:
- performing real-time image acquisition of the operation of the escalator and performing processing to obtain image information;
- determining a braking mode based on the image information when failure information is not monitored;
- and
- controlling a braking device based on the braking mode.
1 more element
Dependencies are inferred from the claim text.