CN110422744B - Method for displaying load curve of escalator or moving sidewalk - Google Patents
Method for displaying load curve of escalator or moving sidewalk Download PDFInfo
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- CN110422744B CN110422744B CN201910752071.XA CN201910752071A CN110422744B CN 110422744 B CN110422744 B CN 110422744B CN 201910752071 A CN201910752071 A CN 201910752071A CN 110422744 B CN110422744 B CN 110422744B
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- escalator
- frequency converter
- load
- moving
- air conditioner
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B25/00—Control of escalators or moving walkways
- B66B25/003—Methods or algorithms therefor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/06—Arrangements for measuring electric power or power factor by measuring current and voltage
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Handcart (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses a method for displaying a load curve of an escalator or a moving sidewalk, which is characterized by comprising the following steps of: (1) the frequency converter is sequentially connected with the first operating contactor and the second operating contactor and is finally connected with the host; (2) the first operating contactor and the second operating contactor are attracted, and the voltage and the current output by the frequency converter are transmitted to the host to form a loop to enable the host to operate; (3) when the frequency converter is started each time, the voltage and current values output by the frequency converter are converted into load values PAir conditionerAnd stored; (4) the frequency converter converts the output voltage and current value into load value P at intervalsGeneral assemblyAnd stored; (5) the hand-held operator is connected with the frequency converter and displays a load rate curve chart of the escalator or the moving walkway according to time and load rate. According to the invention, on the premise of not additionally adding a device and not influencing any safe operation, the load curve graph can be conveniently checked by using the hand-held manipulator, so that the high and low peaks of the pedestrian flow can be conveniently counted.
Description
Technical Field
The invention relates to the technical field of people flow monitoring of escalators or moving sidewalks, in particular to a method for displaying a load curve of an escalator or a moving sidewalk.
Background
With the development of science and technology, the acquisition of escalator operation state data is widely applied. The collected data are correctly utilized, and statistics and analysis can be effectively carried out on the operation and safety states of the escalator. Aiming at large-scale shopping malls or subway exits, customers pay attention to peak periods of people flow in a certain time or peak periods of people flow in holidays, so that certain preventive measures such as shunting can be taken to properly reduce the running dragging pressure of escalators or moving sidewalks. However, at present, the corresponding function is realized by additionally installing external devices such as a sensor or a camera, and the like, so that the additional cost is increased.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a method for displaying a load curve of an escalator or a moving sidewalk, which is characterized in that on the premise of not additionally adding a device and not influencing any safe operation, a load value is converted into a load value through calculation and stored directly according to a voltage current value output by a frequency converter, and then a load curve graph can be conveniently checked by holding an operator with hands, so that the high and low peaks of the pedestrian flow can be conveniently counted.
In order to solve the technical problems, the invention adopts the following technical scheme: the invention discloses a method for displaying a load curve of an escalator or a moving sidewalk, which is characterized by comprising the following steps:
(1) the input power supply of a user inputs U \ V \ W to the frequency converter, then the output end of the frequency converter is sequentially connected with the first operation contactor and the second operation contactor, and finally connected with the host to supply power to the host and drive the escalator or the moving walk through the host;
(2) after the frequency converter receives an instruction signal of up-down operation, the first operation contactor and the second operation contactor are both attracted, and voltage and current output by the frequency converter are transmitted to the host machine through the first operation contactor and the second operation contactor in sequence to form a loop so that the host machine operates and drive the escalator or the moving walk to operate;
(3) within 3-4 seconds of starting the escalator or the moving sidewalk each time, the escalator or the moving sidewalk is in a no-load state, and the voltage and current value output by the frequency converter is converted into a load value P in the no-load state through calculationAir conditionerAnd automatically setting the current load value PAir conditionerStoring the data;
(4) when the escalator or the moving sidewalk is in a load state, the frequency converter converts the voltage and current value output by the frequency converter into a load value P of the load state by calculation at intervalsGeneral assemblyAnd automatically setting the current load value PGeneral assemblyStoring the data;
(5) and the hand-held operator is connected with the frequency converter, when the frequency converter receives a request instruction sent by the hand-held operator, the frequency converter transmits all the stored data to the hand-held operator, and then the hand-held operator displays a load rate curve chart of the escalator or the moving walk according to time and load rate.
Preferably, in the step (1), the main machine adopts a three-phase asynchronous motor, and the model is YFD200L 3-6.
Preferably, in the step (1), the first operating contactor and the second operating contactor are both LC1D 32.
Preferably, in the step (3), the load value P when the escalator or moving walkway is emptyAir conditioner=UAir conditioner*IAir conditioner。
Preferably, in the step (4), the load value P when the escalator or moving sidewalk is loadedGeneral assembly=UGeneral assembly*IGeneral assembly-PAir conditioner。
Preferably, in the step (5), the handheld operator is connected with the frequency converter through a USB or a Bluetooth.
The invention has the beneficial effects that: according to the invention, on the premise of not adding extra devices and not influencing any safe operation, the load value is converted into the load value by calculation directly according to the voltage current value output by the frequency converter, the load value is stored in the frequency converter at fixed time intervals, when the load value needs to be checked, the frequency converter is connected by the handheld operator and a request is sent out, so that the load curve diagram of the escalator or the moving sidewalk can be conveniently checked, and the method plays a good role in counting the peak of the pedestrian flow.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic connection diagram of a device for displaying a load curve of an escalator or a moving sidewalk according to the present invention.
Fig. 2 is a graph of the load factor in fig. 1.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description.
The method for displaying the load curve of the escalator or the moving walk, disclosed by the invention, comprises the following concrete implementation steps as shown in figure 1:
the method comprises the following steps: the input power supply of a user inputs U \ V \ W to the frequency converter, then the output end of the frequency converter is sequentially connected with the first operation contactor and the second operation contactor, and finally connected with the host to supply power to the host and drive the escalator or the moving walk through the host;
in the steps, the operation of the escalator or the moving sidewalk is driven by the operation of the host machine, and the host machine is used as the only power source of the whole escalator or the moving sidewalk and can directly feed back the load condition of the escalator or the moving sidewalk; wherein the content of the first and second substances,
the host machine adopts a three-phase asynchronous motor, and the model number of the three-phase asynchronous motor is YFD200L 3-6;
the frequency converter is KLE-MCU-02, and is provided with a current collection module; the output current of the frequency converter can be recorded, and the current output voltage and current of the frequency converter can be recorded and stored at intervals, and the voltage and current value can directly reflect the load change of the escalator or the moving walk through calculation.
The first operating contactor and the second operating contactor are both LC1D 32.
Step two: after the frequency converter receives an instruction signal of up-down operation, the first operation contactor and the second operation contactor are attracted and conducted, and voltage and current output by the frequency converter are transmitted to the host machine through the first operation contactor and the second operation contactor in sequence to form a loop so that the host machine operates and drive the escalator or the moving walk to operate; the frequency converter can obtain the current on the loop through the current acquisition module.
Step three: within 3-4 seconds of starting the escalator or moving walk each time, the escalator or moving walk is in a no-load state and changes into a no-load stateThe frequency converter converts the voltage and current value output by the frequency converter into a load value P in a no-load state through calculationAir conditionerAnd automatically setting the current load value PAir conditionerStoring the data;
in the steps, when no load exists on the steps of the escalator or the moving sidewalk, a fixed step is used as a load for the main machine, so that the load value in the no-load state is calculated within 3-4 seconds of starting each time; load value P of escalator or moving sidewalk in no-load stateAir conditioner=UAir conditioner*IAir conditioner。
Step four: when the escalator or the moving sidewalk is in a load state, the frequency converter converts the voltage and current value output by the frequency converter into a load value P of the load state by calculation at intervalsGeneral assemblyAnd automatically setting the current load value PGeneral assemblyStoring the data;
in the above steps, the load value under the load state is calculated every half hour or one hour; load value P when escalator or moving sidewalk is loadedGeneral assembly=UGeneral assembly*IGeneral assembly-PAir conditionerAnd automatically setting the current load value PGeneral assemblyStored in the RAM of the transducer and retained, the latest stored data will overwrite the oldest data.
Step five: the hand-held manipulator is connected with the frequency converter, when the frequency converter receives a request command sent by the hand-held manipulator, the frequency converter transmits all the stored data to the hand-held manipulator, and then the hand-held manipulator displays a load rate curve chart of the escalator or the moving walkway as shown in fig. 2 according to time and load rate.
In the above steps, the hand-held operator is connected with the frequency converter through USB or Bluetooth.
The invention has the beneficial effects that: according to the invention, on the premise of not adding extra devices and not influencing any safe operation, the load value is converted into the load value by calculation directly according to the voltage current value output by the frequency converter, the load value is stored in the frequency converter at fixed time intervals, when the load value needs to be checked, the frequency converter is connected by the handheld operator and a request is sent out, so that the load curve diagram of the escalator or the moving sidewalk can be conveniently checked, and the method plays a good role in counting the peak of the pedestrian flow.
The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements made to the technical solutions of the present invention by those skilled in the art should fall into the protection scope of the present invention without departing from the design concept of the present invention, and the technical contents of the present invention as claimed are all described in the technical claims.
Claims (6)
1. A method for displaying a load curve of an escalator or a moving sidewalk is characterized by comprising the following steps:
(1) the input power supply of a user inputs U \ V \ W to the frequency converter, then the output end of the frequency converter is sequentially connected with the first operation contactor and the second operation contactor, and finally connected with the host to supply power to the host and drive the escalator or the moving walk through the host;
(2) after the frequency converter receives an instruction signal of up-down operation, the first operation contactor and the second operation contactor are both attracted, and voltage and current output by the frequency converter are transmitted to the host machine through the first operation contactor and the second operation contactor in sequence to form a loop so that the host machine operates and drive the escalator or the moving walk to operate;
(3) within 3-4 seconds of starting the escalator or the moving sidewalk each time, the escalator or the moving sidewalk is in a no-load state, and the voltage and current value output by the frequency converter is converted into a load value P in the no-load state through calculationAir conditionerAnd automatically setting the current load value PAir conditionerStoring the data;
(4) when the escalator or the moving sidewalk is in a load state, the frequency converter converts the voltage and current value output by the frequency converter into a load value P of the load state by calculation at intervalsGeneral assemblyAnd automatically setting the current load value PGeneral assemblyStoring the data;
(5) and the hand-held operator is connected with the frequency converter, when the frequency converter receives a request instruction sent by the hand-held operator, the frequency converter transmits all the stored data to the hand-held operator, and then the hand-held operator displays a load rate curve chart of the escalator or the moving walk according to time and load rate.
2. A method of displaying a load curve of an escalator or moving walkway as claimed in claim 1, wherein: in the step (1), the host machine adopts a three-phase asynchronous motor, and the model number of the three-phase asynchronous motor is YFD200L 3-6.
3. A method of displaying a load curve of an escalator or moving walkway as claimed in claim 1, wherein: in the step (1), the first operating contactor and the second operating contactor are both LC1D 32.
4. A method of displaying a load curve of an escalator or moving walkway as claimed in claim 1, wherein: in the step (3), the load value P of the escalator or the moving sidewalk when the escalator or the moving sidewalk is emptyAir conditioner=UAir conditioner*IAir conditioner。
5. A method of displaying a load curve of an escalator or moving walkway as claimed in claim 1, wherein: in the step (4), the load value P when the escalator or the moving pavement is loadedGeneral assembly=UGeneral assembly*IGeneral assembly-PAir conditioner。
6. A method of displaying a load curve of an escalator or moving walkway as claimed in claim 1, wherein: in the step (5), the handheld operator is connected with the frequency converter through USB or Bluetooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910752071.XA CN110422744B (en) | 2019-08-15 | 2019-08-15 | Method for displaying load curve of escalator or moving sidewalk |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910752071.XA CN110422744B (en) | 2019-08-15 | 2019-08-15 | Method for displaying load curve of escalator or moving sidewalk |
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| CN110422744A CN110422744A (en) | 2019-11-08 |
| CN110422744B true CN110422744B (en) | 2020-08-25 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392666A (en) * | 2001-06-15 | 2003-01-22 | 奥蒂斯电梯公司 | Realizing switch over from power source to frequency converter by phase correction for escalator |
| JP2011063403A (en) * | 2009-09-18 | 2011-03-31 | Mitsubishi Electric Corp | Overload preventive device of passenger conveyor |
| CN102234057A (en) * | 2010-05-07 | 2011-11-09 | 上海三菱电梯有限公司 | Control device for escalator and automatic sidewalk |
| CN102291081A (en) * | 2010-06-18 | 2011-12-21 | 北京茨浮电气有限公司 | Method for tracking dynamic load of frequency converter |
| CN102556824A (en) * | 2010-12-15 | 2012-07-11 | 上海三菱电梯有限公司 | Pedestrian loading rate detecting device for escalator and autowalk |
| JP2014152005A (en) * | 2013-02-08 | 2014-08-25 | Hitachi Ltd | Conveyor system for passenger |
-
2019
- 2019-08-15 CN CN201910752071.XA patent/CN110422744B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1392666A (en) * | 2001-06-15 | 2003-01-22 | 奥蒂斯电梯公司 | Realizing switch over from power source to frequency converter by phase correction for escalator |
| JP2011063403A (en) * | 2009-09-18 | 2011-03-31 | Mitsubishi Electric Corp | Overload preventive device of passenger conveyor |
| CN102234057A (en) * | 2010-05-07 | 2011-11-09 | 上海三菱电梯有限公司 | Control device for escalator and automatic sidewalk |
| CN102291081A (en) * | 2010-06-18 | 2011-12-21 | 北京茨浮电气有限公司 | Method for tracking dynamic load of frequency converter |
| CN102556824A (en) * | 2010-12-15 | 2012-07-11 | 上海三菱电梯有限公司 | Pedestrian loading rate detecting device for escalator and autowalk |
| JP2014152005A (en) * | 2013-02-08 | 2014-08-25 | Hitachi Ltd | Conveyor system for passenger |
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