CN114112465A - Platform door dynamic performance detection device and method - Google Patents
Platform door dynamic performance detection device and method Download PDFInfo
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- CN114112465A CN114112465A CN202111368003.7A CN202111368003A CN114112465A CN 114112465 A CN114112465 A CN 114112465A CN 202111368003 A CN202111368003 A CN 202111368003A CN 114112465 A CN114112465 A CN 114112465A
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- 238000001514 detection method Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title description 13
- 238000006073 displacement reaction Methods 0.000 claims abstract description 44
- 238000012545 processing Methods 0.000 claims abstract description 12
- 239000011521 glass Substances 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000004590 computer program Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/004—Testing the effects of speed or acceleration
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- Platform Screen Doors And Railroad Systems (AREA)
Abstract
The invention belongs to the technical field of platform door detection, and provides a device for detecting the dynamic performance of a platform door, which comprises a shell, wherein a flip cover is arranged on one side surface of the shell, a data line connecting box is arranged in the flip cover, and the data line connecting box is fixedly connected with a main board arranged in the shell; a drawer is arranged on any other side surface of the shell; the laser displacement sensor is placed in the drawer and can be electrically connected with the data line connection box; and the display screen is electrically connected with the mainboard. The invention also provides a platform door dynamic performance detection method, which has the advantages that the sensor, the data processing system and the display terminal are integrated and installed through the portable special tool kit, the detection is convenient to carry and carry under various test environments, the detection equipment is simple and convenient to install, the detection steps are simple, the automatic detection is realized, and the operation can be realized without professional testers.
Description
Technical Field
The invention relates to the technical field of platform door detection, in particular to a platform door dynamic performance detection device and method.
Background
The platform door, also called a screen door, is a glass curtain wall that surrounds the railway platform and the train landing space on the platform. The platform door is a device which is arranged on the side edge of the adjacent track of the subway platform and isolates the platform area from the track area. When the train arrives, the electric door on the glass curtain wall is opened for passengers to get on or off the train. The main purpose of setting up the platform door is that prevent personnel from falling the track and taking place the accident, reduces station air conditioning ventilation system's operation energy consumption, reduces the influence of train operation noise and piston wind to the station simultaneously, provides a safe, comfortable environment of waiting for the passenger, avoids delaying the operation because of the platform accident.
In an industry standard CJ/T236-2006 urban rail transit platform screen door, clear requirements are made on the performance and detection of the platform screen door, and the maximum kinetic energy of each sliding door is not more than 10J as specified in a standard 5.2; and meanwhile, the speed curves of opening and closing the sliding door are specified to be tested. At present, the speed of closing the door of subway platform door and kinetic energy detect and rely on artifical the measurement mostly, have certain danger, artifical manual detection moreover, test data is inaccurate also unstable.
Disclosure of Invention
The invention aims to provide a platform door dynamic performance detection device and a method, which are used for solving the problem of inconvenience in detection of a platform sliding door;
in order to achieve the purpose, the invention adopts the technical scheme that:
a platform door dynamic performance detection apparatus, comprising:
the data line connection box is fixedly connected with a main board arranged in the shell; a drawer is arranged on any other side surface of the shell;
the laser displacement sensor is placed in the drawer and can be electrically connected with the data line connection box;
and the display screen is electrically connected with the mainboard.
Furthermore, a platform door dynamic performance detection system is arranged on the main board, and calculates the corresponding speed and kinetic energy of the platform sliding door according to the information collected by the laser displacement sensor, and displays the speed and kinetic energy through the display screen in a chart form.
Further, the platform door dynamic performance detection system comprises:
a data receiving module comprising a plurality of data interfaces, the plurality of data connectors each mounted on the data line junction box;
the calculating module is used for calculating the real-time speed and the real-time kinetic energy of the platform sliding door according to the displacement information received by the data receiving module;
and the drawing module is used for forming a real-time speed curve and a kinetic energy curve according to the calculated real-time speed and real-time kinetic energy.
Further, the calculation unit includes:
the average unit is used for carrying out average processing on the three groups of collected displacement information;
the differential unit is used for carrying out differential processing on the displacement information subjected to the average value processing to obtain the real-time speed of the platform sliding door;
and the kinetic energy calculating unit is used for calculating the real-time kinetic energy of the platform sliding door by combining the real-time speed of the platform sliding door according to the platform sliding door quality information obtained in a preset mode.
Further, the method also comprises the following steps: and the storage module is provided with a USB interface and is used for storing the real-time speed and the real-time kinetic energy obtained by calculation and the drawn chart information in real time and deriving the information through an external USB flash disk.
Further, an operation panel is arranged on the shell and comprises a keyboard and a touch pad, and the keyboard and the touch pad can control the running state of the platform door dynamic performance detection system.
Furthermore, a rotating shaft is arranged on the shell, and the display screen is rotatably connected with the shell through the rotating shaft.
The present invention also provides a method for detecting dynamic performance of a platform door, comprising the steps of:
s1, taking out the laser displacement sensor from the drawer, and fixing the sensor on the fixed door glass beside the platform sliding door;
s2, connecting the data output end of the laser displacement sensor to the data interface of the data receiving module;
s3, electrifying the platform door dynamic performance detection device and starting the platform door dynamic performance detection system;
and S4, acquiring the dynamic performance information of the platform sliding door on the display screen.
Compared with the prior art, the invention at least comprises the following beneficial effects:
(1) the sensor, the data processing system and the display terminal are integrated and installed through a portable special tool box, so that the portable special tool box is convenient to carry and detect in various test environments;
(2) an upper computer program is pre-installed on the mainboard, so that detected data can be directly processed, can be displayed in real time through a display screen, and can also be directly controlled through an operation panel;
(3) the detection equipment is simple and convenient to install, has simple detection steps, realizes automatic detection, and can be operated without professional testers.
Drawings
FIG. 1 is a schematic structural diagram of a detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another view angle of the detecting device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of the interior of the housing according to one embodiment of the present invention;
fig. 4 is a schematic diagram of a dynamic performance detection system for platform doors according to an embodiment of the present invention;
fig. 5 is a flowchart of a method for detecting dynamic performance of a station door according to an embodiment of the present invention.
In the figure, 1, a shell, 11, a data line connecting box, 111, a flip cover, 12, a drawer, 13, an operation panel, 14, a main board, 2 and a display screen
Detailed Description
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
Moreover, descriptions of the present invention as relating to "first," "second," "a," etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating a number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example one
As shown in fig. 1-3, the present invention provides a platform door dynamic performance detecting apparatus, comprising: casing 1, display screen 2 and laser displacement sensor. A flip cover 111 is arranged on one side surface of the shell 1, a data line connection box 11 is arranged in the flip cover 111, and the data line connection box 11 is fixedly connected with a main board 14 arranged in the shell 1; a drawer 12 is provided on any other side of the housing 1. When the detection is not carried out, the laser displacement sensor is placed in the drawer, and when the detection is needed, the data output end of the laser displacement sensor is connected with the data line connecting box 11, so that the mainboard can receive the information collected by the laser displacement sensor.
The sucking disc of laser displacement sensor from taking the absorption formula, only need during the test directly adsorb laser displacement sensor on the fixed door can, open the toolbox, insert power cord and laser displacement sensor's data line can, simple installation.
Further, the main board 14 is provided with a platform door dynamic performance detection system, which calculates the speed and kinetic energy corresponding to the platform sliding door according to the information collected by the laser displacement sensor, and displays the speed and kinetic energy in a graph form through the display screen 2.
The shell 1 is provided with a rotating shaft, and the display screen 2 is rotatably connected with the shell through the rotating shaft. Still be provided with the buckle on the display screen, can carry out the buckle with the casing and be connected.
An operation panel 13 is arranged on the housing 1, the operation panel 13 comprises a keyboard and a touch pad, and the operation state of the platform door dynamic performance detection system can be controlled through the keyboard and the touch pad.
The portable special tool box is used for integrally mounting the sensor, the data processing system and the display terminal, and is convenient to carry and detect in various test environments.
As shown in fig. 4, the platform door dynamic performance detecting system includes:
and the data receiving module comprises a plurality of data interfaces, and the data connectors are all installed on the data line connecting box.
And the calculating module is used for calculating the real-time speed and the real-time kinetic energy of the platform sliding door according to the displacement information received by the data receiving module.
And the drawing module is used for forming a real-time speed curve and a kinetic energy curve according to the calculated real-time speed and real-time kinetic energy.
And the storage module is provided with a USB interface and is used for storing the real-time speed and the real-time kinetic energy obtained by calculation and the drawn chart information in real time and deriving the information through an external USB flash disk.
Wherein the calculation unit includes:
and the average unit is used for averaging the three groups of collected displacement information.
And the differentiating unit is used for differentiating the displacement information subjected to the average value processing to obtain the real-time speed of the platform sliding door.
And the kinetic energy calculating unit is used for calculating the real-time kinetic energy of the platform sliding door by combining the real-time speed of the platform sliding door according to the platform sliding door quality information obtained in a preset mode.
The laser displacement sensor is provided with a negative pressure type sucker, the sensor is fixed on the fixed door glass beside the sliding door, after the laser displacement sensor is electrified, laser is emitted by the laser displacement sensor to hit the protruding door frame of the sliding door, the distance is used as an initial value of the sliding door, and when the sliding door is opened and closed, the laser displacement sensor can obtain a relative displacement value of the sliding door. Considering the test error, three laser displacement sensors are arranged at the upper, middle and lower three points of the fixed door glass beside the sliding door, and the average value is taken as the effective value of the finally read relative displacement of the sliding door.
The laser displacement sensor uploads detection data to the data receiving module, the data receiving module uploads the data to the main board, the average value unit carries out average value processing on relative displacement of three groups of collected sliding doors, then the average value of the three groups of displacement is carried out on the time of the action of the sliding doors by v ═ ds/dt differential processing, and the real-time speed of the whole operation process of the sliding doors is obtained. The mass of the sliding door is written in through the operation panel or the mass of the sliding door is preset, and the real-time kinetic energy of the sliding door is obtained through J-mv 2/2 in combination with the real-time value of the speed of the sliding door.
And then, all the speed points and the kinetic energy points can be drawn into a real-time speed curve and a kinetic energy curve through a drawing module and finally displayed through a display screen. In addition, the data points and curves can be stored in real time through the storage module, and the data can be exported to the U disk through the USB interface.
The invention installs the upper computer program on the mainboard in advance, can directly process the detected data, display the data in real time through the display screen, and also can directly control the detection process through the operation panel.
Example two
As shown in fig. 5, the method for detecting dynamic performance of platform door of the present invention includes the steps of:
s1, taking out the laser displacement sensor from the drawer, and fixing the sensor on the fixed door glass beside the platform sliding door;
s2, connecting the data output end of the laser displacement sensor to the data interface of the data receiving module;
s3, electrifying the platform door dynamic performance detection device and starting the platform door dynamic performance detection system;
and S4, acquiring the dynamic performance information of the platform sliding door on the display screen.
The laser displacement sensor is provided with a negative pressure type sucking disc, the laser displacement sensor is fixed on the fixed door glass beside the sliding door, the laser displacement sensor emits laser to hit a door frame protruding out of the sliding door after the detection device is electrified, and the laser displacement sensor can obtain a relative displacement value of the sliding door through the opening and closing process of the sliding door. The system for detecting the dynamic performance of the platform door with the relative displacement value can obtain the real-time speed and the kinetic energy of the sliding door in the opening and closing process, an operator can directly read the dynamic performance of a sliding dream on a display screen, the test equipment is simple to install, the detection steps are simple and convenient, automatic detection is carried out systematically, and the system can be operated without professional testers.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (8)
1. A platform door dynamic behavior detection device, comprising:
the data line connection box is fixedly connected with a main board arranged in the shell; a drawer is arranged on any other side surface of the shell;
the laser displacement sensor is placed in the drawer and can be electrically connected with the data line connection box;
and the display screen is electrically connected with the mainboard.
2. The device as claimed in claim 1, wherein the main board is provided with a platform door dynamic performance detecting system, which calculates the corresponding speed and kinetic energy of the platform sliding door according to the information collected by the laser displacement sensor, and displays the speed and kinetic energy in a graph form through the display screen.
3. The apparatus of claim 2, wherein the platform door dynamic performance detecting system comprises:
a data receiving module comprising a plurality of data interfaces, the plurality of data connectors each mounted on the data line junction box;
the calculating module is used for calculating the real-time speed and the real-time kinetic energy of the platform sliding door according to the displacement information received by the data receiving module;
and the drawing module is used for forming a real-time speed curve and a kinetic energy curve according to the calculated real-time speed and real-time kinetic energy.
4. The apparatus of claim 3, wherein the computing unit comprises:
the average unit is used for carrying out average processing on the three groups of collected displacement information;
the differential unit is used for carrying out differential processing on the displacement information subjected to the average value processing to obtain the real-time speed of the platform sliding door;
and the kinetic energy calculating unit is used for calculating the real-time kinetic energy of the platform sliding door by combining the real-time speed of the platform sliding door according to the platform sliding door quality information obtained in a preset mode.
5. The apparatus of claim 3, further comprising: and the storage module is provided with a USB interface and is used for storing the real-time speed and the real-time kinetic energy obtained by calculation and the drawn chart information in real time and deriving the information through an external USB flash disk.
6. The device of claim 2, wherein an operation panel is disposed on the housing, and the operation panel includes a keyboard and a touch pad, and the keyboard and the touch pad can control an operation state of the platform door dynamic performance detection system.
7. The apparatus of claim 2, wherein the housing is provided with a shaft, and the display screen is rotatably connected to the housing through the shaft.
8. A platform door dynamic performance detection method based on the platform door dynamic performance detection device of any one of claims 1 to 7, comprising the steps of:
s1, taking out the laser displacement sensor from the drawer, and fixing the sensor on the fixed door glass beside the platform sliding door;
s2, connecting the data output end of the laser displacement sensor to the data interface of the data receiving module;
s3, electrifying the platform door dynamic performance detection device and starting the platform door dynamic performance detection system;
and S4, acquiring the dynamic performance information of the platform sliding door on the display screen.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111368003.7A CN114112465A (en) | 2021-11-18 | 2021-11-18 | Platform door dynamic performance detection device and method |
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| CN202111368003.7A CN114112465A (en) | 2021-11-18 | 2021-11-18 | Platform door dynamic performance detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815718A (en) * | 2022-06-27 | 2022-07-29 | 宁波中车时代传感技术有限公司 | Platform door intelligence early warning platform of total powerstation level |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455370A (en) * | 2010-10-27 | 2012-05-16 | 西安扩力机电科技有限公司 | Intelligent multifunctional velocity and displacement calibrating system |
| CN204594606U (en) * | 2014-10-13 | 2015-08-26 | 上海市特种设备监督检验技术研究院 | A kind of door closing force and kinetic energy proving installation of closing the door |
| CN106467260A (en) * | 2015-08-18 | 2017-03-01 | 上海市特种设备监督检验技术研究院 | A kind of elevator horizontally sliding door is closed the door kinetic energy dynamic testing method |
| CN206248116U (en) * | 2016-12-02 | 2017-06-13 | 广州建设工程质量安全检测中心有限公司 | A kind of kinetic energy instrument for detecting screen door in rail transit |
| CN207231532U (en) * | 2017-08-23 | 2018-04-13 | 上海山南勘测设计有限公司 | A kind of Portable Data Acquisition Device |
| CN210155273U (en) * | 2019-06-27 | 2020-03-17 | 成都启新航空技术有限公司 | Portable switch detection equipment |
| CN112034280A (en) * | 2020-07-23 | 2020-12-04 | 郑州地铁集团有限公司运营分公司 | Portable platform door system multichannel detection switch testing arrangement |
| CN112068535A (en) * | 2020-09-22 | 2020-12-11 | 牛玉涛 | Platform door intelligence fortune dimension system |
-
2021
- 2021-11-18 CN CN202111368003.7A patent/CN114112465A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102455370A (en) * | 2010-10-27 | 2012-05-16 | 西安扩力机电科技有限公司 | Intelligent multifunctional velocity and displacement calibrating system |
| CN204594606U (en) * | 2014-10-13 | 2015-08-26 | 上海市特种设备监督检验技术研究院 | A kind of door closing force and kinetic energy proving installation of closing the door |
| CN106467260A (en) * | 2015-08-18 | 2017-03-01 | 上海市特种设备监督检验技术研究院 | A kind of elevator horizontally sliding door is closed the door kinetic energy dynamic testing method |
| CN206248116U (en) * | 2016-12-02 | 2017-06-13 | 广州建设工程质量安全检测中心有限公司 | A kind of kinetic energy instrument for detecting screen door in rail transit |
| CN207231532U (en) * | 2017-08-23 | 2018-04-13 | 上海山南勘测设计有限公司 | A kind of Portable Data Acquisition Device |
| CN210155273U (en) * | 2019-06-27 | 2020-03-17 | 成都启新航空技术有限公司 | Portable switch detection equipment |
| CN112034280A (en) * | 2020-07-23 | 2020-12-04 | 郑州地铁集团有限公司运营分公司 | Portable platform door system multichannel detection switch testing arrangement |
| CN112068535A (en) * | 2020-09-22 | 2020-12-11 | 牛玉涛 | Platform door intelligence fortune dimension system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114815718A (en) * | 2022-06-27 | 2022-07-29 | 宁波中车时代传感技术有限公司 | Platform door intelligence early warning platform of total powerstation level |
| CN114815718B (en) * | 2022-06-27 | 2022-09-27 | 宁波中车时代传感技术有限公司 | Platform door intelligence early warning platform of total powerstation level |
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Effective date of registration: 20240202 Address after: 315111 Minglun village, Wuxiang Township, Yinzhou District, Ningbo City, Zhejiang Province Applicant after: NINGBO CRRC TIMES ELECTRIC EQUIPMENT CO.,LTD. Country or region after: China Address before: No.138 Zhenyong Road, Jiangbei District, Ningbo City, Zhejiang Province Applicant before: NINGBO CRRC TIMES TRANSDUCER TECHNOLOGY Co.,Ltd. Country or region before: China |