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Rail

Localization example of subway shield door DCU unit

Date: 2016-11-22

Urban rail transit platform shield doors are installed at the edges of subway, light rail, and other transportation stations to isolate the rail from the platform waiting area and correspond to train doors. The subway screen door system is one of the station equipment systems.Its main purpose in the subway is to isolate the public area of the station platform from the track area, reduce the impact of train running noise and piston wind on passengers waiting on the platform, and prevent people from falling off the track. Accidents have occurred, creating conditions for future unmanned driving of subway vehicles.

At present, only a few companies in the world, such as British Westinghouse Company, French Favran Company, Japan NABCO Company, and Swiss KABA Company, can produce subway shield door products. At the request of a subway company, Xinxin Technology successfully localized the existing old subway shield door DCU unit equipment and achieved the following functions required by a subway company:
(1) Enough to execute the on and off commands issued by system-level control and station-level control; the opening time is 2.5 s ~ 3. O s
Adjustable in the range, the closing time is adjustable in the range of 3.0 s to 3.5 s;
(2) The number of times of opening and closing the door without failure is not less than 1 million times;
(3) When performing the door opening operation, first open the lock mechanism, and then perform the door opening operation according to the preset speed curve;
(4) When closing the door, perform the closing action according to the preset speed curve until the door is closed. Require the maximum kinetic energy when closing the door ≤ 10 J, and ≤ 1 J in the last 100 mm stroke range, and check the lock status;

(5) Collect and send shield door status information and various fault information to the main control machine, and then display or alarm the signal system through the man-machine interface;

(6) Through the programming / debugging interface set in the DCU, parameters and software configuration can be adjusted online or offline, and reprogramming and parameter settings can be performed. Single door body debugging can also be performed through external test equipment.

Xinxin Technology has undertaken this project and successfully completed the development and production of localized spare parts products. At present, the nationally-produced subway shield door DCU unit has been tested by a subway company, and its performance has reached the level of replacement with the old prototype plate. .
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