CN111924694B - Escalator vibration signal detection and transmission system - Google Patents
Escalator vibration signal detection and transmission system Download PDFInfo
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- CN111924694B CN111924694B CN202011086543.1A CN202011086543A CN111924694B CN 111924694 B CN111924694 B CN 111924694B CN 202011086543 A CN202011086543 A CN 202011086543A CN 111924694 B CN111924694 B CN 111924694B
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
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Abstract
The invention relates to the technical field of escalator detection, in particular to an escalator vibration signal detection and transmission system, which comprises: the signal acquisition device comprises a fixed acquisition unit arranged on an inner rail of the elevator and a mobile acquisition unit arranged on a rolling wheel of the steps of the elevator, wherein the fixed acquisition unit is used for acquiring the vibration quantity of the fixed position of the inner rail, and the mobile acquisition unit is used for acquiring the vibration quantity of each step of the elevator; the wireless signal sending unit is arranged corresponding to the mobile acquisition unit and the fixed acquisition unit and is used for sending the vibration signals acquired by the mobile acquisition unit and the fixed acquisition unit; a wireless data receiving unit which receives the signal from the wireless signal transmitting unit; and the GPRS remote data transmitter transmits the signal to the remote control center through a GPRS network. According to the escalator vibration detection device, the fixed acquisition unit and the mobile acquisition unit are arranged, data are acquired for the analyzed basic waveform and other supplementary waveforms respectively, and the signals can be used for intelligently detecting the escalator vibration condition after being effectively transmitted.
Description
Technical Field
The invention relates to the technical field of escalator detection, in particular to an escalator vibration signal detection and transmission system.
Background
The staircase is as passenger's conveyer, and inevitable emergence vibration in its operation can not cause the influence to passenger's use when the vibration volume is in controllable range, but when the vibration surpassed certain range, then can influence passenger's riding comfort level lightly, then can bring the threat to passenger's personal safety seriously. At present, in order to ensure the using effect of the escalator, the escalator needs to be frequently inspected and maintained by maintainers, and the escalator maintenance cost is increased.
In view of the above problems, the present designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is engaged with the application of scholars to actively make research and innovation, so as to create a vibration signal detection and transmission system for escalators, which is more practical.
Disclosure of Invention
The invention provides a detection and transmission system for escalator vibration signals, thereby effectively solving the problems in the background art.
In order to achieve the purpose, the invention adopts the technical scheme that:
an escalator vibration signal detection transmission system, comprising:
the signal acquisition device comprises a fixed acquisition unit arranged on an inner rail of the escalator and a mobile acquisition unit arranged on a rolling wheel of a step of the escalator, wherein the fixed acquisition unit is used for acquiring the vibration quantity of the fixed position of the inner rail, and the mobile acquisition unit is used for acquiring the vibration quantity of each step of the escalator;
the wireless signal sending unit is arranged corresponding to the mobile acquisition unit and the fixed acquisition unit and is used for sending the vibration signals acquired by the mobile acquisition unit and the fixed acquisition unit;
a wireless data receiving unit which receives a signal from the wireless signal transmitting unit;
and the GPRS remote data transmitter transmits the signal to a remote control center through a GPRS network.
Further, the fixed acquisition unit comprises:
the first pressure sensing pieces are arranged on the supporting surface of the straight line section of the inner guide top, the top of each first pressure sensing piece is covered with a pressure bearing piece, and the first distance between every two adjacent pressure sensing pieces is equal to the first distance between every two adjacent rolling wheels;
the first pressure-voltage/current conversion unit is connected with the wireless signal sending unit and converts the pressure signal sensed by the first pressure sensing sheet into a voltage/current signal;
the length of the pressure bearing piece is 0.8-0.9 times of the first distance, and the first pressure sensing piece is located at the center of the length of the pressure bearing piece.
Further, the mobile acquisition unit comprises:
the second pressure induction sheet is arranged between the bearing seat body of the rolling wheel and the escalator step;
and the second pressure-voltage/current conversion unit is connected with the wireless signal sending unit and converts the pressure signal sensed by the second pressure sensing sheet into a voltage/current signal.
Further, the second pressure sensing piece is horizontally arranged or vertically arranged.
Further, still include the gyro wheel recognition unit, the gyro wheel recognition unit includes:
the RFID tags are correspondingly arranged with the rolling wheels one by one;
and the reader is arranged at a fixed position on the escalator, is used for reading the content of the RFID tag, and is connected with the wireless signal sending unit.
Further, the method for the remote control center to determine the acquisition time period is as follows:
determining a detection section on the inner barrier, wherein at least two first pressure sensing pieces are included in the detection section;
the escalator working time in a working day is taken as a detection unit, and a waveform diagram of voltage/current of each first pressure induction sheet in the detection section along with time change when the rolling wheels set in at least two detection units roll is detected;
calculating the average value of the voltage/current value of each wave crest in the oscillogram when the set rolling wheel rolls from the detection road section each time;
and establishing a basic waveform by taking the average value as a vertical coordinate and a set time interval of the rolling wheel reaching the detection road section as a horizontal coordinate, and selecting an acquisition time period according to the basic waveform.
Further, the acquisition time period includes an intersection of time ranges of the base waveforms of the respective detection units above a set average value.
Further, the acquisition time period includes an intersection of time ranges of the basic waveforms of the detection units below a set average value
Further, in the acquisition time period, on the basis of any fixed acquisition unit, a waveform diagram of voltage/current changes along with time of the first pressure induction sheet in a period of rolling of all rolling wheels of the escalator is established, and the waveform diagram is used as a basis for judging the vibration quantity of the rolling wheels.
Further, in the acquisition time period, with any rolling wheel as a reference, a waveform diagram of voltage/current changes along with time after all the first pressure sensing pieces of the escalator are rolled by the same rolling wheel is established, and the waveform diagram is used as a vibration quantity judgment basis in the range where the first pressure sensing pieces are located.
Through the technical scheme, the invention has the beneficial effects that:
according to the escalator vibration detection device, the fixed acquisition unit and the mobile acquisition unit are arranged, the vibration quantity of a fixed position and the vibration quantity of each escalator step can be acquired, and the signals are effectively transmitted to the remote control center through the wireless signal sending unit, the wireless data receiving unit and the GPRS remote data transmitter, so that the data can be used as a data source for judging the vibration condition of the escalator, the improvement of maintenance cost caused by frequent inspection and maintenance of the escalator by maintainers can be omitted through remote analysis, and the escalator vibration detection device is more accurate and objective compared with a manual detection mode.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a frame diagram of an escalator vibration signal detection and transmission system;
FIG. 2 is a schematic view of an arrangement of a pressure-bearing plate and a first pressure-sensing plate;
FIG. 3 is a frame diagram of a stationary acquisition unit;
FIG. 4 is a block diagram of a mobile acquisition unit;
FIG. 5 is a schematic view of the relative position of the steps of the escalator and the inner rail;
FIG. 6 is a schematic view of a first arrangement of a second pressure-sensitive strip;
FIG. 7 is a schematic view of a second arrangement of a second pressure-sensitive strip;
fig. 8 is a waveform diagram of voltage/current changes with time of each first pressure-sensitive strip in the detection road section when the set rolling wheel rolls when five first pressure-sensitive strips are arranged in the detection road section;
FIG. 9 is a waveform diagram consisting of the respective average values corresponding to FIG. 8;
FIG. 10 is a schematic illustration of determining an acquisition time period from a base waveform;
fig. 11 is a waveform diagram of a first pressure sensing sheet corresponding to each rolling wheel of a fixed acquisition unit after rolling;
FIG. 12 is an enlarged view of a portion of FIG. 2 at A;
reference numerals: 1. a signal acquisition device; 11. a fixed acquisition unit; 111. a first pressure sensing sheet; 112. a first pressure-voltage/current conversion unit; 113. a pressure bearing sheet; 12. a mobile acquisition unit; 121. a second pressure sensing piece; 122. a second pressure-voltage/current conversion unit; 2. inner blocking; 3. a wireless signal transmitting unit; 4. a wireless data receiving unit; 5. a GPRS remote data transmitter; 6. a remote control center; 7. a rolling wheel; 8. an escalator step; 9. a bearing housing; 10. and (7) briquetting.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.
As shown in fig. 1, an escalator vibration signal detection and transmission system includes: the signal acquisition device 1 comprises a fixed acquisition unit 11 arranged on the inner rail 2 of the escalator and a movable acquisition unit 12 arranged on the rolling wheel 7 of the stair 8 of the escalator, wherein the fixed acquisition unit 11 is used for acquiring the vibration quantity of the fixed position of the inner rail 2, and the movable acquisition unit 12 is used for acquiring the vibration quantity of each stair 8 of the escalator; the wireless signal sending unit 3 is arranged corresponding to the mobile acquisition unit 12 and the fixed acquisition unit 11 and is used for sending vibration signals acquired by the mobile acquisition unit 12 and the fixed acquisition unit 11; a wireless data receiving unit 4 that receives a signal from the wireless signal transmitting unit 3; and a GPRS remote data transmitter 5 for transmitting the signal to a remote control center 6 through a GPRS network.
According to the escalator vibration detection device, the fixed acquisition unit 11 and the mobile acquisition unit 12 are arranged, the vibration quantity of a fixed position and the vibration quantity of each escalator step 8 can be acquired, and the signals are effectively transmitted to the remote control center 6 through the wireless signal sending unit 3, the wireless data receiving unit 4 and the GPRS remote data transmitter 5, so that the data can be used as a data source for judging the vibration condition of the escalator, the improvement of maintenance cost caused by frequent inspection and maintenance of the escalator by maintainers can be omitted through remote analysis, and the escalator vibration detection device is more accurate and objective compared with a manual detection mode.
During use of the escalator, there may be several situations for a certain escalator step 8:
the first condition is as follows: no person takes the vehicle;
case two: the people stably ride:
case three: people pass through the device;
for the first and second cases, the stress condition of the escalator step 8 is stable, and for the third case, the stress condition of the escalator step 8 is changed, and the direction, speed, degree and the like of the change are all difficult to predict, and after the three cases are combined, the stress condition of the escalator step 8 is non-uniform and unpredictable, so that on one hand, the detection precision is affected, on the other hand, the service life of the fixed acquisition unit 11 is also reduced, in order to overcome the above problems, as the optimization of the above embodiment, the setting mode of the fixed acquisition unit 11 of the straight-line section of the escalator is optimized, as shown in fig. 2 and 3, the fixed acquisition unit 11 includes: the first pressure sensing pieces 111 are arranged on the supporting surface of the straight line section at the top of the inner rail 2, the top of the first pressure sensing pieces is covered with the pressure bearing pieces 113, and the first distance between every two adjacent pressure sensing pieces is equal to the first distance between every two adjacent rolling wheels 7; the first pressure-voltage/current conversion unit 112 is connected with the wireless signal transmission unit 3, and converts the pressure signal sensed by the first pressure sensing sheet 111 into a voltage/current signal; the length of the pressure-bearing plate 113 is 0.8 to 0.9 times of the first distance, and the first pressure-sensing plate 111 is located at the center of the length of the pressure-bearing plate 113.
Wherein, the first distance is D in fig. 2, the first distance D between two adjacent first pressure sensing sheets 111 is controlled to be equal to the first distance D between two adjacent rolling wheels 7, so that only one rolling wheel 7 acts on the first pressure sensing sheet 111 at each time, the diversity of the stress of the first pressure sensing sheet 111 is reduced, and thus the acquired data is more objective, and through the arrangement of the pressure bearing sheet 113, the range of the pressure sensed by each first pressure sensing sheet 111 is increased, so that on one hand, the smoothness of the pressure bearing is increased, on the other hand, the value can be taken in a non-uniform pressure bearing mode within a certain range, and various conditions such as the movement of people with different weights in different directions at different speeds can be taken into consideration, and the value taking mode is more accurate relative to the specific position.
In order to ensure the technical effects, the length of the pressure-bearing sheet 113 needs to be controlled not to be too short easily, when the rolling wheel 7 starts to press the pressure-bearing sheet from one end thereof, under the condition of no load, the pressure-sensing sheet can obtain the maximum pressure value when the rolling wheel 7 rolls from the top thereof, the pressure values on two sides of the maximum value are reduced in a smooth trend, but when an uncertain load condition exists, the position of the maximum pressure value is most likely to deviate from the setting position of the pressure-sensing sheet, and in the later data selection process, specific acquisition descriptions are made.
As a preferable example of the above embodiment, as shown in fig. 4 to 7, the mobile collecting unit 12 includes: the second pressure induction sheet 121 is arranged between the bearing seat body 9 of the rolling wheel 7 and the escalator step 8; the second pressure-voltage-current converting unit 122 is connected to the wireless signal transmitting unit 3, and converts the pressure signal sensed by the second pressure sensing piece 121 into a voltage/current signal.
The second pressure sensing pieces 121 are provided to detect the vibration amount of each rolling wheel 7, the bearing housing 9 and the rolling wheels 7 form a unit, the escalator step 8 is used as a unit, and the second pressure sensing pieces 121 are located between the two, so that the vibration of the escalator step 8 caused by the riding condition of people can be sensed, and the vibration of the rolling wheels 7 caused by the change of the working environment of the rolling wheels 7 can be sensed.
Wherein, the direction of vibration can be selected according to actual needs:
referring to fig. 6, the second pressure-sensitive strip 121 is horizontally disposed to collect longitudinal vibration, referring to fig. 7, the second pressure-sensitive strip 121 is vertically disposed to collect lateral vibration, although the above two methods only provide two more conventional methods, and when the second pressure-sensitive strip 121 is disposed at any angle between the horizontal direction and the vertical direction, it is also within the protection scope of the present invention to simultaneously detect horizontal and vertical vibration, in this case, it is preferable that the direction of the second pressure-sensitive strip 121 is disposed at an angle of 45 ° with respect to the horizontal direction, so that the conversion between the horizontal vibration and the vertical vibration is more convenient.
In the process of detecting the vibration quantity of the escalator steps 8, in order to distinguish different escalator steps 8, the preferred scheme further comprises a roller identification unit, and the roller identification unit comprises: the RFID tags are correspondingly arranged with the rolling wheels 7 one by one; and the reader is arranged at a fixed position on the escalator, is used for reading the content of the RFID label, and is connected with the wireless signal transmitting unit 3.
Through the arrangement of the reader, each rolling wheel 7 can obtain one-to-one confirmation of identity, so that the subsequently acquired data have pertinence.
The escalator is different from a box type escalator in operation mode, the escalator is generally in a continuous operation state in an operation time period, although a control mode of reducing the operation speed when no person takes exists in part of the escalator for the purpose of saving energy, the speed is not completely reduced to zero, and in a longer operation time, how to determine a more appropriate data acquisition time period is crucial to a final escalator detection result, as a preferred method of the above embodiment, the method of the remote control center 6 for determining the acquisition time period is as follows:
determining a detection road section on the inner fence 2, wherein the detection road section at least comprises two first pressure sensing pieces 111; the time of the escalator working in the working day is taken as a detection unit, and at least two detection units detect the waveform diagram of the voltage/current of each first pressure induction sheet 111 changing along with the time when the set rolling wheel 7 rolls; calculating the average value of the voltage/current value of each wave crest in the oscillogram when the set rolling wheel 7 rolls from the detection road section each time; and establishing a basic waveform by taking the average value as a vertical coordinate and a set time interval of the rolling wheel 7 reaching the detection road section as a horizontal coordinate, and selecting an acquisition time period according to the basic waveform.
The detection section is used for judging the human flow, so that the straight line section of the escalator is selected, as shown in fig. 8, in the embodiment, five first pressure sensing pieces 111 are arranged on the detection section, and the escalator is selected from 10: 00-21: 00, the detecting unit is 10: 00-21: 00, and at least 10: 00-21: 00, the identity of the set rolling wheel 7 can be determined by the roller wheel identification unit, in the detection unit, the set rolling wheel 7 will pass through each first pressure sensing sheet 111 in the detection section in a reciprocating way, so that each first pressure sensing sheet 111 obtains its own voltage/current waveform diagram during each cycle, in view of the analysis of the stress condition of the escalator, in the present preferred scheme, the peak values of a plurality of waveform diagrams are averaged in each cycle, as shown in fig. 8, taking three cycles as an example, no person takes the escalator in the first cycle, the stress of each first pressure sensing sheet 111 of the escalator is smooth and transited between F1 and F2, taking a person stably stands on the escalator in the second cycle as an example, the waveform diagram needs to be moved up on the basis of the waveform diagram in the first cycle, wherein F2 correspondingly moves up to F3, returns to no load in the third cycle, and forms the waveform diagram as shown in FIG. 9 correspondingly in the process of the cycle; in the above embodiment, the stress fluctuation condition of the whole escalator in the detection unit is shown on the premise that the escalator moves at a constant speed, and the compensation for the uneven stress of the escalator is completed in the above manner, so that the escalator has higher accuracy.
The base waveforms within the plurality of detection cells are considered together to determine an appropriate acquisition time period. Specifically, as shown in fig. 10, taking two basic waveforms as an example, the acquisition time period includes an intersection of time ranges of the basic waveforms of the detection units above a set average value, such as times between T1-T2 in the figure, and the time ranges represent time periods in which the flow of people is relatively concentrated; or, the collection time period includes an intersection of time ranges of the basic waveforms of the detection units below the set average value, and this time period represents a time period in which the human flow rate is relatively rare.
The data sample range under different requirements can be obtained through the selection of the time range, and the time range is selected to determine the time period of the basically unmanned riding and the stable riding so as to carry out accurate detection. The acquisition time periods of the escalators on different occasions are different inevitably, and the time periods are completely different by taking hotels, shopping malls and office places as examples.
As a preference of the above embodiment, in the collecting time period, with any fixed collecting unit 11 as a reference, a waveform diagram of the voltage/current change with time of the first pressure sensing sheet 111 in a period in which all the rolling wheels 7 of the escalator roll is established as a basis for judging the vibration quantity of the rolling wheels 7.
As shown in fig. 11, taking an escalator with 11 rolling wheels 7 as an example, after each rolling wheel 7 is rolled, for one fixed acquisition unit 11, the waveform diagram of the corresponding first pressure sensing sheet 111 is as shown in the figure, in view of the above-mentioned embodiment, the time period in which there is substantially no passenger riding and there is stable passenger riding has been determined, therefore, when the vibration amount of the rolling wheel 7 is stable, each rolling wheel 7 makes the waveform diagram of the first pressure sensing sheet 111 set to be stable, and when the waviness of individual sections in the waveform diagram fluctuates, it is inevitable that the vibration amount of the rolling wheel 7 corresponding to rolling exceeds the standard, but it is necessary to further judge according to the fluctuation range, and of course, the accuracy of stable determination can be further improved in a multi-cycle manner.
In the acquisition time period, any rolling wheel 7 is used as a reference, a waveform diagram of voltage/current changes along with time after all the first pressure sensing pieces 111 of the escalator are rolled by the same rolling wheel 7 is established, the waveform diagram is used as a vibration quantity judgment basis in the range where the first pressure sensing pieces 111 are located, and the judgment basis is similar to that of the embodiment, and only the judgment reference is changed in the embodiment.
As shown in fig. 12, in the process of installing the pressure-bearing plate 113, it is preferable that the pressing blocks 10 are arranged on the inner rail 2 at intervals to press the edge of the pressure-bearing plate 113, but it is necessary to ensure that the pressing blocks 10 and the top of the pressure-bearing plate 113 have smooth surfaces, so as to ensure the stability of the movement of the rolling wheel 7, and the problem of local stress concentration of the pressure-bearing plate 113 caused by the use of the connecting member can be avoided by the pressing mode, so that the sensing plate can have a more sensitive response speed when the rolling wheel 7 rolls thereon.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The escalator vibration signal detection and transmission system is characterized by comprising:
the signal acquisition device comprises a mobile acquisition unit and a fixed acquisition unit arranged on an inner rail of the escalator, wherein the fixed acquisition unit is used for acquiring the vibration quantity of a fixed position of the inner rail, and the mobile acquisition unit is used for acquiring the vibration quantity of each escalator step;
the wireless signal sending unit is arranged corresponding to the mobile acquisition unit and the fixed acquisition unit and is used for sending the vibration signals acquired by the mobile acquisition unit and the fixed acquisition unit;
the mobile acquisition unit includes: the second pressure induction sheet is arranged between the bearing seat body of the rolling wheel and the escalator step; the second pressure-voltage/current conversion unit is connected with the wireless signal sending unit and converts the pressure signal sensed by the second pressure sensing sheet into a voltage/current signal;
a wireless data receiving unit which receives a signal from the wireless signal transmitting unit;
the GPRS remote data transmitter transmits the signal to a remote control center through a GPRS network;
the fixed acquisition unit comprises:
the first pressure sensing pieces are arranged on the supporting surface of the straight line section of the inner guide top, the top of each first pressure sensing piece is covered with a pressure bearing piece, and the first distance between every two adjacent pressure sensing pieces is equal to the first distance between every two adjacent rolling wheels;
the first pressure-voltage/current conversion unit is connected with the wireless signal sending unit and converts the pressure signal sensed by the first pressure sensing sheet into a voltage/current signal;
the length of the pressure bearing sheet is 0.8-0.9 times of the first distance, and the first pressure sensing sheet is located at the center of the length of the pressure bearing sheet;
still include the gyro wheel recognition unit, the gyro wheel recognition unit includes:
the RFID tags are correspondingly arranged with the rolling wheels one by one;
the reader is arranged at a fixed position on the escalator, is used for reading the content of the RFID tag, and is connected with the wireless signal sending unit;
the method for determining the acquisition time period by the remote control center comprises the following steps:
determining a detection section on the inner barrier, wherein at least two first pressure sensing pieces are included in the detection section;
the escalator working time in a working day is taken as a detection unit, and a waveform diagram of voltage/current of each first pressure induction sheet in the detection section along with time change when the rolling wheels set in at least two detection units roll is detected;
calculating the average value of the voltage/current value of each wave crest in the oscillogram when the set rolling wheel rolls from the detection road section each time;
establishing a basic waveform by taking the average value as a vertical coordinate and a set time interval of the rolling wheel reaching the detection road section as a horizontal coordinate, and selecting an acquisition time period according to the basic waveform;
the acquisition time period comprises the intersection of the time ranges of the basic waveforms of all the detection units above the set average value;
or the acquisition time period comprises the intersection of time ranges of the basic waveforms of all the detection units below a set average value.
2. The escalator vibration signal detecting and transmitting system according to claim 1, wherein said second pressure-sensitive strip is disposed horizontally or vertically.
3. The escalator vibration signal detection and transmission system according to claim 1, wherein in the collection time period, with any one of the fixed collection units as a reference, a waveform diagram of voltage/current changes with time of the first pressure sensing sheet in a period of rolling of all rolling wheels of the escalator is established as a basis for judging the vibration quantity of the rolling wheels.
4. The escalator vibration signal detection and transmission system according to claim 1, wherein in the collection time period, a waveform diagram of voltage/current changes with time after all the first pressure sensing pieces of the escalator are rolled by the same rolling wheel is established with any rolling wheel as a reference, and the waveform diagram is used as a vibration quantity judgment basis in the range where the first pressure sensing pieces are located.
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| CN113460843A (en) * | 2021-07-05 | 2021-10-01 | 江苏普瑞尔特控制工程有限公司 | Intelligent early warning system of escalator |
| CN117326435B (en) * | 2023-11-30 | 2024-03-22 | 中国特种设备检测研究院 | Staircase fault diagnosis method and diagnosis system |
| CN117466090B (en) * | 2023-12-26 | 2024-03-05 | 南京安诺电梯有限公司 | Evaluation method and system for elevator destination layer selection |
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| JP4305342B2 (en) * | 2004-09-10 | 2009-07-29 | 株式会社日立製作所 | Passenger conveyor |
| JP2009096581A (en) * | 2007-10-16 | 2009-05-07 | Mitsubishi Electric Building Techno Service Co Ltd | Man conveyor safety apparatus |
| TW201803798A (en) * | 2016-06-21 | 2018-02-01 | 伊文修股份有限公司 | Passenger transport system with monitoring and marking device for characterizing defective step units |
| CN207903728U (en) * | 2017-12-08 | 2018-09-25 | 苏州江南嘉捷电梯有限公司 | A kind of pedal for escalator state monitoring apparatus |
| CN209906170U (en) * | 2019-04-26 | 2020-01-07 | 北京长城华瑞科技有限公司 | Escalator safe operation on-line monitoring and early warning system |
| CN110104533A (en) * | 2019-05-28 | 2019-08-09 | 上海交通大学 | The fault finding system and method for escalator or moving sidewalk |
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