OPERATION

Technical Field

Invention is related to the safety system on escalator with 3D cam viewing the period after the accident or the moment of accident on escalator and capable of stopping the escalator automatically and its method of operation.

Infrastructure of Invention

An escalator is a device having been placed onto a mechanism with its steps rotating continually and runs using electricity. It carries people upward or downward and is more useful than elevators. Primary areas of its use are hotels, shopping malls, train and metro stations as well as airports where human traffic is intense.

Escalator systems accommodate mechanical, electrical and electronic systems in them. Escalator systems are unique means in all respects in transportation of people. They bring bout advantage for use with their features like the fact that they take small space, their reliability, the fact that they appeal to large masses at the same time and on an uninterrupted basis, their speed, saving of time and aesthetic of their appearance. Escalators are classified to be those running in indoor areas and outdoor areas. The general dimensions of escalators are determined by certain variable parameters. Variable parameters are angle of climb, width of step and speed. Speed and width of step are directly proportional to the carrying capacity. Escalators are realized in such a way that they will ensure the sufficient carrying capacity based on the traffic calculation made. When escalators are running at the low speed first, the system goes up the high speed automatically when the intensity of passengers increases. Due to the fact that escalators remain under loading continuously, they are required to be serviced and controlled in certain periods. Many of the accidents taking place on escalators result in death. Besides, cases of fall are observed frequently on escalators. Following this, serious injuries and disabilities come into existence.

In the existing situation, the escalator is able to be stopped after occurrence of the accident by means of the button on it or over SCADA system, namely via the remote access. After the accident, escalator keeps running. Thus, first is the determination that the accident has occurred and then is the situation of stopping the escalator. In case the accident is determined late, the escalator runs continuously and the injuries of the falling people increase.

In the current technique, escalators are run downwardly and upwardly over SCADA. Escalators are stopped by means of the command given over SCADA for emergencies and maintenance works. There are buttons on escalators in order to stop them in emergencies. These buttons have the feature of stoppage only. Pressing the button, the command 'run' is not able to be given. The escalator deactivated may be rerun using key. In case of power outage, the system comes to a stop automatically. In case of overloading the escalators, the safety key is activated to stop the system.

By means of this invention, the system is able to stop the escalator automatically over an image processing without the need for stopping the escalator after the accident or at the moment of accident. This prevents the cases of a fall, and then the serious injuries and disabilities occurring frequently on escalators.

The structural and characteristic features of the invention and all its advantages will be understood more clearly thanks to the figures given below and the detail explanation written below by making references to these figures and therefore this assessment is required to be made taking into consideration these figures and the detail explanation given. Figures that will be helpful for explaining the invention

Figure 1a: A view of the safety system with 3D cam on an escalator and its method of operation

Figure 1 b: The entire view the safety system with 3D cam on an escalator and its method of operation over a single camera

References that will be helpful for explaining the invention 1. Escalator

2. SOR or main SCADA computer

3. Laser angle gauge sensor

4. Angle of standing on the step Description of the Invention

The invention is a safety system on escalator (1 ) with 3D cam containing the parts of escalator (1 ), 3D cam having the capability of snapshotting the steps and transforming them into data, and SOR or main SCADA computers (2) ensuring the control system over computer, serving to simulate the data and having the feature of integrating them as a whole and its method of operation.

In the escalator (1 ) with 3D cam, the process steps of the safety system and the method of operation are as follows: · In case where no risk of fall exists, the angle of standing (4) on the step of the escalator (1 ) is 90° for person or persons;

• 3D cam processing digital image is mounted on the upper ceiling area or onto side wall being the point from which person or persons on escalator (1 ) may be seen clearly;

· 3D cams mounted to dominant point or points monitor interactively the body movements of person or persons on the steps of escalator (1 ) and their angles of standing (4) on the step;

• 3 dimensional views snapshot via 3D cam are transformed into digital data;

• The views snapshot via 3D are sent to control panel; • The system models the simulations of the variations of fall or moment of fall of person or persons on the escalator (1 );

• In the event that one or several of the body stance forms modeled on the computer for fall or moment of fall take place at the same time, signal is sent to control panel to stop the system;

• After assessing one or several of the variations defined to be danger in terms of views snapshot, the escalator (1 ) is deactivated;

• In areas where a single 3D camera is unable to sense, the escalator (1 ) is divided into zone 1 , zone 2, zone 3 or more zones and the stances of the people on the steps of the entire escalator (1 ) are monitored;

• In case of availability of more than one 3D cam, all of them are integrated to a whole.

• When the escalator (1 ) stops, a second command is expected to arrive when it is reactivated.

Subject invention is fixed to SOR and SCADA computers (2) by 90° as the angles of standing on step (4) by way of laser angle gauge sensors (3). When the degree of fall is reached, escalator (1 ) is slowly braked and stopped. Thereby, risk of accident and injury is minimized. These images are transferred to SOR and SCADA computer (2). Laser angle gauge sensors (3) are adapted to escalator (1 ) and SCADA system.

Subject invention prevents the cases of fall occurring frequently on escalators (1 ) and the serious injuries and disabilities encountered thereafter. By means of this invention, the escalator (1 ) is able to be stopped automatically over an image processing after the accident or at the moment of accident.

In this invention, image processing of 3D cam integrated to the escalator (1 ) system is run over the control panel. With processing the image snapshot via 3D cam, the risk of injury in accidents on escalators (1 ) is minimized. In case of need, the snapshot of the steps of the entire escalator (1 ) may be taken by addition of two or more 3D cams.

The technique and all other features mentioned in every claim are followed by a reference number and these reference numbers are used for facilitating to understand the claims only; therefore, one should not think that these limit the scope of any of the process steps specified with these reference numbers for exemplification purposes. It is obvious that a person who is specialized in the technique may put forth the innovation in the invention by also using similar structuring and/or apply this structuring to other areas of similar purposes used in the relevant technique. Therefore, it is apparent that such structuring will be devoid of the criterion of surpassing the innovation and especially the state of the art.