Disaster cabinet for elevator

Abstract

To provide a disaster cabinet for an elevator capable of unlocking a locked door by itself without an external unlocking signal.SOLUTION: A disaster cabinet 11 for an elevator is installed inside the car, has an opening / closing door, and stores emergency supplies, and is equipped with an electric lock 25 that either locks or unlocks the opening / closing door 12, a microphone that collects sounds inside the car, a memory unit 24 that stores an identification sound that is emitted inside the car during a predetermined operation, and a control unit 21 that switches the electric lock 25 from a locked state to an unlocked state when it is determined that the sound collected by the microphone matches the identification sound stored in the memory unit.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a disaster prevention cabinet for an elevator that is used when elevator passengers are trapped inside the car due to an earthquake or the like. [Background technology]

[0002] When an abnormality in the elevator is detected by the abnormality detection unit of the elevator monitoring device, a conventional elevator disaster prevention cabinet receives an unlocking signal based on the abnormality detection signal and changes the opening and closing doors from a locked state to an unlocked state (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-152550 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional disaster prevention cabinets for elevators have a problem in that an unlocking signal must be input from the elevator to unlock the locked doors.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide an elevator disaster prevention cabinet that can unlock a locked opening and closing door independently without an external unlocking signal. [Means for solving the problem]

[0006] The disaster prevention cabinet for an elevator according to the present disclosure is a disaster prevention cabinet for an elevator that is installed inside the car, has an opening and closing door, and stores emergency supplies, and is characterized by comprising an electric lock that either locks or unlocks the opening and closing door, a microphone that collects sounds inside the car, a memory unit that stores an identification sound that is emitted inside the car when a predetermined operation is performed, and a control unit that transitions the electric lock from a locked state to an unlocked state when it is determined that the sound collected by the microphone matches the identification sound stored in the memory unit. [Effects of the Invention]

[0007] According to the present disclosure, the disaster prevention cabinet for an elevator has the effect of enabling a locked door to be unlocked independently without an external unlocking signal. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an overall configuration diagram of an elevator according to a first embodiment. [Figure 2] FIG. 2 is a diagram showing the installation of the disaster prevention cabinet in the car in the first embodiment. [Figure 3] FIG. 2 is a block diagram of a disaster prevention cabinet according to the first embodiment. [Figure 4] 4 is a flowchart of the disaster prevention cabinet in the first embodiment. [Figure 5] FIG. 10 is a block diagram of a disaster prevention cabinet according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Embodiment 1 An overall configuration diagram of an elevator in the first embodiment will be described with reference to Fig. 1. Fig. 1 is an overall configuration diagram of an elevator in which a disaster prevention cabinet is installed.

[0010] The elevator comprises a car 1, a main rope 2, a counterweight 3, a hoist 5, and a control panel 6. One end of a main rope 2 is connected to the upper end of the car 1, and a counterweight 3 is connected to the other end of the main rope 2. A hoist 5 is installed in the middle of the main rope 2 so that the car 1 and the counterweight 3 rise and fall in opposite directions. The control panel 6 drives the hoisting machine 5 and controls the lifting and lowering of the car 1 .

[0011] An installation diagram of the disaster prevention cabinet in the car according to the first embodiment will be described with reference to Fig. 2. Fig. 2 is a diagram showing the installation state of the disaster prevention cabinet in the car.

[0012] The disaster prevention cabinet 11 is installed inside the car 1 at a position where it will not get in the way of passengers inside the car 1. The position where it will not get in the way of passengers is the four corners inside the car 1, inside the left and right walls, inside the back wall, etc. The disaster prevention cabinet 11 is provided with an openable door 12, and emergency supplies (not shown) are stored inside the disaster prevention cabinet 11. The disaster prevention cabinet 11 has an opening and closing door 12 that is locked or unlocked by an electric lock, which will be described later.

[0013] A block diagram of the disaster prevention cabinet according to the first embodiment will be described with reference to Fig. 3. Fig. 3 is a block diagram of the disaster prevention cabinet according to the first embodiment.

[0014] The disaster prevention cabinet 11 includes a control unit 21, a sound collection unit 22, a setting unit 23, a memory unit 24, an electric lock 25, a display unit 26, and a sound generation unit 27. The control unit 21 of the disaster prevention cabinet 11 acquires the collected sound signal collected inside the car 1 by the sound collecting unit 22, and analyzes the collected sound signal to convert it into data. Here, the sound collection unit 22 is defined as a microphone.

[0015] The storage unit 24 stores the control program of the control unit 21, and saves control calculation data, analysis data of the collected sound signal, and matching reference data for matching determination. Here, the matching reference data for matching judgment is defined as an identification sound.

[0016] The storage unit 24 may be any means capable of storing data and reading out the stored data, such as an SRAM (Static Random Access Memory) or an EEPROM (Electrically Erasable Programmable Read Only Memory).

[0017] The control unit 21 acquires a setting change signal relating to a setting change request input by a maintenance worker or elevator manager through the setting unit 23. The setting unit 23 may be any means that uses an input device such as a switch, button, or touch panel, and allows a person to select and operate it, and to send the operation command content selected and operated.

[0018] The electric lock 25 unlocks the opening and closing door 12 based on an unlock command from the control unit 21. The display unit 26 displays the state of the disaster prevention cabinet 11 to passengers in the car 1 and the input state of the setting unit 23 based on a display command from the control unit 21 . Based on a sound output command from the control unit 21, the sound output unit 27 notifies passengers in the car 1 of the state of the disaster prevention cabinet 11 and the input state of the setting unit 23.

[0019] Next, each functional block will be described in detail. The control unit 21 converts the collected signal into data by converting the peak value, signal intensity, dB value (relative magnitude to a specific reference) and the like of each frequency component of the collected signal into analysis data. The control unit 21 stores the analysis data of the collected signal in the memory unit 24.

[0020] The matching reference data for matching judgment stored in the memory unit 24 is data that serves as a standard for judging whether or not it matches the analysis data of the sound collection signal collected from inside the car 1. The analysis data of the sound collection signal and the matching reference data for matching judgment have the same data structure, such as the peak value, signal strength, and dB value for each frequency component, in order to be used to judge whether the opening and closing door 12 is unlocked.

[0021] The matching reference data for matching determination stored in the storage unit 24 may include the following data. For example, the matching reference data for matching determination uses an intercom call sound that a passenger trapped inside car 1 uses to notify the outside of car 1. By using the intercom call sound as the sound used for the matching reference data, control unit 21 can unlock opening / closing door 12 by the intercom call sound, and passengers can use emergency supplies stored in disaster prevention cabinet 11 when they are trapped inside car 1.

[0022] The matching reference data for matching judgment is an intercom contact sound from the elevator monitoring center to an intercom installed inside the car 1, and the control unit 21 unlocks the opening and closing door 12 by the intercom contact sound, allowing passengers to use emergency supplies stored in the disaster prevention cabinet 11. The elevator monitoring center issues an intercom call sound to elevators in the disaster area, and a control unit 21 unlocks the opening and closing door 12 by the intercom call sound, and passengers trapped inside the car 1 can use emergency supplies stored in a disaster prevention cabinet 11 without waiting for a rescue request from the passengers. In the event of a widespread disaster, the elevator monitoring center will issue an alert by an intercom call without waiting for a rescue request from passengers trapped inside the car 1. The intercom notification sound may be a high frequency sound that cannot be heard by passengers. By using a high frequency sound that cannot be heard by passengers, passengers inside car 1 will not be surprised by the intercom notification sound from the elevator monitoring center, and anxiety can be reduced.

[0023] The setting change requests input to the setting unit 23 by the maintenance staff or elevator manager include a request for the control unit 21 to analyze the collected sound signal, convert it into data, and store it, a request to check the operation of manually unlocking the electric lock 25 installed on the opening and closing door 12, a request to add or update analysis data such as adding or updating analysis data of the collected sound signal used to operate the electric lock 25 to unlock, and the like.

[0024] A flowchart of the disaster prevention cabinet according to the first embodiment will be described with reference to Fig. 4. Fig. 4 is a flowchart of the disaster prevention cabinet according to the first embodiment.

[0025] In step S1, the control unit 21 of the disaster prevention cabinet 11 acquires a collected sound signal collected by the sound collection unit 22 inside the car 1.

[0026] In step S2, the control unit 21 determines whether or not the sound inside the car 1 has been collected. If sound is collected from inside the car 1, the control unit 21 proceeds to step S3 (YES in step S2). On the other hand, if sound cannot be collected from inside the car 1, the process ends.

[0027] In step S3, the control unit 21 acquires a collected sound signal collected inside the car 1 by the sound collection unit 22, and analyzes the collected sound signal to generate data.

[0028] In step S4, the control unit 21 determines whether or not the analysis data obtained by collecting sounds inside the car 1 matches the matching reference data for matching determination. If the analysis data collected from inside the car 1 matches the matching reference data, the control unit 21 proceeds to step S5 (YES in step S4). On the other hand, if the analysis data collected from inside the car 1 does not match the matching reference data, the process ends.

[0029] In step S5, the control unit 21 sends an unlock command to the electric lock 25 to put the door 12 into an unlocked state. In step S6, the control unit 21 sends a sound output command to the sound output unit 27 to notify the passengers in the car 1 that the door 12 of the disaster prevention cabinet 11 has been unlocked.

[0030] As described above, the disaster prevention cabinet according to the first embodiment of the present invention is an elevator disaster prevention cabinet that has the effect of making it possible to unlock a locked door by itself without an external unlocking signal. In addition, not only when installing a new disaster prevention cabinet, but also when installing one later, there is no need for additional wiring to receive signals from outside when an elevator abnormality is detected.

[0031] Embodiment 2 A block diagram of the disaster prevention cabinet according to the second embodiment will be described with reference to Fig. 5. Fig. 5 is a block diagram of the disaster prevention cabinet according to the second embodiment. In the description of FIG. 5, the parts corresponding to the block diagram of the disaster prevention cabinet according to the first embodiment are given the same reference numerals as in FIG. 3, and the description thereof will be omitted.

[0032] The disaster prevention cabinet 11 includes a power supply unit 31 . The power supply unit 31 uses at least one of a dry cell battery, a secondary battery, a solar panel, etc., and supplies power to each block of the disaster prevention cabinet 11. For example, the power generated by the solar panel operates the disaster prevention cabinet 11, and surplus power is stored in a secondary battery. When the power generated by the solar panel becomes low, the power stored in the secondary battery can be used to supply power to each block of the disaster prevention cabinet 11. The power supply unit 31 is provided with multiple power supply methods, thereby enabling stable power supply to each block of the disaster prevention cabinet 11. Furthermore, even if one of the dry cell battery, secondary battery, or solar panel fails, the power supply unit 31 can ensure redundancy with multiple power supply means.

[0033] The power supply unit 31 outputs the charge status of the dry cell battery or secondary battery, or the status of the amount of power generated by the solar panel, and the control unit 21 acquires the power status of the power from the power supply unit 31 and displays it on the display unit 26 or notifies the sound output unit 27. In addition, the control unit 21 obtains information such as the remaining amount of power in the dry cell, the storage capacity of the secondary battery, and the deterioration over time of the power generation capacity of the solar panel based on the power status from the power supply unit 31, and displays this information on the display unit 26 or notifies the sound output unit 27.

[0034] In addition to the sound for unlocking the door 12, the intercom communication sound from the intercom installed inside the car 1 from the elevator monitoring center may also include a command sound to issue a command to the disaster prevention cabinet 11, which allows the control unit 21 to obtain the power status of the power supply unit 31 and have the sound generator 27 notify the power status. The elevator monitoring center can check the power status reported by the sound output unit 27 and instruct maintenance personnel to replace the dry batteries and inspect the secondary batteries and solar panels.

[0035] As described above, the disaster prevention cabinet of this embodiment 2 has the advantage that the disaster prevention cabinet for elevators can unlock locked doors by itself without receiving an unlocking signal or power supply from the elevator.

[0036] The disaster prevention cabinet for an elevator of the present disclosure configured as described above is a disaster prevention cabinet for an elevator that is installed inside the car 1, has an opening / closing door 12, and stores emergency supplies, and is characterized by comprising an electric lock 25 that either locks or unlocks the opening / closing door 12, a microphone that collects sounds inside the car, a memory unit 24 that stores an identification sound that is emitted inside the car during a specified operation, and a control unit 21 that transitions the electric lock 25 from a locked state to an unlocked state when it is determined that the sound collected by the microphone matches the identification sound stored in the memory unit 24.

[0037] This allows the elevator disaster prevention cabinet to unlock locked doors independently without an external unlocking signal. This also eliminates the need for additional wiring to receive external signals when an elevator abnormality is detected, not only when a new disaster prevention cabinet is installed, but also when a new cabinet is installed later.

[0038] Furthermore, the disaster prevention cabinet for elevators of the present disclosure is characterized in that the identification sound stored in the memory unit 24 has a mode that can be changed using a microphone.

[0039] As a result, the elevator disaster prevention cabinet has the effect of reducing the effects of internal sound reverberation and sound quality according to the specifications of the car 1.

[0040] The disaster prevention cabinet for elevators of the present disclosure is also characterized by including a sound generating unit 27 that issues an alarm inside the car.

[0041] This has the effect of letting passengers in the car know that the elevator disaster prevention cabinet is now available for use, and allowing maintenance workers to easily check the status of changes to the unlocking or locking conditions of the door 12.

[0042] In addition, the disaster prevention cabinet for elevators disclosed herein is characterized by having a sound generating unit 27 that issues an alarm inside the car, and a power supply unit 31 that supplies power to the electric lock 25, microphone, memory unit 24, control unit 21, and sound generating unit 27.

[0043] This provides the effect of making it possible to unlock the locked door independently without receiving an unlock signal from the outside, without receiving an unlock signal or power supply from the elevator. [Explanation of symbols]

[0044] 1 cage, 2 main rope, 3 counterweight, 5 hoist, 6 control panel, 11 disaster prevention cabinet, 12 opening / closing door, 21 control unit, 22 sound collection unit, 23 setting unit, 24 memory unit, 25 electric lock, 26 display unit, 27 sound generation unit, 31 power supply unit

Claims

1. A disaster prevention cabinet for an elevator that is installed inside the car, has an opening and closing door, and stores emergency supplies, and is characterized by comprising: an electric lock that either locks or unlocks the opening and closing door; a microphone that collects sounds inside the car; a memory unit that stores an identification sound that is emitted inside the car when a predetermined operation is performed; and a control unit that changes the electric lock from a locked state to an unlocked state when it is determined that the sound collected by the microphone matches the identification sound stored in the memory unit.

2. 2. The disaster prevention cabinet for an elevator according to claim 1, wherein the identification sound stored in the storage unit can be changed using the microphone.

3. 3. The disaster prevention cabinet for an elevator according to claim 1, further comprising a sound generating unit for making an alarm inside the car.

4. 3. A disaster prevention cabinet for an elevator as described in claim 1 or 2, comprising: a sound generating unit that issues an alarm inside the car; and a power supply unit that supplies power to the electric lock, the microphone, the memory unit, the control unit, and the sound generating unit.

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