CN111498653A - Elevator escape door control device and method based on UPS (uninterrupted Power supply) - Google Patents
Elevator escape door control device and method based on UPS (uninterrupted Power supply) Download PDFInfo
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- CN111498653A CN111498653A CN202010500503.0A CN202010500503A CN111498653A CN 111498653 A CN111498653 A CN 111498653A CN 202010500503 A CN202010500503 A CN 202010500503A CN 111498653 A CN111498653 A CN 111498653A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 50
- 239000000725 suspension Substances 0.000 claims abstract description 26
- 230000001960 triggered effect Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/06—Door or gate operation of sliding doors
- B66B13/08—Door or gate operation of sliding doors guided for horizontal movement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
- B66B11/0226—Constructional features, e.g. walls assembly, decorative panels, comfort equipment, thermal or sound insulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/02—Door or gate operation
- B66B13/14—Control systems or devices
- B66B13/143—Control systems or devices electrical
- B66B13/146—Control systems or devices electrical method or algorithm for controlling doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B13/00—Doors, gates, or other apparatus controlling access to, or exit from, cages or lift well landings
- B66B13/24—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers
- B66B13/26—Safety devices in passenger lifts, not otherwise provided for, for preventing trapping of passengers between closing doors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0018—Devices monitoring the operating condition of the elevator system
- B66B5/0031—Devices monitoring the operating condition of the elevator system for safety reasons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/027—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions to permit passengers to leave an elevator car in case of failure, e.g. moving the car to a reference floor or unlocking the door
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
The invention belongs to the technical field of engineering machinery, and particularly relates to a door control device for elevator escape based on a UPS (uninterrupted power supply), which comprises a cage, a switch door and a brake device, wherein the switch door and the brake device are arranged on the left side wall and the right side wall of the cage, a driving device is arranged on the upper side of the cage, tracks are arranged at the bottoms of the left side wall and the right side wall of the cage, and the control method of the door control device for elevator escape based on the UPS comprises the following specific steps: s1: pressing an emergency rescue switch in the cage from the inside of the cage, S2: detecting the external condition through a landing door detection switch and a guardrail door detection switch to confirm whether the suspension cage is in the flat-bed position; s3: whether the cage is in the flat bed position or not is confirmed through the landing door detection switch and the guardrail door detection switch, the UPS uninterrupted power supply assembly is combined for power supply, the emergency rescue switch operation and the safety edge sensor in the cage trigger the rescue door opening, and a comprehensive scheme of safety, timeliness, economy and efficiency is considered.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a door control device and a door control method for elevator escape based on a UPS.
Background
Due to the increasing manpower costs in recent years, construction elevators, which are most commonly used in building construction, are being developed towards automatic leveling and unmanned driving. Along with the improvement of the automation degree of the construction elevator and the requirement of safe production, the door of the elevator cage is also upgraded from the original manual door opening mode to the automatic door opening and closing mode. However, from the condition of investigation on construction sites at present, most of construction elevators with automatic doors have the following problems:
in an emergency state, when a power supply failure occurs. Requiring an external rescuer to relieve the difficulties. In the rescue process, rescue workers need to reach the top of the lift car through the guide rail frame, and the lift cage is manually released to drive the motor to brake to find the flat bed position. And then manually releasing the brake of the door operator to realize door opening rescue.
(1) In an emergency state, after the power supply of the lift car is cut off, the single-door and double-door machines cannot be automatically powered on and released. Personnel in the cage cannot save themselves, and only can wait for rescue, thereby wasting precious rescue time.
(2) In the absolute majority of cases, the cages are parked in flat-bed position areas. In an emergency state, after the power supply of the lift car is disconnected, personnel in the cage still cannot save themselves.
(3) As long as the cage is trapped, external rescue workers are required to climb the guide rail frame for real-time rescue, and the risk of climbing operation exists.
Disclosure of Invention
The invention aims to provide a door control device and a door control method for elevator escape based on a UPS (uninterrupted power supply), which aim to solve the problem that in an emergency state provided by the background art, a single door and a double door machine cannot be automatically powered on and released after power supply of a car is cut off. Personnel in the cage cannot save themselves, and only can wait for rescue, thereby wasting precious rescue time, and under the most conditions, the cage is stopped in a flat-bed position area. Under emergency, after the car power supply disconnection, personnel still can't save oneself in the cage, as long as take place the trapping incident of cage, all need outside rescue personnel to climb the real-time rescue of guide rail frame, have the problem of the risk of the operation of ascending a height.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a lift gate control device for escaping based on UPS uninterrupted power source, includes the cage, sets up switch door and brake equipment on lateral wall about the cage, the upside of cage is provided with drive arrangement, the lateral wall bottom all is provided with the track about the cage, the bottom of switch door is located the track, brake equipment sets up on the track, lateral wall upside transverse connection has the slide bar about the cage, the outer wall both ends of slide bar are all installed on the lateral wall of cage through the mount pad, horizontal sliding sleeve has been cup jointed on the outer wall of slide bar, horizontal sliding sleeve and slide bar looks adaptation, the bottom of horizontal sliding sleeve and the upper end fixed connection of switch door, be provided with safe border sensor on the switch door side, be provided with layer door detection switch and guardrail door detection switch on the lateral wall about the cage respectively, the top of cage is provided with UPS uninterrupted power supply subassembly, the UPS uninterrupted power supply assembly is electrically connected with the landing door detection switch, the guardrail door detection switch, the safety edge sensor, the brake device and the emergency rescue switch in the cage respectively through wires.
Preferably, the front side wall and the rear side wall of the suspension cage are uniformly provided with vent holes.
Preferably, the bottom of the switch door is connected with a supporting roller through a rotating shaft, and the supporting roller is supported in the track.
Preferably, a travel switch is arranged on the side edge of the suspension cage, and the position of the travel switch corresponds to the position of opening and closing the door.
A control method of a door control device for elevator escape based on a UPS comprises the following steps:
s1: an emergency rescue switch in the cage is pressed from the interior of the cage, and after the emergency rescue switch in the cage is triggered, a driving system of the cage cuts off the power supply of a driving device and locks the driving device, so that the cage can be suspended without sudden drop;
s2: detecting the external condition through a landing door detection switch and a guardrail door detection switch to confirm whether the suspension cage is in the flat-bed position;
if the landing door detection switch and the guardrail door detection switch are matched to detect that the cage is in a first-floor state, the brake device unlocks the opening and closing door, the emergency rescue switch in the cage controls the opening and closing door from the safety edge sensors at two sides of the cage, the opening and closing door is opened by sliding towards the side edge, and trapped people can come out of the two opening and closing doors;
if the landing door detection switch and the guardrail door detection switch are matched to detect that the cage is in a non-first-floor state, the emergency rescue switch in the cage controls the brake device facing one side of the building to unlock from the inside, the opening and closing door slides towards the side edge, so that the opening and closing door is opened, and trapped people can come out from the opening and closing door facing one side of the building;
s3: confirm whether the cage is in the flat bed position through layer door detection switch, guardrail door detection switch:
if the switch door is in the flat position, the switch door is allowed to be opened;
if the cage is in a non-flat position, the cage triggers the safety edge sensor from the outside to open the opening/closing door, so that the trapped persons in the cage are rescued.
Compared with the prior art, the invention has the beneficial effects that:
the UPS is combined with an uninterruptible power supply assembly to supply power, an emergency rescue switch in the cage is operated, and a safety edge sensor triggers rescue opening of the door, so that a comprehensive scheme which is safe, timely, economical and efficient is considered.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic left side view of the structure of FIG. 1 according to the present invention;
FIG. 3 is a schematic view of the internal structure of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the present invention in use;
FIG. 5 is a flow chart of a self-rescue control method in the suspension cage of the invention;
fig. 6 is a flow chart of the rescue control method outside the cage of the invention.
In the figure: the device comprises a suspension cage 1, a driving device 2, a door 3, a track 4, a support roller 5, an emergency rescue switch 6 in the cage, a sliding rod 7, a transverse sliding sleeve 8, a UPS component 9, a door 10 detection switch, a guardrail door 11 detection switch and a safety edge sensor 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-4, the present invention provides a technical solution: a door control device for elevator escape based on UPS comprises a suspension cage 1, a switch door 3 and a brake device, wherein the switch door 3 and the brake device are arranged on the left side wall and the right side wall of the suspension cage 1, and a driving device 2 is arranged on the upper side of the suspension cage 1;
the driving device 2 consists of a hoisting mechanism and a sling which is externally connected with the hoisting mechanism and drives the suspension cage 1 to move, and only the sling part is shown in the figure;
the bottom of the left side wall and the bottom of the right side wall of the cage 1 are both provided with a track 4, the bottom of the switch door 3 is positioned in the track 4, and the brake device is arranged on the track 4;
the switch door 3 can slide in the track 4, and the switch door 3 cannot be separated from the track 4, the brake device adopts an electromagnetic control brake locking mechanism (any brake equipment on the existing elevator is adopted, and details are not described in the prior art), and when the brake device is started, the brake device locks the switch door 3, so that the switch door 3 cannot continue to move;
the upper sides of the left side wall and the right side wall of the suspension cage 1 are transversely connected with sliding rods 7, two ends of the outer wall of each sliding rod 7 are installed on the side wall of the suspension cage 1 through installation seats, the outer wall of each sliding rod 7 is sleeved with a transverse sliding sleeve 8, each transverse sliding sleeve 8 is matched with each sliding rod 7, and the bottom end of each transverse sliding sleeve 8 is fixedly connected with the upper end of the switch door 3;
the switch door 3 slides on the sliding rod 7 through the transverse sliding sleeve 8, and the transverse movement of the transverse sliding sleeve 8 drives the switch door 3 to open and close, so that the switch action of the switch door 3 is smooth;
a safety edge sensor 12 is arranged on the side edge of the opening and closing door 3;
the principle of safe border sensor 12 is similar with the car window and prevents pressing from both sides the function, and the model of safe border sensor 12 here is SAKADY ST-35, and the material is EPDM, and when someone was through switch door 3 department, safe border sensor 12 control switch door 3 can not close the door, and can trigger safe border sensor 12 from the outside of cage 1 and make switch door 3 open (if put the hand in safe border sensor 12 department for safe border sensor 12 senses human existence and thus open switch door 3).
The side wall about cage 1 is provided with layer door detection switch 10 and guardrail door detection switch 11 on respectively, and the top of cage 1 is provided with UPS uninterrupted power supply subassembly 9, is provided with emergency rescue switch 6 in the cage on the inner wall of cage 1, and UPS uninterrupted power supply subassembly 9 passes through the wire respectively with layer door detection switch 10, guardrail door detection switch 11, safe border sensor 12, brake equipment and cage in emergency rescue switch 6 electric connection.
The brake device is to opening 3 locks of closing the door after the outage at normal use, and the circular telegram can make brake device open 3 releases of closing the door, and the mechanism of action is, and when drive arrangement 2 of cage 1 broke down, UPS uninterrupted power supply subassembly 9 provides the electric energy for brake device circular telegram release switch door 3, thereby make switch door 3 can open.
An identification component (as shown in fig. 4) matched with the landing door detection switch 10 is arranged on each floor of the building, and the landing door detection switch 10 can detect that the cage 1 is in the number of floors through the matching of the landing door detection switch 10 and the identification component;
the guardrail door detection switch 11 adopts a distance detection sensor, when the distance detection sensor detects a shielding object (as shown in fig. 4, the cage 1 is in one layer, the guardrail door detection switch 11 can detect a guardrail), the visual cage 1 is in one layer, and when the distance detection sensor does not detect the shielding object, the visual cage 1 is in an upper layer state.
Furthermore, the front side wall and the rear side wall of the suspension cage 1 are uniformly provided with vent holes.
Further, the bottom of the opening and closing door 3 is connected with a supporting roller 5 through a rotating shaft, and the supporting roller 5 is supported in the track 4.
Furthermore, a travel switch is arranged on the side edge of the suspension cage 1, and the position of the travel switch corresponds to the position of opening and closing the door 3.
The travel switch limits the switch position of the opening and closing door 3, and when the opening and closing door 3 moves to the maximum position, the opening and closing door 3 is contacted with the travel switch to stop moving;
when the door is closed, when the switch door 3 moves to be completely closed, the switch door 3 contacts with another travel switch to stop moving.
A control method of a door control device for elevator escape based on a UPS comprises the following steps:
s1: an in-cage emergency rescue switch 6 is pressed from the interior of the cage 1, and after the in-cage emergency rescue switch 6 is triggered, a driving system of the cage 1 cuts off the power supply of the driving device 2 and locks the driving device 2, so that the cage 1 can be suspended without sudden drop;
s2: the external condition is detected through a landing door detection switch 10 and a guardrail door detection switch 11, and whether the suspension cage 1 is in the flat-bed position is determined;
when the two side opening and closing doors 3 are opened, the brake devices on the two sides are released, namely double-door brake release; when the single-side switch door 3 is opened, the brake device is released, namely the single-door brake is released;
if the landing door detection switch 10 and the guardrail door detection switch 11 are matched to detect that the cage 1 is in a first-floor state, the brake device unlocks the opening and closing door 3, the emergency rescue switch 6 in the cage controls the safety edge sensors 12 on two sides to open the opening and closing door 3 from the inside, the opening and closing door 3 slides to the side edge, so that the opening and closing door 3 is opened, and trapped people can come out of the two opening and closing doors 3;
if the landing door detection switch 10 and the guardrail door detection switch 11 are matched to detect that the cage 1 is in a non-first-floor state, the emergency rescue switch 6 in the cage is controlled from the inside to unlock the brake device facing one side of the building, the opening and closing of the door 3 is enabled to be opened by sliding towards the side edge, trapped people can come out of the opening and closing door 3 facing one side of the building, as shown in fig. 5, at the moment, the situation is that the trapped people inside open the opening and closing door 3 from the inside of the cage 1, and self rescue is realized;
s3: confirm through layer door detection switch 10, guardrail door detection switch 11 that cage 1 is in the flat bed position:
if the switch door 3 is in the flat position, the switch door is allowed to be opened;
if the cage 1 is in the non-flat position, the safety edge sensor 12 is triggered from the outside to open the opening/closing door 3, so that the trapped people inside are rescued, as shown in fig. 6, when the cage 1 is in the non-flat position, the people need to be rescued by the outside, the safety edge sensor 12 is used as an external trigger switch, and the door opening mode is the same as the self-rescue door opening mode.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a lift gate control device for escaping based on UPS uninterrupted power source, includes cage (1), switch door (3) and brake equipment of setting on lateral wall about cage (1), the upside of cage (1) is provided with drive arrangement (2), its characterized in that: the switch door is characterized in that a track (4) is arranged at the bottom of the left side wall and the right side wall of the suspension cage (1), the bottom of the switch door (3) is positioned in the track (4), the brake device is arranged on the track (4), a slide bar (7) is transversely connected with the upper side of the left side wall and the right side wall of the suspension cage (1), two ends of the outer wall of the slide bar (7) are respectively installed on the side wall of the suspension cage (1) through a mounting seat, a transverse sliding sleeve (8) is sleeved on the outer wall of the slide bar (7), the transverse sliding sleeve (8) is matched with the slide bar (7), the bottom end of the transverse sliding sleeve (8) is fixedly connected with the upper end of the switch door (3), a safety edge sensor (12) is arranged on the side edge of the switch door (3), a layer door detection switch (10) and a guardrail door detection switch (11) are respectively arranged on the left side wall and the right side wall of the, the UPS is characterized in that an in-cage emergency rescue switch (6) is arranged on the inner wall of the suspension cage (1), and the UPS component (9) is electrically connected with the landing door detection switch (10), the guardrail door detection switch (11), the safety edge sensor (12), the brake device and the in-cage emergency rescue switch (6) through wires.
2. The UPS uninterruptible power supply-based door control device for elevator escape as claimed in claim 1, wherein: the front side wall and the rear side wall of the suspension cage (1) are uniformly provided with vent holes.
3. The UPS uninterruptible power supply-based door control device for elevator escape as claimed in claim 1, wherein: the bottom of the switch door (3) is connected with a supporting roller (5) through a rotating shaft, and the supporting roller (5) is supported in the track (4).
4. The UPS uninterruptible power supply-based door control device for elevator escape as claimed in claim 1, wherein: the side of the suspension cage (1) is provided with a travel switch, and the position of the travel switch corresponds to the position of the switch door (3).
5. A control method of an elevator escape door control apparatus based on UPS according to any one of claims 1-4, wherein: the control method of the elevator escape door control device based on the UPS comprises the following specific steps:
s1: an in-cage emergency rescue switch (6) is pressed from the interior of the suspension cage (1), and after the in-cage emergency rescue switch (6) is triggered, a driving system of the suspension cage (1) cuts off the power supply of the driving device (2) and locks the driving device (2), so that the suspension cage (1) can be suspended without sudden drop;
s2: the external condition is detected through a landing door detection switch (10) and a guardrail door detection switch (11), and whether the suspension cage (1) is in the flat-bed position is confirmed;
if the landing door detection switch (10) and the guardrail door detection switch (11) are matched to detect that the suspension cage (1) is in a first-floor state, the brake device unlocks the opening/closing door (3), the emergency rescue switch (6) in the cage controls the safety edge sensors (12) on two sides from the inside to open the opening/closing door (3), the opening/closing door (3) slides to the side edge, so that the opening/closing door (3) is opened, and trapped people can come out of the two opening/closing doors (3);
if the landing door detection switch (10) and the guardrail door detection switch (11) are matched to detect that the cage (1) is in a non-first-floor state, the emergency rescue switch (6) in the cage is controlled to unlock from the inside towards a brake device on one side of the building, the opening and closing door (3) is opened by sliding towards the side edge, and trapped people can come out from the opening and closing door (3) on one side of the building;
s3: confirm through layer door detection switch (10), guardrail door detection switch (11) that cage (1) is in the flat bed position:
if the switch door (3) is in the flat position, the switch door is allowed to be opened;
if the cage (1) is in a non-flat position, the safety edge sensor (12) is triggered from the outside to open the opening and closing door (3), so that the trapped persons in the cage are rescued.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010500503.0A CN111498653A (en) | 2020-06-04 | 2020-06-04 | Elevator escape door control device and method based on UPS (uninterrupted Power supply) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010500503.0A CN111498653A (en) | 2020-06-04 | 2020-06-04 | Elevator escape door control device and method based on UPS (uninterrupted Power supply) |
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| CN111498653A true CN111498653A (en) | 2020-08-07 |
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| CN202010500503.0A Pending CN111498653A (en) | 2020-06-04 | 2020-06-04 | Elevator escape door control device and method based on UPS (uninterrupted Power supply) |
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