CN113148819A - Automatic staircase - Google Patents
Automatic staircase Download PDFInfo
- Publication number
- CN113148819A CN113148819A CN202110292570.2A CN202110292570A CN113148819A CN 113148819 A CN113148819 A CN 113148819A CN 202110292570 A CN202110292570 A CN 202110292570A CN 113148819 A CN113148819 A CN 113148819A
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- escalator
- load
- main machine
- working condition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B21/00—Kinds or types of escalators or moving walkways
- B66B21/02—Escalators
- B66B21/025—Escalators of variable speed type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B25/00—Control of escalators or moving walkways
- B66B25/006—Monitoring for maintenance or repair
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B27/00—Indicating operating conditions of escalators or moving walkways
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Abstract
The application relates to an escalator, which comprises a pressure detection unit, an image detection unit and a control unit, wherein the pressure detection unit is respectively arranged at an inlet and an outlet of the escalator and used for detecting the weight of a load entering the escalator and the weight of a load leaving the escalator; the image detection unit is used for detecting a payload entering the escalator; compared with the prior art, the scheme can judge the escalator load of the escalator through the pressure value of the pressure detection unit and further can judge the load borne by the escalator, so that maintenance personnel can perform periodical and important maintenance on the escalator with high utilization rate and high abrasion degree, the safety performance of the escalator is improved, and the maintenance time cost is greatly saved.
Description
Technical Field
The application relates to the technical field of escalators, in particular to an escalator.
Background
Escalators (including moving walkways) are common electromechanical devices in the field of building transportation, and the escalators are increasingly widely used in public places such as markets, airports, stations and the like as common transportation means for transporting passengers in an ascending and descending manner or in a straight-going manner.
The escalator comprises a truss, a plurality of steps mounted on the truss and an escalator main machine (such as a three-phase asynchronous motor) mounted on the truss and used for driving the steps, wherein the steps are connected in series through a step chain, and the step chain is driven by the escalator main machine to pull the steps to move along a guide rail.
At present, in the running process of an escalator, maintenance personnel cannot accurately maintain the escalator due to the fact that the load borne by the escalator cannot be judged, and therefore the maintenance time cost of the escalator is increased.
Disclosure of Invention
Based on this, it is necessary to solve the above technical problems, and the escalator provided by the present application can greatly save the maintenance time cost.
An escalator, comprising:
the pressure detection units are arranged at the inlet and the outlet of the escalator respectively and used for detecting the weight of a load entering the escalator and the weight of a load leaving the escalator;
an image detection unit to detect a payload entering an escalator;
the control unit is electrically connected with the pressure detection unit and the image detection unit respectively, determines the escalator load according to the weight of the effective load entering the escalator and the weight of the load leaving the escalator, and controls the escalator correspondingly according to the escalator load.
Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.
Optionally, when a plurality of loads sequentially enter or leave the escalator, the pressure detection unit detects the weight of the load, and after a preset period, the pressure detection unit detects the weight of the next load.
Optionally, the preset period range is 0.5s to 1 s.
Optionally, the payload entering the escalator has a weight P1The weight of the load leaving the escalator is P2；
The number of loads in the escalator is currently calculated in the following manner: n is (P1-P2)/(600N-800N).
Optionally, the escalator further includes an early warning unit connected to the control unit circuit, and the mode of correspondingly controlling the escalator according to the escalator load includes:
and when the total amount of the escalator load reaches a preset value, the early warning unit receives a signal from the control unit and carries out alarm prompt.
Optionally, the image detection units are arranged in two groups, and the two groups of image detection units are respectively arranged at an entrance and an exit of the escalator and are used for respectively detecting a payload entering the escalator and a payload leaving the escalator.
Optionally, the escalator system further comprises at least two upright posts, and each upright post group is sequentially arranged at an entrance of the escalator along the width direction of the escalator;
and a channel for only one load to pass through is formed between two adjacent groups of upright posts along the width direction of the escalator.
Optionally, the manner of correspondingly controlling the escalator according to the escalator load includes:
and the control unit correspondingly adjusts the rotating speed of the escalator main machine according to the escalator load.
Optionally, the rotating speed of the escalator main machine comprises three working conditions according to relative high and low, namely 0-speed, low-speed or high-speed;
when the escalator main machine is under a high-speed working condition and the escalator load changes, the voltage of the escalator main machine is correspondingly increased or reduced, so that the rotating speed of the escalator main machine approaches to the rotating speed before the load changes.
Optionally, when the working condition of the escalator main machine is a 0-speed working condition or a low-speed working condition, when the escalator load is increased from 0 and reaches a load preset value, the escalator main machine is switched to a high-speed working condition in a frequency conversion mode;
and/or when the escalator main machine is under a high-speed working condition and the escalator load is 0, the escalator main machine is switched to a low-speed working condition in a frequency conversion mode after maintaining the current working condition for a preset time;
and/or when the escalator is in a low-speed working condition and the escalator load is 0, the escalator main machine is switched to the 0-speed working condition in a frequency conversion mode after maintaining the current working condition for a preset time.
The escalator can judge the escalator load through the pressure value of the pressure detection unit, further can judge the load born by the escalator, and enables maintenance personnel to perform periodical key maintenance on the escalator with high utilization rate and high abrasion degree, so that the safety performance of the escalator is improved, and the maintenance time cost is greatly saved.
Drawings
Fig. 1 is a schematic structural view of an escalator according to an embodiment of the present disclosure;
fig. 2 is a control block diagram of an escalator according to an embodiment of the present disclosure;
FIG. 3 is a schematic structural view of the base of FIG. 1;
fig. 4 is a schematic structural diagram of the base in fig. 1.
The reference numerals in the figures are illustrated as follows:
1. an escalator; 2. a handrail; 3. a turning section; 4. a front edge plate; 5. a pressure detection unit; 6. an image detection unit; 7. a control unit; 8. an early warning unit; 9. a rotational speed detection unit; 10. a main machine of the escalator; 11. A base; 12. a support portion; 13. an installation part; 14. and a display module.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1, the present application provides an escalator 1, which includes a truss, a plurality of steps mounted on the truss, an escalator main machine 10 (e.g., a three-phase asynchronous motor) mounted on the truss and used for driving the steps, and handrails 2 located at both sides of the steps, wherein the steps are connected in series by a step chain to form a ladder path, and the step chain is driven by the escalator main machine 10 to pull the steps to move along a guide rail.
When the escalator 1 is in operation, the load borne by the escalator 1 cannot be judged, so that the escalator 1 cannot be accurately maintained. In order to solve the technical problem, in the present embodiment, as shown in fig. 1, the escalator 1 further includes a pressure detecting unit 5, an image detecting unit 6, and a control unit 7 electrically connected to the pressure detecting unit 5 and the image detecting unit 6, respectively, the pressure detecting unit 5 detects the weight of a load (in the present embodiment, the load is a passenger) entering the escalator 1 and the weight of a load leaving the escalator 1, respectively, the image detecting unit 6 detects a payload entering the escalator 1, and the control unit 7 determines an escalator load according to the weight of the payload entering the escalator 1 and the weight of the load leaving the escalator 1, and controls the escalator 1 accordingly according to the escalator load.
When the load passes through the entrance of the escalator 1, the pressure detection unit 5 detects the weight of the load, and the image detection unit 6 judges the moving direction of the load so as to determine the load entering the escalator 1. The escalator load of the escalator 1 can be judged through the pressure value of the pressure detection unit 5, and then the load borne by the escalator 1 can be judged, so that maintenance personnel can perform periodical and important maintenance on the escalator 1 with high utilization rate and high abrasion degree, the safety performance of the escalator 1 is improved, and the maintenance time cost is greatly saved.
In the present embodiment, the pressure detection unit 5 is a related art; the control unit 7 can be a single chip microcomputer or a central processing unit; the image detection unit 6 may be a camera. In some embodiments, the image detection unit 6 also has certain monitoring functions, end protection functions, and face recognition functions.
The pressure detecting units 5 are specifically arranged, referring to one embodiment, the pressure detecting units 5 are two groups, and the two groups of pressure detecting units 5 are respectively arranged at an inlet and an outlet of the escalator 1. The escalator 1 further comprises two front edge plates 4 arranged on the truss, the two front edge plates 4 are respectively located at an inlet and an outlet of the escalator 1, and the pressure detection unit 5 is arranged at the bottom of the front edge plates 4.
In order to make the data detected by the pressure detecting unit 5 more accurate, in one embodiment, when a plurality of loads sequentially enter or leave the escalator 1, the weight of the load is detected by the pressure detecting unit 5, and after a preset period, the weight of the next load is detected by the pressure detecting unit 5. In a preset period, the pressure detecting unit 5 detects that the peak value of the data is the weight of the load. The preset period ranges from 0.5s to 1s, and the preset period is set according to the advancing speed of the load.
The way of counting the number of loads on the escalator 1, with reference to one of the embodiments, the weight of the payload entering the escalator 1 is P1, and the weight of the load leaving the escalator 1 is P2; the number of loads in the current escalator 1 is calculated in the following manner: n is (P1-P2)/(600N-800N). Wherein: the units of P1 and P2 are N, and N is the number of theoretical calculators (decimal rounding).
In this embodiment, the escalator 1 further includes an early warning unit 8 electrically connected to the control unit 7, and the manner of controlling the escalator 1 according to the escalator load includes: when the total amount of the escalator load (such as the total weight of the load or the total amount of the load) reaches a preset value, the early warning unit 8 receives a signal from the control unit 7 and carries out alarm prompt. The alarm unit may be a voice prompt module, or send an alarm signal (e.g., a short message, a telephone call, a mail, etc.) to a security administrator.
The image detection units 6 are specifically arranged, in reference to one embodiment, in two groups, and the two groups of image detection units 6 are respectively arranged at the entrance and the exit of the escalator 1, and are used for respectively detecting the payload entering the escalator 1 and the payload leaving the escalator 1. In order to further increase the detection accuracy of the load moving into and out of the escalator 1, each group of image detection units 6 includes two image detection elements, which are arranged in sequence along the width of the escalator 1 and are disposed opposite to the handrails 2.
In order to mount the image detection unit 6 to the escalator 1, referring to one embodiment, the escalator 1 further includes a plurality of bases 11, each of the bases 11 includes a support portion 12 and a mounting portion 13, the support portion 12 is mounted to the truss by welding or bolts, the mounting portion 13 is mounted to an end of the support portion 12 facing away from the truss and disposed opposite to the handrail 2 of the escalator 1, and the image detection element is mounted to the mounting portion 13.
The handrail 2 has a handrail belt, which needs to be turned when running to the end of the handrail 2, and thus turning sections 3 are formed at both ends of the handrail 2. In order to avoid affecting the use of the handrail by passengers, in one embodiment, the extension path of the mounting portion 13 is similar to the extension path of the turning section 3, so that the end of the mounting portion 13 facing away from the supporting portion 12 is adjacent to the handrail 2. In this embodiment, since the handrail belt on the handrail 2 needs to run, the extension path of the turning section 3 is arranged in an arc shape, and the extension path of the corresponding turning section 3 is also arranged in an arc shape.
In this embodiment, the number of the bases 11 at the entrance and the exit of the escalator 1 is two, and each image sensing element is mounted on the corresponding base 11.
In this embodiment, the escalator 1 further includes a display module 14 (e.g., a display screen), the display module 14 is electrically connected to the control unit 7 and the early warning unit 8, respectively, for displaying the escalator load and the alarm prompt, and a security manager can check the current escalator load and the alarm prompt through the display screen and pre-judge the time for maintaining the escalator 1. In the present embodiment, the display module 14 is attached to the attachment portion 13.
In order to be able to define the path of the load into the escalator 1, with reference to one of the embodiments, the escalator system further comprises at least two sets of uprights, each set of uprights being arranged in succession at the entrance of the escalator 1 in the width direction of the escalator 1; in the width direction of the escalator 1, a passage through which only one load passes is formed between two adjacent sets of the pillars. Wherein, the upright post can be fixed on the truss by welding or bolts.
In the embodiment, along the width direction of the escalator, the distance between two adjacent upright posts is less than 700mm, and at the moment, only one person can pass through the channel between the two adjacent upright posts. Preferably, the distance between two adjacent upright posts is less than 550 mm.
In another embodiment, as shown in fig. 2, the way of controlling the escalator 1 according to the escalator load comprises: the control unit 7 correspondingly adjusts the rotating speed of the escalator main machine 10 according to the escalator load, and the energy consumption of the escalator 1 can be reduced by adjusting the rotating speed of the escalator main machine 10. The escalator 1 further comprises a frequency converter, the frequency converter is electrically connected with the escalator main machine 10 and the control unit 7 respectively, and the control unit 7 adjusts the rotating speed of the escalator main machine 10 through the frequency converter.
In this embodiment, the rotation speed of the escalator main machine 10 includes three working conditions according to the relative high and low, which are 0 speed, low speed or high speed respectively. Here, low speed and high speed are relative concepts, for example, high speed may be the speed of an escalator carrying passengers. In order to detect the rotation speed of the escalator main machine 10, referring to one embodiment, the escalator 1 further includes a rotation speed detection unit 9, the rotation speed detection unit 9 is electrically connected to the control unit 7, the rotation speed detection unit 9 is used for acquiring a rotation speed signal of the escalator main machine 10, and the control unit 7 acquires the rotation speed signal and adjusts the rotation speed of the escalator main machine 10 through the frequency converter. In the present embodiment, the rotation speed detecting means 9 is a conventional one.
Wherein, the rotating speed detection unit 9 is arranged on the truss and is opposite to the main shaft of the escalator main machine 10. In order to make the detection of the rotation speed of the escalator main machine 10 more accurate, referring to one embodiment, the outer peripheral side of the main shaft is provided with a detection area arranged opposite to the rotation speed detection unit 9, and the detection area can improve the detection precision of the rotation speed detection unit 9. In the present embodiment, the detection area includes a plurality of marks arranged on the outer side of the spindle at intervals in the circumferential direction of the spindle, and the marks may be protrusions or grooves provided on the outer circumferential side of the spindle.
When the escalator is in operation, according to the escalator load, under the condition that the escalator keeps a high-speed working condition, when the escalator load changes, the voltage of the escalator main machine 10 is correspondingly increased or reduced, so that the rotating speed of the escalator main machine 10 approaches to the rotating speed before the load changes, the service efficiency of the escalator main machine 10 can be improved, and the energy-saving effect of an escalator system is achieved. In this embodiment, the escalator main machine 10 is under a high-speed working condition: when the load of the escalator is changed from small to large, the voltage of the escalator main machine 10 is correspondingly increased; when the load of the escalator is changed from large to small, the voltage of the escalator main machine 10 is correspondingly reduced.
Specifically, the escalator load is fully loaded, and the voltage of the escalator main machine 10 is 380V at this time. When the escalator load is not fully loaded, the escalator voltage is 360V-375V at the moment. When the load of the escalator is larger than the full load, the voltage of the escalator is 385V-390V at the moment.
When the load of the escalator changes, the rotating speed of the escalator main machine 10 is further adjusted according to the current rotating speed of the escalator main machine 10 so as to switch to the corresponding working condition.
Specifically, when the escalator main machine 10 is in the working condition of 0 speed or in the low-speed working condition, and when the escalator load is increased from 0 and reaches a load preset value (the load preset value is the preset load quantity or load weight, and the load preset value is set according to the actual working requirement of the escalator), the escalator main machine 10 is switched to the high-speed working condition in a frequency conversion mode.
When a load enters the escalator, if the escalator main machine 10 is in a 0-speed working condition or a low-speed working condition at the moment, the escalator main machine 10 is switched to a high-speed working condition in a frequency conversion mode; if the escalator main machine 10 is in a high-speed working condition at the moment, the escalator main machine 10 maintains the current working condition.
Further, under the high-speed working condition of the escalator main machine 10, when the escalator load is 0, after the escalator main machine 10 maintains the current working condition for the preset time, the escalator main machine 10 is switched to the low-speed working condition in a frequency conversion mode. Wherein the preset time is set according to the length of the escalator and/or the rotating speed of the escalator main machine 10.
Further, under the low-speed working condition of the escalator, when the load of the escalator is 0, the escalator main machine 10 maintains the current working condition for the preset time, and then the escalator main machine 10 is switched to the 0-speed working condition in a frequency conversion mode.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.
The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.
Claims (10)
1. An escalator, comprising:
the pressure detection units are arranged at the inlet and the outlet of the escalator respectively and used for detecting the weight of a load entering the escalator and the weight of a load leaving the escalator;
an image detection unit to detect a payload entering an escalator;
the control unit is electrically connected with the pressure detection unit and the image detection unit respectively, determines the escalator load according to the weight of the effective load entering the escalator and the weight of the load leaving the escalator, and controls the escalator correspondingly according to the escalator load.
2. The escalator of claim 1, wherein the weight of a load is detected by the pressure detecting unit when a plurality of loads sequentially enter or exit the escalator, and the weight of the next load is detected by the pressure detecting unit after a preset period.
3. Escalator according to claim 2, characterized in that the preset period ranges from 0.5s to 1 s.
4. Escalator as claimed in claim 1, characterized in that the weight of the payload entering the escalator is P1, and the weight of the load leaving the escalator is P2;
the number of loads in the escalator is currently calculated in the following manner: n is (P1-P2)/(600N-800N).
5. The escalator according to claim 1 or 4, further comprising a warning unit in circuit connection with said control unit, wherein the manner of controlling said escalator in response to said escalator load comprises:
and when the total amount of the escalator load reaches a preset value, the early warning unit receives a signal from the control unit and carries out alarm prompt.
6. The escalator of claim 1, wherein said image sensing units are in two groups, two groups of image sensing units being disposed at the entrance and exit of said escalator, respectively, for sensing a payload entering the escalator and a payload exiting the escalator, respectively.
7. The escalator of claim 1, wherein the escalator system further comprises at least two vertical columns, each vertical column group being sequentially disposed at an entrance of the escalator in a width direction of the escalator;
and a channel for only one load to pass through is formed between two adjacent groups of upright posts along the width direction of the escalator.
8. Escalator according to claim 1, characterized in that the manner of controlling the escalator accordingly as a function of the escalator load comprises:
and the control unit correspondingly adjusts the rotating speed of the escalator main machine according to the escalator load.
9. The escalator as claimed in claim 8, wherein the rotation speed of the escalator main machine includes three working conditions according to relative high and low, which are 0 speed, low speed or high speed;
when the escalator main machine is under a high-speed working condition and the escalator load changes, the voltage of the escalator main machine is correspondingly increased or reduced, so that the rotating speed of the escalator main machine approaches to the rotating speed before the load changes.
10. The escalator according to claim 9, wherein the escalator main machine is switched to a high-speed working condition in a frequency conversion manner when the escalator load is increased from 0 and reaches a load preset value under the working condition of 0-speed working condition or low-speed working condition;
and/or when the escalator main machine is under a high-speed working condition and the escalator load is 0, the escalator main machine is switched to a low-speed working condition in a frequency conversion mode after maintaining the current working condition for a preset time;
and/or when the escalator is in a low-speed working condition and the escalator load is 0, the escalator main machine is switched to the 0-speed working condition in a frequency conversion mode after maintaining the current working condition for a preset time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110292570.2A CN113148819A (en) | 2021-03-18 | 2021-03-18 | Automatic staircase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110292570.2A CN113148819A (en) | 2021-03-18 | 2021-03-18 | Automatic staircase |
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| Publication Number | Publication Date |
|---|---|
| CN113148819A true CN113148819A (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110292570.2A Withdrawn CN113148819A (en) | 2021-03-18 | 2021-03-18 | Automatic staircase |
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| CN (1) | CN113148819A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005200177A (en) * | 2004-01-16 | 2005-07-28 | Mitsubishi Electric Corp | Method and device for operating passenger conveyor |
| JP2008081271A (en) * | 2006-09-28 | 2008-04-10 | Mitsubishi Precision Co Ltd | Person backflow detecting system |
| JP2010189097A (en) * | 2009-02-17 | 2010-09-02 | Mitsubishi Electric Corp | Device for operation control of passenger conveyor |
| JP2011011901A (en) * | 2009-07-06 | 2011-01-20 | Mitsubishi Electric Building Techno Service Co Ltd | Safety device of escalator |
| CN107662869A (en) * | 2016-07-29 | 2018-02-06 | 奥的斯电梯公司 | Big data analysis process system and method for passenger conveyor |
| CN112299218A (en) * | 2020-11-24 | 2021-02-02 | 杭州西奥电梯有限公司 | Escalator control method and escalator system |
-
2021
- 2021-03-18 CN CN202110292570.2A patent/CN113148819A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005200177A (en) * | 2004-01-16 | 2005-07-28 | Mitsubishi Electric Corp | Method and device for operating passenger conveyor |
| JP2008081271A (en) * | 2006-09-28 | 2008-04-10 | Mitsubishi Precision Co Ltd | Person backflow detecting system |
| JP2010189097A (en) * | 2009-02-17 | 2010-09-02 | Mitsubishi Electric Corp | Device for operation control of passenger conveyor |
| JP2011011901A (en) * | 2009-07-06 | 2011-01-20 | Mitsubishi Electric Building Techno Service Co Ltd | Safety device of escalator |
| CN107662869A (en) * | 2016-07-29 | 2018-02-06 | 奥的斯电梯公司 | Big data analysis process system and method for passenger conveyor |
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Application publication date: 20210723 |