JP5921238B2 - Passenger conveyor warning device - Google Patents

Description

  The present invention relates to a warning device for a passenger conveyor that warns a passenger who does not hold a handrail.

Passenger conveyors such as escalators and traversers typically have handrails that move at the same speed as the steps, and while riding on the passenger conveyor, passengers support their bodies by grabbing the handrails with their hands. Can and ensure safety.
In addition, for example, when a safety device provided on the passenger conveyor is activated and an emergency stop or the like is controlled, there is a possibility that the passenger may be in danger if the handrail is not grasped.
For these reasons, there is a need for a technology that warns passengers who are not grasping the handrail to grasp the handrail in the passenger conveyor.

  For example, in a conventional passenger conveyor warning device described in Patent Document 1, a sensor for detecting a person uses a sensor for detecting a passenger and a sensor for detecting whether or not a handrail is grasped. If the sensor that detects whether or not you are grabbing a handrail does not detect that you are grabbing a handrail, it judges that there is a passenger who does not grab the handrail and warns you by voice and light Has been implemented.

  Here, in Patent Document 1, a sensor for detecting a passenger is arranged on a ceiling and has a plurality of steps as a detection range, and a sensor for detecting whether or not a handrail is grasped is a light projecting unit and a light receiving unit. One of them is placed inside (step side) and below the handrail, and the other is placed on the ceiling, and the light between the light projecting part and the light receiving part is blocked by a part of the body. It is determined whether or not the handrail is held.

JP 2009-196733 A

However, in the conventional warning device for passenger conveyors such as Patent Document 1, a sensor for detecting whether or not a handrail is being gripped is disposed on the inner side (step side) and lower than the handrail. You may detect a part of the body of the nearest passenger on the inside, grab the handrail about a passenger whose part is approaching the handrail or a passenger whose part is in contact with the handrail. There is a problem that a warning is not carried out for a passenger who does not grasp the handrail and erroneously detects that there is a handrail.
Also, because the sensor that detects people does not distinguish between the left and right of the step, if two passengers are lined up side by side in the same step, if one passenger is grabbing the handrail, the other passenger There was a problem that the warning was not carried out even if it was not grasped.
Furthermore, since it is necessary to arrange the light receiving unit or the light projecting unit of the sensor for detecting the person and the sensor for detecting whether or not the handrail is grasped on the ceiling, it takes time and effort to perform the arrangement work and the adjustment of the sensor. There were problems such as this.

  The present invention has been made to solve the above-described problems, and does not erroneously detect a part of the passenger's body in the immediate vicinity of the inside of the handrail as a hand, and two people in the same step. When one passenger is holding a handrail and the other passenger is not holding a handrail, the other passenger is not detecting the handrail and is warned Further, it is an object of the present invention to provide a warning device for a passenger conveyor that does not require time and effort to arrange and adjust sensors.

In order to achieve the above object, a warning device for a passenger conveyor according to the present invention comprises a distance sensor arranged in a fixed portion where the passenger conveyor does not move, and detects a passenger on a step near a handrail of the passenger conveyor. It is composed of a detection sensor unit, a distance sensor arranged on a fixed part where the passenger conveyor does not move outside the handrail, a handrail grip detection sensor unit for detecting gripping of the handrail by a passenger, the human detection sensor unit, and the A handrail grab detection unit that determines that a passenger on the step does not grab the handrail and outputs a warning signal based on the sensor unit, and the handrail grab detection sensor unit causes the passenger to grab the handrail for a predetermined time or more. When detected, the determination unit determines that the passenger has stepped on the handrail and outputs a warning signal .

  According to the present invention, it is not erroneously detected that a part of the passenger's body nearest to the inside of the handrail is a hand, and two passengers are lined up side by side in the same step. If the other passenger is not holding the handrail, it can be detected and warned that the other passenger is not holding the handrail. It does not take.

The external view seen from the entrance direction of the warning device of the passenger conveyor which concerns on Embodiment 1 of this invention is shown. The explanatory view about the detection of the grip of the handrail by the handrail grip detection sensor part of the warning device of the passenger conveyor concerning Embodiment 1 of this invention is shown. The block diagram of the warning device of the passenger conveyor which concerns on Embodiment 1 of this invention is shown. The flowchart of the process of the warning apparatus of the passenger conveyor which concerns on Embodiment 1 of this invention is shown. The sensor arrangement | positioning seen from the entrance direction about the left side half of the warning device of the passenger conveyor which concerns on Embodiment 2 of this invention is shown. The flowchart of the process of the warning device of the passenger conveyor which concerns on Embodiment 2 of this invention is shown. The sensor arrangement | positioning seen from the entrance direction about the left side half of the warning device of the passenger conveyor which concerns on Embodiment 3 of this invention is shown. The flowchart of the process of the warning device of the passenger conveyor which concerns on Embodiment 3 of this invention is shown.

Embodiment 1 FIG.
1: shows the external view seen from the entrance direction of the warning device of the passenger conveyor which concerns on Embodiment 1 of this invention. This warning device for passenger conveyors is step 1 that moves between the entrance and exit of the passenger conveyor, step 1 between deck boards 2a and 2b, side panels 3a and 3b, and entrance and exit of the passenger conveyor. The handrails 4a and 4b moving at the same speed are arranged at a height above the step 1 and below the handrails 4a and 4b, and the optical axes 6a and 6b are horizontal and perpendicular to the traveling direction of the passenger conveyor. It is arranged to face the direction and the inside of the passenger conveyor, and is at a height lower than the human detection sensor portions 5a and 5b and the handrails 4a and 4b that detect the passengers on the sensor side from the center of step 1. Arranged and handrail grip detection sensor portions 7a and 7b are disposed outside the passenger conveyor so that the optical axes 8a and 8b are directed vertically upward, and detect gripping of the handrail.

  The human detection sensor units 5a and 5b detect whether or not an object exists within a predetermined distance, and are, for example, optical distance sensors. The human detection sensor parts 5a and 5b are usually arranged in a fixed part inside the side panels 3a and 3b. However, when the side panels 3a and 3b are made of glass, as shown in FIG. You may arrange | position in the fixed part outside 3b.

  The human detection sensor units 5a and 5b detect objects on the optical axes 6a and 6b, respectively. The specific detection range of the human detection sensor units 5a and 5b is, for example, about 0 to 500 mm in the case of an escalator having a width of about 1000 mm in Step 1 of a type in which two people are arranged on Step 1. That is, the vicinity of the handrail of the passenger conveyor on the human detection sensor unit 5a, 5b side from the center of step 1 is set as a detection range.

  When the passenger stands on the human detection sensor unit 5a side from the center of step 1, the passenger passes in front of the human detection sensor unit 5a with the movement of step 1. At this time, when the passenger passes on the optical axis 6a indicating the detection range of the human detection sensor unit 5a, the human detection sensor unit 5a detects the passenger.

The handrail grip detection sensors 7a and 7b detect whether or not an object exists on the optical axes 8a and 8b within a predetermined distance, and are, for example, optical distance sensors.
The handrail grab detection sensors 7a and 7b are located on the outside of the handrails 4a and 4b (on the side opposite to step 1) so that the optical axes 8a and 8b face vertically upward at a height below the handrails 4a and 4b. It arrange | positions at the fixed part which a conveyor does not move, and arrange | positions the optical axes 8a and 8b as close as possible to the handrails 4a and 4b in the range which does not hit the handrails 4a and 4b.

  FIG. 2 shows an explanatory diagram for detecting handrail gripping by the handrail gripping detection sensor unit 7a of the warning device for passenger conveyors according to the first embodiment of the present invention. As shown in FIG. 2, when the passenger is grasping the handrail 4a, the handrail grip detection sensor unit 7a passes through the optical axis 8a which is the detection range of the handrail grip detection sensor unit 7a. The passenger's hand 9 is detected and the grip of the handrail is detected. Further, when the passenger does not grip the handrail 4a, the hand 9 of the handrail does not pass over the optical axis 8a of the handrail grip detection sensor unit 7a, so the handrail grip detection sensor unit 7a does not detect the hand 9 of the passenger. It is determined that the passenger is not holding the handrail 4a.

  FIG. 3 shows a block diagram of a warning device for passenger conveyors according to Embodiment 1 of the present invention. The warning device for the passenger conveyor receives the outputs of the human detection sensor units 5a and 5b and the output of the handrail grip detection sensor units 7a and 7b, and the human detection sensor units 5a and 5b detect the passenger and detect the handrail grip. When the sensor units 7a and 7b do not detect the grip of the handrail, it is determined that “there is a passenger who does not grip the handrail”, and the determination unit 10 that outputs a warning signal and the warning signal output by the determination unit 10 are received. Then, the warning part 11 which warns with a sound or a voice with respect to a passenger is provided.

  Next, the operation will be described. FIG. 4 shows a flowchart of processing of the warning device for passenger conveyor according to the first embodiment of the present invention. First, it is determined whether the human detection sensor unit 5a has detected a passenger (step ST11). If the human detection sensor unit 5a has not detected a passenger (NO in step ST11), the process returns to step ST11 and the process is repeated. . On the other hand, when the human detection sensor unit 5a detects a passenger (when step ST11 is YES), it is determined whether the handrail grip detection sensor unit 7a has detected the grip of the handrail (step ST12).

  When the handrail grip detection sensor unit 7a detects gripping of the handrail (when step ST12 is NO), the process returns to step ST11 and is repeated. On the other hand, when the handrail grip detection sensor unit 7a does not detect the grip of the handrail (when step ST12 is YES), the determination unit 10 determines that “there is a passenger who does not grip the handrail” (step ST13). Then, a warning signal is output to the warning unit 11 (step ST14). When receiving the warning signal, the warning unit 11 issues a warning by sound or voice to the passenger who does not hold the handrail 4a (step ST15), returns to step ST11, and repeats the process.

  In the case where the passenger stands on the human detection sensor unit 5b side of step 1 of the passenger conveyor, the same detection is performed by the human detection sensor unit 5b and the handrail grip detection sensor unit 7b, and the human detection sensor unit 5b and The detection result of the handrail grab detection sensor unit 7b is sent to the determination unit 10, and the determination unit 10 similarly determines the detection result.

  In the first embodiment, the human detection sensor units 5a and 5b and the handrail grip detection sensor units 7a and 7b are optical distance sensors. However, an optical reflective sensor that measures the intensity of reflected light is used. , An optical reflective distance sensor that measures the distance from the time it takes for the reflected light to return after irradiating light, a distance sensor that measures the distance from the time it takes for the reflected wave to return after irradiating ultrasonic waves, etc. Any sensor that can detect whether or not an object exists within a predetermined distance may be used.

  It should be noted that only one or a plurality of passenger conveyor warning devices may be installed for one passenger conveyor.

  As described above, according to the first embodiment of the present invention, the human detection sensor is configured by the distance sensor arranged in the fixed portion where the passenger conveyor does not move, and detects the passenger on the step 1 near the handrail of the passenger conveyor. A handrail grip detection sensor unit 7a, 7b for detecting gripping of a handrail by a passenger, comprising a distance sensor disposed on a fixed portion where the passenger conveyor does not move outside the handrails 4a, 4b, and a human detection Based on the sensor units 5a and 5b and the handrail grip detection unit sensor units 7a and 7b, it is configured to include a determination unit 10 that determines that the passenger on Step 1 does not grip the handrail and outputs a warning signal. As a result, it is avoided that a part of the passenger's body approaches the handrails 4a and 4b or is in contact with the handrails 4a and 4b, and erroneously detects that the handrails 4a and 4b are gripped. When two passengers line up side by side in the same step 1, one passenger is grabbing the handrail 4a, and the other passenger is not grasping the handrail 4b Even so, it can be detected that the other passenger is not grasping the handrail 4b, and the sensors are not arranged on the ceiling or the like above the handrails 4a, 4b. It does not take.

Embodiment 2. FIG.
The configuration of the warning device for passenger conveyors according to the second embodiment is the same as that of the warning device for passenger conveyors according to the first embodiment shown in FIGS.

  In the passenger conveyor warning device according to the second embodiment, the handrail grip detection sensors 7a and 7b not only detect the handrail grip on the optical axes 8a and 8b, but also detect the duration of the handrail grip detection. To do. The determination unit 10 makes a determination based on the detection results of the human detection sensor units 5a and 5b and the detection results of the handrail grip detection sensor units 7a and 7b, and outputs a warning signal corresponding to the determination result to the warning unit 11. The warning unit 11 issues a warning according to the warning signal output by the determination unit 10. In addition, the same code | symbol is attached | subjected to the structure similar to what was demonstrated in Embodiment 1, and the overlapping description is abbreviate | omitted.

  FIG. 5: shows the sensor layout seen from the entrance direction about the left side half of the warning device of the passenger conveyor which concerns on Embodiment 2 of this invention. As shown in FIG. 5, when the passenger's torso 12 is on the handrail 4a, the passenger may fall or collide with an external obstacle or the like, which is dangerous.

  When the passenger's torso 12 passes over the handrail 4a with the passenger's torso 12 riding on the handrail 4a, the passenger's torso 12 passes on the optical axis 8a indicating the detection range of the handrail grab detection sensor 7a, and the handrail grab detection sensor The part 7a detects the passenger's torso 12. At this time, the detection time of the passenger torso 12 detected by the handrail grip detection sensor unit 7a is determined by the speed of the handrail 4a and the width of the detected passenger torso 12, and if the speed of the handrail 4a is constant, It can be considered that the detection time is proportional to the width of the passenger body 12.

  For example, when the width of the passenger's hand 9 is 100 mm and the width of the passenger's torso 12 is 400 mm, the detection time of the handrail grip detection sensor unit 7a is larger than the detection time when the passenger's hand 9 passes. The detection time when 12 passes is quadrupled. Therefore, in the determination unit 10, when the human detection sensor unit 5a detects a passenger and the detection time detected by the handrail grip detection sensor unit 7a is equal to or greater than a predetermined threshold value (predetermined time), the “embark on the handrail” It is determined that there are passengers, and a warning signal corresponding to the determination result is output to the warning unit 11.

  Similarly to the case of the first embodiment, when the human detection sensor unit 5a detects a passenger and the handrail grip detection sensor unit 7a does not detect the grip of the handrail, the determination unit 10 determines that “the handrail is not gripped. It is determined that there are passengers, and a warning signal corresponding to the determination result is output to the warning unit 11.

  When the warning unit 11 receives the warning signal output from the determination unit 10, the warning unit 11 warns the passenger on step 1 by sound or voice according to the received warning signal. For example, when the determination unit 10 determines that “there is a passenger who does not grasp the handrail”, the passenger is warned to grasp the handrails 4a and 4b, and is determined that “there is a passenger who has entered the handrail”. If it is, the passenger is warned to get off the handrails 4a and 4b.

  Next, the operation will be described. FIG. 6 shows a flowchart of processing of the warning device for passenger conveyors according to Embodiment 2 of the present invention. First, it is determined whether the human detection sensor unit 5a has detected a passenger (step ST21). If the human detection sensor unit 5a has not detected a passenger (NO in step ST21), the process returns to step ST21 and the process is repeated. . On the other hand, when the human detection sensor unit 5a detects a passenger (when step ST21 is YES), it is determined whether the handrail grip detection sensor unit 7a has detected the grip of the handrail (step ST22).

  When the handrail grip detection sensor unit 7a does not detect the grip of the handrail (when step ST22 is YES), the determination unit 10 determines that “there is a passenger who does not grip the handrail” (step ST23). On the other hand, when the handrail grip detection sensor unit 7a detects gripping of the handrail (when step ST22 is NO), the handrail grip detection sensor unit 7a calculates the detection time of the optical axis 8a (step ST24), and the determination unit 10 is determined whether the detection time detected by the handrail grip detection sensor unit 7a is longer than a predetermined threshold (step ST25).

  If the detection time is shorter than the predetermined threshold (NO in step ST25), the process returns to step ST21 and the process is repeated. On the other hand, when the detection time is longer than the predetermined threshold (in the case of YES in step ST25), the determination unit 10 determines that “there is a passenger who has gone out of the body on the handrail” (step ST26).

  Next, the determination unit 10 outputs a warning signal according to the determination result (step ST27), and the warning unit 11 performs a warning according to the warning signal output by the determination unit 10 (step ST28), and then step ST21. Return to and repeat the process.

  In the second embodiment, the human detection sensor units 5a and 5b and the handrail grip detection sensor units 7a and 7b are optical distance sensors. However, an optical reflective sensor that measures the intensity of reflected light. , An optical reflective distance sensor that measures the distance from the time it takes for the reflected light to return after irradiating light, a distance sensor that measures the distance from the time it takes for the reflected wave to return after irradiating ultrasonic waves, etc. Any sensor that can detect whether or not an object exists within a predetermined distance may be used.

  It should be noted that only one or a plurality of passenger conveyor warning devices may be installed for one passenger conveyor.

  As described above, according to the second embodiment of the present invention, the same effect as in the first embodiment can be obtained, and the handrail grip detection sensor units 7a and 7b detect the grip of the handrail by the passenger for a predetermined time or more. In addition, since the determination unit 10 is configured to determine that the passenger has boarded the handrail and output a warning signal, the passenger who has boarded the handrail 4a, 4b can be warned to stop the boarding. Can contribute to safety.

Embodiment 3 FIG.
The configuration of the passenger conveyor warning device according to the third embodiment differs from the passenger conveyor warning device according to the second embodiment in the following points. In the passenger conveyor warning device according to the third embodiment, the human detection sensor units 5a and 5b are installed at lower positions. Further, the determination unit 10 outputs a warning signal when the handrail grip detection sensor units 7a and 7b detect gripping of the handrail by the passenger for a predetermined time or more and the human detection sensor units 5a and 5b do not detect the passenger. . In addition, the same code | symbol is attached | subjected to the structure similar to what was demonstrated in Embodiment 1, 2, and the overlapping description is abbreviate | omitted.

  FIG. 7 is a sensor layout diagram of the passenger conveyor warning device according to the third embodiment of the present invention as viewed from the entrance direction. As shown in FIG. 7, the human detection sensor unit 5 a is disposed inside the deck board 2 a and is brought close to Step 1 within a range where the passage of Step 1 is not detected. By installing the human detection sensor unit 5a close to step 1 in this manner, when the foot is lifted from step 1, the passenger's foot does not pass on the optical axis 6a of the human detection sensor unit 5a. The sensor unit 5a does not detect a passenger.

  Moreover, the determination part 10 adds that the human detection sensor parts 5a and 5b have not detected the passenger to the condition of determining that “there is a passenger who has climbed the trunk on the handrail” in the second embodiment.

  Next, the operation will be described. FIG. 8: shows the flowchart of the process of the warning device of the passenger conveyor which concerns on Embodiment 3 of this invention. First, it is determined whether or not the handrail grip detection sensor unit 7a detects a handrail grip (step ST31).

  When the handrail grip detection sensor unit 7a does not detect the grip of the handrail (when step ST31 is YES), it is determined whether the human detection sensor unit 5a has detected a passenger (step ST32), and the human detection sensor unit 5a detects the passenger. If not (NO in step ST32), the process returns to step ST31 and is repeated. On the other hand, when the human detection sensor unit 5a detects a passenger (when step ST32 is YES), the determination unit 10 determines that “there is a passenger who does not hold the handrail” (step ST33).

  When the handrail grip detection sensor unit 7a detects a handrail grip (when step ST31 is NO), the handrail grip detection handrail grip detection sensor unit 7a calculates the detection time of the optical axis 8a by the handrail grip (step ST34). The determination unit 10 determines whether the detection time detected by the handrail grip detection sensor unit 7a is longer than a predetermined threshold (step ST35).

  If the detection time is shorter than the predetermined threshold (NO in step ST35), the process returns to step ST31 and the process is repeated. On the other hand, when the detection time is longer than the predetermined threshold (in the case of YES in step ST35), it is determined whether the human detection sensor unit 5a has detected a passenger (step ST36). When the human detection sensor unit 5a detects a passenger (when step ST36 is NO), the process returns to step ST31 and the process is repeated. On the other hand, when the human detection sensor unit 5a does not detect a passenger (when step ST36 is YES), the determination unit 10 determines that “there is a passenger who has gone over the trunk on the handrail” (step ST37).

  Next, the determination unit 10 outputs a warning signal according to the determination result (step ST38), and the warning unit 11 performs a warning according to the warning signal output by the determination unit 10 (step ST39), and then step ST31. Return to and repeat the process.

  In the third embodiment, the human detection sensor units 5a and 5b and the handrail grip detection sensor units 7a and 7b are optical distance sensors. However, an optical reflective sensor that measures the intensity of reflected light is used. , An optical reflective distance sensor that measures the distance from the time it takes for the reflected light to return after irradiating light, a distance sensor that measures the distance from the time it takes for the reflected wave to return after irradiating ultrasonic waves, etc. Any sensor that can detect whether or not an object exists within a predetermined distance may be used.

  It should be noted that only one or a plurality of passenger conveyor warning devices may be installed for one passenger conveyor.

  As described above, according to the third embodiment of the present invention, the same effect as in the second embodiment can be obtained, and the handrail grip detection sensor units 7a and 7b can detect the grip of the handrail by the passenger for a predetermined time or more. When the human detection sensors 5a and 5b have not detected a passenger, the determination unit determines that the passenger has entered the handrail and outputs a warning signal. It is possible to detect and warn of the entry, which can contribute more safely.

  In the present invention, within the scope of the invention, any combination of the embodiments, or any modification of any component in each embodiment, or omission of any component in each embodiment is possible. .

  1 step, 2a, 2b deck board, 3a, 3b side panel, 4a, 4b handrail, 5a, 5b human detection sensor unit, 6a, 6b optical axis, 7a, 7b handrail grab detection sensor unit, 8a, 8b optical axis, 9 Passenger's hand, 10 judgment part, 11 warning part, 12 passenger's fuselage.

Claims (3)

A human detection sensor unit configured by a sensor arranged in a fixed portion where the passenger conveyor does not move, and detecting a passenger on a step near the handrail of the passenger conveyor,
A handrail grip detection sensor unit configured to detect a grip of the handrail by a passenger, which is configured by a sensor disposed on a fixed portion where the passenger conveyor does not move outside the handrail;
A determination unit that determines that a passenger on the step is not grasping the handrail based on detection of the human detection sensor unit and the handrail grip detection sensor unit, and outputs a warning signal ;
A warning device for a passenger conveyor, wherein, when the handrail grip detection sensor unit detects gripping of the handrail by a passenger for a predetermined time or more, the determination unit determines that the passenger has stepped on the handrail and outputs a warning signal. . A human detection sensor unit configured by a sensor arranged in a fixed portion where the passenger conveyor does not move, and detecting a passenger on a step near the handrail of the passenger conveyor,
A handrail grip detection sensor unit configured to detect a grip of the handrail by a passenger, which is configured by a sensor disposed on a fixed portion where the passenger conveyor does not move outside the handrail;
A determination unit that determines that a passenger on the step is not grasping the handrail based on detection of the human detection sensor unit and the handrail grip detection sensor unit, and outputs a warning signal;
When the handrail grip detection sensor unit detects the grip of the handrail by a passenger for a predetermined time or more and the human detection sensor unit does not detect the passenger, the determination unit determines that the passenger has stepped on the handrail and issues a warning signal possible to output a warning device of passengers conveyor it said. The warning device for a passenger conveyor according to claim 1 or 2, wherein the human detection sensor unit and the handrail grip detection sensor unit are arranged on each of the fixed portions on both sides of the passenger conveyor.

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