CN109812174B - Method for controlling motion curve of shield door based on wind pressure - Google Patents
Method for controlling motion curve of shield door based on wind pressure Download PDFInfo
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- CN109812174B CN109812174B CN201910262810.7A CN201910262810A CN109812174B CN 109812174 B CN109812174 B CN 109812174B CN 201910262810 A CN201910262810 A CN 201910262810A CN 109812174 B CN109812174 B CN 109812174B
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Abstract
The invention discloses a method for controlling a motion curve of a shield door based on wind pressure, which comprises the following steps: setting a resistance threshold value in a motion curve of the shielding door, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value; monitoring real-time wind pressure in the tunnel in real time by using a wind pressure sensor, and adjusting a resistance threshold value, an output torque value and a shield door speed in a motion curve of the shield door by PSC according to data of the wind pressure sensor; if the feedback speed of the shielding door is less than the set speed, the system increases the output torque value to make the feedback speed equal to the set speed; the output torque value is less than or equal to the output torque value corresponding to the set resistance threshold value; and performing door opening/closing operation according to the motion curve of the shielding door. The invention achieves the aim of normally opening/closing the door under the condition of paroxysmal strong wind pressure and also ensures the safety of passengers.
Description
Technical Field
The invention relates to the technical field of urban rail transit platform screen door systems, in particular to a method for controlling a screen door motion curve based on wind pressure.
Background
The urban subway shield door system is positioned beside a train track. When the shielding door is closed, a closed space is formed with the tunnel. When the train moves in the circular closed space, piston wind is generated. The wind pressure is related to the train movement speed, the tunnel fan, the air valve air shaft and other factors.
The piston wind creates additional friction on the screen door. The additional friction increase results in an increase in the door opening/closing resistance, which exceeds a threshold value for door opening/closing resistance, which causes door opening/closing resistance. However, if the door opening force/door closing threshold is simply increased, an injury accident may occur if a passenger robs the door down and is clamped by the shielding door.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a method for controlling a motion curve of a shielded door based on wind pressure, which comprises the following steps:
setting a door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value in a motion curve of the shielding door;
monitoring real-time wind pressure in the tunnel in real time by using a wind pressure sensor, and adjusting a door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value in a motion curve of the shielding door according to data of the wind pressure sensor by using a PSC (Power Carrier Package);
step three, if the feedback speed of the shielding door is greater than or equal to the set speed, turning to step six; if the feedback speed of the shielding door is less than the set speed, the system increases the output torque value to make the feedback speed equal to the set speed;
step four, if the output torque value is less than or equal to the output torque value corresponding to the set door opening/closing resistance threshold, the step six is carried out; if the output torque value is larger than the output torque value corresponding to the set door opening/closing resistance threshold value, turning to the fifth step;
step five, if the output torque value is larger than the output torque value corresponding to the door opening/closing resistance threshold value, entering resistance meeting logic, after entering the resistance meeting logic, the shielding door tries the set times of door opening/closing, if the set times of door opening/closing cannot be normally opened/closed, stopping opening/closing the door, and sending an alarm;
and step six, performing door opening/closing operation according to the motion curve of the shielding door.
Further, the step two of adjusting the door opening/closing resistance threshold value and the output torque value corresponding to the resistance threshold value in the motion curve of the shield door according to the wind pressure sensor data by the PSC comprises the following steps:
(1) the transmitter converts the data of the wind pressure sensor into an analog current signal and transmits the analog current signal to the PSC;
(2) PSC obtains a wind pressure value in the tunnel according to the analog quantity current signal;
(3) when the value of the wind pressure in the tunnel obtained by the PSC is different from the set value, the PSC adjusts the door opening/closing resistance threshold value in the motion curve of the shielding door and the output torque value corresponding to the resistance threshold value.
Further, the specific manner of adjusting the door opening/closing resistance threshold value and the output torque value corresponding to the resistance threshold value in the motion curve of the shield door by using the PSC in the step (3) is as follows: setting a plurality of continuous wind pressure intervals with the same size on a left interval and a right interval of a set wind pressure value, wherein each interval is provided with a corresponding door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value; when the wind pressure is smaller than the set wind pressure value, the PSC selects a meeting resistance threshold value of a wind pressure interval in which the wind pressure value in the tunnel is positioned on the left interval of the set wind pressure value, an output torque value corresponding to the meeting resistance threshold value and a door opening/closing speed corresponding to the meeting resistance threshold value.
The invention has the beneficial effects that: through the real-time monitoring of the wind pressure, the PSC adjusts the door opening/closing resistance threshold value in the motion curve, so that the normal door opening/closing under the condition of high gusty wind is realized, and the aim of ensuring the safety of passengers is fulfilled.
Drawings
FIG. 1 is a schematic view of a method of controlling a motion curve of a shielding door based on wind pressure;
FIG. 2 is a diagram illustrating PSC adjustment of a encounter resistance threshold.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, the speed of the opening and closing door is reduced due to the influence of external factors, and a DCU (door controller) in a PSC (screen door control system) performs PID (proportional-integral-derivative) adjustment to increase the actual speed to a set speed. For this purpose, the DCU increases the output torque of the motor, and the output torque is larger than the door opening/closing resistance threshold value, so that the resistance logic is entered. Entry into the distress logic may be avoided by raising the high door open/close distress threshold in the motion profile.
And distinguishing the specific reasons causing the increase of the door opening/closing resistance of the shielding door, and if the door opening/closing resistance caused by the wind pressure is increased, improving the door opening force/door closing threshold value to ensure normal door opening/closing. If the door opening/closing resistance caused by the clamping of people and the clamping of objects is increased, entering a blocking mode according to normal logic to prevent passengers from being injured by the clamping, and monitoring real-time air pressure in the tunnel through an air pressure sensor; the shield door motion profile is adjusted via the profinet bus.
Firstly, presetting a door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value in a motion curve of the shield door; installing wind pressure sensors at two ends of a vehicle door, monitoring real-time wind pressure in a tunnel in real time by using the wind pressure sensors, and dynamically adjusting a door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value in a motion curve of the shield door by using a PSC (primary synchronization signal) according to data of the wind pressure sensors; the opening/closing speed fed back by the shield door is greater than or equal to the set speed, which indicates that the shield door normally works; if the feedback speed of the shield door is less than the set speed, the shield door meets the wind pressure resistance, the foreign matter or the resistance of passengers, and the system increases the output torque value at the moment to enable the feedback speed to be equal to the set speed; if the output torque value is less than or equal to the output torque value corresponding to the set door opening/closing resistance threshold value, the shielding door is proved to be subjected to wind pressure resistance, and if the output torque value is greater than the output torque value corresponding to the set door opening/closing resistance threshold value, the shielding door is proved to be the resistance of foreign matters or passengers; at the moment, the output torque value is larger than the output torque value corresponding to the door opening/closing resistance threshold value, the shielding door enters the resistance meeting logic, the shielding door tries the set times of door opening/closing after entering the resistance meeting logic, and if the door cannot be normally opened/closed after the set times of door opening/closing are tried, the door opening/closing is stopped, and an alarm is sent out.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A method for controlling a motion curve of a shield door based on wind pressure is characterized by comprising the following steps:
step one, setting a door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value in a motion curve of the shielding door according to wind pressure in a tunnel;
monitoring real-time wind pressure in the tunnel in real time by using a wind pressure sensor, and adjusting a door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value in a motion curve of the shielding door according to data of the wind pressure sensor by using a PSC (Power Carrier Package);
step three, if the feedback speed of the shielding door is greater than or equal to the set speed, turning to step six; if the feedback speed of the shielding door is less than the set speed, the system increases the output torque value to make the feedback speed equal to the set speed;
step four, if the output torque value is less than or equal to the output torque value corresponding to the set door opening/closing resistance threshold, the step six is carried out; if the output torque value is larger than the output torque value corresponding to the set door opening/closing resistance threshold value, turning to the fifth step;
step five, if the output torque value is larger than the output torque value corresponding to the door opening/closing resistance threshold value, entering resistance meeting logic, after entering the resistance meeting logic, the shielding door tries the set times of door opening/closing, if the set times of door opening/closing cannot be normally opened/closed, stopping opening/closing the door, and sending an alarm;
and step six, performing door opening/closing operation according to the motion curve of the shielding door.
2. The method for controlling a screen door motion curve based on wind pressure according to claim 1, wherein the step two of adjusting the door opening/closing resistance threshold value and the output torque value corresponding to the resistance threshold value in the screen door motion curve by the PSC according to the wind pressure sensor data comprises the following steps:
(1) the transmitter converts the data of the wind pressure sensor into an analog current signal and transmits the analog current signal to the PSC;
(2) PSC obtains a wind pressure value in the tunnel according to the analog quantity current signal;
(3) when the value of the wind pressure in the tunnel obtained by the PSC is different from the set value, the PSC adjusts the door opening/closing resistance threshold value in the motion curve of the shielding door and the output torque value corresponding to the resistance threshold value.
3. The method for controlling a motion curve of a shield door based on wind pressure according to claim 2, wherein the PSC in step (3) adjusts the door opening/closing resistance threshold value and the output torque value corresponding to the resistance threshold value in the motion curve of the shield door in a specific manner: setting a plurality of continuous wind pressure intervals with the same size on a left interval and a right interval of a set wind pressure value, wherein each interval is provided with a corresponding door opening/closing resistance threshold value, an output torque value corresponding to the resistance threshold value and a door opening/closing speed corresponding to the resistance threshold value; when the wind pressure is smaller than the set wind pressure value, the PSC selects a meeting resistance threshold value of a wind pressure interval in which the wind pressure value in the tunnel is positioned on the left interval of the set wind pressure value, an output torque value corresponding to the meeting resistance threshold value and a door opening/closing speed corresponding to the meeting resistance threshold value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910262810.7A CN109812174B (en) | 2019-04-02 | 2019-04-02 | Method for controlling motion curve of shield door based on wind pressure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910262810.7A CN109812174B (en) | 2019-04-02 | 2019-04-02 | Method for controlling motion curve of shield door based on wind pressure |
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| CN109812174B true CN109812174B (en) | 2020-07-17 |
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| CN112777462A (en) * | 2021-02-07 | 2021-05-11 | 杭州西奥电梯有限公司 | Control method of door closing resistance self-adaptive elevator door motor |
| CN114541918B (en) * | 2022-04-01 | 2023-08-22 | 日立楼宇技术（广州）有限公司 | Method, device, equipment and storage medium for controlling opening and closing of rail transit platform door |
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| JP5500670B2 (en) * | 2009-04-30 | 2014-05-21 | 日本信号株式会社 | Home door device |
| KR101092903B1 (en) * | 2009-09-11 | 2011-12-12 | 한국철도기술연구원 | apparatus for preventing inflow of air in tunnel |
| CN106769513A (en) * | 2017-01-13 | 2017-05-31 | 广州建设工程质量安全检测中心有限公司 | A kind of rail transit platform screen door detects Crowd Extrusion loading device and its method |
| CN108756586B (en) * | 2018-04-19 | 2023-11-24 | 广州地铁设计研究院股份有限公司 | Intelligent control device for platform door |
| CN109095337A (en) * | 2018-10-31 | 2018-12-28 | 日立电梯（中国）有限公司 | Elevator monitoring system, elevator door and its Wind-Pressure Resistance method and wind resistance pressure device |
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