JPH078145U - Door operation status confirmation device - Google Patents

Abstract

(57) [Summary] [Purpose] To be able to always check the operating status of the door. [Structure] The ratio of the operation time of the door close detection switch 2 and the operation time of the interlock switch 3 is obtained, and when the value is within a predetermined value, it is determined that the operation time of the interlock switch 3 is normal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a door operation state confirmation device that measures a door opening time, a door closing time, and a door closing timing of a train.

[0002]

[Prior art]

 The train is equipped with an interlock switch that detects the opening and closing of the door in order to detect blinking of the car side lights and satisfaction of the power running condition. It is necessary for this switch to detect the door closing even when an object with a specified width is sandwiched, and it is not possible to detect the door closing when an object wider than the specified width by a predetermined value is inserted. Has been. For this reason, the objects are sandwiched between the doors, and the furniture is adjusted so as to meet the standards.

[0003]

[Problems to be solved by the device]

 It is necessary to regularly check the items that have been adjusted in this way, as their condition may change over time. At that time, strictly, it is necessary to check whether or not the specified object is sandwiched and the standard is satisfied.

Although it is desirable to constantly monitor for safe operation, this test has a problem that it 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]

[Means for Solving the Problems]

 In order to solve such a problem, the present invention provides a door open detection switch that sends a door open signal after the time when the door can be considered to be fully opened and a door open detection signal when the door is open. Before and after the door open detection signal from the interlock switch is sent out and the door open detection signal from the interlock switch changes, and the door open detection signal stops when the opened door closes with the object of the specified width closed. Of the door close detection switch that sends the door close signal for a predetermined time, the time of generation of the door close signal output from the door close detection switch, and the door open detection signal output from the interlock signal. An arithmetic unit for detecting whether or not the ratio of change times is within a predetermined value.

[0007]

[Action]

 The ratio of the operation time of the door close detection switch to the operation time of the interlock switch is obtained, and when the value is within a predetermined value, it is determined that the operation time of the interlock switch is normal.

[0008]

【Example】

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

FIG. 2 shows the mounting positions of various switches. As shown in FIG. 2, the door open detection switch is installed in a position that 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 3 is attached to a position that is turned on when the door is closed, like the door close detection switch 2, and their operation timings are set as shown in FIG.

As shown in FIG. 3A, the door open detection switch 1 sends a door open signal that turns on from a 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 closes the door about 13 mm before the door is considered closed. The open detection signal is set to be turned off.

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

FIG. 4 is a diagram showing the basis of these numerical values, and it is determined that it is necessary to detect the door closing even when a 25 mm width, which is an example of the specified width, is sandwiched. By pinching the object, the protective rubber attached to the door is deformed by about 6 mm. For this reason, a space of about 13 mm is created between the doors because the 25 mm one is sandwiched.

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 needs to 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. The signal 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 each switch that operates at such timing is 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.

Further, regarding the door closing, it is confirmed that the door is closed when a 6 mm door is closed after the output signal is generated from the door closing detection switch 2. 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, the door will close normally. I will confirm.

In this case, there is a variation in the door opening / closing speed due to a variation in the capability of the door engine. There are variations and accurate measurement cannot be performed. However, the rise time at which the door close detection switch 2 generates the door close signal can be accurately measured, and the time at which the door open detection signal output from the interlock switch 3 falls can be accurately measured. it can.

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. Therefore, by taking the ratio of those times, it is possible to monitor the change in the operating time of the interlock switch 3 with respect to the operating time of the door close detection switch 2. Therefore, if the measurement unit 4 in FIG. 1 performs the measurement and monitors whether the interlock switch is operating at the initially set timing, it is always known whether or not the door closing timing is operating normally.

For example, when the door is closed, if the ratio of the change time of the interlock switch 3 and the change time of the door close detection switch 2 is larger than a predetermined value, the change timing of the door open detection signal output from the interlock switch 3 is delayed. It can be seen that there is a possibility that the door closing may not be detected even if an object of 25 cm is sandwiched late.

Further, 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 obtained by detecting the time from the door opening to the door closing.

As described above, it is possible to determine whether or not the door is operating normally by detecting the operation timing of each switch. For example, if the result display section of the measuring section 4 is provided in the driver's cab, the door is always operated. Can monitor more than normal. 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. In addition, it is more certain to judge that the door is closed when the door advances by 13 mm than when the interlock switch is operated, that is, when the object is not caught in the door.

[0023]

[Effect of device]

 As described above, the present invention is provided with a door open detection switch, a door close detection switch, and an interlock switch, and by checking the timing, it is possible to confirm the door opening / closing and detect the door open time and the door close time. It has the effect of being able to.

[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) Tadakazu Minami 4-2-4 Shibata, Kita-ku, Osaka-shi, Osaka Prefecture West Japan Passenger Railway Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A door open detection switch that sends a door open signal after a timing slightly earlier than the timing when the door is 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 between the door 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 for sending a closing signal, and a ratio of a generation time of the door closing signal output from the door closing detection switch to a change time of the door opening detection signal output from the interlock signal is within a predetermined value. A door operation state confirmation device, comprising: a calculation unit that detects whether or not the door operation state is present.