Disaster prevention cabinet for elevator

Abstract

Provided is a disaster prevention cabinet for an elevator. When an abnormality of an elevator is detected by an abnormality detection part of an elevator monitoring device, an existing disaster prevention cabinet for the elevator receives an unlocking signal based on an abnormality detection signal, and an opening and closing door is changed from a locked state to an unlocked state. An existing disaster prevention cabinet for an elevator has the problem that in order to unlock a locked opening and closing door, an unlocking signal from the elevator needs to be input. The disaster prevention cabinet for an elevator according to the present invention is provided in a car, has an opening / closing door, and accommodates emergency articles, the disaster prevention cabinet for an elevator comprising: an electronic lock for locking and unlocking the opening / closing door; a microphone that picks up sound in the car; a storage unit that stores identification sounds emitted from the inside of the car during a predetermined operation; and a control unit that causes the electronic lock to transition from a locked state to an unlocked state when it is determined that the sound picked up by the microphone matches the recognition sound stored in the storage unit.

Description

Technical Field

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

[0002] When an abnormality 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 door from a locked state to an unlocked state (eg, Patent Document 1).

[0003] Prior art literature

[0004] Patent Document 1: Japanese Patent Application Laid-Open No. 2020-152550 Summary of the Invention

[0005] Conventional disaster prevention cabinets for elevators have a problem in that an unlocking signal from the elevator is required to unlock the locked door.

[0006] The present invention has been made to solve the above-mentioned problems, and its object is to enable an elevator disaster prevention cabinet to independently unlock a locked openable door without an unlocking signal from the outside.

[0007] The elevator disaster prevention cabinet of the present invention is arranged in the car, has an opening and closing door and stores emergency supplies, wherein the elevator disaster prevention cabinet is equipped with: an electronic lock, which performs either locking or unlocking of the opening and closing door; a microphone, which picks up sounds in the car; a storage unit, which stores identification sounds emitted in the car during specified operations; and a control unit, which changes the electronic lock from a locked state to an unlocked state when it is determined that the sound picked up by the microphone is consistent with the identification sound stored in the storage unit.

[0008] Effects of the Invention

[0009] According to the present invention, the elevator disaster prevention cabinet can independently unlock the locked openable door without an unlocking signal from the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is an overall structural diagram of an elevator according to Embodiment 1.

[0011] Figure 2 This is a diagram showing the installation of the disaster prevention cabinet in the car according to the first embodiment.

[0012] Figure 3 This is a block diagram of the disaster prevention cabinet according to the first embodiment.

[0013] Figure 4 This is a flowchart of the disaster prevention cabinet in embodiment 1.

[0014] Figure 5 This is a block diagram of a disaster prevention cabinet according to the second embodiment.

[0015] Label Description

[0016] 1: Car; 2: Main rope; 3: Counterweight; 5: Traction machine; 6: Control panel; 11: Disaster prevention cabinet; 12: Opening and closing door; 21: Control unit; 22: Sound pickup unit; 23: Setting unit; 24: Storage unit; 25: Electronic lock; 26: Display unit; 27: Sound generator; 31: Power supply unit. DETAILED DESCRIPTION

[0017] Implementation method 1.

[0018] use Figure 1 An overall structural diagram of the elevator according to the first embodiment will be described. Figure 1 This is a diagram of the overall structure of an elevator equipped with a disaster prevention cabinet.

[0019] The elevator includes a car 1 , main ropes 2 , a counterweight 3 , a hoisting machine 5 , and a control panel 6 .

[0020] One end of the main rope 2 is connected to the upper end of the car 1, and the other end of the main rope 2 is connected to the counterweight 3. The hoisting machine 5 is installed in the middle of the main rope 2 so as to raise and lower the car 1 and the counterweight 3 in opposite directions.

[0021] The control panel 6 drives the hoisting machine 5 and controls the raising and lowering of the car 1 .

[0022] use Figure 2 A diagram illustrating the installation of the disaster prevention cabinet in the car according to the first embodiment will be described. Figure 2 This is a diagram showing the installation state of the disaster prevention cabinet in the car.

[0023] The disaster prevention cabinet 11 is installed in the car 1 at a position that does not obstruct the passengers in the car 1. The position that does not obstruct the passengers is the four corners of the car 1, the left and right walls, the inner wall, etc.

[0024] The disaster cabinet 11 is provided with an opening and closing door 12 , and emergency supplies (not shown) are stored inside the disaster cabinet 11 .

[0025] The disaster prevention cabinet 11 unlocks or locks the door 12 by an electronic lock described later.

[0026] use Figure 3 A block diagram of the disaster prevention cabinet according to the first embodiment will be described. Figure 3 This is a block diagram of the disaster prevention cabinet according to the first embodiment.

[0027] The disaster prevention cabinet 11 includes a control unit 21 , a sound pickup unit 22 , a setting unit 23 , a storage unit 24 , an electronic lock 25 , a display unit 26 , and a sound generator 27 .

[0028] The control unit 21 of the disaster prevention cabinet 11 acquires the sound signal collected by the sound collecting unit 22 inside the car 1, analyzes the sound signal, and converts it into data.

[0029] Here, the sound pickup unit 22 is defined as a microphone.

[0030] 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.

[0031] Here, the matching reference data for matching determination is defined as the recognition sound.

[0032] The storage unit 24 may be any device that stores data and enables reading of the stored data using SRAM (Static Random Access Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), or the like.

[0033] The control unit 21 acquires a setting change signal related to a setting change request inputted by a maintenance person or an elevator operator via the setting unit 23 .

[0034] The setting unit 23 may be any unit that allows a person to perform a selection operation using an input device such as a switch, a button, or a touch panel, and transmits the contents of an operation instruction of the selection operation.

[0035] The electronic lock 25 unlocks the openable door 12 in response to an unlocking instruction from the control unit 21 .

[0036] The display unit 26 displays the status of the disaster prevention cabinet 11 and / or the input status of the display setting unit 23 to the passengers in the car 1 based on the display command from the control unit 21 .

[0037] The sound generating unit 27 notifies the passengers in the car 1 of the state of the disaster prevention cabinet 11 and / or the input state of the notification setting unit 23 in response to the sound generating command from the control unit 21 .

[0038] Next, each functional block will be described in detail.

[0039] The control unit 21 analyzes and digitizes the peak value, signal strength, dB value (relative magnitude to a specific reference), etc. of each frequency component of the sound signal. The control unit 21 causes the storage unit 24 to store the analyzed data of the sound signal.

[0040] The matching reference data for matching determination stored in the storage unit 24 is data that serves as a reference for determining whether or not the data matches the analysis data of the sound signal picked up from inside the car 1. To be used for unlocking determination of the door 12, the analysis data of the sound signal and the matching reference data for matching determination have the same data structure, including peak values, signal strength, and dB values ​​for each frequency component.

[0041] The following data is considered as the matching reference data for matching determination stored in the storage unit 24 .

[0042] For example, the matching reference data used for matching determination uses an intercom calling sound, which is used by a passenger trapped inside the car 1 to notify the outside of the car 1. By using the intercom calling sound as the sound used in the matching reference data, the control unit 21 unlocks the door 12 in response to the intercom calling sound, allowing passengers trapped inside the car 1 to use emergency supplies stored in the disaster prevention cabinet 11.

[0043] By setting the matching reference data for matching judgment to the intercom contact tone of the intercom installed inside the car 1 called from the elevator monitoring center, the control unit 21 unlocks the door 12 through the intercom contact tone, and passengers can use the emergency supplies stored in the disaster prevention cabinet 11.

[0044] The elevator monitoring center sends an intercom contact tone to the elevator in the disaster area, and the control unit 21 unlocks the door 12 through the intercom contact tone. Passengers can use the emergency supplies stored in the disaster prevention cabinet 11 without waiting for a rescue request from the passengers trapped inside the car 1.

[0045] Furthermore, in the event of a large-scale disaster, the elevator monitoring center does not wait for a rescue request from a passenger trapped inside the car 1, but instead makes a notification through an intercom communication tone.

[0046] In the notification by the intercom contact tone, a high-frequency sound that is inaudible to the passengers can also be used. By using a high-frequency sound that is inaudible to the passengers as the intercom contact tone, the passengers inside the car 1 will not be disturbed by the sound of the intercom contact tone from the elevator monitoring center, and anxiety can be reduced.

[0047] The setting change request input by the maintenance personnel or elevator manager to the setting unit 23 includes: a request for the control unit 21 to analyze the sound pickup signal, convert it into data, and store it; a request to check the unlocking action performed by manual operation of the electronic lock 25 set on the opening and closing door 12; and a request to add or update the analysis data of the sound pickup signal used when unlocking the electronic lock 25, etc., and a request to add analysis data, update analysis data, etc.

[0048] use Figure 4A flowchart illustrating the disaster prevention cabinet according to the first embodiment will be described. Figure 4 This is a flowchart of the disaster prevention cabinet in embodiment 1.

[0049] In step S1 , the control unit 21 of the disaster prevention cabinet 11 acquires a sound pickup signal picked up by the sound pickup unit 22 inside the car 1 .

[0050] In step S2, the control unit 21 determines whether or not the sound inside the car 1 is picked up.

[0051] When the control unit 21 picks up a sound from inside the car 1, the process proceeds to step S3 ("Yes" in step S2).

[0052] On the other hand, when no sound is picked up from inside the car 1, the process ends.

[0053] In step S3, the control unit 21 acquires the sound signal collected by the sound collecting unit 22 inside the car 1, analyzes the sound signal, and converts it into data.

[0054] In step S4, the control unit 21 determines whether or not the analysis data obtained by picking up the sound inside the car 1 matches the matching reference data for matching determination.

[0055] When the analysis data picked up from the inside of the car 1 matches the matching reference data, the control unit 21 proceeds to step S5 ("Yes" in step S4).

[0056] On the other hand, when the analysis data picked up from the inside of the car 1 does not match the matching reference data, the process ends.

[0057] In step S5 , the control unit 21 sends an unlock command to the electronic lock 25 to unlock the door 12 .

[0058] In step S6, the control unit 21 sends a voice command to the voice emitting unit 27 to notify the passengers in the car 1 that the opening and closing door 12 of the disaster prevention cabinet 11 has been unlocked.

[0059] As described above, the disaster prevention cabinet of the present embodiment 1 has the effect that the disaster prevention cabinet for elevators can independently unlock the locked opening and closing doors without an unlocking signal from the outside.

[0060] Furthermore, not only when a disaster prevention cabinet is newly installed, but also when it is installed later, there is no need to add wiring for receiving signals from the outside when an elevator abnormality is detected.

[0061] Implementation method 2.

[0062] use Figure 5 A block diagram of the disaster prevention cabinet according to the second embodiment will be described. Figure 5This is a block diagram of a disaster prevention cabinet according to the second embodiment.

[0063] In addition, Figure 5 In the description of the embodiment 1, the parts corresponding to the block diagram of the disaster prevention cabinet are marked with Figure 3 The same reference numerals are used and their descriptions are omitted.

[0064] The disaster prevention cabinet 11 includes a power supply unit 31 .

[0065] The power supply unit 31 supplies power to each functional block of the disaster prevention cabinet 11 using at least one of a dry cell battery, a secondary battery, a solar panel, and the like.

[0066] For example, the power generated by the solar panel operates the disaster cabinet 11 and the remaining power is stored in the secondary battery. When the power generated by the solar panel decreases, the power stored in the secondary battery can be supplied to each functional block of the disaster cabinet 11.

[0067] The power supply unit 31 has multiple power supply methods, which can supply stable power to each functional block of the disaster prevention cabinet 11. In addition, if any of the dry cell battery, secondary battery, and solar panel fails, the power supply unit 31 can also ensure redundancy based on multiple power supply units.

[0068] The power supply unit 31 outputs the charge state of the dry cell or secondary battery, or the power state of the solar panel. The control unit 21 obtains the power state from the power supply unit 31 and displays it on the display unit 26 or notifies it on the sound unit 27.

[0069] In addition, the control unit 21 obtains the remaining power of the dry battery, the storage capacity of the secondary battery, the time-dependent reduction in the power generation capacity of the solar panel, etc. based on the power status from the power supply unit 31, and displays it on the display unit 26 or notifies it on the sound unit 27.

[0070] The intercom communication sound of the intercom installed inside the car 1 called from the elevator monitoring center may also include a command sound for issuing instructions to the disaster prevention cabinet 11, which is different from the sound for unlocking the door 12. The control unit 21 thereby obtains the power status of the power supply unit 31 and notifies the sound unit 27 of the power status.

[0071] The monitoring center of the elevator can confirm the power status notified from the sound generating unit 27 and instruct the maintenance personnel to replace the dry cell batteries or inspect the secondary batteries and solar panels.

[0072] As described above, the disaster prevention cabinet of the second embodiment has the effect that the elevator disaster prevention cabinet can independently unlock the locked door without receiving an unlock signal from the elevator or receiving power supply.

[0073] The elevator disaster prevention cabinet of the present invention constructed as described above is arranged in the car 1, has an opening and closing door 12 and stores emergency supplies, and is characterized in that the elevator disaster prevention cabinet has: an electronic lock 25, which performs either locking or unlocking of the opening and closing door 12; a microphone, which picks up sounds in the car; a storage unit 24, which stores identification sounds emitted in the car during prescribed operations; and a control unit 21, which changes the electronic lock 25 from a locked state to an unlocked state when it is determined that the sound picked up by the microphone is consistent with the identification sound stored in the storage unit 24.

[0074] Thus, the elevator disaster prevention cabinet can independently unlock locked doors without an external unlocking signal. Furthermore, not only when a new disaster prevention cabinet is installed, but also when it is installed later, there is no need for additional wiring to receive signals from the outside when an elevator abnormality is detected.

[0075] Furthermore, the elevator disaster prevention cabinet of the present invention is characterized in that it is provided with a pattern of the identification sound stored in the storage unit 24 that can be changed using a microphone.

[0076] Thus, the elevator disaster prevention cabinet has the effect of reducing the reverberation of internal sound and the influence of sound quality according to the specifications of the car 1.

[0077] Furthermore, the elevator disaster prevention cabinet of the present invention is characterized in that it includes a sounding unit 27 for making a notification to the inside of the car.

[0078] This provides the following effects: passengers in the car know that they can use the elevator disaster prevention cabinet, and maintenance workers can easily confirm the change status of the unlocking condition or locking condition of the door 12.

[0079] The elevator disaster prevention cabinet of the present invention is characterized by comprising: a sounding unit 27 for notifying the inside of the car; and a power supply unit 31 for supplying power to the electronic lock 25 , microphone, storage unit 24 , control unit 21 and sounding unit 27 .

[0080] This provides an effect of being able to independently unlock the locked door without receiving an unlock signal from the elevator or receiving power supply, and without receiving an unlock signal from the outside.

Claims

1. A disaster prevention cabinet for an elevator, which is installed in the elevator car, has an opening and closing door and stores emergency supplies, wherein: The elevator disaster prevention cabinet includes: An electronic lock that performs either locking or unlocking of the door; a microphone for picking up sounds within the car; a storage unit storing an identification sound emitted in the car during a predetermined operation; as well as The control unit switches the electronic lock from the locked state to the unlocked state when determining that the sound picked up by the microphone matches the identification sound stored in the storage unit.

2. The elevator disaster prevention cabinet according to claim 1, wherein: The elevator disaster prevention cabinet has a function of changing the identification sound stored in the storage unit using the microphone.

3. The elevator disaster prevention cabinet according to claim 1 or 2, wherein: The elevator disaster prevention cabinet includes a sounding unit for making a notification to the inside of the car.

4. The elevator disaster prevention cabinet according to claim 1 or 2, wherein: The elevator disaster prevention cabinet includes: a sound emitting unit for making a notification to the inside of the car; and A power supply unit supplies power to the electronic lock, the microphone, the storage unit, the control unit, and the sound generating unit.

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