JPH0733018A - Confirmation device for operational state of door - Google Patents

Abstract

PURPOSE:To always confirm operational state of a door. CONSTITUTION:A door is determined to be in open state when an interlock switch 3 sends out a door open sensing signal and a door open sensing switch 1 detects a door open state. The door is determined to be in closed state when the door open sensing signal from the interlock switch changes while a door closed sensing switch 2 sends out a door closed signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door operation state confirmation device for measuring a train door opening time, a door closing time and a door closing timing.

[0002]

2. Description of the Related Art A train is provided with an interlock switch for detecting opening and closing of a door in order to detect blinking of a vehicle side light and establishment of a power running condition. This switch is required to detect the door closing even when an object with a specified width is inserted, and it is determined that the door closing should not be detected when an object wider than the specified width by a predetermined value is inserted. There is. For this reason, the objects are sandwiched between the doors and the furniture is adjusted so as to satisfy the standard.

[0003]

Problems such as those obtained through the above-mentioned adjustments may change due to aging, so it is necessary to check them regularly. At that time, strictly, it is necessary to check whether or not the standard object is satisfied by sandwiching the specified object.

Although it is desirable to constantly monitor for safe operation, this test has a problem that the test cannot be performed frequently because it takes a very long time. Further, conventionally, there is no means for detecting whether or not the door is completely opened.

The present invention has been made in view of such a situation, and it is possible to always confirm the operating state of the door.

[0006]

In order to solve such a problem, the present invention provides a door open detection which sends a door open signal after a timing slightly earlier than the timing when the door is considered to be fully opened. A switch, an interlock switch that sends a door open detection signal when the door is open, and stops the generation of the door open detection signal when the open door closes with an object of a specified width, and an interlock switch. A door closing detection switch that sends a door closing signal for a predetermined time before and after the door opening detection signal from the lock switch changes, a door opening signal sent from the door opening detection switch, and a door sent from the interlock switch. When both open detection signals are generated, it is judged that the door is open,
A control unit that determines the door closing time from the door closing signal sent from the door closing detection switch and the door opening detection signal generated from the interlock switch, and monitors the change at the door closing time Is.

[0007]

[Function] When the interlock switch sends the door open detection signal, the door open detection switch detects the opening of the door, it is determined that the door is open, and the door close detection switch sends the door close signal. It is determined that the door is closed when the door open detection signal from the interlock switch changes.

[0008]

FIG. 1 is a block diagram showing an embodiment of the present invention, in which a door opening detection pond switch 1, a door closing detection switch 2, and an interlock switch 3 are connected to a control unit 4 and each of these switches. From the operation timing of
At, the operation state of opening and closing the door is confirmed.

FIG. 2 shows the mounting positions of various switches. As shown in FIG. 2, the door open detection switch is installed at a position which is turned on when the door is opened, and the door close detection switch 2 is installed when the door is closed. It is installed in the position where it is turned on.

The interlock switch is mounted at a position which is turned on when the door is closed, like the door closing detection switch 2, and their operation timings are set as shown in FIG.

As shown in FIG. 3 (a), the door open detection switch 1 sends a door open signal which is turned on slightly before the position where the door is considered to be open. As shown in FIG. 3 (c), the interlock switch 3 turns on the door open detection signal when the door is open, and opens the door when the door is closed about 13 mm before the door is considered closed. The detection signal is set to turn off.

The door close detection switch 2 is turned on 6 mm before the time when the interlock switch 3 is turned off, and is 6 mm before the time when the interlock switch 3 is turned off.
It is set to turn off after mm.

FIG. 4 is a diagram showing the basis of these numerical values,
It has been decided that it is necessary to be able to detect the closing of the door even when a 25 mm width, which is an example of the specified width, is sandwiched. At this time, the protective rubber attached to the door by the door sandwiching the object It deforms by about 6 mm. Therefore, a space of about 13 mm is created between the doors by sandwiching the 25 mm one.

Therefore, the signal of the interlock switch 3 needs to change 13 mm before the time when the door is considered closed, and the door open detection signal indicating that the interlock switch 3 has operated must change.

Further, since the protective rubber attached to the door bends by about 6 mm, the door closing signal output from the door closing detection switch 2 is the door opening detection signal output from the interlock switch 3. Is output from a position 6 mm before the position where the change occurs, and further to a position 6 mm after the position where the door open detection signal changes.

FIG. 1 shows a state in which the switches operating at such timings are connected to the measuring unit 4, and the measuring unit 4 confirms the door operation. For example, the door opening is confirmed by the condition that the interlock switch 3 is on and the condition that the door opening detection switch 1 is on.

The door is closed when the door is closed 6 mm after the output signal from the door close detection switch 2 is generated. In this case, it takes about 30 ms for the door to travel 6 mm, so if the output signal of the interlock switch 3 changes 30 ms after the output signal from the door close detection switch 2, it is confirmed that the door is closed. To do.

The door opening time and the door closing time are obtained by detecting the time from the door closing to the door opening, and the door closing time is detected by detecting the time from the door opening to the door closing.

In this way, it is possible to determine whether or not the door is operating normally by detecting the operation timing of each switch. Therefore, for example, if the measuring unit 4 is provided in the operator's cab, it is possible to keep the door above normal. Can be monitored. It is more certain that the door opening is judged not at the moment when the door opening detection switch 1 is operated, but at a time slightly after that time. Further, it is more certain to judge that the door is closed by the time when the door is advanced by 13 mm than when the interlock switch is operated, that is, when the object is not caught in the door.

[0020]

As described above, according to the present invention, the door opening detection switch, the door closing detection switch, and the interlock switch are provided, and the opening and closing of the door can be confirmed by monitoring the timing of the door opening time and the door opening time. It has the effect that the closing time can be detected.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a mounting position of each switch.

FIG. 3 is a diagram showing an operation timing of each switch shown in FIG.

FIG. 4 is a diagram showing a state where a 25 mm object is sandwiched between doors.

[Explanation of symbols]

 1 Door open detection switch 2 Door close detection switch 3 Interlock switch 4 Measuring section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadakazu Minami 2-4-24 Shibata, Kita-ku, Osaka-shi, Osaka Prefecture West Japan Railway Company

Claims (1)

[Claims] 1. A door open detection switch that sends a door open signal after a timing slightly earlier than the timing when the door can be considered to be completely opened, and a door open detection signal that is opened when the door is open. The interlock switch that stops the generation of the door open detection signal when the door closes with the object of the specified width sandwiched, and the door for a predetermined time before and after the door open detection signal from the interlock switch changes. A door closing detection switch that sends a closing signal, a door opening detection signal sent from the door opening detection switch, and a door opening detection signal sent from the interlock switch are both determined to be door opening. , When the door is closed from the door closing signal sent from the door closing detection switch and the door opening detection signal generated from the interlock switch A door operation state confirmation device including a control unit that determines whether the door is closed and monitors the change at the time of closing the door.