JP2012180175A - Elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent evacuation time from becoming long and to prevent a risk to respond to a call from a dangerous floor, in an elevator.SOLUTION: The elevator includes: an elevator cage; a taking place call registration device 3; a call registration control unit 20; a running control unit 21; a mode switching unit 19; a fire detector 6 for reporting a fire occurrence signal to the mode switching unit 19; and an operation detection unit 23 for receiving a running mode switching command output from the mode switching unit 19 by the fire occurrence signal and detecting an operation to the button 15 of the taking place call registration device 3 of each floor in an evacuation running mode. The operation detection unit 23 detects the continuous input of a signal indicating the pressed state of the button 15 from one of the taking place call registration devices 3 for a fixed period or more, and prevents the call registration control unit 20 from responding to a registration request of taking place call from the taking place call registration device 3.

Description

  One embodiment relates to an elevator.

  In recent years, when a disaster such as a fire occurs in a building, it has been considered to provide an elevator that promptly evacuates residents to an evacuation floor by actively using the elevator (see, for example, Patent Document 1). Further, an elevator push button device (see Patent Document 2) and an elevator hall call registration device (see Patent Document 3) have been proposed.

JP 2005-22799 A JP 2003-12247 A JP-A-61-254475

  However, when a fire breaks out, the hall call registration device may be exposed to flames or heat due to the spread of fire. Direction buttons indicating the top and bottom of the hall call registration device and the device housing are deformed and damaged by heat. Sprinklers provided on the ceiling of the landing may sprinkle and the control board in the landing call registration device may be exposed to fire-fighting water. A short circuit occurs on the board circuit, and an unexpected overcurrent flows through the wiring. Due to burnout of the direction button or failure due to a short circuit, either the upper or lower direction button is pressed and released. A phenomenon occurs in which the state where pressing of the direction button is detected continues.

  As a result, the elevator responds to a hall call that is different from a call generated by a user's operation. The fact that the hall call registration device continues to detect the state in which the up and down direction buttons are pressed continues to let the control panel run the elevator unnecessarily. Overall, the evacuation time is longer, and there is a risk of responding to calls on the dangerous floor. Elevators can endanger customers.

  In order to solve such a problem, according to one embodiment of the present invention, an elevator car that moves up and down a hoistway of a building composed of a plurality of floors is provided at a landing on each floor where the car stops, and a button operation is performed. A hall call registration device for registering a hall call, a call registration control unit for performing call registration by the hall call from the hall call registration device and a car call from the car, and a call registered by the call registration control unit. The operation control unit that moves the car up and down in the hoistway according to the operation mode, and the operation mode of the car that the operation control unit travels is switched between the normal operation mode and the evacuation operation mode, and an operation mode switching command is output. A mode switching unit, a fire detector notifying the mode switching unit of a fire occurrence signal, and the mode switching by the fire occurrence signal notified by the fire detector. An operation detection unit that receives the operation mode switching command output by the unit and detects an operation to the button of the hall call registration device of each floor in the evacuation operation mode, and the operation detection unit is either It is detected from the hall call registration device that a signal indicating that the button has been pressed is continuously input for a predetermined time or more, and the call registration control unit receives the hall call from the hall call registration device. An elevator is provided that does not respond to a registration request.

It is a lineblock diagram of an elevator concerning an embodiment of the invention. It is a functional block diagram of a control panel including a call registration control unit, an operation control unit, a mode switching unit, and an operation detection unit used in the elevator according to the embodiment of the present invention. It is a flowchart for demonstrating the operation | movement switching of the operation mode of the elevator which concerns on embodiment of this invention. It is a flowchart for demonstrating the process at the time of the evacuation operation mode of the elevator which concerns on embodiment of this invention. (A)-(c) is a figure which shows the example of a waveform of the signal which the operation detection part used for the elevator which concerns on embodiment of this invention determines, respectively. (A), (b) is a figure which shows the example of a waveform of the signal at the time of changing the temporary registration conditions used for the elevator which concerns on embodiment of this invention, respectively.

  Hereinafter, an elevator according to an embodiment of the present invention will be described with reference to FIGS. 1 to 6. In the drawings, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a configuration diagram of an elevator according to an embodiment of the present invention. The elevator according to the present embodiment is provided in a car 2 that moves up and down a hoistway 1 of a building composed of a plurality of floors, and a landing on each floor where the car 2 stops, and registers a hall call by operating an up / down direction button. Call registration is performed in accordance with the hall call registration device 3, the car call registration device 4 provided in the car 2, the hall call from the hall call registration device 3, and the car call from the car call registration device 4. A control panel 5 that moves up and down in the hoistway 1 and a fire detector 6 that detects the occurrence of a fire and notifies the control panel 5 of a fire occurrence signal are provided.

  The car 2 is suspended from one end of the main rope 7, and a counterweight 8 is connected to the other end of the main rope 7. The main rope 7 is wound around a hoisting machine 9. When the hoisting machine 9 is driven, the car 2 and the counterweight 8 are moved in a lifting manner in the hoistway 1 via the main rope 7. A signal line 10 is wired between the hoisting machine 9 and the control panel 5. A signal line 11 is wired between the car call registration device 4 and the control panel 5.

  The hall call registration device 3 is provided in the vicinity of the hall door 12 of each hall. The hall call registration device 3 sends and receives signals to and from the control panel 5 through a signal line 13 wired in the wall. Each hall call registration device 3 includes a face plate 14, a direction button (placement call registration button) 15 that is inserted into a hole of the face plate 14 to indicate the upper and lower floor directions, and one or both of the upper and lower direction buttons 15. A control board 16 for notifying the control panel 5 of being pressed, and a box (not shown) that forms a space for housing these direction buttons 15 and the control board 16 together with the face plate 14 are provided.

  The face plate 14 and the box are made of a flame-retardant or non-flammable insulator. The direction button 15 is biased from the back of the face plate 14 to the front surface on the opposite side of the button surface of the direction button 15. A button contact is provided on the opposite surface directly or via a spacer or the like. The button contact points toward the board surface of the control board 16. The control board 16 transmits button direction information to the control board 5 when the board electrode pair contacting and separating from the button contact and the input / output terminal between the control board 5 and the button contact and board electrode pair are electrically connected. And a drive circuit for notification.

  The fire detector 6 collects sensor outputs from the sensors 17 installed at a plurality of locations in the building through the signal line 26. The sensor 17 detects, for example, smoke temperature and smoke concentration. For example, sensors 17 are provided in rooms, landings, evacuation exits, emergency stairs, and the like.

  The control panel 5 is provided in the hoistway 2 and performs call registration, operation mode switching control, elevator operation control during normal operation and evacuation operation after a fire.

  FIG. 2 is a functional block diagram of the control panel 5. In the figure, the above-mentioned reference numerals represent the same elements. The control panel 5 is mainly composed of a CPU, ROM and RAM. When the CPU reads the program from the ROM to the RAM and the CPU executes the processing procedure described in the program, the control panel 5 exhibits a control function.

  The control panel 5 includes an operation mode switching control unit 19 (mode switching unit) for switching and controlling the operation mode of the car 2 between the normal operation mode and the evacuation operation mode, and a hall call and a car call from each hall call registration device 3. A call registration control unit 20 for performing call registration by a car call from the registration device 4; an operation control unit 21 for moving the car 2 in the hoistway 1 in accordance with the call registered by the call registration control unit 20; A car position detection control unit 22 that detects a car position based on a pulse signal train from the machine 9 and a call registration calculation unit 23 that detects an operation applied to the direction button 15 of the hall call registration device 3 in each floor in the evacuation operation mode. (Operation detection unit). The normal operation mode refers to a mode in which the car 2 operates in response to a hall call or a car call. The evacuation operation mode refers to a mode in which the car 2 patrols between one or more predetermined floors.

  The operation mode switching control unit 19 manages the operation mode of the elevator among a plurality of operation modes. The operation mode switching control unit 19 assigns or switches this operation mode to any one of the operation modes, and notifies the call registration control unit 20 of the operation mode information after the switching.

  The call registration control unit 20 switches the elevator call registration control from the call registration control during the normal operation to the call registration control during the evacuation operation in response to the input of the operation mode switching command. The call registration control unit 20 receives a signal indicating that the direction button 15 has been pressed or not pressed from the hall call registration device 3. When the button is pressed, the call registration control unit 20 receives the identification information of the hall call registration device 3 and a signal indicating that one of the upper and lower direction buttons 15 is turned on or a signal indicating that both the upper and lower direction buttons 15 are turned on. Entered.

  The operation control unit 21 outputs a running command for moving the car 2 to the call registered floor to the hoisting machine 9, and controls the door opening / closing of the car door after landing. The operation control unit 21 determines the operation direction of the car 2 from the registered call and the current car position, and outputs the operation direction, the target floor, and the speed instruction information to the hoisting machine 9.

  The car position detection control unit 22 obtains the car position and the raising / lowering speed of the car 2 based on the pulse signal from the hoisting machine 9.

  In the evacuation operation mode, the call registration calculation unit 23 (operation detection unit) confirms that a signal indicating that the direction button 15 has been pressed is continuously input from any one of the hall call registration devices 3 for a predetermined time or more. Detect. The call registration calculation unit 23 is configured not to cause the call registration control unit 20 to respond to a hall call registration request from the hall call registration device 3 to the call registration control unit 20. The call registration calculation unit 23 determines in advance a period in which the waveform of the signal indicating that the button contact and the substrate electrode pair are conducted is high and a period in which the waveform is low, within a predetermined detection period in the evacuation operation mode. An operation for comparing with a threshold value in a certain period is performed.

  FIG. 3 is a flowchart for explaining the operation of switching the operation mode of the elevator according to the present embodiment. The control panel 5 executes the process shown in FIG.

  The elevator according to the present embodiment having the above-described configuration operates in the normal operation mode in Step A1. The control panel 5 accepts call registration from the hall call registration device 3 on each floor.

  A button contact is pushed down by an operation of a person pushing the direction button 15, and the button contact and the substrate electrode pair are electrically connected. In step A1, the hall call registration device 3 outputs the button direction information of either up or down to the control panel 5 by the operation of the person, and the control board 5 indicates that the direction button 15 is pressed. recognize. In step A1, while no operation is performed, the control panel 5 recognizes that the direction button 15 is not pressed. The control panel 5 correctly discriminates the contents operated by the person and the state where the direction button 15 is pressed / not pressed. In step A1, the control panel 5 also receives a signal indicating destination floor information from the car call registration device 4.

  In step A2, the control panel 5 determines whether or not a fire occurrence signal is notified from the fire detector 6. While the fire occurrence signal is not notified, the control panel 5 performs step A1 through the No route. In step A <b> 2, when the fire detector 6 determines that a fire has occurred based on the installation position information of the sensor 17 and the sensor output, the fire detector 6 notifies the control panel 5 of a fire occurrence signal via the signal line 18. The operation mode switching control unit 19 in the control panel 5 outputs an operation mode switching command to the registration control unit 20 with the reception of the fire occurrence signal as a trigger. When the call registration control unit 20 receives this operation mode switching command, the call registration control unit 20 switches the operation mode from the normal operation mode to the evacuation operation mode in Step A3 through the Yes route of Step A2. In the subsequent step A4, the control panel 5 executes the process in the evacuation operation mode (the process labeled I is continuous with the process in FIG. 4).

  FIG. 4 is a flowchart for explaining processing in the elevator evacuation operation mode according to the present embodiment. The control panel 5 executes the process shown in FIG.

  In step B1, the control panel 5 causes the hall call registration device 3 on each floor to display that the elevator starts the evacuation operation. In step B2, the control panel 5 executes a display or the like for guiding the registration method using the direction button 15 of the hall call registration device 3 to the hall call registration device 3 or to the hall indicator device 24 via the signal line 25. Let For example, “Please do not press and hold the button” or “Do not continue to press the button” may be notified to the hall that the user is prompted to press the direction button 15 correctly.

  In step B3, the call registration control unit 20 switches the elevator call registration control from call registration control during normal operation to call registration control during evacuation operation. The call registration control unit 20 cancels the hall call registration registered during normal operation. For example, when the first floor is an evacuation floor and there is a hall call registration from the hall call registration device 3 on the 10th floor, the call registration control unit 20 causes each hall call registration device 3 on the floor above the 10th floor. Cancel the call registration from. In this step B3, the call registration control unit 20 cancels all the car call registrations registered by the car call registration device 4 during normal operation.

  In step B4, the call registration control unit 20 prohibits registration of a new hall call that requires the car 2 to travel in the direction opposite to the evacuation floor when viewed from the current car position. The call registration control unit 20 uniformly sets and registers car destinations for car call registration in the evacuation floor.

  In step B5, the call registration control unit 20 determines whether a landing call is generated on any floor in the same direction as the evacuation floor when viewed from the current car position. If the landing call is registered, the YES route is passed, and in step B6, the call registration control unit 20 causes the operation control unit 21 to respond to the landing call registration and cause the car 2 to travel. If the call registration control unit 20 determines in step B5 that call registration has occurred from any of the hall call registration devices 3, the NO route is passed in step B7. The call registration control unit 20 causes the operation control unit 21 to travel the car 2 to the evacuation floor. The operation control unit 21 instructs the car 2 to open the door and causes the car 2 to stand by.

  In the processing of step B5 and step B6, the control panel 5 calls the evacuation elevator so as not to respond to the hall call registration in which the direction button 15 of the hall call registration device 3 is pressed for a certain time or longer. Control registration.

  FIG. 5A to FIG. 5C are diagrams illustrating examples of waveforms of signals determined by the call registration calculation unit 23. The figure shows the voltage waveform of the signal input to the call registration control unit 20 via the signal line 13 from the hall call registration device 3 provided on the nth floor of any middle layer of the control panel 5. These signals are called and the registration calculation unit 23 determines. In the logic example shown in FIG. 6, “High” represents an on state in which the direction button 15 is pressed, and “Low” represents an off state in which the direction button 15 is not pressed. The signal waveforms in FIGS. 5A and 5B are examples when a person presses the direction button 15 to detect pressing. The signal waveform in FIG. 5C is an example when there is an abnormality such as fusion.

  The call registration calculation unit 23 determines in advance the length of the signal waveform detection period. For example, the detection is performed for 10 seconds after the detection is started. As shown in FIG. 5A, it is assumed that the signal waveform is output high four times within a detection period of 10 seconds. The call registration calculation unit 23 reads the level of the waveform at a time interval much shorter than 10 seconds, and accumulates the sampled voltage level value. When the call registration calculation unit 23 detects that the first high exceeds 1 second, the call registration calculation unit 23 outputs the hall call of the original hall call registration device 3 that has output this signal to the call registration control unit 20. Make provisional registration.

  Thereafter, the signal repeats high and low. In this example, the call registration calculation unit 23 determines that the repetition is caused by an artificial operation. The call registration calculation unit 23 determines that the waveform is caused by a human operation. The call registration control unit 20 registers the temporarily registered hall call as a regular hall call. That is, the call registration calculation unit 23 temporarily registers the call registration, and then treats this call as a regular call if there is no abnormality in the temporarily registered call.

  A person repeatedly presses and releases the direction button 15 for 10 seconds, repeatedly hits the direction button 15 for 10 seconds, or presses the direction button 15 several times. An operation is detected. The high duration, the number of times of high, the detection threshold of the waveform level, etc. are preset in the program. The true values of these factors, such as duration, are determined according to the results of experiments, simulations, and field tests.

  As shown in FIG. 5B, it is assumed that only one high signal waveform is output within the detection period. The call registration calculation unit 23 detects that a high appears once and continues for 2 seconds, then goes low, and that the waveform continues to output low before the end of the detection period. The call registration calculation unit 23 causes the call registration control unit 20 to temporarily register the hall call of the hall call registration device 3 that outputs this signal by continuing the high for 2 seconds. After 10 seconds, the call registration calculation unit 23 determines that this temporary registration is regular hall call registration.

  As shown in FIG. 5C, it is assumed that the signal waveform changes stepwise within the detection period. The call registration calculation unit 23 detects that the waveform rises once from low to high, and thereafter the waveform continues to output high until the detection period of 10 seconds ends. In this case, the call registration calculation unit 23 causes the call registration control unit 20 to temporarily register the hall call of the hall call registration device 3 from which this signal is output at the first rise. When the call registration calculation unit 23 detects that the waveform remains high at the end of the detection period, the call registration calculation unit 23 determines that this signal is abnormal due to fusion or the like. The call registration operation unit 23 continues to detect the situation where the hall call registration device 3 outputs high for several seconds. A condition that a high is continuously detected for 5 seconds is described in advance in the program or registered in the control panel 5 in advance. When the call calculation unit 23 detects a high of 5 seconds or longer, it is detected that the time required for the operation is suspicious. It is detected that a dangerous situation may have occurred. If there is an abnormality in the temporarily registered call registration, the call registration control unit 20 discards the temporarily registered call. The call registration control unit 20 does not answer the call.

  The detection method according to FIGS. 5 (a) to 5 (c) is an example of the nth floor, but the signal waveform from the hall call registration device 3 on each floor from the lowest floor to the upper floor other than the nth floor. The method of detecting is also the same as the example on the nth floor.

  For example, heat or flame may enter the hall call registration device 3 due to a fire. There is a possibility that the direction button 15 is melted and a switch or wiring on the control board 16 is fused. If the elevator control unit erroneously determines that this energization is a button-pressed state when energized by fusion, the elevator control unit dispatches the car in response to call registration from the landing on the flame. The door opening after the car is pointed at is not completely free of the possibility of flames entering the car room.

  Conventionally, in an emergency, an elevator does not respond to a landing call and performs a direct drive to an evacuation floor. Even if fusion has occurred in the hall call registration device, the car opens to the evacuation floor and then opens. It is not possible for a car to land on a dangerous floor such as a fire floor. However, in an elevator that uses a car as a means for evacuation or rescue in the event of a fire, after landing on the rescue floor, it is necessary to determine whether the door can be safely opened on the rescue floor. This is because it is very dangerous if the rescue floor is on fire. In an emergency such as a fire, it is important to operate the evacuation elevator safely and as soon as possible. According to the elevator according to the present embodiment, the evacuated passenger can be evacuated safely and quickly and rescued.

  Moreover, according to the elevator which concerns on this embodiment, it can be judged before driving | running | working the car 2 before door opening about the necessity of the door opening of a landing door, and a danger can be avoided early.

  Further, when the control panel 5 detects an abnormality, it may be displayed on the hall that a button abnormality has occurred in the hall call registration device 3 that has output the abnormality signal. As a result, when there is a waiting customer at the hall, it is avoided that the hall call registration device 3 keeps pushing without knowing the failure or passes through the floor while waiting for the waiting customer. Can do.

(Modification)
In the example of FIG. 5, the period for determining whether or not to perform temporary registration is 1 second, but the period used for registration determination may be 2 seconds, for example.

  FIG. 6A and FIG. 6B are diagrams showing examples of signal waveforms when the temporary registration conditions are changed. When the signal high period is temporarily registered in 2 seconds, the call registration calculation unit 23 detects that the first waveform high exceeds 3 seconds as shown in FIG. The unit 23 causes the call registration control unit 20 to temporarily register the hall call. Assume that after the waveform goes low, the second high continues to be output for 2 seconds and goes low. In this example, the call registration calculation unit 23 treats from temporary registration to regular call registration by detecting low for 0.5 seconds.

  As shown in FIG. 6B, the call registration calculation unit 23 temporarily registers the call registration control unit 20 with the high of the first waveform. Thereafter, the waveform continues to output high, and the waveform remains high even when the detection period elapses. The call registration calculation unit 23 determines that it is abnormal. The call registration calculation unit 23 causes the call registration control unit 20 to cancel temporary registration. The call registration calculation unit 23 does not cause the call registration control unit 20 to respond to the hall call from the hall call registration device 3.

  As described above, the elevator according to the present embodiment switches the elevator call registration control from the call registration control during the normal operation to the call registration control during the evacuation operation by the fire occurrence signal from the fire alarm 6 or the monitoring panel. The elevator does not cause the control panel 5 to respond for the hall call registration in which the direction button 15 for hall call registration continues for a certain time (for example, 10 seconds) or longer. Evacuation work can be advanced as soon as possible, and no response to the dangerous floor call registration.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage.

  In the above embodiment, the control panel 5 detects an abnormality by detecting high continuation, but various waveform patterns can be prepared in advance as an abnormal pattern of the signal waveform. The control panel 5 may detect an abnormality by detecting the continuation of rows within the detection period. A pattern in which intermediate voltage values between high and low continue may be used. A pattern that vibrates at a remarkably high speed compared to the speed of human operation can also be used for detection.

  The shape and structure can be variously changed, such as using the touch sensor type buttons of the hall call registration device 3. Various methods for detecting that the direction button 15 has been pressed can also be changed. The superiority of the present invention is not impaired at all with respect to the implementation products that have been implemented with these modifications.

  In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Hoistway, 2 ... Car, 3 ... Platform call registration apparatus, 4 ... Car call registration apparatus, 5 ... Control panel, 6 ... Fire detector, 7 ... Main rope, 8 ... Counterweight, 9 ... Hoisting machine, 10, 11, 13, 18, 25, 26 ... signal line, 12 ... landing door, 14 ... face plate, 15 ... direction button (button), 16 ... control board, 17 ... sensor, 19 ... operation mode switching control unit ( Mode switching unit), 20 ... call registration control unit, 21 ... operation control unit, 22 ... car position detection control unit, 23 ... call registration calculation unit (operation detection unit), 24 ... landing indicator device.

Claims (5)

The elevator car that goes up and down the hoistway of a building consisting of multiple floors,
A hall call registration device that is provided at the hall of each floor where the car stops and registers the hall call by operating a button;
A call registration control unit for performing call registration by the hall call from the hall call registration device and the car call from the car;
An operation control unit for raising and lowering the car in the hoistway according to a call registered by the call registration control unit;
A mode switching unit that switches the operation mode of the car that the operation control unit travels between the normal operation mode and the evacuation operation mode, and outputs an operation mode switching command;
A fire detector for notifying this mode switching unit of a fire occurrence signal,
An operation for receiving the operation mode switching command output by the mode switching unit in response to the fire occurrence signal notified by the fire detector, and detecting an operation to the button of the hall call registration device of each floor in the evacuation operation mode A detector,
The operation detection unit detects that a signal indicating that the button has been pressed is continuously input from any one of the hall call registration devices for a certain period of time, and the call registration control unit receives the hall call An elevator that does not respond to a registration request for the hall call from a registration device.   The elevator according to claim 1, wherein the operation detection unit performs detection based on a pattern of a change in the waveform of the signal within a predetermined detection period.   In the detection period, the operation detection unit performs detection based on a period in which the high of the waveform continues, a period in which the low of the waveform continues, and a predetermined waveform duration threshold. The elevator according to claim 1 or claim 2.   The operation detection unit temporarily registers the hall call registration, and if the temporarily registered signal is normal, treats the temporarily registered hall call as a regular call registration, and if the signal is abnormal, The elevator according to any one of claims 1 to 3, wherein the temporarily registered hall call is discarded.   The elevator according to claim 4, wherein the operation detection unit detects that the voltage level of the signal is a constant value during a preset period registered in advance.

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